mirror of https://github.com/GNOME/gimp.git
150 lines
4.5 KiB
C
150 lines
4.5 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include "core-types.h"
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#include "gimp.h"
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#include "gimpcontainer.h"
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#include "gimpcontext.h"
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#include "gimpguide.h"
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#include "gimpimage.h"
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#include "gimpimage-flip.h"
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#include "gimpimage-guides.h"
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#include "gimpimage-sample-points.h"
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#include "gimpimage-undo.h"
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#include "gimpimage-undo-push.h"
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#include "gimpitem.h"
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#include "gimpobjectqueue.h"
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#include "gimpprogress.h"
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#include "gimpsamplepoint.h"
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void
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gimp_image_flip (GimpImage *image,
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GimpContext *context,
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GimpOrientationType flip_type,
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GimpProgress *progress)
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{
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GimpObjectQueue *queue;
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GimpItem *item;
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GList *list;
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gdouble axis;
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g_return_if_fail (GIMP_IS_IMAGE (image));
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g_return_if_fail (GIMP_IS_CONTEXT (context));
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g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
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gimp_set_busy (image->gimp);
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switch (flip_type)
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{
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case GIMP_ORIENTATION_HORIZONTAL:
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axis = (gdouble) gimp_image_get_width (image) / 2.0;
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break;
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case GIMP_ORIENTATION_VERTICAL:
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axis = (gdouble) gimp_image_get_height (image) / 2.0;
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break;
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default:
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g_warning ("%s: unknown flip_type", G_STRFUNC);
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return;
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}
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queue = gimp_object_queue_new (progress);
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progress = GIMP_PROGRESS (queue);
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gimp_object_queue_push_container (queue, gimp_image_get_layers (image));
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gimp_object_queue_push (queue, gimp_image_get_mask (image));
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gimp_object_queue_push_container (queue, gimp_image_get_channels (image));
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gimp_object_queue_push_container (queue, gimp_image_get_vectors (image));
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gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_IMAGE_FLIP, NULL);
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/* Flip all layers, channels (including selection mask), and vectors */
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while ((item = gimp_object_queue_pop (queue)))
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{
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gimp_item_flip (item, context, flip_type, axis, FALSE);
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gimp_progress_set_value (progress, 1.0);
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}
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/* Flip all Guides */
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for (list = gimp_image_get_guides (image);
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list;
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list = g_list_next (list))
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{
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GimpGuide *guide = list->data;
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gint position = gimp_guide_get_position (guide);
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switch (gimp_guide_get_orientation (guide))
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{
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case GIMP_ORIENTATION_HORIZONTAL:
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if (flip_type == GIMP_ORIENTATION_VERTICAL)
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gimp_image_move_guide (image, guide,
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gimp_image_get_height (image) - position,
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TRUE);
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break;
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case GIMP_ORIENTATION_VERTICAL:
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if (flip_type == GIMP_ORIENTATION_HORIZONTAL)
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gimp_image_move_guide (image, guide,
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gimp_image_get_width (image) - position,
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TRUE);
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break;
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default:
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break;
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}
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}
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/* Flip all sample points */
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for (list = gimp_image_get_sample_points (image);
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list;
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list = g_list_next (list))
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{
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GimpSamplePoint *sample_point = list->data;
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gint x;
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gint y;
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gimp_sample_point_get_position (sample_point, &x, &y);
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if (flip_type == GIMP_ORIENTATION_VERTICAL)
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gimp_image_move_sample_point (image, sample_point,
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x,
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gimp_image_get_height (image) - y,
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TRUE);
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if (flip_type == GIMP_ORIENTATION_HORIZONTAL)
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gimp_image_move_sample_point (image, sample_point,
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gimp_image_get_width (image) - x,
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y,
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TRUE);
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}
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gimp_image_undo_group_end (image);
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g_object_unref (queue);
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gimp_unset_busy (image->gimp);
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}
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