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gimp/plug-ins/lighting/lighting-ui.c

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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 3 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, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <errno.h>
#include <glib/gstdio.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "lighting-ui.h"
#include "lighting-main.h"
#include "lighting-icons.h"
#include "lighting-image.h"
#include "lighting-apply.h"
#include "lighting-preview.h"
#include "libgimp/stdplugins-intl.h"
extern LightingValues mapvals;
static GtkWidget *appwin = NULL;
static GtkNotebook *options_note_book = NULL;
GtkWidget *previewarea = NULL;
GtkWidget *spin_pos_x = NULL;
GtkWidget *spin_pos_y = NULL;
GtkWidget *spin_pos_z = NULL;
GtkWidget *spin_dir_x = NULL;
GtkWidget *spin_dir_y = NULL;
GtkWidget *spin_dir_z = 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);
static void toggle_update (GtkWidget *widget,
gpointer data);
static void distance_update (GimpLabelSpin *scale,
gpointer data);
static gboolean bumpmap_constrain (GimpImage *image,
GimpItem *item,
gpointer data);
static gboolean envmap_constrain (GimpImage *image,
GimpItem *item,
gpointer data);
static void envmap_combo_callback (GtkWidget *widget,
gpointer data);
static void save_lighting_preset (GtkWidget *widget,
gpointer data);
static void save_preset_response (GtkFileChooser *chooser,
gint response_id,
gpointer data);
static void load_lighting_preset (GtkWidget *widget,
gpointer data);
static void load_preset_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);
static GtkWidget * spin_button_new (GtkAdjustment **adjustment, /* return value */
gdouble value,
gdouble lower,
gdouble upper,
gdouble step_increment,
gdouble page_increment,
gdouble page_size,
gdouble climb_rate,
guint digits);
/**********************/
/* Std. toggle update */
/**********************/
static void
toggle_update (GtkWidget *widget,
gpointer data)
{
gimp_toggle_button_update (widget, data);
preview_compute ();
gtk_widget_queue_draw (previewarea);
}
static void
distance_update (GimpLabelSpin *scale,
gpointer data)
{
mapvals.viewpoint.z = gimp_label_spin_get_value (scale);
preview_compute ();
gtk_widget_queue_draw (previewarea);
}
/*****************************************/
/* 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);
}
if (widget == light_type_combo)
{
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;
}
}
}
static void
mapmenu2_callback (GtkWidget *widget,
gpointer data)
{
gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget), (gint *) data);
preview_compute ();
gtk_widget_queue_draw (previewarea);
}
/******************************************/
/* Main window "Preview!" button callback */
/******************************************/
static void
preview_callback (GtkWidget *widget)
{
preview_compute ();
gtk_widget_queue_draw (previewarea);
}
/*********************************************/
/* 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 (GimpImage *image,
GimpItem *item,
gpointer data)
{
GimpDrawable *dr = gimp_drawable_get_by_id (mapvals.drawable_id);
return ((gimp_drawable_width (GIMP_DRAWABLE (item)) ==
gimp_drawable_width (dr)) &&
(gimp_drawable_height (GIMP_DRAWABLE (item)) ==
gimp_drawable_height (dr)));
}
static gint
envmap_constrain (GimpImage *image,
GimpItem *item,
gpointer data)
{
return (! gimp_drawable_is_gray (GIMP_DRAWABLE (item)) &&
