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e23e99e2ab5229f9629713f5d6f12e40b3eeab8f
gimp/app/core/gimpdrawable-transform.c
Barak Itkin 5930b13084 app: add context to all undo descriptions 
Description of undo actions should be marked as action descriptions,
and not as commands. This is required for translation for some
language (like Hebrew) that require a different grammatical tense for
describing actions
2010-06-09 18:50:23 +02:00

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995-2003 Spencer Kimball, Peter Mattis, and others
*
* 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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <gegl.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpmath/gimpmath.h"
#include "core-types.h"
#include "base/pixel-region.h"
#include "base/tile-manager.h"
#include "paint-funcs/paint-funcs.h"
#include "gimp.h"
#include "gimp-transform-region.h"
#include "gimp-transform-resize.h"
#include "gimpchannel.h"
#include "gimpcontext.h"
#include "gimpdrawable-transform.h"
#include "gimpimage.h"
#include "gimpimage-undo.h"
#include "gimpimage-undo-push.h"
#include "gimplayer.h"
#include "gimplayer-floating-sel.h"
#include "gimppickable.h"
#include "gimpprogress.h"
#include "gimpselection.h"
#include "gimp-intl.h"
#if defined (HAVE_FINITE)
#define FINITE(x) finite(x)
#elif defined (HAVE_ISFINITE)
#define FINITE(x) isfinite(x)
#elif defined (G_OS_WIN32)
#define FINITE(x) _finite(x)
#else
#error "no FINITE() implementation available?!"
#endif
#define MIN4(a,b,c,d) MIN(MIN(a,b),MIN(c,d))
#define MAX4(a,b,c,d) MAX(MAX(a,b),MAX(c,d))
/* public functions */
TileManager *
gimp_drawable_transform_tiles_affine (GimpDrawable *drawable,
GimpContext *context,
TileManager *orig_tiles,
const GimpMatrix3 *matrix,
GimpTransformDirection direction,
GimpInterpolationType interpolation_type,
gint recursion_level,
GimpTransformResize clip_result,
GimpProgress *progress)
{
GimpImage *image;
PixelRegion destPR;
TileManager *new_tiles;
GimpMatrix3 m;
GimpMatrix3 inv;
gint u1, v1, u2, v2; /* source bounding box */
gint x1, y1, x2, y2; /* target bounding box */
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (orig_tiles != NULL, NULL);
g_return_val_if_fail (matrix != NULL, NULL);
g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), NULL);
image = gimp_item_get_image (GIMP_ITEM (drawable));
m = *matrix;
inv = *matrix;
if (direction == GIMP_TRANSFORM_BACKWARD)
{
/* keep the original matrix here, so we dont need to recalculate
* the inverse later
*/
gimp_matrix3_invert (&inv);
}
else
{
/* Find the inverse of the transformation matrix */
gimp_matrix3_invert (&m);
}
tile_manager_get_offsets (orig_tiles, &u1, &v1);
u2 = u1 + tile_manager_width (orig_tiles);
v2 = v1 + tile_manager_height (orig_tiles);
/* Always clip unfloated tiles since they must keep their size */
if (G_TYPE_FROM_INSTANCE (drawable) == GIMP_TYPE_CHANNEL &&
tile_manager_bpp (orig_tiles) == 1)
clip_result = GIMP_TRANSFORM_RESIZE_CLIP;
/* Find the bounding coordinates of target */
gimp_transform_resize_boundary (&inv, clip_result,
u1, v1, u2, v2,
&x1, &y1, &x2, &y2);
/* Get the new temporary buffer for the transformed result */
new_tiles = tile_manager_new (x2 - x1, y2 - y1,
tile_manager_bpp (orig_tiles));
pixel_region_init (&destPR, new_tiles,
0, 0, x2 - x1, y2 - y1, TRUE);
tile_manager_set_offsets (new_tiles, x1, y1);
gimp_transform_region (GIMP_PICKABLE (drawable),
