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Gimp/app/tools/gimprectangleselecttool.c
Michael Natterer d51c50820f Bug 496772 – Position shown in the statusbar needs more precision (for 
2008-08-20  Michael Natterer  <mitch@gimp.org>

	Bug 496772 – Position shown in the statusbar needs more
	precision (for some tools)

	* app/display/display-enums.[ch]: add enum GimpCursorPrecision
	which can be one of { PIXEL_CENTER, PIXEL_BORDER, SUBPIXEL }.

	* app/display/gimpdisplayshell-cursor.[ch]: add "precision"
	parameter to gimp_display_shell_update_cursor() and pass it
	on to the statusbar.

	* app/display/gimpstatusbar.[ch]: add "precision" parameters to
	the cursor coordinates APIs, offset the passed coords accordingly
	and display them with one decimal point if SUBPIXEL is requested
	and the display's unit is PIXEL. Keep a second floating-point
	format string around at any time.

	* app/tools/gimptoolcontrol.[ch]: add a "precision" member and API
	so tools can configure the precision they need. Defalt to
	PIXEL_CENTER since that's right for almost all tools.

	* app/display/gimpdisplayshell-callbacks.c: pass the tool's
	precision to gimp_display_shell_update_cursor().

	* app/tools/gimptool.[ch]: add "precision" parameter to
	gimp_tool_push_status_coords() and pass it on to the statusbar.

	* app/tools/gimpaligntool.c
	* app/tools/gimpblendtool.c
	* app/tools/gimpcolortool.c
	* app/tools/gimpcroptool.c
	* app/tools/gimpeditselectiontool.c
	* app/tools/gimpfliptool.c
	* app/tools/gimpfreeselecttool.c
	* app/tools/gimpmovetool.c
	* app/tools/gimppainttool.c
	* app/tools/gimpperspectiveclonetool.c
	* app/tools/gimprectangleselecttool.c
	* app/tools/gimprectangletool.c
	* app/tools/gimptransformtool.c
	* app/tools/gimpvectortool.c: set precision in init() where
	needed. Adjust the precision in the fly when needed, e.g. while
	moving guides or when toggling hard-edge on paint tools. Also pass
	an appropriate precision to gimp_tool_push_status_coords(), which
	is not always the tool's precision as used for cursor display.


svn path=/trunk/; revision=26681
2008-08-20 16:22:09 +00:00

938 lines
36 KiB
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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "base/boundary.h"
#include "core/gimpchannel.h"
#include "core/gimpchannel-select.h"
#include "core/gimplayer-floating-sel.h"
#include "core/gimpimage.h"
#include "core/gimpimage-undo.h"
#include "core/gimppickable.h"
#include "core/gimp-utils.h"
#include "core/gimpundostack.h"
#include "widgets/gimpdialogfactory.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpviewabledialog.h"
#include "widgets/gimpwidgets-utils.h"
#include "display/gimpdisplay.h"
#include "display/gimpdisplayshell.h"
#include "display/gimpdisplayshell-transform.h"
#include "display/gimpdisplayshell-appearance.h"
#include "gimpeditselectiontool.h"
#include "gimpselectiontool.h"
#include "gimpselectionoptions.h"
#include "gimprectangletool.h"
#include "gimprectangleoptions.h"
#include "gimprectangleselecttool.h"
#include "gimprectangleselectoptions.h"
#include "gimptoolcontrol.h"
#include "gimp-intl.h"
typedef struct GimpRectangleSelectToolPrivate
{
GimpChannelOps operation; /* remember for use when modifying */
gboolean use_saved_op; /* use operation or get from options */
gboolean saved_show_selection; /* used to remember existing value */
GimpUndo *undo;
GimpUndo *redo;
gboolean round_corners;
gdouble corner_radius;
gdouble press_x;
gdouble press_y;
} GimpRectangleSelectToolPrivate;
#define GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE(obj) \
((GimpRectangleSelectToolPrivate *) ((GimpRectangleSelectTool *) (obj))->priv)
