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Gimp/plug-ins/Lighting/lighting_ui.c
William Skaggs 85e884cee1 Bill Skaggs <weskaggs@primate.ucdavis.edu> 
* plug-ins/Lighting/lighting_main.c
	* plug-ins/Lighting/lighting_main.h
	* plug-ins/Lighting/lighting_preview.c
	* plug-ins/Lighting/lighting_preview.h
	* plug-ins/Lighting/lighting_shade.c
	* plug-ins/Lighting/lighting_ui.c: completely reworked UI for
	lighting page.  Now supports up to 6 lights (more is trivial).
	Added ability to temporarily isolate selected light.  Added
	light intensity controls.  Can interactively position each light
	(does not quite work yet for directional lights).
2004-07-20 18:19:47 +00:00

1413 lines
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/* Lighting Effects - A plug-in for GIMP
*
* Dialog creation and updaters, callbacks and event-handlers
*
* 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 <stdio.h>
#include <string.h>
#include <errno.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "lighting_ui.h"
#include "lighting_main.h"
#include "lighting_image.h"
#include "lighting_apply.h"
#include "lighting_preview.h"
#include "lighting_stock.h"
#include "libgimp/stdplugins-intl.h"
extern LightingValues mapvals;
static GtkWidget *appwin = NULL;
static GtkNotebook *options_note_book = NULL;
GdkGC *gc = NULL;
GtkWidget *previewarea = NULL;
static GtkWidget *colorbutton;
static GtkWidget *light_type_combo;
static GtkWidget *lightselect_combo;
static GtkWidget *spin_intensity;
static GtkWidget *isolate_button;
static gchar *lighting_effects_path = NULL;
static void create_main_notebook (GtkWidget *container);
#ifdef _LIGHTNING_UNUSED_CODE
static void xyzval_update (GtkEntry *entry);
#endif
static void toggle_update (GtkWidget *widget,
gpointer data);
static gboolean bumpmap_constrain (gint32 image_id,
gint32 drawable_id,
gpointer data);
static gboolean envmap_constrain (gint32 image_id,
gint32 drawable_id,
gpointer data);
static void envmap_combo_callback (GtkWidget *widget,
gpointer data);
static void save_lighting_preset (GtkWidget *widget,
gpointer data);
static void file_chooser_response (GtkFileChooser *chooser,
gint response_id,
gpointer data);
static void load_lighting_preset (GtkWidget *widget,
gpointer data);
static void load_file_chooser_response (GtkFileChooser *chooser,
gint response_id,
gpointer data);
static void lightselect_callback (GimpIntComboBox *combo,
gpointer data);
static void apply_settings (GtkWidget *widget,
gpointer data);
static void isolate_selected_light (GtkWidget *widget,
gpointer data);
#ifdef _LIGHTNING_UNUSED_CODE
/**********************************************************/
/* Update entry fields that affect the preview parameters */
/**********************************************************/
static void
xyzval_update (GtkEntry *entry)
{
gdouble *valueptr;
gdouble value;
valueptr = (gdouble *) g_object_get_data (G_OBJECT (entry), "ValuePtr");
value = atof (gtk_entry_get_text (entry));
*valueptr = value;
}
#endif
/**********************/
/* Std. toggle update */
/**********************/
static void
toggle_update (GtkWidget *widget,
gpointer data)
{
gimp_toggle_button_update (widget, data);
draw_preview_image (TRUE);
}
/*****************************************/
/* Main window light type menu callback. */
/*****************************************/
static void
apply_settings (GtkWidget *widget,
gpointer data)
{
gint valid;
gint type;
gint k = mapvals.light_selected;
if (mapvals.update_enabled)
{
valid = gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (light_type_combo),
&type);
if (valid)
mapvals.lightsource[k].type = type;
gimp_color_button_get_color (GIMP_COLOR_BUTTON (colorbutton),
&mapvals.lightsource[k].color);
mapvals.lightsource[k].position.x
= gtk_spin_button_get_value (GTK_SPIN_BUTTON(spin_pos_x));
mapvals.lightsource[k].position.y
= gtk_spin_button_get_value (GTK_SPIN_BUTTON(spin_pos_y));
mapvals.lightsource[k].position.z
= gtk_spin_button_get_value (GTK_SPIN_BUTTON(spin_pos_z));
mapvals.lightsource[k].direction.x
= gtk_spin_button_get_value (GTK_SPIN_BUTTON(spin_dir_x));
mapvals.lightsource[k].direction.y
= gtk_spin_button_get_value (GTK_SPIN_BUTTON(spin_dir_y));
mapvals.lightsource[k].direction.z
= gtk_spin_button_get_value (GTK_SPIN_BUTTON(spin_dir_z));
mapvals.lightsource[k].intensity
= gtk_spin_button_get_value (GTK_SPIN_BUTTON(spin_intensity));
interactive_preview_callback(NULL);
}
}
static void
mapmenu2_callback (GtkWidget *widget,
gpointer data)
{
gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget), (gint *) data);
draw_preview_image (TRUE);
}
/******************************************/
