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Gimp/plug-ins/gfig/gfig.c
Sven Neumann b5c177e5b6 applied an old patch from Carl Adams that was updated for 1.3 by Tino 
2003-08-31  Sven Neumann  <sven@gimp.org>

	* plug-ins/gfig/gfig.c: applied an old patch from Carl Adams that
	was updated for 1.3 by Tino Schwarze. The patch fixes the isometric
	grid so that its mathematical properties can be exploited.
2003-08-31 19:21:41 +00:00

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/*
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This is a plug-in for the GIMP.
*
* Generates images containing vector type drawings.
*
* Copyright (C) 1997 Andy Thomas alt@picnic.demon.co.uk
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Some of this code was taken from the Whirl plug-in
* which was copyrighted by Federico Mena Quintero (as below).
*
* Whirl plug-in --- distort an image into a whirlpool
* Copyright (C) 1997 Federico Mena Quintero
*
*/
/* Change log:
* 0.9 First public release.
* 0.95 Second release.
*
* 0.96 Added patch from Rob Saunders that introduces a isometric type grid
* Removed use of gtk_idle* stuff on position update. Not required.
*
* 1.0 Fixed to work with the new gtk+-0.99.4 (tooltips stuff has changed).
*
* 1.1 Fixed crashes when objects not fully defined
*
* 1.2 More bug fixes and prevent gtk warning when creating new figs
*
* 1.3 Portability fixes and fixed bug reports 257 and 258 from and 81 & 101 & 133
* http://www.wilberworks.com/bugs.cgi
*
* 1.4 Fixed isometric grid so that its mathematical properties can be
* exploited. Close wasn't good enough.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <string.h>
#ifdef __GNUC__
#warning GTK_DISABLE_DEPRECATED
#endif
#undef GTK_DISABLE_DEPRECATED
#include <gtk/gtk.h>
#ifdef G_OS_WIN32
# include <io.h>
# ifndef W_OK
# define W_OK 2
# endif
#endif
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
#include "gfig-stock.h"
#include "pix_data.h"
/***** Magic numbers *****/
#define PREVIEW_SIZE 400
#define SCALE_WIDTH 120
#define MIN_GRID 10
#define MAX_GRID 50
#define MAX_UNDO 10
#define MIN_UNDO 1
#define MAX_LOAD_LINE 256
#define SMALL_PREVIEW_SZ 48
#define BRUSH_PREVIEW_SZ 32
#define GFIG_HEADER "GFIG Version 0.1\n"
/* For the isometric grid */
#define SQRT3 1.73205080756887729353 /* Square root of 3 */
#define SIN_1o6PI_RAD 0.5 /* Sine 1/6 Pi Radians */
#define COS_1o6PI_RAD SQRT3 / 2 /* Cosine 1/6 Pi Radians */
#define TAN_1o6PI_RAD 1 / SQRT3 /* Tangent 1/6 Pi Radians == SIN / COS */
#define RECIP_TAN_1o6PI_RAD SQRT3 /* Reciprocal of Tangent 1/6 Pi Radians */
#define PREVIEW_MASK (GDK_EXPOSURE_MASK | \
GDK_POINTER_MOTION_MASK | \
GDK_BUTTON_PRESS_MASK | \
GDK_BUTTON_RELEASE_MASK | \
GDK_BUTTON_MOTION_MASK | \
GDK_KEY_PRESS_MASK | \
GDK_KEY_RELEASE_MASK)
static GimpDrawable *gfig_select_drawable;
static GtkWidget *gfig_preview;
static GtkWidget *pic_preview;
static GtkWidget *gfig_gtk_list;
static gint32 gfig_image;
static gint32 gfig_drawable;
static GtkWidget *brush_page_pw;
static GtkWidget *brush_sel_button;
static gint tile_width, tile_height;
static gint img_width, img_height, img_bpp, real_img_bpp;
static void query (void);
static void run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals);
static gint gfig_dialog (void);
static void gfig_ok_callback (GtkWidget *widget,
gpointer data);
static void gfig_paint_callback (GtkWidget *widget,
gpointer data);
static void gfig_clear_callback (GtkWidget *widget,
gpointer data);
static void gfig_undo_callback (GtkWidget *widget,
gpointer data);
static gboolean pic_preview_expose (GtkWidget *widget,
GdkEvent *event);
static void gfig_preview_realize (GtkWidget *widget);
static gboolean gfig_preview_expose (GtkWidget *widget,
GdkEvent *event);
static gboolean gfig_preview_events (GtkWidget *widget,
GdkEvent *event);
static gint gfig_brush_preview_events (GtkWidget *widget,
GdkEvent *event);
static void gfig_scale_update_scale (GtkAdjustment *adjustment,
gdouble *value);
static void gfig_scale2img_update (GtkWidget *widget,
gpointer data);
static gint gfig_scale_x (gint x);
static gint gfig_scale_y (gint y);
static gint gfig_invscale_x (gint x);
static gint gfig_invscale_y (gint y);
static GdkGC * gfig_get_grid_gc (GtkWidget *widget,
gint gctype);
static void gfig_pos_enable (GtkWidget *widget,
gpointer data);
static gint list_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer data);
static void rescan_button_callback (GtkWidget *widget,
gpointer data);
static void load_button_callback (GtkWidget *widget,
gpointer data);
static void save_button_callback (GtkWidget *widget,
gpointer data);
static void new_button_callback (GtkWidget *widget,
gpointer data);
static void gfig_do_delete_gfig_callback (GtkWidget *widget,
gboolean delete,
gpointer data);
static void gfig_delete_gfig_callback (GtkWidget *widget,
gpointer data);
static void edit_button_callback (GtkWidget *widget,
gpointer data);
static void merge_button_callback (GtkWidget *widget,
gpointer data);
static void about_button_callback (GtkWidget *widget,
gpointer data);
static void reload_button_callback (GtkWidget *widget,
gpointer data);
static void do_gfig (void);
static void dialog_update_preview (void);
static void draw_grid (void);
static void draw_grid_clear (void);
static void toggle_show_image (void);
static void toggle_obj_type (GtkWidget *widget,
gpointer data);
static void gfig_new_gc (void);
static void find_grid_pos (GdkPoint *p,
GdkPoint *gp,
guint state);
GimpPlugInInfo PLUG_IN_INFO =
{
NULL, /* init_proc */
NULL, /* quit_proc */
query, /* query_proc */
run, /* run_proc */
};
/* The types of an object */
/* Also includes actions that can be performed on objects */
typedef enum
{
LINE,
CIRCLE,
ELLIPSE,
ARC,
POLY,
STAR,
SPIRAL,
BEZIER,
MOVE_OBJ,
MOVE_POINT,
COPY_OBJ,
MOVE_COPY_OBJ,
DEL_OBJ,
NULL_OPER
} DobjType;
typedef enum
{
RECT_GRID = 0,
POLAR_GRID,
ISO_GRID
} GridType;
typedef enum
{
ORIGINAL_LAYER = 0,
SINGLE_LAYER,
MULTI_LAYER
} DrawonLayers;
typedef enum
{
LAYER_TRANS_BG = 0,
LAYER_BG_BG,
LAYER_FG_BG,
LAYER_WHITE_BG,
LAYER_COPY_BG
} LayersBGType;
typedef enum
{
PAINT_BRUSH_TYPE = 0,
PAINT_SELECTION_TYPE,
PAINT_SELECTION_FILL_TYPE
} PaintType;
typedef enum
{
BRUSH_BRUSH_TYPE = 0,
BRUSH_PENCIL_TYPE,
BRUSH_AIRBRUSH_TYPE,
BRUSH_PATTERN_TYPE
} BrushType;
#define GRID_TYPE_MENU 1
#define GRID_RENDER_MENU 2
#define GRID_IGNORE 0
#define GRID_HIGHTLIGHT 1
#define GRID_RESTORE 2
#define GFIG_BLACK_GC -2
#define GFIG_WHITE_GC -3
#define GFIG_GREY_GC -4
#define PAINT_LAYERS_MENU 1
#define PAINT_BGS_MENU 2
#define PAINT_TYPE_MENU 3
#define SELECT_TYPE_MENU 1
#define SELECT_ARCTYPE_MENU 2
#define SELECT_TYPE_MENU_FILL 3
#define SELECT_TYPE_MENU_WHEN 4
#define OBJ_SELECT_GT 1
#define OBJ_SELECT_LT 2
#define OBJ_SELECT_EQ 4
typedef struct
{
gint gridspacing;
GridType gridtype;
gboolean drawgrid;
gboolean snap2grid;
gboolean lockongrid;
gboolean showcontrol;
} GfigOpts;
/* Must keep in step with the above */
typedef struct
{
void *gridspacing;
GtkWidget *gridtypemenu;
GtkWidget *drawgrid;
GtkWidget *snap2grid;
GtkWidget *lockongrid;
GtkWidget *showcontrol;
} GfigOptWidgets;
static GfigOptWidgets gfig_opt_widget;
typedef struct
{
GfigOpts opts;
gboolean showimage;
gint maxundo;
gboolean showpos;
gdouble brushfade;
gdouble brushgradient;
gdouble airbrushpressure;
DrawonLayers onlayers;
LayersBGType onlayerbg;
PaintType painttype;
gboolean reverselines;
gboolean scaletoimage;
gdouble scaletoimagefp;
gboolean approxcircles;
BrushType brshtype;
DobjType otype;
} SelectItVals;
/* Values when first invoked */
static SelectItVals selvals =
{
{
MIN_GRID + (MAX_GRID - MIN_GRID)/2, /* Gridspacing */
RECT_GRID, /* Default to rectangle type */
FALSE, /* drawgrid */
FALSE, /* snap2grid */
FALSE, /* lockongrid */
TRUE /* show control points */
},
FALSE, /* show image */
MIN_UNDO + (MAX_UNDO - MIN_UNDO)/2, /* Max level of undos */
TRUE, /* Show pos updates */
0.0, /* Brush fade */
0.0, /* Brush gradient */
20.0, /* Air bursh pressure */
ORIGINAL_LAYER, /* Draw all objects on one layer */
LAYER_TRANS_BG, /* New layers background */
PAINT_BRUSH_TYPE, /* Default to use brushes */
FALSE, /* reverse lines */
TRUE, /* Scale to image when painting */
1.0, /* Scale to image fp */
FALSE, /* Approx circles by drawing lines */
BRUSH_BRUSH_TYPE, /* Default to use a brush */
LINE /* Initial object type */
};
typedef enum
{
ADD = 0,
SUBTRACT,
REPLACE,
INTERSECT
} SelectionType;
typedef enum
{
ARC_SEGMENT = 0,
ARC_SECTOR
} ArcType;
typedef enum
{
FILL_FOREGROUND = 0,
FILL_BACKGROUND,
FILL_PATTERN
} FillType;
typedef enum
{
FILL_EACH = 0,
FILL_AFTER
} FillWhen;
struct selection_option
{
SelectionType type; /* ADD etc .. */
gint antia; /* Boolean for Antia */
gint feather; /* Feather it ? */
gdouble feather_radius; /* Radius to feather */
ArcType as_pie; /* Arc type selection segment/sector */
FillType fill_type; /* Fill type for selection */
FillWhen fill_when; /* Fill on each selection or after all? */
gdouble fill_opacity; /* You can guess this one */
} selopt =
{
ADD, /* type */
FALSE, /* Antia */
FALSE, /* Feather */
10.0, /* feather radius */
ARC_SEGMENT, /* Arc as a segment */
FILL_PATTERN, /* Fill as pattern */
FILL_EACH, /* Fill after each selection */
100.0, /* Max opacity */
};
static gchar *gfig_path = NULL;
static GList *gfig_list = NULL;
static gint line_no;
static gint poly_num_sides = 3; /* Default to three sided object */
static gint star_num_sides = 3; /* Default to three sided object */
static gint spiral_num_turns = 4; /* Default to 4 turns */
static gint spiral_toggle = 0; /* 0 = clockwise -1 = anti-clockwise */
static gint bezier_closed = 0; /* Closed curve 0 = false 1 = true */
static gint bezier_line_frame = 0; /* Show frame = false 1 = true */
static gint obj_show_single = -1; /* -1 all >= 0 object number */
/* Structures etc for the objects */
/* Points used to draw the object */
typedef struct DobjPoints
{
struct DobjPoints *next;
GdkPoint pnt;
gint found_me;
} DobjPoints;
struct Dobject; /* fwd declaration for DobjFunc */
typedef void (*DobjFunc) (struct Dobject *);
typedef struct Dobject *(*DobjGenFunc) (struct Dobject *);
typedef struct Dobject *(*DobjLoadFunc) (FILE *);
typedef void (*DobjSaveFunc) (struct Dobject *, FILE *);
/* The object itself */
typedef struct Dobject
{
DobjType type; /* What is the type? */
gint type_data; /* Extra data needed by the object */
DobjPoints *points; /* List of points */
DobjFunc drawfunc; /* How do I draw myself */
DobjFunc paintfunc; /* Draw me on canvas */
DobjGenFunc copyfunc; /* copy */
DobjLoadFunc loadfunc; /* Load this type of object */
DobjSaveFunc savefunc; /* Save me out */
} Dobject;
static Dobject *obj_creating; /* Object we are creating */
static Dobject *tmp_line; /* Needed when drawing lines */
static Dobject *tmp_bezier; /* Neeed when drawing bezier curves */
typedef struct DAllObjs
{
struct DAllObjs *next;
Dobject *obj; /* Object on list */
} DAllObjs;
/* States of the object */
#define GFIG_OK 0x0
#define GFIG_MODIFIED 0x1
#define GFIG_READONLY 0x2
typedef struct DFigObj
{
gchar *name; /* Trailing name of file */
gchar *filename; /* Filename itself */
gchar *draw_name; /* Name of the drawing */
gfloat version; /* Version number of data file */
GfigOpts opts; /* Options enforced when fig saved */
DAllObjs *obj_list; /* Objects that make up this list */
gint obj_status; /* See above for possible values */
GtkWidget *list_item;
GtkWidget *label_widget;
GtkWidget *pixmap_widget;
} GFigObj;
typedef struct BrushDesc
{
gchar *name;
gdouble opacity;
gint spacing;
GimpLayerModeEffects paint_mode;
gint width;
gint height;
guchar *pv_buf; /* Buffer where brush placed */
gint16 x_off;
gint16 y_off;
const gchar *popup;
} BrushDesc;
static GFigObj *current_obj;
static Dobject *operation_obj;
static GdkPoint *move_all_pnt; /* Point moving all from */
static GFigObj *pic_obj;
static DAllObjs *undo_table[MAX_UNDO];
static gint need_to_scale;
static gint32 brush_image_ID = -1;
static GtkWidget *undo_widget;
static GtkWidget *gfig_op_menu; /* Popup menu in the list box */
static GtkWidget *object_list; /* Top preview frame window */
static GtkWidget *fade_out_hbox; /* Fade out widget in brush page */
static GtkWidget *gradient_hbox; /* Gradient widget in brush page */
static GtkWidget *pressure_hbox; /* Pressure widget in brush page */
static GtkWidget *pencil_hbox; /* Dummy widget in brush page */
static GtkWidget *pos_label; /* XY pos marker */
static GtkWidget *brush_page_widget; /* Widget for the brush part of notebook */
static GtkWidget *select_page_widget; /* Widget for the selection part
* of notebook */
static gint undo_water_mark = -1; /* Last slot filled in -1 = no undo */
static gint drawing_pic = FALSE; /* If true drawing to the small preview */
static GtkWidget *status_label_dname;
static GtkWidget *status_label_fname;
static GFigObj *gfig_obj_for_menu; /* More static data -
* need to know which object was selected*/
static GtkWidget *save_menu_item;
static GtkWidget *save_button;
/* Don't up just like BIGGG source files? */
static void object_start (GdkPoint *pnt, gint);
static void object_operation (GdkPoint *pnt, gint);
static void object_operation_start (GdkPoint *pnt, gint shift_down);
static void object_operation_end (GdkPoint *pnt, gint);
static void object_end (GdkPoint *pnt, gint shift_down);
static void object_update (GdkPoint * pnt);
static void add_to_all_obj (GFigObj * fobj, Dobject *obj);
static void d_delete_dobjpoints (DobjPoints *);
static Dobject * d_new_line (gint x, gint y);
static Dobject * d_new_circle (gint x, gint y);
static DAllObjs * copy_all_objs (DAllObjs *objs);
static void setup_undo (void);
static void d_pnt_add_line (Dobject *obj,
gint x, gint y, gint pos);
static GFigObj * gfig_load (const gchar *filename,
const gchar *name);
static void free_all_objs (DAllObjs * objs);
static void draw_objects (DAllObjs *objs, gint show_single);
static Dobject * d_load_line (FILE *from);
static Dobject * d_load_circle (FILE *from);
static gchar * get_line (gchar *buf, gint s,
FILE * from, gint init);
static GFigObj * gfig_new (void);
static void clear_undo (void);
static void list_button_update (GFigObj *obj);
static void prepend_to_all_obj (GFigObj *fobj, DAllObjs *nobj);
static void gfig_update_stat_labels (void);
static void gfig_obj_modified (GFigObj *obj, gint stat_type);
static void gfig_op_menu_create (GtkWidget *window);
static void gridtype_menu_callback (GtkWidget *widget, gpointer data);
static void draw_one_obj (Dobject * obj);
static void d_save_poly (Dobject * obj, FILE *to);
static Dobject * d_load_poly (FILE *from);
static void d_draw_poly (Dobject *obj);
static void d_paint_poly (Dobject *obj);
static Dobject * d_copy_poly (Dobject * obj);
static Dobject * d_new_poly (gint x, gint y);
static void d_update_poly (GdkPoint *pnt);
static void d_poly_start (GdkPoint *pnt, gint shift_down);
static void d_poly_end (GdkPoint *pnt, gint shift_down);
static void d_save_star (Dobject * obj, FILE *to);
static Dobject * d_load_star (FILE *from);
static void d_draw_star (Dobject *obj);
static void d_paint_star (Dobject *obj);
static Dobject * d_copy_star (Dobject * obj);
static Dobject * d_new_star (gint x, gint y);
static void d_update_star (GdkPoint *pnt);
static void d_star_start (GdkPoint *pnt, gint shift_down);
static void d_star_end (GdkPoint *pnt, gint shift_down);
static Dobject * d_load_spiral (FILE *from);
static void d_draw_spiral (Dobject *obj);
static void d_paint_spiral (Dobject *obj);
static Dobject * d_copy_spiral (Dobject * obj);
static Dobject * d_new_spiral (gint x, gint y);
static void d_update_spiral (GdkPoint *pnt);
static void d_spiral_start (GdkPoint *pnt, gint shift_down);
static void d_spiral_end (GdkPoint *pnt, gint shift_down);
static Dobject * d_load_bezier (FILE *from);
static void d_draw_bezier (Dobject *obj);
static void d_paint_bezier (Dobject *obj);
static Dobject * d_copy_bezier (Dobject * obj);
static Dobject * d_new_bezier (gint x, gint y);
static void d_update_bezier (GdkPoint *pnt);
static void d_bezier_start (GdkPoint *pnt, gint shift_down);
static void d_bezier_end (GdkPoint *pnt, gint shift_down);
static void new_obj_2edit (GFigObj *obj);
static Dobject * d_new_ellipse (gint x, gint y);
static Dobject * d_load_ellipse (FILE *from);
static Dobject * d_new_arc (gint x, gint y);
static Dobject * d_load_arc (FILE *from);
static gint load_options (GFigObj *gfig, FILE *fp);
static gint gfig_obj_counts (DAllObjs * objs);
static void gfig_brush_fill_preview_xy (GtkWidget *pw, gint x , gint y);
static void brush_list_button_callback (BrushDesc *bdesc);
/* globals */
static gint gfig_run;
static GdkGC *gfig_gc;
static GdkGC *grid_hightlight_drawgc;
static gint grid_gc_type = GTK_STATE_NORMAL;
static guchar *pv_cache = NULL;
static guchar preview_row[PREVIEW_SIZE*4];
/* Stuff for the preview bit */
static gint sel_x1, sel_y1, sel_x2, sel_y2;
static gint sel_width, sel_height;
static gint preview_width, preview_height;
static gint has_alpha;
static gdouble scale_x_factor, scale_y_factor;
static gdouble org_scale_x_factor, org_scale_y_factor;
MAIN ()
static void
query (void)
{
static GimpParamDef args[] =
{
{ GIMP_PDB_INT32, "run_mode", "Interactive, non-interactive" },
{ GIMP_PDB_IMAGE, "image", "Input image (unused)" },
{ GIMP_PDB_DRAWABLE, "drawable", "Input drawable" },
{ GIMP_PDB_INT32, "dummy", "dummy" }
};
gimp_install_procedure ("plug_in_gfig",
"Create Geometrical shapes with the Gimp",
"More here later",
"Andy Thomas",
"Andy Thomas",
"1997",
N_("<Image>/Filters/Render/_Gfig..."),
"RGB*, GRAY*",
GIMP_PLUGIN,
G_N_ELEMENTS (args), 0,
args, NULL);
}
static void
run (const gchar *name,
gint nparams,
const GimpParam *param,
gint *nreturn_vals,
GimpParam **return_vals)
{
GimpParam *values = g_new (GimpParam, 1);
GimpDrawable *drawable;
GimpRunMode run_mode;
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
gint pwidth, pheight;
/*kill (getpid (), 19);*/
INIT_I18N ();
run_mode = param[0].data.d_int32;
gfig_image = param[1].data.d_image;
gfig_drawable = param[2].data.d_drawable;
*nreturn_vals = 1;
*return_vals = values;
values[0].type = GIMP_PDB_STATUS;
values[0].data.d_status = status;
gfig_select_drawable = drawable = gimp_drawable_get (param[2].data.d_drawable);
tile_width = gimp_tile_width ();
tile_height = gimp_tile_height ();
/* TMP Hack - clear any selections */
if (! gimp_selection_is_empty (gfig_image))
gimp_selection_clear (gfig_image);
gimp_drawable_mask_bounds (drawable->drawable_id,
&sel_x1, &sel_y1, &sel_x2, &sel_y2);
sel_width = sel_x2 - sel_x1;
sel_height = sel_y2 - sel_y1;
/* Calculate preview size */
if (sel_width > sel_height)
{
pwidth = MIN (sel_width, PREVIEW_SIZE);
pheight = sel_height * pwidth / sel_width;
}
else
{
pheight = MIN (sel_height, PREVIEW_SIZE);
pwidth = sel_width * pheight / sel_height;
}
preview_width = MAX (pwidth, 2); /* Min size is 2 */
preview_height = MAX (pheight, 2);
org_scale_x_factor = scale_x_factor =
(gdouble) sel_width / (gdouble) preview_width;
org_scale_y_factor = scale_y_factor =
(gdouble) sel_height / (gdouble) preview_height;
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
/*gimp_get_data ("plug_in_gfig", &selvals);*/
if (! gfig_dialog ())
{
gimp_drawable_detach (drawable);
return;
}
break;
case GIMP_RUN_NONINTERACTIVE:
status = GIMP_PDB_CALLING_ERROR;
break;
case GIMP_RUN_WITH_LAST_VALS:
/*gimp_get_data ("plug_in_gfig", &selvals);*/
break;
default:
break;
}
if (gimp_drawable_is_rgb (drawable->drawable_id) ||
gimp_drawable_is_gray (drawable->drawable_id))
{
/* Set the tile cache size */
gimp_tile_cache_ntiles ((drawable->width + gimp_tile_width () - 1) /
gimp_tile_width ());
do_gfig ();
if (run_mode != GIMP_RUN_NONINTERACTIVE)
gimp_displays_flush ();
#if 0
if (run_mode == GIMP_RUN_INTERACTIVE)
gimp_set_data ("plug_in_gfig", &selvals, sizeof (SelectItVals));
#endif /* 0 */
}
else
{
status = GIMP_PDB_EXECUTION_ERROR;
}
values[0].data.d_status = status;
gimp_drawable_detach (drawable);
}
/*
Translate SPACE to "\\040", etc.
Taken from gflare plugin
*/
static void
gfig_name_encode (gchar *dest,
gchar *src)
{
gint cnt = MAX_LOAD_LINE - 1;
while (*src && cnt--)
{
if (g_ascii_iscntrl (*src) || g_ascii_isspace (*src) || *src == '\\')
{
sprintf (dest, "\\%03o", *src++);
dest += 4;
}
else
*dest++ = *src++;
}
*dest = '\0';
}
/*
Translate "\\040" to SPACE, etc.
*/
static void
gfig_name_decode (gchar *dest,
const gchar *src)
{
gint cnt = MAX_LOAD_LINE - 1;
guint tmp;
while (*src && cnt--)
{
if (*src == '\\' && *(src+1) && *(src+2) && *(src+3))
{
sscanf (src+1, "%3o", &tmp);
*dest++ = tmp;
src += 4;
}
else
*dest++ = *src++;
}
*dest = '\0';
}
/*
* Load all gfig, which are founded in gfig-path-list, into gfig_list.
* gfig-path-list must be initialized first. (plug_in_parse_gfig_path ())
* based on code from Gflare.
*/
static gint
gfig_list_pos (GFigObj *gfig)
{
GFigObj *g;
gint n;
GList *tmp;
n = 0;
for (tmp = gfig_list; tmp; tmp = g_list_next (tmp))
{
g = tmp->data;
if (strcmp (gfig->draw_name, g->draw_name) <= 0)
break;
n++;
}
return n;
}
/*
* Insert gfigs in alphabetical order
*/
static gint
gfig_list_insert (GFigObj *gfig)
{
gint n;
n = gfig_list_pos (gfig);
gfig_list = g_list_insert (gfig_list, gfig, n);
return n;
}
static void
gfig_free (GFigObj *gfig)
{
g_assert (gfig != NULL);
free_all_objs (gfig->obj_list);
g_free (gfig->name);
g_free (gfig->filename);
g_free (gfig->draw_name);
g_free (gfig);
}
static void
gfig_free_everything (GFigObj *gfig)
{
g_assert (gfig != NULL);
if (gfig->filename)
{
remove (gfig->filename);
}
gfig_free (gfig);
}
static void
gfig_list_free_all (void)
{
g_list_foreach (gfig_list, (GFunc) gfig_free, NULL);
g_list_free (gfig_list);
gfig_list = NULL;
}
static void
gfig_list_load_one (const GimpDatafileData *file_data,
gpointer user_data)
{
GFigObj *gfig;
gfig = gfig_load (file_data->filename, file_data->basename);
if (gfig)
{
/* Read only ?*/
if (access (file_data->filename, W_OK))
gfig->obj_status |= GFIG_READONLY;
gfig_list_insert (gfig);
}
}
static void
gfig_list_load_all (const gchar *path)
{
/* Make sure to clear any existing gfigs */
current_obj = pic_obj = NULL;
gfig_list_free_all ();
gimp_datafiles_read_directories (path, G_FILE_TEST_EXISTS,
gfig_list_load_one,
NULL);
if (! gfig_list)
{
GFigObj *gfig;
/* lets have at least one! */
gfig = gfig_new ();
gfig->draw_name = g_strdup (_("First Gfig"));
gfig_list_insert (gfig);
}
pic_obj = current_obj = gfig_list->data; /* set to first entry */
}
static GFigObj *
gfig_new (void)
{
return g_new0 (GFigObj, 1);
}
static void
gfig_load_objs (GFigObj *gfig,
gint load_count,
FILE *fp)
{
Dobject *obj;
gchar load_buf[MAX_LOAD_LINE];
/* Loading object */
/*kill (getpid (), 19);*/
/* Read first line */
while (load_count-- > 0)
{
obj = NULL;
get_line (load_buf, MAX_LOAD_LINE, fp, 0);
if (!strcmp (load_buf, "<LINE>"))
{
obj = d_load_line (fp);
}
else if (!strcmp (load_buf, "<CIRCLE>"))
{
obj = d_load_circle (fp);
}
else if (!strcmp (load_buf, "<ELLIPSE>"))
{
obj = d_load_ellipse (fp);
}
else if (!strcmp (load_buf, "<POLY>"))
{
obj = d_load_poly (fp);
}
else if (!strcmp (load_buf, "<STAR>"))
{
obj = d_load_star (fp);
}
else if (!strcmp (load_buf, "<SPIRAL>"))
{
obj = d_load_spiral (fp);
}
else if (!strcmp (load_buf, "<BEZIER>"))
{
obj = d_load_bezier (fp);
}
else if (!strcmp (load_buf, "<ARC>"))
{
obj = d_load_arc (fp);
}
else
{
g_warning ("Unknown obj type file %s line %d\n", gfig->filename, line_no);
}
if (obj)
{
add_to_all_obj (gfig, obj);
}
}
}
static GFigObj *
gfig_load (const gchar *filename,
const gchar *name)
{
GFigObj *gfig;
FILE *fp;
gchar load_buf[MAX_LOAD_LINE];
gchar str_buf[MAX_LOAD_LINE];
gint chk_count;
gint load_count = 0;
g_assert (filename != NULL);
#ifdef DEBUG
printf ("Loading %s (%s)\n", filename, name);
#endif /* DEBUG */
fp = fopen (filename, "r");
if (!fp)
{
g_warning ("Error opening: %s", filename);
return NULL;
}
gfig = gfig_new ();
gfig->name = g_strdup (name);
gfig->filename = g_strdup (filename);
/* HEADER
* draw_name
* version
* obj_list
*/
get_line (load_buf, MAX_LOAD_LINE, fp, 1);
if (strncmp (GFIG_HEADER, load_buf, strlen (load_buf)))
{
g_message ("File '%s' is not a gfig file", gfig->filename);
return NULL;
}
get_line (load_buf, MAX_LOAD_LINE, fp, 0);
sscanf (load_buf, "Name: %100s", str_buf);
gfig_name_decode (load_buf, str_buf);
gfig->draw_name = g_strdup (load_buf);
get_line (load_buf, MAX_LOAD_LINE, fp, 0);
if (strncmp (load_buf, "Version: ", 9) == 0)
gfig->version = g_ascii_strtod (load_buf + 9, NULL);
get_line (load_buf, MAX_LOAD_LINE, fp, 0);
sscanf (load_buf, "ObjCount: %d", &load_count);
if (load_options (gfig, fp))
{
g_message ("File '%s' corrupt file - Line %d Option section incorrect",
filename, line_no);
return NULL;
}
/*return (NULL);*/
gfig_load_objs (gfig, load_count, fp);
/* Check count ? */
chk_count = gfig_obj_counts (gfig->obj_list);
if (chk_count != load_count)
{
g_message ("File '%s' corrupt file - Line %d Object count to small",
filename, line_no);
return NULL;
}
fclose (fp);
if (!pic_obj)
pic_obj = gfig;
gfig->obj_status = GFIG_OK;
return gfig;
}
static void
save_options (FILE *fp)
{
/* Save options */
fprintf (fp, "<OPTIONS>\n");
fprintf (fp, "GridSpacing: %d\n", selvals.opts.gridspacing);
if (selvals.opts.gridtype == RECT_GRID)
fprintf (fp, "GridType: RECT_GRID\n");
else if (selvals.opts.gridtype == POLAR_GRID)
fprintf (fp, "GridType: POLAR_GRID\n");
else if (selvals.opts.gridtype == ISO_GRID)
fprintf (fp, "GridType: ISO_GRID\n");
else fprintf (fp, "GridType: RECT_GRID\n"); /* If in doubt, default to RECT_GRID */
fprintf (fp, "DrawGrid: %s\n", (selvals.opts.drawgrid)?"TRUE":"FALSE");
fprintf (fp, "Snap2Grid: %s\n", (selvals.opts.snap2grid)?"TRUE":"FALSE");
fprintf (fp, "LockOnGrid: %s\n", (selvals.opts.lockongrid)?"TRUE":"FALSE");
/* fprintf (fp, "ShowImage: %s\n", (selvals.opts.showimage)?"TRUE":"FALSE");*/
fprintf (fp, "ShowControl: %s\n", (selvals.opts.showcontrol)?"TRUE":"FALSE");
fprintf (fp, "</OPTIONS>\n");
}
static gint
load_bool (gchar *opt_buf,
gint *toset)
{
if (!strcmp (opt_buf, "TRUE"))
*toset = 1;
else if (!strcmp (opt_buf, "FALSE"))
*toset = 0;
else
return (-1);
return (0);
}
static void
update_options (GFigObj *old_obj)
{
/* Save old vals */
if (selvals.opts.gridspacing != old_obj->opts.gridspacing)
{
old_obj->opts.gridspacing = selvals.opts.gridspacing;
}
if (selvals.opts.gridtype != old_obj->opts.gridtype)
{
old_obj->opts.gridtype = selvals.opts.gridtype;
}
if (selvals.opts.drawgrid != old_obj->opts.drawgrid)
{
old_obj->opts.drawgrid = selvals.opts.drawgrid;
}
if (selvals.opts.snap2grid != old_obj->opts.snap2grid)
{
old_obj->opts.snap2grid = selvals.opts.snap2grid;
}
if (selvals.opts.lockongrid != old_obj->opts.lockongrid)
{
old_obj->opts.lockongrid = selvals.opts.lockongrid;
}
if (selvals.opts.showcontrol != old_obj->opts.showcontrol)
{
old_obj->opts.showcontrol = selvals.opts.showcontrol;
}
/* New vals */
if (selvals.opts.gridspacing != current_obj->opts.gridspacing)
{
gtk_adjustment_set_value
(GTK_ADJUSTMENT (gfig_opt_widget.gridspacing),
current_obj->opts.gridspacing);
}
if (selvals.opts.drawgrid != current_obj->opts.drawgrid)
{
gtk_toggle_button_set_active
(GTK_TOGGLE_BUTTON (gfig_opt_widget.drawgrid),
current_obj->opts.drawgrid);
}
if (selvals.opts.snap2grid != current_obj->opts.snap2grid)
{
gtk_toggle_button_set_active
(GTK_TOGGLE_BUTTON (gfig_opt_widget.snap2grid),
current_obj->opts.snap2grid);
}
if (selvals.opts.lockongrid != current_obj->opts.lockongrid)
{
gtk_toggle_button_set_active
(GTK_TOGGLE_BUTTON (gfig_opt_widget.lockongrid),
current_obj->opts.lockongrid);
}
if (selvals.opts.showcontrol != current_obj->opts.showcontrol)
{
gtk_toggle_button_set_active
(GTK_TOGGLE_BUTTON (gfig_opt_widget.showcontrol),
current_obj->opts.showcontrol);
}
if (selvals.opts.gridtype != current_obj->opts.gridtype)
{
gtk_option_menu_set_history
(GTK_OPTION_MENU (gfig_opt_widget.gridtypemenu),
current_obj->opts.gridtype);
gridtype_menu_callback
(gtk_menu_get_active
(GTK_MENU (gtk_option_menu_get_menu
(GTK_OPTION_MENU (gfig_opt_widget.gridtypemenu)))),
GINT_TO_POINTER (GRID_TYPE_MENU));
#ifdef DEBUG
printf ("Gridtype set in options to ");
if (current_obj->opts.gridtype == RECT_GRID)
printf ("RECT_GRID\n");
else if (current_obj->opts.gridtype == POLAR_GRID)
printf ("POLAR_GRID\n");
else if (current_obj->opts.gridtype == ISO_GRID)
printf ("ISO_GRID\n");
else printf ("NONE\n");
#endif /* DEBUG */
}
}
static gint
load_options (GFigObj *gfig,
FILE *fp)
{
gchar load_buf[MAX_LOAD_LINE];
gchar str_buf[MAX_LOAD_LINE];
gchar opt_buf[MAX_LOAD_LINE];
get_line (load_buf, MAX_LOAD_LINE, fp, 0);
#ifdef DEBUG
printf ("load '%s'\n", load_buf);
#endif /* DEBUG */
if (strcmp (load_buf, "<OPTIONS>"))
return (-1);
get_line (load_buf, MAX_LOAD_LINE, fp, 0);
#ifdef DEBUG
printf ("opt line '%s'\n", load_buf);
#endif /* DEBUG */
while (strcmp (load_buf, "</OPTIONS>"))
{
/* Get option name */
#ifdef DEBUG
printf ("num = %d\n", sscanf (load_buf, "%s %s", str_buf, opt_buf));
printf ("option %s val %s\n", str_buf, opt_buf);
#else
sscanf (load_buf, "%s %s", str_buf, opt_buf);
#endif /* DEBUG */
if (!strcmp (str_buf, "GridSpacing:"))
{
/* Value is decimal */
int sp = 0;
sp = atoi (opt_buf);
if (sp <= 0)
return (-1);
gfig->opts.gridspacing = sp;
}
else if (!strcmp (str_buf, "DrawGrid:"))
{
/* Value is bool */
if (load_bool (opt_buf, &gfig->opts.drawgrid))
return (-1);
}
else if (!strcmp (str_buf, "Snap2Grid:"))
{
/* Value is bool */
if (load_bool (opt_buf, &gfig->opts.snap2grid))
return (-1);
}
else if (!strcmp (str_buf, "LockOnGrid:"))
{
/* Value is bool */
if (load_bool (opt_buf, &gfig->opts.lockongrid))
return (-1);
}
else if (!strcmp (str_buf, "ShowControl:"))
{
/* Value is bool */
if (load_bool (opt_buf, &gfig->opts.showcontrol))
return (-1);
}
else if (!strcmp (str_buf, "GridType:"))
{
/* Value is string */
if (!strcmp (opt_buf, "RECT_GRID"))
gfig->opts.gridtype = RECT_GRID;
else if (!strcmp (opt_buf, "POLAR_GRID"))
gfig->opts.gridtype = POLAR_GRID;
else if (!strcmp (opt_buf, "ISO_GRID"))
gfig->opts.gridtype = ISO_GRID;
else
return (-1);
}
get_line (load_buf, MAX_LOAD_LINE, fp, 0);
#ifdef DEBUG
printf ("opt line '%s'\n", load_buf);
#endif /* DEBUG */
}
return (0);
}
static gint
gfig_obj_counts (DAllObjs *objs)
{
gint count = 0;
for (; objs; objs = objs->next)
count++;
return count;
}
static void