static void gimp_rectangle_select_tool_rectangle_tool_iface_init (GimpRectangleToolInterface *iface);
static GObject *gimp_rectangle_select_tool_constructor (GType type,
guint n_params,
GObjectConstructParam *params);
static void gimp_rectangle_select_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display);
static void gimp_rectangle_select_tool_button_press (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display);
static void gimp_rectangle_select_tool_button_release (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display);
static void gimp_rectangle_select_tool_active_modifier_key
(GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *display);
static gboolean gimp_rectangle_select_tool_key_press (GimpTool *tool,
GdkEventKey *kevent,
GimpDisplay *display);
static void gimp_rectangle_select_tool_oper_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
gboolean proximity,
GimpDisplay *display);
static void gimp_rectangle_select_tool_cursor_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display);
static void gimp_rectangle_select_tool_draw (GimpDrawTool *draw_tool);
static gboolean gimp_rectangle_select_tool_select (GimpRectangleTool *rect_tool,
gint x,
gint y,
gint w,
gint h);
static gboolean gimp_rectangle_select_tool_execute (GimpRectangleTool *rect_tool,
gint x,
gint y,
gint w,
gint h);
static void gimp_rectangle_select_tool_cancel (GimpRectangleTool *rect_tool);
static gboolean gimp_rectangle_select_tool_rectangle_change_complete
(GimpRectangleTool *rect_tool);
static void gimp_rectangle_select_tool_real_select (GimpRectangleSelectTool *rect_sel_tool,
GimpChannelOps operation,
gint x,
gint y,
gint w,
gint h);
static void gimp_rectangle_select_tool_update_option_defaults
(GimpRectangleSelectTool *rect_sel_tool,
gboolean ignore_pending);
static void gimp_rectangle_select_tool_round_corners_notify
(GimpRectangleSelectOptions *options,
GParamSpec *pspec,
GimpRectangleSelectTool *rect_sel_tool);
G_DEFINE_TYPE_WITH_CODE (GimpRectangleSelectTool, gimp_rectangle_select_tool,
GIMP_TYPE_SELECTION_TOOL,
G_IMPLEMENT_INTERFACE (GIMP_TYPE_RECTANGLE_TOOL,
gimp_rectangle_select_tool_rectangle_tool_iface_init))
#define parent_class gimp_rectangle_select_tool_parent_class
void
gimp_rectangle_select_tool_register (GimpToolRegisterCallback callback,
gpointer data)
{
(* callback) (GIMP_TYPE_RECTANGLE_SELECT_TOOL,
GIMP_TYPE_RECTANGLE_SELECT_OPTIONS,
gimp_rectangle_select_options_gui,
0,
"gimp-rect-select-tool",
_("Rectangle Select"),
_("Rectangle Select Tool: Select a rectangular region"),
N_("_Rectangle Select"), "R",
NULL, GIMP_HELP_TOOL_RECT_SELECT,
GIMP_STOCK_TOOL_RECT_SELECT,
data);
}
static void
gimp_rectangle_select_tool_class_init (GimpRectangleSelectToolClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
GimpDrawToolClass *draw_tool_class = GIMP_DRAW_TOOL_CLASS (klass);
g_type_class_add_private (klass, sizeof (GimpRectangleSelectToolPrivate));
object_class->constructor = gimp_rectangle_select_tool_constructor;
object_class->set_property = gimp_rectangle_tool_set_property;
object_class->get_property = gimp_rectangle_tool_get_property;
gimp_rectangle_tool_install_properties (object_class);
tool_class->control = gimp_rectangle_select_tool_control;
tool_class->button_press = gimp_rectangle_select_tool_button_press;
tool_class->button_release = gimp_rectangle_select_tool_button_release;
tool_class->motion = gimp_rectangle_tool_motion;
tool_class->key_press = gimp_rectangle_select_tool_key_press;
tool_class->active_modifier_key = gimp_rectangle_select_tool_active_modifier_key;
tool_class->oper_update = gimp_rectangle_select_tool_oper_update;
tool_class->cursor_update = gimp_rectangle_select_tool_cursor_update;
