dallasgroot/Gimp
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Gimp/app/core/gimpdrawable.c
jaycox 5b5823ba4b Skip resources with unknown signatures instead of quiting. Fixes bug 
* plug-ins/common/psd.c: Skip resources with unknown signatures
	instead of quiting.  Fixes bug #142468, and bug #152728

	* app/core/gimpdrawable.c: in functions gimp_drawable_mask_bounds,
	and gimp_drawable_mask_intersect: reinitialize the return values
	after calling gimp_channel_bounds because gimp_channel_bounds
	overwrites the values even when it returns false.  This fixes the
	bug where the gimp crashes when running color tools on layers
	smaller than the image, and processes only part of the image when
	the layer is larger than the image size.
2004-11-10 08:23:05 +00:00

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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 <glib-object.h>
#include "libgimpcolor/gimpcolor.h"
#include "core-types.h"
#include "base/pixel-region.h"
#include "base/temp-buf.h"
#include "base/tile.h"
#include "base/tile-manager.h"
#include "paint-funcs/paint-funcs.h"
#include "gimp.h"
#include "gimp-utils.h"
#include "gimpchannel.h"
#include "gimpcontext.h"
#include "gimpdrawable-combine.h"
#include "gimpdrawable-preview.h"
#include "gimpdrawable-transform.h"
#include "gimpimage.h"
#include "gimpimage-undo-push.h"
#include "gimplayer.h"
#include "gimplayer-floating-sel.h"
#include "gimpmarshal.h"
#include "gimppattern.h"
#include "gimppickable.h"
#include "gimppreviewcache.h"
#include "gimpprogress.h"
#include "gimp-intl.h"
enum
{
UPDATE,
ALPHA_CHANGED,
LAST_SIGNAL
};
/* local function prototypes */
static void gimp_drawable_class_init (GimpDrawableClass *klass);
static void gimp_drawable_init (GimpDrawable *drawable);
static void gimp_drawable_pickable_iface_init (GimpPickableInterface *pickable_iface);
static void gimp_drawable_finalize (GObject *object);
static gint64 gimp_drawable_get_memsize (GimpObject *object,
gint64 *gui_size);
static void gimp_drawable_invalidate_preview (GimpViewable *viewable);
static GimpItem * gimp_drawable_duplicate (GimpItem *item,
GType new_type,
gboolean add_alpha);
static void gimp_drawable_translate (GimpItem *item,
gint offset_x,
gint offset_y,
gboolean push_undo);
static void gimp_drawable_scale (GimpItem *item,
gint new_width,
gint new_height,
gint new_offset_x,
gint new_offset_y,
GimpInterpolationType interp_type,
GimpProgress *progress);
static void gimp_drawable_resize (GimpItem *item,
GimpContext *context,
gint new_width,
gint new_height,
gint offset_x,
gint offset_y);
static void gimp_drawable_flip (GimpItem *item,
GimpContext *context,
GimpOrientationType flip_type,
gdouble axis,
gboolean clip_result);
static void gimp_drawable_rotate (GimpItem *item,
GimpContext *context,
GimpRotationType rotate_type,
gdouble center_x,
gdouble center_y,
gboolean clip_result);
static void gimp_drawable_transform (GimpItem *item,
GimpContext *context,
const GimpMatrix3 *matrix,
GimpTransformDirection direction,
GimpInterpolationType interpolation_type,
gboolean supersample,
gint recursion_level,
gboolean clip_result,
GimpProgress *progress);
static guchar * gimp_drawable_get_color_at (GimpPickable *pickable,
gint x,
gint y);
static void gimp_drawable_real_update (GimpDrawable *drawable,
gint x,
gint y,
gint width,
gint height);
static void gimp_drawable_real_set_tiles (GimpDrawable *drawable,
gboolean push_undo,
const gchar *undo_desc,
TileManager *tiles,
GimpImageType type,
gint offset_x,
gint offset_y);
static void gimp_drawable_real_push_undo (GimpDrawable *drawable,
const gchar *undo_desc,
TileManager *tiles,
gboolean sparse,
gint x,
gint y,
gint width,
gint height);
static void gimp_drawable_real_swap_pixels (GimpDrawable *drawable,
TileManager *tiles,
gboolean sparse,
gint x,
gint y,
gint width,
gint height);
/* private variables */
static guint gimp_drawable_signals[LAST_SIGNAL] = { 0 };
static GimpItemClass *parent_class = NULL;
GType
gimp_drawable_get_type (void)
{
static GType drawable_type = 0;
if (! drawable_type)
{
static const GTypeInfo drawable_info =
{