gfig_save_callbk (void)
{
FILE *fp;
DAllObjs *objs;
gint count = 0;
gchar *savename;
gchar *message;
gchar buf[G_ASCII_DTOSTR_BUF_SIZE];
gchar conv_buf[MAX_LOAD_LINE*3 +1];
savename = current_obj->filename;
fp = fopen (savename, "w+");
if (!fp)
{
message = g_strdup_printf (_("Error opening file '%s':\n%s"),
savename, g_strerror (errno));
g_message (message);
g_free (message);
return;
}
/* Write header out */
fputs (GFIG_HEADER, fp);
/*
* draw_name
* version
* obj_list
*
*/
gfig_name_encode (conv_buf, current_obj->draw_name);
fprintf (fp, "Name: %s\n", conv_buf);
fprintf (fp, "Version: %s\n",
g_ascii_formatd (buf, G_ASCII_DTOSTR_BUF_SIZE, "%f", current_obj->version));
objs = current_obj->obj_list;
count = gfig_obj_counts (objs);
fprintf (fp, "ObjCount: %d\n", count);
save_options (fp);
objs = current_obj->obj_list;
while (objs)
{
objs->obj->savefunc (objs->obj, fp);
objs = objs->next;
}
if (ferror (fp))
g_message ("Failed to write file\n");
else
{
gfig_obj_modified (current_obj, GFIG_OK);
current_obj->obj_status &= ~(GFIG_MODIFIED | GFIG_READONLY);
}
fclose (fp);
gfig_update_stat_labels ();
}
static void
file_selection_ok (GtkWidget *w,
GtkFileSelection *fs,
gpointer data)
{
const gchar *filenamebuf;
GFigObj *obj = g_object_get_data (G_OBJECT (fs), "user_data");
GFigObj *real_current;
filenamebuf = gtk_file_selection_get_filename (GTK_FILE_SELECTION (fs));
#ifdef DEBUG
g_print ("name selected '%s'\n", filenamebuf);
#endif /* DEBUG */
/* Get the name */
if (strlen (filenamebuf) == 0)
{
g_message ("Save: No filename given");
return;
}
if (g_file_test (filenamebuf, G_FILE_TEST_IS_DIR))
{
g_message ("Save: Can't save to a folder.");
return;
}
obj->filename = g_strdup (filenamebuf);
real_current = current_obj;
current_obj = obj;
gfig_save_callbk ();
current_obj = current_obj;
gtk_widget_destroy (GTK_WIDGET (fs));
}
static void
create_file_selection (GFigObj *obj,
gchar *tpath)
{
static GtkWidget *window = NULL;
if (!window)
{
window = gtk_file_selection_new (_("Save Gfig Drawing"));
gtk_window_set_position (GTK_WINDOW (window), GTK_WIN_POS_MOUSE);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed),
&window);
g_object_set_data (G_OBJECT (window), "user_data", obj);
g_signal_connect (GTK_FILE_SELECTION (window)->ok_button, "clicked",
G_CALLBACK (file_selection_ok),
window);
g_signal_connect_swapped (GTK_FILE_SELECTION (window)->cancel_button,
"clicked",
G_CALLBACK (gtk_widget_destroy),
window);
}
if (tpath)
{
gtk_file_selection_set_filename (GTK_FILE_SELECTION (window), tpath);
}
else if (gfig_path)
{
GList *list;
gchar *dir;
list = gimp_path_parse (gfig_path, 16, FALSE, 0);
dir = gimp_path_get_user_writable_dir (list);
gimp_path_free (list);
if (! dir)
dir = g_strdup (gimp_directory ());
gtk_file_selection_set_filename (GTK_FILE_SELECTION (window), dir);
g_free (dir);
}
else
{
const gchar *tmp = g_get_tmp_dir ();
gtk_file_selection_set_filename (GTK_FILE_SELECTION (window), tmp);
}
gtk_window_present (GTK_WINDOW (window));
}
static void
gfig_save (void)
{
/* Save the current object */
if (!current_obj->filename)
{
create_file_selection (current_obj, NULL);
return;
}
gfig_save_callbk ();
}
/* HACK WARNING */
static void * xxx;
/* Cache the preview image - updates are a lot faster. */
/* The preview_cache will contain the small image */
static void
cache_preview (void)
{
GimpPixelRgn src_rgn;
gint y, x;
guchar *src_rows;
guchar *p;
gint isgrey = 0;
gimp_pixel_rgn_init (&src_rgn, gfig_select_drawable,
sel_x1, sel_y1, sel_width, sel_height, FALSE, FALSE);
src_rows = g_new (guchar , sel_width * 4);
p = pv_cache = g_new (guchar , preview_width * preview_height * 4);
real_img_bpp = gimp_drawable_bpp (gfig_select_drawable->drawable_id);
has_alpha = gimp_drawable_has_alpha (gfig_select_drawable->drawable_id);
if (real_img_bpp < 3)
{
img_bpp = 3 + has_alpha;
}
else
{
img_bpp = real_img_bpp;
}
isgrey = gimp_drawable_is_gray (gfig_select_drawable->drawable_id);
for (y = 0; y < preview_height; y++)
{
gimp_pixel_rgn_get_row (&src_rgn,
src_rows,
sel_x1,
sel_y1 + (y*sel_height)/preview_height,
sel_width);
for (x = 0; x < (preview_width); x ++)
{
/* Get the pixels of each col */
gint i;
for (i = 0 ; i < 3; i++)
p[x*img_bpp+i] =
src_rows[((x*sel_width)/preview_width)*src_rgn.bpp +((isgrey)?0:i)];
if (has_alpha)
p[x*img_bpp+3] =
src_rows[((x*sel_width)/preview_width)*src_rgn.bpp + ((isgrey)?1:3)];
}
p += (preview_width*img_bpp);
}
g_free (src_rows);
}
static void
refill_cache (void)
{
GdkCursorType ctype1 = GDK_WATCH;
GdkCursorType ctype2 = GDK_TOP_LEFT_ARROW;
static GdkCursor *preview_cursor1;
static GdkCursor *preview_cursor2;
if (!preview_cursor1)
preview_cursor1 = gdk_cursor_new (ctype1);
if (!preview_cursor2)
preview_cursor2 = gdk_cursor_new (ctype2);
gdk_window_set_cursor
(gtk_widget_get_toplevel (GTK_WIDGET (gfig_preview))->window,
preview_cursor1);
gdk_window_set_cursor (gfig_preview->window, preview_cursor1);
gdk_flush ();
cache_preview ();
gdk_window_set_cursor
(gtk_widget_get_toplevel (GTK_WIDGET (gfig_preview))->window,
preview_cursor2);
toggle_obj_type (NULL, GINT_TO_POINTER (selvals.otype));
}
static GtkWidget *
gfig_list_item_new_with_label_and_pixmap (GFigObj *obj,
gchar *label,
GtkWidget *pix_widget)
{
GtkWidget *list_item;
GtkWidget *label_widget;
GtkWidget *hbox;
list_item = gtk_list_item_new ();
hbox = gtk_hbox_new (FALSE, 1);
gtk_container_add (GTK_CONTAINER (list_item), hbox);
gtk_widget_show (hbox);
gtk_box_pack_start (GTK_BOX (hbox), pix_widget, FALSE, FALSE, 0);
label_widget = gtk_label_new (label);
gtk_misc_set_alignment (GTK_MISC (label_widget), 0.0, 0.5);
gtk_container_add (GTK_CONTAINER (hbox), label_widget);
gtk_widget_show (obj->label_widget = label_widget);
gtk_widget_show (obj->pixmap_widget = pix_widget);
gtk_widget_show (obj->list_item = list_item);
return list_item;
}
static void
gfig_obj_modified (GFigObj *obj,
gint stat_type)
{
g_assert (obj != NULL);
if (obj->obj_status == stat_type)
return;
/* Set the new one up */
if (stat_type == GFIG_MODIFIED)
gimp_pixmap_set (GIMP_PIXMAP (obj->pixmap_widget), Floppy6_xpm);
else
gimp_pixmap_set (GIMP_PIXMAP (obj->pixmap_widget), blank_xpm);
}
static void
select_button_clicked (GtkWidget *widget,
gpointer data)
{
gint type = GPOINTER_TO_INT (data);
gint count = 0;
DAllObjs *objs;
if (current_obj)
{
for (objs = current_obj->obj_list; objs; objs = objs->next)
count++;
}
switch (type)
{
case OBJ_SELECT_LT:
obj_show_single--;
if (obj_show_single < 0)
obj_show_single = count - 1;
break;
case OBJ_SELECT_GT:
obj_show_single++;
if (obj_show_single >= count)
obj_show_single = 0;
break;
case OBJ_SELECT_EQ:
obj_show_single = -1; /* Reset to show all */
break;
default:
break;
}
draw_grid_clear ();
}
static GtkWidget *
obj_select_buttons (void)
{
GtkWidget *button;
GtkWidget *image;
GtkWidget *hbox, *vbox;
vbox = gtk_vbox_new (TRUE, 0);
gtk_widget_show (vbox);
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (vbox), hbox, TRUE, TRUE, 0);
gtk_widget_show (hbox);
button = gtk_button_new ();
gimp_help_set_help_data (button, _("Show previous object"), NULL);
gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
g_signal_connect (button, "clicked",
G_CALLBACK (select_button_clicked),
GINT_TO_POINTER (OBJ_SELECT_LT));
gtk_widget_show (button);
image = gtk_image_new_from_stock (GTK_STOCK_GO_BACK,
GTK_ICON_SIZE_BUTTON);
gtk_container_add (GTK_CONTAINER (button), image);
gtk_widget_show (image);
button = gtk_button_new ();
gimp_help_set_help_data (button, _("Show next object"), NULL);
gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
g_signal_connect (button, "clicked",
G_CALLBACK (select_button_clicked),
GINT_TO_POINTER (OBJ_SELECT_GT));
gtk_widget_show (button);
image = gtk_image_new_from_stock (GTK_STOCK_GO_FORWARD,
GTK_ICON_SIZE_BUTTON);
gtk_container_add (GTK_CONTAINER (button), image);
gtk_widget_show (image);
button = gtk_button_new_with_label (_("All"));
gimp_help_set_help_data (button, _("Show all objects"), NULL);
gtk_box_pack_start (GTK_BOX (vbox), button, TRUE, TRUE, 0);
g_signal_connect (button, "clicked",
G_CALLBACK (select_button_clicked),
GINT_TO_POINTER (OBJ_SELECT_EQ));
gtk_widget_show (button);
return vbox;
}
static GtkWidget *
but_with_pix (const gchar *stock_id,
GSList **group,
gint baction)
{
GtkWidget *button;
button = gtk_radio_button_new_with_label (*group, stock_id);
gtk_button_set_use_stock (GTK_BUTTON (button), TRUE);
gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (button), FALSE);
g_signal_connect (button, "toggled",
G_CALLBACK (toggle_obj_type),
GINT_TO_POINTER (baction));
gtk_widget_show (button);
*group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
return button;
}
static GtkWidget *
small_preview (void)
{
GtkWidget *frame;
GtkWidget *vbox;
gint y;
vbox = gtk_vbox_new (FALSE, 0);
gtk_widget_show (vbox);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
pic_preview = gtk_preview_new (GTK_PREVIEW_COLOR);
gtk_preview_size (GTK_PREVIEW (pic_preview),
SMALL_PREVIEW_SZ, SMALL_PREVIEW_SZ);
gtk_container_add (GTK_CONTAINER (frame), pic_preview);
gtk_widget_show (pic_preview);
/* Fill with white */
for (y = 0; y < SMALL_PREVIEW_SZ; y++)
{
guchar prow[SMALL_PREVIEW_SZ*3];
memset (prow, 255, SMALL_PREVIEW_SZ * 3);
gtk_preview_draw_row (GTK_PREVIEW (pic_preview), prow,
0, y, SMALL_PREVIEW_SZ);
}
g_signal_connect_after (pic_preview, "expose_event",
G_CALLBACK (pic_preview_expose),
NULL);
return vbox;
}
/* Special case for now - options on poly/star/spiral button */
static void
num_sides_dialog (gchar *d_title,
gint *num_sides,
gint *which_way,
gint adj_min,
gint adj_max)
{
GtkWidget *window;
GtkWidget *table;
GtkObject *size_data;
window = gimp_dialog_new (d_title, "gfig",
gimp_standard_help_func, "filters/gfig.html",
GTK_WIN_POS_MOUSE,
FALSE, TRUE, FALSE,
GTK_STOCK_CLOSE, gtk_widget_destroy,
NULL, 1, NULL, TRUE, TRUE,
NULL);
table = gtk_table_new (which_way ? 2 : 1, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_container_set_border_width (GTK_CONTAINER (table), 6);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (window)->vbox), table,
FALSE, FALSE, 0);
gtk_widget_show (table);
size_data = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
_("Number of Sides/Points/Turns:"), 0, 0,
*num_sides, adj_min, adj_max, 1, 10, 0,
TRUE, 0, 0,
NULL, NULL);
g_signal_connect (size_data, "value_changed",
G_CALLBACK (gimp_int_adjustment_update),
num_sides);
if (which_way)
{
GtkWidget *option_menu;
option_menu =
gimp_option_menu_new2 (FALSE, G_CALLBACK (gimp_menu_item_update),
which_way, GINT_TO_POINTER (*which_way),
_("Clockwise"), GINT_TO_POINTER (0), NULL,
_("Anti-Clockwise"), GINT_TO_POINTER (1), NULL,
NULL);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
_("Orientation:"), 1.0, 0.5,
option_menu, 1, TRUE);
}
gtk_widget_show (window);
}
static void
bezier_dialog (void)
{
static GtkWidget *window = NULL;
GtkWidget *vbox;
GtkWidget *toggle;
if (window)
{
gtk_window_present (GTK_WINDOW (window));
return;
}
window = gimp_dialog_new (_("Bezier Settings"), "gfig",
gimp_standard_help_func, "filters/gfig.html",
GTK_WIN_POS_MOUSE,
FALSE, FALSE, FALSE,
GTK_STOCK_CLOSE, gtk_widget_destroy,
NULL, 1, NULL, TRUE, TRUE,
NULL);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed),
&window);
vbox = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 4);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (window)->vbox), vbox,
FALSE, FALSE, 0);
gtk_widget_show (vbox);
toggle = gtk_check_button_new_with_label (_("Closed"));
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&bezier_closed);
gimp_help_set_help_data (toggle,
_("Close curve on completion"), NULL);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), bezier_closed);
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
gtk_widget_show (toggle);
toggle = gtk_check_button_new_with_label (_("Show Line Frame"));
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&bezier_line_frame);
gimp_help_set_help_data (toggle,
_("Draws lines between the control points. "
"Only during curve creation"), NULL);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), bezier_line_frame);
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
gtk_widget_show (toggle);
gtk_widget_show (window);
}
static gint
poly_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer data)
{
if ((event->type == GDK_2BUTTON_PRESS) &&
(event->button == 1))
num_sides_dialog (_("Regular Polygon Number of Sides"),
&poly_num_sides, NULL, 3, 200);
return FALSE;
}
static gint
star_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer data)
{
if ((event->type == GDK_2BUTTON_PRESS) &&
(event->button == 1))
num_sides_dialog (_("Star Number of Points"),
&star_num_sides, NULL, 3, 200);
return FALSE;
}
static gint
spiral_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer data)
{
if ((event->type == GDK_2BUTTON_PRESS) &&
(event->button == 1))
num_sides_dialog (_("Spiral Number of Points"),
&spiral_num_turns, &spiral_toggle, 1, 20);
return FALSE;
}
static gint
bezier_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer data)
{
if ((event->type == GDK_2BUTTON_PRESS) &&
(event->button == 1))
bezier_dialog ();
return FALSE;
}
static GtkWidget *
draw_buttons (GtkWidget *ww)
{
GtkWidget *button;
GtkWidget *vbox;
GSList *group = NULL;
/* Create group */
vbox = gtk_vbox_new (FALSE, 0);
/* Put buttons in */
button = but_with_pix (GFIG_STOCK_LINE, &group, LINE);
gtk_box_pack_start (GTK_BOX (vbox), button, TRUE, TRUE, 0);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Create line"), NULL);
button = but_with_pix (GFIG_STOCK_CIRCLE, &group, CIRCLE);
gtk_container_add (GTK_CONTAINER (vbox), button);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Create circle"), NULL);
button = but_with_pix (GFIG_STOCK_ELLIPSE, &group, ELLIPSE);
gtk_container_add (GTK_CONTAINER (vbox), button);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Create ellipse"), NULL);
button = but_with_pix (GFIG_STOCK_CURVE, &group, ARC);
gtk_container_add (GTK_CONTAINER (vbox), button);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Create arch"), NULL);
button = but_with_pix (GFIG_STOCK_POLYGON, &group, POLY);
gtk_container_add (GTK_CONTAINER (vbox), button);
gtk_widget_show (button);
g_signal_connect (button, "button_press_event",
G_CALLBACK (poly_button_press),
NULL);
gimp_help_set_help_data (button, _("Create reg polygon"), NULL);
button = but_with_pix (GFIG_STOCK_STAR, &group, STAR);
gtk_container_add (GTK_CONTAINER (vbox), button);
gtk_widget_show (button);
g_signal_connect (button, "button_press_event",
G_CALLBACK (star_button_press),
NULL);
gimp_help_set_help_data (button, _("Create star"), NULL);
button = but_with_pix (GFIG_STOCK_SPIRAL, &group, SPIRAL);
gtk_box_pack_start (GTK_BOX (vbox), button, TRUE, TRUE, 0);
gtk_widget_show (button);
g_signal_connect (button, "button_press_event",
G_CALLBACK (spiral_button_press),
NULL);
gimp_help_set_help_data (button, _("Create spiral"), NULL);
button = but_with_pix (GFIG_STOCK_BEZIER, &group, BEZIER);
gtk_box_pack_start (GTK_BOX (vbox), button, TRUE, TRUE, 0);
gtk_widget_show (button);
g_signal_connect (button, "button_press_event",
G_CALLBACK (bezier_button_press),
NULL);
gimp_help_set_help_data (button,
_("Create bezier curve. "
"Shift + Button ends object creation."), NULL);
button = but_with_pix (GFIG_STOCK_MOVE_OBJECT, &group, MOVE_OBJ);
gtk_container_add (GTK_CONTAINER (vbox), button);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Move an object"), NULL);
button = but_with_pix (GFIG_STOCK_MOVE_POINT, &group, MOVE_POINT);
gtk_container_add (GTK_CONTAINER (vbox), button);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Move a single point"), NULL);
button = but_with_pix (GFIG_STOCK_COPY_OBJECT, &group, COPY_OBJ);
gtk_container_add (GTK_CONTAINER (vbox), button);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Copy an object"), NULL);
button = but_with_pix (GFIG_STOCK_DELETE_OBJECT, &group, DEL_OBJ);
gtk_container_add (GTK_CONTAINER (vbox), button);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Delete an object"), NULL);
button = obj_select_buttons ();
gtk_container_add (GTK_CONTAINER (vbox), button);
gtk_widget_show (button);
gtk_widget_show (vbox);
return vbox;
}
/* Brush preview stuff */
static gint
gfig_brush_preview_events (GtkWidget *widget,
GdkEvent *event)
{
GdkEventButton *bevent;
GdkEventMotion *mevent;
static GdkPoint point;
static int have_start = 0;
switch (event->type)
{
case GDK_EXPOSE:
break;
case GDK_BUTTON_PRESS:
bevent = (GdkEventButton *) event;
point.x = bevent->x;
point.y = bevent->y;
have_start = 1;
break;
case GDK_BUTTON_RELEASE:
bevent = (GdkEventButton *) event;
have_start = 0;
break;
case GDK_MOTION_NOTIFY:
mevent = (GdkEventMotion *) event;
if (!have_start || !(mevent->state & GDK_BUTTON1_MASK))
break;
gfig_brush_fill_preview_xy (widget,
point.x - mevent->x,
point.y - mevent->y);
gtk_widget_queue_draw (widget);
point.x = mevent->x;
point.y = mevent->y;
break;
default:
break;
}
return FALSE;
}
static void
gfig_brush_update_preview (GtkWidget *widget,
gpointer data)
{
BrushDesc *bdesc = g_object_get_data (G_OBJECT (data), "brush-desc");
brush_list_button_callback (bdesc);
}
static void
gfig_brush_menu_callback (GtkWidget *widget,
gpointer data)
{
gimp_menu_item_update (widget, &selvals.brshtype);
switch (selvals.brshtype)
{
case BRUSH_BRUSH_TYPE:
gtk_widget_hide (pressure_hbox);
gtk_widget_hide (pencil_hbox);
gtk_widget_show (fade_out_hbox);
gtk_widget_show (gradient_hbox);
break;
case BRUSH_PENCIL_TYPE:
gtk_widget_hide (fade_out_hbox);
gtk_widget_hide (gradient_hbox);
gtk_widget_hide (pressure_hbox);
gtk_widget_show (pencil_hbox);
break;
case BRUSH_AIRBRUSH_TYPE:
gtk_widget_hide (fade_out_hbox);
gtk_widget_hide (gradient_hbox);
gtk_widget_hide (pencil_hbox);
gtk_widget_show (pressure_hbox);
break;
case BRUSH_PATTERN_TYPE:
gtk_widget_hide (fade_out_hbox);
gtk_widget_hide (gradient_hbox);
gtk_widget_hide (pressure_hbox);
gtk_widget_show (pencil_hbox);
break;
default:
g_warning ("Internal error - invalid brush type");
break;
}
gfig_brush_update_preview (widget, data);
}
static GtkWidget *
gfig_brush_preview (GtkWidget **pv)
{
GtkWidget *option_menu;
GtkWidget *frame;
GtkWidget *hbox;
GtkWidget *vbox;
gint y;
hbox = gtk_hbox_new (FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 4);
gtk_widget_show (hbox);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_container_set_border_width (GTK_CONTAINER (frame), 0);
gtk_widget_show (frame);
*pv = gtk_preview_new (GTK_PREVIEW_COLOR);
gtk_widget_show (*pv);
gtk_widget_set_events (GTK_WIDGET (*pv), PREVIEW_MASK);
g_signal_connect (*pv, "event",
G_CALLBACK (gfig_brush_preview_events),
NULL);
gtk_preview_size (GTK_PREVIEW (*pv), BRUSH_PREVIEW_SZ, BRUSH_PREVIEW_SZ);
gtk_container_add (GTK_CONTAINER (frame), *pv);
/* Fill with white */
for (y = 0; y < BRUSH_PREVIEW_SZ; y++)
{
guchar prow[BRUSH_PREVIEW_SZ*3];
memset (prow, -1, BRUSH_PREVIEW_SZ * 3);
gtk_preview_draw_row (GTK_PREVIEW (*pv), prow, 0, y, BRUSH_PREVIEW_SZ);
}
/* Now the buttons */
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 4);
gtk_widget_show (vbox);
option_menu =
gimp_option_menu_new2 (FALSE, G_CALLBACK (gfig_brush_menu_callback),
*pv, GINT_TO_POINTER (selvals.brshtype),
_("Brush"), GINT_TO_POINTER (BRUSH_BRUSH_TYPE), NULL,
_("Airbrush"), GINT_TO_POINTER (BRUSH_AIRBRUSH_TYPE), NULL,
_("Pencil"), GINT_TO_POINTER (BRUSH_PENCIL_TYPE), NULL,
_("Pattern"), GINT_TO_POINTER (BRUSH_PATTERN_TYPE), NULL,
NULL);
gtk_widget_show (option_menu);
gtk_container_add (GTK_CONTAINER (vbox), option_menu);
gimp_help_set_help_data (option_menu,
_("Use the brush/pencil or the airbrush when drawing "
"on the image. Pattern paints with currently "
"selected brush with a pattern. Only applies to "
"circles/ellipses if Approx. Circles/Ellipses "
"toggle is set."), NULL);
gtk_container_add (GTK_CONTAINER (hbox), vbox);
gtk_container_add (GTK_CONTAINER (hbox), frame);
return hbox;
}
static void
gfig_brush_fill_preview_xy (GtkWidget *pw,
gint x1,
gint y1)
{
gint row_count;
BrushDesc *bdesc = (BrushDesc *) g_object_get_data (G_OBJECT (pw),
"brush-desc");
/* Adjust start position */
bdesc->x_off += x1;
bdesc->y_off += y1;
if (bdesc->y_off < 0)
bdesc->y_off = 0;
if (bdesc->y_off > (bdesc->height - BRUSH_PREVIEW_SZ))
bdesc->y_off = bdesc->height - BRUSH_PREVIEW_SZ;
if (bdesc->x_off < 0)
bdesc->x_off = 0;
if (bdesc->x_off > (bdesc->width - BRUSH_PREVIEW_SZ))
bdesc->x_off = bdesc->width - BRUSH_PREVIEW_SZ;
/* Given an x and y fill preview in correctly offsetted */
for (row_count = 0; row_count < BRUSH_PREVIEW_SZ; row_count++)
gtk_preview_draw_row (GTK_PREVIEW (pw),
&bdesc->pv_buf[bdesc->x_off * 3
+ (bdesc->width
* 3 * (row_count + bdesc->y_off))],
0,
row_count,
BRUSH_PREVIEW_SZ);
}
static void
gfig_brush_fill_preview (GtkWidget *pw,
gint32 layer_ID,
BrushDesc *bdesc)
{
GimpPixelRgn src_rgn;
GimpDrawable *brushdrawable;
g_free (bdesc->pv_buf); /* Free old area */
brushdrawable = gimp_drawable_get (layer_ID);
/* Fill the preview with the current brush name */
gimp_pixel_rgn_init (&src_rgn, brushdrawable,
0, 0, bdesc->width, bdesc->height, FALSE, FALSE);
bdesc->pv_buf = g_new (guchar, bdesc->width * bdesc->height * 3);
bdesc->x_off = bdesc->y_off = 0; /* Start from top left */
gimp_pixel_rgn_get_rect (&src_rgn, bdesc->pv_buf,
0, 0, bdesc->width, bdesc->height);
/* Dump the pv_buf into the preview area */
gfig_brush_fill_preview_xy (pw, 0, 0);
}
static void
mygimp_brush_set (gchar *name)
{
GimpParam *return_vals;
int nreturn_vals;
return_vals = gimp_run_procedure ("gimp_brushes_set_brush",
&nreturn_vals,
GIMP_PDB_STRING, name,
GIMP_PDB_END);
if (return_vals[0].data.d_status != GIMP_PDB_SUCCESS)
{
g_message ("Can't set brush...(1)");
}
gimp_destroy_params (return_vals, nreturn_vals);
}
static gchar *
mygimp_brush_get (void)
{
GimpParam *return_vals;
gint nreturn_vals;
gchar *name = NULL;
return_vals = gimp_run_procedure ("gimp_brushes_get_brush",
&nreturn_vals,
GIMP_PDB_END);
if (return_vals[0].data.d_status == GIMP_PDB_SUCCESS)
name = g_strdup (return_vals[1].data.d_string);
gimp_destroy_params (return_vals, nreturn_vals);
return name;
}
static void
mygimp_brush_info (gint32 *width,
gint32 *height)
{
GimpParam *return_vals;
gint nreturn_vals;
return_vals = gimp_run_procedure ("gimp_brushes_get_brush",
&nreturn_vals,
GIMP_PDB_END);
if (return_vals[0].data.d_status == GIMP_PDB_SUCCESS)
{
*width = MAX (return_vals[2].data.d_int32, 32);
*height = MAX (return_vals[3].data.d_int32, 32);
}
else
{
g_message ("Failed to get brush info");
*width = *height = 48;
}
gimp_destroy_params (return_vals, nreturn_vals);
}
static void
gfig_paint (BrushType brush_type,
gint32 drawable_ID,
gint seg_count,
gdouble line_pnts[])
{
switch (brush_type)
{
case BRUSH_BRUSH_TYPE:
gimp_paintbrush (drawable_ID,
selvals.brushfade,
seg_count, line_pnts,
GIMP_PAINT_CONSTANT,
selvals.brushgradient);
break;
case BRUSH_PENCIL_TYPE:
gimp_pencil (drawable_ID,
seg_count, line_pnts);
break;
case BRUSH_AIRBRUSH_TYPE:
gimp_airbrush (drawable_ID,
selvals.airbrushpressure,
seg_count, line_pnts);
break;
case BRUSH_PATTERN_TYPE:
gimp_clone (drawable_ID,
drawable_ID,
GIMP_PATTERN_CLONE,
0.0, 0.0,
seg_count, line_pnts);
break;
}
}
static gint32
gfig_gen_brush_preview (BrushDesc *bdesc)
{
/* Given the name of a brush then paint it and return the ID of the image
* the preview can be got from
*/
static gint32 layer_ID = -1;
gchar *saved_name;
gint32 width, height;
gdouble line_pnts[2];
GimpRGB foreground;
GimpRGB background;
GimpRGB color;
if (brush_image_ID == -1)
{
/* Create a new image */
brush_image_ID = gimp_image_new (48, 48, 0);
if (brush_image_ID < 0)
{
g_message ("Failed to generate brush preview");
return -1;
}
if ((layer_ID = gimp_layer_new (brush_image_ID,
"Brush preview",
48,
48,
GIMP_RGB_IMAGE,
100.0, /* opacity */
GIMP_NORMAL_MODE)) < 0)
{
g_message ("Error in creating layer for brush preview");
return -1;
}
gimp_image_add_layer (brush_image_ID, layer_ID, -1);
}
/* Need this later to delete it */
/* Store foreground & backgroud colours set to black/white
* paint with brush
* restore colours
*/
gimp_palette_get_foreground (&foreground);
gimp_palette_get_background (&background);
saved_name = mygimp_brush_get ();
gimp_rgba_set (&color, 1.0, 1.0, 1.0, 1.0);
gimp_palette_set_background (&color);
gimp_rgba_set (&color, 0.0, 0.0, 0.0, 1.0);
gimp_palette_set_foreground (&color);
mygimp_brush_set (bdesc->name);
mygimp_brush_info (&width, &height);
bdesc->width = width;
bdesc->height = height;
line_pnts[0] = (gdouble) width / 2;
line_pnts[1] = (gdouble) height / 2;
gimp_layer_resize (layer_ID, width, height, 0, 0);
gimp_image_resize (brush_image_ID, width, height, 0, 0);
gimp_drawable_fill (layer_ID, GIMP_BACKGROUND_FILL);
/* Blob of paint */
gfig_paint (selvals.brshtype,
layer_ID,
2, line_pnts);
gimp_palette_set_background (&background);
gimp_palette_set_foreground (&foreground);
mygimp_brush_set (saved_name);
g_free (saved_name);
return layer_ID;
}
static void
brush_list_button_callback (BrushDesc *bdesc)
{
gint32 layer_ID;
if ((layer_ID = gfig_gen_brush_preview (bdesc)) != -1)
{
g_object_set_data (G_OBJECT (brush_page_pw), "brush-desc", bdesc);
gfig_brush_fill_preview (brush_page_pw, layer_ID, bdesc);
gtk_widget_queue_draw (brush_page_pw);
}
}
/* Build the dialog up. This was the hard part! */
static GtkWidget *page_menu_bg;
static GtkWidget *page_menu_layers;
static void
gfig_brush_pane_activate (GtkWidget *widget,
gpointer data)
{
gboolean flag = GPOINTER_TO_INT (data);
if (flag)
{
gtk_widget_show (brush_page_widget);
}
else
{
gtk_widget_hide (brush_page_widget);
}
gtk_widget_set_sensitive (brush_page_widget, flag);
}
static void
gfig_select_pane_activate (GtkWidget *widget,
gpointer data)
{
gboolean flag = GPOINTER_TO_INT (data);
if (flag)
{
gtk_widget_show (select_page_widget);
}
else
{
gtk_widget_hide (select_page_widget);
}
gtk_widget_set_sensitive (select_page_widget, flag);
}
static void
paint_menu_callback (GtkWidget *widget,
gpointer data)
{
gint mtype = GPOINTER_TO_INT (data);
if (mtype == PAINT_LAYERS_MENU)
{
selvals.onlayers = (DrawonLayers)
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-item-data"));
#ifdef DEBUG
printf ("layer type set to %s\n",
selvals.onlayers == SINGLE_LAYER ? "SINGLE_LAYER" : "MULTI_LAYER");
#endif /* DEBUG */
/* Type only meaningful if creating new layers */
if (selvals.onlayers == ORIGINAL_LAYER)
gtk_widget_set_sensitive (page_menu_bg, FALSE);
else
gtk_widget_set_sensitive (page_menu_bg, TRUE);
}
else if (mtype == PAINT_BGS_MENU)
{
selvals.onlayerbg = (LayersBGType)
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-item-data"));
#ifdef DEBUG
printf ("BG type = %d\n", selvals.onlayerbg);
#endif /* DEBUG */
}
else if (mtype == PAINT_TYPE_MENU)
{
selvals.painttype = (PaintType)
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-item-data"));
#ifdef DEBUG
printf ("Got type menu = %d\n", selvals.painttype);
#endif /* DEBUG */
switch (selvals.painttype)
{
case PAINT_BRUSH_TYPE:
gtk_widget_set_sensitive (select_page_widget, FALSE);
gtk_widget_set_sensitive (brush_page_widget, TRUE);
gtk_widget_set_sensitive (page_menu_layers, TRUE);
if (selvals.onlayers == ORIGINAL_LAYER)
gtk_widget_set_sensitive (page_menu_bg, FALSE);
else
gtk_widget_set_sensitive (page_menu_bg, TRUE);
break;
case PAINT_SELECTION_TYPE:
gtk_widget_set_sensitive (select_page_widget, TRUE);
gtk_widget_set_sensitive (brush_page_widget, FALSE);
gtk_widget_set_sensitive (page_menu_layers, FALSE);
gtk_widget_set_sensitive (page_menu_bg, FALSE);
break;
case PAINT_SELECTION_FILL_TYPE:
gtk_widget_set_sensitive (select_page_widget, TRUE);
gtk_widget_set_sensitive (brush_page_widget, FALSE);
gtk_widget_set_sensitive (page_menu_layers, TRUE);
if (selvals.onlayers == ORIGINAL_LAYER)
gtk_widget_set_sensitive (page_menu_bg, FALSE);
else
gtk_widget_set_sensitive (page_menu_bg, TRUE);
break;
default:
break;
}
}
}
static GtkWidget *
paint_page (void)
{
GtkWidget *table;
GtkWidget *vbox;
GtkWidget *vbox2;
GtkWidget *hbox;
GtkWidget *toggle;
GtkWidget *page_menu_type;
GtkWidget *scale_scale;
GtkObject *scale_scale_data;
GtkWidget *item1, *item2, *item3;
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 4);
table = gtk_table_new (5, 2, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
page_menu_layers =
gimp_option_menu_new2 (FALSE, G_CALLBACK (paint_menu_callback),
GINT_TO_POINTER (PAINT_LAYERS_MENU), 0,
_("Original"), GINT_TO_POINTER (ORIGINAL_LAYER), NULL,
_("New"), GINT_TO_POINTER (SINGLE_LAYER), NULL,
_("Multiple"), GINT_TO_POINTER (MULTI_LAYER), NULL,
NULL);
gimp_help_set_help_data (page_menu_layers,
_("Draw all objects on one layer (original or new) "
"or one object per layer"), NULL);
if (gimp_drawable_is_channel (gfig_drawable))
gtk_widget_set_sensitive (page_menu_layers, FALSE);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("Draw on:"), 1.0, 0.5,
page_menu_layers, 1, TRUE);
page_menu_type =
gimp_option_menu_new2 (FALSE, G_CALLBACK (paint_menu_callback),
GINT_TO_POINTER (PAINT_TYPE_MENU), 0,
_("Brush"),
GINT_TO_POINTER (PAINT_BRUSH_TYPE), &item1,
_("Selection"),
GINT_TO_POINTER (PAINT_SELECTION_TYPE), &item2,
_("Selection+Fill"),
GINT_TO_POINTER (PAINT_SELECTION_FILL_TYPE), &item3,
NULL);
g_signal_connect (item1, "activate",
G_CALLBACK (gfig_brush_pane_activate),
GINT_TO_POINTER (TRUE));
g_signal_connect (item1, "activate",
G_CALLBACK (gfig_select_pane_activate),
GINT_TO_POINTER (FALSE));
g_signal_connect (item2, "activate",
G_CALLBACK (gfig_brush_pane_activate),
GINT_TO_POINTER (FALSE));
g_signal_connect (item2, "activate",
G_CALLBACK (gfig_select_pane_activate),
GINT_TO_POINTER (TRUE));
g_signal_connect (item3, "activate",
G_CALLBACK (gfig_brush_pane_activate),
GINT_TO_POINTER (FALSE));
g_signal_connect (item3, "activate",
G_CALLBACK (gfig_select_pane_activate),
GINT_TO_POINTER (TRUE));
gimp_help_set_help_data (page_menu_type,
_("Draw type. Either a brush or a selection. "
"See brush page or selection page for more options"),
NULL);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
_("Using:"), 1.0, 0.5,
page_menu_type, 1, TRUE);
page_menu_bg =
gimp_option_menu_new2 (FALSE, G_CALLBACK (paint_menu_callback),
GINT_TO_POINTER (PAINT_BGS_MENU), 0,
_("Transparent"), GINT_TO_POINTER (LAYER_TRANS_BG), NULL,
_("Background"), GINT_TO_POINTER (LAYER_BG_BG), NULL,
_("Foreground"), GINT_TO_POINTER (LAYER_FG_BG), NULL,
_("White"), GINT_TO_POINTER (LAYER_WHITE_BG), NULL,