! gimp_drawable_has_alpha (GIMP_DRAWABLE (item)));
}
static void
envmap_combo_callback (GtkWidget *widget,
gpointer data)
{
GimpDrawable *env;
gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget),
&mapvals.envmap_id);
env = gimp_drawable_get_by_id (mapvals.envmap_id);
env_width = gimp_drawable_width (env);
env_height = gimp_drawable_height (env);
}
/***********************/
/* Dialog constructors */
/***********************/
static GtkWidget *
create_options_page (void)
{
GtkWidget *page;
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *toggle;
GtkWidget *scale;
page = gtk_box_new (GTK_ORIENTATION_VERTICAL, 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_box_new (GTK_ORIENTATION_VERTICAL, 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);
scale = gimp_scale_entry_new (_("Distance:"), mapvals.viewpoint.z, 0.0, 2.0, 3);
gimp_help_set_help_data (scale,
"Distance of observer from surface",
"plug-in-lighting");
g_signal_connect (scale, "value-changed",
G_CALLBACK (distance_update),
NULL);
gtk_box_pack_start (GTK_BOX (vbox), scale, FALSE, FALSE, 12);
gtk_widget_show (scale);
gtk_widget_show (page);
return page;
}
/******************************/
/* Create light settings page */
/******************************/
static GtkWidget *
create_light_page (void)
{
GtkWidget *page;
GtkWidget *frame;
GtkWidget *grid;
GtkWidget *button;
GtkAdjustment *adj;
GtkWidget *label;
gint k = mapvals.light_selected;
page = gtk_box_new (GTK_ORIENTATION_VERTICAL, 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);
grid = gtk_grid_new ();
gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
gtk_container_add (GTK_CONTAINER (frame), grid);
gtk_widget_show (grid);
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);
gtk_widget_set_margin_end (lightselect_combo, 12);
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (lightselect_combo), k);
gtk_grid_attach (GTK_GRID (grid), lightselect_combo, 0, 0, 2, 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_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_grid_attach (GTK_GRID (grid), label, 0, 1, 1, 1);
gtk_widget_show (label);
label = gtk_label_new (_("Color:"));
gtk_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_grid_attach (GTK_GRID (grid), label, 0, 2, 1, 1);
gtk_widget_show (label);
light_type_combo =
gimp_int_combo_box_new (C_("light-source", "None"), NO_LIGHT,
_("Directional"), DIRECTIONAL_LIGHT,
_("Point"), POINT_LIGHT,
/* _("Spot"), SPOT_LIGHT, */
NULL);
gtk_widget_set_margin_end (light_type_combo, 12);
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (light_type_combo),
mapvals.lightsource[k].type);
gtk_grid_attach (GTK_GRID (grid), light_type_combo, 1, 1, 1, 1);
gtk_widget_show (light_type_combo);
g_signal_connect (light_type_combo, "changed",
G_CALLBACK (apply_settings),
NULL);
gimp_help_set_help_data (light_type_combo,
_("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);
gtk_widget_set_halign (colorbutton, GTK_ALIGN_START);
gtk_widget_set_margin_end (colorbutton, 12);
gimp_color_button_set_update (GIMP_COLOR_BUTTON (colorbutton), TRUE);
gtk_widget_show (colorbutton);
gtk_grid_attach (GTK_GRID (grid), colorbutton, 1, 2, 1, 1);
g_signal_connect (colorbutton, "color-changed",
G_CALLBACK (apply_settings),
NULL);
gimp_help_set_help_data (colorbutton,
_("Set light source color"), NULL);
spin_intensity = spin_button_new (&adj,
mapvals.lightsource[k].intensity,
0.0, 100.0,
0.01, 0.1, 0.0, 0.0, 2);
gtk_widget_set_halign (spin_intensity, GTK_ALIGN_START);