/* Main window "Preview!" button callback */
/******************************************/
static void
preview_callback (GtkWidget *widget)
{
draw_preview_image (TRUE);
}
/*********************************************/
/* Main window "-" (zoom in) button callback */
/*********************************************/
/*
static void
zoomout_callback (GtkWidget *widget)
{
mapvals.preview_zoom_factor *= 0.5;
draw_preview_image (TRUE);
}
*/
/*********************************************/
/* Main window "+" (zoom out) button callback */
/*********************************************/
/*
static void
zoomin_callback (GtkWidget *widget)
{
mapvals.preview_zoom_factor *= 2.0;
draw_preview_image (TRUE);
}
*/
/**********************************************/
/* Main window "Apply" button callback. */
/* Render to GIMP image, close down and exit. */
/**********************************************/
static gint
bumpmap_constrain (gint32 image_id,
gint32 drawable_id,
gpointer data)
{
return ((gimp_drawable_width (drawable_id) ==
gimp_drawable_width (mapvals.drawable_id)) &&
(gimp_drawable_height (drawable_id) ==
gimp_drawable_height (mapvals.drawable_id)));
}
static gint
envmap_constrain (gint32 image_id,
gint32 drawable_id,
gpointer data)
{
return (!gimp_drawable_is_gray (drawable_id) &&
!gimp_drawable_has_alpha (drawable_id));
}
static void
envmap_combo_callback (GtkWidget *widget,
gpointer data)
{
gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget),
&mapvals.envmap_id);
env_width = gimp_drawable_width (mapvals.envmap_id);
env_height = gimp_drawable_height (mapvals.envmap_id);
}
/***********************/
/* Dialog constructors */
/***********************/
static GtkWidget *
create_options_page (void)
{
GtkWidget *page;
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *toggle;
page = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (page), 12);
/* General options */
frame = gimp_frame_new (_("General Options"));
gtk_box_pack_start (GTK_BOX (page), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_vbox_new (FALSE, 6);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
toggle = gtk_check_button_new_with_mnemonic (_("T_ransparent background"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
mapvals.transparent_background);
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (toggle_update),
&mapvals.transparent_background);
gtk_widget_show (toggle);
gimp_help_set_help_data (toggle,
_("Make destination image transparent where bump "
"height is zero"),NULL);
toggle = gtk_check_button_new_with_mnemonic (_("Cre_ate new image"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
mapvals.create_new_image);
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&mapvals.create_new_image);
gtk_widget_show (toggle);
gimp_help_set_help_data (toggle,
_("Create a new image when applying filter"), NULL);
toggle = gtk_check_button_new_with_mnemonic (_("High _Quality preview"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
mapvals.previewquality);
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (toggle_update),
&mapvals.previewquality);
gtk_widget_show (toggle);
gimp_help_set_help_data (toggle,
_("Enable/disable high quality preview"), NULL);
gtk_widget_show (page);
return page;
}
/******************************/
/* Create light settings page */
/******************************/
static GtkWidget *
create_light_page (void)
{
GtkWidget *page;
GtkWidget *frame;
GtkWidget *table;
GtkWidget *ebox;
GtkWidget *button;
GtkObject *adj;
GtkWidget *label;
gint k = mapvals.light_selected;
page = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (page), 12);
frame = gimp_frame_new (_("Light Settings"));
gtk_box_pack_start (GTK_BOX (page), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
table = gtk_table_new (8, 8, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_container_add (GTK_CONTAINER (frame), table);
gtk_widget_show (table);
gtk_table_set_col_spacing (GTK_TABLE (table), 1, 12);
gtk_table_set_col_spacing (GTK_TABLE (table), 3, 12);
lightselect_combo = gimp_int_combo_box_new (_("Light 1"), 0,
_("Light 2"), 1,
_("Light 3"), 2,
_("Light 4"), 3,
_("Light 5"), 4,
_("Light 6"), 5,
NULL);
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (lightselect_combo), k);
gtk_table_attach_defaults (GTK_TABLE (table), lightselect_combo, 0, 2, 0, 1);
g_signal_connect (lightselect_combo, "changed",
G_CALLBACK (lightselect_callback), NULL);
gtk_widget_show (lightselect_combo);
/* row labels */
label = gtk_label_new (_("Type:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 1, 2);
gtk_widget_show (label);
label = gtk_label_new (_("Color:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 2, 3);