sizeof (GimpDrawableClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_drawable_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpDrawable),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_drawable_init,
};
static const GInterfaceInfo pickable_iface_info =
{
(GInterfaceInitFunc) gimp_drawable_pickable_iface_init,
NULL, /* iface_finalize */
NULL /* iface_data */
};
drawable_type = g_type_register_static (GIMP_TYPE_ITEM,
"GimpDrawable",
&drawable_info, 0);
g_type_add_interface_static (drawable_type, GIMP_TYPE_PICKABLE,
&pickable_iface_info);
}
return drawable_type;
}
static void
gimp_drawable_class_init (GimpDrawableClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpObjectClass *gimp_object_class = GIMP_OBJECT_CLASS (klass);
GimpViewableClass *viewable_class = GIMP_VIEWABLE_CLASS (klass);
GimpItemClass *item_class = GIMP_ITEM_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
gimp_drawable_signals[UPDATE] =
g_signal_new ("update",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpDrawableClass, update),
NULL, NULL,
gimp_marshal_VOID__INT_INT_INT_INT,
G_TYPE_NONE, 4,
G_TYPE_INT,
G_TYPE_INT,
G_TYPE_INT,
G_TYPE_INT);
gimp_drawable_signals[ALPHA_CHANGED] =
g_signal_new ("alpha_changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpDrawableClass, alpha_changed),
NULL, NULL,
gimp_marshal_VOID__VOID,
G_TYPE_NONE, 0);
object_class->finalize = gimp_drawable_finalize;
gimp_object_class->get_memsize = gimp_drawable_get_memsize;
viewable_class->invalidate_preview = gimp_drawable_invalidate_preview;
viewable_class->get_preview = gimp_drawable_get_preview;
item_class->duplicate = gimp_drawable_duplicate;
item_class->translate = gimp_drawable_translate;
item_class->scale = gimp_drawable_scale;
item_class->resize = gimp_drawable_resize;
item_class->flip = gimp_drawable_flip;
item_class->rotate = gimp_drawable_rotate;
item_class->transform = gimp_drawable_transform;
klass->update = gimp_drawable_real_update;
klass->alpha_changed = NULL;
klass->invalidate_boundary = NULL;
klass->get_active_components = NULL;
klass->apply_region = gimp_drawable_real_apply_region;
klass->replace_region = gimp_drawable_real_replace_region;
klass->set_tiles = gimp_drawable_real_set_tiles;
klass->push_undo = gimp_drawable_real_push_undo;
klass->swap_pixels = gimp_drawable_real_swap_pixels;
}
static void
gimp_drawable_init (GimpDrawable *drawable)
{
drawable->tiles = NULL;
drawable->bytes = 0;
drawable->type = -1;
drawable->has_alpha = FALSE;
drawable->preview_cache = NULL;
drawable->preview_valid = FALSE;
}
static void
gimp_drawable_pickable_iface_init (GimpPickableInterface *pickable_iface)
{
pickable_iface->get_image = gimp_item_get_image;
pickable_iface->get_image_type = gimp_drawable_type;
pickable_iface->get_tiles = gimp_drawable_data;
pickable_iface->get_color_at = gimp_drawable_get_color_at;
}
static void
gimp_drawable_finalize (GObject *object)
{
GimpDrawable *drawable = GIMP_DRAWABLE (object);
if (drawable->tiles)
{
tile_manager_unref (drawable->tiles);
drawable->tiles = NULL;
}
if (drawable->preview_cache)
gimp_preview_cache_invalidate (&drawable->preview_cache);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gint64
gimp_drawable_get_memsize (GimpObject *object,
gint64 *gui_size)
{
GimpDrawable *drawable = GIMP_DRAWABLE (object);
gint64 memsize = 0;
if (drawable->tiles)
memsize += tile_manager_get_memsize (drawable->tiles, FALSE);
if (drawable->preview_cache)
*gui_size += gimp_preview_cache_get_memsize (drawable->preview_cache);
return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object,
gui_size);
}
static void
gimp_drawable_invalidate_preview (GimpViewable *viewable)
{
GimpDrawable *drawable = GIMP_DRAWABLE (viewable);
if (GIMP_VIEWABLE_CLASS (parent_class)->invalidate_preview)
GIMP_VIEWABLE_CLASS (parent_class)->invalidate_preview (viewable);
drawable->preview_valid = FALSE;
if (drawable->preview_cache)
gimp_preview_cache_invalidate (&drawable->preview_cache);
}
static GimpItem *
gimp_drawable_duplicate (GimpItem *item,
GType new_type,
gboolean add_alpha)
{
GimpDrawable *drawable;
GimpItem *new_item;
GimpDrawable *new_drawable;
GimpImageType new_image_type;
PixelRegion srcPR;
PixelRegion destPR;
