495 lines
15 KiB
C
495 lines
15 KiB
C
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/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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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 <gexiv2/gexiv2.h>
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#include "core-types.h"
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#include "config/pikadialogconfig.h"
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#include "vectors/pikavectors.h"
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#include "pika.h"
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#include "pikacontainer.h"
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#include "pikacontext.h"
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#include "pikaguide.h"
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#include "pikaimage.h"
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#include "pikaimage-flip.h"
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#include "pikaimage-metadata.h"
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#include "pikaimage-rotate.h"
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#include "pikaimage-guides.h"
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#include "pikaimage-sample-points.h"
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#include "pikaimage-undo.h"
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#include "pikaimage-undo-push.h"
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#include "pikaitem.h"
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#include "pikalayer.h"
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#include "pikaobjectqueue.h"
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#include "pikaprogress.h"
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#include "pikasamplepoint.h"
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static void pika_image_rotate_item_offset (PikaImage *image,
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PikaRotationType rotate_type,
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PikaItem *item,
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gint off_x,
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gint off_y);
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static void pika_image_rotate_guides (PikaImage *image,
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PikaRotationType rotate_type);
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static void pika_image_rotate_sample_points (PikaImage *image,
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PikaRotationType rotate_type);
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static void pika_image_metadata_rotate (PikaImage *image,
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PikaContext *context,
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GExiv2Orientation orientation,
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PikaProgress *progress);
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/* Public Functions */
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void
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pika_image_rotate (PikaImage *image,
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PikaContext *context,
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PikaRotationType rotate_type,
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PikaProgress *progress)
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{
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PikaObjectQueue *queue;
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PikaItem *item;
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GList *list;
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gdouble center_x;
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gdouble center_y;
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gint new_image_width;
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gint new_image_height;
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gint previous_image_width;
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gint previous_image_height;
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gint offset_x;
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gint offset_y;
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gboolean size_changed;
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g_return_if_fail (PIKA_IS_IMAGE (image));
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g_return_if_fail (PIKA_IS_CONTEXT (context));
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g_return_if_fail (progress == NULL || PIKA_IS_PROGRESS (progress));
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previous_image_width = pika_image_get_width (image);
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previous_image_height = pika_image_get_height (image);
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center_x = previous_image_width / 2.0;
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center_y = previous_image_height / 2.0;
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/* Resize the image (if needed) */
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switch (rotate_type)
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{
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case PIKA_ROTATE_90:
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case PIKA_ROTATE_270:
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new_image_width = pika_image_get_height (image);
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new_image_height = pika_image_get_width (image);
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size_changed = TRUE;
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offset_x = (pika_image_get_width (image) - new_image_width) / 2;
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offset_y = (pika_image_get_height (image) - new_image_height) / 2;
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break;
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case PIKA_ROTATE_180:
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new_image_width = pika_image_get_width (image);
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new_image_height = pika_image_get_height (image);
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size_changed = FALSE;
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offset_x = 0;
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offset_y = 0;
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break;
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default:
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g_return_if_reached ();
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return;
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}
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pika_set_busy (image->pika);
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queue = pika_object_queue_new (progress);
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progress = PIKA_PROGRESS (queue);
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pika_object_queue_push_container (queue, pika_image_get_layers (image));
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pika_object_queue_push (queue, pika_image_get_mask (image));
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pika_object_queue_push_container (queue, pika_image_get_channels (image));
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pika_object_queue_push_container (queue, pika_image_get_vectors (image));
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g_object_freeze_notify (G_OBJECT (image));
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pika_image_undo_group_start (image, PIKA_UNDO_GROUP_IMAGE_ROTATE, NULL);
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/* Rotate all layers, channels (including selection mask), and vectors */
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while ((item = pika_object_queue_pop (queue)))
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{
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gint off_x;
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gint off_y;
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pika_item_get_offset (item, &off_x, &off_y);
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pika_item_rotate (item, context, rotate_type, center_x, center_y, FALSE);
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if (PIKA_IS_LAYER (item))
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{