_("Copy"), GINT_TO_POINTER (LAYER_COPY_BG), NULL,
NULL);
gimp_help_set_help_data (page_menu_bg,
_("Layer background type. Copy causes previous "
"layer to be copied before the draw is performed"),
NULL);
gtk_widget_set_sensitive (page_menu_bg, FALSE);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
_("With BG of:"), 1.0, 0.5,
page_menu_bg, 1, TRUE);
toggle = gtk_check_button_new_with_label (_("Reverse Line"));
gtk_table_attach (GTK_TABLE (table), toggle, 0, 1, 4, 5,
GTK_FILL, GTK_FILL, 0, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&selvals.reverselines);
gimp_help_set_help_data (toggle,
_("Draw lines in reverse order"), NULL);
gtk_widget_show (toggle);
vbox2 = gtk_vbox_new (FALSE, 0);
gtk_table_attach (GTK_TABLE (table), vbox2, 0, 1, 3, 4,
GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (vbox2);
toggle = gtk_check_button_new_with_label (_("Scale to Image"));
gtk_box_pack_end (GTK_BOX (vbox2), toggle, FALSE, FALSE, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
selvals.scaletoimage);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gfig_scale2img_update),
&selvals.scaletoimage);
gimp_help_set_help_data (toggle,
_("Scale drawings to images size"), NULL);
gtk_widget_show (toggle);
hbox = gtk_hbox_new (FALSE, 1);
scale_scale_data = gtk_adjustment_new (1.0, 0.1, 5.0, 0.01, 0.01, 0.0);
scale_scale = gtk_hscale_new (GTK_ADJUSTMENT (scale_scale_data));
gtk_box_pack_start (GTK_BOX (hbox), scale_scale, TRUE, TRUE, 0);
gtk_scale_set_value_pos (GTK_SCALE (scale_scale), GTK_POS_TOP);
gtk_scale_set_digits (GTK_SCALE (scale_scale), 2);
gtk_range_set_update_policy (GTK_RANGE (scale_scale), GTK_UPDATE_CONTINUOUS);
g_signal_connect (scale_scale_data, "value_changed",
G_CALLBACK (gfig_scale_update_scale),
&selvals.scaletoimagefp);
gtk_widget_show (scale_scale);
gtk_widget_show (hbox);
gtk_table_attach (GTK_TABLE (table), hbox, 1, 2, 3, 4,
GTK_FILL | GTK_EXPAND, GTK_FILL, 0, 0);
gtk_widget_set_sensitive (GTK_WIDGET (scale_scale), FALSE);
g_object_set_data (G_OBJECT (toggle), "inverse_sensitive", scale_scale);
g_object_set_data (G_OBJECT (toggle), "user_data", scale_scale_data);
toggle = gtk_check_button_new_with_label (_("Approx. Circles/Ellipses"));
gtk_table_attach (GTK_TABLE (table), toggle, 1, 2, 4, 5,
GTK_FILL, GTK_FILL, 0, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&selvals.approxcircles);
gimp_help_set_help_data (toggle,
_("Approx. circles & ellipses using lines. Allows "
"the use of brush fading with these types of "
"objects."), NULL);
gtk_widget_show (toggle);
return vbox;
}
static void
gfig_brush_invoker (const gchar *name,
gdouble opacity,
gint spacing,
GimpLayerModeEffects paint_mode,
gint width,
gint height,
const guchar *mask_data,
gboolean closing,
gpointer data)
{
BrushDesc *bdesc = (BrushDesc *) data;
g_free (bdesc->name);
bdesc->name = g_strdup (name);
bdesc->width = width;
bdesc->height = height;
bdesc->opacity = opacity;
bdesc->spacing = spacing;
bdesc->paint_mode = paint_mode;
brush_list_button_callback (bdesc);
if (closing)
bdesc->popup = NULL;
}
static void
select_brush_callback (GtkWidget *widget,
gpointer data)
{
BrushDesc *bdesc = (BrushDesc *) data;
if (bdesc->popup)
/* calling gimp_brushes_set_popup() raises the dialog */
gimp_brushes_set_popup (bdesc->popup,
bdesc->name,
bdesc->opacity,
bdesc->spacing,
bdesc->paint_mode);
else
bdesc->popup = gimp_brush_select_new (_("Gfig Brush Selection"),
bdesc->name,
100.0, /* opacity */
-1, /* spacing */
GIMP_NORMAL_MODE,
gfig_brush_invoker,
bdesc);
brush_list_button_callback (bdesc);
}
static GtkWidget *
brush_page (void)
{
GtkWidget *table;
GtkWidget *label;
GtkWidget *pw;
GtkWidget *scale;
GtkObject *fade_out_scale_data;
GtkObject *gradient_scale_data;
GtkObject *pressure_scale_data;
GtkWidget *vbox;
GtkWidget *button;
BrushDesc *bdesc = g_new0 (BrushDesc, 1); /* Initial brush settings */
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 4);
table = gtk_table_new (2, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
/* Fade option */
/* the fade-out scale From GIMP itself*/
fade_out_hbox = gtk_hbox_new (FALSE, 4);
label = gtk_label_new (_("Fade out:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 1.0);
gtk_box_pack_start (GTK_BOX (fade_out_hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
fade_out_scale_data = gtk_adjustment_new (0.0, 0.0, 3000.0, 1.0, 1.0, 0.0);
scale = gtk_hscale_new (GTK_ADJUSTMENT (fade_out_scale_data));
gtk_box_pack_start (GTK_BOX (fade_out_hbox), scale, TRUE, TRUE, 0);
gtk_scale_set_value_pos (GTK_SCALE (scale), GTK_POS_TOP);
gtk_range_set_update_policy (GTK_RANGE (scale), GTK_UPDATE_DELAYED);
g_signal_connect (fade_out_scale_data, "value_changed",
G_CALLBACK (gimp_double_adjustment_update),
&selvals.brushfade);
gtk_widget_show (scale);
gtk_table_attach (GTK_TABLE (table), fade_out_hbox, 0, 2, 1, 2,
GTK_FILL | GTK_EXPAND, GTK_FILL, 0, 0);
gtk_widget_show (fade_out_hbox);
/* Gradient drawing */
gradient_hbox = gtk_hbox_new (FALSE, 4);
label = gtk_label_new (_("Gradient:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 1.0);
gtk_box_pack_start (GTK_BOX (gradient_hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
gradient_scale_data = gtk_adjustment_new (0.0, 0.0, 3000.0, 1.0, 1.0, 0.0);
scale = gtk_hscale_new (GTK_ADJUSTMENT (gradient_scale_data));
gtk_box_pack_start (GTK_BOX (gradient_hbox), scale, TRUE, TRUE, 0);
gtk_scale_set_value_pos (GTK_SCALE (scale), GTK_POS_TOP);
gtk_range_set_update_policy (GTK_RANGE (scale), GTK_UPDATE_DELAYED);
g_signal_connect (gradient_scale_data, "value_changed",
G_CALLBACK (gimp_double_adjustment_update),
&selvals.brushgradient);
gtk_widget_show (scale);
gtk_table_attach (GTK_TABLE (table), gradient_hbox, 0, 2, 2, 3,
GTK_FILL | GTK_EXPAND, GTK_FILL, 0, 0);
gtk_widget_show (gradient_hbox);
pressure_hbox = gtk_hbox_new (FALSE, 4);
label = gtk_label_new (_("Pressure:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 1.0);
gtk_box_pack_start (GTK_BOX (pressure_hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
pressure_scale_data = gtk_adjustment_new (20.0, 0.0, 100.0, 1.0, 1.0, 0.0);
scale = gtk_hscale_new (GTK_ADJUSTMENT (pressure_scale_data));
gtk_box_pack_start (GTK_BOX (pressure_hbox), scale, TRUE, TRUE, 0);
gtk_widget_show (scale);
gtk_scale_set_value_pos (GTK_SCALE (scale), GTK_POS_TOP);
gtk_range_set_update_policy (GTK_RANGE (scale), GTK_UPDATE_DELAYED);
g_signal_connect (pressure_scale_data, "value_changed",
G_CALLBACK (gimp_double_adjustment_update),
&selvals.airbrushpressure);
gtk_table_attach (GTK_TABLE (table), pressure_hbox, 0, 2, 1, 2,
GTK_FILL | GTK_EXPAND, GTK_FILL, 0, 0);
pencil_hbox = gtk_hbox_new (FALSE, 4);
label = gtk_label_new (_("No Options..."));
gtk_box_pack_start (GTK_BOX (pencil_hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
gtk_table_attach (GTK_TABLE (table), pencil_hbox, 0, 2, 1, 2,
GTK_FILL | GTK_EXPAND, GTK_FILL, 0, 0);
/* Preview widget */
pw = gfig_brush_preview (&brush_page_pw);
gtk_table_attach (GTK_TABLE (table), pw, 0, 1, 0, 1, 0, 0, 0, 0);
g_signal_connect (pressure_scale_data, "value_changed",
G_CALLBACK (gfig_brush_update_preview),
brush_page_pw);
/* Start of new brush selection code */
brush_sel_button = button = gtk_button_new_with_label (_("Set Brush..."));
gtk_misc_set_padding (GTK_MISC (GTK_BIN (brush_sel_button)->child), 2, 0);
g_signal_connect (button, "clicked",
G_CALLBACK (select_brush_callback),
bdesc);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
NULL, 0, 0,
button, 1, TRUE);
/* Setup initial brush settings */
bdesc->name = mygimp_brush_get ();
brush_list_button_callback (bdesc);
return vbox;
}
static void
select_menu_callback (GtkWidget *widget,
gpointer data)
{
gint mtype = GPOINTER_TO_INT (data);
if (mtype == SELECT_TYPE_MENU)
{
SelectionType type = (SelectionType)
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-item-data"));
selopt.type = type;
}
else if (mtype == SELECT_ARCTYPE_MENU)
{
ArcType type = (ArcType)
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-item-data"));
selopt.as_pie = type;
}
else if (mtype == SELECT_TYPE_MENU_FILL)
{
FillType type = (FillType)
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-item-data"));
selopt.fill_type = type;
}
else if (mtype == SELECT_TYPE_MENU_WHEN)
{
FillWhen type = (FillWhen)
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-item-data"));
selopt.fill_when = type;
}
}
static GtkWidget *
select_page (void)
{
GtkWidget *menu;
GtkWidget *toggle;
GtkWidget *scale;
GtkObject *scale_data;
GtkWidget *table;
GtkWidget *vbox;
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 4);
table = gtk_table_new (4, 4, FALSE);
gtk_table_set_row_spacings (GTK_TABLE (table), 4);
gtk_table_set_col_spacings (GTK_TABLE (table), 2);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
/* The secltion settings -
* 1) Type (option menu)
* 2) Anti A (toggle)
* 3) Feather (toggle)
* 4) F radius (slider)
* 5) Fill type (option menu)
* 6) Opacity (slider)
* 7) When to fill (toggle)
* 8) Arc as segment/sector
*/
/* 1 */
menu = gimp_option_menu_new2 (FALSE, G_CALLBACK (select_menu_callback),
GINT_TO_POINTER (SELECT_TYPE_MENU), 0,
_("Add"), GINT_TO_POINTER (ADD), NULL,
_("Subtract"), GINT_TO_POINTER (SUBTRACT), NULL,
_("Replace"), GINT_TO_POINTER (REPLACE), NULL,
_("Intersect"), GINT_TO_POINTER (INTERSECT), NULL,
NULL);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("Selection Type:"), 1.0, 0.5,
menu, 1, FALSE);
/* 2 */
toggle = gtk_check_button_new_with_label (_("Antialiasing"));
gtk_table_attach (GTK_TABLE (table), toggle, 2, 4, 0, 1,
GTK_FILL, GTK_FILL, 0, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&selopt.antia);
gtk_widget_show (toggle);
/* 3 */
toggle = gtk_check_button_new_with_label (_("Feather"));
gtk_table_attach (GTK_TABLE (table), toggle, 2, 4, 2, 3,
GTK_FILL, GTK_FILL, 0, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&selopt.feather);
gtk_widget_show (toggle);
/* 4 */
scale_data =
gtk_adjustment_new (selopt.feather_radius, 0.0, 100.0, 1.0, 1.0, 0.0);
scale = gtk_hscale_new (GTK_ADJUSTMENT (scale_data));
gtk_scale_set_value_pos (GTK_SCALE (scale), GTK_POS_TOP);
gtk_range_set_update_policy (GTK_RANGE (scale), GTK_UPDATE_DELAYED);
g_signal_connect (scale_data, "value_changed",
G_CALLBACK (gimp_double_adjustment_update),
&selopt.feather_radius);
gimp_table_attach_aligned (GTK_TABLE (table), 2, 3,
_("Radius:"), 1.0, 1.0,
scale, 1, FALSE);
/* 5 */
menu =
gimp_option_menu_new2 (FALSE, G_CALLBACK (select_menu_callback),
GINT_TO_POINTER (SELECT_TYPE_MENU_FILL), 0,
_("Pattern"), GINT_TO_POINTER (FILL_PATTERN), NULL,
_("Foreground"), GINT_TO_POINTER (FILL_FOREGROUND), NULL,
_("Background"), GINT_TO_POINTER (FILL_BACKGROUND), NULL,
NULL);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
_("Fill Type:"), 1.0, 0.5,
menu, 1, FALSE);
/* 6 */
scale_data =
gtk_adjustment_new (selopt.fill_opacity, 0.0, 100.0, 1.0, 1.0, 0.0);
scale = gtk_hscale_new (GTK_ADJUSTMENT (scale_data));
gtk_scale_set_value_pos (GTK_SCALE (scale), GTK_POS_TOP);
gtk_range_set_update_policy (GTK_RANGE (scale), GTK_UPDATE_DELAYED);
g_signal_connect (scale_data, "value_changed",
G_CALLBACK (gimp_double_adjustment_update),
&selopt.fill_opacity);
gimp_table_attach_aligned (GTK_TABLE (table), 2, 1,
_("Fill Opacity:"), 1.0, 1.0,
scale, 1, FALSE);
/* 7 */
menu =
gimp_option_menu_new2 (FALSE, G_CALLBACK (select_menu_callback),
GINT_TO_POINTER (SELECT_TYPE_MENU_WHEN), 0,
_("Each Selection"), GINT_TO_POINTER (FILL_EACH), NULL,
_("All Selections"), GINT_TO_POINTER (FILL_AFTER), NULL,
NULL);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
_("Fill after:"), 1.0, 0.5,
menu, 1, FALSE);
/* 8 */
menu = gimp_option_menu_new2 (FALSE, G_CALLBACK (select_menu_callback),
GINT_TO_POINTER (SELECT_ARCTYPE_MENU), 0,
_("Segment"), GINT_TO_POINTER (ARC_SEGMENT), NULL,
_("Sector"), GINT_TO_POINTER (ARC_SECTOR), NULL,
NULL);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 3,
_("Arc as:"), 1.0, 0.5,
menu, 1, FALSE);
return vbox;
}
static void
gridtype_menu_callback (GtkWidget *widget,
gpointer data)
{
gint mtype = GPOINTER_TO_INT (data);
if (mtype == GRID_TYPE_MENU)
{
#ifdef DEBUG
printf ("Gridtype set to ");
if (current_obj->opts.gridtype == RECT_GRID)
printf ("RECT_GRID\n");
else if (current_obj->opts.gridtype == POLAR_GRID)
printf ("POLAR_GRID\n");
else if (current_obj->opts.gridtype == ISO_GRID)
printf ("ISO_GRID\n");
else printf ("NONE\n");
#endif /* DEBUG */
selvals.opts.gridtype =
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-item-data"));
}
else
{
grid_gc_type =
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-item-data"));
}
draw_grid_clear ();
}
static GtkWidget *
options_page (void)
{
GtkWidget *table;
GtkWidget *menu;
GtkWidget *toggle;
GtkWidget *button;
GtkWidget *vbox;
GtkObject *size_data;
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 4);
table = gtk_table_new (6, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
/* Put buttons in */
toggle = gtk_check_button_new_with_label (_("Show Image"));
gtk_table_attach (GTK_TABLE (table), toggle, 0, 1, 0, 1,
GTK_FILL, GTK_FILL, 0, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&selvals.showimage);
g_signal_connect (toggle, "toggled",
G_CALLBACK (toggle_show_image),
NULL);
gtk_widget_show (toggle);
button = gtk_button_new_with_label (_("Reload Image"));
gtk_misc_set_padding (GTK_MISC (GTK_BIN (button)->child), 2, 0);
g_signal_connect (button, "clicked",
G_CALLBACK (reload_button_callback),
NULL);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
NULL, 0, 0,
button, 1, TRUE);
menu = gimp_option_menu_new2 (FALSE, G_CALLBACK (gridtype_menu_callback),
GINT_TO_POINTER (GRID_TYPE_MENU), 0,
_("Rectangle"), GINT_TO_POINTER (RECT_GRID), NULL,
_("Polar"), GINT_TO_POINTER (POLAR_GRID), NULL,
_("Isometric"), GINT_TO_POINTER (ISO_GRID), NULL,
NULL);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
_("Grid Type:"), 1.0, 0.5,
menu, 1, TRUE);
gfig_opt_widget.gridtypemenu = menu;
menu =
gimp_option_menu_new2 (FALSE, G_CALLBACK (gridtype_menu_callback),
GINT_TO_POINTER (GRID_RENDER_MENU), 0,
_("Normal"), GINT_TO_POINTER (GTK_STATE_NORMAL), NULL,
_("Black"), GINT_TO_POINTER (GFIG_BLACK_GC), NULL,
_("White"), GINT_TO_POINTER (GFIG_WHITE_GC), NULL,
_("Grey"), GINT_TO_POINTER (GFIG_GREY_GC), NULL,
_("Darker"), GINT_TO_POINTER (GTK_STATE_ACTIVE), NULL,
_("Lighter"), GINT_TO_POINTER (GTK_STATE_PRELIGHT), NULL,
_("Very Dark"), GINT_TO_POINTER (GTK_STATE_SELECTED), NULL,
NULL);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
_("Grid Color:"), 1.0, 0.5,
menu, 1, TRUE);
size_data = gimp_scale_entry_new (GTK_TABLE (table), 0, 3,
_("Max Undo:"), 0, 50,
selvals.maxundo, MIN_UNDO, MAX_UNDO, 1, 2, 0,
TRUE, 0, 0,
NULL, NULL);
g_signal_connect (size_data, "value_changed",
G_CALLBACK (gimp_int_adjustment_update),
&selvals.maxundo);
toggle = gtk_check_button_new_with_label (_("Show Position"));
gtk_table_attach (GTK_TABLE (table), toggle, 0, 1, 4, 5,
GTK_FILL, GTK_FILL, 0, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&selvals.showpos);
g_signal_connect_after (toggle, "toggled",
G_CALLBACK (gfig_pos_enable),
NULL);
gtk_widget_show (toggle);
toggle = gtk_check_button_new_with_label (_("Hide Control Points"));
gtk_table_attach (GTK_TABLE (table), toggle, 1, 3, 4, 5,
GTK_FILL, GTK_FILL, 0, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&selvals.opts.showcontrol);
g_signal_connect (toggle, "toggled",
G_CALLBACK (toggle_show_image),
NULL);
gtk_widget_show (toggle);
gfig_opt_widget.showcontrol = toggle;
button = gtk_button_new_with_label (_("About"));
gtk_misc_set_padding (GTK_MISC (GTK_BIN (button)->child), 8, 0);
gtk_table_attach (GTK_TABLE (table), button, 1, 3, 5, 6,
0, 0, 0, 0);
g_signal_connect (button, "clicked",
G_CALLBACK (about_button_callback),
NULL);
gtk_widget_show (button);
return vbox;
}
static GtkWidget *
grid_frame (void)
{
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *table;
GtkWidget *toggle;
GtkObject *size_data;
frame = gtk_frame_new (_("Grid"));
vbox = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
hbox = gtk_hbox_new (FALSE, 4);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
toggle = gtk_check_button_new_with_label (_("Snap to Grid"));
gtk_box_pack_start (GTK_BOX (hbox), toggle, FALSE, FALSE, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&selvals.opts.snap2grid);
gtk_widget_show (toggle);
gfig_opt_widget.snap2grid = toggle;
toggle = gtk_check_button_new_with_label (_("Display Grid"));
gtk_box_pack_start (GTK_BOX (hbox), toggle, FALSE, FALSE, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&selvals.opts.drawgrid);
g_signal_connect (toggle, "toggled",
G_CALLBACK (draw_grid_clear),
NULL);
gtk_widget_show (toggle);
gfig_opt_widget.drawgrid = toggle;
toggle = gtk_check_button_new_with_label (_("Lock on Grid"));
gtk_box_pack_start (GTK_BOX (hbox), toggle, FALSE, FALSE, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&selvals.opts.lockongrid);
gtk_widget_show (toggle);
gfig_opt_widget.lockongrid = toggle;
table = gtk_table_new (1, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
size_data = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
_("Grid Spacing:"), 0, 50,
selvals.opts.gridspacing,
MIN_GRID, MAX_GRID, 1, 10, 0,
TRUE, 0, 0,
NULL, NULL);
g_signal_connect (size_data, "value_changed",
G_CALLBACK (gimp_int_adjustment_update),
&selvals.opts.gridspacing);
g_signal_connect (size_data, "value_changed",
G_CALLBACK (draw_grid_clear),
NULL);
gfig_opt_widget.gridspacing = size_data;
gtk_widget_show (frame);
return frame;
}
static void
clear_list_items (GtkList *list)
{
gtk_list_clear_items (list, 0, -1);
}
static void
build_list_items (GtkWidget *list)
{
GList *tmp;
GtkWidget *list_item;
GtkWidget *list_pix;
GFigObj *g;
for (tmp = gfig_list; tmp; tmp = g_list_next (tmp))
{
g = tmp->data;
if (g->obj_status & GFIG_READONLY)
list_pix = gimp_pixmap_new (mini_cross_xpm);
else
list_pix = gimp_pixmap_new (blank_xpm);
list_item =
gfig_list_item_new_with_label_and_pixmap (g, g->draw_name, list_pix);
g_object_set_data (G_OBJECT (list_item), "user_data", g);
gtk_list_append_items (GTK_LIST (list), g_list_append (NULL, list_item));
g_signal_connect (list_item, "button_press_event",
G_CALLBACK (list_button_press),
g);
gtk_widget_show (list_item);
}
}
static GtkWidget *
add_objects_list (void)
{
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *scrolled_win;
GtkWidget *list;
GtkWidget *button;
frame = gtk_frame_new (_("Object"));
gtk_widget_show (frame);
hbox = gtk_hbox_new (FALSE, 2);
gtk_container_add (GTK_CONTAINER (frame), hbox);
gtk_widget_show (hbox);
gfig_gtk_list = list = gtk_list_new ();
gtk_list_set_selection_mode (GTK_LIST (list), GTK_SELECTION_BROWSE);
gtk_box_pack_start (GTK_BOX (hbox), small_preview (), FALSE, FALSE, 0);
object_list = scrolled_win = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (scrolled_win),
list);
gtk_box_pack_start (GTK_BOX (hbox), scrolled_win, TRUE, TRUE, 0);
gtk_widget_show (scrolled_win);
gtk_widget_show (list);
/* Load saved objects */
gfig_list_load_all (gfig_path);
/* Put list in */
build_list_items (list);
/* Put buttons in */
vbox = gtk_vbutton_box_new ();
gtk_box_pack_start (GTK_BOX (hbox), vbox, FALSE, FALSE, 0);
gtk_widget_show (vbox);
button = gtk_button_new_from_stock (GTK_STOCK_NEW);
g_signal_connect (button, "clicked",
G_CALLBACK (new_button_callback),
NULL);
gimp_help_set_help_data (button, _("Create a new Gfig object collection "
"for editing"), NULL);
gtk_container_add (GTK_CONTAINER (vbox), button);
gtk_widget_show (button);
button = gtk_button_new_from_stock (GTK_STOCK_OPEN);
g_signal_connect (button, "clicked",
G_CALLBACK (load_button_callback),
list);
gimp_help_set_help_data (button,
_("Load a single Gfig object collection"), NULL);
gtk_container_add (GTK_CONTAINER (vbox), button);
gtk_widget_show (button);
button = gtk_button_new_from_stock (GIMP_STOCK_EDIT);
g_signal_connect (button, "clicked",
G_CALLBACK (edit_button_callback),
list);
gimp_help_set_help_data (button, _("Edit Gfig object collection"), NULL);
gtk_container_add (GTK_CONTAINER (vbox), button);
gtk_widget_show (button);
button = gtk_button_new_with_mnemonic (_("_Merge"));
g_signal_connect (button, "clicked",
G_CALLBACK (merge_button_callback),
list);
gimp_help_set_help_data (button, _("Merge Gfig Object collection into the "
"current edit session"), NULL);
gtk_container_add (GTK_CONTAINER (vbox), button);
gtk_widget_show (button);
button = gtk_button_new_from_stock (GTK_STOCK_DELETE);
g_signal_connect (button, "clicked",
G_CALLBACK (gfig_delete_gfig_callback),
list);
gimp_help_set_help_data (button, _("Delete currently selected Gfig Object "
"collection"), NULL);
gtk_container_add (GTK_CONTAINER (vbox), button);
gtk_widget_show (button);
button = gtk_button_new_from_stock (GTK_STOCK_REFRESH);
g_signal_connect (button, "clicked",
G_CALLBACK (rescan_button_callback),
NULL);
gimp_help_set_help_data (button,
_("Select folder and rescan Gfig object collections"),
NULL);
gtk_container_add (GTK_CONTAINER (vbox), button);
gtk_widget_show (button);
return frame;
}
static gint x_pos_val;
static gint y_pos_val;
static gint pos_tag = -1;
static void
gfig_pos_enable (GtkWidget *widget,
gpointer data)
{
gboolean enable = selvals.showpos;
gtk_widget_set_sensitive (GTK_WIDGET (pos_label), enable);
}
static void
gfig_pos_update_labels (gpointer data)
{
static gchar buf[256];
pos_tag = -1;
g_snprintf (buf, sizeof (buf), "%d, %d", x_pos_val, y_pos_val);
gtk_label_set_text (GTK_LABEL (pos_label), buf);
}
static void
gfig_pos_update (gint x,
gint y)
{
gint update;
if (x_pos_val != x || y_pos_val != y)
update = 1;
else
update = 0;
x_pos_val = x;
y_pos_val = y;
if (update && pos_tag == -1 && selvals.showpos)
{
gfig_pos_update_labels (NULL);
}
}
#if 0 /* NOT USED */
static void
gfig_obj_size_update (gint sz)
{
static gchar buf[256];
sprintf (buf, "%6d", sz);
gtk_label_set_text (GTK_LABEL (obj_size_label), buf);
}
static GtkWidget *
gfig_obj_size_label (void)
{
GtkWidget *label;
GtkWidget *hbox;
hbox = gtk_hbox_new (TRUE, 6);
/* Position labels */
label = gtk_label_new (_("Size:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
obj_size_label = gtk_label_new ("0");
gtk_misc_set_alignment (GTK_MISC (obj_size_label), 0.5, 0.5);
gtk_box_pack_start (GTK_BOX (hbox), obj_size_label, FALSE, FALSE, 0);
gtk_widget_show (obj_size_label);
gtk_widget_show (hbox);
return (hbox);
}
#endif /* NOT USED */
static GtkWidget *
gfig_pos_labels (void)
{
GtkWidget *label;
GtkWidget *hbox;
gchar buf[256];
hbox = gtk_hbox_new (FALSE, 6);
gtk_widget_show (hbox);
/* Position labels */
label = gtk_label_new (_("XY Position:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
pos_label = gtk_label_new ("");
gtk_box_pack_start (GTK_BOX (hbox), pos_label, FALSE, FALSE, 0);
gtk_widget_show (pos_label);
g_snprintf (buf, sizeof (buf), "%d, %d", 0, 0);
gtk_label_set_text (GTK_LABEL (pos_label), buf);
return hbox;
}
static GtkWidget *
make_pos_info (void)
{
GtkWidget *xframe;
GtkWidget *hbox;
GtkWidget *label;
xframe = gtk_frame_new (_("Object Details"));
hbox = gtk_hbox_new (TRUE, 6);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 2);
gtk_container_add (GTK_CONTAINER (xframe), hbox);
/* Add labels */
label = gfig_pos_labels ();
gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
gfig_pos_enable (NULL, NULL);
#if 0
label = gfig_obj_size_label ();
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
#endif /* 0 */
gtk_widget_show (hbox);
gtk_widget_show (xframe);
return xframe;
}
static GtkWidget *
make_status (void)
{
GtkWidget *xframe;
GtkWidget *table;
GtkWidget *label;
xframe = gtk_frame_new (_("Collection Details"));
gtk_frame_set_shadow_type (GTK_FRAME (xframe), GTK_SHADOW_ETCHED_IN);
table = gtk_table_new (6, 6, FALSE);
gtk_table_set_col_spacing (GTK_TABLE (table), 1, 6);
gtk_container_set_border_width (GTK_CONTAINER (table), 2);
label = gtk_label_new (_("Draw Name:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 1, 2, 0, 1,
GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (label);
label = gtk_label_new (_("Filename:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_attach (GTK_TABLE (table), label, 1, 2, 1, 2,
GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (label);
status_label_dname = gtk_label_new (_("(none)"));
gtk_misc_set_alignment (GTK_MISC (status_label_dname), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), status_label_dname, 2, 4, 0, 1,
GTK_FILL | GTK_EXPAND, 0, 0, 0);
gtk_widget_show (status_label_dname);
status_label_fname = gtk_label_new (_("(none)"));
gtk_misc_set_alignment (GTK_MISC (status_label_fname), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), status_label_fname, 2, 4, 1, 2,
GTK_FILL | GTK_EXPAND, 0, 0, 0);
gtk_widget_show (status_label_fname);
gtk_container_add (GTK_CONTAINER (xframe), table);
gtk_widget_show (table);
gtk_widget_show (xframe);
return xframe;
}
static GtkWidget *
make_preview (void)
{
GtkWidget *xframe;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *table;
GtkWidget *ruler;
gfig_preview = gtk_preview_new (GTK_PREVIEW_COLOR);
gtk_widget_set_events (GTK_WIDGET (gfig_preview), PREVIEW_MASK);
g_signal_connect (gfig_preview , "realize",
G_CALLBACK (gfig_preview_realize),
NULL);
g_signal_connect (gfig_preview , "event",
G_CALLBACK (gfig_preview_events),
NULL);
g_signal_connect_after (gfig_preview , "expose_event",
G_CALLBACK (gfig_preview_expose),
NULL);
gtk_preview_size (GTK_PREVIEW (gfig_preview), preview_width, preview_height);
xframe = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (xframe), GTK_SHADOW_IN);
table = gtk_table_new (3, 3, FALSE);
gtk_table_attach (GTK_TABLE (table), gfig_preview, 1, 2, 1, 2,
GTK_FILL , GTK_FILL , 0, 0);
gtk_container_add (GTK_CONTAINER (xframe), table);
ruler = gtk_hruler_new ();
gtk_ruler_set_range (GTK_RULER (ruler), 0, preview_width, 0, PREVIEW_SIZE);
g_signal_connect_swapped (gfig_preview, "motion_notify_event",
G_CALLBACK (GTK_WIDGET_CLASS (G_OBJECT_GET_CLASS (ruler))->motion_notify_event),
ruler);
gtk_table_attach (GTK_TABLE (table), ruler, 1, 2, 0, 1,
GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (ruler);
ruler = gtk_vruler_new ();
gtk_ruler_set_range (GTK_RULER (ruler), 0, preview_height, 0, PREVIEW_SIZE);
g_signal_connect_swapped (gfig_preview, "motion_notify_event",
G_CALLBACK (GTK_WIDGET_CLASS (G_OBJECT_GET_CLASS (ruler))->motion_notify_event),
ruler);
gtk_table_attach (GTK_TABLE (table), ruler, 0, 1, 1, 2,
GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (ruler);
gtk_widget_show (xframe);
gtk_widget_show (table);
vbox = gtk_vbox_new (FALSE, 0);
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (hbox), xframe, FALSE, FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
xframe = make_pos_info ();
gtk_box_pack_start (GTK_BOX (vbox), xframe, TRUE, TRUE, 0);
xframe = make_status ();
gtk_box_pack_start (GTK_BOX (vbox), xframe, TRUE, TRUE, 0);
gtk_widget_show (vbox);
gtk_widget_show (hbox);
return vbox;
}
static void
gfig_grid_colours (GtkWidget *widget,
GdkColormap *cmap)
{
GdkGCValues values;
GdkColor new_col1;
GdkColor new_col2;
guchar stipple[8] =
{
0xAA, /* ####---- */
0x55, /* ###----# */
0xAA, /* ##----## */
0x55, /* #----### */
0xAA, /* ----#### */
0x55, /* ---####- */
0xAA, /* --####-- */
0x55, /* -####--- */
};
gdk_color_parse ("gray50", &new_col1);
gdk_colormap_alloc_color (xxx, &new_col1, FALSE, TRUE);
gdk_color_parse ("gray80", &new_col2);
gdk_colormap_alloc_color (xxx, &new_col2, FALSE, TRUE);
values.background.pixel = new_col1.pixel;
values.foreground.pixel = new_col2.pixel;
values.fill = GDK_OPAQUE_STIPPLED;
values.stipple = gdk_bitmap_create_from_data (widget->window,
(gchar *) stipple,
4, 4);
grid_hightlight_drawgc = gdk_gc_new_with_values (widget->window,
&values,
GDK_GC_FOREGROUND |
GDK_GC_BACKGROUND |
GDK_GC_FILL |
GDK_GC_STIPPLE);
}
static gint
gfig_dialog (void)
{
GtkWidget *main_hbox;
GtkWidget *vbox;
GtkWidget *notebook;
GtkWidget *page;
GtkWidget *top_level_dlg;
gimp_ui_init ("gfig", TRUE);
gfig_stock_init ();
xxx = gdk_rgb_get_colormap ();
gfig_path = gimp_plug_in_get_path ("gfig-path", "gfig");
/*cache_preview (); Get the preview image and store it also set has_alpha */
img_width = gimp_drawable_width (gfig_select_drawable->drawable_id);
img_height = gimp_drawable_height (gfig_select_drawable->drawable_id);
/* Start buildng the dialog up */
top_level_dlg = gimp_dialog_new (_("Gfig"), "gfig",
gimp_standard_help_func, "filters/gfig.html",
GTK_WIN_POS_MOUSE,
FALSE, TRUE, FALSE,
GTK_STOCK_UNDO, gfig_undo_callback,
NULL, NULL, &undo_widget, FALSE, FALSE,
GTK_STOCK_CLEAR, gfig_clear_callback,
NULL, NULL, NULL, FALSE, FALSE,
GTK_STOCK_SAVE, save_button_callback,
NULL, NULL, &save_button, FALSE, FALSE,
GTK_STOCK_CANCEL, gtk_widget_destroy,
NULL, 1, NULL, FALSE, TRUE,
GTK_STOCK_CLOSE, gfig_ok_callback,
NULL, NULL, NULL, TRUE, FALSE,
_("Paint"), gfig_paint_callback,
NULL, NULL, NULL, FALSE, FALSE,
NULL);
g_signal_connect (top_level_dlg, "destroy",
G_CALLBACK (gtk_main_quit),
NULL);
main_hbox = gtk_hbox_new (FALSE, 4);
gtk_container_set_border_width (GTK_CONTAINER (main_hbox), 4);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (top_level_dlg)->vbox), main_hbox,
TRUE, TRUE, 0);
/* Add buttons beside the preview frame */
gtk_box_pack_start (GTK_BOX (main_hbox),
draw_buttons (top_level_dlg), FALSE, FALSE, 0);
/* Preview itself */
gtk_box_pack_start (GTK_BOX (main_hbox), make_preview (), FALSE, FALSE, 0);
gtk_widget_show (gfig_preview);
vbox = gtk_vbox_new (FALSE, 2);
gtk_box_pack_start (GTK_BOX (main_hbox), vbox, FALSE, FALSE, 0);
gtk_widget_show (vbox);
/* listbox + entry */
gtk_box_pack_start (GTK_BOX (vbox), add_objects_list (), TRUE, TRUE, 0);
/* Grid entry */
gtk_box_pack_start (GTK_BOX (vbox), grid_frame (), FALSE, FALSE, 0);
/* The notebook */
notebook = gtk_notebook_new ();
gtk_notebook_set_tab_pos (GTK_NOTEBOOK (notebook), GTK_POS_TOP);
gtk_box_pack_start (GTK_BOX (vbox), notebook, FALSE, FALSE, 0);
gtk_widget_show (notebook);
page = paint_page ();
gtk_notebook_append_page (GTK_NOTEBOOK (notebook), page,
gtk_label_new (_("Paint")));
gtk_widget_show (page);
brush_page_widget = brush_page ();
gtk_notebook_append_page (GTK_NOTEBOOK (notebook), brush_page_widget,
gtk_label_new (_("Brush")));
gtk_widget_show (brush_page_widget);
/* Sometime maybe allow all objects to be done by selections - this
* would adjust the selection options.