g_return_val_if_fail (g_type_is_a (new_type, GIMP_TYPE_DRAWABLE), NULL);
new_item = GIMP_ITEM_CLASS (parent_class)->duplicate (item, new_type,
add_alpha);
if (! GIMP_IS_DRAWABLE (new_item))
return new_item;
drawable = GIMP_DRAWABLE (item);
new_drawable = GIMP_DRAWABLE (new_item);
if (add_alpha)
new_image_type = gimp_drawable_type_with_alpha (drawable);
else
new_image_type = gimp_drawable_type (drawable);
gimp_drawable_configure (new_drawable,
gimp_item_get_image (GIMP_ITEM (drawable)),
item->offset_x,
item->offset_y,
item->width,
item->height,
new_image_type,
GIMP_OBJECT (new_drawable)->name);
pixel_region_init (&srcPR, drawable->tiles,
0, 0,
item->width,
item->height,
FALSE);
pixel_region_init (&destPR, new_drawable->tiles,
0, 0,
new_item->width,
new_item->height,
TRUE);
if (new_image_type == drawable->type)
copy_region (&srcPR, &destPR);
else
add_alpha_region (&srcPR, &destPR);
return new_item;
}
static void
gimp_drawable_translate (GimpItem *item,
gint offset_x,
gint offset_y,
gboolean push_undo)
{
GimpDrawable *drawable = GIMP_DRAWABLE (item);
GimpImage *gimage = gimp_item_get_image (item);
if (gimp_drawable_has_floating_sel (drawable))
floating_sel_relax (gimp_image_floating_sel (gimage), FALSE);
GIMP_ITEM_CLASS (parent_class)->translate (item, offset_x, offset_y,
push_undo);
if (gimp_drawable_has_floating_sel (drawable))
floating_sel_rigor (gimp_image_floating_sel (gimage), FALSE);
}
static void
gimp_drawable_scale (GimpItem *item,
gint new_width,
gint new_height,
gint new_offset_x,
gint new_offset_y,
GimpInterpolationType interpolation_type,
GimpProgress *progress)
{
GimpDrawable *drawable = GIMP_DRAWABLE (item);
PixelRegion srcPR, destPR;
TileManager *new_tiles;
new_tiles = tile_manager_new (new_width, new_height, drawable->bytes);
pixel_region_init (&srcPR, drawable->tiles,
0, 0, item->width, item->height,
FALSE);
pixel_region_init (&destPR, new_tiles,
0, 0, new_width, new_height,
TRUE);
/* Scale the drawable -
* If the drawable is indexed, then we don't use pixel-value
* resampling because that doesn't necessarily make sense for indexed
* images.
*/
scale_region (&srcPR, &destPR,
gimp_drawable_is_indexed (drawable) ?
GIMP_INTERPOLATION_NONE : interpolation_type,
progress ? gimp_progress_update_and_flush : NULL,
progress);
gimp_drawable_set_tiles_full (drawable, TRUE, NULL,
new_tiles, gimp_drawable_type (drawable),
new_offset_x, new_offset_y);
tile_manager_unref (new_tiles);
}
static void
gimp_drawable_resize (GimpItem *item,
GimpContext *context,
gint new_width,
gint new_height,
gint offset_x,
gint offset_y)
{
GimpDrawable *drawable = GIMP_DRAWABLE (item);
PixelRegion srcPR, destPR;
TileManager *new_tiles;
gint new_offset_x;
gint new_offset_y;
gint copy_x, copy_y;
gint copy_width, copy_height;
new_offset_x = item->offset_x - offset_x;
new_offset_y = item->offset_y - offset_y;
gimp_rectangle_intersect (item->offset_x, item->offset_y,
item->width, item->height,
new_offset_x, new_offset_y,
new_width, new_height,
&copy_x, &copy_y,
&copy_width, &copy_height);
new_tiles = tile_manager_new (new_width, new_height, drawable->bytes);
/* Determine whether the new tiles need to be initially cleared */
if (copy_width != new_width ||
copy_height != new_height)
{
guchar bg[MAX_CHANNELS] = { 0, };
pixel_region_init (&destPR, new_tiles,
0, 0,
new_width, new_height,
TRUE);
if (! gimp_drawable_has_alpha (drawable) && ! GIMP_IS_CHANNEL (drawable))
gimp_image_get_background (gimp_item_get_image (item), drawable,
context, bg);
color_region (&destPR, bg);
}
/* Determine whether anything needs to be copied */
if (copy_width && copy_height)
{
pixel_region_init (&srcPR, drawable->tiles,
copy_x - item->offset_x, copy_y - item->offset_y,
copy_width, copy_height,
FALSE);
pixel_region_init (&destPR, new_tiles,
copy_x - new_offset_x, copy_y - new_offset_y,
copy_width, copy_height,
TRUE);
copy_region (&srcPR, &destPR);
}
gimp_drawable_set_tiles_full (drawable, TRUE, NULL,
new_tiles, gimp_drawable_type (drawable),
new_offset_x, new_offset_y);
tile_manager_unref (new_tiles);
}
static void
gimp_drawable_flip (GimpItem *item,
GimpContext *context,
GimpOrientationType flip_type,