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pika_image_rotate_item_offset (image, rotate_type, item, off_x, off_y);
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}
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else
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{
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pika_item_set_offset (item, 0, 0);
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if (PIKA_IS_VECTORS (item))
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{
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pika_item_set_size (item, new_image_width, new_image_height);
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pika_item_translate (item,
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(new_image_width - pika_image_get_width (image)) / 2,
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(new_image_height - pika_image_get_height (image)) / 2,
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FALSE);
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}
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}
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pika_progress_set_value (progress, 1.0);
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}
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/* Rotate all Guides */
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pika_image_rotate_guides (image, rotate_type);
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/* Rotate all sample points */
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pika_image_rotate_sample_points (image, rotate_type);
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/* Resize the image (if needed) */
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if (size_changed)
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{
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gdouble xres;
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gdouble yres;
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pika_image_undo_push_image_size (image,
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NULL,
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offset_x,
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offset_y,
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new_image_width,
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new_image_height);
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g_object_set (image,
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"width", new_image_width,
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"height", new_image_height,
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NULL);
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pika_image_get_resolution (image, &xres, &yres);
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if (xres != yres)
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pika_image_set_resolution (image, yres, xres);
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}
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/* Notify guide movements */
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for (list = pika_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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pika_image_guide_moved (image, list->data);
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}
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/* Notify sample point movements */
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for (list = pika_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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pika_image_sample_point_moved (image, list->data);
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}
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pika_image_undo_group_end (image);
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g_object_unref (queue);
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if (size_changed)
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pika_image_size_changed_detailed (image,
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-offset_x,
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-offset_y,
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previous_image_width,
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previous_image_height);
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g_object_thaw_notify (G_OBJECT (image));
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pika_unset_busy (image->pika);
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}
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void
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pika_image_import_rotation_metadata (PikaImage *image,
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PikaContext *context,
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PikaProgress *progress,
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gboolean interactive)
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{
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PikaMetadata *metadata;
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g_return_if_fail (PIKA_IS_IMAGE (image));
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g_return_if_fail (PIKA_IS_CONTEXT (context));
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g_return_if_fail (progress == NULL || PIKA_IS_PROGRESS (progress));
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metadata = pika_image_get_metadata (image);
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if (metadata)
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{
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PikaMetadataRotationPolicy policy;
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policy = PIKA_DIALOG_CONFIG (image->pika->config)->metadata_rotation_policy;
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if (policy == PIKA_METADATA_ROTATION_POLICY_ASK)
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{
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if (interactive)
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{
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gboolean dont_ask = FALSE;
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policy = pika_query_rotation_policy (image->pika, image,
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context, &dont_ask);
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if (dont_ask)
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{
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g_object_set (G_OBJECT (image->pika->config),
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"metadata-rotation-policy", policy,
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NULL);
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}
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}
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else
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{
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policy = PIKA_METADATA_ROTATION_POLICY_ROTATE;
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}
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}
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if (policy == PIKA_METADATA_ROTATION_POLICY_ROTATE)
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pika_image_metadata_rotate (image, context,
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gexiv2_metadata_try_get_orientation (GEXIV2_METADATA (metadata), NULL),
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progress);
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gexiv2_metadata_try_set_orientation (GEXIV2_METADATA (metadata),
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GEXIV2_ORIENTATION_NORMAL,
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NULL);
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}
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}
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/* Private Functions */
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static void
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pika_image_rotate_item_offset (PikaImage *image,
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PikaRotationType rotate_type,
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PikaItem *item,
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gint off_x,
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gint off_y)
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{
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gint x = 0;
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gint y = 0;