draw_tool_class->draw = gimp_rectangle_select_tool_draw;
klass->select = gimp_rectangle_select_tool_real_select;
}
static void
gimp_rectangle_select_tool_rectangle_tool_iface_init (GimpRectangleToolInterface *iface)
{
iface->execute = gimp_rectangle_select_tool_execute;
iface->cancel = gimp_rectangle_select_tool_cancel;
iface->rectangle_change_complete = gimp_rectangle_select_tool_rectangle_change_complete;
}
static void
gimp_rectangle_select_tool_init (GimpRectangleSelectTool *rect_sel_tool)
{
GimpTool *tool = GIMP_TOOL (rect_sel_tool);
GimpRectangleSelectToolPrivate *priv;
gimp_rectangle_tool_init (GIMP_RECTANGLE_TOOL (rect_sel_tool));
rect_sel_tool->priv = G_TYPE_INSTANCE_GET_PRIVATE (rect_sel_tool,
GIMP_TYPE_RECTANGLE_SELECT_TOOL,
GimpRectangleSelectToolPrivate);
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
gimp_tool_control_set_wants_click (tool->control, TRUE);
gimp_tool_control_set_precision (tool->control,
GIMP_CURSOR_PRECISION_PIXEL_BORDER);
gimp_tool_control_set_tool_cursor (tool->control,
GIMP_TOOL_CURSOR_RECT_SELECT);
gimp_tool_control_set_dirty_mask (tool->control,
GIMP_DIRTY_IMAGE_SIZE |
GIMP_DIRTY_SELECTION);
priv->undo = NULL;
priv->redo = NULL;
priv->press_x = 0.0;
priv->press_y = 0.0;
}
static GObject *
gimp_rectangle_select_tool_constructor (GType type,
guint n_params,
GObjectConstructParam *params)
{
GObject *object;
GimpRectangleSelectTool *rect_sel_tool;
GimpRectangleSelectOptions *options;
GimpRectangleSelectToolPrivate *priv;
object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
gimp_rectangle_tool_constructor (object);
rect_sel_tool = GIMP_RECTANGLE_SELECT_TOOL (object);
options = GIMP_RECTANGLE_SELECT_TOOL_GET_OPTIONS (rect_sel_tool);
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
priv->round_corners = options->round_corners;
priv->corner_radius = options->corner_radius;
g_signal_connect_object (options, "notify::round-corners",
G_CALLBACK (gimp_rectangle_select_tool_round_corners_notify),
object, 0);
g_signal_connect_object (options, "notify::corner-radius",
G_CALLBACK (gimp_rectangle_select_tool_round_corners_notify),
object, 0);
gimp_rectangle_select_tool_update_option_defaults (rect_sel_tool, FALSE);
return object;
}
static void
gimp_rectangle_select_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display)
{
gimp_rectangle_tool_control (tool, action, display);
GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
}
static void
gimp_rectangle_select_tool_draw (GimpDrawTool *draw_tool)
{
GimpRectangleSelectTool *rect_sel_tool;
GimpRectangleSelectToolPrivate *priv;
rect_sel_tool = GIMP_RECTANGLE_SELECT_TOOL (draw_tool);
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
gimp_rectangle_tool_draw (draw_tool);
if (priv->round_corners)
{
gint x1, y1, x2, y2;
gdouble radius;
gint square_size;
g_object_get (rect_sel_tool,
"x1", &x1,
"y1", &y1,
"x2", &x2,
"y2", &y2,
NULL);
radius = MIN (priv->corner_radius,
MIN ((x2 - x1) / 2.0, (y2 - y1) / 2.0));
square_size = (int) (radius * 2);
gimp_draw_tool_draw_arc (draw_tool, FALSE,
x1, y1,
square_size, square_size,
90 * 64, 90 * 64,
FALSE);
gimp_draw_tool_draw_arc (draw_tool, FALSE,
x2 - square_size, y1,
square_size, square_size,
0, 90 * 64,
FALSE);
gimp_draw_tool_draw_arc (draw_tool, FALSE,
x2 - square_size, y2 - square_size,
square_size, square_size,
270 * 64, 90 * 64,
FALSE);
gimp_draw_tool_draw_arc (draw_tool, FALSE,
x1, y2 - square_size,
square_size, square_size,
180 * 64, 90 * 64,
FALSE);
}
}
static gboolean
gimp_rectangle_select_tool_delegate_button_press (GimpRectangleSelectTool *rect_sel_tool,
GimpCoords *coords,
GimpDisplay *display)
{
GimpTool *tool = GIMP_TOOL (rect_sel_tool);
