223 lines
7.7 KiB
C
223 lines
7.7 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 "libpikabase/pikabase.h"
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#include "core-types.h"
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#include "gegl/pika-gegl-utils.h"
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#include "pika-memsize.h"
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#include "pikaimage.h"
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#include "pikadrawable.h"
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#include "pikadrawablemodundo.h"
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enum
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{
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PROP_0,
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PROP_COPY_BUFFER
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};
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static void pika_drawable_mod_undo_constructed (GObject *object);
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static void pika_drawable_mod_undo_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec);
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static void pika_drawable_mod_undo_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec);
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static gint64 pika_drawable_mod_undo_get_memsize (PikaObject *object,
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gint64 *gui_size);
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static void pika_drawable_mod_undo_pop (PikaUndo *undo,
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PikaUndoMode undo_mode,
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PikaUndoAccumulator *accum);
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static void pika_drawable_mod_undo_free (PikaUndo *undo,
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PikaUndoMode undo_mode);
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G_DEFINE_TYPE (PikaDrawableModUndo, pika_drawable_mod_undo, PIKA_TYPE_ITEM_UNDO)
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#define parent_class pika_drawable_mod_undo_parent_class
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static void
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pika_drawable_mod_undo_class_init (PikaDrawableModUndoClass *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_drawable_mod_undo_constructed;
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object_class->set_property = pika_drawable_mod_undo_set_property;
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object_class->get_property = pika_drawable_mod_undo_get_property;
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pika_object_class->get_memsize = pika_drawable_mod_undo_get_memsize;
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undo_class->pop = pika_drawable_mod_undo_pop;
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undo_class->free = pika_drawable_mod_undo_free;
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g_object_class_install_property (object_class, PROP_COPY_BUFFER,
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g_param_spec_boolean ("copy-buffer",
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NULL, NULL,
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FALSE,
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PIKA_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY));
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}
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static void
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pika_drawable_mod_undo_init (PikaDrawableModUndo *undo)
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{
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}
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static void
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pika_drawable_mod_undo_constructed (GObject *object)
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{
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PikaDrawableModUndo *drawable_mod_undo = PIKA_DRAWABLE_MOD_UNDO (object);
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PikaItem *item;
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PikaDrawable *drawable;
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G_OBJECT_CLASS (parent_class)->constructed (object);
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pika_assert (PIKA_IS_DRAWABLE (PIKA_ITEM_UNDO (object)->item));
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item = PIKA_ITEM_UNDO (object)->item;
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drawable = PIKA_DRAWABLE (item);
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if (drawable_mod_undo->copy_buffer)
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{
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drawable_mod_undo->buffer =
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pika_gegl_buffer_dup (pika_drawable_get_buffer (drawable));
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}
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else
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{
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drawable_mod_undo->buffer =
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g_object_ref (pika_drawable_get_buffer (drawable));
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}
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pika_item_get_offset (item,
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&drawable_mod_undo->offset_x,
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&drawable_mod_undo->offset_y);
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}
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static void
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pika_drawable_mod_undo_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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PikaDrawableModUndo *drawable_mod_undo = PIKA_DRAWABLE_MOD_UNDO (object);
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switch (property_id)
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{
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case PROP_COPY_BUFFER:
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drawable_mod_undo->copy_buffer = g_value_get_boolean (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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pika_drawable_mod_undo_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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PikaDrawableModUndo *drawable_mod_undo = PIKA_DRAWABLE_MOD_UNDO (object);
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switch (property_id)
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{
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case PROP_COPY_BUFFER:
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g_value_set_boolean (value, drawable_mod_undo->copy_buffer);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static gint64
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pika_drawable_mod_undo_get_memsize (PikaObject *object,
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gint64 *gui_size)
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{
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PikaDrawableModUndo *drawable_mod_undo = PIKA_DRAWABLE_MOD_UNDO (object);
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gint64 memsize = 0;
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memsize += pika_gegl_buffer_get_memsize (drawable_mod_undo->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_drawable_mod_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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PikaDrawableModUndo *drawable_mod_undo = PIKA_DRAWABLE_MOD_UNDO (undo);
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PikaDrawable *drawable = PIKA_DRAWABLE (PIKA_ITEM_UNDO (undo)->item);
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GeglBuffer *buffer;
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gint offset_x;
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gint offset_y;
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PIKA_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
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buffer = drawable_mod_undo->buffer;
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offset_x = drawable_mod_undo->offset_x;
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offset_y = drawable_mod_undo->offset_y;
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drawable_mod_undo->buffer = g_object_ref (pika_drawable_get_buffer (drawable));
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pika_item_get_offset (PIKA_ITEM (drawable),
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&drawable_mod_undo->offset_x,
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&drawable_mod_undo->offset_y);
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pika_drawable_set_buffer_full (drawable, FALSE, NULL,
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buffer,
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GEGL_RECTANGLE (offset_x, offset_y, 0, 0),
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TRUE);
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g_object_unref (buffer);
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}
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static void
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pika_drawable_mod_undo_free (PikaUndo *undo,
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PikaUndoMode undo_mode)
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{
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PikaDrawableModUndo *drawable_mod_undo = PIKA_DRAWABLE_MOD_UNDO (undo);
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g_clear_object (&drawable_mod_undo->buffer);
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PIKA_UNDO_CLASS (parent_class)->free (undo, undo_mode);
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}
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