context,
orig_tiles,
&destPR,
x1,
y1,
x2,
y2,
&inv,
interpolation_type,
recursion_level,
progress);
return new_tiles;
}
TileManager *
gimp_drawable_transform_tiles_flip (GimpDrawable *drawable,
GimpContext *context,
TileManager *orig_tiles,
GimpOrientationType flip_type,
gdouble axis,
gboolean clip_result)
{
GimpImage *image;
TileManager *new_tiles;
PixelRegion srcPR, destPR;
gint orig_x, orig_y;
gint orig_width, orig_height;
gint orig_bpp;
gint new_x, new_y;
gint new_width, new_height;
gint i;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (orig_tiles != NULL, NULL);
image = gimp_item_get_image (GIMP_ITEM (drawable));
orig_width = tile_manager_width (orig_tiles);
orig_height = tile_manager_height (orig_tiles);
orig_bpp = tile_manager_bpp (orig_tiles);
tile_manager_get_offsets (orig_tiles, &orig_x, &orig_y);
new_x = orig_x;
new_y = orig_y;
new_width = orig_width;
new_height = orig_height;
switch (flip_type)
{
case GIMP_ORIENTATION_HORIZONTAL:
new_x = RINT (-((gdouble) orig_x +
(gdouble) orig_width - axis) + axis);
break;
case GIMP_ORIENTATION_VERTICAL:
new_y = RINT (-((gdouble) orig_y +
(gdouble) orig_height - axis) + axis);
break;
case GIMP_ORIENTATION_UNKNOWN:
g_return_val_if_reached (NULL);
break;
}
new_tiles = tile_manager_new (new_width, new_height, orig_bpp);
if (clip_result && (new_x != orig_x || new_y != orig_y))
{
guchar bg_color[MAX_CHANNELS];
gint clip_x, clip_y;
gint clip_width, clip_height;
tile_manager_set_offsets (new_tiles, orig_x, orig_y);
gimp_image_get_background (image, context, gimp_drawable_type (drawable),
bg_color);
/* "Outside" a channel is transparency, not the bg color */
if (GIMP_IS_CHANNEL (drawable))
bg_color[0] = TRANSPARENT_OPACITY;
pixel_region_init (&destPR, new_tiles,
0, 0, new_width, new_height, TRUE);
color_region (&destPR, bg_color);
if (gimp_rectangle_intersect (orig_x, orig_y, orig_width, orig_height,
new_x, new_y, new_width, new_height,
&clip_x, &clip_y,
&clip_width, &clip_height))
{
orig_x = new_x = clip_x - orig_x;
orig_y = new_y = clip_y - orig_y;
}
orig_width = new_width = clip_width;
orig_height = new_height = clip_height;
}
else
{
tile_manager_set_offsets (new_tiles, new_x, new_y);
orig_x = 0;
orig_y = 0;
new_x = 0;
new_y = 0;
}
if (new_width == 0 && new_height == 0)
return new_tiles;
switch (flip_type)
{
case GIMP_ORIENTATION_HORIZONTAL:
for (i = 0; i < orig_width; i++)
{
pixel_region_init (&srcPR, orig_tiles,
i + orig_x, orig_y,
1, orig_height, FALSE);
pixel_region_init (&destPR, new_tiles,
new_x + new_width - i - 1, new_y,
1, new_height, TRUE);
copy_region (&srcPR, &destPR);
}
break;
case GIMP_ORIENTATION_VERTICAL:
for (i = 0; i < orig_height; i++)
{
pixel_region_init (&srcPR, orig_tiles,
orig_x, i + orig_y,
orig_width, 1, FALSE);
pixel_region_init (&destPR, new_tiles,
new_x, new_y + new_height - i - 1,
new_width, 1, TRUE);
copy_region (&srcPR, &destPR);
}
break;
case GIMP_ORIENTATION_UNKNOWN:
break;
}
return new_tiles;
}
static void
gimp_drawable_transform_rotate_point (gint x,
gint y,
GimpRotationType rotate_type,
gdouble center_x,
gdouble center_y,
gint *new_x,
gint *new_y)
{
g_return_if_fail (new_x != NULL);
g_return_if_fail (new_y != NULL);
switch (rotate_type)
{
case GIMP_ROTATE_90:
*new_x = RINT (center_x - (gdouble) y + center_y);
*new_y = RINT (center_y + (gdouble) x - center_x);
break;
case GIMP_ROTATE_180:
*new_x = RINT (center_x - ((gdouble) x - center_x));