gtk_widget_show (label);
light_type_combo =
gimp_int_combo_box_new (_("None"), NO_LIGHT,
_("Directional"), DIRECTIONAL_LIGHT,
_("Point"), POINT_LIGHT,
/* _("Spot"), SPOT_LIGHT, */
NULL);
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (light_type_combo),
mapvals.lightsource[k].type);
g_signal_connect (light_type_combo, "changed",
G_CALLBACK (apply_settings),
NULL);
ebox = gtk_event_box_new ();
gtk_container_add (GTK_CONTAINER (ebox), light_type_combo);
gtk_widget_show (ebox);
gtk_table_attach_defaults (GTK_TABLE (table),
ebox, 1, 2, 1, 2);
gtk_widget_show (light_type_combo);
gimp_help_set_help_data (ebox, _("Type of light source to apply"), NULL);
colorbutton = gimp_color_button_new (_("Select lightsource color"),
64, 16,
&mapvals.lightsource[k].color,
GIMP_COLOR_AREA_FLAT);
gimp_color_button_set_update (GIMP_COLOR_BUTTON (colorbutton), TRUE);
g_signal_connect (colorbutton, "color_changed",
G_CALLBACK (apply_settings),
NULL);
gtk_widget_show (colorbutton);
gtk_table_attach_defaults (GTK_TABLE (table),
colorbutton, 1, 2, 2, 3);
gimp_help_set_help_data (colorbutton,
_("Set light source color"), NULL);
spin_intensity = gimp_spin_button_new (&adj,
mapvals.lightsource[k].intensity,
0.0, 100.0,
0.01, 0.1, 1.0, 0.0, 2);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 3,
_("_Intensity:"), 0.0, 0.5,
spin_intensity, 1, TRUE);
g_signal_connect (adj, "value_changed",
G_CALLBACK (apply_settings),
NULL);
gimp_help_set_help_data (spin_intensity,
_("Light intensity"), NULL);
label = gtk_label_new (_("Position"));
gtk_table_attach_defaults (GTK_TABLE (table), label, 3, 4, 0, 1);
gtk_widget_show (label);
spin_pos_x = gimp_spin_button_new (&adj,
mapvals.lightsource[k].position.x,
-100.0, 100.0,
0.1, 1.0, 1.0, 0.0, 2);
gimp_table_attach_aligned (GTK_TABLE (table), 2, 1,
_("_X:"), 0.0, 0.5,
spin_pos_x, 1, TRUE);
g_signal_connect (adj, "value_changed",
G_CALLBACK (apply_settings),
NULL);
gimp_help_set_help_data (spin_pos_x,
_("Light source X position in XYZ space"), NULL);
spin_pos_y = gimp_spin_button_new (&adj,
mapvals.lightsource[k].position.y,
-100.0, 100.0,
0.1, 1.0, 1.0, 0.0, 2);
gimp_table_attach_aligned (GTK_TABLE (table), 2, 2,
_("_Y:"), 0.0, 0.5,
spin_pos_y, 1, TRUE);
g_signal_connect (adj, "value_changed",
G_CALLBACK (apply_settings),
NULL);
gimp_help_set_help_data (spin_pos_y,
_("Light source Y position in XYZ space"), NULL);
spin_pos_z = gimp_spin_button_new (&adj,
mapvals.lightsource[k].position.z,
-100.0, 100.0,
0.1, 1.0, 1.0, 0.0, 2);
gimp_table_attach_aligned (GTK_TABLE (table), 2, 3,
_("_Z:"), 0.0, 0.5,
spin_pos_z, 1, TRUE);
g_signal_connect (adj, "value_changed",
G_CALLBACK (apply_settings),
NULL);
gimp_help_set_help_data (spin_pos_z,
_("Light source Z position in XYZ space"), NULL);
label = gtk_label_new (_("Direction"));
gtk_table_attach_defaults (GTK_TABLE (table), label, 5, 6, 0, 1);
gtk_widget_show (label);
spin_dir_x = gimp_spin_button_new (&adj,
mapvals.lightsource[k].direction.x,
-100.0, 100.0, 0.1, 1.0, 1.0, 0.0, 2);
gimp_table_attach_aligned (GTK_TABLE (table), 4, 1,
_("X:"), 0.0, 0.5,
spin_dir_x, 1, TRUE);
g_signal_connect (adj, "value_changed",
G_CALLBACK (apply_settings),
NULL);
gimp_help_set_help_data (spin_dir_x,
_("Light source X direction in XYZ space"), NULL);
spin_dir_y = gimp_spin_button_new (&adj,
mapvals.lightsource[k].direction.y,
-100.0, 100.0, 0.1, 1.0, 1.0, 0.0, 2);
gimp_table_attach_aligned (GTK_TABLE (table), 4, 2,
_("Y:"), 0.0, 0.5,
spin_dir_y, 1, TRUE);
g_signal_connect (adj, "value_changed",
G_CALLBACK (apply_settings),
NULL);
gimp_help_set_help_data (spin_dir_y,
_("Light source Y direction in XYZ space"), NULL);
spin_dir_z = gimp_spin_button_new (&adj,
mapvals.lightsource[k].direction.z,
-100.0, 100.0, 0.1, 1.0, 1.0, 0.0, 2);
gimp_table_attach_aligned (GTK_TABLE (table), 4, 3,
_("Z:"), 0.0, 0.5,
spin_dir_z, 1, TRUE);
g_signal_connect (adj, "value_changed",
G_CALLBACK (apply_settings),
NULL);
gimp_help_set_help_data (spin_dir_z,
_("Light source Z direction in XYZ space"),
NULL);
isolate_button = gtk_toggle_button_new_with_mnemonic (_("I_solate"));
gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (isolate_button), FALSE);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (isolate_button),
mapvals.light_isolated);
g_signal_connect (isolate_button, "toggled",
G_CALLBACK (isolate_selected_light),
NULL);
gtk_table_attach_defaults (GTK_TABLE (table), isolate_button, 0, 1, 5, 6);
gtk_widget_show (isolate_button);
label = gtk_label_new (_("Lighting preset:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 0.5);
gtk_table_set_row_spacing (GTK_TABLE (table), 5, 12);
gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 2, 6, 7);
gtk_widget_show (label);
button = gtk_button_new_from_stock (GTK_STOCK_SAVE);
gtk_table_attach_defaults (GTK_TABLE (table), button, 2, 4, 6, 7);
g_signal_connect (button, "clicked",
G_CALLBACK (save_lighting_preset),
NULL);
gtk_widget_show (button);
button = gtk_button_new_from_stock (GTK_STOCK_OPEN);
gtk_table_attach_defaults (GTK_TABLE (table), button, 4, 6, 6, 7);
g_signal_connect (button, "clicked",
G_CALLBACK (load_lighting_preset),
NULL);
gtk_widget_show (button);
gtk_widget_show (page);
return page;
}
/*********************************/
/* Create material settings page */
/*********************************/
static GtkWidget *
create_material_page (void)
{
GtkSizeGroup *group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
GtkWidget *page;
GtkWidget *frame;
GtkWidget *table;
GtkWidget *label;
GtkWidget *hbox;
GtkWidget *spinbutton;
GtkWidget *image;
GtkWidget *button;
GtkObject *adj;
page = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (page), 12);
frame = gimp_frame_new (_("Material properties"));
gtk_box_pack_start (GTK_BOX (page), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
hbox = gtk_hbox_new (FALSE, 6);
gtk_container_add (GTK_CONTAINER (frame), hbox);
gtk_widget_show (hbox);
table = gtk_table_new (5, 4, FALSE);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_box_pack_start (GTK_BOX (hbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
/* Ambient intensity */
image = gtk_image_new_from_stock (STOCK_INTENSITY_AMBIENT_LOW,
GTK_ICON_SIZE_BUTTON);
label = gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("_Glowing:"), 0.0, 0.5,
image, 1, FALSE);
gtk_size_group_add_widget (group, label);
spinbutton = gimp_spin_button_new (&adj, mapvals.material.ambient_int,
0, G_MAXFLOAT, 0.01, 0.1, 1.0, 0.0, 2);
gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 0, 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
g_signal_connect (adj, "value_changed",
G_CALLBACK (gimp_double_adjustment_update),
&mapvals.material.ambient_int);
g_signal_connect (adj, "value_changed",
G_CALLBACK (interactive_preview_callback),
NULL);
gtk_widget_show (spinbutton);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), spinbutton);
gimp_help_set_help_data (spinbutton,
_("Amount of original color to show where no "
"direct light falls"), NULL);
image = gtk_image_new_from_stock (STOCK_INTENSITY_AMBIENT_HIGH,
GTK_ICON_SIZE_BUTTON);
gtk_table_attach (GTK_TABLE (table), image, 3, 4, 0, 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (image);
/* Diffuse intensity */
image = gtk_image_new_from_stock (STOCK_INTENSITY_DIFFUSE_LOW,
GTK_ICON_SIZE_BUTTON);
label = gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
_("_Bright:"), 0.0, 0.5,
image, 1, FALSE);
gtk_size_group_add_widget (group, label);
spinbutton = gimp_spin_button_new (&adj, mapvals.material.diffuse_int,
0, G_MAXFLOAT, 0.01, 0.1, 1.0, 0.0, 2);
gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 1, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
g_signal_connect (adj, "value_changed",
G_CALLBACK (gimp_double_adjustment_update),
&mapvals.material.diffuse_int);
g_signal_connect (adj, "value_changed",
G_CALLBACK (interactive_preview_callback),
NULL);
gtk_widget_show (spinbutton);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), spinbutton);
gimp_help_set_help_data (spinbutton,
_("Intensity of original color when lit by a light "
"source"), NULL);
image = gtk_image_new_from_stock (STOCK_INTENSITY_DIFFUSE_HIGH,
GTK_ICON_SIZE_BUTTON);
gtk_table_attach (GTK_TABLE (table), image, 3, 4, 1, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (image);
/* Specular reflection */
image = gtk_image_new_from_stock (STOCK_REFLECTIVITY_SPECULAR_LOW,
GTK_ICON_SIZE_BUTTON);
label = gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
_("_Shiny:"), 0.0, 0.5,
image, 1, FALSE);
gtk_size_group_add_widget (group, label);
spinbutton = gimp_spin_button_new (&adj, mapvals.material.specular_ref,
0, G_MAXFLOAT, 0.01, 0.1, 1.0, 0.0, 2);
gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 2, 3,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
g_signal_connect (adj, "value_changed",
G_CALLBACK (gimp_double_adjustment_update),
&mapvals.material.specular_ref);
g_signal_connect (adj, "value_changed",
G_CALLBACK (interactive_preview_callback),
NULL);
gtk_widget_show (spinbutton);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), spinbutton);
gimp_help_set_help_data (spinbutton,
_("Controls how intense the highlights will be"),
NULL);
image = gtk_image_new_from_stock (STOCK_REFLECTIVITY_SPECULAR_HIGH,
GTK_ICON_SIZE_BUTTON);