*/
select_page_widget = select_page ();
gtk_notebook_append_page (GTK_NOTEBOOK (notebook), select_page_widget,
gtk_label_new (_("Select")));
gtk_widget_set_sensitive (select_page_widget, FALSE);
page = options_page ();
gtk_notebook_append_page (GTK_NOTEBOOK (notebook), page,
gtk_label_new (_("Options")));
gtk_widget_show (page);
gtk_widget_show (main_hbox);
gtk_widget_show (top_level_dlg);
dialog_update_preview ();
gfig_new_gc (); /* Need this for drawing */
gfig_update_stat_labels ();
gfig_grid_colours (gfig_preview, xxx);
/* Popup for list area */
gfig_op_menu_create (top_level_dlg);
gtk_main ();
gimp_image_delete (brush_image_ID);
brush_image_ID = -1;
return gfig_run;
}
static void
gfig_really_ok_callback (GtkWidget *widget,
gboolean doit,
gpointer data)
{
if (doit)
{
gfig_run = TRUE;
gtk_widget_destroy (GTK_WIDGET (data));
}
}
static void
gfig_ok_callback (GtkWidget *widget,
gpointer data)
{
/* Check if outstanding saves */
GList *list;
GFigObj *gfig;
gint count = 0;
for (list = gfig_list; list; list = g_list_next (list))
{
gfig = (GFigObj *) list->data;
if (gfig->obj_status & GFIG_MODIFIED)
count++;
}
if (count)
{
GtkWidget *dialog;
gchar *message;
message =
g_strdup_printf (_("%d unsaved Gfig objects.\n"
"Continue with exiting?"), count);
dialog = gimp_query_boolean_box (_("Warning"),
gimp_standard_help_func,
"filters/gfig.html",
GTK_STOCK_DIALOG_WARNING,
message,
GTK_STOCK_OK, GTK_STOCK_CANCEL,
NULL, NULL,
gfig_really_ok_callback,
data);
g_free (message);
gtk_widget_show (dialog);
}
else
{
gfig_run = TRUE;
gtk_widget_destroy (GTK_WIDGET (data));
}
}
static void
gfig_preview_realize (GtkWidget *widget)
{
GdkCursor *preview_cursor;
preview_cursor = gdk_cursor_new (GDK_CROSSHAIR);
gdk_window_set_cursor (gfig_preview->window, preview_cursor);
}
static gboolean
gfig_preview_expose (GtkWidget *widget,
GdkEvent *event)
{
draw_grid ();
draw_objects (pic_obj->obj_list, TRUE);
return FALSE;
}
static gboolean
pic_preview_expose (GtkWidget *widget,
GdkEvent *event)
{
if (pic_obj)
{
drawing_pic = TRUE;
draw_objects (pic_obj->obj_list, FALSE);
drawing_pic = FALSE;
}
return FALSE;
}
static gint
adjust_pic_coords (gint coord,
gint ratio)
{
/*return ((SMALL_PREVIEW_SZ * coord)/PREVIEW_SIZE);*/
static gint pratio = -1;
if (pratio == -1)
{
pratio = MAX (preview_width, preview_height);
}
return (SMALL_PREVIEW_SZ * coord) / pratio;
}
static gint
gfig_preview_events (GtkWidget *widget,
GdkEvent *event)
{
GdkEventButton *bevent;
GdkEventMotion *mevent;
GdkPoint point;
static gint tmp_show_single = 0;
switch (event->type)
{
case GDK_EXPOSE:
break;
case GDK_BUTTON_PRESS:
bevent = (GdkEventButton *) event;
point.x = bevent->x;
point.y = bevent->y;
g_assert (need_to_scale == 0); /* If not out of step some how */
/* Start drawing of object */
if (selvals.otype >= MOVE_OBJ)
{
if (!selvals.scaletoimage)
{
point.x = gfig_invscale_x (point.x);
point.y = gfig_invscale_y (point.y);
}
object_operation_start (&point, bevent->state & GDK_SHIFT_MASK);
/* If constraining save start pnt */
if (selvals.opts.snap2grid)
{
/* Save point to constained point ... if button 3 down */
if (bevent->button == 3)
{
find_grid_pos (&point, &point, FALSE);
}
}
}
else
{
if (selvals.opts.snap2grid)
{
if (bevent->button == 3)
{
find_grid_pos (&point, &point, FALSE);
}
else
{
find_grid_pos (&point, &point, FALSE);
}
}
object_start (&point, bevent->state & GDK_SHIFT_MASK);
}
break;
case GDK_BUTTON_RELEASE:
bevent = (GdkEventButton *) event;
point.x = bevent->x;
point.y = bevent->y;
if (selvals.opts.snap2grid)
find_grid_pos (&point, &point, bevent->button == 3);
/* Still got shift down ?*/
if (selvals.otype >= MOVE_OBJ)
{
if (!selvals.scaletoimage)
{
point.x = gfig_invscale_x (point.x);
point.y = gfig_invscale_y (point.y);
}
object_operation_end (&point, bevent->state & GDK_SHIFT_MASK);
}
else
{
if (obj_creating)
{
object_end (&point, bevent->state & GDK_SHIFT_MASK);
}
else
break;
}
/* make small preview reflect changes ?*/
list_button_update (current_obj);
break;
case GDK_MOTION_NOTIFY:
mevent = (GdkEventMotion *) event;
point.x = mevent->x;
point.y = mevent->y;
if (selvals.opts.snap2grid)
find_grid_pos (&point, &point, mevent->state & GDK_BUTTON3_MASK);
if (selvals.otype >= MOVE_OBJ)
{
/* Moving objects around */
if (!selvals.scaletoimage)
{
point.x = gfig_invscale_x (point.x);
point.y = gfig_invscale_y (point.y);
}
object_operation (&point, mevent->state & GDK_SHIFT_MASK);
gfig_pos_update (point.x, point.y);
return FALSE;
}
if (obj_creating)
{
object_update (&point);
}
gfig_pos_update (point.x, point.y);
break;
case GDK_KEY_PRESS:
if ((tmp_show_single = obj_show_single) != -1)
{
obj_show_single = -1;
draw_grid_clear ();
}
break;
case GDK_KEY_RELEASE:
if (tmp_show_single != -1)
{
obj_show_single = tmp_show_single;
draw_grid_clear ();
}
break;
default:
break;
}
return FALSE;
}
/*
* The edit gfig name attributes dialog
* Modified from Gimp source - layer edit.
*/
typedef struct _GfigListOptions
{
GtkWidget *query_box;
GtkWidget *name_entry;
GtkWidget *list_entry;
GFigObj *obj;
gboolean created;
} GfigListOptions;
static GtkWidget *
gfig_list_add (GFigObj *obj)
{
GList *list;
gint pos;
GtkWidget *list_item;
GtkWidget *list_pix;
list_pix = gimp_pixmap_new (Floppy6_xpm);
list_item =
gfig_list_item_new_with_label_and_pixmap (obj, obj->draw_name, list_pix);
g_object_set_data (G_OBJECT (list_item), "user_data", obj);
pos = gfig_list_insert (obj);
list = g_list_append (NULL, list_item);
gtk_list_insert_items (GTK_LIST (gfig_gtk_list), list, pos);
gtk_widget_show (list_item);
gtk_list_select_item (GTK_LIST (gfig_gtk_list), pos);
g_signal_connect (list_item, "button_press_event",
G_CALLBACK (list_button_press),
obj);
return list_item;
}
static void
gfig_list_ok_callback (GtkWidget *widget,
gpointer data)
{
GfigListOptions *options;
GtkWidget *list;
gint pos;
options = (GfigListOptions *) data;
list = options->list_entry;
/* Set the new layer name */
g_free (options->obj->draw_name);
options->obj->draw_name =
g_strdup (gtk_entry_get_text (GTK_ENTRY (options->name_entry)));
/* Need to reorder the list */
/* gtk_label_set_text (GTK_LABEL (options->layer_widget->label), layer->name);*/
pos = gtk_list_child_position (GTK_LIST (gfig_gtk_list), list);
gtk_list_clear_items (GTK_LIST (gfig_gtk_list), pos, pos + 1);
/* remove/Add again */
gfig_list = g_list_remove (gfig_list, options->obj);
gfig_list_add (options->obj);
options->obj->obj_status |= GFIG_MODIFIED;
gtk_widget_destroy (options->query_box);
g_free (options);
gfig_update_stat_labels ();
}
static void
gfig_list_cancel_callback (GtkWidget *widget,
gpointer data)
{
GfigListOptions *options;
options = (GfigListOptions *) data;
if (options->created)
{
/* We are creating an entry so if cancelled
* must del the list item as well
*/
gfig_do_delete_gfig_callback (widget, TRUE, gfig_gtk_list);
}
gtk_widget_destroy (options->query_box);
g_free (options);
}
static void
gfig_dialog_edit_list (GtkWidget *lwidget,
GFigObj *obj,
gboolean created)
{
GfigListOptions *options;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *label;
/* the new options structure */
options = g_new (GfigListOptions, 1);
options->list_entry = lwidget;
options->obj = obj;
options->created = created;
/* the dialog */
options->query_box =
gimp_dialog_new (_("Enter Gfig Object Name"), "gfig",
gimp_standard_help_func, "filters/gfig.html",
GTK_WIN_POS_MOUSE,
FALSE, TRUE, FALSE,
GTK_STOCK_CANCEL, gfig_list_cancel_callback,
options, NULL, NULL, FALSE, TRUE,
GTK_STOCK_OK, gfig_list_ok_callback,
options, NULL, NULL, TRUE, FALSE,
NULL);
/* the main vbox */
vbox = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 6);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (options->query_box)->vbox), vbox,
FALSE, FALSE, 0);
gtk_widget_show (vbox);
/* the name entry hbox, label and entry */
hbox = gtk_hbox_new (FALSE, 4);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new (_("Gfig Object Name:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
options->name_entry = gtk_entry_new ();
gtk_box_pack_start (GTK_BOX (hbox), options->name_entry, TRUE, TRUE, 0);
gtk_entry_set_text (GTK_ENTRY (options->name_entry), obj->draw_name);
gtk_widget_show (options->name_entry);
gtk_widget_show (options->query_box);
}
static void
gfig_rescan_ok_callback (GtkWidget *widget,
gpointer data)
{
GtkWidget *patheditor;
gtk_widget_set_sensitive (GTK_WIDGET (data), FALSE);
patheditor = GTK_WIDGET (g_object_get_data (G_OBJECT (data),
"patheditor"));
g_free (gfig_path);
gfig_path = gimp_path_editor_get_path (GIMP_PATH_EDITOR (patheditor));
if (gfig_path)
{
clear_list_items (GTK_LIST (gfig_gtk_list));
gfig_list_load_all (gfig_path);
build_list_items (gfig_gtk_list);
list_button_update (current_obj);
}
gtk_widget_destroy (GTK_WIDGET (data));
}
static void
gfig_rescan_list (void)
{
static GtkWidget *dlg = NULL;
GtkWidget *patheditor;
if (dlg)
{
gtk_window_present (GTK_WINDOW (dlg));
return;
}
/* the dialog */
dlg = gimp_dialog_new (_("Rescan for Gfig Objects"), "gfig",
gimp_standard_help_func, "filters/gfig.html",
GTK_WIN_POS_MOUSE,
FALSE, TRUE, FALSE,
GTK_STOCK_CANCEL, gtk_widget_destroy,
NULL, 1, NULL, FALSE, TRUE,
GTK_STOCK_OK, gfig_rescan_ok_callback,
NULL, NULL, NULL, TRUE, FALSE,
NULL);
g_signal_connect (dlg, "destroy",
G_CALLBACK (gtk_widget_destroyed),
&dlg);
patheditor = gimp_path_editor_new (_("Add Gfig Path"), gfig_path);
gtk_container_set_border_width (GTK_CONTAINER (patheditor), 6);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dlg)->vbox), patheditor,
TRUE, TRUE, 0);
gtk_widget_show (patheditor);
g_object_set_data (G_OBJECT (dlg), "patheditor", patheditor);
gtk_widget_show (dlg);
}
static void
list_button_update (GFigObj *obj)
{
g_return_if_fail (obj != NULL);
pic_obj = (GFigObj *) obj;
gtk_widget_queue_draw (pic_preview);
drawing_pic = TRUE;
draw_objects (pic_obj->obj_list, FALSE);
drawing_pic = FALSE;
}
static void
gfig_load_file_selection_ok (GtkWidget *widget,
GtkFileSelection *fs,
gpointer data)
{
const gchar *filename;
GFigObj *gfig;
GFigObj *current_saved;
filename = gtk_file_selection_get_filename (GTK_FILE_SELECTION (fs));
#ifdef DEBUG
printf ("Loading file '%s'\n", filename);
#endif /* DEBUG */
if (g_file_test (filename, G_FILE_TEST_IS_REGULAR))
{
/* Hack - current object MUST be NULL to prevent setup_undo ()
* from kicking in.
*/
current_saved = current_obj;
current_obj = NULL;
gfig = gfig_load (filename, filename);
current_obj = current_saved;
if (gfig)
{
/* Read only ?*/
if (access (filename, W_OK))
gfig->obj_status |= GFIG_READONLY;
gfig_list_add (gfig);
new_obj_2edit (gfig);
}
}
gtk_widget_destroy (GTK_WIDGET (fs));
}
static void
load_button_callback (GtkWidget *widget,
gpointer data)
{
static GtkWidget *window = NULL;
/* Load a single object */
window = gtk_file_selection_new (_("Load Gfig object collection"));
gtk_window_set_position (GTK_WINDOW (window), GTK_WIN_POS_MOUSE);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed),
&window);
g_signal_connect (GTK_FILE_SELECTION (window)->ok_button, "clicked",
G_CALLBACK (gfig_load_file_selection_ok),
window);
g_signal_connect_swapped (GTK_FILE_SELECTION (window)->cancel_button,
"clicked",
G_CALLBACK (gtk_widget_destroy),
window);
gtk_widget_show (window);
}
static void
paint_layer_copy (gchar *new_name)
{
gint32 old_drawable = gfig_drawable;
if ((gfig_drawable = gimp_layer_copy (gfig_drawable)) < 0)
{
g_warning (_("Error in copy layer for onlayers"));
gfig_drawable = old_drawable;
return;
}
gimp_layer_set_name (gfig_drawable, new_name);
gimp_image_add_layer (gfig_image, gfig_drawable, -1);
}
static void
paint_layer_new (gchar *new_name)
{
GimpFillType fill_type;
GimpImageType type;
gint32 layer_id;
switch (gimp_drawable_type (gfig_select_drawable->drawable_id))
{
case GIMP_GRAYA_IMAGE:
case GIMP_GRAY_IMAGE:
type = GIMP_GRAYA_IMAGE;
break;
default:
type = GIMP_RGBA_IMAGE;
break;
}
if ((layer_id = gimp_layer_new (gfig_image,
new_name,
img_width,
img_height,
type,
100.0, /* opacity */
GIMP_NORMAL_MODE)) < 0)
{
g_warning ("Error in creating layer");
return;
}
gimp_image_add_layer (gfig_image, layer_id, -1);
gfig_drawable = layer_id;
switch (selvals.onlayerbg)
{
case LAYER_TRANS_BG:
fill_type = GIMP_TRANSPARENT_FILL;
break;
case LAYER_BG_BG:
fill_type = GIMP_BACKGROUND_FILL;
break;
case LAYER_FG_BG:
fill_type = GIMP_FOREGROUND_FILL;
break;
case LAYER_WHITE_BG:
fill_type = GIMP_WHITE_FILL;
break;
default:
fill_type = GIMP_BACKGROUND_FILL;
g_warning ("Paint layer new internal error %d\n", selvals.onlayerbg);
break;
}
/* Have to clear layer out since creating transparent layer
* seems to leave rubbish in it.
*/
gimp_drawable_fill (layer_id, fill_type);
}
static void
paint_layer_fill (void)
{
gimp_bucket_fill (gfig_drawable,
selopt.fill_type, /* Fill mode */
GIMP_NORMAL_MODE,
selopt.fill_opacity, /* Fill opacity */
0.0, /* threshold - ignored */
FALSE, /* Sample merged - ignored */
0.0, /* x - ignored */
0.0); /* y - ignored */
}
static void
gfig_paint_callback (GtkWidget *widget,
gpointer data)
{
DAllObjs *objs;
gint layer_count = 0;
gchar buf[128];
gint count;
gint ccount = 0;
BrushDesc *bdesc;
objs = current_obj->obj_list;
count = gfig_obj_counts (objs);
#if 0
gtk_progress_bar_update (GTK_PROGRESS_BAR (progress_widget), (gfloat) 0.0);
#endif
/* Set the brush up */
bdesc = g_object_get_data (G_OBJECT (brush_page_pw), "brush-desc");
if (bdesc)
mygimp_brush_set (bdesc->name);
gimp_undo_push_group_start (gfig_image);
while (objs)
{
if (ccount == obj_show_single || obj_show_single == -1)
{
sprintf (buf, _("Gfig Layer %d"), layer_count++);
if (selvals.painttype != PAINT_SELECTION_TYPE)
{
switch (selvals.onlayers)
{
case SINGLE_LAYER:
if (layer_count == 1)
{
if (selvals.onlayerbg == LAYER_COPY_BG)
paint_layer_copy (buf);
else
paint_layer_new (buf);
}
break;
case MULTI_LAYER:
if (selvals.onlayerbg == LAYER_COPY_BG)
paint_layer_copy (buf);
else
paint_layer_new (buf);
break;
case ORIGINAL_LAYER:
/* Just use the given layer */
break;
default:
g_warning ("Error in onlayers val %d", selvals.onlayers);
break;
}
}
objs->obj->paintfunc (objs->obj);
/* Fill layer if required */
if (selvals.painttype == PAINT_SELECTION_FILL_TYPE
&& selopt.fill_when == FILL_EACH)
paint_layer_fill ();
}
objs = objs->next;
ccount++;
}
/* Fill layer if required */
if (selvals.painttype == PAINT_SELECTION_FILL_TYPE
&& selopt.fill_when == FILL_AFTER)
paint_layer_fill ();
gimp_undo_push_group_end (gfig_image);
gimp_displays_flush ();
}
static void
reload_button_callback (GtkWidget *widget,
gpointer data)
{
refill_cache ();
draw_grid_clear ();
}
static void
about_button_callback (GtkWidget *widget,
gpointer data)
{
GtkWidget *window;
GtkWidget *label;
GtkWidget *hbox;
GtkWidget *vbox;
GtkWidget *image;
window = gimp_dialog_new (_("About Gfig"), "gfig",
gimp_standard_help_func, "filters/gfig.html",
GTK_WIN_POS_MOUSE,
FALSE, FALSE, FALSE,
GTK_STOCK_CLOSE, gtk_widget_destroy,
NULL, 1, NULL, TRUE, TRUE,
NULL);
image = gtk_image_new_from_stock (GFIG_STOCK_LOGO, GTK_ICON_SIZE_DIALOG);
gtk_widget_show (image);
hbox = gtk_hbox_new (FALSE, 4);
gtk_widget_show (hbox);
vbox = gtk_vbox_new (FALSE, 4);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 8);
gtk_widget_show (vbox);
gtk_box_pack_start (GTK_BOX (hbox), image, TRUE, TRUE, 0);
gtk_box_pack_start (GTK_BOX (hbox), vbox, TRUE, TRUE, 0);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (window)->vbox),
hbox, TRUE, TRUE, 0);
label = gtk_label_new (_("Gfig - GIMP plug-in"));
gtk_misc_set_padding (GTK_MISC (label), 2, 2);
gtk_widget_show (label);
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
label = gtk_label_new (_("Release 1.3"));
gtk_misc_set_padding (GTK_MISC (label), 2, 2);
gtk_widget_show (label);
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
label = gtk_label_new ("Andy Thomas");
gtk_misc_set_padding (GTK_MISC (label), 2, 2);
gtk_widget_show (label);
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
label = gtk_label_new ("Email alt@picnic.demon.co.uk");
gtk_misc_set_padding (GTK_MISC (label), 2, 2);
gtk_widget_show (label);
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
label = gtk_label_new ("http://www.picnic.demon.co.uk/");
gtk_misc_set_padding (GTK_MISC (label), 2, 2);
gtk_widget_show (label);
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
label = gtk_label_new ("Isometric grid By Rob Saunders");
gtk_misc_set_padding (GTK_MISC (label), 2, 2);
gtk_widget_show (label);
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
gtk_widget_show (window);
}
static void
save_button_callback (GtkWidget *widget,
gpointer data)
{
gfig_save (); /* Save current object */
}
static void
rescan_button_callback (GtkWidget *widget,
gpointer data)
{
gfig_rescan_list ();
}
static GtkWidget *
new_gfig_obj (const gchar *name)
{
GFigObj *gfig;
GtkWidget *new_list_item;
/* Create a new entry */
gfig = gfig_new ();
if (!name)
name = _("New Gfig Object");
gfig->draw_name = g_strdup (name);
/* Leave options as before */
pic_obj = current_obj = gfig;
new_list_item = gfig_list_add (gfig);
tmp_bezier = obj_creating = tmp_line = NULL;
/* Redraw areas */
gtk_widget_queue_draw (gfig_preview);
list_button_update (gfig);
return new_list_item;
}
static void
new_button_callback (GtkWidget *widget,
gpointer data)
{
GtkWidget *new_list_item;
new_list_item = new_gfig_obj (NULL);
gfig_dialog_edit_list (new_list_item, current_obj, TRUE);
}
static GtkWidget *delete_dialog = NULL;
static void
gfig_do_delete_gfig_callback (GtkWidget *widget,
gboolean delete,
gpointer data)
{
gint pos;
GList *sellist;
GFigObj *sel_obj;
GtkWidget *list = (GtkWidget *) data;
if (!delete)
{
gtk_widget_set_sensitive (object_list, TRUE);
return;
}
#ifdef DEBUG
printf ("Delete button pressed\n");
#endif /* DEBUG */
/* Must update which object we are editing */
/* Get the list and which item is selected */
/* Only allow single selections */
sellist = GTK_LIST (list)->selection;
sel_obj = (GFigObj *) g_object_get_data (G_OBJECT (sellist->data),
"user_data");
pos = gtk_list_child_position (GTK_LIST (gfig_gtk_list), sellist->data);
#ifdef DEBUG
printf ("delete pos = %d\n", pos);
#endif /* DEBUG */
/* Delete the current item + asssociated file */
gtk_list_clear_items (GTK_LIST (gfig_gtk_list), pos, pos + 1);
/* Shadow copy for ordering info */
gfig_list = g_list_remove (gfig_list, sel_obj);
if (sel_obj == current_obj)
{
clear_undo ();
}
/* Free current obj */
gfig_free_everything (sel_obj);
/* Select previous one */
pos--;
if (pos < 0)
{
if (g_list_length (gfig_list) == 0)
{
/* Warning - we have a problem here
* since we are not really "creating an entry"
* why call gfig_new?
*/
new_button_callback (NULL, NULL);
}
pos = 0;
}
gtk_widget_set_sensitive (object_list, TRUE);
gtk_list_select_item (GTK_LIST (gfig_gtk_list), pos);
current_obj = g_list_nth (gfig_list, pos)->data;
gtk_widget_queue_draw (gfig_preview);
list_button_update (current_obj);
gfig_update_stat_labels ();
}
static void
gfig_delete_gfig_callback (GtkWidget *widget,
gpointer data)
{
gchar *str;
GtkWidget *list = (GtkWidget *) data;
GList *sellist;
GFigObj *sel_obj;
sellist = GTK_LIST (list)->selection;
sel_obj = (GFigObj *) g_object_get_data (G_OBJECT (sellist->data),
"user_data");
if (delete_dialog)
return;
str = g_strdup_printf (_("Are you sure you want to delete\n"
"\"%s\" from the list and from disk?"),
sel_obj->draw_name);
delete_dialog = gimp_query_boolean_box (_("Delete Gfig Drawing"),
gimp_standard_help_func,
"filters/gfig.html",
FALSE,
str,
GTK_STOCK_DELETE, GTK_STOCK_CANCEL,
NULL, NULL,
gfig_do_delete_gfig_callback,
data);
g_free (str);
g_signal_connect (delete_dialog, "destroy",
G_CALLBACK (gtk_widget_destroyed),
&delete_dialog);
gtk_widget_set_sensitive (GTK_WIDGET (object_list), FALSE);
gtk_widget_show (delete_dialog);
}
static void
gfig_update_stat_labels (void)
{
gchar str[45];
if (current_obj->draw_name)
sprintf (str, "%.34s", current_obj->draw_name);
else
sprintf (str,_("<NONE>"));
gtk_label_set_text (GTK_LABEL (status_label_dname), str);
if (current_obj->filename)
{
gint slen;
gchar *hm = (gchar *) g_get_home_dir ();
gchar *dfn = g_strdup (current_obj->filename);
#ifdef __EMX__
if (hm)
hm = _fnslashify (hm);
#endif
#ifndef __EMX__
if (hm != NULL && !strncmp (dfn, hm, strlen (hm)-1))
#else
if (hm != NULL && !strnicmp (dfn, hm, strlen (hm)-1))
#endif
{
strcpy (dfn, "~");
strcat (dfn, &dfn[strlen (hm)]);
}
if ((slen = strlen (dfn)) > 40)
{
strncpy (str, dfn, 19);
str[19] = '\0';
strcat (str, "...");
strncat (str, &dfn[slen - 21], 19);
str[40] ='\0';
}
else
sprintf (str, "%.40s", dfn);
g_free (dfn);
#ifdef __EMX__
g_free (hm);
#endif
}
else
sprintf (str,_("<NONE>"));
gtk_label_set_text (GTK_LABEL (status_label_fname), str);
}
static void
new_obj_2edit (GFigObj *obj)
{
GFigObj *old_current = current_obj;
/* Clear undo levels */
/* redraw the preview */
/* Set up options as define in the selected object */
clear_undo ();
/* Point at this one */
current_obj = obj;
/* Show all objects to start with */
obj_show_single = -1;
/* Change options */
update_options (old_current);
/* If have old object and NOT scaleing currently then force
* back to saved coord type.