gboolean button_press_delegated = FALSE;
GimpDisplay *old_display = tool->display;
tool->display = display;
if (! gimp_tool_control_is_active (tool->control))
{
gimp_tool_control_activate (tool->control);
}
button_press_delegated
= gimp_selection_tool_start_edit (GIMP_SELECTION_TOOL (tool),
coords);
if (gimp_tool_control_is_active (tool->control))
{
gimp_tool_control_halt (tool->control);
}
tool->display = old_display;
return button_press_delegated;
}
static void
gimp_rectangle_select_tool_button_press (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display)
{
GimpRectangleTool *rectangle;
GimpRectangleSelectTool *rect_sel_tool;
GimpDisplayShell *shell;
GimpRectangleSelectToolPrivate *priv;
GimpRectangleFunction function;
rectangle = GIMP_RECTANGLE_TOOL (tool);
rect_sel_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
shell = GIMP_DISPLAY_SHELL (display->shell);
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
if (tool->display && display != tool->display)
{
gimp_rectangle_tool_cancel (GIMP_RECTANGLE_TOOL (tool));
}
if (gimp_rectangle_select_tool_delegate_button_press (rect_sel_tool,
coords,
display))
{
/* In some cases we want to finnish the rectangle select tool
* and hand over responsability to the selection tool
*/
gimp_rectangle_tool_execute (rectangle);
gimp_rectangle_tool_control (tool, GIMP_TOOL_ACTION_HALT, display);
gimp_rectangle_select_tool_update_option_defaults (rect_sel_tool,
TRUE);
return;
}
function = gimp_rectangle_tool_get_function (rectangle);
priv->saved_show_selection = gimp_display_shell_get_show_selection (shell);
/* if the shift or ctrl keys are down, we don't want to adjust, we
* want to create a new rectangle, regardless of pointer loc */
if (state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))
gimp_rectangle_tool_set_function (rectangle, GIMP_RECTANGLE_TOOL_CREATING);
gimp_rectangle_tool_button_press (tool, coords, time, state, display);
priv->press_x = coords->x;
priv->press_y = coords->y;
/* if we have an existing rectangle in the current display, then
* we have already "executed", and need to undo at this point,
* unless the user has done something in the meantime
*/
function = gimp_rectangle_tool_get_function (rectangle);
if (function == GIMP_RECTANGLE_TOOL_CREATING)
{
priv->use_saved_op = FALSE;
}
else
{
GimpSelectionOptions *options = GIMP_SELECTION_TOOL_GET_OPTIONS (tool);
GimpImage *image = tool->display->image;
GimpUndo *undo;
GimpChannelOps operation;
if (priv->use_saved_op)
operation = priv->operation;
else
operation = options->operation;
undo = gimp_undo_stack_peek (image->undo_stack);
if (undo && priv->undo == undo)
{
/* prevent this change from halting the tool */
gimp_tool_control_set_preserve (tool->control, TRUE);
gimp_image_undo (image);
gimp_tool_control_set_preserve (tool->control, FALSE);
/* we will need to redo if the user cancels or executes */
priv->redo = gimp_undo_stack_peek (image->redo_stack);
}
/* if the operation is "Replace", turn off the marching ants,
because they are confusing */
if (operation == GIMP_CHANNEL_OP_REPLACE)
gimp_display_shell_set_show_selection (shell, FALSE);
}
priv->undo = NULL;
}
static void
gimp_rectangle_select_tool_button_release (GimpTool *tool,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display)
{
GimpRectangleSelectTool *rect_sel_tool;
GimpRectangleSelectToolPrivate *priv;
rect_sel_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
gimp_tool_pop_status (tool, display);
gimp_display_shell_set_show_selection (GIMP_DISPLAY_SHELL (display->shell),
priv->saved_show_selection);
/*
* if the user has not moved the mouse, we need to redo the operation
* that was undone on button press.
