299 lines
9.6 KiB
C
299 lines
9.6 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-loops.h"
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#include "pika-memsize.h"
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#include "pikachannel.h"
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#include "pikamaskundo.h"
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enum
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{
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PROP_0,
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PROP_CONVERT_FORMAT
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};
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static void pika_mask_undo_constructed (GObject *object);
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static void pika_mask_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_mask_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_mask_undo_get_memsize (PikaObject *object,
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gint64 *gui_size);
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static void pika_mask_undo_pop (PikaUndo *undo,
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PikaUndoMode undo_mode,
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PikaUndoAccumulator *accum);
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static void pika_mask_undo_free (PikaUndo *undo,
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PikaUndoMode undo_mode);
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G_DEFINE_TYPE (PikaMaskUndo, pika_mask_undo, PIKA_TYPE_ITEM_UNDO)
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#define parent_class pika_mask_undo_parent_class
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static void
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pika_mask_undo_class_init (PikaMaskUndoClass *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_mask_undo_constructed;
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object_class->set_property = pika_mask_undo_set_property;
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object_class->get_property = pika_mask_undo_get_property;
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pika_object_class->get_memsize = pika_mask_undo_get_memsize;
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undo_class->pop = pika_mask_undo_pop;
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undo_class->free = pika_mask_undo_free;
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g_object_class_install_property (object_class, PROP_CONVERT_FORMAT,
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g_param_spec_boolean ("convert-format",
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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_mask_undo_init (PikaMaskUndo *undo)
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{
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}
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static void
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pika_mask_undo_constructed (GObject *object)
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{
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PikaMaskUndo *mask_undo = PIKA_MASK_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_CHANNEL (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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mask_undo->format = pika_drawable_get_format (drawable);
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if (pika_item_bounds (item,
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&mask_undo->bounds.x,
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&mask_undo->bounds.y,
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&mask_undo->bounds.width,
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&mask_undo->bounds.height))
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{
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GeglBuffer *buffer = pika_drawable_get_buffer (drawable);
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GeglRectangle rect;
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gegl_rectangle_align_to_buffer (&rect, &mask_undo->bounds, buffer,
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GEGL_RECTANGLE_ALIGNMENT_SUPERSET);
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mask_undo->buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
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rect.width,
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rect.height),
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mask_undo->format);
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pika_gegl_buffer_copy (buffer, &rect, GEGL_ABYSS_NONE,
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mask_undo->buffer, GEGL_RECTANGLE (0, 0, 0, 0));
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mask_undo->x = rect.x;
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mask_undo->y = rect.y;
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}
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}
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static void
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pika_mask_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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PikaMaskUndo *mask_undo = PIKA_MASK_UNDO (object);
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switch (property_id)
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{
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case PROP_CONVERT_FORMAT:
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mask_undo->convert_format = 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_mask_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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PikaMaskUndo *mask_undo = PIKA_MASK_UNDO (object);
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switch (property_id)
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{
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case PROP_CONVERT_FORMAT:
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g_value_set_boolean (value, mask_undo->convert_format);
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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_mask_undo_get_memsize (PikaObject *object,
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gint64 *gui_size)
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{
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PikaMaskUndo *mask_undo = PIKA_MASK_UNDO (object);
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gint64 memsize = 0;
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memsize += pika_gegl_buffer_get_memsize (mask_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_mask_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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PikaMaskUndo *mask_undo = PIKA_MASK_UNDO (undo);
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PikaItem *item = PIKA_ITEM_UNDO (undo)->item;
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PikaDrawable *drawable = PIKA_DRAWABLE (item);
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PikaChannel *channel = PIKA_CHANNEL (item);
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GeglBuffer *new_buffer = NULL;
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GeglRectangle bounds = {};
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GeglRectangle rect = {};
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const Babl *format;
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PIKA_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
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format = pika_drawable_get_format (drawable);
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if (pika_item_bounds (item,
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&bounds.x,
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&bounds.y,
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&bounds.width,
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&bounds.height))
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{
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GeglBuffer *buffer = pika_drawable_get_buffer (drawable);
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gegl_rectangle_align_to_buffer (&rect, &bounds, buffer,
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GEGL_RECTANGLE_ALIGNMENT_SUPERSET);
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new_buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
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rect.width, rect.height),
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format);
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pika_gegl_buffer_copy (buffer, &rect, GEGL_ABYSS_NONE,
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new_buffer, GEGL_RECTANGLE (0, 0, 0, 0));
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gegl_buffer_clear (buffer, &rect);
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}
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if (mask_undo->convert_format)
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{
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GeglBuffer *buffer;
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gint width = pika_item_get_width (item);
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gint height = pika_item_get_height (item);
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buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0, width, height),
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mask_undo->format);
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pika_drawable_set_buffer (drawable, FALSE, NULL, buffer);
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g_object_unref (buffer);
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}
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if (mask_undo->buffer)
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{
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pika_gegl_buffer_copy (mask_undo->buffer,
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NULL,
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GEGL_ABYSS_NONE,
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pika_drawable_get_buffer (drawable),
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GEGL_RECTANGLE (mask_undo->x, mask_undo->y, 0, 0));
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g_object_unref (mask_undo->buffer);
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}
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/* invalidate the current bounds and boundary of the mask */
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pika_drawable_invalidate_boundary (drawable);
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if (mask_undo->buffer)
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{
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channel->empty = FALSE;
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channel->x1 = mask_undo->bounds.x;
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channel->y1 = mask_undo->bounds.y;
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channel->x2 = mask_undo->bounds.x + mask_undo->bounds.width;
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channel->y2 = mask_undo->bounds.y + mask_undo->bounds.height;
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}
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else
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{
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channel->empty = TRUE;
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channel->x1 = 0;
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channel->y1 = 0;
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channel->x2 = pika_item_get_width (item);
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channel->y2 = pika_item_get_height (item);
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}
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/* we know the bounds */
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channel->bounds_known = TRUE;
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/* set the new mask undo parameters */
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mask_undo->format = format;
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mask_undo->buffer = new_buffer;
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mask_undo->bounds = bounds;
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mask_undo->x = rect.x;
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mask_undo->y = rect.y;
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pika_drawable_update (drawable, 0, 0, -1, -1);
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}
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static void
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pika_mask_undo_free (PikaUndo *undo,
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PikaUndoMode undo_mode)
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{
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PikaMaskUndo *mask_undo = PIKA_MASK_UNDO (undo);
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g_clear_object (&mask_undo->buffer);
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PIKA_UNDO_CLASS (parent_class)->free (undo, undo_mode);
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}
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