*/
gfig_update_stat_labels ();
/* redraw with new */
gtk_widget_queue_draw (gfig_preview);
/* And preview */
list_button_update (current_obj);
if (obj->obj_status & GFIG_READONLY)
{
g_message (_("Editing read-only object - "
"you will not be able to save it"));
gtk_widget_set_sensitive (save_button, FALSE);
}
else
{
gtk_widget_set_sensitive (save_button, TRUE);
}
}
static void
edit_button_callback (GtkWidget *widget,
gpointer data)
{
GList *sellist;
GFigObj *sel_obj;
GtkWidget *list = (GtkWidget *) data;
#ifdef DEBUG
printf ("Edit button pressed\n");
#endif /* DEBUG */
/* Must update which object we are editing */
/* Get the list and which item is selected */
/* Only allow single selections */
sellist = GTK_LIST (list)->selection;
sel_obj = (GFigObj *) g_object_get_data (G_OBJECT (sellist->data),
"user_data");
if (sel_obj)
new_obj_2edit (sel_obj);
else
g_warning ("Internal error - list item has null object!");
}
static void
merge_button_callback (GtkWidget *widget,
gpointer data)
{
GList *sellist;
GFigObj *sel_obj;
DAllObjs *obj_copies;
GtkWidget *list = (GtkWidget *) data;
#ifdef DEBUG
printf ("Merge button pressed\n");
#endif /* DEBUG */
/* Must update which object we are editing */
/* Get the list and which item is selected */
/* Only allow single selections */
sellist = GTK_LIST (list)->selection;
sel_obj = (GFigObj *) g_object_get_data (G_OBJECT (sellist->data),
"user_data");
if (sel_obj && sel_obj->obj_list && sel_obj != current_obj)
{
/* Copy list tag onto current & redraw */
obj_copies = copy_all_objs (sel_obj->obj_list);
prepend_to_all_obj (current_obj, obj_copies);
/* redraw all */
gtk_widget_queue_draw (gfig_preview);
/* And preview */
list_button_update (current_obj);
}
}
static void
gfig_save_menu_callback (GtkWidget *widget,
gpointer data)
{
GFigObj * real_current = current_obj;
/* Fiddle the current object and save it */
/* What happens if we get a redraw here ? */
current_obj = gfig_obj_for_menu;
gfig_save (); /* Save current object */
current_obj = real_current;
}
static void
gfig_edit_menu_callback (GtkWidget *widget,
gpointer data)
{
new_obj_2edit (gfig_obj_for_menu);
}
static void
gfig_rename_menu_callback (GtkWidget *widget,
gpointer data)
{
create_file_selection (gfig_obj_for_menu, gfig_obj_for_menu->filename);
}
static void
gfig_copy_menu_callback (GtkWidget *widget,
gpointer data)
{
/* Create new entry with name + copy at end & copy object into it */
gchar *new_name = g_strdup_printf (_("%s copy"),
gfig_obj_for_menu->draw_name);
new_gfig_obj (new_name);
g_free (new_name);
/* Copy objs across */
current_obj->obj_list = copy_all_objs (gfig_obj_for_menu->obj_list);
current_obj->opts = gfig_obj_for_menu->opts; /* Structure copy */
/* redraw all */
gtk_widget_queue_draw (gfig_preview);
/* And preview */
list_button_update (current_obj);
}
static void
gfig_op_menu_create (GtkWidget *window)
{
GtkWidget *menu_item;
#if 0
GtkAcceleratorTable *accelerator_table;
#endif /* 0 */
gfig_op_menu = gtk_menu_new ();
#if 0
accelerator_table = gtk_accelerator_table_new ();
gtk_menu_set_accelerator_table (GTK_MENU (gfig_op_menu),
accelerator_table);
gtk_window_add_accelerator_table (GTK_WINDOW (window), accelerator_table);
#endif /* 0 */
save_menu_item = menu_item = gtk_menu_item_new_with_label (_("Save"));
gtk_menu_shell_append (GTK_MENU_SHELL (gfig_op_menu), menu_item);
gtk_widget_show (menu_item);
g_signal_connect (menu_item, "activate",
G_CALLBACK (gfig_save_menu_callback),
NULL);
#if 0
gtk_widget_install_accelerator (menu_item,
accelerator_table,
"activate", 'S', 0);
#endif /* 0 */
menu_item = gtk_menu_item_new_with_label (_("Save As..."));
gtk_menu_shell_append (GTK_MENU_SHELL (gfig_op_menu), menu_item);
gtk_widget_show (menu_item);
g_signal_connect (menu_item, "activate",
G_CALLBACK (gfig_rename_menu_callback),
NULL);
#if 0
gtk_widget_install_accelerator (menu_item,
accelerator_table,
"activate", 'A', 0);
#endif /* 0 */
menu_item = gtk_menu_item_new_with_label (_("Copy"));
gtk_menu_shell_append (GTK_MENU_SHELL (gfig_op_menu), menu_item);
gtk_widget_show (menu_item);
g_signal_connect (menu_item, "activate",
G_CALLBACK (gfig_copy_menu_callback),
NULL);
#if 0
gtk_widget_install_accelerator (menu_item,
accelerator_table,
"activate", 'C', 0);
#endif /* 0 */
menu_item = gtk_menu_item_new_with_label (_("Edit"));
gtk_menu_shell_append (GTK_MENU_SHELL (gfig_op_menu), menu_item);
gtk_widget_show (menu_item);
g_signal_connect (menu_item, "activate",
G_CALLBACK (gfig_edit_menu_callback),
NULL);
#if 0
gtk_widget_install_accelerator (menu_item,
accelerator_table,
"activate", 'E', 0);
#endif /* 0 */
}
static void
gfig_op_menu_popup (gint button,
guint32 activate_time,
GFigObj *obj)
{
gfig_obj_for_menu = obj; /* Static data again!*/
if (obj->obj_status & GFIG_READONLY)
{
gtk_widget_set_sensitive (save_menu_item, FALSE);
}
else
{
gtk_widget_set_sensitive (save_menu_item, TRUE);
}
gtk_menu_popup (GTK_MENU (gfig_op_menu),
NULL, NULL, NULL, NULL,
button, activate_time);
}
static gint
list_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer data)
{
switch (event->type)
{
case GDK_BUTTON_PRESS:
#ifdef DEBUG
printf ("Single button press\n");
#endif /* DEBUG */
if (event->button == 3)
{
#ifdef DEBUG
printf ("Popup on '%s'\n", ((GFigObj *)data)->draw_name);
#endif /* DEBUG */
gfig_op_menu_popup (event->button, event->time, (GFigObj *) data);
return FALSE;
}
list_button_update ((GFigObj *) data);
break;
case GDK_2BUTTON_PRESS:
#ifdef DEBUG
printf ("Two button press\n");
#endif /* DEBUG */
gfig_dialog_edit_list (widget, data, FALSE);
break;
default:
g_warning ("gfig: unknown event.\n");
break;
}
return FALSE;
}
static void
gfig_scale_update_scale (GtkAdjustment *adjustment,
gdouble *value)
{
gimp_double_adjustment_update (adjustment, value);
if (!selvals.scaletoimage)
{
scale_x_factor = (1 / (*value)) * org_scale_x_factor;
scale_y_factor = (1 / (*value)) * org_scale_y_factor;
gtk_widget_queue_draw (gfig_preview);
}
}
/* Use to toggle the toggles */
static void
gfig_scale2img_update (GtkWidget *widget,
gpointer data)
{
gimp_toggle_button_update (widget, data);
if (*((gint *) data))
{
GtkObject *adj;
adj = g_object_get_data (G_OBJECT (widget), "user_data");
scale_x_factor = org_scale_x_factor;
scale_y_factor = org_scale_y_factor;
gtk_adjustment_set_value (GTK_ADJUSTMENT (adj), 1.0);
gtk_widget_queue_draw (gfig_preview);
}
}
/* Given a row then srink it down a bit */
static void
do_gfig_preview (guchar *dest_row,
guchar *src_row,
gint width,
gint dh,
gint height,
gint bpp)
{
memcpy (dest_row, src_row, width*bpp);
}
static void
dialog_update_preview (void)
{
gint y;
gint check, check_0, check_1;
if (!selvals.showimage)
{
memset (preview_row, -1, preview_width*4);
for (y = 0; y < preview_height; y++)
{
gtk_preview_draw_row (GTK_PREVIEW (gfig_preview), preview_row,
0, y, preview_width);
}
return;
}
if (!pv_cache)
{
refill_cache ();
}
for (y = 0; y < preview_height; y++)
{
if ((y / GIMP_CHECK_SIZE) & 1)
{
check_0 = GIMP_CHECK_DARK * 255;
check_1 = GIMP_CHECK_LIGHT * 255;
}
else
{
check_0 = GIMP_CHECK_LIGHT * 255;
check_1 = GIMP_CHECK_DARK * 255;
}
do_gfig_preview (preview_row,
pv_cache+y*preview_width*img_bpp,
preview_width,
y,
preview_height,
img_bpp);
if (img_bpp > 3)
{
int i, j;
for (i = 0, j = 0 ; i < sizeof (preview_row); i += 4, j += 3)
{
gint alphaval;
if (((i/4) / GIMP_CHECK_SIZE) & 1)
check = check_0;
else
check = check_1;
alphaval = preview_row[i + 3];
preview_row[j] =
check + (((preview_row[i] - check)*alphaval)/255);
preview_row[j + 1] =
check + (((preview_row[i + 1] - check)*alphaval)/255);
preview_row[j + 2] =
check + (((preview_row[i + 2] - check)*alphaval)/255);
}
}
gtk_preview_draw_row (GTK_PREVIEW (gfig_preview), preview_row,
0, y, preview_width);
}
}
static void
gfig_new_gc (void)
{
GdkColor fg, bg;
/* create a new graphics context */
gfig_gc = gdk_gc_new (gfig_preview->window);
gdk_gc_set_function (gfig_gc, GDK_INVERT);
fg.pixel = 0xFFFFFFFF;
bg.pixel = 0x00000000;
gdk_gc_set_foreground (gfig_gc, &fg);
gdk_gc_set_background (gfig_gc, &bg);
gdk_gc_set_line_attributes (gfig_gc, 1,
GDK_LINE_SOLID, GDK_CAP_BUTT, GDK_JOIN_MITER);
}
static gint
get_num_radials (void)
{
gint gridsp = MAX_GRID + MIN_GRID;
/* select number of radials to draw */
/* Either have 16 32 or 48 */
/* correspond to GRID_MAX, midway and GRID_MIN */
return (gridsp - selvals.opts.gridspacing);
}
#define SQ_SIZE 8
static gint
inside_sqr (GdkPoint *cpnt,
GdkPoint *testpnt)
{
/* Return TRUE if testpnt is near cpnt */
gint16 x = cpnt->x;
gint16 y = cpnt->y;
gint16 tx = testpnt->x;
gint16 ty = testpnt->y;
#ifdef DEBUG
printf ("Testing if (%x,%x) is near (%x,%x)\n", tx, ty, x, y);
#endif /* DEBUG */
return (abs (x - tx) <= SQ_SIZE && abs (y - ty) < SQ_SIZE);
}
/* find_grid_pos - Given an x, y point return the grid position of it */
/* return the new position in the passed point */
static void
find_grid_pos (GdkPoint *p,
GdkPoint *gp,
guint is_butt3)
{
gint16 x = p->x;
gint16 y = p->y;
static GdkPoint cons_pnt;
static gdouble cons_radius;
static gdouble cons_ang;
static gboolean cons_center;
if (selvals.opts.gridtype == RECT_GRID)
{
if (p->x % selvals.opts.gridspacing > selvals.opts.gridspacing/2)
x += selvals.opts.gridspacing;
if (p->y % selvals.opts.gridspacing > selvals.opts.gridspacing/2)
y += selvals.opts.gridspacing;
gp->x = (x/selvals.opts.gridspacing)*selvals.opts.gridspacing;
gp->y = (y/selvals.opts.gridspacing)*selvals.opts.gridspacing;
if (is_butt3)
{
if (abs (gp->x - cons_pnt.x) < abs (gp->y - cons_pnt.y))
gp->x = cons_pnt.x;
else
gp->y = cons_pnt.y;
}
else
{
/* Store the point since might be used later */
cons_pnt = *gp; /* Structure copy */
}
}
else if (selvals.opts.gridtype == POLAR_GRID)
{
gdouble ang_grid;
gdouble ang_radius;
gdouble real_radius;
gdouble real_angle;
gdouble rounded_angle;
gint rounded_radius;
gint16 shift_x = x - preview_width/2;
gint16 shift_y = -y + preview_height/2;
real_radius = ang_radius = sqrt ((shift_y*shift_y) + (shift_x*shift_x));
/* round radius */
rounded_radius = (gint)(RINT (ang_radius/selvals.opts.gridspacing))*selvals.opts.gridspacing;
if (rounded_radius <= 0 || real_radius <=0)
{
/* DEAD CENTER */
gp->x = preview_width/2;
gp->y = preview_height/2;
if (!is_butt3) cons_center = TRUE;
#ifdef DEBUG
printf ("Dead center\n");
#endif /* DEBUG */
return;
}
ang_grid = 2*G_PI/get_num_radials ();
real_angle = atan2 (shift_y, shift_x);
if (real_angle < 0)
real_angle += 2*G_PI;
rounded_angle = (RINT ((real_angle/ang_grid)))*ang_grid;
#ifdef DEBUG
printf ("real_ang = %f ang_gid = %f rounded_angle = %f rounded radius = %d\n",
real_angle, ang_grid, rounded_angle, rounded_radius);
printf ("preview_width = %d preview_height = %d\n", preview_width, preview_height);
#endif /* DEBUG */
gp->x = (gint)RINT ((rounded_radius*cos (rounded_angle))) + preview_width/2;
gp->y = -(gint)RINT ((rounded_radius*sin (rounded_angle))) + preview_height/2;
if (is_butt3)
{
if (!cons_center)
{
if (fabs (rounded_angle - cons_ang) > ang_grid/2)
{
gp->x = (gint)RINT ((cons_radius*cos (rounded_angle))) + preview_width/2;
gp->y = -(gint)RINT ((cons_radius*sin (rounded_angle))) + preview_height/2;
}
else
{
gp->x = (gint)RINT ((rounded_radius*cos (cons_ang))) + preview_width/2;
gp->y = -(gint)RINT ((rounded_radius*sin (cons_ang))) + preview_height/2;
}
}
}
else
{
cons_radius = rounded_radius;
cons_ang = rounded_angle;
cons_center = FALSE;
}
}
else if (selvals.opts.gridtype == ISO_GRID)
{
/*
* This really needs a picture to show the math...
*
* Consider an isometric grid with one of the sets of lines parallel to the
* y axis (vertical alignment). Further define that the origin of a Cartesian
* grid is at a isometric vertex. For simplicity consider the first quadrant only.
*
* - Let one line segment between vertices be r
* - Define the value of r as the grid spacing
* - Assign an integer n identifier to each vertical grid line along the x axis.
* with n=0 being the y axis. n can be any integer
* - Let m to be any integer
* - Let h be the spacing between vertical grid lines measured along the x axis.
* It follows from the isometric grid that h has a value of r * COS(1/6 Pi Rad)
*
* Consider a Vertex V at the Cartesian location [Xv, Yv]
*
* It follows that vertices belong to the set...
* V[Xv, Yv] = [ [ n * h ] ,
* [ m * r + ( 0.5 * r (n % 2) ) ] ]
* for all integers n and m
*
* Who cares? Me. It's useful in solving this problem:
* Consider an arbitrary point P[Xp,Yp], find the closest vertex in the set V.
*
* Restated this problem is "find values for m and n that are drive V closest to P"
*
* A Solution method (there may be a better one?):
*
* Step 1) bound n to the two closest values for Xp
* n_lo = (int) (Xp / h)
* n_hi = n_lo + 1
*
* Step 2) Consider the two closes vertices for each n_lo and n_hi. The further of
* the vertices in each pair can readily be discarded.
* m_lo_n_lo = (int) ( (Yp / r) - 0.5 (n_lo % 2) )
* m_hi_n_lo = m_lo_n_lo + 1
*
* m_lo_n_hi = (int) ( (Yp / r) - 0.5 (n_hi % 2) )
* m_hi_n_hi = m_hi_n_hi
*
* Step 3) compute the distance from P to V1 and V2. Snap to the closer point.
*/
gint n_lo;
gint n_hi;
gint m_lo_n_lo;
gint m_hi_n_lo;
gint m_lo_n_hi;
gint m_hi_n_hi;
gint m_n_lo;
gint m_n_hi;
gdouble r;
gdouble h;
gint x1;
gint x2;
gint y1;
gint y2;
r = selvals.opts.gridspacing;
h = COS_1o6PI_RAD * r;
n_lo = (gint) x / h;
n_hi = n_lo + 1;
/* evaluate m candidates for n_lo */
m_lo_n_lo = (gint) ( (y / r) - 0.5 * (n_lo % 2) );
m_hi_n_lo = m_lo_n_lo + 1;
/* figure out which is the better candidate */
if (abs((m_lo_n_lo * r + (0.5 * r * (n_lo % 2))) - y) <
abs((m_hi_n_lo * r + (0.5 * r * (n_lo % 2))) - y)) {
m_n_lo = m_lo_n_lo;
}
else {
m_n_lo = m_hi_n_lo;
}
/* evaluate m candidates for n_hi */
m_lo_n_hi = (gint) ( (y / r) - 0.5 * (n_hi % 2) );
m_hi_n_hi = m_lo_n_hi + 1;
/* figure out which is the better candidate */
if (abs((m_lo_n_hi * r + (0.5 * r * (n_hi % 2))) - y) <
abs((m_hi_n_hi * r + (0.5 * r * (n_hi % 2))) - y)) {
m_n_hi = m_lo_n_hi;
}
else {
m_n_hi = m_hi_n_hi;
}
/* Now, which is closer to [x,y]? we can use a somewhat abbreviated form of the
* distance formula since we only care about relative values. */
x1 = (gint) (n_lo * h);
y1 = (gint) (m_n_lo * r + (0.5 * r * (n_lo % 2)));
x2 = (gint) (n_hi * h);
y2 = (gint) (m_n_hi * r + (0.5 * r * (n_hi % 2)));
if (((x - x1) * (x - x1) + (y - y1) * (y - y1)) <
((x - x2) * (x - x2) + (y - y2) * (y - y2))) {
gp->x = x1;
gp->y = y1;
}
else {
gp->x = x2;
gp->y = y2;
}
}
}
/* Given a point x, y draw a circle */
static void
draw_circle (GdkPoint *p)
{
if (!selvals.opts.showcontrol || drawing_pic)
return;
gdk_draw_arc (gfig_preview->window,
gfig_gc,
0,
p->x - SQ_SIZE/2,
p->y - SQ_SIZE/2,
SQ_SIZE,
SQ_SIZE,
0,
360*64);
}
/* Given a point x, y draw a square around it */
static void
draw_sqr (GdkPoint *p)
{
if (!selvals.opts.showcontrol || drawing_pic)
return;
gdk_draw_rectangle (gfig_preview->window,
gfig_gc,
0,
gfig_scale_x (p->x) - SQ_SIZE/2,
gfig_scale_y (p->y) - SQ_SIZE/2,
SQ_SIZE,
SQ_SIZE);
}
/* Draw the grid on the screen
*/
static void
draw_grid_clear ()
{
/* wipe slate and start again */
dialog_update_preview ();
gtk_widget_queue_draw (gfig_preview);
}
static void
toggle_show_image (void)
{
/* wipe slate and start again */
draw_grid_clear ();
}
static void
toggle_obj_type (GtkWidget *widget,
gpointer data)
{
GdkCursorType ctype = GDK_LAST_CURSOR;
static GdkCursor* p_cursors[DEL_OBJ + 1];
if (selvals.otype != (DobjType) GPOINTER_TO_INT (data))
{
/* Mem leak */
obj_creating = NULL;
tmp_line = NULL;
tmp_bezier = NULL;
if ((DobjType)data < MOVE_OBJ)
{
obj_show_single = -1; /* Cancel select preview */
}
/* Update draw areas */
gtk_widget_queue_draw (gfig_preview);
/* And preview */
list_button_update (current_obj);
}
selvals.otype = (DobjType) GPOINTER_TO_INT (data);
switch (selvals.otype)
{
case LINE:
case CIRCLE:
case ELLIPSE:
case ARC:
case POLY:
case STAR:
case SPIRAL:
case BEZIER:
default:
ctype = GDK_CROSSHAIR;
break;
case MOVE_OBJ:
case MOVE_POINT:
case COPY_OBJ:
case MOVE_COPY_OBJ:
ctype = GDK_DIAMOND_CROSS;
break;
case DEL_OBJ:
ctype = GDK_PIRATE;
break;
}
if (!p_cursors[selvals.otype])
p_cursors[selvals.otype] = gdk_cursor_new (ctype);
gdk_window_set_cursor (gfig_preview->window, p_cursors[selvals.otype]);
}
static void
draw_grid_polar (GdkGC *drawgc)
{
gint step;
gint loop;
gint radius;
gint max_rad;
gdouble ang_grid;
gdouble ang_loop;
gdouble ang_radius;
/* Pick center and draw concentric circles */
gint grid_x_center = preview_width/2;
gint grid_y_center = preview_height/2;
step = selvals.opts.gridspacing;
max_rad = sqrt (preview_width * preview_width +
preview_height * preview_height) / 2;
for (loop = 0; loop < max_rad; loop += step)
{
radius = loop;
gdk_draw_arc (gfig_preview->window,
drawgc,
0,
grid_x_center - radius,
grid_y_center - radius,
radius*2,
radius*2,
0,
360 * 64);
}
/* Lines */
ang_grid = 2 * G_PI / get_num_radials ();
ang_radius = sqrt ((preview_width * preview_width) +
(preview_height * preview_height)) / 2;
for (loop = 0; loop <= get_num_radials (); loop++)
{
gint lx, ly;
ang_loop = loop * ang_grid;
lx = RINT (ang_radius * cos (ang_loop));
ly = RINT (ang_radius * sin (ang_loop));
gdk_draw_line (gfig_preview->window,
drawgc,
lx + (preview_width) / 2,
- ly + (preview_height) / 2,
(preview_width) / 2,
(preview_height) / 2);
}
}
static void
draw_grid_sq (GdkGC *drawgc)
{
gint step;
gint loop;
/* Draw the horizontal lines */
step = selvals.opts.gridspacing;
for (loop = 0 ; loop < preview_height ; loop += step)
{
gdk_draw_line (gfig_preview->window,
drawgc,
0,
loop,
preview_width,
loop);
}
/* Draw the vertical lines */
for (loop = 0 ; loop < preview_width ; loop += step)
{
gdk_draw_line (gfig_preview->window,
drawgc,
loop,
0,
loop,
preview_height);
}
}
static void
draw_grid_iso (GdkGC *drawgc)
{
/* vstep is an int since it's defined from grid size */
gint vstep;
gdouble loop;
gdouble hstep;
gdouble diagonal_start;
gdouble diagonal_end;
gdouble diagonal_width;
gdouble diagonal_height;
vstep = selvals.opts.gridspacing;
hstep = selvals.opts.gridspacing * COS_1o6PI_RAD;
/* Draw the vertical lines - These are easy */
for (loop = 0 ; loop < preview_width ; loop += hstep){
gdk_draw_line (gfig_preview->window,
drawgc,
(gint)loop,
(gint)0,
(gint)loop,
(gint)preview_height);
}
/* draw diag lines at a Theta of +/- 1/6 Pi Rad */
diagonal_start = -(((int)preview_width * TAN_1o6PI_RAD) - (((int)(preview_width * TAN_1o6PI_RAD)) % vstep));
diagonal_end = preview_height + (preview_width * TAN_1o6PI_RAD);
diagonal_end -= ((int)diagonal_end) % vstep;
diagonal_width = preview_width;
diagonal_height = preview_width * TAN_1o6PI_RAD;
/* Draw diag lines */
for (loop = diagonal_start ; loop < diagonal_end ; loop += vstep)
{
gdk_draw_line (gfig_preview->window,
drawgc,
(gint)0,
(gint)loop,
(gint)diagonal_width,
(gint)loop + diagonal_height);
gdk_draw_line (gfig_preview->window,
drawgc,
(gint)0,
(gint)loop,
(gint)diagonal_width,
(gint)loop - diagonal_height);
}
}
static GdkGC *
gfig_get_grid_gc (GtkWidget *w, gint gctype)
{
switch (gctype)
{
case GFIG_BLACK_GC:
return (w->style->black_gc);
case GFIG_WHITE_GC:
return (w->style->white_gc);
case GFIG_GREY_GC:
return (grid_hightlight_drawgc);
case GTK_STATE_NORMAL:
return (w->style->bg_gc[GTK_STATE_NORMAL]);
case GTK_STATE_ACTIVE:
return (w->style->bg_gc[GTK_STATE_ACTIVE]);
case GTK_STATE_PRELIGHT:
return (w->style->bg_gc[GTK_STATE_PRELIGHT]);
case GTK_STATE_SELECTED:
return (w->style->bg_gc[GTK_STATE_SELECTED]);
case GTK_STATE_INSENSITIVE:
return (w->style->bg_gc[GTK_STATE_INSENSITIVE]);
default:
g_warning ("Unknown type for grid colouring\n");
return (w->style->bg_gc[GTK_STATE_PRELIGHT]);
}
}
static void
draw_grid (void)
{
GdkGC *drawgc;
/* Get the size of the preview and calc where the lines go */
/* Draw in prelight to start with... */
/* Always start in the upper left corner for rect.
*/
if ((preview_width < selvals.opts.gridspacing &&
preview_height < selvals.opts.gridspacing) ||
drawing_pic)
{
/* Don't draw if they don't fit */
return;
}
if (selvals.opts.drawgrid)
drawgc = gfig_get_grid_gc (gfig_preview, grid_gc_type);
else
return;
if (selvals.opts.gridtype == RECT_GRID)
draw_grid_sq (drawgc);
else if (selvals.opts.gridtype == POLAR_GRID)
draw_grid_polar (drawgc);
else if (selvals.opts.gridtype == ISO_GRID)
draw_grid_iso (drawgc);
}
static void
do_gfig (void)
{
/* Not sure if requre post proc - leave stub in */
}
/* This could belong in a separate file ... but makes it easier to lump into
* one when compiling the plugin.
*/
/* Stuff for the generation/deletion of objects. */
/* Objects are easy one they are created - you just go down the object
* list calling the draw function for each object but... when they
* are been created we have to be a little more careful. When
* the first point is placed on the canvas we create the object,
* the mouse position then defines the next point that can move around.
* careful how we draw this position.
*/
static void
free_one_obj (Dobject *obj)
{
d_delete_dobjpoints (obj->points);
g_free (obj);
}
static void
free_all_objs (DAllObjs * objs)
{
/* Free all objects */
DAllObjs * next;
while (objs)
{
free_one_obj (objs->obj);
next = objs->next;
g_free (objs);
objs = next;
}
}
static gchar *
get_line (gchar *buf,
gint s,
FILE *from,
gint init)
{
gint slen;
char * ret;
if (init)
line_no = 1;
else
line_no++;
do
{
ret = fgets (buf, s, from);
} while (!ferror (from) && buf[0] == '#');
slen = strlen (buf);
/* The last newline is a pain */
if (slen > 0)
buf[slen - 1] = '\0';
if (ferror (from))
{
g_warning (_("Error reading file"));
return (0);
}
#ifdef DEBUG
printf ("Processing line '%s'\n", buf);
#endif /* DEBUG */
return (ret);
}
static void
gfig_clear_callback (GtkWidget *widget,
gpointer data)
{
/* Make sure we can get back - if we have some objects to get back to */
if (!current_obj->obj_list)
return;
setup_undo ();
/* Free all objects */
free_all_objs (current_obj->obj_list);
current_obj->obj_list = NULL;
obj_creating = NULL;
tmp_line = NULL;
tmp_bezier = NULL;
gtk_widget_queue_draw (gfig_preview);
/* And preview */
list_button_update (current_obj);
}
static void
gfig_undo_callback (GtkWidget *widget,
gpointer data)
{
if (undo_water_mark >= 0)
{
/* Free current objects an reinstate previous */
free_all_objs (current_obj->obj_list);
current_obj->obj_list = NULL;
tmp_bezier = tmp_line = obj_creating = NULL;
current_obj->obj_list = undo_table[undo_water_mark];
undo_water_mark--;
/* Update the screen */
gtk_widget_queue_draw (gfig_preview);
/* And preview */
list_button_update (current_obj);
gfig_obj_modified (current_obj, GFIG_MODIFIED);
current_obj->obj_status |= GFIG_MODIFIED;
}
if (undo_water_mark < 0)
gtk_widget_set_sensitive (widget, FALSE);
}
static void
clear_undo (void)
{
int lv;
for (lv = undo_water_mark; lv >= 0; lv--)
{
free_all_objs (undo_table[lv]);
undo_table[lv] = NULL;
}
undo_water_mark = -1;
gtk_widget_set_sensitive (undo_widget, FALSE);
}
static void
setup_undo (void)
{
/* Copy object list to undo buffer */
#if DEBUG
printf ("setup undo level [%d]\n", undo_water_mark);
#endif /*DEBUG*/
if (!current_obj)
{
/* If no current_obj must be loading -> no undo */
return;
}
if (undo_water_mark >= selvals.maxundo - 1)
{
int loop;
/* the little one in the bed said "roll over".. */
if (undo_table[0])
free_one_obj (undo_table[0]->obj);
for (loop = 0; loop < undo_water_mark; loop++)
{
undo_table[loop] = undo_table[loop + 1];
}
}
else
{
undo_water_mark++;
}
undo_table[undo_water_mark] = copy_all_objs (current_obj->obj_list);
gtk_widget_set_sensitive (undo_widget, TRUE);
gfig_obj_modified (current_obj, GFIG_MODIFIED);
current_obj->obj_status |= GFIG_MODIFIED;
}
/* Given a number of float co-ords adjust for scaling back to org size */
/* Size is number of PAIRS of points */
/* FP + int varients */
static void
scale_to_orginal_x (gdouble *list)
{
*list *= scale_x_factor;
}
static gint
gfig_scale_x (gint x)
{
if (!selvals.scaletoimage)
return (gint) (x * (1 / scale_x_factor));
else
return x;
}
static gint
gfig_invscale_x (gint x)
{
if (!selvals.scaletoimage)
return (gint) (x * (scale_x_factor));
else
return x;
}
static void
scale_to_orginal_y (gdouble *list)
{
*list *= scale_y_factor;
}
static gint
gfig_scale_y (gint y)
{
if (!selvals.scaletoimage)
return (gint) (y * (1 / scale_y_factor));
else
return y;
}
static gint
gfig_invscale_y (gint y)
{
if (!selvals.scaletoimage)
return (gint) (y*(scale_y_factor));
else
return y;
}
/* Pairs x followed by y */
static void
scale_to_original_xy (gdouble *list,
gint size)
{
gint i;
for (i = 0; i < size * 2; i += 2)
{
scale_to_orginal_x (&list[i]);
scale_to_orginal_y (&list[i + 1]);
}
}
/* Pairs x followed by y */
static void
scale_to_xy (gdouble *list,
gint size)
{
gint i;
for (i = 0; i < size * 2; i += 2)
{
list[i] *= (org_scale_x_factor / scale_x_factor);
list[i + 1] *= (org_scale_y_factor / scale_y_factor);
}
}
/* Given an list of PAIRS of doubles reverse the list */
/* Size is number of pairs to swap */
static void
reverse_pairs_list (gdouble *list,
gint size)
{
gint i;
struct cs
{
gdouble i1;
gdouble i2;
} copyit, *orglist;
orglist = (struct cs *) list;
/* Uses struct copies */
for (i = 0; i < size / 2; i++)
{
copyit = orglist[i];
orglist[i] = orglist[size - 1 - i];
orglist[size - 1 - i] = copyit;
}
}
/* Delete a list of points */
static void
d_delete_dobjpoints (DobjPoints * pnts)
{
DobjPoints * next;
DobjPoints * pnt2del = pnts;
while (pnt2del)
{
next = pnt2del->next;
g_free (pnt2del);
pnt2del = next;
}
}
static DobjPoints *
d_copy_dobjpoints (DobjPoints * pnts)
{
DobjPoints *ret = NULL;
DobjPoints *head = NULL;
DobjPoints *newpnt;
DobjPoints *pnt2copy = pnts;
while (pnt2copy)
{
newpnt = g_new0 (DobjPoints, 1);
newpnt->pnt.x = pnt2copy->pnt.x;
newpnt->pnt.y = pnt2copy->pnt.y;
if (!ret)
head = ret = newpnt;
else
{
head->next = newpnt;
head = newpnt;
}
pnt2copy = pnt2copy->next;
}
return ret;
}
static gint
scan_obj_points (DobjPoints *opnt,
GdkPoint *pnt)
{
while (opnt)
{
if (inside_sqr (&opnt->pnt, pnt))
{
opnt->found_me = TRUE;
return TRUE;
}
opnt->found_me = FALSE;
opnt = opnt->next;
}
return FALSE;
}
static Dobject *
get_nearest_objs (GFigObj *obj,
GdkPoint *pnt)
{
/* Nearest object to given point or NULL */
DAllObjs *all;
Dobject *test_obj;
gint count = 0;
if (!obj)
return NULL;
all = obj->obj_list;
while (all)
{
test_obj = all->obj;
if (count == obj_show_single || obj_show_single == -1)
if (scan_obj_points (test_obj->points, pnt))
{
return test_obj;
}
all = all->next;
count++;
}
return NULL;
}
static void
scale_obj_points (DobjPoints *opnt,
gdouble scale_x,
gdouble scale_y)
{
while (opnt)
{
opnt->pnt.x = (gint) (opnt->pnt.x * scale_x);
opnt->pnt.y = (gint) (opnt->pnt.y * scale_y);
opnt = opnt->next;
}
}
static void
remove_obj_from_list (GFigObj *obj,
Dobject *del_obj)
{
/* Nearest object to given point or NULL */
DAllObjs *all;
DAllObjs *prev_all = NULL;
g_assert (del_obj != NULL);
all = obj->obj_list;
while (all)
{
if (all->obj == del_obj)
{
/* Found the one to delete */
#ifdef DEBUG
printf ("Found the one to delete\n");
#endif /* DEBUG */
if (prev_all)
prev_all->next = all->next;
else
obj->obj_list = all->next;
/* Draw obj (which will actually undraw it! */
del_obj->drawfunc (del_obj);
free_one_obj (del_obj);
g_free (all);
if (obj_show_single != -1)
{
/* We've just deleted the only visible one */
draw_grid_clear ();
obj_show_single = -1; /* Show all again */
}
return;
}
prev_all = all;
all = all->next;
}
g_warning (_("Hey where has the object gone ?"));
}
static DobjPoints *
get_diffs (Dobject *obj,
gint16 *xdiff,
gint16 *ydiff,
GdkPoint *to_pnt)
{
DobjPoints *spnt;
g_assert (obj != NULL);
for (spnt = obj->points; spnt; spnt = spnt->next)
{
if (spnt->found_me)
{
*xdiff = spnt->pnt.x - to_pnt->x;
*ydiff = spnt->pnt.y - to_pnt->y;
return spnt;
}
}
return NULL;
}
static void
update_pnts (Dobject *obj,
gint16 xdiff,
gint16 ydiff)
{
DobjPoints *spnt;
g_assert (obj != NULL);
/* Update all pnts */
for (spnt = obj->points; spnt; spnt = spnt->next)
{
spnt->pnt.x -= xdiff;
spnt->pnt.y -= ydiff;
}
}
static void
do_move_all_obj (GdkPoint *to_pnt)
{
/* Move all objects in one go */
/* Undraw/then draw in new pos */
gint16 xdiff = move_all_pnt->x - to_pnt->x;
gint16 ydiff = move_all_pnt->y - to_pnt->y;
if (xdiff || ydiff)
{
DAllObjs *all;
for (all = current_obj->obj_list; all; all = all->next)
{
Dobject *obj = all->obj;
/* undraw ! */
draw_one_obj (obj);
update_pnts (obj, xdiff, ydiff);
/* Draw in new pos */
draw_one_obj (obj);
}
*move_all_pnt = *to_pnt;
}
}
static void
do_move_obj (Dobject *obj,
GdkPoint *to_pnt)
{
/* Move the whole line - undraw the line to start with */
/* Then draw in new pos */
gint16 xdiff = 0;
gint16 ydiff = 0;
get_diffs (obj, &xdiff, &ydiff, to_pnt);
if (xdiff || ydiff)
{
/* undraw ! */
draw_one_obj (obj);
update_pnts (obj, xdiff, ydiff);
/* Draw in new pos */
draw_one_obj (obj);
}
}
static void
do_move_obj_pnt (Dobject *obj,
GdkPoint *to_pnt)
{
/* Move the whole line - undraw the line to start with */
/* Then draw in new pos */
DobjPoints *spnt;
gint16 xdiff = 0;
gint16 ydiff = 0;
spnt = get_diffs (obj, &xdiff, &ydiff, to_pnt);
if ((!xdiff && !ydiff) || !spnt)
return;
/* undraw ! */
draw_one_obj (obj);
spnt->pnt.x = spnt->pnt.x - xdiff;
spnt->pnt.y = spnt->pnt.y - ydiff;
/* Draw in new pos */
draw_one_obj (obj);
}
/* Save a line away to the specified stream */
static void
d_save_line (Dobject *obj,
FILE *to)
{
DobjPoints * spnt;
spnt = obj->points;
if (!spnt)
return; /* End-of-line */
fprintf (to, "<LINE>\n");
while (spnt)
{
fprintf (to, "%d %d\n",
spnt->pnt.x,
spnt->pnt.y);
spnt = spnt->next;
}
fprintf (to, "</LINE>\n");
}
/* Load a line from the specified stream */
static Dobject *
d_load_line (FILE *from)
{
Dobject *new_obj = NULL;
gint xpnt;
gint ypnt;
gchar buf[MAX_LOAD_LINE];
#ifdef DEBUG
printf ("Load line called\n");
#endif /* DEBUG */
while (get_line (buf, MAX_LOAD_LINE, from, 0))
{
if (sscanf (buf, "%d %d", &xpnt, &ypnt) != 2)
{
/* Must be the end */
if (strcmp ("</LINE>", buf))
{
g_warning ("[%d] Internal load error while loading line",
line_no);
return (NULL);
}
return (new_obj);
}
if (!new_obj)
new_obj = d_new_line (xpnt, ypnt);
else
d_pnt_add_line (new_obj, xpnt, ypnt, -1);
}
return (new_obj);
}
static Dobject *
d_copy_line (Dobject *obj)
{
Dobject *nl;
if (!obj)
return NULL;
g_assert (obj->type == LINE);
nl = d_new_line (obj->points->pnt.x, obj->points->pnt.y);
nl->points->next = d_copy_dobjpoints (obj->points->next);
return nl;
}
/* Draw the given line -- */
static void
d_draw_line (Dobject *obj)
{
DobjPoints *spnt;
DobjPoints *epnt;
spnt = obj->points;
if (!spnt)
return; /* End-of-line */
epnt = spnt->next;
while (spnt && epnt)
{
#if DEBUG
printf ("Drawing line 0x%x (%x,%x) -> (%x,%x)\n", spnt,
spnt->pnt.x,
spnt->pnt.y,
epnt->pnt.x,
epnt->pnt.y);
#endif /* DEBUG */
draw_sqr (&spnt->pnt);
/* Go around all the points drawing a line from one to the next */
if (drawing_pic)
{
gdk_draw_line (pic_preview->window,
pic_preview->style->black_gc,
adjust_pic_coords (spnt->pnt.x, preview_width),
adjust_pic_coords (spnt->pnt.y, preview_height),
adjust_pic_coords (epnt->pnt.x, preview_width),
adjust_pic_coords (epnt->pnt.y, preview_height));
}
else
{
gdk_draw_line (gfig_preview->window,
gfig_gc,
gfig_scale_x (spnt->pnt.x),
gfig_scale_y (spnt->pnt.y),
gfig_scale_x (epnt->pnt.x),
gfig_scale_y (epnt->pnt.y));
}
spnt = epnt;
epnt = epnt->next;
}
draw_sqr (&spnt->pnt);
}
static void
d_paint_line (Dobject *obj)
{
DobjPoints * spnt;
gdouble *line_pnts;
gint seg_count = 0;
gint i = 0;
for (spnt = obj->points; spnt; spnt = spnt->next)
seg_count++;
if (!seg_count)
return; /* no-line */
line_pnts = g_new0 (gdouble, 2 * seg_count + 1);
/* Go around all the points drawing a line from one to the next */
for (spnt = obj->points; spnt; spnt = spnt->next)
{
line_pnts[i++] = spnt->pnt.x;
line_pnts[i++] = spnt->pnt.y;
}
/* Reverse line if approp */
if (selvals.reverselines)
reverse_pairs_list (&line_pnts[0], i/2);
/* Scale before drawing */
if (selvals.scaletoimage)
scale_to_original_xy (&line_pnts[0], i/2);
else
scale_to_xy (&line_pnts[0], i/2);
/* One go */
if (selvals.painttype == PAINT_BRUSH_TYPE)
{
gfig_paint (selvals.brshtype,
gfig_drawable,
seg_count * 2, line_pnts);
}
else
{
gimp_free_select (gfig_image,
seg_count * 2, line_pnts,
selopt.type,
selopt.antia,
selopt.feather,
selopt.feather_radius);
}
g_free (line_pnts);
}
/* Create a new line object. starting at the x, y point might add styles
* later.