gdouble axis,
gboolean clip_result)
{
GimpDrawable *drawable = GIMP_DRAWABLE (item);
TileManager *tiles;
gint off_x, off_y;
gint old_off_x, old_off_y;
gimp_item_offsets (item, &off_x, &off_y);
tile_manager_get_offsets (drawable->tiles, &old_off_x, &old_off_y);
tile_manager_set_offsets (drawable->tiles, off_x, off_y);
tiles = gimp_drawable_transform_tiles_flip (drawable, context,
drawable->tiles,
flip_type, axis,
clip_result);
tile_manager_set_offsets (drawable->tiles, old_off_x, old_off_y);
if (tiles)
{
gimp_drawable_transform_paste (drawable, tiles, FALSE);
tile_manager_unref (tiles);
}
}
static void
gimp_drawable_rotate (GimpItem *item,
GimpContext *context,
GimpRotationType rotate_type,
gdouble center_x,
gdouble center_y,
gboolean clip_result)
{
GimpDrawable *drawable = GIMP_DRAWABLE (item);
TileManager *tiles;
gint off_x, off_y;
gint old_off_x, old_off_y;
gimp_item_offsets (item, &off_x, &off_y);
tile_manager_get_offsets (drawable->tiles, &old_off_x, &old_off_y);
tile_manager_set_offsets (drawable->tiles, off_x, off_y);
tiles = gimp_drawable_transform_tiles_rotate (drawable, context,
drawable->tiles,
rotate_type, center_x, center_y,
clip_result);
tile_manager_set_offsets (drawable->tiles, old_off_x, old_off_y);
if (tiles)
{
gimp_drawable_transform_paste (drawable, tiles, FALSE);
tile_manager_unref (tiles);
}
}
static void
gimp_drawable_transform (GimpItem *item,
GimpContext *context,
const GimpMatrix3 *matrix,
GimpTransformDirection direction,
GimpInterpolationType interpolation_type,
gboolean supersample,
gint recursion_level,
gboolean clip_result,
GimpProgress *progress)
{
GimpDrawable *drawable = GIMP_DRAWABLE (item);
TileManager *tiles;
gint off_x, off_y;
gint old_off_x, old_off_y;
gimp_item_offsets (item, &off_x, &off_y);
tile_manager_get_offsets (drawable->tiles, &old_off_x, &old_off_y);
tile_manager_set_offsets (drawable->tiles, off_x, off_y);
tiles = gimp_drawable_transform_tiles_affine (drawable, context,
drawable->tiles,
matrix, direction,
interpolation_type,
supersample, recursion_level,
clip_result,
progress);
tile_manager_set_offsets (drawable->tiles, old_off_x, old_off_y);
if (tiles)
{
gimp_drawable_transform_paste (drawable, tiles, FALSE);
tile_manager_unref (tiles);
}
}
static guchar *
gimp_drawable_get_color_at (GimpPickable *pickable,
gint x,
gint y)
{
GimpDrawable *drawable = GIMP_DRAWABLE (pickable);
GimpImage *gimage;
Tile *tile;
guchar *src;
guchar *dest;
gimage = gimp_item_get_image (GIMP_ITEM (drawable));
g_return_val_if_fail (GIMP_IS_IMAGE (gimage), NULL);
/* do not make this a g_return_if_fail() */
if (x < 0 || x >= GIMP_ITEM (drawable)->width ||
y < 0 || y >= GIMP_ITEM (drawable)->height)
return NULL;
dest = g_new (guchar, 5);
tile = tile_manager_get_tile (gimp_drawable_data (drawable), x, y,
TRUE, FALSE);
src = tile_data_pointer (tile, x % TILE_WIDTH, y % TILE_HEIGHT);
gimp_image_get_color (gimage, gimp_drawable_type (drawable), src, dest);
if (gimp_drawable_is_indexed (drawable))
dest[4] = src[0];
else
dest[4] = 0;
tile_release (tile, FALSE);
return dest;
}
static void
gimp_drawable_real_update (GimpDrawable *drawable,
gint x,
gint y,
gint width,
gint height)
{
gimp_viewable_invalidate_preview (GIMP_VIEWABLE (drawable));
}
static void
gimp_drawable_real_set_tiles (GimpDrawable *drawable,
gboolean push_undo,
const gchar *undo_desc,
TileManager *tiles,
GimpImageType type,
gint offset_x,
gint offset_y)
{
GimpItem *item;
gboolean old_has_alpha;
g_return_if_fail (tile_manager_bpp (tiles) == GIMP_IMAGE_TYPE_BYTES (type));
item = GIMP_ITEM (drawable);
old_has_alpha = gimp_drawable_has_alpha (drawable);
gimp_drawable_invalidate_boundary (drawable);
if (push_undo)
gimp_image_undo_push_drawable_mod (gimp_item_get_image (item), undo_desc,
drawable);
/* ref new before unrefing old, they might be the same */
tile_manager_ref (tiles);
if (drawable->tiles)
tile_manager_unref (drawable->tiles);
drawable->tiles = tiles;
drawable->type = type;
drawable->bytes = tile_manager_bpp (tiles);
drawable->has_alpha = GIMP_IMAGE_TYPE_HAS_ALPHA (type);
item->offset_x = offset_x;
item->offset_y = offset_y;
if (item->width != tile_manager_width (tiles) ||