gtk_table_attach (GTK_TABLE (table), image, 3, 4, 2, 3,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (image);
/* Highlight */
image = gtk_image_new_from_stock (STOCK_REFLECTIVITY_HIGHLIGHT_LOW,
GTK_ICON_SIZE_BUTTON);
label = gimp_table_attach_aligned (GTK_TABLE (table), 0, 3,
_("_Polished:"), 0.0, 0.5,
image, 1, FALSE);
gtk_size_group_add_widget (group, label);
spinbutton = gimp_spin_button_new (&adj, mapvals.material.highlight,
0, G_MAXFLOAT, 0.01, 0.1, 1.0, 0.0, 2);
gtk_table_attach (GTK_TABLE (table), spinbutton, 2, 3, 3, 4,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
g_signal_connect (adj, "value_changed",
G_CALLBACK (gimp_double_adjustment_update),
&mapvals.material.highlight);
g_signal_connect (adj, "value_changed",
G_CALLBACK (interactive_preview_callback),
NULL);
gtk_widget_show (spinbutton);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), spinbutton);
gimp_help_set_help_data (spinbutton,
_("Higher values makes the highlights more focused"),
NULL);
image = gtk_image_new_from_stock (STOCK_REFLECTIVITY_HIGHLIGHT_HIGH,
GTK_ICON_SIZE_BUTTON);
gtk_table_attach (GTK_TABLE (table), image, 3, 4, 3, 4,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (image);
/* Metallic */
button = gtk_check_button_new_with_mnemonic (_("_Metallic"));
gtk_table_attach (GTK_TABLE (table), button, 0, 3, 4, 5,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
g_signal_connect (button, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&mapvals.material.metallic);
g_signal_connect (button, "toggled",
G_CALLBACK (interactive_preview_callback),
NULL);
gtk_widget_show (button);
gtk_widget_show (page);
return page;
}
/* Create Bump mapping page */
static GtkWidget *
create_bump_page (void)
{
GtkWidget *page;
GtkWidget *toggle;
GtkWidget *frame;
GtkWidget *table;
GtkWidget *combo;
GtkWidget *spinbutton;
GtkObject *adj;
page = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (page), 12);
frame = gimp_frame_new (NULL);
gtk_box_pack_start (GTK_BOX (page), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
toggle = gtk_check_button_new_with_mnemonic (_("E_nable bump mapping"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
mapvals.bump_mapped);
gtk_frame_set_label_widget (GTK_FRAME (frame), toggle);
gtk_widget_show (toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&mapvals.bump_mapped);
g_signal_connect (toggle, "toggled",
G_CALLBACK (interactive_preview_callback),
NULL);
gimp_help_set_help_data (toggle,
_("Enable/disable bump-mapping (image depth)"),
NULL);
table = gtk_table_new (6, 2, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_container_add (GTK_CONTAINER (frame), table);
gtk_widget_show (table);
gtk_widget_set_sensitive (table, mapvals.bump_mapped);
g_object_set_data (G_OBJECT (toggle), "set_sensitive", table);
combo = gimp_drawable_combo_box_new (bumpmap_constrain, NULL);
gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo), mapvals.bumpmap_id,
G_CALLBACK (gimp_int_combo_box_get_active),
&mapvals.bumpmap_id);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("Bumpm_ap image:"), 0.0, 0.5,
combo, 1, FALSE);
combo = gimp_int_combo_box_new (_("Linear"), LINEAR_MAP,
_("Logarithmic"), LOGARITHMIC_MAP,
_("Sinusoidal"), SINUSOIDAL_MAP,
_("Spherical"), SPHERICAL_MAP,
NULL);
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (combo),
mapvals.bumpmaptype);
g_signal_connect (combo, "changed",
G_CALLBACK (mapmenu2_callback),
&mapvals.bumpmaptype);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
_("Cu_rve:"), 0.0, 0.5, combo, 1, FALSE);
spinbutton = gimp_spin_button_new (&adj, mapvals.bumpmax,
0, G_MAXFLOAT, 0.01, 0.1, 1.0, 0.0, 2);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 2,
_("Ma_ximum height:"), 0.0, 0.5,
spinbutton, 1, TRUE);
g_signal_connect (adj, "value_changed",
G_CALLBACK (gimp_double_adjustment_update),
&mapvals.bumpmax);
g_signal_connect (adj, "value_changed",
G_CALLBACK (interactive_preview_callback),
NULL);
gimp_help_set_help_data (spinbutton,
_("Maximum height for bumps"),
NULL);
gtk_widget_show (page);
return page;
}
static GtkWidget *
create_environment_page (void)
{
GtkWidget *page;
GtkWidget *toggle;
GtkWidget *table;
GtkWidget *frame;
GtkWidget *combo;
GtkWidget *ebox;
page = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (page), 12);
frame = gimp_frame_new (NULL);
gtk_box_pack_start (GTK_BOX (page), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
toggle = gtk_check_button_new_with_mnemonic (_("E_nable environment mapping"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
mapvals.env_mapped);
gtk_frame_set_label_widget (GTK_FRAME (frame), toggle);
gtk_widget_show (toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&mapvals.env_mapped);
