void
gimp_image_set_colormap (GimpImage *image,
const guchar *colormap,
gint n_colors,
gboolean push_undo)
{
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);
if (push_undo)
gimp_image_undo_push_image_colormap (image, _("Set Colormap"));
if (image->colormap)
memset (image->colormap, 0, GIMP_IMAGE_COLORMAP_SIZE);
if (colormap)
{
if (! image->colormap)
image->colormap = g_new0 (guchar, GIMP_IMAGE_COLORMAP_SIZE);
memcpy (image->colormap, colormap, n_colors * 3);
}
else if (! gimp_image_base_type (image) == GIMP_INDEXED)
{
if (image->colormap)
g_free (image->colormap);
image->colormap = NULL;
}
image->n_colors = n_colors;
gimp_image_colormap_changed (image, -1);
}
void
gimp_image_add_colormap_entry (GimpImage *image,
const GimpRGB *color)
{
g_return_if_fail (GIMP_IS_IMAGE (image));
g_return_if_fail (image->colormap != NULL);
g_return_if_fail (image->n_colors < 256);
g_return_if_fail (color != NULL);
gimp_image_undo_push_image_colormap (image,
_("Add Color to Colormap"));
gimp_rgb_get_uchar (color,
&image->colormap[image->n_colors * 3],
&image->colormap[image->n_colors * 3 + 1],
&image->colormap[image->n_colors * 3 + 2]);
image->n_colors++;
gimp_image_colormap_changed (image, -1);
}
void
gimp_image_set_colormap_entry (GimpImage *image,
gint color_index,
const GimpRGB *color,
gboolean push_undo)
{
g_return_if_fail (GIMP_IS_IMAGE (image));
g_return_if_fail (image->colormap != NULL);
g_return_if_fail (color_index >= 0 && color_index < image->n_colors);
g_return_if_fail (color != NULL);
if (push_undo)
gimp_image_undo_push_image_colormap (image,
_("Change Colormap entry"));
gimp_rgb_get_uchar (color,
&image->colormap[color_index * 3],
&image->colormap[color_index * 3 + 1],
&image->colormap[color_index * 3 + 2]);
gimp_image_colormap_changed (image, color_index);
}
static void
gimp_image_undo_pop (GimpUndo *undo,
GimpUndoMode undo_mode,
GimpUndoAccumulator *accum)
{
GimpImageUndo *image_undo = GIMP_IMAGE_UNDO (undo);
GimpImage *image = undo->image;
GimpImagePrivate *private = GIMP_IMAGE_GET_PRIVATE (image);
GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
switch (undo->undo_type)
{
case GIMP_UNDO_IMAGE_TYPE:
{
GimpImageBaseType base_type;
base_type = image_undo->base_type;
image_undo->base_type = gimp_image_base_type (image);
g_object_set (image, "base-type", base_type, NULL);
gimp_image_colormap_changed (image, -1);
if (image_undo->base_type != gimp_image_base_type (image))
accum->mode_changed = TRUE;
}
break;
case GIMP_UNDO_IMAGE_SIZE:
{
gint width;
gint height;
gint previous_origin_x;
gint previous_origin_y;
gint previous_width;
gint previous_height;
width = image_undo->width;
height = image_undo->height;
previous_origin_x = image_undo->previous_origin_x;
previous_origin_y = image_undo->previous_origin_y;
previous_width = image_undo->previous_width;
previous_height = image_undo->previous_height;
/* Transform to a redo */
image_undo->width = gimp_image_get_width (image);
image_undo->height = gimp_image_get_height (image);
image_undo->previous_origin_x = -previous_origin_x;
image_undo->previous_origin_y = -previous_origin_y;
image_undo->previous_width = width;
image_undo->previous_height = height;
g_object_set (image,
"width", width,
"height", height,
NULL);
gimp_drawable_invalidate_boundary
(GIMP_DRAWABLE (gimp_image_get_mask (image)));
if (gimp_image_get_width (image) != image_undo->width ||
gimp_image_get_height (image) != image_undo->height)
{
accum->size_changed = TRUE;
accum->previous_origin_x = previous_origin_x;
accum->previous_origin_y = previous_origin_y;
accum->previous_width = previous_width;
accum->previous_height = previous_height;
}
}
break;
case GIMP_UNDO_IMAGE_RESOLUTION:
{
gdouble xres;
gdouble yres;
gimp_image_get_resolution (image, &xres, &yres);
if (ABS (image_undo->xresolution - xres) >= 1e-5 ||
ABS (image_undo->yresolution - yres) >= 1e-5)
{
private->xresolution = image_undo->xresolution;
private->yresolution = image_undo->yresolution;
image_undo->xresolution = xres;
image_undo->yresolution = yres;
accum->resolution_changed = TRUE;
}
}