*new_y = RINT (center_y - ((gdouble) y - center_y));
break;
case GIMP_ROTATE_270:
*new_x = RINT (center_x + (gdouble) y - center_y);
*new_y = RINT (center_y - (gdouble) x + center_x);
break;
default:
g_assert_not_reached ();
}
}
TileManager *
gimp_drawable_transform_tiles_rotate (GimpDrawable *drawable,
GimpContext *context,
TileManager *orig_tiles,
GimpRotationType rotate_type,
gdouble center_x,
gdouble center_y,
gboolean clip_result)
{
GimpImage *image;
TileManager *new_tiles;
PixelRegion srcPR, destPR;
guchar *buf = NULL;
gint orig_x, orig_y;
gint orig_width, orig_height;
gint orig_bpp;
gint new_x, new_y;
gint new_width, new_height;
gint i, j, k;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (orig_tiles != NULL, NULL);
image = gimp_item_get_image (GIMP_ITEM (drawable));
orig_width = tile_manager_width (orig_tiles);
orig_height = tile_manager_height (orig_tiles);
orig_bpp = tile_manager_bpp (orig_tiles);
tile_manager_get_offsets (orig_tiles, &orig_x, &orig_y);
switch (rotate_type)
{
case GIMP_ROTATE_90:
gimp_drawable_transform_rotate_point (orig_x,
orig_y + orig_height,
rotate_type, center_x, center_y,
&new_x, &new_y);
new_width = orig_height;
new_height = orig_width;
break;
case GIMP_ROTATE_180:
gimp_drawable_transform_rotate_point (orig_x + orig_width,
orig_y + orig_height,
rotate_type, center_x, center_y,
&new_x, &new_y);
new_width = orig_width;
new_height = orig_height;
break;
case GIMP_ROTATE_270:
gimp_drawable_transform_rotate_point (orig_x + orig_width,
orig_y,
rotate_type, center_x, center_y,
&new_x, &new_y);
new_width = orig_height;
new_height = orig_width;
break;
default:
g_return_val_if_reached (NULL);
break;
}
if (clip_result && (new_x != orig_x || new_y != orig_y ||
new_width != orig_width || new_height != orig_height))
{
guchar bg_color[MAX_CHANNELS];
gint clip_x, clip_y;
gint clip_width, clip_height;
new_tiles = tile_manager_new (orig_width, orig_height, orig_bpp);
tile_manager_set_offsets (new_tiles, orig_x, orig_y);
gimp_image_get_background (image, context, gimp_drawable_type (drawable),
bg_color);
/* "Outside" a channel is transparency, not the bg color */
if (GIMP_IS_CHANNEL (drawable))
bg_color[0] = TRANSPARENT_OPACITY;
pixel_region_init (&destPR, new_tiles,
0, 0, orig_width, orig_height, TRUE);
color_region (&destPR, bg_color);
if (gimp_rectangle_intersect (orig_x, orig_y, orig_width, orig_height,
new_x, new_y, new_width, new_height,
&clip_x, &clip_y,
&clip_width, &clip_height))
{
gint saved_orig_x = orig_x;
gint saved_orig_y = orig_y;
new_x = clip_x - orig_x;
new_y = clip_y - orig_y;
switch (rotate_type)
{
case GIMP_ROTATE_90:
gimp_drawable_transform_rotate_point (clip_x + clip_width,
clip_y,
GIMP_ROTATE_270,
center_x,
center_y,
&orig_x,
&orig_y);
orig_x -= saved_orig_x;
orig_y -= saved_orig_y;
orig_width = clip_height;
orig_height = clip_width;
break;
case GIMP_ROTATE_180:
orig_x = clip_x - orig_x;
orig_y = clip_y - orig_y;
orig_width = clip_width;
orig_height = clip_height;
break;
case GIMP_ROTATE_270:
gimp_drawable_transform_rotate_point (clip_x,
clip_y + clip_height,
GIMP_ROTATE_90,
center_x,
center_y,
&orig_x,
&orig_y);
orig_x -= saved_orig_x;
orig_y -= saved_orig_y;
orig_width = clip_height;
orig_height = clip_width;
break;
}
}
new_width = clip_width;
new_height = clip_height;
}
else
{
new_tiles = tile_manager_new (new_width, new_height, orig_bpp);
tile_manager_set_offsets (new_tiles, new_x, new_y);