*/
static Dobject *
d_new_line (gint x,
gint y)
{
Dobject *nobj;
DobjPoints *npnt;
/* Get new object and starting point */
/* Start point */
npnt = g_new0 (DobjPoints, 1);
#if DEBUG
printf ("New line start at (%x,%x)\n", x, y);
#endif /* DEBUG */
npnt->pnt.x = x;
npnt->pnt.y = y;
nobj = g_new0 (Dobject, 1);
nobj->type = LINE;
nobj->points = npnt;
nobj->drawfunc = d_draw_line;
nobj->loadfunc = d_load_line;
nobj->savefunc = d_save_line;
nobj->paintfunc = d_paint_line;
nobj->copyfunc = d_copy_line;
return nobj;
}
/* You guessed it delete the object !*/
/*
static void
d_delete_line (Dobject *obj)
{
g_assert (obj != NULL);
* First free the list of points - then the object itself *
d_delete_dobjpoints (obj->points);
g_free (obj);
}
*/
/* Add a point to a line (given x, y)
* pos = 0 = head
* pos = -1 = tail
* 0 < pos = nth position
*/
static void
d_pnt_add_line (Dobject *obj,
gint x,
gint y,
gint pos)
{
DobjPoints *npnts = g_new0 (DobjPoints, 1);
g_assert (obj != NULL);
npnts->pnt.x = x;
npnts->pnt.y = y;
if (!pos)
{
/* Add to head */
npnts->next = obj->points;
obj->points = npnts;
}
else
{
DobjPoints *pnt = obj->points;
/* Go down chain until the end if pos */
while (pos < 0 || pos-- > 0)
{
if (!(pnt->next) || !pos)
{
npnts->next = pnt->next;
pnt->next = npnts;
break;
}
else
{
pnt = pnt->next;
}
}
}
}
/* Update end point of line */
static void
d_update_line (GdkPoint *pnt)
{
DobjPoints *spnt, *epnt;
/* Get last but one segment and undraw it -
* Then draw new segment in.
* always dealing with the static object.
*/
/* Get start of segments */
spnt = obj_creating->points;
if (!spnt)
return; /* No points */
if ((epnt = spnt->next))
{
/* undraw current */
/* Draw square on point */
draw_circle (&epnt->pnt);
gdk_draw_line (gfig_preview->window,
/*gfig_preview->style->bg_gc[GTK_STATE_NORMAL],*/
gfig_gc,
spnt->pnt.x,
spnt->pnt.y,
epnt->pnt.x,
epnt->pnt.y);
g_free (epnt);
}
/* draw new */
/* Draw circle on point */
draw_circle (pnt);
epnt = g_new0 (DobjPoints, 1);
epnt->pnt.x = pnt->x;
epnt->pnt.y = pnt->y;
gdk_draw_line (gfig_preview->window,
/*gfig_preview->style->bg_gc[GTK_STATE_NORMAL],*/
gfig_gc,
spnt->pnt.x,
spnt->pnt.y,
epnt->pnt.x,
epnt->pnt.y);
spnt->next = epnt;
}
static void
d_line_start (GdkPoint *pnt,
gint shift_down)
{
if (!obj_creating || !shift_down)
{
/* Draw square on point */
/* Must delete obj_creating if we have one */
obj_creating = d_new_line (pnt->x, pnt->y);
}
else
{
/* Contniuation */
d_update_line (pnt);
}
}
static void
d_line_end (GdkPoint *pnt,
gint shift_down)
{
/* Undraw the last circle */
draw_circle (pnt);
if (shift_down)
{
if (tmp_line)
{
GdkPoint tmp_pnt = *pnt;
if (need_to_scale)
{
tmp_pnt.x = (pnt->x * scale_x_factor);
tmp_pnt.y = (pnt->y * scale_y_factor);
}
d_pnt_add_line (tmp_line, tmp_pnt.x, tmp_pnt.y, -1);
free_one_obj (obj_creating);
/* Must free obj_creating */
}
else
{
tmp_line = obj_creating;
add_to_all_obj (current_obj, obj_creating);
}
obj_creating = d_new_line (pnt->x, pnt->y);
}
else
{
if (tmp_line)
{
GdkPoint tmp_pnt = *pnt;
if (need_to_scale)
{
tmp_pnt.x = (pnt->x * scale_x_factor);
tmp_pnt.y = (pnt->y * scale_y_factor);
}
d_pnt_add_line (tmp_line, tmp_pnt.x, tmp_pnt.y, -1);
free_one_obj (obj_creating);
/* Must free obj_creating */
}
else
{
add_to_all_obj (current_obj, obj_creating);
}
obj_creating = NULL;
tmp_line = NULL;
}
/*gtk_widget_queue_draw (gfig_preview);*/
}
/* Save a circle away to the specified stream */
static void
d_save_circle (Dobject *obj,
FILE *to)
{
DobjPoints *spnt;
spnt = obj->points;
if (!spnt)
return;
fprintf (to, "<CIRCLE>\n");
while (spnt)
{
fprintf (to, "%d %d\n",
spnt->pnt.x,
spnt->pnt.y);
spnt = spnt->next;
}
fprintf (to, "</CIRCLE>\n");
}
/* Load a circle from the specified stream */
static Dobject *
d_load_circle (FILE *from)
{
Dobject *new_obj = NULL;
gint xpnt;
gint ypnt;
gchar buf[MAX_LOAD_LINE];
#ifdef DEBUG
printf ("Load circle called\n");
#endif /* DEBUG */
while (get_line (buf, MAX_LOAD_LINE, from, 0))
{
if (sscanf (buf, "%d %d", &xpnt, &ypnt) != 2)
{
/* Must be the end */
if (strcmp ("</CIRCLE>", buf))
{
g_warning ("[%d] Internal load error while loading circle",
line_no);
return NULL;
}
return new_obj;
}
if (!new_obj)
new_obj = d_new_circle (xpnt, ypnt);
else
{
DobjPoints *edge_pnt;
/* Circles only have two points */
edge_pnt = g_new0 (DobjPoints, 1);
edge_pnt->pnt.x = xpnt;
edge_pnt->pnt.y = ypnt;
new_obj->points->next = edge_pnt;
}
}
g_warning ("[%d] Not enough points for circle", line_no);
return NULL;
}
static void
d_draw_circle (Dobject * obj)
{
DobjPoints *center_pnt;
DobjPoints *edge_pnt;
gdouble radius;
center_pnt = obj->points;
if (!center_pnt)
return; /* End-of-line */
edge_pnt = center_pnt->next;
if (!edge_pnt)
{
g_warning ("Internal error - circle no edge pnt");
}
radius = sqrt (((center_pnt->pnt.x - edge_pnt->pnt.x) *
(center_pnt->pnt.x - edge_pnt->pnt.x)) +
((center_pnt->pnt.y - edge_pnt->pnt.y) *
(center_pnt->pnt.y - edge_pnt->pnt.y)));
draw_sqr (&center_pnt->pnt);
draw_sqr (&edge_pnt->pnt);
if (drawing_pic)
{
gdk_draw_arc (pic_preview->window,
pic_preview->style->black_gc,
0,
adjust_pic_coords (center_pnt->pnt.x - radius,
preview_width),
adjust_pic_coords (center_pnt->pnt.y - radius,
preview_height),
adjust_pic_coords (radius * 2,
preview_width),
adjust_pic_coords (radius * 2,
preview_height),
0,
360 * 64);
}
else
{
gdk_draw_arc (gfig_preview->window,
gfig_gc,
0,
gfig_scale_x (center_pnt->pnt.x - (gint) RINT (radius)),
gfig_scale_y (center_pnt->pnt.y - (gint) RINT (radius)),
gfig_scale_x ((gint) RINT (radius) * 2),
gfig_scale_y ((gint) RINT (radius) * 2),
0,
360 * 64);
}
}
static void
d_paint_circle (Dobject *obj)
{
DobjPoints * center_pnt;
DobjPoints * edge_pnt;
gint radius;
gdouble dpnts[4];
g_assert (obj != NULL);
if (selvals.approxcircles)
{
obj->type_data = 600;
#ifdef DEBUG
printf ("Painting circle as polygon\n");
#endif /* DEBUG */
d_paint_poly (obj);
return;
}
/* Drawing circles is hard .
* 1) select circle
* 2) stroke it
*/
center_pnt = obj->points;
if (!center_pnt)
return; /* End-of-line */
edge_pnt = center_pnt->next;
if (!edge_pnt)
{
g_error ("Internal error - circle no edge pnt");
}
radius = (gint) sqrt (((center_pnt->pnt.x - edge_pnt->pnt.x) *
(center_pnt->pnt.x - edge_pnt->pnt.x)) +
((center_pnt->pnt.y - edge_pnt->pnt.y) *
(center_pnt->pnt.y - edge_pnt->pnt.y)));
dpnts[0] = (gdouble) center_pnt->pnt.x - radius;
dpnts[1] = (gdouble) center_pnt->pnt.y - radius;
dpnts[3] = dpnts[2] = (gdouble) radius * 2;
/* Scale before drawing */
if (selvals.scaletoimage)
scale_to_original_xy (&dpnts[0], 2);
else
scale_to_xy (&dpnts[0], 2);
gimp_ellipse_select (gfig_image,
dpnts[0], dpnts[1],
dpnts[2], dpnts[3],
selopt.type,
selopt.antia,
selopt.feather,
selopt.feather_radius);
/* Is selection all we need ? */
if (selvals.painttype == PAINT_SELECTION_TYPE)
return;
gimp_edit_stroke (gfig_drawable);
gimp_selection_clear (gfig_image);
}
static Dobject *
d_copy_circle (Dobject * obj)
{
Dobject *nc;
if (!obj)
return NULL;
g_assert (obj->type == CIRCLE);
nc = d_new_circle (obj->points->pnt.x, obj->points->pnt.y);
nc->points->next = d_copy_dobjpoints (obj->points->next);
return nc;
}
static Dobject *
d_new_circle (gint x,
gint y)
{
Dobject *nobj;
DobjPoints *npnt;
/* Get new object and starting point */
/* Start point */
npnt = g_new0 (DobjPoints, 1);
npnt->pnt.x = x;
npnt->pnt.y = y;
nobj = g_new0 (Dobject, 1);
nobj->type = CIRCLE;
nobj->points = npnt;
nobj->drawfunc = d_draw_circle;
nobj->loadfunc = d_load_circle;
nobj->savefunc = d_save_circle;
nobj->paintfunc = d_paint_circle;
nobj->copyfunc = d_copy_circle;
return nobj;
}
static void
d_update_circle (GdkPoint *pnt)
{
DobjPoints *center_pnt, *edge_pnt;
gdouble radius;
/* Undraw last one then draw new one */
center_pnt = obj_creating->points;
if (!center_pnt)
return; /* No points */
if ((edge_pnt = center_pnt->next))
{
/* Undraw current */
draw_circle (&edge_pnt->pnt);
radius = sqrt (((center_pnt->pnt.x - edge_pnt->pnt.x) *
(center_pnt->pnt.x - edge_pnt->pnt.x)) +
((center_pnt->pnt.y - edge_pnt->pnt.y) *
(center_pnt->pnt.y - edge_pnt->pnt.y)));
gdk_draw_arc (gfig_preview->window,
gfig_gc,
0,
center_pnt->pnt.x - (gint) RINT (radius),
center_pnt->pnt.y - (gint) RINT (radius),
(gint) RINT (radius) * 2,
(gint) RINT (radius) * 2,
0,
360 * 64);
}
draw_circle (pnt);
edge_pnt = g_new0 (DobjPoints, 1);
edge_pnt->pnt.x = pnt->x;
edge_pnt->pnt.y = pnt->y;
radius = sqrt (((center_pnt->pnt.x - edge_pnt->pnt.x) *
(center_pnt->pnt.x - edge_pnt->pnt.x)) +
((center_pnt->pnt.y - edge_pnt->pnt.y) *
(center_pnt->pnt.y - edge_pnt->pnt.y)));
gdk_draw_arc (gfig_preview->window,
gfig_gc,
0,
center_pnt->pnt.x - (gint) RINT (radius),
center_pnt->pnt.y - (gint) RINT (radius),
(gint) RINT (radius) * 2,
(gint) RINT (radius) * 2,
0,
360 * 64);
center_pnt->next = edge_pnt;
}
static void
d_circle_start (GdkPoint *pnt,
gint shift_down)
{
obj_creating = d_new_circle (pnt->x, pnt->y);
}
static void
d_circle_end (GdkPoint *pnt,
gint shift_down)
{
/* Under contrl point */
if (!obj_creating->points->next)
{
/* No circle created */
free_one_obj (obj_creating);
}
else
{
draw_circle (pnt);
add_to_all_obj (current_obj, obj_creating);
}
obj_creating = NULL;
}
/* Save an ellipse away to the specified stream */
static void
d_save_ellipse (Dobject *obj,
FILE *to)
{
DobjPoints *spnt;
spnt = obj->points;
if (!spnt)
return;
fprintf (to, "<ELLIPSE>\n");
for (; spnt; spnt = spnt->next)
fprintf (to, "%d %d\n", spnt->pnt.x, spnt->pnt.y);
fprintf (to, "</ELLIPSE>\n");
}
/* Load a circle from the specified stream */
static Dobject *
d_load_ellipse (FILE *from)
{
Dobject *new_obj = NULL;
gint xpnt;
gint ypnt;
gchar buf[MAX_LOAD_LINE];
#ifdef DEBUG
printf ("Load ellipse called\n");
#endif /* DEBUG */
while (get_line (buf, MAX_LOAD_LINE, from, 0))
{
if (sscanf (buf, "%d %d", &xpnt, &ypnt) != 2)
{
/* Must be the end */
if (strcmp ("</ELLIPSE>", buf))
{
g_message ("[%d] Internal load error while loading ellipse",
line_no);
return NULL;
}
return new_obj;
}
if (!new_obj)
new_obj = d_new_ellipse (xpnt, ypnt);
else
{
DobjPoints *edge_pnt;
/* Circles only have two points */
edge_pnt = g_new0 (DobjPoints, 1);
edge_pnt->pnt.x = xpnt;
edge_pnt->pnt.y = ypnt;
new_obj->points->next = edge_pnt;
}
}
g_message ("[%d] Not enough points for ellipse", line_no);
return NULL;
}
static void
d_draw_ellipse (Dobject * obj)
{
DobjPoints *center_pnt;
DobjPoints *edge_pnt;
gint bound_wx;
gint bound_wy;
gint top_x;
gint top_y;
center_pnt = obj->points;
if (!center_pnt)
return; /* End-of-line */
edge_pnt = center_pnt->next;
if (!edge_pnt)
{
g_warning ("Internal error - ellipse no edge pnt");
}
draw_sqr (&center_pnt->pnt);
draw_sqr (&edge_pnt->pnt);
bound_wx = abs (center_pnt->pnt.x - edge_pnt->pnt.x) * 2;
bound_wy = abs (center_pnt->pnt.y - edge_pnt->pnt.y) * 2;
if (edge_pnt->pnt.x > center_pnt->pnt.x)
top_x = 2 * center_pnt->pnt.x - edge_pnt->pnt.x;
else
top_x = edge_pnt->pnt.x;
if (edge_pnt->pnt.y > center_pnt->pnt.y)
top_y = 2 * center_pnt->pnt.y - edge_pnt->pnt.y;
else
top_y = edge_pnt->pnt.y;
if (drawing_pic)
{
gdk_draw_arc (pic_preview->window,
pic_preview->style->black_gc,
0,
adjust_pic_coords (top_x,
preview_width),
adjust_pic_coords (top_y,
preview_height),
adjust_pic_coords (bound_wx,
preview_width),
adjust_pic_coords (bound_wy,
preview_height),
0,
360 * 64);
}
else
{
gdk_draw_arc (gfig_preview->window,
gfig_gc,
0,
gfig_scale_x (top_x),
gfig_scale_y (top_y),
gfig_scale_x (bound_wx),
gfig_scale_y (bound_wy),
0,
360 * 64);
}
}
static void
d_paint_approx_ellipse (Dobject *obj)
{
/* first point center */
/* Next point is radius */
gdouble *line_pnts;
gint seg_count = 0;
gint i = 0;
DobjPoints * center_pnt;
DobjPoints * radius_pnt;
gdouble a_axis;
gdouble b_axis;
gdouble ang_grid;
gdouble ang_loop;
gdouble radius;
gint loop;
GdkPoint first_pnt, last_pnt;
gint first = 1;
g_assert (obj != NULL);
/* count - add one to close polygon */
seg_count = 600;
center_pnt = obj->points;
if (!center_pnt || !seg_count)
return; /* no-line */
line_pnts = g_new0 (gdouble, 2 * seg_count + 1);
/* Go around all the points drawing a line from one to the next */
radius_pnt = center_pnt->next; /* this defines the vetices */
/* Have center and radius - get lines */
a_axis = ((gdouble) (radius_pnt->pnt.x - center_pnt->pnt.x));
b_axis = ((gdouble) (radius_pnt->pnt.y - center_pnt->pnt.y));
/* Lines */
ang_grid = 2 * G_PI / (gdouble) 600;
for (loop = 0; loop < 600; loop++)
{
gdouble lx, ly;
GdkPoint calc_pnt;
ang_loop = (gdouble)loop * ang_grid;
radius = (a_axis * b_axis /
(sqrt (cos (ang_loop) * cos (ang_loop) *
(b_axis * b_axis - a_axis * a_axis) + a_axis * a_axis)));
lx = radius * cos (ang_loop);
ly = radius * sin (ang_loop);
calc_pnt.x = RINT (lx + center_pnt->pnt.x);
calc_pnt.y = RINT (ly + center_pnt->pnt.y);
/* Miss out duped pnts */
if (!first)
{
if (calc_pnt.x == last_pnt.x && calc_pnt.y == last_pnt.y)
{
continue;
}
}
last_pnt.x = line_pnts[i++] = calc_pnt.x;
last_pnt.y = line_pnts[i++] = calc_pnt.y;
if (first)
{
first_pnt = calc_pnt;
first = 0;
}
}
line_pnts[i++] = first_pnt.x;
line_pnts[i++] = first_pnt.y;
/* Reverse line if approp */
if (selvals.reverselines)
reverse_pairs_list (&line_pnts[0], i / 2);
/* Scale before drawing */
if (selvals.scaletoimage)
scale_to_original_xy (&line_pnts[0], i / 2);
else
scale_to_xy (&line_pnts[0], i / 2);
/* One go */
if (selvals.painttype == PAINT_BRUSH_TYPE)
{
gfig_paint (selvals.brshtype,
gfig_drawable,
i, line_pnts);
}
else
{
gimp_free_select (gfig_image,
i, line_pnts,
selopt.type,
selopt.antia,
selopt.feather,
selopt.feather_radius);
}
g_free (line_pnts);
}
static void
d_paint_ellipse (Dobject *obj)
{
DobjPoints * center_pnt;
DobjPoints * edge_pnt;
gint bound_wx;
gint bound_wy;
gint top_x;
gint top_y;
gdouble dpnts[4];
/* Drawing ellipse is hard .
* 1) select circle
* 2) stroke it
*/
g_assert (obj != NULL);
if (selvals.approxcircles)
{
#ifdef DEBUG
printf ("Painting ellipse as polygon\n");
#endif /* DEBUG */
d_paint_approx_ellipse (obj);
return;
}
center_pnt = obj->points;
if (!center_pnt)
return; /* End-of-line */
edge_pnt = center_pnt->next;
if (!edge_pnt)
{
g_error ("Internal error - ellipse no edge pnt");
}
bound_wx = abs (center_pnt->pnt.x - edge_pnt->pnt.x)*2;
bound_wy = abs (center_pnt->pnt.y - edge_pnt->pnt.y)*2;
if (edge_pnt->pnt.x > center_pnt->pnt.x)
top_x = 2*center_pnt->pnt.x - edge_pnt->pnt.x;
else
top_x = edge_pnt->pnt.x;
if (edge_pnt->pnt.y > center_pnt->pnt.y)
top_y = 2*center_pnt->pnt.y - edge_pnt->pnt.y;
else
top_y = edge_pnt->pnt.y;
dpnts[0] = (gdouble)top_x;
dpnts[1] = (gdouble)top_y;
dpnts[2] = (gdouble)bound_wx;
dpnts[3] = (gdouble)bound_wy;
/* Scale before drawing */
if (selvals.scaletoimage)
scale_to_original_xy (&dpnts[0], 2);
else
scale_to_xy (&dpnts[0], 2);
gimp_ellipse_select (gfig_image,
dpnts[0], dpnts[1],
dpnts[2], dpnts[3],
selopt.type,
selopt.antia,
selopt.feather,
selopt.feather_radius);
/* Is selection all we need ? */
if (selvals.painttype == PAINT_SELECTION_TYPE)
return;
gimp_edit_stroke (gfig_drawable);
gimp_selection_clear (gfig_image);
}
static Dobject *
d_copy_ellipse (Dobject * obj)
{
Dobject *nc;
if (!obj)
return (NULL);
g_assert (obj->type == ELLIPSE);
nc = d_new_ellipse (obj->points->pnt.x, obj->points->pnt.y);
nc->points->next = d_copy_dobjpoints (obj->points->next);
return nc;
}
static Dobject *
d_new_ellipse (gint x, gint y)
{
Dobject *nobj;
DobjPoints *npnt;
/* Get new object and starting point */
/* Start point */
npnt = g_new0 (DobjPoints, 1);
#if DEBUG
printf ("New ellipse start at (%x,%x)\n", x, y);
#endif /* DEBUG */
npnt->pnt.x = x;
npnt->pnt.y = y;
nobj = g_new0 (Dobject, 1);
nobj->type = ELLIPSE;
nobj->points = npnt;
nobj->drawfunc = d_draw_ellipse;
nobj->loadfunc = d_load_ellipse;
nobj->savefunc = d_save_ellipse;
nobj->paintfunc = d_paint_ellipse;
nobj->copyfunc = d_copy_ellipse;
return (nobj);
}
static void
d_update_ellipse (GdkPoint *pnt)
{
DobjPoints *center_pnt, *edge_pnt;
gint bound_wx;
gint bound_wy;
gint top_x;
gint top_y;
/* Undraw last one then draw new one */
center_pnt = obj_creating->points;
if (!center_pnt)
return; /* No points */
if ((edge_pnt = center_pnt->next))
{
/* Undraw current */
bound_wx = abs (center_pnt->pnt.x - edge_pnt->pnt.x)*2;
bound_wy = abs (center_pnt->pnt.y - edge_pnt->pnt.y)*2;
if (edge_pnt->pnt.x > center_pnt->pnt.x)
top_x = 2*center_pnt->pnt.x - edge_pnt->pnt.x;
else
top_x = edge_pnt->pnt.x;
if (edge_pnt->pnt.y > center_pnt->pnt.y)
top_y = 2*center_pnt->pnt.y - edge_pnt->pnt.y;
else
top_y = edge_pnt->pnt.y;
draw_circle (&edge_pnt->pnt);
gdk_draw_arc (gfig_preview->window,
gfig_gc,
0,
top_x,
top_y,
bound_wx,
bound_wy,
0,
360*64);
}
draw_circle (pnt);
edge_pnt = g_new0 (DobjPoints, 1);
edge_pnt->pnt.x = pnt->x;
edge_pnt->pnt.y = pnt->y;
bound_wx = abs (center_pnt->pnt.x - edge_pnt->pnt.x)*2;
bound_wy = abs (center_pnt->pnt.y - edge_pnt->pnt.y)*2;
if (edge_pnt->pnt.x > center_pnt->pnt.x)
top_x = 2*center_pnt->pnt.x - edge_pnt->pnt.x;
else
top_x = edge_pnt->pnt.x;
if (edge_pnt->pnt.y > center_pnt->pnt.y)
top_y = 2* center_pnt->pnt.y - edge_pnt->pnt.y;
else
top_y = edge_pnt->pnt.y;
gdk_draw_arc (gfig_preview->window,
gfig_gc,
0,
top_x,
top_y,
bound_wx,
bound_wy,
0,
360*64);
center_pnt->next = edge_pnt;
}
static void
d_ellipse_start (GdkPoint *pnt, gint shift_down)
{
obj_creating = d_new_ellipse (pnt->x, pnt->y);
}
static void
d_ellipse_end (GdkPoint *pnt, gint shift_down)
{
/* Under contrl point */
if (!obj_creating->points->next)
{
/* No circle created */
free_one_obj (obj_creating);
}
else
{
draw_circle (pnt);
add_to_all_obj (current_obj, obj_creating);
}
obj_creating = NULL;
}
/* Normal polygon */
static void
d_save_poly (Dobject * obj, FILE *to)
{
DobjPoints * spnt;
spnt = obj->points;
if (!spnt)
return; /* End-of-line */
fprintf (to, "<POLY>\n");
while (spnt)
{
fprintf (to, "%d %d\n",
spnt->pnt.x,
spnt->pnt.y);
spnt = spnt->next;
}
fprintf (to, "<EXTRA>\n");
fprintf (to, "%d\n</EXTRA>\n", obj->type_data);
fprintf (to, "</POLY>\n");
}
/* Load a circle from the specified stream */
static Dobject *
d_load_poly (FILE *from)
{
Dobject *new_obj = NULL;
gint xpnt;
gint ypnt;
gchar buf[MAX_LOAD_LINE];
#ifdef DEBUG
printf ("Load poly called\n");
#endif /* DEBUG */
while (get_line (buf, MAX_LOAD_LINE, from, 0))
{
if (sscanf (buf, "%d %d", &xpnt, &ypnt) != 2)
{
/* Must be the end */
if (!strcmp ("<EXTRA>", buf))
{
gint nsides = 3;
/* Number of sides - data item */
if (!new_obj)
{
g_warning ("[%d] Internal load error while loading poly (extra area)",
line_no);
return (NULL);
}
get_line (buf, MAX_LOAD_LINE, from, 0);
if (sscanf (buf, "%d", &nsides) != 1)
{
g_warning ("[%d] Internal load error while loading poly (extra area scanf)",
line_no);
return (NULL);
}
new_obj->type_data = nsides;
get_line (buf, MAX_LOAD_LINE, from, 0);
if (strcmp ("</EXTRA>", buf))
{
g_warning ("[%d] Internal load error while loading poly",
line_no);
return (NULL);
}
/* Go around and read the last line */
continue;
}
else if (strcmp ("</POLY>", buf))
{
g_warning ("[%d] Internal load error while loading poly",
line_no);
return (NULL);
}
return (new_obj);
}
if (!new_obj)
new_obj = d_new_poly (xpnt, ypnt);
else
d_pnt_add_line (new_obj, xpnt, ypnt, -1);
}
return (new_obj);
}
static void
d_draw_poly (Dobject *obj)
{
DobjPoints * center_pnt;
DobjPoints * radius_pnt;
gint16 shift_x;
gint16 shift_y;
gdouble ang_grid;
gdouble ang_loop;
gdouble radius;
gdouble offset_angle;
gint loop;
GdkPoint start_pnt;
GdkPoint first_pnt;
gint do_line = 0;
center_pnt = obj->points;
if (!center_pnt)
return; /* End-of-line */
/* First point is the center */
/* Just draw a control point around it */
draw_sqr (&center_pnt->pnt);
/* Next point defines the radius */
radius_pnt = center_pnt->next; /* this defines the vertices */
if (!radius_pnt)
{
#ifdef DEBUG
g_warning ("Internal error in polygon - no vertice point \n");
#endif /* DEBUG */
return;
}
/* Other control point */
draw_sqr (&radius_pnt->pnt);
/* Have center and radius - draw polygon */
shift_x = radius_pnt->pnt.x - center_pnt->pnt.x;
shift_y = radius_pnt->pnt.y - center_pnt->pnt.y;
radius = sqrt ((shift_x*shift_x) + (shift_y*shift_y));
/* Lines */
ang_grid = 2 * G_PI / (gdouble) obj->type_data;
offset_angle = atan2 (shift_y, shift_x);
for (loop = 0 ; loop < obj->type_data ; loop++)
{
gdouble lx, ly;
GdkPoint calc_pnt;
ang_loop = (gdouble)loop * ang_grid + offset_angle;
lx = radius * cos (ang_loop);
ly = radius * sin (ang_loop);
calc_pnt.x = RINT (lx + center_pnt->pnt.x);
calc_pnt.y = RINT (ly + center_pnt->pnt.y);
if (do_line)
{
/* Miss out points that come to the same location */
if (calc_pnt.x == start_pnt.x && calc_pnt.y == start_pnt.y)
continue;
if (drawing_pic)
{
gdk_draw_line (pic_preview->window,
pic_preview->style->black_gc,
adjust_pic_coords (calc_pnt.x,
preview_width),
adjust_pic_coords (calc_pnt.y,
preview_height),
adjust_pic_coords (start_pnt.x,
preview_width),
adjust_pic_coords (start_pnt.y,
preview_height));
}
else
{
gdk_draw_line (gfig_preview->window,
gfig_gc,
gfig_scale_x (calc_pnt.x),
gfig_scale_y (calc_pnt.y),
gfig_scale_x (start_pnt.x),
gfig_scale_y (start_pnt.y));
}
}
else
{
do_line = 1;
first_pnt.x = calc_pnt.x;
first_pnt.y = calc_pnt.y;
}
start_pnt.x = calc_pnt.x;
start_pnt.y = calc_pnt.y;
}
/* Join up */
if (drawing_pic)
{
gdk_draw_line (pic_preview->window,
pic_preview->style->black_gc,
adjust_pic_coords (first_pnt.x, preview_width),
adjust_pic_coords (first_pnt.y, preview_width),
adjust_pic_coords (start_pnt.x, preview_width),
adjust_pic_coords (start_pnt.y, preview_width));
}
else
{
gdk_draw_line (gfig_preview->window,
gfig_gc,
gfig_scale_x (first_pnt.x),
gfig_scale_y (first_pnt.y),
gfig_scale_x (start_pnt.x),
gfig_scale_y (start_pnt.y));
}
}
static void
d_paint_poly (Dobject *obj)
{
/* first point center */
/* Next point is radius */
gdouble *line_pnts;
gint seg_count = 0;
gint i = 0;
DobjPoints * center_pnt;
DobjPoints * radius_pnt;
gint16 shift_x;
gint16 shift_y;
gdouble ang_grid;
gdouble ang_loop;
gdouble radius;
gdouble offset_angle;
gint loop;
GdkPoint first_pnt, last_pnt;
gint first = 1;
g_assert (obj != NULL);
/* count - add one to close polygon */
seg_count = obj->type_data + 1;
center_pnt = obj->points;
if (!center_pnt || !seg_count || !center_pnt->next)
return; /* no-line */
line_pnts = g_new0 (gdouble, 2 * seg_count + 1);
/* Go around all the points drawing a line from one to the next */
radius_pnt = center_pnt->next; /* this defines the vetices */
/* Have center and radius - get lines */
shift_x = radius_pnt->pnt.x - center_pnt->pnt.x;
shift_y = radius_pnt->pnt.y - center_pnt->pnt.y;
radius = sqrt ((shift_x*shift_x) + (shift_y*shift_y));
/* Lines */
ang_grid = 2*G_PI/(gdouble) obj->type_data;
offset_angle = atan2 (shift_y, shift_x);
for (loop = 0 ; loop < obj->type_data ; loop++)
{
gdouble lx, ly;
GdkPoint calc_pnt;
ang_loop = (gdouble)loop * ang_grid + offset_angle;
lx = radius * cos (ang_loop);
ly = radius * sin (ang_loop);
calc_pnt.x = RINT (lx + center_pnt->pnt.x);
calc_pnt.y = RINT (ly + center_pnt->pnt.y);
/* Miss out duped pnts */
if (!first)
{
if (calc_pnt.x == last_pnt.x && calc_pnt.y == last_pnt.y)
{
continue;
}
}
last_pnt.x = line_pnts[i++] = calc_pnt.x;
last_pnt.y = line_pnts[i++] = calc_pnt.y;
if (first)
{
first_pnt.x = calc_pnt.x;
first_pnt.y = calc_pnt.y;
first = 0;
}
}
line_pnts[i++] = first_pnt.x;
line_pnts[i++] = first_pnt.y;
/* Reverse line if approp */
if (selvals.reverselines)
reverse_pairs_list (&line_pnts[0], i/2);
/* Scale before drawing */
if (selvals.scaletoimage)
scale_to_original_xy (&line_pnts[0], i/2);
else
scale_to_xy (&line_pnts[0], i/2);
/* One go */
if (selvals.painttype == PAINT_BRUSH_TYPE)
{
gfig_paint (selvals.brshtype,
gfig_drawable,
i, line_pnts);
}
else
{
gimp_free_select (gfig_image,
i, line_pnts,
selopt.type,
selopt.antia,
selopt.feather,
selopt.feather_radius);
}
g_free (line_pnts);
}
static void
d_poly2lines (Dobject *obj)
{
/* first point center */
/* Next point is radius */
gint seg_count = 0;
DobjPoints * center_pnt;
DobjPoints * radius_pnt;
gint16 shift_x;
gint16 shift_y;
gdouble ang_grid;
gdouble ang_loop;
gdouble radius;
gdouble offset_angle;
gint loop;
GdkPoint first_pnt, last_pnt;
gint first = 1;
g_assert (obj != NULL);
#ifdef DEBUG
printf ("d_poly2lines --- \n");
#endif /* DEBUG */
/* count - add one to close polygon */
seg_count = obj->type_data + 1;
center_pnt = obj->points;
if (!center_pnt)
return; /* no-line */
/* Undraw it to start with - removes control points */
obj->drawfunc (obj);
/* NULL out these points free later */
obj->points = NULL;
/* Go around all the points creating line points */
radius_pnt = center_pnt->next; /* this defines the vertices */
/* Have center and radius - get lines */
shift_x = radius_pnt->pnt.x - center_pnt->pnt.x;
shift_y = radius_pnt->pnt.y - center_pnt->pnt.y;
radius = sqrt ((shift_x*shift_x) + (shift_y*shift_y));
/* Lines */
ang_grid = 2*G_PI/(gdouble) obj->type_data;
offset_angle = atan2 (shift_y, shift_x);
for (loop = 0 ; loop < obj->type_data ; loop++)
{
gdouble lx, ly;
GdkPoint calc_pnt;
ang_loop = (gdouble)loop * ang_grid + offset_angle;
lx = radius * cos (ang_loop);
ly = radius * sin (ang_loop);
calc_pnt.x = RINT (lx + center_pnt->pnt.x);
calc_pnt.y = RINT (ly + center_pnt->pnt.y);
if (!first)
{
if (calc_pnt.x == last_pnt.x && calc_pnt.y == last_pnt.y)
{
continue;
}
}
d_pnt_add_line (obj, calc_pnt.x, calc_pnt.y, 0);
last_pnt.x = calc_pnt.x;
last_pnt.y = calc_pnt.y;
if (first)
{
first_pnt.x = calc_pnt.x;
first_pnt.y = calc_pnt.y;
first = 0;
}
}
d_pnt_add_line (obj, first_pnt.x, first_pnt.y, 0);
/* Free old pnts */
d_delete_dobjpoints (center_pnt);
/* hey we're a line now */
obj->type = LINE;
obj->drawfunc = d_draw_line;
obj->loadfunc = d_load_line;
obj->savefunc = d_save_line;
obj->paintfunc = d_paint_line;
obj->copyfunc = d_copy_line;
/* draw it + control pnts */
obj->drawfunc (obj);
}
static void
d_star2lines (Dobject *obj)
{
/* first point center */
/* Next point is radius */
gint seg_count = 0;
DobjPoints * center_pnt;
DobjPoints * outer_radius_pnt;
DobjPoints * inner_radius_pnt;
gint16 shift_x;
gint16 shift_y;
gdouble ang_grid;
gdouble ang_loop;
gdouble outer_radius;
gdouble inner_radius;
gdouble offset_angle;
gint loop;
GdkPoint first_pnt, last_pnt;
gint first = 1;
g_assert (obj != NULL);
#ifdef DEBUG
printf ("d_star2lines --- \n");
#endif /* DEBUG */
/* count - add one to close polygon */
seg_count = 2*obj->type_data + 1;
center_pnt = obj->points;
if (!center_pnt)
return; /* no-line */
/* Undraw it to start with - removes control points */
obj->drawfunc (obj);
/* NULL out these points free later */
obj->points = NULL;
/* Go around all the points creating line points */
/* Next point defines the radius */
outer_radius_pnt = center_pnt->next; /* this defines the vetices */
if (!outer_radius_pnt)
{
#ifdef DEBUG
g_warning ("Internal error in star - no outer vertice point \n");
#endif /* DEBUG */
return;
}
inner_radius_pnt = outer_radius_pnt->next; /* this defines the vetices */
if (!inner_radius_pnt)
{
#ifdef DEBUG
g_warning ("Internal error in star - no inner vertice point \n");
#endif /* DEBUG */
return;
}
shift_x = outer_radius_pnt->pnt.x - center_pnt->pnt.x;
shift_y = outer_radius_pnt->pnt.y - center_pnt->pnt.y;
outer_radius = sqrt ((shift_x*shift_x) + (shift_y*shift_y));
/* Lines */
ang_grid = 2*G_PI/(2.0*(gdouble) obj->type_data);
offset_angle = atan2 (shift_y, shift_x);
shift_x = inner_radius_pnt->pnt.x - center_pnt->pnt.x;
shift_y = inner_radius_pnt->pnt.y - center_pnt->pnt.y;
inner_radius = sqrt ((shift_x*shift_x) + (shift_y*shift_y));
for (loop = 0 ; loop < 2*obj->type_data ; loop++)
{
gdouble lx, ly;
GdkPoint calc_pnt;
ang_loop = (gdouble)loop * ang_grid + offset_angle;
if (loop%2)
{
lx = inner_radius * cos (ang_loop);
ly = inner_radius * sin (ang_loop);
}
else
{
lx = outer_radius * cos (ang_loop);
ly = outer_radius * sin (ang_loop);
}
calc_pnt.x = RINT (lx + center_pnt->pnt.x);
calc_pnt.y = RINT (ly + center_pnt->pnt.y);
if (!first)
{
if (calc_pnt.x == last_pnt.x && calc_pnt.y == last_pnt.y)
{
continue;
}
}
d_pnt_add_line (obj, calc_pnt.x, calc_pnt.y, 0);
last_pnt.x = calc_pnt.x;
last_pnt.y = calc_pnt.y;
if (first)
{
first_pnt.x = calc_pnt.x;
first_pnt.y = calc_pnt.y;
first = 0;
}
}
d_pnt_add_line (obj, first_pnt.x, first_pnt.y, 0);
/* Free old pnts */
d_delete_dobjpoints (center_pnt);
/* hey we're a line now */
obj->type = LINE;
obj->drawfunc = d_draw_line;
obj->loadfunc = d_load_line;
obj->savefunc = d_save_line;
obj->paintfunc = d_paint_line;
obj->copyfunc = d_copy_line;
/* draw it + control pnts */
obj->drawfunc (obj);
}
static Dobject *
d_copy_poly (Dobject * obj)
{
Dobject *np;
#if DEBUG
printf ("Copy poly\n");
#endif /* DEBUG */
if (!obj)
return (NULL);
g_assert (obj->type == POLY);
np = d_new_poly (obj->points->pnt.x, obj->points->pnt.y);
np->points->next = d_copy_dobjpoints (obj->points->next);
np->type_data = obj->type_data;
#if DEBUG
printf ("Done poly copy\n");
#endif /* DEBUG */
return (np);
}
static Dobject *
d_new_poly (gint x, gint y)
{
Dobject *nobj;
DobjPoints *npnt;
/* Get new object and starting point */
/* Start point */
npnt = g_new0 (DobjPoints, 1);
#if DEBUG
printf ("New POLY start at (%x,%x)\n", x, y);
#endif /* DEBUG */
npnt->pnt.x = x;
npnt->pnt.y = y;
nobj = g_new0 (Dobject, 1);
nobj->type = POLY;
nobj->type_data = 3; /* Default to three sides */
nobj->points = npnt;
nobj->drawfunc = d_draw_poly;
nobj->loadfunc = d_load_poly;
nobj->savefunc = d_save_poly;
nobj->paintfunc = d_paint_poly;
nobj->copyfunc = d_copy_poly;
return (nobj);
}
static void
d_update_poly (GdkPoint *pnt)
{
DobjPoints *center_pnt, *edge_pnt;
gint saved_cnt_pnt = selvals.opts.showcontrol;
/* Undraw last one then draw new one */
center_pnt = obj_creating->points;
if (!center_pnt)
return; /* No points */
/* Leave the first pnt alone -
* Edge point defines "radius"
* Only undraw if already have edge point.
