258 lines
8.8 KiB
C
258 lines
8.8 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 "core-types.h"
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#include "pika-memsize.h"
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#include "pikaimage.h"
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#include "pikagrouplayer.h"
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#include "pikagrouplayerundo.h"
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static void pika_group_layer_undo_constructed (GObject *object);
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static gint64 pika_group_layer_undo_get_memsize (PikaObject *object,
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gint64 *gui_size);
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static void pika_group_layer_undo_pop (PikaUndo *undo,
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PikaUndoMode undo_mode,
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PikaUndoAccumulator *accum);
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static void pika_group_layer_undo_free (PikaUndo *undo,
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PikaUndoMode undo_mode);
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G_DEFINE_TYPE (PikaGroupLayerUndo, pika_group_layer_undo, PIKA_TYPE_ITEM_UNDO)
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#define parent_class pika_group_layer_undo_parent_class
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static void
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pika_group_layer_undo_class_init (PikaGroupLayerUndoClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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PikaObjectClass *pika_object_class = PIKA_OBJECT_CLASS (klass);
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PikaUndoClass *undo_class = PIKA_UNDO_CLASS (klass);
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object_class->constructed = pika_group_layer_undo_constructed;
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pika_object_class->get_memsize = pika_group_layer_undo_get_memsize;
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undo_class->pop = pika_group_layer_undo_pop;
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undo_class->free = pika_group_layer_undo_free;
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}
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static void
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pika_group_layer_undo_init (PikaGroupLayerUndo *undo)
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{
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}
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static void
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pika_group_layer_undo_constructed (GObject *object)
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{
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PikaGroupLayerUndo *group_layer_undo = PIKA_GROUP_LAYER_UNDO (object);
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PikaGroupLayer *group;
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G_OBJECT_CLASS (parent_class)->constructed (object);
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g_return_if_fail (PIKA_IS_GROUP_LAYER (PIKA_ITEM_UNDO (object)->item));
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group = PIKA_GROUP_LAYER (PIKA_ITEM_UNDO (object)->item);
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switch (PIKA_UNDO (object)->undo_type)
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{
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case PIKA_UNDO_GROUP_LAYER_SUSPEND_RESIZE:
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case PIKA_UNDO_GROUP_LAYER_RESUME_RESIZE:
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case PIKA_UNDO_GROUP_LAYER_SUSPEND_MASK:
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case PIKA_UNDO_GROUP_LAYER_START_TRANSFORM:
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case PIKA_UNDO_GROUP_LAYER_END_TRANSFORM:
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break;
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case PIKA_UNDO_GROUP_LAYER_RESUME_MASK:
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group_layer_undo->mask_buffer =
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_pika_group_layer_get_suspended_mask(group,
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&group_layer_undo->mask_bounds);
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if (group_layer_undo->mask_buffer)
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g_object_ref (group_layer_undo->mask_buffer);
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break;
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case PIKA_UNDO_GROUP_LAYER_CONVERT:
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group_layer_undo->prev_type = pika_drawable_get_base_type (PIKA_DRAWABLE (group));
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group_layer_undo->prev_precision = pika_drawable_get_precision (PIKA_DRAWABLE (group));
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group_layer_undo->prev_has_alpha = pika_drawable_has_alpha (PIKA_DRAWABLE (group));
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break;
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default:
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g_return_if_reached ();
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}
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}
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static gint64
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pika_group_layer_undo_get_memsize (PikaObject *object,
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gint64 *gui_size)
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{
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PikaGroupLayerUndo *group_layer_undo = PIKA_GROUP_LAYER_UNDO (object);
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gint64 memsize = 0;
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memsize += pika_gegl_buffer_get_memsize (group_layer_undo->mask_buffer);
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return memsize + PIKA_OBJECT_CLASS (parent_class)->get_memsize (object,
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gui_size);
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}
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static void
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pika_group_layer_undo_pop (PikaUndo *undo,
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PikaUndoMode undo_mode,
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PikaUndoAccumulator *accum)
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{
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PikaGroupLayerUndo *group_layer_undo = PIKA_GROUP_LAYER_UNDO (undo);
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PikaGroupLayer *group;
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group = PIKA_GROUP_LAYER (PIKA_ITEM_UNDO (undo)->item);
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PIKA_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
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switch (undo->undo_type)
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{
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case PIKA_UNDO_GROUP_LAYER_SUSPEND_RESIZE:
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case PIKA_UNDO_GROUP_LAYER_RESUME_RESIZE:
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if ((undo_mode == PIKA_UNDO_MODE_UNDO &&
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undo->undo_type == PIKA_UNDO_GROUP_LAYER_SUSPEND_RESIZE) ||