orig_x = 0;
orig_y = 0;
new_x = 0;
new_y = 0;
}
if (new_width == 0 && new_height == 0)
return new_tiles;
pixel_region_init (&srcPR, orig_tiles,
orig_x, orig_y, orig_width, orig_height, FALSE);
pixel_region_init (&destPR, new_tiles,
new_x, new_y, new_width, new_height, TRUE);
switch (rotate_type)
{
case GIMP_ROTATE_90:
g_assert (new_height == orig_width);
buf = g_new (guchar, new_height * orig_bpp);
for (i = 0; i < orig_height; i++)
{
pixel_region_get_row (&srcPR, orig_x, orig_y + orig_height - 1 - i,
orig_width, buf, 1);
pixel_region_set_col (&destPR, new_x + i, new_y, new_height, buf);
}
break;
case GIMP_ROTATE_180:
g_assert (new_width == orig_width);
buf = g_new (guchar, new_width * orig_bpp);
for (i = 0; i < orig_height; i++)
{
pixel_region_get_row (&srcPR, orig_x, orig_y + orig_height - 1 - i,
orig_width, buf, 1);
for (j = 0; j < orig_width / 2; j++)
{
guchar *left = buf + j * orig_bpp;
guchar *right = buf + (orig_width - 1 - j) * orig_bpp;
for (k = 0; k < orig_bpp; k++)
{
guchar tmp = left[k];
left[k] = right[k];
right[k] = tmp;
}
}
pixel_region_set_row (&destPR, new_x, new_y + i, new_width, buf);
}
break;
case GIMP_ROTATE_270:
g_assert (new_width == orig_height);
buf = g_new (guchar, new_width * orig_bpp);
for (i = 0; i < orig_width; i++)
{
pixel_region_get_col (&srcPR, orig_x + orig_width - 1 - i, orig_y,
orig_height, buf, 1);
pixel_region_set_row (&destPR, new_x, new_y + i, new_width, buf);
}
break;
}
g_free (buf);
return new_tiles;
}
gboolean
gimp_drawable_transform_affine (GimpDrawable *drawable,
GimpContext *context,
const GimpMatrix3 *matrix,
GimpTransformDirection direction,
GimpInterpolationType interpolation_type,
gint recursion_level,
GimpTransformResize clip_result,
GimpProgress *progress)
{
GimpImage *image;
TileManager *orig_tiles;
gboolean new_layer;
gboolean success = FALSE;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), FALSE);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), FALSE);
g_return_val_if_fail (matrix != NULL, FALSE);
g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), FALSE);
image = gimp_item_get_image (GIMP_ITEM (drawable));
/* Start a transform undo group */
gimp_image_undo_group_start (image,
GIMP_UNDO_GROUP_TRANSFORM, C_("undo-type", "Transform"));
/* Cut/Copy from the specified drawable */
orig_tiles = gimp_drawable_transform_cut (drawable, context, &new_layer);
if (orig_tiles)
{
TileManager *new_tiles;
/* always clip unfloated tiles so they keep their size */
if (GIMP_IS_CHANNEL (drawable) && tile_manager_bpp (orig_tiles) == 1)
clip_result = GIMP_TRANSFORM_RESIZE_CLIP;
/* also transform the mask if we are transforming an entire layer */
if (GIMP_IS_LAYER (drawable) &&
gimp_layer_get_mask (GIMP_LAYER (drawable)) &&
gimp_channel_is_empty (gimp_image_get_mask (image)))
{
GimpLayerMask *mask = gimp_layer_get_mask (GIMP_LAYER (drawable));
gimp_item_transform (GIMP_ITEM (mask), context,
matrix,
direction,
interpolation_type,
recursion_level,
clip_result,
progress);
}
/* transform the buffer */
new_tiles = gimp_drawable_transform_tiles_affine (drawable, context,
orig_tiles,
matrix,
direction,
interpolation_type,
recursion_level,
clip_result,
progress);
/* Free the cut/copied buffer */
tile_manager_unref (orig_tiles);
if (new_tiles)
{
success = gimp_drawable_transform_paste (drawable, new_tiles,
new_layer);
tile_manager_unref (new_tiles);
}
}
/* push the undo group end */