*/
/* Hack - turn off cnt points in draw routine
* Looking back over the other update routines I could
* use this trick again and cut down on code size!
*/
if ((edge_pnt = center_pnt->next))
{
/* Undraw */
draw_circle (&edge_pnt->pnt);
selvals.opts.showcontrol = 0;
d_draw_poly (obj_creating);
edge_pnt->pnt.x = pnt->x;
edge_pnt->pnt.y = pnt->y;
}
else
{
/* Radius is a few pixels away */
/* First edge point */
d_pnt_add_line (obj_creating, pnt->x, pnt->y, -1);
edge_pnt = center_pnt->next;
}
/* draw it */
selvals.opts.showcontrol = 0;
d_draw_poly (obj_creating);
selvals.opts.showcontrol = saved_cnt_pnt;
/* Realy draw the control points */
draw_circle (&edge_pnt->pnt);
}
/* first point is center
* next defines the radius
*/
static void
d_poly_start (GdkPoint *pnt,
gint shift_down)
{
gint16 x, y;
/* First is center point */
obj_creating = d_new_poly (x = pnt->x, y = pnt->y);
obj_creating->type_data = poly_num_sides;
}
static void
d_poly_end (GdkPoint *pnt,
gint shift_down)
{
draw_circle (pnt);
add_to_all_obj (current_obj, obj_creating);
obj_creating = NULL;
}
/* ARC stuff */
/* Distance between two lines */
static gdouble
dist (gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2)
{
double s1 = x1 - x2;
double s2 = y1 - y2;
return sqrt (s1 * s1 + s2 * s2);
}
/* Mid point of line returned */
static void
mid_point (gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2,
gdouble *mx,
gdouble *my)
{
*mx = ((double) (x1 - x2))/2.0 + (double)x2;
*my = ((double) (y1 - y2))/2.0 + (double)y2;
}
/* Careful about infinite grads */
static gdouble
line_grad (gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2)
{
double dx, dy;
dx = x1 - x2;
dy = y1 - y2;
return (dx == 0.0) ? 0.0 : dy / dx;
}
/* Constant of line that goes through x, y with grad lgrad */
static gdouble
line_cons (gdouble x,
gdouble y,
gdouble lgrad)
{
return y - lgrad * x;
}
/*Get grad & const for perpend. line to given points */
static void
line_definition (gdouble x1,
gdouble y1,
gdouble x2,
gdouble y2,
gdouble *lgrad,
gdouble *lconst)
{
double grad1;
double midx, midy;
grad1 = line_grad (x1, y1, x2, y2);
if (grad1 == 0.0)
{
#ifdef DEBUG
printf ("Infinite grad....\n");
#endif /* DEBUG */
return;
}
mid_point (x1, y1, x2, y2, &midx, &midy);
/* Invert grad for perpen gradient */
*lgrad = -1.0/grad1;
*lconst = line_cons (midx, midy,*lgrad);
}
/* Arch details
* Given three points get arc radius and the co-ords
* of center point.
*/
static void
arc_details (GdkPoint *vert_a,
GdkPoint *vert_b,
GdkPoint *vert_c,
GdkPoint *center_pnt,
gdouble *radius)
{
/* Only vertices are in whole numbers - everything else is in doubles */
double ax, ay;
double bx, by;
double cx, cy;
double len_a, len_b, len_c;
double sum_sides2;
double area;
double circumcircle_R;
double line1_grad, line1_const;
double line2_grad, line2_const;
double inter_x=0.0, inter_y=0.0;
int got_x=0, got_y=0;
ax = (double) (vert_a->x);
ay = (double) (vert_a->y);
bx = (double) (vert_b->x);
by = (double) (vert_b->y);
cx = (double) (vert_c->x);
cy = (double) (vert_c->y);
#ifdef DEBUG
printf ("Vertices (%f,%f), (%f,%f), (%f,%f)\n", ax, ay, bx, by, cx, cy);
#endif /* DEBUG */
len_a = dist (ax, ay, bx, by);
len_b = dist (bx, by, cx, cy);
len_c = dist (cx, cy, ax, ay);
#ifdef DEBUG
printf ("len_a = %f, len_b = %f, len_c = %f\n", len_a, len_b, len_c);
#endif /* DEBUG */
sum_sides2 = (fabs (len_a) + fabs (len_b) + fabs (len_c))/2;
#ifdef DEBUG
printf ("Sum sides / 2 = %f\n", sum_sides2);
#endif /* DEBUG */
/* Area */
area = sqrt (sum_sides2*(sum_sides2 - len_a)*(sum_sides2 - len_b)*(sum_sides2 - len_c));
#ifdef DEBUG
printf ("Area of triangle = %f\n", area);
#endif /* DEBUG */
/* Circumcircle */
circumcircle_R = len_a*len_b*len_c/(4*area);
*radius = circumcircle_R;
#ifdef DEBUG
printf ("Circumcircle radius = %f\n", circumcircle_R);
#endif /* DEBUG */
/* Deal with exceptions - I hate exceptions */
if (ax == bx || ax == cx || cx == bx)
{
/* vert line -> mid point gives inter_x */
if (ax == bx && bx == cx)
{
/* Straight line */
double miny = ay;
double maxy = ay;
if (by > maxy)
maxy = by;
if (by < miny)
miny = by;
if (cy > maxy)
maxy = cy;
if (cy < miny)
miny = cy;
inter_y = (maxy - miny)/2 + miny;
}
else if (ax == bx)
{
inter_y = (ay - by)/2 + by;
}
else if (bx == cx)
{
inter_y = (by - cy)/2 + cy;
}
else
{
inter_y = (cy - ay)/2 + ay;
}
got_y = 1;
}
if (ay == by || by == cy || ay == cy)
{
/* Horz line -> midpoint gives inter_y */
if (ax == bx && bx == cx)
{
/* Straight line */
double minx = ax;
double maxx = ax;
if (bx > maxx)
maxx = bx;
if (bx < minx)
minx = bx;
if (cx > maxx)
maxx = cx;
if (cx < minx)
minx = cx;
inter_x = (maxx - minx)/2 + minx;
}
else if (ay == by)
{
inter_x = (ax - bx)/2 + bx;
}
else if (by == cy)
{
inter_x = (bx - cx)/2 + cx;
}
else
{
inter_x = (cx - ax)/2 + ax;
}
got_x = 1;
}
if (!got_x || !got_y)
{
/* At least two of the lines are not parallel to the axis */
/*first line */
if (ax != bx && ay != by)
line_definition (ax, ay, bx, by, &line1_grad, &line1_const);
else
line_definition (ax, ay, cx, cy, &line1_grad, &line1_const);
/* second line */
if (bx != cx && by != cy)
line_definition (bx, by, cx, cy, &line2_grad, &line2_const);
else
line_definition (ax, ay, cx, cy, &line2_grad, &line2_const);
}
/* Intersection point */
if (!got_x)
inter_x = /*rint*/((line2_const - line1_const)/(line1_grad - line2_grad));
if (!got_y)
inter_y = /*rint*/((line1_grad * inter_x + line1_const));
#ifdef DEBUG
printf ("Intersection point is (%f,%f)\n", inter_x, inter_y);
#endif /* DEBUG */
center_pnt->x = (gint16)inter_x;
center_pnt->y = (gint16)inter_y;
}
static gdouble
arc_angle (GdkPoint *pnt,
GdkPoint *center)
{
/* Get angle (in degress) of point given origin of center */
gint16 shift_x;
gint16 shift_y;
gdouble offset_angle;
shift_x = pnt->x - center->x;
shift_y = -pnt->y + center->y;
offset_angle = atan2 (shift_y, shift_x);
#ifdef DEBUG
printf ("offset_ang = %f\n", offset_angle);
#endif /* DEBUG */
if (offset_angle < 0)
offset_angle += 2*G_PI;
return (offset_angle*360/(2*G_PI));
}
static void
d_save_arc (Dobject *obj,
FILE *to)
{
DobjPoints * spnt;
spnt = obj->points;
if (!spnt)
return;
fprintf (to, "<ARC>\n");
while (spnt)
{
fprintf (to, "%d %d\n",
spnt->pnt.x,
spnt->pnt.y);
spnt = spnt->next;
}
fprintf (to, "</ARC>\n");
}
/* Load a circle from the specified stream */
static Dobject *
d_load_arc (FILE *from)
{
Dobject *new_obj = NULL;
gint xpnt;
gint ypnt;
gchar buf[MAX_LOAD_LINE];
gint num_pnts = 0;
#ifdef DEBUG
printf ("Load arc called\n");
#endif /* DEBUG */
while (get_line (buf, MAX_LOAD_LINE, from, 0))
{
if (sscanf (buf, "%d %d", &xpnt, &ypnt) != 2)
{
/* Must be the end */
if (strcmp ("</ARC>", buf) || num_pnts != 3)
{
g_warning ("[%d] Internal load error while loading arc",
line_no);
return (NULL);
}
return (new_obj);
}
num_pnts++;
if (!new_obj)
new_obj = d_new_arc (xpnt, ypnt);
else
{
d_pnt_add_line (new_obj, xpnt, ypnt,-1);
}
}
g_warning ("[%d] Not enough points for arc", line_no);
return (NULL);
}
static void
arc_drawing_details (Dobject *obj,
gdouble *minang,
GdkPoint *center_pnt,
gdouble *arcang,
gdouble *radius,
gint draw_cnts,
gint do_scale)
{
DobjPoints * pnt1 = NULL;
DobjPoints * pnt2 = NULL;
DobjPoints * pnt3 = NULL;
DobjPoints dpnts[3];
gdouble ang1, ang2, ang3;
gdouble maxang;
pnt1 = obj->points;
if (!pnt1)
return; /* Not fully drawn */
pnt2 = pnt1->next;
if (!pnt2)
return; /* Not fully drawn */
pnt3 = pnt2->next;
if (!pnt3)
return; /* Still not fully drawn */
if (draw_cnts)
{
draw_sqr (&pnt1->pnt);
draw_sqr (&pnt2->pnt);
draw_sqr (&pnt3->pnt);
}
if (do_scale)
{
/* Adjust pnts for scaling */
/* Warning struct copies here! and casting to double <-> int */
/* Too complex fix me - to much hacking */
gdouble xy[2];
int j;
dpnts[0] = *pnt1;
dpnts[1] = *pnt2;
dpnts[2] = *pnt3;
pnt1 = &dpnts[0];
pnt2 = &dpnts[1];
pnt3 = &dpnts[2];
for (j = 0 ; j < 3; j++)
{
xy[0] = dpnts[j].pnt.x;
xy[1] = dpnts[j].pnt.y;
if (selvals.scaletoimage)
scale_to_original_xy (&xy[0], 1);
else
scale_to_xy (&xy[0], 1);
dpnts[j].pnt.x = xy[0];
dpnts[j].pnt.y = xy[1];
}
}
arc_details (&pnt1->pnt, &pnt2->pnt, &pnt3->pnt, center_pnt, radius);
ang1 = arc_angle (&pnt1->pnt, center_pnt);
ang2 = arc_angle (&pnt2->pnt, center_pnt);
ang3 = arc_angle (&pnt3->pnt, center_pnt);
/* Find min/max angle */
maxang = ang1;
if (ang3 > maxang)
maxang = ang3;
*minang = ang1;
if (ang3 < *minang)
*minang = ang3;
if (ang2 > *minang && ang2 < maxang)
*arcang = maxang - *minang;
else
*arcang = maxang - *minang - 360;
}
static void
d_draw_arc (Dobject * obj)
{
GdkPoint center_pnt;
gdouble radius, minang, arcang;
g_assert (obj != NULL);
if (!obj)
return;
arc_drawing_details (obj, &minang, &center_pnt, &arcang, &radius, TRUE, FALSE);
#ifdef DEBUG
printf ("Min ang = %f Arc ang = %f\n", minang, arcang);
#endif /* DEBUG */
if (drawing_pic)
{
gdk_draw_arc (pic_preview->window,
pic_preview->style->black_gc,
0,
adjust_pic_coords (center_pnt.x - (gint)radius,
preview_width),
adjust_pic_coords (center_pnt.y - (gint)radius,
preview_height),
adjust_pic_coords ((gint) (radius * 2),
preview_width),
adjust_pic_coords ((gint) (radius * 2),
preview_height),
(gint) (minang*64),
(gint) (arcang*64));
}
else
{
gdk_draw_arc (gfig_preview->window,
gfig_gc,
0,
gfig_scale_x (center_pnt.x - (gint)radius),
gfig_scale_y (center_pnt.y - (gint)radius),
gfig_scale_x ((gint) (radius * 2)),
gfig_scale_y ((gint) (radius * 2)),
(gint) (minang*64),
(gint) (arcang*64));
}
}
static void
d_paint_arc (Dobject *obj)
{
/* first point center */
/* Next point is radius */
gdouble *line_pnts;
gint seg_count = 0;
gint i = 0;
gdouble ang_grid;
gdouble ang_loop;
gdouble radius;
gint loop;
GdkPoint first_pnt, last_pnt;
gint first = 1;
GdkPoint center_pnt;
gdouble minang, arcang;
g_assert (obj != NULL);
if (!obj)
return;
/* No cnt pnts & must scale */
arc_drawing_details (obj, &minang, &center_pnt, &arcang, &radius, FALSE, TRUE);
#ifdef DEBUG
printf ("Paint Min ang = %f Arc ang = %f\n", minang, arcang);
#endif /* DEBUG */
seg_count = 360; /* Should make a smoth-ish curve */
/* +3 because we MIGHT do pie selection */
line_pnts = g_new0 (gdouble, 2 * seg_count + 3);
/* Lines */
ang_grid = 2*G_PI/(gdouble)360;
if (arcang < 0.0)
{
/* Swap - since we always draw anti-clock wise */
minang += arcang;
arcang = -arcang;
}
minang = minang * (2*G_PI/360); /* min ang is in degrees - need in rads*/
for (loop = 0 ; loop < abs ((gint)arcang) ; loop++)
{
gdouble lx, ly;
GdkPoint calc_pnt;
ang_loop = (gdouble)loop * ang_grid + minang;
lx = radius * cos (ang_loop);
ly = -radius * sin (ang_loop); /* y grows down screen and angs measured from x clockwise */
calc_pnt.x = RINT (lx + center_pnt.x);
calc_pnt.y = RINT (ly + center_pnt.y);
/* Miss out duped pnts */
if (!first)
{
if (calc_pnt.x == last_pnt.x && calc_pnt.y == last_pnt.y)
{
continue;
}
}
last_pnt.x = line_pnts[i++] = calc_pnt.x;
last_pnt.y = line_pnts[i++] = calc_pnt.y;
if (first)
{
first_pnt = calc_pnt;
first = 0;
}
}
/* Reverse line if approp */
if (selvals.reverselines)
reverse_pairs_list (&line_pnts[0], i/2);
/* One go */
if (selvals.painttype == PAINT_BRUSH_TYPE)
{
gfig_paint (selvals.brshtype,
gfig_drawable,
i, line_pnts);
}
else
{
if (selopt.as_pie)
{
/* Add center point - cause a pie like selection... */
line_pnts[i++] = center_pnt.x;
line_pnts[i++] = center_pnt.y;
}
gimp_free_select (gfig_image,
i, line_pnts,
selopt.type,
selopt.antia,
selopt.feather,
selopt.feather_radius);
}
g_free (line_pnts);
}
static Dobject *
d_copy_arc (Dobject * obj)
{
Dobject *nc;
#if DEBUG
printf ("Copy ellipse\n");
#endif /* DEBUG */
if (!obj)
return (NULL);
g_assert (obj->type == ARC);
nc = d_new_arc (obj->points->pnt.x, obj->points->pnt.y);
nc->points->next = d_copy_dobjpoints (obj->points->next);
#if DEBUG
printf ("Arc (%x,%x), (%x,%x), (%x,%x)\n",
nc->points->pnt.x, obj->points->pnt.y,
nc->points->next->pnt.x, obj->points->next->pnt.y,
nc->points->next->next->pnt.x, obj->points->next->next->pnt.y);
printf ("Done copy\n");
#endif /* DEBUG */
return (nc);
}
static Dobject *
d_new_arc (gint x,
gint y)
{
Dobject *nobj;
DobjPoints *npnt;
/* Get new object and starting point */
/* Start point */
npnt = g_new0 (DobjPoints, 1);
#if DEBUG
printf ("New arc start at (%x,%x)\n", x, y);
#endif /* DEBUG */
npnt->pnt.x = x;
npnt->pnt.y = y;
nobj = g_new0 (Dobject, 1);
nobj->type = ARC;
nobj->points = npnt;
nobj->drawfunc = d_draw_arc;
nobj->loadfunc = d_load_arc;
nobj->savefunc = d_save_arc;
nobj->paintfunc = d_paint_arc;
nobj->copyfunc = d_copy_arc;
return (nobj);
}
static void
d_update_arc (GdkPoint *pnt)
{
DobjPoints * pnt1 = NULL;
DobjPoints * pnt2 = NULL;
DobjPoints * pnt3 = NULL;
/* First two points as line only become arch when third
* point is placed on canvas.
*/
pnt1 = obj_creating->points;
if (!pnt1 ||
!(pnt2 = pnt1->next) ||
!(pnt3 = pnt2->next))
{
d_update_line (pnt);
return; /* Not fully drawn */
}
/* Update a real curve */
/* Nothing to be done ... */
}
static void
d_arc_start (GdkPoint *pnt,
gint shift_down)
{
/* Draw lines to start with -- then convert to an arc */
if (!tmp_line)
draw_sqr (pnt);
d_line_start (pnt, TRUE); /* TRUE means multiple pointed line */
}
static void
d_arc_end (GdkPoint *pnt,
gint shift_down)
{
/* Under contrl point */
if (!tmp_line ||
!tmp_line->points ||
!tmp_line->points->next)
{
/* No arc created - yet */
/* Must have three points */
#ifdef DEBUG
printf ("No arc created yet\n");
#endif /* DEBUG */
d_line_end (pnt, TRUE);
}
else
{
/* Complete arc */
/* Convert to an arc ... */
tmp_line->type = ARC;
tmp_line->drawfunc = d_draw_arc;
tmp_line->loadfunc = d_load_arc;
tmp_line->savefunc = d_save_arc;
tmp_line->paintfunc = d_paint_arc;
tmp_line->copyfunc = d_copy_arc;
d_line_end (pnt, FALSE);
/*d_draw_line (newarc); Should undraw line */
if (need_to_scale)
{
selvals.scaletoimage = 0;
}
/*d_draw_arc (newarc);*/
gtk_widget_queue_draw (gfig_preview);
if (need_to_scale)
{
selvals.scaletoimage = 1;
}
}
}
/*XXXXXXXXXXXXXXXXXXXXXXX*/
/* Star shape */
static void
d_save_star (Dobject *obj,
FILE *to)
{
DobjPoints *spnt;
spnt = obj->points;
if (!spnt)
return; /* End-of-line */
fprintf (to, "<STAR>\n");
while (spnt)
{
fprintf (to, "%d %d\n",
spnt->pnt.x,
spnt->pnt.y);
spnt = spnt->next;
}
fprintf (to, "<EXTRA>\n");
fprintf (to, "%d\n</EXTRA>\n", obj->type_data);
fprintf (to, "</STAR>\n");
}
/* Load a circle from the specified stream */
static Dobject *
d_load_star (FILE *from)
{
Dobject *new_obj = NULL;
gint xpnt;
gint ypnt;
gchar buf[MAX_LOAD_LINE];
#ifdef DEBUG
printf ("Load star called\n");
#endif /* DEBUG */
while (get_line (buf, MAX_LOAD_LINE, from, 0))
{
if (sscanf (buf, "%d %d", &xpnt, &ypnt) != 2)
{
/* Must be the end */
if (!strcmp ("<EXTRA>", buf))
{
gint nsides = 3;
/* Number of sides - data item */
if (!new_obj)
{
g_warning ("[%d] Internal load error while loading star (extra area)",
line_no);
return (NULL);
}
get_line (buf, MAX_LOAD_LINE, from, 0);
if (sscanf (buf, "%d", &nsides) != 1)
{
g_warning ("[%d] Internal load error while loading star (extra area scanf)",
line_no);
return (NULL);
}
new_obj->type_data = nsides;
get_line (buf, MAX_LOAD_LINE, from, 0);
if (strcmp ("</EXTRA>", buf))
{
g_warning ("[%d] Internal load error while loading star",
line_no);
return (NULL);
}
/* Go around and read the last line */
continue;
}
else if (strcmp ("</STAR>", buf))
{
g_warning ("[%d] Internal load error while loading star",
line_no);
return (NULL);
}
return (new_obj);
}
if (!new_obj)
new_obj = d_new_star (xpnt, ypnt);
else
d_pnt_add_line (new_obj, xpnt, ypnt,-1);
}
return (new_obj);
}
static void
d_draw_star (Dobject *obj)
{
DobjPoints * center_pnt;
DobjPoints * outer_radius_pnt;
DobjPoints * inner_radius_pnt;
gint16 shift_x;
gint16 shift_y;
gdouble ang_grid;
gdouble ang_loop;
gdouble outer_radius;
gdouble inner_radius;
gdouble offset_angle;
gint loop;
GdkPoint start_pnt;
GdkPoint first_pnt;
gint do_line = 0;
center_pnt = obj->points;
if (!center_pnt)
return; /* End-of-line */
/* First point is the center */
/* Just draw a control point around it */
draw_sqr (&center_pnt->pnt);
/* Next point defines the radius */
outer_radius_pnt = center_pnt->next; /* this defines the vetices */
if (!outer_radius_pnt)
{
#ifdef DEBUG
g_warning ("Internal error in star - no outer vertice point \n");
#endif /* DEBUG */
return;
}
inner_radius_pnt = outer_radius_pnt->next; /* this defines the vetices */
if (!inner_radius_pnt)
{
#ifdef DEBUG
g_warning ("Internal error in star - no inner vertice point \n");
#endif /* DEBUG */
return;
}
/* Other control points */
draw_sqr (&outer_radius_pnt->pnt);
draw_sqr (&inner_radius_pnt->pnt);
/* Have center and radius - draw star */
shift_x = outer_radius_pnt->pnt.x - center_pnt->pnt.x;
shift_y = outer_radius_pnt->pnt.y - center_pnt->pnt.y;
outer_radius = sqrt ((shift_x*shift_x) + (shift_y*shift_y));
/* Lines */
ang_grid = 2*G_PI/(2.0*(gdouble) obj->type_data);
offset_angle = atan2 (shift_y, shift_x);
shift_x = inner_radius_pnt->pnt.x - center_pnt->pnt.x;
shift_y = inner_radius_pnt->pnt.y - center_pnt->pnt.y;
inner_radius = sqrt ((shift_x*shift_x) + (shift_y*shift_y));
for (loop = 0 ; loop < 2 * obj->type_data ; loop++)
{
gdouble lx, ly;
GdkPoint calc_pnt;
ang_loop = (gdouble)loop * ang_grid + offset_angle;
if (loop%2)
{
lx = inner_radius * cos (ang_loop);
ly = inner_radius * sin (ang_loop);
}
else
{
lx = outer_radius * cos (ang_loop);
ly = outer_radius * sin (ang_loop);
}
calc_pnt.x = RINT (lx + center_pnt->pnt.x);
calc_pnt.y = RINT (ly + center_pnt->pnt.y);
if (do_line)
{
/* Miss out points that come to the same location */
if (calc_pnt.x == start_pnt.x && calc_pnt.y == start_pnt.y)
continue;
if (drawing_pic)
{
gdk_draw_line (pic_preview->window,
pic_preview->style->black_gc,
adjust_pic_coords (calc_pnt.x,
preview_width),
adjust_pic_coords (calc_pnt.y,
preview_height),
adjust_pic_coords (start_pnt.x,
preview_width),
adjust_pic_coords (start_pnt.y,
preview_height));
}
else
{
gdk_draw_line (gfig_preview->window,
gfig_gc,
gfig_scale_x (calc_pnt.x),
gfig_scale_y (calc_pnt.y),
gfig_scale_x (start_pnt.x),
gfig_scale_y (start_pnt.y));
}
}
else
{
do_line = 1;
first_pnt.x = calc_pnt.x;
first_pnt.y = calc_pnt.y;
}
start_pnt.x = calc_pnt.x;
start_pnt.y = calc_pnt.y;
}
/* Join up */
if (drawing_pic)
{
gdk_draw_line (pic_preview->window,
pic_preview->style->black_gc,
adjust_pic_coords (first_pnt.x, preview_width),
adjust_pic_coords (first_pnt.y, preview_width),
adjust_pic_coords (start_pnt.x, preview_width),
adjust_pic_coords (start_pnt.y, preview_width));
}
else
{
gdk_draw_line (gfig_preview->window,
gfig_gc,
gfig_scale_x (first_pnt.x),
gfig_scale_y (first_pnt.y),
gfig_scale_x (start_pnt.x),
gfig_scale_y (start_pnt.y));
}
}
static void
d_paint_star (Dobject *obj)
{
/* first point center */
/* Next point is radius */
gdouble *line_pnts;
gint seg_count = 0;
gint i = 0;
DobjPoints * center_pnt;
DobjPoints * outer_radius_pnt;
DobjPoints * inner_radius_pnt;
gint16 shift_x;
gint16 shift_y;
gdouble ang_grid;
gdouble ang_loop;
gdouble outer_radius;
gdouble inner_radius;
gdouble offset_angle;
gint loop;
GdkPoint first_pnt, last_pnt;
gint first = 1;
g_assert (obj != NULL);
/* count - add one to close polygon */
seg_count = 2 * obj->type_data + 1;
center_pnt = obj->points;
if (!center_pnt || !seg_count)
return; /* no-line */
line_pnts = g_new0 (gdouble, 2 * seg_count + 1);
/* Go around all the points drawing a line from one to the next */
/* Next point defines the radius */
outer_radius_pnt = center_pnt->next; /* this defines the vetices */
if (!outer_radius_pnt)
{
#ifdef DEBUG
g_warning ("Internal error in star - no outer vertice point \n");
#endif /* DEBUG */
return;
}
inner_radius_pnt = outer_radius_pnt->next; /* this defines the vetices */
if (!inner_radius_pnt)
{
#ifdef DEBUG
g_warning ("Internal error in star - no inner vertice point \n");
#endif /* DEBUG */
return;
}
shift_x = outer_radius_pnt->pnt.x - center_pnt->pnt.x;
shift_y = outer_radius_pnt->pnt.y - center_pnt->pnt.y;
outer_radius = sqrt ((shift_x*shift_x) + (shift_y*shift_y));
/* Lines */
ang_grid = 2*G_PI/(2.0*(gdouble) obj->type_data);
offset_angle = atan2 (shift_y, shift_x);
shift_x = inner_radius_pnt->pnt.x - center_pnt->pnt.x;
shift_y = inner_radius_pnt->pnt.y - center_pnt->pnt.y;
inner_radius = sqrt ((shift_x*shift_x) + (shift_y*shift_y));
for (loop = 0 ; loop < 2*obj->type_data ; loop++)
{
gdouble lx, ly;
GdkPoint calc_pnt;
ang_loop = (gdouble)loop * ang_grid + offset_angle;
if (loop%2)
{
lx = inner_radius * cos (ang_loop);
ly = inner_radius * sin (ang_loop);
}
else
{
lx = outer_radius * cos (ang_loop);
ly = outer_radius * sin (ang_loop);
}
calc_pnt.x = RINT (lx + center_pnt->pnt.x);
calc_pnt.y = RINT (ly + center_pnt->pnt.y);
/* Miss out duped pnts */
if (!first)
{
if (calc_pnt.x == last_pnt.x && calc_pnt.y == last_pnt.y)
{
continue;
}
}
last_pnt.x = line_pnts[i++] = calc_pnt.x;
last_pnt.y = line_pnts[i++] = calc_pnt.y;
if (first)
{
first_pnt = calc_pnt;
first = 0;
}
}
line_pnts[i++] = first_pnt.x;
line_pnts[i++] = first_pnt.y;
/* Reverse line if approp */
if (selvals.reverselines)
reverse_pairs_list (&line_pnts[0], i/2);
/* Scale before drawing */
if (selvals.scaletoimage)
scale_to_original_xy (&line_pnts[0], i/2);
else
scale_to_xy (&line_pnts[0], i/2);
/* One go */
if (selvals.painttype == PAINT_BRUSH_TYPE)
{
gfig_paint (selvals.brshtype,
gfig_drawable,
i, line_pnts);
}
else
{
gimp_free_select (gfig_image,
i, line_pnts,
selopt.type,
selopt.antia,
selopt.feather,
selopt.feather_radius);
}
g_free (line_pnts);
}
static Dobject *
d_copy_star (Dobject * obj)
{
Dobject *np;
#if DEBUG
printf ("Copy star\n");
#endif /* DEBUG */
if (!obj)
return (NULL);
g_assert (obj->type == STAR);
np = d_new_star (obj->points->pnt.x, obj->points->pnt.y);
np->points->next = d_copy_dobjpoints (obj->points->next);
np->type_data = obj->type_data;
#if DEBUG
printf ("Done star copy\n");
#endif /* DEBUG */
return np;
}
static Dobject *
d_new_star (gint x,
gint y)
{
Dobject *nobj;
DobjPoints *npnt;
/* Get new object and starting point */
/* Start point */
npnt = g_new0 (DobjPoints, 1);
#if DEBUG
printf ("New STAR start at (%x,%x)\n", x, y);
#endif /* DEBUG */
npnt->pnt.x = x;
npnt->pnt.y = y;
nobj = g_new0 (Dobject, 1);
nobj->type = STAR;
nobj->type_data = 3; /* Default to three sides 6 points*/
nobj->points = npnt;
nobj->drawfunc = d_draw_star;
nobj->loadfunc = d_load_star;
nobj->savefunc = d_save_star;
nobj->paintfunc = d_paint_star;
nobj->copyfunc = d_copy_star;
return nobj;
}
static void
d_update_star (GdkPoint *pnt)
{
DobjPoints *center_pnt, *inner_pnt, *outer_pnt;
gint saved_cnt_pnt = selvals.opts.showcontrol;
/* Undraw last one then draw new one */
center_pnt = obj_creating->points;
if (!center_pnt)
return; /* No points */
/* Leave the first pnt alone -
* Edge point defines "radius"
* Only undraw if already have edge point.