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switch (rotate_type)
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{
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case PIKA_ROTATE_90:
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x = pika_image_get_height (image) - off_y - pika_item_get_width (item);
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y = off_x;
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break;
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case PIKA_ROTATE_270:
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x = off_y;
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y = pika_image_get_width (image) - off_x - pika_item_get_height (item);
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break;
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case PIKA_ROTATE_180:
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return;
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default:
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g_return_if_reached ();
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}
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pika_item_get_offset (item, &off_x, &off_y);
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x -= off_x;
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y -= off_y;
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if (x || y)
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pika_item_translate (item, x, y, FALSE);
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}
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static void
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pika_image_rotate_guides (PikaImage *image,
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PikaRotationType rotate_type)
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{
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GList *list;
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/* Rotate all Guides */
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for (list = pika_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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PikaGuide *guide = list->data;
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PikaOrientationType orientation = pika_guide_get_orientation (guide);
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gint position = pika_guide_get_position (guide);
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switch (rotate_type)
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{
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case PIKA_ROTATE_90:
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switch (orientation)
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{
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case PIKA_ORIENTATION_HORIZONTAL:
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pika_image_undo_push_guide (image, NULL, guide);
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pika_guide_set_orientation (guide, PIKA_ORIENTATION_VERTICAL);
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pika_guide_set_position (guide,
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pika_image_get_height (image) - position);
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break;
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case PIKA_ORIENTATION_VERTICAL:
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pika_image_undo_push_guide (image, NULL, guide);
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pika_guide_set_orientation (guide, PIKA_ORIENTATION_HORIZONTAL);
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break;
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default:
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break;
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}
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break;
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case PIKA_ROTATE_180:
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switch (orientation)
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{
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case PIKA_ORIENTATION_HORIZONTAL:
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pika_image_move_guide (image, guide,
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pika_image_get_height (image) - position,
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TRUE);
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break;
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case PIKA_ORIENTATION_VERTICAL:
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pika_image_move_guide (image, guide,
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pika_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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break;
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case PIKA_ROTATE_270:
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switch (orientation)
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{
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case PIKA_ORIENTATION_HORIZONTAL:
|
||
|
|
pika_image_undo_push_guide (image, NULL, guide);
|
||
|
|
pika_guide_set_orientation (guide, PIKA_ORIENTATION_VERTICAL);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case PIKA_ORIENTATION_VERTICAL:
|
||
|
|
pika_image_undo_push_guide (image, NULL, guide);
|
||
|
|
pika_guide_set_orientation (guide, PIKA_ORIENTATION_HORIZONTAL);
|
||
|
|
pika_guide_set_position (guide,
|
||
|
|
pika_image_get_width (image) - position);
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_image_rotate_sample_points (PikaImage *image,
|
||
|
|
PikaRotationType rotate_type)
|
||
|
|
{
|
||
|
|
GList *list;
|
||
|
|
|
||
|
|
/* Rotate all sample points */
|
||
|
|
for (list = pika_image_get_sample_points (image);
|
||
|
|
list;
|
||
|
|
list = g_list_next (list))
|
||
|
|
{
|
||
|
|
PikaSamplePoint *sample_point = list->data;
|
||
|
|
gint old_x;
|
||
|
|
gint old_y;
|
||
|
|
|
||
|
|
pika_image_undo_push_sample_point (image, NULL, sample_point);
|
||
|
|
|
||
|
|
pika_sample_point_get_position (sample_point, &old_x, &old_y);
|
||
|
|
|
||
|
|
switch (rotate_type)
|
||
|
|
{
|
||
|
|
case PIKA_ROTATE_90:
|
||
|
|
pika_sample_point_set_position (sample_point,
|
||
|
|
pika_image_get_height (image) - old_y,
|
||
|
|
old_x);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case PIKA_ROTATE_180:
|
||
|
|
pika_sample_point_set_position (sample_point,
|
||
|
|
pika_image_get_width (image) - old_x,
|
||
|
|
pika_image_get_height (image) - old_y);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case PIKA_ROTATE_270:
|
||
|
|
pika_sample_point_set_position (sample_point,
|
||
|
|
old_y,
|
||
|
|
pika_image_get_width (image) - old_x);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
pika_image_metadata_rotate (PikaImage *image,
|
||
|
|
PikaContext *context,
|
||
|
|
GExiv2Orientation orientation,
|
||
|
|
PikaProgress *progress)
|
||
|
|
{
|
||
|
|
switch (orientation)
|
||
|
|
{
|
||
|
|
case GEXIV2_ORIENTATION_UNSPECIFIED:
|
||
|
|
case GEXIV2_ORIENTATION_NORMAL: /* standard orientation, do nothing */
|
||
|
|
break;
|
||
|
|
|
||
|
|
case GEXIV2_ORIENTATION_HFLIP:
|
||
|
|
pika_image_flip (image, context, PIKA_ORIENTATION_HORIZONTAL, progress);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case GEXIV2_ORIENTATION_ROT_180:
|
||
|
|
pika_image_rotate (image, context, PIKA_ROTATE_180, progress);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case GEXIV2_ORIENTATION_VFLIP:
|
||
|
|
pika_image_flip (image, context, PIKA_ORIENTATION_VERTICAL, progress);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case GEXIV2_ORIENTATION_ROT_90_HFLIP: /* flipped diagonally around '\' */
|
||
|
|
pika_image_rotate (image, context, PIKA_ROTATE_90, progress);
|
||
|
|
pika_image_flip (image, context, PIKA_ORIENTATION_HORIZONTAL, progress);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case GEXIV2_ORIENTATION_ROT_90: /* 90 CW */
|
||
|
|
pika_image_rotate (image, context, PIKA_ROTATE_90, progress);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case GEXIV2_ORIENTATION_ROT_90_VFLIP: /* flipped diagonally around '/' */
|
||
|
|
pika_image_rotate (image, context, PIKA_ROTATE_90, progress);
|
||
|
|
pika_image_flip (image, context, PIKA_ORIENTATION_VERTICAL, progress);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case GEXIV2_ORIENTATION_ROT_270: /* 90 CCW */
|
||
|
|
pika_image_rotate (image, context, PIKA_ROTATE_270, progress);
|
||
|
|
break;
|
||
|
|
|
||
|
|
default: /* shouldn't happen */
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