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(undo_mode == PIKA_UNDO_MODE_REDO &&
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undo->undo_type == PIKA_UNDO_GROUP_LAYER_RESUME_RESIZE))
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{
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/* resume group layer auto-resizing */
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pika_group_layer_resume_resize (group, FALSE);
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}
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else
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{
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/* suspend group layer auto-resizing */
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pika_group_layer_suspend_resize (group, FALSE);
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if (undo->undo_type == PIKA_UNDO_GROUP_LAYER_RESUME_RESIZE &&
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group_layer_undo->mask_buffer)
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{
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PikaLayerMask *mask = pika_layer_get_mask (PIKA_LAYER (group));
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pika_drawable_set_buffer_full (PIKA_DRAWABLE (mask),
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FALSE, NULL,
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group_layer_undo->mask_buffer,
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&group_layer_undo->mask_bounds,
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TRUE);
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}
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}
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break;
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case PIKA_UNDO_GROUP_LAYER_SUSPEND_MASK:
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case PIKA_UNDO_GROUP_LAYER_RESUME_MASK:
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if ((undo_mode == PIKA_UNDO_MODE_UNDO &&
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undo->undo_type == PIKA_UNDO_GROUP_LAYER_SUSPEND_MASK) ||
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(undo_mode == PIKA_UNDO_MODE_REDO &&
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undo->undo_type == PIKA_UNDO_GROUP_LAYER_RESUME_MASK))
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{
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/* resume group layer mask auto-resizing */
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pika_group_layer_resume_mask (group, FALSE);
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}
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else
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{
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/* suspend group layer mask auto-resizing */
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pika_group_layer_suspend_mask (group, FALSE);
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if (undo->undo_type == PIKA_UNDO_GROUP_LAYER_RESUME_MASK &&
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group_layer_undo->mask_buffer)
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{
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_pika_group_layer_set_suspended_mask (
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group,
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group_layer_undo->mask_buffer,
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&group_layer_undo->mask_bounds);
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}
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}
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break;
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case PIKA_UNDO_GROUP_LAYER_START_TRANSFORM:
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case PIKA_UNDO_GROUP_LAYER_END_TRANSFORM:
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if ((undo_mode == PIKA_UNDO_MODE_UNDO &&
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undo->undo_type == PIKA_UNDO_GROUP_LAYER_START_TRANSFORM) ||
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(undo_mode == PIKA_UNDO_MODE_REDO &&
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undo->undo_type == PIKA_UNDO_GROUP_LAYER_END_TRANSFORM))
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{
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/* end group layer transform operation */
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_pika_group_layer_end_transform (group, FALSE);
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}
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else
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{
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/* start group layer transform operation */
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_pika_group_layer_start_transform (group, FALSE);
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}
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break;
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case PIKA_UNDO_GROUP_LAYER_CONVERT:
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{
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PikaImageBaseType type;
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PikaPrecision precision;
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gboolean has_alpha;
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type = pika_drawable_get_base_type (PIKA_DRAWABLE (group));
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precision = pika_drawable_get_precision (PIKA_DRAWABLE (group));
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has_alpha = pika_drawable_has_alpha (PIKA_DRAWABLE (group));
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pika_drawable_convert_type (PIKA_DRAWABLE (group),
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pika_item_get_image (PIKA_ITEM (group)),
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group_layer_undo->prev_type,
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group_layer_undo->prev_precision,
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group_layer_undo->prev_has_alpha,
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NULL, NULL,
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0, 0,
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FALSE, NULL);
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group_layer_undo->prev_type = type;
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group_layer_undo->prev_precision = precision;
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group_layer_undo->prev_has_alpha = has_alpha;
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}
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break;
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default:
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g_return_if_reached ();
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}
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}
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static void
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pika_group_layer_undo_free (PikaUndo *undo,
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PikaUndoMode undo_mode)
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{
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PikaGroupLayerUndo *group_layer_undo = PIKA_GROUP_LAYER_UNDO (undo);
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g_clear_object (&group_layer_undo->mask_buffer);
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PIKA_UNDO_CLASS (parent_class)->free (undo, undo_mode);
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}
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