gimp/app/core/gimpimage-flip.c

179 lines
5.3 KiB
C

/* 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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include "core-types.h"
#include "gimp.h"
#include "gimpcontainer.h"
#include "gimpcontext.h"
#include "gimpguide.h"
#include "gimpimage.h"
#include "gimpimage-flip.h"
#include "gimpimage-guides.h"
#include "gimpimage-sample-points.h"
#include "gimpimage-undo.h"
#include "gimpimage-undo-push.h"
#include "gimpitem.h"
#include "gimpprogress.h"
#include "gimpsamplepoint.h"
void
gimp_image_flip (GimpImage *image,
GimpContext *context,
GimpOrientationType flip_type,
GimpProgress *progress)
{
GList *list;
gdouble axis;
gdouble progress_max;
gdouble progress_current = 1.0;
g_return_if_fail (GIMP_IS_IMAGE (image));
g_return_if_fail (GIMP_IS_CONTEXT (context));
g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
gimp_set_busy (image->gimp);
switch (flip_type)
{
case GIMP_ORIENTATION_HORIZONTAL:
axis = (gdouble) gimp_image_get_width (image) / 2.0;
break;
case GIMP_ORIENTATION_VERTICAL:
axis = (gdouble) gimp_image_get_height (image) / 2.0;
break;
default:
g_warning ("%s: unknown flip_type", G_STRFUNC);
return;
}
progress_max = (gimp_container_get_n_children (gimp_image_get_channels (image)) +
gimp_container_get_n_children (gimp_image_get_layers (image)) +
gimp_container_get_n_children (gimp_image_get_vectors (image)) +
1 /* selection */);
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_IMAGE_FLIP, NULL);
/* Flip all channels */
for (list = gimp_image_get_channel_iter (image);
list;
list = g_list_next (list))
{
GimpItem *item = list->data;
gimp_item_flip (item, context, flip_type, axis, TRUE);
if (progress)
gimp_progress_set_value (progress, progress_current++ / progress_max);
}
/* Flip all vectors */
for (list = gimp_image_get_vectors_iter (image);
list;
list = g_list_next (list))
{
GimpItem *item = list->data;
gimp_item_flip (item, context, flip_type, axis, FALSE);
if (progress)
gimp_progress_set_value (progress, progress_current++ / progress_max);
}
/* Don't forget the selection mask! */
gimp_item_flip (GIMP_ITEM (gimp_image_get_mask (image)), context,
flip_type, axis, TRUE);
if (progress)
gimp_progress_set_value (progress, progress_current++ / progress_max);
/* Flip all layers */
for (list = gimp_image_get_layer_iter (image);
list;
list = g_list_next (list))
{
GimpItem *item = list->data;
gimp_item_flip (item, context, flip_type, axis, FALSE);
if (progress)
gimp_progress_set_value (progress, progress_current++ / progress_max);
}
/* Flip all Guides */
for (list = gimp_image_get_guides (image);
list;
list = g_list_next (list))
{
GimpGuide *guide = list->data;
gint position = gimp_guide_get_position (guide);
switch (gimp_guide_get_orientation (guide))
{
case GIMP_ORIENTATION_HORIZONTAL:
if (flip_type == GIMP_ORIENTATION_VERTICAL)
gimp_image_move_guide (image, guide,
gimp_image_get_height (image) - position,
TRUE);
break;
case GIMP_ORIENTATION_VERTICAL:
if (flip_type == GIMP_ORIENTATION_HORIZONTAL)
gimp_image_move_guide (image, guide,
gimp_image_get_width (image) - position,
TRUE);
break;
default:
break;
}
}
/* Flip all sample points */
for (list = gimp_image_get_sample_points (image);
list;
list = g_list_next (list))
{
GimpSamplePoint *sample_point = list->data;
if (flip_type == GIMP_ORIENTATION_VERTICAL)
gimp_image_move_sample_point (image, sample_point,
sample_point->x,
gimp_image_get_height (image) -
sample_point->y,
TRUE);
if (flip_type == GIMP_ORIENTATION_HORIZONTAL)
gimp_image_move_sample_point (image, sample_point,
gimp_image_get_width (image) -
sample_point->x,
sample_point->y,
TRUE);
}
gimp_image_undo_group_end (image);
gimp_unset_busy (image->gimp);
}