*/
if (release_type == GIMP_BUTTON_RELEASE_CLICK)
{
GimpImage *image = tool->display->image;
GimpUndo *redo = gimp_undo_stack_peek (image->redo_stack);
if (redo && priv->redo == redo)
{
/* prevent this from halting the tool */
gimp_tool_control_set_preserve (tool->control, TRUE);
gimp_image_redo (image);
priv->redo = NULL;
gimp_tool_control_set_preserve (tool->control, FALSE);
}
}
gimp_rectangle_tool_button_release (tool, coords, time, state, release_type,
display);
if (release_type == GIMP_BUTTON_RELEASE_CANCEL)
{
if (priv->redo)
{
/* prevent this from halting the tool */
gimp_tool_control_set_preserve (tool->control, TRUE);
gimp_image_redo (tool->display->image);
gimp_tool_control_set_preserve (tool->control, FALSE);
}
priv->use_saved_op = TRUE; /* is this correct? */
}
priv->redo = NULL;
}
static void
gimp_rectangle_select_tool_active_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *display)
{
GIMP_TOOL_CLASS (parent_class)->active_modifier_key (tool, key, press, state,
display);
gimp_rectangle_tool_active_modifier_key (tool, key, press, state, display);
}
static gboolean
gimp_rectangle_select_tool_key_press (GimpTool *tool,
GdkEventKey *kevent,
GimpDisplay *display)
{
return (gimp_rectangle_tool_key_press (tool, kevent, display) ||
gimp_edit_selection_tool_key_press (tool, kevent, display));
}
static void
gimp_rectangle_select_tool_oper_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
gboolean proximity,
GimpDisplay *display)
{
GimpRectangleFunction function;
gimp_rectangle_tool_oper_update (tool, coords, state, proximity, display);
function = gimp_rectangle_tool_get_function (GIMP_RECTANGLE_TOOL (tool));
GIMP_TOOL_CLASS (parent_class)->oper_update (tool, coords, state, proximity,
display);
}
static void
gimp_rectangle_select_tool_cursor_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display)
{
gimp_rectangle_tool_cursor_update (tool, coords, state, display);
/* override the previous if shift or ctrl are down */
if (state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK))
gimp_tool_control_set_cursor (tool->control, GIMP_CURSOR_CROSSHAIR_SMALL);
GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
}
static gboolean
gimp_rectangle_select_tool_select (GimpRectangleTool *rectangle,
gint x,
gint y,
gint w,
gint h)
{
GimpTool *tool;
GimpRectangleSelectTool *rect_sel_tool;
GimpSelectionOptions *options;
GimpImage *image;
GimpRectangleSelectToolPrivate *priv;
gboolean rectangle_exists;
GimpChannelOps operation;
tool = GIMP_TOOL (rectangle);
rect_sel_tool = GIMP_RECTANGLE_SELECT_TOOL (rectangle);
options = GIMP_SELECTION_TOOL_GET_OPTIONS (tool);
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
image = tool->display->image;
gimp_tool_pop_status (tool, tool->display);
rectangle_exists = (x <= gimp_image_get_width (image) &&
y <= gimp_image_get_height (image) &&
x + w >= 0 &&
y + h >= 0 &&
w > 0 &&
h > 0);
if (priv->use_saved_op)
operation = priv->operation;
else
operation = options->operation;
/* if rectangle exists, turn it into a selection */
if (rectangle_exists)
GIMP_RECTANGLE_SELECT_TOOL_GET_CLASS (rect_sel_tool)->select (rect_sel_tool,
operation,
x, y, w, h);
return rectangle_exists;
}
static void
gimp_rectangle_select_tool_real_select (GimpRectangleSelectTool *rect_sel_tool,
GimpChannelOps operation,
gint x,
gint y,
gint w,
gint h)
{
GimpTool *tool = GIMP_TOOL (rect_sel_tool);
GimpSelectionOptions *options = GIMP_SELECTION_TOOL_GET_OPTIONS (tool);
GimpRectangleSelectOptions *rect_select_options;
GimpChannel *channel;
rect_select_options = GIMP_RECTANGLE_SELECT_TOOL_GET_OPTIONS (tool);
channel = gimp_image_get_mask (tool->display->image);
if (rect_select_options->round_corners)
{
/* To prevent elliptification of the rectangle,
* we must cap the corner radius.
