/* 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 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 .
*/
#include "config.h"
#include
#include
#include
#include
#include "libgimpcolor/gimpcolor.h"
#include "core-types.h"
#include "gimp.h"
#include "gimpcontainer.h"
#include "gimpdatafactory.h"
#include "gimpimage.h"
#include "gimpimage-colormap.h"
#include "gimpimage-private.h"
#include "gimpimage-undo-push.h"
#include "gimppalette.h"
#include "gimp-intl.h"
/* local function prototype */
static void gimp_image_colormap_set_palette_entry (GimpImage *image,
const GimpRGB *color,
gint index);
/* public functions */
void
gimp_image_colormap_init (GimpImage *image)
{
GimpImagePrivate *private;
GimpContainer *palettes;
gchar *palette_name;
gchar *palette_id;
g_return_if_fail (GIMP_IS_IMAGE (image));
private = GIMP_IMAGE_GET_PRIVATE (image);
g_return_if_fail (private->colormap == NULL);
g_return_if_fail (private->palette == NULL);
palette_name = g_strdup_printf (_("Colormap of Image #%d (%s)"),
gimp_image_get_ID (image),
gimp_image_get_display_name (image));
palette_id = g_strdup_printf ("gimp-indexed-image-palette-%d",
gimp_image_get_ID (image));
private->n_colors = 0;
private->colormap = g_new0 (guchar, GIMP_IMAGE_COLORMAP_SIZE);
private->palette = GIMP_PALETTE (gimp_palette_new (NULL, palette_name));
if (! private->babl_palette_rgb)
{
gchar *format_name = g_strdup_printf ("-gimp-indexed-format-%d",
gimp_image_get_ID (image));
babl_new_palette (format_name,
&private->babl_palette_rgb,
&private->babl_palette_rgba);
g_free (format_name);
}
gimp_palette_set_columns (private->palette, 16);
gimp_data_make_internal (GIMP_DATA (private->palette), palette_id);
palettes = gimp_data_factory_get_container (image->gimp->palette_factory);
gimp_container_add (palettes, GIMP_OBJECT (private->palette));
g_free (palette_name);
g_free (palette_id);
}
void
gimp_image_colormap_dispose (GimpImage *image)
{
GimpImagePrivate *private;
GimpContainer *palettes;
g_return_if_fail (GIMP_IS_IMAGE (image));
private = GIMP_IMAGE_GET_PRIVATE (image);
g_return_if_fail (private->colormap != NULL);
g_return_if_fail (GIMP_IS_PALETTE (private->palette));
palettes = gimp_data_factory_get_container (image->gimp->palette_factory);
gimp_container_remove (palettes, GIMP_OBJECT (private->palette));
}
void
gimp_image_colormap_free (GimpImage *image)
{
GimpImagePrivate *private;
g_return_if_fail (GIMP_IS_IMAGE (image));
private = GIMP_IMAGE_GET_PRIVATE (image);
g_return_if_fail (private->colormap != NULL);
g_return_if_fail (GIMP_IS_PALETTE (private->palette));
g_clear_pointer (&private->colormap, g_free);
g_clear_object (&private->palette);
/* don't touch the image's babl_palettes because we might still have
* buffers with that palette on the undo stack, and on undoing the
* image back to indexed, we must have exactly these palettes around
*/
}
const Babl *
gimp_image_colormap_get_rgb_format (GimpImage *image)
{
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
return GIMP_IMAGE_GET_PRIVATE (image)->babl_palette_rgb;
}
const Babl *
gimp_image_colormap_get_rgba_format (GimpImage *image)
{
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
return GIMP_IMAGE_GET_PRIVATE (image)->babl_palette_rgba;
}
GimpPalette *
gimp_image_get_colormap_palette (GimpImage *image)
{
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
return GIMP_IMAGE_GET_PRIVATE (image)->palette;
}
const guchar *
gimp_image_get_colormap (GimpImage *image)
{
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
return GIMP_IMAGE_GET_PRIVATE (image)->colormap;
}
gint
gimp_image_get_colormap_size (GimpImage *image)
{
g_return_val_if_fail (GIMP_IS_IMAGE (image), 0);
return GIMP_IMAGE_GET_PRIVATE (image)->n_colors;
}
void
gimp_image_set_colormap (GimpImage *image,
const guchar *colormap,
gint n_colors,
gboolean push_undo)
{
GimpImagePrivate *private;
GimpPaletteEntry *entry;
gint i;
g_return_if_fail (GIMP_IS_IMAGE (image));
g_return_if_fail (colormap != NULL || n_colors == 0);
g_return_if_fail (n_colors >= 0 && n_colors <= 256);
private = GIMP_IMAGE_GET_PRIVATE (image);
if (push_undo)
gimp_image_undo_push_image_colormap (image, C_("undo-type", "Set Colormap"));
if (private->colormap)
memset (private->colormap, 0, GIMP_IMAGE_COLORMAP_SIZE);
else
gimp_image_colormap_init (image);
if (colormap)
memcpy (private->colormap, colormap, n_colors * 3);
/* make sure the image's colormap always has at least one color. when
* n_colors == 0, use black.