g_signal_connect (toggle, "toggled",
G_CALLBACK (interactive_preview_callback),
NULL);
gimp_help_set_help_data (toggle,
_("Enable/disable environment-mapping (reflection)"),
NULL);
table = gtk_table_new (3, 2, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_container_add (GTK_CONTAINER (frame), table);
gtk_widget_show (table);
gtk_widget_set_sensitive (table, mapvals.env_mapped);
g_object_set_data (G_OBJECT (toggle), "set_sensitive", table);
combo = gimp_drawable_combo_box_new (envmap_constrain, NULL);
gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo), mapvals.envmap_id,
G_CALLBACK (envmap_combo_callback),
NULL);
ebox = gtk_event_box_new ();
gtk_container_add (GTK_CONTAINER (ebox), combo);
gtk_widget_show (combo);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("En_vironment image:"), 0.0, 0.5,
ebox, 1, FALSE);
gimp_help_set_help_data (ebox, _("Environment image to use"), NULL);
gtk_widget_show (page);
return page;
}
/*****************************/
/* Create notebook and pages */
/*****************************/
static void
create_main_notebook (GtkWidget *container)
{
GtkWidget *page;
options_note_book = GTK_NOTEBOOK (gtk_notebook_new ());
gtk_container_add (GTK_CONTAINER (container),
GTK_WIDGET (options_note_book));
page = create_options_page ();
gtk_notebook_append_page (options_note_book, page,
gtk_label_new_with_mnemonic (_("Op_tions")));
page = create_light_page ();
gtk_notebook_append_page (options_note_book, page,
gtk_label_new_with_mnemonic (_("_Light")));
page = create_material_page ();
gtk_notebook_append_page (options_note_book, page,
gtk_label_new_with_mnemonic (_("_Material")));
page = create_bump_page ();
gtk_notebook_append_page (options_note_book, page,
gtk_label_new_with_mnemonic (_("_Bump Map")));
page = create_environment_page ();
gtk_notebook_append_page (options_note_book, page,
gtk_label_new_with_mnemonic (_("_Environment Map")));
/*
if (mapvals.bump_mapped == TRUE)
{
bump_page = create_bump_page ();
bump_page_pos = g_list_length (options_note_book->children);
gtk_notebook_append_page (options_note_book, bump_page,
gtk_label_new (_("Bumpmap")));
}
if (mapvals.env_mapped == TRUE)
{
env_page = create_environment_page ();
env_page_pos = g_list_length (options_note_book->children);
gtk_notebook_append_page (options_note_book, env_page,
gtk_label_new (_("Environment")));
}
*/
gtk_widget_show (GTK_WIDGET (options_note_book));
}
/********************************/
/* Create and show main dialog. */
/********************************/
gboolean
main_dialog (GimpDrawable *drawable)
{
GtkWidget *main_hbox;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *frame;
GtkWidget *button;
GtkWidget *toggle;
gboolean run = FALSE;
/*
GtkWidget *image;
*/
gimp_ui_init ("Lighting", FALSE);
lighting_effects_path = gimp_gimprc_query ("lighting-effects-path");
lighting_stock_init ();
appwin = gimp_dialog_new (_("Lighting Effects"), "Lighting",
NULL, 0,
gimp_standard_help_func, "plug-in-lighting",
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
main_hbox = gtk_hbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_hbox), 12);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (appwin)->vbox), main_hbox,
FALSE, FALSE, 0);
gtk_widget_show (main_hbox);
/* Create the Preview */
/* ================== */
vbox = gtk_vbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (main_hbox), vbox, FALSE, FALSE, 0);
gtk_widget_show (vbox);
/* Add preview widget and various buttons to the first part */
/* ======================================================== */
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);
gtk_widget_realize (appwin);
previewarea = gtk_drawing_area_new ();
gtk_widget_set_size_request (previewarea, PREVIEW_WIDTH, PREVIEW_HEIGHT);
gtk_widget_set_events (previewarea, (GDK_EXPOSURE_MASK |
GDK_BUTTON1_MOTION_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK));
g_signal_connect (previewarea, "event",
G_CALLBACK (preview_events),
previewarea);
gtk_container_add (GTK_CONTAINER (frame), previewarea);
gtk_widget_show (previewarea);
/* create preview options, frame and vbox */
hbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
button = gtk_button_new_with_mnemonic (_("_Update"));
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
g_signal_connect (button, "clicked",
G_CALLBACK (preview_callback),
NULL);
gtk_widget_show (button);
gimp_help_set_help_data (button, _("Recompute preview image"), NULL);
toggle = gtk_check_button_new_with_mnemonic (_("I_nteractive"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle),
mapvals.interactive_preview);