item->height != tile_manager_height (tiles))
{
item->width = tile_manager_width (tiles);
item->height = tile_manager_height (tiles);
gimp_viewable_size_changed (GIMP_VIEWABLE (drawable));
}
if (old_has_alpha != gimp_drawable_has_alpha (drawable))
gimp_drawable_alpha_changed (drawable);
}
static void
gimp_drawable_real_push_undo (GimpDrawable *drawable,
const gchar *undo_desc,
TileManager *tiles,
gboolean sparse,
gint x,
gint y,
gint width,
gint height)
{
gboolean new_tiles = FALSE;
if (! tiles)
{
PixelRegion srcPR, destPR;
tiles = tile_manager_new (width, height, gimp_drawable_bytes (drawable));
pixel_region_init (&srcPR, gimp_drawable_data (drawable),
x, y, width, height, FALSE);
pixel_region_init (&destPR, tiles,
0, 0, width, height, TRUE);
copy_region (&srcPR, &destPR);
new_tiles = TRUE;
}
gimp_image_undo_push_drawable (gimp_item_get_image (GIMP_ITEM (drawable)),
undo_desc, drawable,
tiles, sparse,
x, y, width, height);
if (new_tiles)
tile_manager_unref (tiles);
}
static void
gimp_drawable_real_swap_pixels (GimpDrawable *drawable,
TileManager *tiles,
gboolean sparse,
gint x,
gint y,
gint width,
gint height)
{
if (sparse)
{
gint i, j;
for (i = y; i < (y + height); i += (TILE_HEIGHT - (i % TILE_HEIGHT)))
{
for (j = x; j < (x + width); j += (TILE_WIDTH - (j % TILE_WIDTH)))
{
Tile *src_tile;
Tile *dest_tile;
src_tile = tile_manager_get_tile (tiles, j, i, FALSE, FALSE);
if (tile_is_valid (src_tile))
{
/* swap tiles, not pixels! */
src_tile = tile_manager_get_tile (tiles,
j, i, TRUE, FALSE /*TRUE*/);
dest_tile = tile_manager_get_tile (gimp_drawable_data (drawable), j, i, TRUE, FALSE /* TRUE */);
tile_manager_map_tile (tiles,
j, i, dest_tile);
tile_manager_map_tile (gimp_drawable_data (drawable),
j, i, src_tile);
#if 0
swap_pixels (tile_data_pointer (src_tile, 0, 0),
tile_data_pointer (dest_tile, 0, 0),
tile_size (src_tile));
#endif
tile_release (dest_tile, FALSE /* TRUE */);
tile_release (src_tile, FALSE /* TRUE */);
}
}
}
}
else
{
PixelRegion PR1, PR2;
pixel_region_init (&PR1, tiles,
0, 0, width, height, TRUE);
pixel_region_init (&PR2, gimp_drawable_data (drawable),
x, y, width, height, TRUE);
swap_region (&PR1, &PR2);
}
gimp_drawable_update (drawable, x, y, width, height);
}
/* public functions */
void
gimp_drawable_configure (GimpDrawable *drawable,
GimpImage *gimage,
gint offset_x,
gint offset_y,
gint width,
gint height,
GimpImageType type,
const gchar *name)
{
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (GIMP_IS_IMAGE (gimage));
g_return_if_fail (width > 0 && height > 0);
gimp_item_configure (GIMP_ITEM (drawable), gimage,
offset_x, offset_y, width, height, name);
drawable->type = type;
drawable->bytes = GIMP_IMAGE_TYPE_BYTES (type);
drawable->has_alpha = GIMP_IMAGE_TYPE_HAS_ALPHA (type);
if (drawable->tiles)
tile_manager_unref (drawable->tiles);
drawable->tiles = tile_manager_new (width, height, drawable->bytes);
/* preview variables */
drawable->preview_cache = NULL;
drawable->preview_valid = FALSE;
}
void
gimp_drawable_update (GimpDrawable *drawable,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_signal_emit (drawable, gimp_drawable_signals[UPDATE], 0,
x, y, width, height);
}
void
gimp_drawable_alpha_changed (GimpDrawable *drawable)
{
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_signal_emit (drawable, gimp_drawable_signals[ALPHA_CHANGED], 0);
}
void
gimp_drawable_invalidate_boundary (GimpDrawable *drawable)
{
GimpDrawableClass *drawable_class;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
drawable_class = GIMP_DRAWABLE_GET_CLASS (drawable);
if (drawable_class->invalidate_boundary)
drawable_class->invalidate_boundary (drawable);
}
void
gimp_drawable_get_active_components (const GimpDrawable *drawable,
gboolean *active)
{
GimpDrawableClass *drawable_class;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (active != NULL);
drawable_class = GIMP_DRAWABLE_GET_CLASS (drawable);
if (drawable_class->get_active_components)
drawable_class->get_active_components (drawable, active);
}
void
gimp_drawable_apply_region (GimpDrawable *drawable,
PixelRegion *src2PR,
gboolean push_undo,
const gchar *undo_desc,
gdouble opacity,
