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gimp/app/actions/gradients-commands.c

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/* The GIMP -- an 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 <stdio.h>
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets/widgets-types.h"
#include "core/gimpgradient.h"
#include "core/gimpcontext.h"
#include "widgets/gimpcontainerview.h"
#include "widgets/gimpdatafactoryview.h"
#include "widgets/gimpitemfactory.h"
#include "widgets/gimpwidgets-utils.h"
#include "gradients-commands.h"
#include "libgimp/gimpintl.h"
/* local function prototypes */
static void gradients_save_as_pov_query (GimpContainerEditor *editor);
static void gradients_save_as_pov_ok_callback (GtkWidget *widget,
GimpGradient *gradient);
/* public functions */
void
gradients_save_as_pov_ray_cmd_callback (GtkWidget *widget,
gpointer data)
{
GimpContainerEditor *editor;
editor = (GimpContainerEditor *) gimp_widget_get_callback_context (widget);
if (! editor)
return;
gradients_save_as_pov_query (editor);
}
void
gradients_menu_update (GtkItemFactory *factory,
gpointer data)
{
GimpContainerEditor *editor;
GimpGradient *gradient;
editor = GIMP_CONTAINER_EDITOR (data);
gradient = gimp_context_get_gradient (editor->view->context);
#define SET_SENSITIVE(menu,condition) \
gimp_item_factory_set_sensitive (factory, menu, (condition) != 0)
SET_SENSITIVE ("/Duplicate Gradient",
gradient && GIMP_DATA_GET_CLASS (gradient)->duplicate);
SET_SENSITIVE ("/Edit Gradient...",
gradient && GIMP_DATA_FACTORY_VIEW (editor)->data_edit_func);
SET_SENSITIVE ("/Delete Gradient...",
gradient);
SET_SENSITIVE ("/Save as POV-Ray...",
gradient);
#undef SET_SENSITIVE
}
/* private functions */
static void
gradients_save_as_pov_query (GimpContainerEditor *editor)
{
GimpGradient *gradient;
GtkFileSelection *filesel;
gchar *title;
gradient = gimp_context_get_gradient (editor->view->context);
if (! gradient)
return;
title = g_strdup_printf (_("Save \"%s\" as POV-Ray"),
GIMP_OBJECT (gradient)->name);
filesel = GTK_FILE_SELECTION (gtk_file_selection_new (title));
g_free (title);
gtk_window_set_wmclass (GTK_WINDOW (filesel), "save_gradient", "Gimp");
gtk_window_set_position (GTK_WINDOW (filesel), GTK_WIN_POS_MOUSE);
gtk_container_set_border_width (GTK_CONTAINER (filesel), 2);
gtk_container_set_border_width (GTK_CONTAINER (filesel->button_area), 2);
g_signal_connect (G_OBJECT (filesel->ok_button), "clicked",
G_CALLBACK (gradients_save_as_pov_ok_callback),
gradient);
g_signal_connect_swapped (G_OBJECT (filesel->cancel_button), "clicked",
G_CALLBACK (gtk_widget_destroy),
filesel);
g_signal_connect_swapped (G_OBJECT (filesel), "delete_event",
G_CALLBACK (gtk_widget_destroy),
filesel);
g_object_ref (G_OBJECT (gradient));
g_signal_connect_object (G_OBJECT (filesel), "destroy",
G_CALLBACK (g_object_unref),
G_OBJECT (gradient),
G_CONNECT_SWAPPED);
/* Connect the "F1" help key */
gimp_help_connect (GTK_WIDGET (filesel), gimp_standard_help_func,
"dialogs/save_as_povray.html");
gtk_widget_show (GTK_WIDGET (filesel));
}
static void
gradients_save_as_pov_ok_callback (GtkWidget *widget,
GimpGradient *gradient)
{
GtkFileSelection *filesel;
const gchar *filename;
FILE *file;
GimpGradientSegment *seg;
gchar buf[3][G_ASCII_DTOSTR_BUF_SIZE];
filesel = GTK_FILE_SELECTION (gtk_widget_get_toplevel (widget));
filename = gtk_file_selection_get_filename (filesel);
file = fopen (filename, "wb");
if (!file)
{
g_message ("Could not open \"%s\"", filename);
}
else
{
fprintf (file, "/* color_map file created by the GIMP */\n");
fprintf (file, "/* http://www.gimp.org/ */\n");
fprintf (file, "color_map {\n");
for (seg = gradient->segments; seg; seg = seg->next)
{
/* Left */
g_ascii_formatd (buf[0], G_ASCII_DTOSTR_BUF_SIZE, "%f",
seg->left_color.r);
g_ascii_formatd (buf[1], G_ASCII_DTOSTR_BUF_SIZE, "%f",
seg->left_color.g);
g_ascii_formatd (buf[2], G_ASCII_DTOSTR_BUF_SIZE, "%f",
seg->left_color.b);
g_ascii_formatd (buf[3], G_ASCII_DTOSTR_BUF_SIZE, "%f",
1.0 - seg->left_color.a);
fprintf (file, "\t[%f color rgbt <%s, %s, %s, %s>]\n",
seg->left,
buf[0], buf[1], buf[2], buf[3]);
/* Middle */
g_ascii_formatd (buf[0], G_ASCII_DTOSTR_BUF_SIZE, "%f",
(seg->left_color.r + seg->right_color.r) / 2.0);
g_ascii_formatd (buf[1], G_ASCII_DTOSTR_BUF_SIZE, "%f",
(seg->left_color.g + seg->right_color.g) / 2.0);
g_ascii_formatd (buf[2], G_ASCII_DTOSTR_BUF_SIZE, "%f",
(seg->left_color.b + seg->right_color.b) / 2.0);
g_ascii_formatd (buf[3], G_ASCII_DTOSTR_BUF_SIZE, "%f",
1.0 - (seg->left_color.a + seg->right_color.a) / 2.0);
fprintf (file, "\t[%f color rgbt <%s, %s, %s, %s>]\n",
seg->middle,
buf[0], buf[1], buf[2], buf[3]);
/* Right */
g_ascii_formatd (buf[0], G_ASCII_DTOSTR_BUF_SIZE, "%f",
seg->right_color.r);
g_ascii_formatd (buf[1], G_ASCII_DTOSTR_BUF_SIZE, "%f",
seg->right_color.g);
g_ascii_formatd (buf[2], G_ASCII_DTOSTR_BUF_SIZE, "%f",
seg->right_color.b);
g_ascii_formatd (buf[3], G_ASCII_DTOSTR_BUF_SIZE, "%f",
1.0 - seg->right_color.a);
fprintf (file, "\t[%f color rgbt <%s, %s, %s, %s>]\n",
seg->right,
buf[0], buf[1], buf[2], buf[3]);
}
fprintf (file, "} /* color_map */\n");
fclose (file);
}
gtk_widget_destroy (GTK_WIDGET (filesel));
}
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