gimp_image_undo_group_end (image);
return success;
}
gboolean
gimp_drawable_transform_flip (GimpDrawable *drawable,
GimpContext *context,
GimpOrientationType flip_type,
gboolean auto_center,
gdouble axis,
gboolean clip_result)
{
GimpImage *image;
TileManager *orig_tiles;
gboolean new_layer;
gboolean success = FALSE;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), FALSE);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), FALSE);
image = gimp_item_get_image (GIMP_ITEM (drawable));
/* Start a transform undo group */
gimp_image_undo_group_start (image,
GIMP_UNDO_GROUP_TRANSFORM,
C_("undo-type", "Flip"));
/* Cut/Copy from the specified drawable */
orig_tiles = gimp_drawable_transform_cut (drawable, context, &new_layer);
if (orig_tiles)
{
TileManager *new_tiles = NULL;
if (auto_center)
{
gint off_x, off_y;
gint width, height;
tile_manager_get_offsets (orig_tiles, &off_x, &off_y);
width = tile_manager_width (orig_tiles);
height = tile_manager_height (orig_tiles);
switch (flip_type)
{
case GIMP_ORIENTATION_HORIZONTAL:
axis = ((gdouble) off_x + (gdouble) width / 2.0);
break;
case GIMP_ORIENTATION_VERTICAL:
axis = ((gdouble) off_y + (gdouble) height / 2.0);
break;
default:
break;
}
}
/* always clip unfloated tiles so they keep their size */
if (GIMP_IS_CHANNEL (drawable) && tile_manager_bpp (orig_tiles) == 1)
clip_result = TRUE;
/* also transform the mask if we are transforming an entire layer */
if (GIMP_IS_LAYER (drawable) &&
gimp_layer_get_mask (GIMP_LAYER (drawable)) &&
gimp_channel_is_empty (gimp_image_get_mask (image)))
{
GimpLayerMask *mask = gimp_layer_get_mask (GIMP_LAYER (drawable));
gimp_item_flip (GIMP_ITEM (mask), context,
flip_type,
axis,
clip_result);
}
/* transform the buffer */
if (orig_tiles)
{
new_tiles = gimp_drawable_transform_tiles_flip (drawable, context,
orig_tiles,
flip_type, axis,
clip_result);
/* Free the cut/copied buffer */
tile_manager_unref (orig_tiles);
}
if (new_tiles)
{
success = gimp_drawable_transform_paste (drawable, new_tiles,
new_layer);
tile_manager_unref (new_tiles);
}
}
/* push the undo group end */
gimp_image_undo_group_end (image);
return success;
}
gboolean
gimp_drawable_transform_rotate (GimpDrawable *drawable,
GimpContext *context,
GimpRotationType rotate_type,
gboolean auto_center,
gdouble center_x,
gdouble center_y,
gboolean clip_result)
{
GimpImage *image;
TileManager *orig_tiles;
gboolean new_layer;
gboolean success = FALSE;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), FALSE);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), FALSE);
image = gimp_item_get_image (GIMP_ITEM (drawable));
/* Start a transform undo group */
gimp_image_undo_group_start (image,
GIMP_UNDO_GROUP_TRANSFORM,
C_("undo-type", "Rotate"));
/* Cut/Copy from the specified drawable */
orig_tiles = gimp_drawable_transform_cut (drawable, context, &new_layer);
if (orig_tiles)
{
TileManager *new_tiles;
if (auto_center)
{
gint off_x, off_y;
gint width, height;
tile_manager_get_offsets (orig_tiles, &off_x, &off_y);
width = tile_manager_width (orig_tiles);
height = tile_manager_height (orig_tiles);
center_x = (gdouble) off_x + (gdouble) width / 2.0;
center_y = (gdouble) off_y + (gdouble) height / 2.0;
}
/* always clip unfloated tiles so they keep their size */
if (GIMP_IS_CHANNEL (drawable) && tile_manager_bpp (orig_tiles) == 1)
clip_result = TRUE;
/* also transform the mask if we are transforming an entire layer */