GimpLayerModeEffects mode,
TileManager *src1_tiles,
gint x,
gint y)
{
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (src2PR != NULL);
GIMP_DRAWABLE_GET_CLASS (drawable)->apply_region (drawable, src2PR,
push_undo, undo_desc,
opacity, mode,
src1_tiles,
x, y);
}
void
gimp_drawable_replace_region (GimpDrawable *drawable,
PixelRegion *src2PR,
gboolean push_undo,
const gchar *undo_desc,
gdouble opacity,
PixelRegion *maskPR,
gint x,
gint y)
{
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (src2PR != NULL);
g_return_if_fail (maskPR != NULL);
GIMP_DRAWABLE_GET_CLASS (drawable)->replace_region (drawable, src2PR,
push_undo, undo_desc,
opacity, maskPR,
x, y);
}
void
gimp_drawable_set_tiles (GimpDrawable *drawable,
gboolean push_undo,
const gchar *undo_desc,
TileManager *tiles)
{
gint offset_x, offset_y;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (tiles != NULL);
gimp_item_offsets (GIMP_ITEM (drawable), &offset_x, &offset_y);
gimp_drawable_set_tiles_full (drawable, push_undo, undo_desc, tiles,
gimp_drawable_type (drawable),
offset_x, offset_y);
}
void
gimp_drawable_set_tiles_full (GimpDrawable *drawable,
gboolean push_undo,
const gchar *undo_desc,
TileManager *tiles,
GimpImageType type,
gint offset_x,
gint offset_y)
{
GimpItem *item;
GimpImage *gimage;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (tiles != NULL);
g_return_if_fail (tile_manager_bpp (tiles) == GIMP_IMAGE_TYPE_BYTES (type));
item = GIMP_ITEM (drawable);
gimage = gimp_item_get_image (item);
if (item->width != tile_manager_width (tiles) ||
item->height != tile_manager_height (tiles) ||
item->offset_x != offset_x ||
item->offset_y != offset_y)
{
gimp_drawable_update (drawable, 0, 0, item->width, item->height);
}
if (gimp_drawable_has_floating_sel (drawable))
floating_sel_relax (gimp_image_floating_sel (gimage), FALSE);
GIMP_DRAWABLE_GET_CLASS (drawable)->set_tiles (drawable,
push_undo, undo_desc,
tiles, type,
offset_x, offset_y);
if (gimp_drawable_has_floating_sel (drawable))
floating_sel_rigor (gimp_image_floating_sel (gimage), FALSE);
gimp_drawable_update (drawable, 0, 0, item->width, item->height);
}
void
gimp_drawable_swap_pixels (GimpDrawable *drawable,
TileManager *tiles,
gboolean sparse,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (tiles != NULL);
GIMP_DRAWABLE_GET_CLASS (drawable)->swap_pixels (drawable, tiles, sparse,
x, y, width, height);
}
void
gimp_drawable_push_undo (GimpDrawable *drawable,
const gchar *undo_desc,
gint x1,
gint y1,
gint x2,
gint y2,
TileManager *tiles,
gboolean sparse)
{
GimpItem *item;
gint x, y;
gint width, height;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (sparse == FALSE || tiles != NULL);
item = GIMP_ITEM (drawable);
g_return_if_fail (sparse == FALSE ||
tile_manager_width (tiles) == gimp_item_width (item));
g_return_if_fail (sparse == FALSE ||
tile_manager_height (tiles) == gimp_item_height (item));
#if 0
g_printerr ("gimp_drawable_push_undo (%s, %d, %d, %d, %d)\n",
sparse ? "TRUE" : "FALSE", x1, y1, x2 - x1, y2 - y1);
#endif
if (! gimp_rectangle_intersect (x1, y1,
x2 - x1, y2 - y1,
0, 0,
gimp_item_width (item),
gimp_item_height (item),
&x, &y, &width, &height))
{
g_warning ("%s: tried to push empty region", G_STRFUNC);
return;
}
GIMP_DRAWABLE_GET_CLASS (drawable)->push_undo (drawable, undo_desc,
tiles, sparse,
x, y, width, height);
}
TileManager *
gimp_drawable_shadow (GimpDrawable *drawable)
{
GimpItem *item;
GimpImage *gimage;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
item = GIMP_ITEM (drawable);
gimage = gimp_item_get_image (item);
g_return_val_if_fail (GIMP_IS_IMAGE (gimage), NULL);
return gimp_image_shadow (gimage, item->width, item->height,
drawable->bytes);
}
void
gimp_drawable_merge_shadow (GimpDrawable *drawable,
gboolean push_undo,
const gchar *undo_desc)
{
GimpImage *gimage;
gint x, y, width, height;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
gimage = gimp_item_get_image (GIMP_ITEM (drawable));
g_return_if_fail (GIMP_IS_IMAGE (gimage));
g_return_if_fail (gimage->shadow != NULL);
/* A useful optimization here is to limit the update to the
* extents of the selection mask, as it cannot extend beyond
* them.