gtk_widget_set_margin_end (spin_intensity, 12);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, 3,
_("_Intensity:"), 0.0, 0.5,
spin_intensity, 1);
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_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_grid_attach (GTK_GRID (grid), label, 3, 0, 1, 1);
gtk_widget_show (label);
spin_pos_x = spin_button_new (&adj,
mapvals.lightsource[k].position.x,
-100.0, 100.0,
0.1, 1.0, 0.0, 0.0, 2);
gtk_widget_set_halign (spin_pos_x, GTK_ALIGN_START);
gtk_widget_set_margin_end (spin_pos_x, 12);
gimp_grid_attach_aligned (GTK_GRID (grid), 2, 1,
_("_X:"), 0.0, 0.5,
spin_pos_x, 1);
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 = spin_button_new (&adj,
mapvals.lightsource[k].position.y,
-100.0, 100.0,
0.1, 1.0, 0.0, 0.0, 2);
gtk_widget_set_halign (spin_pos_y, GTK_ALIGN_START);
gtk_widget_set_margin_end (spin_pos_y, 12);
gimp_grid_attach_aligned (GTK_GRID (grid), 2, 2,
_("_Y:"), 0.0, 0.5,
spin_pos_y, 1);
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 = spin_button_new (&adj,
mapvals.lightsource[k].position.z,
-100.0, 100.0,
0.1, 1.0, 0.0, 0.0, 2);
gtk_widget_set_halign (spin_pos_z, GTK_ALIGN_START);
gtk_widget_set_margin_end (spin_pos_z, 12);
gimp_grid_attach_aligned (GTK_GRID (grid), 2, 3,
_("_Z:"), 0.0, 0.5,
spin_pos_z, 1);
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_label_set_xalign (GTK_LABEL (label), 0.0);
gtk_grid_attach (GTK_GRID (grid), label, 5, 0, 1, 1);
gtk_widget_show (label);
spin_dir_x = spin_button_new (&adj,
mapvals.lightsource[k].direction.x,
-100.0, 100.0, 0.1, 1.0, 0.0, 0.0, 2);
gtk_widget_set_halign (spin_dir_x, GTK_ALIGN_START);
gimp_grid_attach_aligned (GTK_GRID (grid), 4, 1,
_("X:"), 0.0, 0.5,
spin_dir_x, 1);
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 = spin_button_new (&adj,
mapvals.lightsource[k].direction.y,
-100.0, 100.0, 0.1, 1.0, 0.0, 0.0, 2);
gtk_widget_set_halign (spin_dir_y, GTK_ALIGN_START);
gimp_grid_attach_aligned (GTK_GRID (grid), 4, 2,
_("Y:"), 0.0, 0.5,
spin_dir_y, 1);
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 = spin_button_new (&adj,
mapvals.lightsource[k].direction.z,
-100.0, 100.0, 0.1, 1.0, 0.0, 0.0, 2);
gtk_widget_set_halign (spin_dir_z, GTK_ALIGN_START);
gimp_grid_attach_aligned (GTK_GRID (grid), 4, 3,
_("Z:"), 0.0, 0.5,
spin_dir_z, 1);
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_check_button_new_with_mnemonic (_("I_solate"));
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_grid_attach (GTK_GRID (grid), isolate_button, 0, 5, 1, 1);
gtk_widget_show (isolate_button);
label = gtk_label_new (_("Lighting preset:"));
gtk_label_set_xalign (GTK_LABEL (label), 1.0);
gtk_grid_attach (GTK_GRID (grid), label, 0, 6, 2, 1);
gtk_widget_show (label);
button = gtk_button_new_with_mnemonic (_("_Save"));
gtk_grid_attach (GTK_GRID (grid), button, 2, 6, 2, 1);
g_signal_connect (button, "clicked",
G_CALLBACK (save_lighting_preset),
NULL);
gtk_widget_show (button);
button = gtk_button_new_with_mnemonic (_("_Open"));
gtk_grid_attach (GTK_GRID (grid), button, 4, 6, 2, 1);
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 *grid;
GtkWidget *label;
GtkWidget *hbox;
GtkWidget *spinbutton;
GtkWidget *image;
GtkWidget *button;
GtkAdjustment *adj;
page = gtk_box_new (GTK_ORIENTATION_VERTICAL, 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_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_widget_set_halign (hbox, GTK_ALIGN_START);
gtk_container_add (GTK_CONTAINER (frame), hbox);