*/
private->n_colors = MAX (n_colors, 1);
gimp_data_freeze (GIMP_DATA (private->palette));
while ((entry = gimp_palette_get_entry (private->palette, 0)))
gimp_palette_delete_entry (private->palette, entry);
for (i = 0; i < private->n_colors; i++)
gimp_image_colormap_set_palette_entry (image, NULL, i);
gimp_data_thaw (GIMP_DATA (private->palette));
gimp_image_colormap_changed (image, -1);
}
void
gimp_image_unset_colormap (GimpImage *image,
gboolean push_undo)
{
GimpImagePrivate *private;
g_return_if_fail (GIMP_IS_IMAGE (image));
private = GIMP_IMAGE_GET_PRIVATE (image);
if (push_undo)
gimp_image_undo_push_image_colormap (image,
C_("undo-type", "Unset Colormap"));
if (private->colormap)
{
gimp_image_colormap_dispose (image);
gimp_image_colormap_free (image);
}
private->n_colors = 0;
gimp_image_colormap_changed (image, -1);
}
void
gimp_image_get_colormap_entry (GimpImage *image,
gint color_index,
GimpRGB *color)
{
GimpImagePrivate *private;
g_return_if_fail (GIMP_IS_IMAGE (image));
private = GIMP_IMAGE_GET_PRIVATE (image);
g_return_if_fail (private->colormap != NULL);
g_return_if_fail (color_index >= 0 && color_index < private->n_colors);
g_return_if_fail (color != NULL);
gimp_rgba_set_uchar (color,
private->colormap[color_index * 3],
private->colormap[color_index * 3 + 1],
private->colormap[color_index * 3 + 2],
255);
}
void
gimp_image_set_colormap_entry (GimpImage *image,
gint color_index,
const GimpRGB *color,
gboolean push_undo)
{
GimpImagePrivate *private;
g_return_if_fail (GIMP_IS_IMAGE (image));
private = GIMP_IMAGE_GET_PRIVATE (image);
g_return_if_fail (private->colormap != NULL);
g_return_if_fail (color_index >= 0 && color_index < private->n_colors);
g_return_if_fail (color != NULL);
if (push_undo)
gimp_image_undo_push_image_colormap (image,
C_("undo-type", "Change Colormap entry"));
gimp_rgb_get_uchar (color,
&private->colormap[color_index * 3],
&private->colormap[color_index * 3 + 1],
&private->colormap[color_index * 3 + 2]);
if (private->palette)
gimp_image_colormap_set_palette_entry (image, color, color_index);
gimp_image_colormap_changed (image, color_index);
}
void
gimp_image_add_colormap_entry (GimpImage *image,
const GimpRGB *color)
{
GimpImagePrivate *private;
g_return_if_fail (GIMP_IS_IMAGE (image));
private = GIMP_IMAGE_GET_PRIVATE (image);
g_return_if_fail (private->colormap != NULL);
g_return_if_fail (private->n_colors < 256);
g_return_if_fail (color != NULL);
gimp_image_undo_push_image_colormap (image,
C_("undo-type", "Add Color to Colormap"));
gimp_rgb_get_uchar (color,
&private->colormap[private->n_colors * 3],
&private->colormap[private->n_colors * 3 + 1],
&private->colormap[private->n_colors * 3 + 2]);
private->n_colors++;
if (private->palette)
gimp_image_colormap_set_palette_entry (image, color, private->n_colors - 1);
gimp_image_colormap_changed (image, -1);
}
/* private functions */
static void
gimp_image_colormap_set_palette_entry (GimpImage *image,
const GimpRGB *c,
gint index)
{
GimpImagePrivate *private = GIMP_IMAGE_GET_PRIVATE (image);
GimpRGB color;
gchar name[64];
/* Avoid converting to char then back to double if we have the
* original GimpRGB color.
*/
if (c)
color = *c;
else
gimp_rgba_set_uchar (&color,
private->colormap[3 * index + 0],
private->colormap[3 * index + 1],
private->colormap[3 * index + 2],
255);
g_snprintf (name, sizeof (name), "#%d", index);
if (gimp_palette_get_n_colors (private->palette) < private->n_colors)
gimp_palette_add_entry (private->palette, index, name, &color);
else
gimp_palette_set_entry (private->palette, index, name, &color);
}