*/
/* Hack - turn off cnt points in draw routine
* Looking back over the other update routines I could
* use this trick again and cut down on code size!
*/
if ((outer_pnt = center_pnt->next))
{
/* Undraw */
inner_pnt = outer_pnt->next;
draw_circle (&inner_pnt->pnt);
draw_circle (&outer_pnt->pnt);
selvals.opts.showcontrol = 0;
d_draw_star (obj_creating);
outer_pnt->pnt.x = pnt->x;
outer_pnt->pnt.y = pnt->y;
inner_pnt->pnt.x = pnt->x + (2*(center_pnt->pnt.x - pnt->x))/3;
inner_pnt->pnt.y = pnt->y + (2*(center_pnt->pnt.y - pnt->y))/3;
}
else
{
/* Radius is a few pixels away */
/* First edge point */
d_pnt_add_line (obj_creating, pnt->x, pnt->y,-1);
outer_pnt = center_pnt->next;
/* Inner radius */
d_pnt_add_line (obj_creating,
pnt->x + (2*(center_pnt->pnt.x - pnt->x))/3,
pnt->y + (2*(center_pnt->pnt.y - pnt->y))/3,
-1);
inner_pnt = outer_pnt->next;
}
/* draw it */
selvals.opts.showcontrol = 0;
d_draw_star (obj_creating);
selvals.opts.showcontrol = saved_cnt_pnt;
/* Realy draw the control points */
draw_circle (&outer_pnt->pnt);
draw_circle (&inner_pnt->pnt);
}
/* first point is center
* next defines the radius
*/
static void
d_star_start (GdkPoint *pnt,
gint shift_down)
{
gint16 x, y;
/* First is center point */
obj_creating = d_new_star (x = pnt->x, y = pnt->y);
obj_creating->type_data = star_num_sides;
}
static void
d_star_end (GdkPoint *pnt,
gint shift_down)
{
draw_circle (pnt);
add_to_all_obj (current_obj, obj_creating);
obj_creating = NULL;
}
/* Spiral */
static void
d_save_spiral (Dobject *obj,
FILE *to)
{
DobjPoints * spnt;
spnt = obj->points;
if (!spnt)
return; /* End-of-line */
fprintf (to, "<SPIRAL>\n");
while (spnt)
{
fprintf (to, "%d %d\n",
spnt->pnt.x,
spnt->pnt.y);
spnt = spnt->next;
}
fprintf (to, "<EXTRA>\n");
fprintf (to, "%d\n</EXTRA>\n", obj->type_data);
fprintf (to, "</SPIRAL>\n");
}
/* Load a spiral from the specified stream */
static Dobject *
d_load_spiral (FILE *from)
{
Dobject *new_obj = NULL;
gint xpnt;
gint ypnt;
gchar buf[MAX_LOAD_LINE];
#ifdef DEBUG
printf ("Load spiral called\n");
#endif /* DEBUG */
while (get_line (buf, MAX_LOAD_LINE, from, 0))
{
if (sscanf (buf, "%d %d", &xpnt, &ypnt) != 2)
{
/* Must be the end */
if (!strcmp ("<EXTRA>", buf))
{
gint nsides = 3;
/* Number of sides - data item */
if (!new_obj)
{
g_warning ("[%d] Internal load error while loading spiral (extra area)",
line_no);
return (NULL);
}
get_line (buf, MAX_LOAD_LINE, from, 0);
if (sscanf (buf, "%d", &nsides) != 1)
{
g_warning ("[%d] Internal load error while loading spiral (extra area scanf)",
line_no);
return (NULL);
}
new_obj->type_data = nsides;
get_line (buf, MAX_LOAD_LINE, from, 0);
if (strcmp ("</EXTRA>", buf))
{
g_warning ("[%d] Internal load error while loading spiral",
line_no);
return (NULL);
}
/* Go around and read the last line */
continue;
}
else if (strcmp ("</SPIRAL>", buf))
{
g_warning ("[%d] Internal load error while loading spiral",
line_no);
return (NULL);
}
return (new_obj);
}
if (!new_obj)
new_obj = d_new_spiral (xpnt, ypnt);
else
d_pnt_add_line (new_obj, xpnt, ypnt,-1);
}
return (new_obj);
}
static void
d_draw_spiral (Dobject *obj)
{
DobjPoints * center_pnt;
DobjPoints * radius_pnt;
gint16 shift_x;
gint16 shift_y;
gdouble ang_grid;
gdouble ang_loop;
gdouble radius;
gdouble offset_angle;
gdouble sp_cons;
gint loop;
GdkPoint start_pnt;
GdkPoint first_pnt;
gint do_line = 0;
gint clock_wise = 1;
center_pnt = obj->points;
if (!center_pnt)
return; /* End-of-line */
/* First point is the center */
/* Just draw a control point around it */
draw_sqr (&center_pnt->pnt);
/* Next point defines the radius */
radius_pnt = center_pnt->next; /* this defines the vetices */
if (!radius_pnt)
{
#ifdef DEBUG
g_warning ("Internal error in spiral - no vertice point \n");
#endif /* DEBUG */
return;
}
/* Other control point */
draw_sqr (&radius_pnt->pnt);
/* Have center and radius - draw spiral */
shift_x = radius_pnt->pnt.x - center_pnt->pnt.x;
shift_y = radius_pnt->pnt.y - center_pnt->pnt.y;
radius = sqrt ((shift_x*shift_x) + (shift_y*shift_y));
offset_angle = atan2 (shift_y, shift_x);
clock_wise = obj->type_data / abs (obj->type_data);
if (offset_angle < 0)
offset_angle += 2*G_PI;
sp_cons = radius/(obj->type_data * 2 * G_PI + offset_angle);
/* Lines */
ang_grid = 2.0*G_PI/(gdouble)180;
for (loop = 0 ; loop <= abs (obj->type_data * 180) + clock_wise*(gint)RINT (offset_angle/ang_grid) ; loop++)
{
gdouble lx, ly;
GdkPoint calc_pnt;
ang_loop = (gdouble)loop * ang_grid;
lx = sp_cons * ang_loop * cos (ang_loop)*clock_wise;
ly = sp_cons * ang_loop * sin (ang_loop);
calc_pnt.x = RINT (lx + center_pnt->pnt.x);
calc_pnt.y = RINT (ly + center_pnt->pnt.y);
if (do_line)
{
/* Miss out points that come to the same location */
if (calc_pnt.x == start_pnt.x && calc_pnt.y == start_pnt.y)
continue;
if (drawing_pic)
{
gdk_draw_line (pic_preview->window,
pic_preview->style->black_gc,
adjust_pic_coords (calc_pnt.x,
preview_width),
adjust_pic_coords (calc_pnt.y,
preview_height),
adjust_pic_coords (start_pnt.x,
preview_width),
adjust_pic_coords (start_pnt.y,
preview_height));
}
else
{
gdk_draw_line (gfig_preview->window,
gfig_gc,
gfig_scale_x (calc_pnt.x),
gfig_scale_y (calc_pnt.y),
gfig_scale_x (start_pnt.x),
gfig_scale_y (start_pnt.y));
}
}
else
{
do_line = 1;
first_pnt.x = calc_pnt.x;
first_pnt.y = calc_pnt.y;
}
start_pnt.x = calc_pnt.x;
start_pnt.y = calc_pnt.y;
}
}
static void
d_paint_spiral (Dobject *obj)
{
/* first point center */
/* Next point is radius */
gdouble *line_pnts;
gint seg_count = 0;
gint i = 0;
DobjPoints * center_pnt;
DobjPoints * radius_pnt;
gint16 shift_x;
gint16 shift_y;
gdouble ang_grid;
gdouble ang_loop;
gdouble radius;
gdouble offset_angle;
gdouble sp_cons;
gint loop;
GdkPoint last_pnt;
gint clock_wise = 1;
g_assert (obj != NULL);
center_pnt = obj->points;
if (!center_pnt || !center_pnt->next)
return; /* no-line */
/* Go around all the points drawing a line from one to the next */
radius_pnt = center_pnt->next; /* this defines the vetices */
/* Have center and radius - get lines */
shift_x = radius_pnt->pnt.x - center_pnt->pnt.x;
shift_y = radius_pnt->pnt.y - center_pnt->pnt.y;
radius = sqrt ((shift_x*shift_x) + (shift_y*shift_y));
clock_wise = obj->type_data / abs (obj->type_data);
offset_angle = atan2 (shift_y, shift_x);
if (offset_angle < 0)
offset_angle += 2*G_PI;
sp_cons = radius/(obj->type_data * 2 * G_PI + offset_angle);
/* Lines */
ang_grid = 2.0*G_PI/(gdouble)180;
/* count - */
seg_count = abs (obj->type_data * 180) + clock_wise*(gint)RINT (offset_angle/ang_grid);
line_pnts = g_new0 (gdouble, 2 * seg_count + 3);
for (loop = 0 ; loop <= seg_count; loop++)
{
gdouble lx, ly;
GdkPoint calc_pnt;
ang_loop = (gdouble)loop * ang_grid;
lx = sp_cons * ang_loop * cos (ang_loop)*clock_wise;
ly = sp_cons * ang_loop * sin (ang_loop);
calc_pnt.x = RINT (lx + center_pnt->pnt.x);
calc_pnt.y = RINT (ly + center_pnt->pnt.y);
/* Miss out duped pnts */
if (!loop)
{
if (calc_pnt.x == last_pnt.x && calc_pnt.y == last_pnt.y)
{
continue;
}
}
last_pnt.x = line_pnts[i++] = calc_pnt.x;
last_pnt.y = line_pnts[i++] = calc_pnt.y;
}
/* Reverse line if approp */
if (selvals.reverselines)
reverse_pairs_list (&line_pnts[0], i/2);
/* Scale before drawing */
if (selvals.scaletoimage)
scale_to_original_xy (&line_pnts[0], i/2);
else
scale_to_xy (&line_pnts[0], i/2);
/* One go */
if (selvals.painttype == PAINT_BRUSH_TYPE)
{
gfig_paint (selvals.brshtype,
gfig_drawable,
i, line_pnts);
}
else
{
gimp_free_select (gfig_image,
i, line_pnts,
selopt.type,
selopt.antia,
selopt.feather,
selopt.feather_radius);
}
g_free (line_pnts);
}
static Dobject *
d_copy_spiral (Dobject * obj)
{
Dobject *np;
#if DEBUG
printf ("Copy spiral\n");
#endif /* DEBUG */
if (!obj)
return (NULL);
g_assert (obj->type == SPIRAL);
np = d_new_spiral (obj->points->pnt.x, obj->points->pnt.y);
np->points->next = d_copy_dobjpoints (obj->points->next);
np->type_data = obj->type_data;
#if DEBUG
printf ("Done spiral copy\n");
#endif /* DEBUG */
return (np);
}
static Dobject *
d_new_spiral (gint x,
gint y)
{
Dobject *nobj;
DobjPoints *npnt;
/* Get new object and starting point */
/* Start point */
npnt = g_new0 (DobjPoints, 1);
#if DEBUG
printf ("New SPIRAL start at (%x,%x)\n", x, y);
#endif /* DEBUG */
npnt->pnt.x = x;
npnt->pnt.y = y;
nobj = g_new0 (Dobject, 1);
nobj->type = SPIRAL;
nobj->type_data = 4; /* Default to four turns */
nobj->points = npnt;
nobj->drawfunc = d_draw_spiral;
nobj->loadfunc = d_load_spiral;
nobj->savefunc = d_save_spiral;
nobj->paintfunc = d_paint_spiral;
nobj->copyfunc = d_copy_spiral;
return (nobj);
}
static void
d_update_spiral (GdkPoint *pnt)
{
DobjPoints *center_pnt, *edge_pnt;
gint saved_cnt_pnt = selvals.opts.showcontrol;
/* Undraw last one then draw new one */
center_pnt = obj_creating->points;
if (!center_pnt)
return; /* No points */
/* Leave the first pnt alone -
* Edge point defines "radius"
* Only undraw if already have edge point.
*/
/* Hack - turn off cnt points in draw routine
* Looking back over the other update routines I could
* use this trick again and cut down on code size!
*/
if ((edge_pnt = center_pnt->next))
{
/* Undraw */
draw_circle (&edge_pnt->pnt);
selvals.opts.showcontrol = 0;
d_draw_spiral (obj_creating);
edge_pnt->pnt.x = pnt->x;
edge_pnt->pnt.y = pnt->y;
}
else
{
/* Radius is a few pixels away */
/* First edge point */
d_pnt_add_line (obj_creating, pnt->x, pnt->y, -1);
edge_pnt = center_pnt->next;
}
/* draw it */
selvals.opts.showcontrol = 0;
d_draw_spiral (obj_creating);
selvals.opts.showcontrol = saved_cnt_pnt;
/* Realy draw the control points */
draw_circle (&edge_pnt->pnt);
}
/* first point is center
* next defines the radius
*/
static void
d_spiral_start (GdkPoint *pnt,
gint shift_down)
{
gint16 x, y;
/* First is center point */
obj_creating = d_new_spiral (x = pnt->x, y = pnt->y);
obj_creating->type_data = spiral_num_turns * ((spiral_toggle == 0) ? 1 : -1);
}
static void
d_spiral_end (GdkPoint *pnt,
gint shift_down)
{
draw_circle (pnt);
add_to_all_obj (current_obj, obj_creating);
obj_creating = NULL;
}
/* Stuff for bezier curves... */
static void
d_save_bezier (Dobject *obj,
FILE *to)
{
DobjPoints *spnt;
spnt = obj->points;
if (!spnt)
return; /* End-of-line */
fprintf (to, "<BEZIER>\n");
while (spnt)
{
fprintf (to, "%d %d\n",
spnt->pnt.x,
spnt->pnt.y);
spnt = spnt->next;
}
fprintf (to, "<EXTRA>\n");
fprintf (to, "%d\n</EXTRA>\n", obj->type_data);
fprintf (to, "</BEZIER>\n");
}
/* Load a bezier from the specified stream */
static Dobject *
d_load_bezier (FILE *from)
{
Dobject *new_obj = NULL;
gint xpnt;
gint ypnt;
gchar buf[MAX_LOAD_LINE];
#ifdef DEBUG
printf ("Load bezier called\n");
#endif /* DEBUG */
while (get_line (buf, MAX_LOAD_LINE, from, 0))
{
if (sscanf (buf, "%d %d", &xpnt, &ypnt) != 2)
{
/* Must be the end */
if (!strcmp ("<EXTRA>", buf))
{
gint nsides = 3;
/* Number of sides - data item */
if ( !new_obj)
{
g_message ("[%d] Internal load error while loading bezier "
"(extra area)", line_no);
return NULL;
}
get_line (buf, MAX_LOAD_LINE, from, 0);
if (sscanf (buf, "%d", &nsides) != 1)
{
g_message ("[%d] Internal load error while loading bezier "
"(extra area scanf)", line_no);
return NULL;
}
new_obj->type_data = nsides;
get_line (buf, MAX_LOAD_LINE, from, 0);
if (strcmp ("</EXTRA>", buf))
{
g_message ("[%d] Internal load error while loading bezier",
line_no);
return NULL;
}
/* Go around and read the last line */
continue;
}
else if (strcmp ("</BEZIER>", buf))
{
g_message ("[%d] Internal load error while loading bezier",
line_no);
return NULL;
}
return new_obj;
}
if (!new_obj)
new_obj = d_new_bezier (xpnt, ypnt);
else
d_pnt_add_line (new_obj, xpnt, ypnt, -1);
}
return new_obj;
}
#define FP_PNT_MAX 10
static int fp_pnt_cnt = 0;
static int fp_pnt_chunk = 0;
static gdouble *fp_pnt_pnts = NULL;
static void
fp_pnt_start (void)
{
fp_pnt_cnt = 0;
}
/* Add a line segment to collection array */
static void
fp_pnt_add (gdouble p1,
gdouble p2,
gdouble p3,
gdouble p4)
{
if (!fp_pnt_pnts)
{
fp_pnt_pnts = g_new0 (gdouble, FP_PNT_MAX);
fp_pnt_chunk = 1;
}
if (((fp_pnt_cnt + 4) / FP_PNT_MAX) >= fp_pnt_chunk)
{
/* more space pls */
fp_pnt_chunk++;
fp_pnt_pnts =
(gdouble *) g_realloc (fp_pnt_pnts,
sizeof (gdouble) * fp_pnt_chunk * FP_PNT_MAX);
}
fp_pnt_pnts[fp_pnt_cnt++] = p1;
fp_pnt_pnts[fp_pnt_cnt++] = p2;
fp_pnt_pnts[fp_pnt_cnt++] = p3;
fp_pnt_pnts[fp_pnt_cnt++] = p4;
}
static gdouble *
d_bz_get_array (gint *sz)
{
*sz = fp_pnt_cnt;
return fp_pnt_pnts;
}
static void
d_bz_line (void)
{
gint i, x0, y0, x1, y1;
g_assert ((fp_pnt_cnt % 4) == 0);
for (i = 0 ; i < fp_pnt_cnt; i += 4)
{
x0 = fp_pnt_pnts[i];
y0 = fp_pnt_pnts[i + 1];
x1 = fp_pnt_pnts[i + 2];
y1 = fp_pnt_pnts[i + 3];
if (drawing_pic)
{
gdk_draw_line (pic_preview->window,
pic_preview->style->black_gc,
adjust_pic_coords (x0, preview_width),
adjust_pic_coords (y0, preview_height),
adjust_pic_coords (x1, preview_width),
adjust_pic_coords (y1, preview_height));
}
else
{
gdk_draw_line (gfig_preview->window,
gfig_gc,
gfig_scale_x (x0),
gfig_scale_y (y0),
gfig_scale_x (x1),
gfig_scale_y (y1));
}
}
}
/* Return points to plot */
/* Terminate by point with DBL_MAX, DBL_MAX */
typedef gdouble (*fp_pnt)[2];
static void
DrawBezier (gdouble (*points)[2],
gint np,
gdouble mid,
gint depth)
{
gint i, j, x0 = 0, y0 = 0, x1, y1;
fp_pnt left;
fp_pnt right;
if (depth == 0) /* draw polyline */
{
for (i = 0; i < np; i++)
{
x1 = (int) points[i][0];
y1 = (int) points[i][1];
if (i > 0 && (x1 != x0 || y1 != y0))
{
/* Add pnts up */
fp_pnt_add ((gdouble) x0, (gdouble) y0,
(gdouble) x1, (gdouble) y1);
}
x0 = x1;
y0 = y1;
}
}
else /* subdivide control points at mid */
{
left = (fp_pnt) g_new (gdouble, np * 2);
right = (fp_pnt) g_new (gdouble, np * 2);
for (i = 0; i < np; i++)
{
right[i][0] = points[i][0];
right[i][1] = points[i][1];
}
left[0][0] = right[0][0];
left[0][1] = right[0][1];
for (j = np - 1; j >= 1; j--)
{
for (i = 0; i < j; i++)
{
right[i][0] = (1 - mid) * right[i][0] + mid * right[i + 1][0];
right[i][1] = (1 - mid) * right[i][1] + mid * right[i + 1][1];
}
left[np - j][0] = right[0][0];
left[np - j][1] = right[0][1];
}
if (depth > 0)
{
DrawBezier (left, np, mid, depth - 1);
DrawBezier (right, np, mid, depth - 1);
g_free (left);
g_free (right);
}
}
}
static void
d_draw_bezier (Dobject *obj)
{
DobjPoints * spnt;
gint seg_count = 0;
gint i = 0;
gdouble (*line_pnts)[2];
spnt = obj->points;
/* First count the number of points */
for (spnt = obj->points; spnt; spnt = spnt->next)
seg_count++;
if (!seg_count)
return; /* no-line */
line_pnts = (fp_pnt) g_new0 (gdouble, 2 * seg_count + 1);
/* Go around all the points drawing a line from one to the next */
for (spnt = obj->points; spnt; spnt = spnt->next)
{
draw_sqr (&spnt->pnt);
line_pnts[i][0] = spnt->pnt.x;
line_pnts[i++][1] = spnt->pnt.y;
}
/* Generate an array of doubles which are the control points */
if (!drawing_pic && bezier_line_frame && tmp_bezier)
{
fp_pnt_start ();
DrawBezier (line_pnts, seg_count, 0.5, 0);
d_bz_line ();
}
fp_pnt_start ();
DrawBezier (line_pnts, seg_count, 0.5, 3);
d_bz_line ();
/*bezier4 (line_pnts, seg_count, 20);*/
g_free (line_pnts);
}
static void
d_paint_bezier (Dobject *obj)
{
gdouble *line_pnts;
gdouble (*bz_line_pnts)[2];
DobjPoints *spnt;
gint seg_count = 0;
gint i = 0;
/* First count the number of points */
for (spnt = obj->points; spnt; spnt = spnt->next)
seg_count++;
if (!seg_count)
return; /* no-line */
bz_line_pnts = (fp_pnt) g_new0 (gdouble, 2 * seg_count + 1);
/* Go around all the points drawing a line from one to the next */
for (spnt = obj->points; spnt; spnt = spnt->next)
{
bz_line_pnts[i][0] = spnt->pnt.x;
bz_line_pnts[i++][1] = spnt->pnt.y;
}
fp_pnt_start ();
DrawBezier (bz_line_pnts, seg_count, 0.5, 5);
line_pnts = d_bz_get_array (&i);
/* Reverse line if approp */
if (selvals.reverselines)
reverse_pairs_list (&line_pnts[0], i / 2);
/* Scale before drawing */
if (selvals.scaletoimage)
scale_to_original_xy (&line_pnts[0], i / 2);
else
scale_to_xy (&line_pnts[0], i / 2);
/* One go */
if (selvals.painttype == PAINT_BRUSH_TYPE)
{
gfig_paint (selvals.brshtype,
gfig_drawable,
i, line_pnts);
}
else
{
gimp_free_select (gfig_image,
i, line_pnts,
selopt.type,
selopt.antia,
selopt.feather,
selopt.feather_radius);
}
g_free (bz_line_pnts);
/* Don't free line_pnts - may need again */
}
static Dobject *
d_copy_bezier (Dobject * obj)
{
Dobject *np;
#if DEBUG
printf ("Copy bezier\n");
#endif /* DEBUG */
if (!obj)
return (NULL);
g_assert (obj->type == BEZIER);
np = d_new_bezier (obj->points->pnt.x, obj->points->pnt.y);
np->points->next = d_copy_dobjpoints (obj->points->next);
np->type_data = obj->type_data;
#if DEBUG
printf ("Done bezier copy\n");
#endif /* DEBUG */
return np;
}
static Dobject *
d_new_bezier (gint x, gint y)
{
Dobject *nobj;
DobjPoints *npnt;
/* Get new object and starting point */
/* Start point */
npnt = g_new0 (DobjPoints, 1);
#if DEBUG
printf ("New BEZIER start at (%x,%x)\n", x, y);
#endif /* DEBUG */
npnt->pnt.x = x;
npnt->pnt.y = y;
nobj = g_new0 (Dobject, 1);
nobj->type = BEZIER;
nobj->type_data = 4; /* Default to four turns */
nobj->points = npnt;
nobj->drawfunc = d_draw_bezier;
nobj->loadfunc = d_load_bezier;
nobj->savefunc = d_save_bezier;
nobj->paintfunc = d_paint_bezier;
nobj->copyfunc = d_copy_bezier;
return nobj;
}
static void
d_update_bezier (GdkPoint *pnt)
{
DobjPoints *s_pnt, *l_pnt;
gint saved_cnt_pnt = selvals.opts.showcontrol;
g_assert (tmp_bezier != NULL);
/* Undraw last one then draw new one */
s_pnt = tmp_bezier->points;
if (!s_pnt)
return; /* No points */
/* Hack - turn off cnt points in draw routine
*/
if ((l_pnt = s_pnt->next))
{
/* Undraw */
while (l_pnt->next)
{
l_pnt = l_pnt->next;
}
draw_circle (&l_pnt->pnt);
selvals.opts.showcontrol = 0;
d_draw_bezier (tmp_bezier);
l_pnt->pnt.x = pnt->x;
l_pnt->pnt.y = pnt->y;
}
else
{
/* Radius is a few pixels away */
/* First edge point */
d_pnt_add_line (tmp_bezier, pnt->x, pnt->y,-1);
l_pnt = s_pnt->next;
}
/* draw it */
selvals.opts.showcontrol = 0;
d_draw_bezier (tmp_bezier);
selvals.opts.showcontrol = saved_cnt_pnt;
/* Realy draw the control points */
draw_circle (&l_pnt->pnt);
}
/* first point is center
* next defines the radius
*/
static void
d_bezier_start (GdkPoint *pnt, gint shift_down)
{
gint16 x, y;
/* First is center point */
if (!tmp_bezier)
{
/* New curve */
tmp_bezier = obj_creating = d_new_bezier (x = pnt->x, y = pnt->y);
}
}
static void
d_bezier_end (GdkPoint *pnt, gint shift_down)
{
DobjPoints *l_pnt;
if (!tmp_bezier)
{
tmp_bezier = obj_creating;
}
l_pnt = tmp_bezier->points->next;
if (!l_pnt)
return;
if (shift_down)
{
/* Undraw circle on last pnt */
while (l_pnt->next)
{
l_pnt = l_pnt->next;
}
if (l_pnt)
{
draw_circle (&l_pnt->pnt);
draw_sqr (&l_pnt->pnt);
if (bezier_closed)
{
gint tmp_frame = bezier_line_frame;
/* if closed then add first point */
d_draw_bezier (tmp_bezier);
d_pnt_add_line (tmp_bezier,
tmp_bezier->points->pnt.x,
tmp_bezier->points->pnt.y,-1);
/* Final has no frame */
bezier_line_frame = 0; /* False */
d_draw_bezier (tmp_bezier);
bezier_line_frame = tmp_frame; /* What is was */
}
else if (bezier_line_frame)
{
d_draw_bezier (tmp_bezier);
bezier_line_frame = 0; /* False */
d_draw_bezier (tmp_bezier);
bezier_line_frame = 1; /* What is was */
}
add_to_all_obj (current_obj, obj_creating);
}
/* small mem leak if !l_pnt ? */
tmp_bezier = NULL;
obj_creating = NULL;
}
else
{
if (!tmp_bezier->points->next)
{
draw_circle (&tmp_bezier->points->pnt);
draw_sqr (&tmp_bezier->points->pnt);
}
d_draw_bezier (tmp_bezier);
d_pnt_add_line (tmp_bezier, pnt->x, pnt->y,-1);
d_draw_bezier (tmp_bezier);
}
}
/* copy objs */
static DAllObjs *
copy_all_objs (DAllObjs *objs)
{
DAllObjs *nobj;
DAllObjs *new_all_objs = NULL;
DAllObjs *ret = NULL;
while (objs)
{
nobj = g_new0 (DAllObjs, 1);
if (!ret)
{
ret = new_all_objs = nobj;
}
else
{
new_all_objs->next = nobj;
new_all_objs = nobj;
}
nobj->obj = (Dobject *) objs->obj->copyfunc (objs->obj);
objs = objs->next;
}
return ret;
}
/* Screen refresh */
static void
draw_one_obj (Dobject * obj)
{
obj->drawfunc (obj);
}
static void
draw_objects (DAllObjs *objs,
gint show_single)
{
/* Show_single - only one object to draw Unless shift
* is down in which case show all.
*/
gint count = 0;
while (objs)
{
if (!show_single || count == obj_show_single || obj_show_single == -1)
draw_one_obj (objs->obj);
objs = objs->next;
count++;
}
}
static void
prepend_to_all_obj (GFigObj *fobj,
DAllObjs *nobj)
{
DAllObjs *cobj;
setup_undo (); /* Remember ME */
if (!fobj->obj_list)
{
fobj->obj_list = nobj;
return;
}
cobj = fobj->obj_list;
while (cobj->next)
{
cobj = cobj->next;
}
cobj->next = nobj;
}
static void
add_to_all_obj (GFigObj *fobj,
Dobject *obj)
{
DAllObjs *nobj;
nobj = g_new0 (DAllObjs, 1);
nobj->obj = obj;
if (need_to_scale)
scale_obj_points (obj->points, scale_x_factor, scale_y_factor);
prepend_to_all_obj (fobj, nobj);
}
static void
object_operation_start (GdkPoint *pnt,
gint shift_down)
{
Dobject *new_obj;
/* Find point in given object list */
operation_obj = get_nearest_objs (current_obj, pnt);
/* Special case if shift down && move obj then moving all objs */
if (shift_down && selvals.otype == MOVE_OBJ)
{
move_all_pnt = g_malloc0 (sizeof (*move_all_pnt));
*move_all_pnt = *pnt; /* Structure copy */
setup_undo ();
return;
}
if (!operation_obj)
return;/* None to work on */
setup_undo ();
switch (selvals.otype)
{
case MOVE_OBJ:
if (operation_obj->type == BEZIER)
{
d_draw_bezier (operation_obj);
tmp_bezier = operation_obj;
d_draw_bezier (operation_obj);
}
break;
case MOVE_POINT:
if (operation_obj->type == BEZIER)
{
d_draw_bezier (operation_obj);
tmp_bezier = operation_obj;
d_draw_bezier (operation_obj);
}
/* If shift is down the break into sep lines */
if ((operation_obj->type == POLY
|| operation_obj->type == STAR)
&& shift_down)
{
switch (operation_obj->type)
{
case POLY:
d_poly2lines (operation_obj);
break;
case STAR:
d_star2lines (operation_obj);
break;
default:
break;
}
/* Re calc which object point we are lookin at */
scan_obj_points (operation_obj->points, pnt);
}
break;
case COPY_OBJ:
/* Copy the "operation object" */
/* Then bung us into "copy/move" mode */
#ifdef DEBUG
printf ("In copy obj\n");
#endif /* DEBUG */
new_obj = (Dobject *) operation_obj->copyfunc (operation_obj);
if (new_obj)
{
scan_obj_points (new_obj->points, pnt);
add_to_all_obj (current_obj, new_obj);
operation_obj = new_obj;
selvals.otype = MOVE_COPY_OBJ;
new_obj->drawfunc (new_obj);
}
break;
case DEL_OBJ:
remove_obj_from_list (current_obj, operation_obj);
break;
case MOVE_COPY_OBJ: /* Never when button down */
default:
g_warning ("Internal error selvals.otype object operation start");
break;
}
}
static void
object_operation_end (GdkPoint *pnt,
gint shift_down)
{
if (selvals.otype != DEL_OBJ && operation_obj && operation_obj->type == BEZIER)
{
d_draw_bezier (operation_obj);
tmp_bezier = NULL; /* use as switch */
d_draw_bezier (operation_obj);
}
operation_obj = NULL;
if (move_all_pnt)
{
g_free (move_all_pnt);
move_all_pnt = 0;
}
/* Special case - if copying mode MUST be copy when button up received */
if (selvals.otype == MOVE_COPY_OBJ)
selvals.otype = COPY_OBJ;
}
/* Move object around */
static void
object_operation (GdkPoint *to_pnt,
gint shift_down)
{
/* Must do diffent things depending on object type */
/* but must have object to operate on! */
/* Special case - if shift own and move_obj then move ALL objects */
if (move_all_pnt && shift_down && selvals.otype == MOVE_OBJ)
{
do_move_all_obj (to_pnt);
return;
}
if (!operation_obj)
return;
switch (selvals.otype)
{
case MOVE_OBJ:
case MOVE_COPY_OBJ:
switch (operation_obj->type)
{
case LINE:
case CIRCLE:
case ELLIPSE:
case POLY:
case ARC:
case STAR:
case SPIRAL:
case BEZIER:
do_move_obj (operation_obj, to_pnt);
break;
default:
/* Internal error */
g_warning ("Internal error in operation_obj->type");
break;
}
break;
case MOVE_POINT:
switch (operation_obj->type)
{
case LINE:
case CIRCLE:
case ELLIPSE:
case POLY:
case ARC:
case STAR:
case SPIRAL:
case BEZIER:
do_move_obj_pnt (operation_obj, to_pnt);
break;
default:
/* Internal error */
g_warning ("Internal error in operation_obj->type");
break;
}
break;
case DEL_OBJ:
break;
case COPY_OBJ: /* Should have been changed to MOVE_COPY_OBJ */
default:
g_warning ("Internal error selvals.otype");
break;
}
}
/* First button press -- start drawing object */
static void
object_start (GdkPoint *pnt,
gint shift_down)
{
/* start for the current object */
if (!selvals.scaletoimage)
{
need_to_scale = 1;
selvals.scaletoimage = 1;
}
else
{
need_to_scale = 0;
}
switch (selvals.otype)
{
case LINE:
/* Shift means we are still drawing */
if (!shift_down || !obj_creating)
draw_sqr (pnt);
d_line_start (pnt, shift_down);
break;
case CIRCLE:
draw_sqr (pnt);
d_circle_start (pnt, shift_down);
break;
case ELLIPSE:
draw_sqr (pnt);
d_ellipse_start (pnt, shift_down);
break;
case POLY:
draw_sqr (pnt);
d_poly_start (pnt, shift_down);
break;
case ARC:
d_arc_start (pnt, shift_down);
break;
case STAR:
draw_sqr (pnt);
d_star_start (pnt, shift_down);
break;
case SPIRAL:
draw_sqr (pnt);
d_spiral_start (pnt, shift_down);
break;
case BEZIER:
if (!tmp_bezier)
draw_sqr (pnt);
d_bezier_start (pnt, shift_down);
break;
default:
/* Internal error */
break;
}
}
/* Real object now !*/
static void
object_end (GdkPoint *pnt,
gint shift_down)
{
/* end for the current object */
/* Add onto global object list */
/* If shift is down may carry on drawing */
switch (selvals.otype)
{
case LINE:
d_line_end (pnt, shift_down);
draw_sqr (pnt);
break;
case CIRCLE:
draw_sqr (pnt);
d_circle_end (pnt, shift_down);
break;
case ELLIPSE:
draw_sqr (pnt);
d_ellipse_end (pnt, shift_down);
break;
case POLY:
draw_sqr (pnt);
d_poly_end (pnt, shift_down);
break;
case STAR:
draw_sqr (pnt);
d_star_end (pnt, shift_down);
break;
case ARC:
draw_sqr (pnt);
d_arc_end (pnt, shift_down);
break;
case SPIRAL:
draw_sqr (pnt);
d_spiral_end (pnt, shift_down);
break;
case BEZIER:
d_bezier_end (pnt, shift_down);
break;
default:
/* Internal error */
break;
}
if (need_to_scale)
{
need_to_scale = 0;
selvals.scaletoimage = 0;
}
}
static void
object_update (GdkPoint *pnt)
{
/* update for the current object */
/* New position xy */
switch (selvals.otype)
{
case LINE:
d_update_line (pnt);
break;
case CIRCLE:
d_update_circle (pnt);
break;
case ELLIPSE:
d_update_ellipse (pnt);
break;
case POLY:
d_update_poly (pnt);
break;
case STAR:
d_update_star (pnt);
break;
case ARC:
d_update_arc (pnt);
break;
case SPIRAL:
d_update_spiral (pnt);
break;
case BEZIER:
d_update_bezier (pnt);
break;
default:
/* Internal error */
break;
}
}
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