gtk_box_pack_start (GTK_BOX (hbox), toggle, TRUE, TRUE, 0);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&mapvals.interactive_preview);
g_signal_connect (toggle, "toggled",
G_CALLBACK (interactive_preview_callback),
NULL);
gtk_widget_show (toggle);
gimp_help_set_help_data (toggle,
_("Enable/disable real time preview of changes"),
NULL);
create_main_notebook (main_hbox);
gtk_widget_show (appwin);
{
GdkCursor *cursor;
cursor = gdk_cursor_new_for_display (gtk_widget_get_display (previewarea),
GDK_HAND2);
gdk_window_set_cursor (previewarea->window, cursor);
gdk_cursor_unref (cursor);
}
image_setup (drawable, TRUE);
if (gimp_dialog_run (GIMP_DIALOG (appwin)) == GTK_RESPONSE_OK)
run = TRUE;
if (preview_rgb_data != NULL)
g_free (preview_rgb_data);
gtk_widget_destroy (appwin);
return run;
}
static void
save_lighting_preset (GtkWidget *widget,
gpointer data)
{
static GtkWidget *window = NULL;
if (! window)
{
window =
gtk_file_chooser_dialog_new (_("Save Lighting Preset"),
GTK_WINDOW (appwin),
GTK_FILE_CHOOSER_ACTION_SAVE,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_SAVE, GTK_RESPONSE_OK,
NULL);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed),
&window);
g_signal_connect (window, "response",
G_CALLBACK (file_chooser_response),
NULL);
}
if (lighting_effects_path)
{
GList *list;
gchar *dir;
list = gimp_path_parse (lighting_effects_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_chooser_set_current_folder (GTK_FILE_CHOOSER (window), dir);
g_free (dir);
}
else
{
gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (window),
g_get_tmp_dir ());
}
gtk_window_present (GTK_WINDOW (window));
}
static void
file_chooser_response (GtkFileChooser *chooser,
gint response_id,
gpointer data)
{
FILE *fp;
gint num_lights = 0;
gint k;
LightSettings *source;
gchar buffer1[G_ASCII_DTOSTR_BUF_SIZE];
gchar buffer2[G_ASCII_DTOSTR_BUF_SIZE];
gchar buffer3[G_ASCII_DTOSTR_BUF_SIZE];
gint blen = G_ASCII_DTOSTR_BUF_SIZE;
if (response_id == GTK_RESPONSE_OK)
{
gchar *filename = gtk_file_chooser_get_filename (chooser);
fp = fopen (filename, "w");
if (!fp)
{
g_message (_("Could not open '%s' for writing: %s"),
filename, g_strerror (errno));
}
else
{
for (k = 0; k < NUM_LIGHTS; k++)
if (mapvals.lightsource[k].type != NO_LIGHT)
++num_lights;
fprintf (fp, "Number of lights: %d\n", num_lights);
for (k = 0; k < NUM_LIGHTS; k++)
if (mapvals.lightsource[k].type != NO_LIGHT)
{
source = &mapvals.lightsource[k];
switch (source->type)
{
case POINT_LIGHT:
fprintf (fp, "Type: Point\n");
break;
case DIRECTIONAL_LIGHT:
fprintf (fp, "Type: Directional\n");
break;
case SPOT_LIGHT:
fprintf (fp, "Type: Spot\n");
break;
default:
g_warning ("Unknown light type: %d",
mapvals.lightsource[k].type);
continue;
}
fprintf (fp, "Position: %s %s %s\n",
g_ascii_dtostr (buffer1, blen, source->position.x),
g_ascii_dtostr (buffer2, blen, source->position.y),
g_ascii_dtostr (buffer3, blen, source->position.z));
fprintf (fp, "Direction: %s %s %s\n",
g_ascii_dtostr (buffer1, blen, source->direction.x),
g_ascii_dtostr (buffer2, blen, source->direction.y),
g_ascii_dtostr (buffer3, blen, source->direction.z));
fprintf (fp, "Color: %s %s %s\n",
g_ascii_dtostr (buffer1, blen, source->color.r),
g_ascii_dtostr (buffer2, blen, source->color.g),
g_ascii_dtostr (buffer3, blen, source->color.b));
fprintf (fp, "Intensity: %s\n",
g_ascii_dtostr (buffer1, blen, source->intensity));
}
fclose (fp);
}
}
gtk_widget_destroy (GTK_WIDGET (chooser));
}
static void
load_lighting_preset (GtkWidget *widget,
gpointer data)
{
static GtkWidget *window = NULL;
if (! window)
{
window =
gtk_file_chooser_dialog_new (_("Load Lighting Preset"),
GTK_WINDOW (appwin),
GTK_FILE_CHOOSER_ACTION_OPEN,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OPEN, GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_default_response (GTK_DIALOG (window), GTK_RESPONSE_OK);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed),
&window);
g_signal_connect (window, "response",
G_CALLBACK (load_file_chooser_response),
NULL);
}
if (lighting_effects_path)
{
GList *list;
gchar *dir;
list = gimp_path_parse (lighting_effects_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_chooser_set_current_folder (GTK_FILE_CHOOSER (window), dir);
g_free (dir);
}
else
{
gtk_file_chooser_set_current_folder (GTK_FILE_CHOOSER (window),
g_get_tmp_dir ());
}
gtk_window_present (GTK_WINDOW (window));
}
static void
load_file_chooser_response (GtkFileChooser *chooser,
gint response_id,
gpointer data)
{
FILE *fp;
gint num_lights;
gint k;
LightSettings *source;
gchar buffer1[G_ASCII_DTOSTR_BUF_SIZE];
gchar buffer2[G_ASCII_DTOSTR_BUF_SIZE];
gchar buffer3[G_ASCII_DTOSTR_BUF_SIZE];
gchar type_label[20];
gchar *endptr;