*/
if (gimp_drawable_mask_intersect (drawable, &x, &y, &width, &height))
{
PixelRegion shadowPR;
pixel_region_init (&shadowPR, gimage->shadow,
x, y, width, height, FALSE);
gimp_drawable_apply_region (drawable, &shadowPR,
push_undo, undo_desc,
GIMP_OPACITY_OPAQUE, GIMP_REPLACE_MODE,
NULL, x, y);
}
}
void
gimp_drawable_fill (GimpDrawable *drawable,
const GimpRGB *color,
const GimpPattern *pattern)
{
GimpItem *item;
GimpImage *gimage;
GimpImageType drawable_type;
PixelRegion destPR;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (color != NULL || pattern != NULL);
g_return_if_fail (pattern == NULL || GIMP_IS_PATTERN (pattern));
item = GIMP_ITEM (drawable);
gimage = gimp_item_get_image (item);
g_return_if_fail (gimage != NULL);
drawable_type = gimp_drawable_type (drawable);
pixel_region_init (&destPR, gimp_drawable_data (drawable),
0, 0, gimp_item_width (item), gimp_item_height (item),
TRUE);
if (color)
{
guchar tmp[MAX_CHANNELS];
guchar c[MAX_CHANNELS];
gimp_rgba_get_uchar (color,
&tmp[RED_PIX],
&tmp[GREEN_PIX],
&tmp[BLUE_PIX],
&tmp[ALPHA_PIX]);
gimp_image_transform_color (gimage, drawable, c, GIMP_RGB, tmp);
if (GIMP_IMAGE_TYPE_HAS_ALPHA (drawable_type))
c[GIMP_IMAGE_TYPE_BYTES (drawable_type) - 1] = tmp[ALPHA_PIX];
else
c[GIMP_IMAGE_TYPE_BYTES (drawable_type)] = OPAQUE_OPACITY;
color_region (&destPR, c);
}
else
{
TempBuf *pat_buf;
gboolean new_buf;
pat_buf = gimp_image_transform_temp_buf (gimage, drawable,
pattern->mask, &new_buf);
pattern_region (&destPR, NULL, pat_buf, 0, 0);
if (new_buf)
temp_buf_free (pat_buf);
}
gimp_drawable_update (drawable,
0, 0,
gimp_item_width (item),
gimp_item_height (item));
}
void
gimp_drawable_fill_by_type (GimpDrawable *drawable,
GimpContext *context,
GimpFillType fill_type)
{
GimpRGB color;
GimpPattern *pattern = NULL;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
switch (fill_type)
{
case GIMP_FOREGROUND_FILL:
gimp_context_get_foreground (context, &color);
break;
case GIMP_BACKGROUND_FILL:
gimp_context_get_background (context, &color);
break;
case GIMP_WHITE_FILL:
gimp_rgba_set (&color, 1.0, 1.0, 1.0, GIMP_OPACITY_OPAQUE);
break;
case GIMP_TRANSPARENT_FILL:
gimp_rgba_set (&color, 0.0, 0.0, 0.0, GIMP_OPACITY_TRANSPARENT);
break;
case GIMP_PATTERN_FILL:
pattern = gimp_context_get_pattern (context);
break;
case GIMP_NO_FILL:
return;
default:
g_warning ("%s: unknown fill type %d", G_STRFUNC, fill_type);
return;
}
gimp_drawable_fill (drawable, pattern ? NULL : &color, pattern);
}
gboolean
gimp_drawable_mask_bounds (GimpDrawable *drawable,
gint *x1,
gint *y1,
gint *x2,
gint *y2)
{
GimpItem *item;
GimpImage *gimage;
GimpChannel *selection;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
g_return_val_if_fail (x1 != NULL, FALSE);
g_return_val_if_fail (y1 != NULL, FALSE);
g_return_val_if_fail (x2 != NULL, FALSE);
g_return_val_if_fail (y2 != NULL, FALSE);
item = GIMP_ITEM (drawable);
*x1 = 0;
*y1 = 0;
*x2 = gimp_item_width (item);
*y2 = gimp_item_height (item);
g_return_val_if_fail (gimp_item_is_attached (item), FALSE);
gimage = gimp_item_get_image (item);
selection = gimp_image_get_mask (gimage);
if (GIMP_DRAWABLE (selection) != drawable &&
gimp_channel_bounds (selection, x1, y1, x2, y2))
{
gint off_x, off_y;
gimp_item_offsets (item, &off_x, &off_y);
*x1 = CLAMP (*x1 - off_x, 0, gimp_item_width (item));
*y1 = CLAMP (*y1 - off_y, 0, gimp_item_height (item));
*x2 = CLAMP (*x2 - off_x, 0, gimp_item_width (item));
*y2 = CLAMP (*y2 - off_y, 0, gimp_item_height (item));
return TRUE;
}
*x1 = 0;
*y1 = 0;
*x2 = gimp_item_width (item);
*y2 = gimp_item_height (item);
return FALSE;
}