gtk_widget_show (hbox);
grid = gtk_grid_new ();
gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
gtk_box_pack_start (GTK_BOX (hbox), grid, FALSE, FALSE, 0);
gtk_widget_show (grid);
/* Ambient intensity */
image = gtk_image_new_from_icon_name (LIGHTING_INTENSITY_AMBIENT_LOW,
GTK_ICON_SIZE_BUTTON);
label = gimp_grid_attach_aligned (GTK_GRID (grid), 0, 0,
_("_Glowing:"), 0.0, 0.5,
image, 1);
gtk_size_group_add_widget (group, label);
spinbutton = spin_button_new (&adj, mapvals.material.ambient_int,
0, G_MAXFLOAT, 0.01, 0.1, 0.0, 0.0, 2);
gtk_grid_attach (GTK_GRID (grid), spinbutton, 2, 0, 1, 1);
gtk_widget_show (spinbutton);
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_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_icon_name (LIGHTING_INTENSITY_AMBIENT_HIGH,
GTK_ICON_SIZE_BUTTON);
gtk_grid_attach (GTK_GRID (grid), image, 3, 0, 1, 1);
gtk_widget_show (image);
/* Diffuse intensity */
image = gtk_image_new_from_icon_name (LIGHTING_INTENSITY_DIFFUSE_LOW,
GTK_ICON_SIZE_BUTTON);
label = gimp_grid_attach_aligned (GTK_GRID (grid), 0, 1,
_("_Bright:"), 0.0, 0.5,
image, 1);
gtk_size_group_add_widget (group, label);
spinbutton = spin_button_new (&adj, mapvals.material.diffuse_int,
0, G_MAXFLOAT, 0.01, 0.1, 0.0, 0.0, 2);
gtk_grid_attach (GTK_GRID (grid), spinbutton, 2, 1, 1, 1);
gtk_widget_show (spinbutton);
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_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_icon_name (LIGHTING_INTENSITY_DIFFUSE_HIGH,
GTK_ICON_SIZE_BUTTON);
gtk_grid_attach (GTK_GRID (grid), image, 3, 1, 1, 1);
gtk_widget_show (image);
/* Specular reflection */
image = gtk_image_new_from_icon_name (LIGHTING_REFLECTIVITY_SPECULAR_LOW,
GTK_ICON_SIZE_BUTTON);
label = gimp_grid_attach_aligned (GTK_GRID (grid), 0, 2,
_("_Shiny:"), 0.0, 0.5,
image, 1);
gtk_size_group_add_widget (group, label);
spinbutton = spin_button_new (&adj, mapvals.material.specular_ref,
0, G_MAXFLOAT, 0.01, 0.1, 0.0, 0.0, 2);
gtk_grid_attach (GTK_GRID (grid), spinbutton, 2, 2, 1, 1);
gtk_widget_show (spinbutton);
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_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_icon_name (LIGHTING_REFLECTIVITY_SPECULAR_HIGH,
GTK_ICON_SIZE_BUTTON);
gtk_grid_attach (GTK_GRID (grid), image, 3, 2, 1, 1);
gtk_widget_show (image);
/* Highlight */
image = gtk_image_new_from_icon_name (LIGHTING_REFLECTIVITY_HIGHLIGHT_LOW,
GTK_ICON_SIZE_BUTTON);
label = gimp_grid_attach_aligned (GTK_GRID (grid), 0, 3,
_("_Polished:"), 0.0, 0.5,
image, 1);
gtk_size_group_add_widget (group, label);
spinbutton = spin_button_new (&adj, mapvals.material.highlight,
0, G_MAXFLOAT, 0.01, 0.1, 0.0, 0.0, 2);
gtk_grid_attach (GTK_GRID (grid), spinbutton, 2, 3, 1, 1);
gtk_widget_show (spinbutton);
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_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_icon_name (LIGHTING_REFLECTIVITY_HIGHLIGHT_HIGH,
GTK_ICON_SIZE_BUTTON);
gtk_grid_attach (GTK_GRID (grid), image, 3, 3, 1, 1);
gtk_widget_show (image);
/* Metallic */
button = gtk_check_button_new_with_mnemonic (_("_Metallic"));
gtk_grid_attach (GTK_GRID (grid), button, 0, 4, 3, 1);
gtk_widget_show (button);
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 (page);
return page;
}
/* Create Bump mapping page */
static GtkWidget *
create_bump_page (void)
{
GtkWidget *page;
GtkWidget *toggle;
GtkWidget *frame;
GtkWidget *grid;
GtkWidget *combo;
GtkWidget *spinbutton;
GtkAdjustment *adj;
