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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 <string.h>
#include <glib-object.h>
#include "libgimpcolor/gimpcolor.h"
#include "core-types.h"
#include "gimpimage.h"
#include "gimpimage-colormap.h"
#include "gimpimage-undo-push.h"
#include "gimp-intl.h"
guchar *
gimp_image_get_colormap (const GimpImage *gimage)
{
g_return_val_if_fail (GIMP_IS_IMAGE (gimage), NULL);
return gimage->cmap;
}
gint
gimp_image_get_colormap_size (const GimpImage *gimage)
{
g_return_val_if_fail (GIMP_IS_IMAGE (gimage), 0);
return gimage->num_cols;
}
void
gimp_image_set_colormap (GimpImage *gimage,
const guchar *cmap,
gint n_colors,
gboolean push_undo)
{
g_return_if_fail (GIMP_IS_IMAGE (gimage));
g_return_if_fail (cmap != NULL || n_colors == 0);
g_return_if_fail (n_colors >= 0 && n_colors <= 256);
if (push_undo)
gimp_image_undo_push_image_colormap (gimage, _("Set Colormap"));
if (cmap)
{
if (! gimage->cmap)
gimage->cmap = g_new0 (guchar, GIMP_IMAGE_COLORMAP_SIZE);
memcpy (gimage->cmap, cmap, n_colors * 3);
}
else
{
if (gimage->cmap)
g_free (gimage->cmap);
gimage->cmap = NULL;
}
gimage->num_cols = n_colors;
gimp_image_colormap_changed (gimage, -1);
}
void
gimp_image_get_colormap_entry (GimpImage *gimage,
gint color_index,
GimpRGB *color)
{
g_return_if_fail (GIMP_IS_IMAGE (gimage));
g_return_if_fail (gimage->cmap != NULL);
g_return_if_fail (color_index >= 0 && color_index < gimage->num_cols);
g_return_if_fail (color != NULL);
gimp_rgba_set_uchar (color,
gimage->cmap[color_index * 3],
gimage->cmap[color_index * 3 + 1],
gimage->cmap[color_index * 3 + 2],
OPAQUE_OPACITY);
}
void
gimp_image_set_colormap_entry (GimpImage *gimage,
gint color_index,
const GimpRGB *color,
gboolean push_undo)
{
g_return_if_fail (GIMP_IS_IMAGE (gimage));
g_return_if_fail (gimage->cmap != NULL);
g_return_if_fail (color_index >= 0 && color_index < gimage->num_cols);
g_return_if_fail (color != NULL);
if (push_undo)
gimp_image_undo_push_image_colormap (gimage,
_("Change Colormap entry"));
gimp_rgb_get_uchar (color,
&gimage->cmap[color_index * 3],
&gimage->cmap[color_index * 3 + 1],
&gimage->cmap[color_index * 3 + 2]);
gimp_image_colormap_changed (gimage, color_index);
}
void
gimp_image_add_colormap_entry (GimpImage *gimage,
const GimpRGB *color)
{
g_return_if_fail (GIMP_IS_IMAGE (gimage));
g_return_if_fail (gimage->cmap != NULL);
g_return_if_fail (gimage->num_cols < 256);
g_return_if_fail (color != NULL);
gimp_image_undo_push_image_colormap (gimage,
_("Add Color to Colormap"));
gimp_rgb_get_uchar (color,
&gimage->cmap[gimage->num_cols * 3],
&gimage->cmap[gimage->num_cols * 3 + 1],
&gimage->cmap[gimage->num_cols * 3 + 2]);
gimage->num_cols++;
gimp_image_colormap_changed (gimage, -1);
}
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