if (response_id == GTK_RESPONSE_OK)
{
gchar *filename = gtk_file_chooser_get_filename (chooser);
fp = fopen (filename, "r");
if (!fp)
{
g_message (_("Could not open '%s' for reading: %s"),
filename, g_strerror (errno));
}
else
{
fscanf (fp, "Number of lights: %d", &num_lights);
/* initialize lights to off */
for (k = 0; k < NUM_LIGHTS; k++)
mapvals.lightsource[k].type = NO_LIGHT;
for (k = 0; k < num_lights; k++)
{
source = &mapvals.lightsource[k];
fscanf (fp, " Type: %s", type_label);
if (!strcmp (type_label, "Point"))
source->type = POINT_LIGHT;
else if (!strcmp (type_label, "Directional"))
source->type = DIRECTIONAL_LIGHT;
else if (!strcmp (type_label, "Spot"))
source->type = SPOT_LIGHT;
else
{
g_warning ("Unknown light type: %s", type_label);
fclose (fp);
return;
}
fscanf (fp, " Position: %s %s %s", buffer1, buffer2, buffer3);
source->position.x = g_ascii_strtod (buffer1, &endptr);
source->position.y = g_ascii_strtod (buffer2, &endptr);
source->position.z = g_ascii_strtod (buffer3, &endptr);
fscanf (fp, " Direction: %s %s %s", buffer1, buffer2, buffer3);
source->direction.x = g_ascii_strtod (buffer1, &endptr);
source->direction.y = g_ascii_strtod (buffer2, &endptr);
source->direction.z = g_ascii_strtod (buffer3, &endptr);
fscanf (fp, " Color: %s %s %s", buffer1, buffer2, buffer3);
source->color.r = g_ascii_strtod (buffer1, &endptr);
source->color.g = g_ascii_strtod (buffer2, &endptr);
source->color.b = g_ascii_strtod (buffer3, &endptr);
source->color.a = 1.0;
fscanf (fp, " Intensity: %s", buffer1);
source->intensity = g_ascii_strtod (buffer1, &endptr);
}
fclose (fp);
}
lightselect_callback (GIMP_INT_COMBO_BOX (lightselect_combo), NULL);
}
gtk_widget_destroy (GTK_WIDGET (chooser));
interactive_preview_callback (GTK_WIDGET (chooser));
}
static void
lightselect_callback (GimpIntComboBox *combo,
gpointer data)
{
gint valid;
gint j, k;
valid = gimp_int_combo_box_get_active (combo, &k);
if (valid)
{
mapvals.update_enabled = FALSE; /* prevent apply_settings() */
mapvals.light_selected = k;
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (light_type_combo),
mapvals.lightsource[k].type);
gimp_color_button_set_color (GIMP_COLOR_BUTTON (colorbutton),
&mapvals.lightsource[k].color);
gtk_spin_button_set_value (GTK_SPIN_BUTTON(spin_pos_x),
mapvals.lightsource[k].position.x);
gtk_spin_button_set_value (GTK_SPIN_BUTTON(spin_pos_y),
mapvals.lightsource[k].position.y);
gtk_spin_button_set_value (GTK_SPIN_BUTTON(spin_pos_z),
mapvals.lightsource[k].position.z);
gtk_spin_button_set_value (GTK_SPIN_BUTTON(spin_dir_x),
mapvals.lightsource[k].direction.x);
gtk_spin_button_set_value (GTK_SPIN_BUTTON(spin_dir_y),
mapvals.lightsource[k].direction.y);
gtk_spin_button_set_value (GTK_SPIN_BUTTON(spin_dir_z),
mapvals.lightsource[k].direction.z);
gtk_spin_button_set_value (GTK_SPIN_BUTTON(spin_intensity),
mapvals.lightsource[k].intensity);
mapvals.update_enabled = TRUE;
switch (mapvals.lightsource[k].type)
{
case NO_LIGHT:
gtk_widget_set_sensitive (spin_pos_x, FALSE);
gtk_widget_set_sensitive (spin_pos_y, FALSE);
gtk_widget_set_sensitive (spin_pos_z, FALSE);
gtk_widget_set_sensitive (spin_dir_x, FALSE);
gtk_widget_set_sensitive (spin_dir_y, FALSE);
gtk_widget_set_sensitive (spin_dir_z, FALSE);
break;
case POINT_LIGHT:
gtk_widget_set_sensitive (spin_pos_x, TRUE);
gtk_widget_set_sensitive (spin_pos_y, TRUE);
gtk_widget_set_sensitive (spin_pos_z, TRUE);
gtk_widget_set_sensitive (spin_dir_x, FALSE);
gtk_widget_set_sensitive (spin_dir_y, FALSE);
gtk_widget_set_sensitive (spin_dir_z, FALSE);
break;
case DIRECTIONAL_LIGHT:
gtk_widget_set_sensitive (spin_pos_x, FALSE);
gtk_widget_set_sensitive (spin_pos_y, FALSE);
gtk_widget_set_sensitive (spin_pos_z, FALSE);
gtk_widget_set_sensitive (spin_dir_x, TRUE);
gtk_widget_set_sensitive (spin_dir_y, TRUE);
gtk_widget_set_sensitive (spin_dir_z, TRUE);
break;
default:
break;
}
/* if we are isolating a light, need to switch */
if (mapvals.light_isolated)
{
for (j = 0; j < NUM_LIGHTS; j++)
if (j == mapvals.light_selected)
mapvals.lightsource[j].active = TRUE;
else
mapvals.lightsource[j].active = FALSE;
}
interactive_preview_callback (NULL);
}
}
static void
isolate_selected_light (GtkWidget *widget,
gpointer data)
{
gint k;
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
{
mapvals.light_isolated = TRUE;
for (k = 0; k < NUM_LIGHTS; k++)
if (k == mapvals.light_selected)
mapvals.lightsource[k].active = TRUE;
else
mapvals.lightsource[k].active = FALSE;
}
else
{
mapvals.light_isolated = FALSE;
for (k = 0; k < NUM_LIGHTS; k++)
mapvals.lightsource[k].active = TRUE;
}
interactive_preview_callback (NULL);
}
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