page = gtk_box_new (GTK_ORIENTATION_VERTICAL, 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);
grid = gtk_grid_new ();
gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
gtk_container_add (GTK_CONTAINER (frame), grid);
gtk_widget_show (grid);
g_object_bind_property (toggle, "active",
grid, "sensitive",
G_BINDING_SYNC_CREATE);
combo = gimp_drawable_combo_box_new (bumpmap_constrain, NULL, 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, NULL);
g_signal_connect (combo, "changed",
G_CALLBACK (mapmenu2_callback),
&mapvals.bumpmap_id);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, 0,
_("Bumpm_ap image:"), 0.0, 0.5,
combo, 1);
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_grid_attach_aligned (GTK_GRID (grid), 0, 1,
_("Cu_rve:"), 0.0, 0.5, combo, 1);
spinbutton = spin_button_new (&adj, mapvals.bumpmax,
0, G_MAXFLOAT, 0.01, 0.1, 0.0, 0.0, 2);
gtk_widget_set_halign (spinbutton, GTK_ALIGN_START);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, 2,
_("Ma_ximum height:"), 0.0, 0.5,
spinbutton, 1);
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 *grid;
GtkWidget *frame;
GtkWidget *combo;
page = gtk_box_new (GTK_ORIENTATION_VERTICAL, 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);
grid = gtk_grid_new ();
gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
gtk_grid_set_row_spacing (GTK_GRID (grid), 6);
gtk_container_add (GTK_CONTAINER (frame), grid);
gtk_widget_show (grid);
g_object_bind_property (toggle, "active",
grid, "sensitive",
G_BINDING_SYNC_CREATE);
combo = gimp_drawable_combo_box_new (envmap_constrain, NULL, NULL);
gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo), mapvals.envmap_id,
G_CALLBACK (envmap_combo_callback),
NULL, NULL);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, 0,
_("En_vironment image:"), 0.0, 0.5,
combo, 1);
gimp_help_set_help_data (combo, _("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;
gchar *path;
gboolean run = FALSE;
/*
GtkWidget *image;
*/
gimp_ui_init (PLUG_IN_BINARY);
path = gimp_gimprc_query ("lighting-effects-path");
if (path)
{
lighting_effects_path = g_filename_from_utf8 (path, -1, NULL, NULL, NULL);
g_free (path);
}
lighting_icons_init ();
appwin = gimp_dialog_new (_("Lighting Effects"), PLUG_IN_ROLE,
NULL, 0,
gimp_standard_help_func, PLUG_IN_PROC,
_("_Cancel"), GTK_RESPONSE_CANCEL,
_("_OK"), GTK_RESPONSE_OK,
NULL);
gimp_dialog_set_alternative_button_order (GTK_DIALOG (appwin),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gimp_window_set_transient (GTK_WINDOW (appwin));
main_hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_hbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (appwin))),
main_hbox, FALSE, FALSE, 0);
gtk_widget_show (main_hbox);
/* Create the Preview */
/* ================== */
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 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);
g_signal_connect (previewarea, "draw",
G_CALLBACK (preview_draw),
previewarea);
gtk_container_add (GTK_CONTAINER (frame), previewarea);
gtk_widget_show (previewarea);
/* create preview options, frame and vbox */
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 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 (gtk_widget_get_window (previewarea), cursor);
g_object_unref (cursor);
}
if (image_setup (drawable, TRUE))
preview_compute ();
if (gimp_dialog_run (GIMP_DIALOG (appwin)) == GTK_RESPONSE_OK)
run = TRUE;
if (preview_rgb_data != NULL)
g_free (preview_rgb_data);
if (preview_surface != NULL)