*/
gdouble max = MIN (w / 2.0, h / 2.0);
gdouble radius = MIN (rect_select_options->corner_radius, max);
gimp_channel_select_round_rect (channel,
x, y, w, h,
radius, radius,
operation,
options->antialias,
options->feather,
options->feather_radius,
options->feather_radius,
TRUE);
}
else
{
gimp_channel_select_rectangle (channel,
x, y, w, h,
operation,
options->feather,
options->feather_radius,
options->feather_radius,
TRUE);
}
}
/**
* gimp_rectangle_select_tool_update_option_defaults:
* @crop_tool:
* @ignore_pending: %TRUE to ignore any pending crop rectangle.
*
* Sets the default Fixed: Aspect ratio and Fixed: Size option
* properties.
*/
static void
gimp_rectangle_select_tool_update_option_defaults (GimpRectangleSelectTool *rect_sel_tool,
gboolean ignore_pending)
{
GimpTool *tool;
GimpRectangleTool *rectangle_tool;
GimpRectangleOptions *rectangle_options;
tool = GIMP_TOOL (rect_sel_tool);
rectangle_tool = GIMP_RECTANGLE_TOOL (tool);
rectangle_options = GIMP_RECTANGLE_TOOL_GET_OPTIONS (rectangle_tool);
if (tool->display != NULL && !ignore_pending)
{
/* There is a pending rectangle and we should not ignore it, so
* set default Fixed: Size to the same as the current pending
* rectangle width/height.
*/
gimp_rectangle_tool_pending_size_set (rectangle_tool,
G_OBJECT (rectangle_options),
"default-aspect-numerator",
"default-aspect-denominator");
g_object_set (G_OBJECT (rectangle_options),
"use-string-current", TRUE,
NULL);
}
else
{
g_object_set (G_OBJECT (rectangle_options),
"default-aspect-numerator", 1.0,
"default-aspect-denominator", 1.0,
NULL);
g_object_set (G_OBJECT (rectangle_options),
"use-string-current", FALSE,
NULL);
}
}
/*
* This function is called if the user clicks and releases the left
* button without moving it. There are the things we might want
* to do here:
* 1) If there is an existing rectangle and we are inside it, we
* convert it into a selection.
* 2) If there is an existing rectangle and we are outside it, we
* clear it.
* 3) If there is no rectangle and there is a floating selection,
* we anchor it.
* 4) If there is no rectangle and we are inside the selection, we
* create a rectangle from the selection bounds.
* 5) If there is no rectangle and we are outside the selection,
* we clear the selection.
*/
static gboolean
gimp_rectangle_select_tool_execute (GimpRectangleTool *rectangle,
gint x,
gint y,
gint w,
gint h)
{
GimpTool *tool = GIMP_TOOL (rectangle);
GimpRectangleSelectTool *rect_sel_tool;
GimpRectangleSelectToolPrivate *priv;
rect_sel_tool = GIMP_RECTANGLE_SELECT_TOOL (rectangle);
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
if (w == 0 && h == 0 && tool->display != NULL)
{
GimpImage *image = tool->display->image;
GimpChannel *selection = gimp_image_get_mask (image);
gint pressx;
gint pressy;
if (gimp_image_floating_sel (image))
{
floating_sel_anchor (gimp_image_floating_sel (image));
gimp_image_flush (image);
return TRUE;
}
pressx = ROUND (priv->press_x);
pressy = ROUND (priv->press_y);
/* if the click was inside the marching ants */
if (gimp_pickable_get_opacity_at (GIMP_PICKABLE (selection),
pressx, pressy) > BOUNDARY_HALF_WAY)
{
gint x1, y1, x2, y2;
if (gimp_channel_bounds (selection, &x1, &y1, &x2, &y2))
{
g_object_set (rectangle,
"x1", x1,
"y1", y1,
"x2", x2,
"y2", y2,
NULL);
}
gimp_rectangle_tool_set_function (rectangle,
GIMP_RECTANGLE_TOOL_MOVING);
return FALSE;
}
else
{
GimpTool *tool = GIMP_TOOL (rectangle);
/* prevent this change from halting the tool */
gimp_tool_control_set_preserve (tool->control, TRUE);
/* otherwise clear the selection */