if (GIMP_IS_LAYER (drawable) &&
gimp_layer_get_mask (GIMP_LAYER (drawable)) &&
gimp_channel_is_empty (gimp_image_get_mask (image)))
{
GimpLayerMask *mask = gimp_layer_get_mask (GIMP_LAYER (drawable));
gimp_item_rotate (GIMP_ITEM (mask), context,
rotate_type,
center_x,
center_y,
clip_result);
}
/* transform the buffer */
new_tiles = gimp_drawable_transform_tiles_rotate (drawable, context,
orig_tiles,
rotate_type,
center_x, center_y,
clip_result);
/* Free the cut/copied buffer */
tile_manager_unref (orig_tiles);
if (new_tiles)
{
success = gimp_drawable_transform_paste (drawable, new_tiles,
new_layer);
tile_manager_unref (new_tiles);
}
}
/* push the undo group end */
gimp_image_undo_group_end (image);
return success;
}
TileManager *
gimp_drawable_transform_cut (GimpDrawable *drawable,
GimpContext *context,
gboolean *new_layer)
{
GimpImage *image;
TileManager *tiles;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (new_layer != NULL, NULL);
image = gimp_item_get_image (GIMP_ITEM (drawable));
/* extract the selected mask if there is a selection */
if (! gimp_channel_is_empty (gimp_image_get_mask (image)))
{
gint x, y, w, h;
/* set the keep_indexed flag to FALSE here, since we use
* gimp_layer_new_from_tiles() later which assumes that the tiles
* are either RGB or GRAY. Eeek!!! (Sven)
*/
if (gimp_drawable_mask_intersect (drawable, &x, &y, &w, &h))
{
tiles = gimp_selection_extract (GIMP_SELECTION (gimp_image_get_mask (image)),
GIMP_PICKABLE (drawable),
context,
TRUE, FALSE, TRUE,
NULL);
/* clear the selection */
gimp_channel_clear (gimp_image_get_mask (image), NULL, TRUE);
*new_layer = TRUE;
}
else
{
tiles = NULL;
*new_layer = FALSE;
}
}
else /* otherwise, just copy the layer */
{
tiles = gimp_selection_extract (GIMP_SELECTION (gimp_image_get_mask (image)),
GIMP_PICKABLE (drawable),
context,
FALSE, TRUE, GIMP_IS_LAYER (drawable),
NULL);
*new_layer = FALSE;
}
return tiles;
}
gboolean
gimp_drawable_transform_paste (GimpDrawable *drawable,
TileManager *tiles,
gboolean new_layer)
{
GimpImage *image;
GimpLayer *layer = NULL;
const gchar *undo_desc = NULL;
gint offset_x;
gint offset_y;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), FALSE);
g_return_val_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)), FALSE);
g_return_val_if_fail (tiles != NULL, FALSE);
image = gimp_item_get_image (GIMP_ITEM (drawable));
if (GIMP_IS_LAYER (drawable))
undo_desc = C_("undo-type", "Transform Layer");
else if (GIMP_IS_CHANNEL (drawable))
undo_desc = C_("undo-type", "Transform Channel");
else
return FALSE;
tile_manager_get_offsets (tiles, &offset_x, &offset_y);
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_EDIT_PASTE, undo_desc);
if (new_layer)
{
layer =
gimp_layer_new_from_tiles (tiles, image,
gimp_drawable_type_with_alpha (drawable),
_("Transformation"),
GIMP_OPACITY_OPAQUE, GIMP_NORMAL_MODE);
gimp_item_set_offset (GIMP_ITEM (layer), offset_x, offset_y);
floating_sel_attach (layer, drawable);
}
else
{
GimpImageType drawable_type;
if (GIMP_IS_LAYER (drawable) && (tile_manager_bpp (tiles) == 2 ||
tile_manager_bpp (tiles) == 4))
{
drawable_type = gimp_drawable_type_with_alpha (drawable);
}
else
{
drawable_type = gimp_drawable_type (drawable);
}
gimp_drawable_set_tiles_full (drawable, TRUE, NULL,
tiles, drawable_type,
offset_x, offset_y);
}
gimp_image_undo_group_end (image);
return TRUE;
}
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