cairo_surface_destroy (preview_surface);
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,
_("_Cancel"), GTK_RESPONSE_CANCEL,
_("_Save"), GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_default_response (GTK_DIALOG (window), GTK_RESPONSE_OK);
gimp_dialog_set_alternative_button_order (GTK_DIALOG (window),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (window),
TRUE);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed),
&window);
g_signal_connect (window, "response",
G_CALLBACK (save_preset_response),
NULL);
}
if (lighting_effects_path)
{
GList *list;
gchar *dir;
list = gimp_path_parse (lighting_effects_path, 256, FALSE, NULL);
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
save_preset_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 = g_fopen (filename, "wb");
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);
}
g_free (filename);
}
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,
_("_Cancel"), GTK_RESPONSE_CANCEL,
_("_Open"), GTK_RESPONSE_OK,
NULL);
gtk_dialog_set_default_response (GTK_DIALOG (window), GTK_RESPONSE_OK);
gimp_dialog_set_alternative_button_order (GTK_DIALOG (window),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed),
&window);
g_signal_connect (window, "response",
G_CALLBACK (load_preset_response),
NULL);
}
if (lighting_effects_path)
{
GList *list;
gchar *dir;
list = gimp_path_parse (lighting_effects_path, 256, FALSE, NULL);
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_preset_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[21];
gchar *endptr;
gchar fmt_str[32];
if (response_id == GTK_RESPONSE_OK)
{
gchar *filename = gtk_file_chooser_get_filename (chooser);
fp = g_fopen (filename, "rb");
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: %20s", 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;
}
snprintf (fmt_str, sizeof (fmt_str),
" Position: %%%" G_GSIZE_FORMAT "s %%%" G_GSIZE_FORMAT "s %%%" G_GSIZE_FORMAT "s",
sizeof (buffer1) - 1,
sizeof (buffer2) - 1,
sizeof (buffer3) - 1);
fscanf (fp, fmt_str, 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);
snprintf (fmt_str, sizeof (fmt_str),
" Direction: %%%" G_GSIZE_FORMAT "s %%%" G_GSIZE_FORMAT "s %%%" G_GSIZE_FORMAT "s",
sizeof (buffer1) - 1,
sizeof (buffer2) - 1,
sizeof (buffer3) - 1);
fscanf (fp, fmt_str, 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);
snprintf (fmt_str, sizeof (fmt_str),
" Color: %%%" G_GSIZE_FORMAT "s %%%" G_GSIZE_FORMAT "s %%%" G_GSIZE_FORMAT "s",
sizeof (buffer1) - 1,
sizeof (buffer2) - 1,
sizeof (buffer3) - 1);
fscanf (fp, fmt_str, 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;
snprintf (fmt_str, sizeof (fmt_str),
" Intensity: %%%" G_GSIZE_FORMAT "s",
sizeof (buffer1) - 1);
fscanf (fp, fmt_str, buffer1);
source->intensity = g_ascii_strtod (buffer1, &endptr);
}
fclose (fp);
}
g_free (filename);
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;
/* 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);
}
static GtkWidget *
spin_button_new (GtkAdjustment **adjustment, /* return value */
gdouble value,
gdouble lower,
gdouble upper,
gdouble step_increment,
gdouble page_increment,
gdouble page_size,
gdouble climb_rate,
guint digits)
{
GtkWidget *spinbutton;
*adjustment = gtk_adjustment_new (value, lower, upper,
step_increment, page_increment, 0);
spinbutton = gimp_spin_button_new (*adjustment,
climb_rate, digits);
gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
return spinbutton;
}
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