gimp_channel_clear (selection, NULL, TRUE);
gimp_image_flush (image);
gimp_tool_control_set_preserve (tool->control, FALSE);
}
}
gimp_rectangle_select_tool_update_option_defaults (rect_sel_tool, FALSE);
/* Reset the automatic undo/redo mechanism */
priv->undo = NULL;
priv->redo = NULL;
return TRUE;
}
static void
gimp_rectangle_select_tool_cancel (GimpRectangleTool *rectangle)
{
GimpTool *tool;
GimpRectangleSelectTool *rect_sel_tool;
GimpRectangleSelectToolPrivate *priv;
tool = GIMP_TOOL (rectangle);
rect_sel_tool = GIMP_RECTANGLE_SELECT_TOOL (rectangle);
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
if (tool->display)
{
GimpImage *image = tool->display->image;
GimpUndo *undo;
/* if we have an existing rectangle in the current display, then
* we have already "executed", and need to undo at this point,
* unless the user has done something in the meantime
*/
undo = gimp_undo_stack_peek (image->undo_stack);
if (undo && priv->undo == undo)
{
/* prevent this change from halting the tool */
gimp_tool_control_set_preserve (tool->control, TRUE);
gimp_image_undo (image);
gimp_image_flush (image);
gimp_tool_control_set_preserve (tool->control, FALSE);
}
}
gimp_rectangle_select_tool_update_option_defaults (rect_sel_tool, TRUE);
priv->undo = NULL;
priv->redo = NULL;
}
static gboolean
gimp_rectangle_select_tool_rectangle_change_complete (GimpRectangleTool *rectangle)
{
GimpTool *tool;
GimpRectangleSelectTool *rect_sel_tool;
GimpRectangleSelectToolPrivate *priv;
tool = GIMP_TOOL (rectangle);
rect_sel_tool = GIMP_RECTANGLE_SELECT_TOOL (tool);
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
/* prevent change in selection from halting the tool */
gimp_tool_control_set_preserve (tool->control, TRUE);
if (tool->display && ! gimp_tool_control_is_active (tool->control))
{
GimpImage *image = tool->display->image;
GimpUndo *undo;
gint x1, y1, x2, y2;
/* if we got here via button release, we have already undone the
* previous operation. But if we got here by some other means,
* we need to undo it now.
*/
undo = gimp_undo_stack_peek (image->undo_stack);
if (undo && priv->undo == undo)
{
gimp_image_undo (image);
priv->undo = NULL;
}
g_object_get (rectangle,
"x1", &x1,
"y1", &y1,
"x2", &x2,
"y2", &y2,
NULL);
if (gimp_rectangle_select_tool_select (rectangle, x1, y1, x2 - x1, y2 - y1))
{
/* save the undo that we got when executing, but only if
* we actually selected something
*/
priv->undo = gimp_undo_stack_peek (image->undo_stack);
priv->redo = NULL;
}
if (! priv->use_saved_op)
{
GimpSelectionOptions *options;
options = GIMP_SELECTION_TOOL_GET_OPTIONS (tool);
/* remember the operation now in case we modify the rectangle */
priv->operation = options->operation;
priv->use_saved_op = TRUE;
}
gimp_image_flush (image);
}
gimp_tool_control_set_preserve (tool->control, FALSE);
gimp_rectangle_select_tool_update_option_defaults (rect_sel_tool, FALSE);
return TRUE;
}
static void
gimp_rectangle_select_tool_round_corners_notify (GimpRectangleSelectOptions *options,
GParamSpec *pspec,
GimpRectangleSelectTool *rect_sel_tool)
{
GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (rect_sel_tool);
GimpRectangleTool *rect_tool = GIMP_RECTANGLE_TOOL (rect_sel_tool);
GimpRectangleSelectToolPrivate *priv;
priv = GIMP_RECTANGLE_SELECT_TOOL_GET_PRIVATE (rect_sel_tool);
gimp_draw_tool_pause (draw_tool);
priv->round_corners = options->round_corners;
priv->corner_radius = options->corner_radius;
gimp_rectangle_select_tool_rectangle_change_complete (rect_tool);
gimp_draw_tool_resume (draw_tool);
}
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