gboolean
gimp_drawable_mask_intersect (GimpDrawable *drawable,
gint *x,
gint *y,
gint *width,
gint *height)
{
GimpItem *item;
GimpImage *gimage;
GimpChannel *selection;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
g_return_val_if_fail (x != NULL, FALSE);
g_return_val_if_fail (y != NULL, FALSE);
g_return_val_if_fail (width != NULL, FALSE);
g_return_val_if_fail (height != NULL, FALSE);
item = GIMP_ITEM (drawable);
*x = 0;
*y = 0;
*width = gimp_item_width (item);
*height = gimp_item_height (item);
g_return_val_if_fail (gimp_item_is_attached (item), FALSE);
gimage = gimp_item_get_image (item);
selection = gimp_image_get_mask (gimage);
if (GIMP_DRAWABLE (selection) != drawable &&
gimp_channel_bounds (selection, x, y, width, height))
{
gint off_x, off_y;
gimp_item_offsets (item, &off_x, &off_y);
return gimp_rectangle_intersect (*x - off_x, *y - off_y,
*width - *x, *height - *y,
0, 0,
gimp_item_width (item),
gimp_item_height (item),
x, y,
width, height);
}
*x = 0;
*y = 0;
*width = gimp_item_width (item);
*height = gimp_item_height (item);
return TRUE;
}
gboolean
gimp_drawable_has_alpha (const GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
return drawable->has_alpha;
}
GimpImageType
gimp_drawable_type (const GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), -1);
return drawable->type;
}
GimpImageType
gimp_drawable_type_with_alpha (const GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), -1);
return GIMP_IMAGE_TYPE_WITH_ALPHA (gimp_drawable_type (drawable));
}
GimpImageType
gimp_drawable_type_without_alpha (const GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), -1);
return GIMP_IMAGE_TYPE_WITHOUT_ALPHA (gimp_drawable_type (drawable));
}
gboolean
gimp_drawable_is_rgb (const GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
return GIMP_IMAGE_TYPE_IS_RGB (gimp_drawable_type (drawable));
}
gboolean
gimp_drawable_is_gray (const GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
return GIMP_IMAGE_TYPE_IS_GRAY (gimp_drawable_type (drawable));
}
gboolean
gimp_drawable_is_indexed (const GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
return GIMP_IMAGE_TYPE_IS_INDEXED (gimp_drawable_type (drawable));
}
gint
gimp_drawable_bytes (const GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), -1);
return drawable->bytes;
}
gint
gimp_drawable_bytes_with_alpha (const GimpDrawable *drawable)
{
GimpImageType type;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), -1);
type = GIMP_IMAGE_TYPE_WITH_ALPHA (gimp_drawable_type (drawable));
return GIMP_IMAGE_TYPE_BYTES (type);
}
gint
gimp_drawable_bytes_without_alpha (const GimpDrawable *drawable)
{
GimpImageType type;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), -1);
type = GIMP_IMAGE_TYPE_WITHOUT_ALPHA (gimp_drawable_type (drawable));
return GIMP_IMAGE_TYPE_BYTES (type);
}
gboolean
gimp_drawable_has_floating_sel (const GimpDrawable *drawable)
{
GimpImage *gimage;
GimpLayer *floating_sel;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
gimage = gimp_item_get_image (GIMP_ITEM (drawable));
floating_sel = gimp_image_floating_sel (gimage);
return (floating_sel && floating_sel->fs.drawable == drawable);
}
TileManager *
gimp_drawable_data (const GimpDrawable *drawable)
{
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
return drawable->tiles;
}
guchar *
gimp_drawable_cmap (const GimpDrawable *drawable)
{
GimpImage *gimage;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
gimage = gimp_item_get_image (GIMP_ITEM (drawable));
if (gimage)
return gimage->cmap;
return NULL;
}
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