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-rw-r--r--app/core/gimpdrawableundo.c207
1 files changed, 207 insertions, 0 deletions
diff --git a/app/core/gimpdrawableundo.c b/app/core/gimpdrawableundo.c
new file mode 100644
index 0000000..78b8f39
--- /dev/null
+++ b/app/core/gimpdrawableundo.c
@@ -0,0 +1,207 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gegl.h>
+
+#include "libgimpbase/gimpbase.h"
+
+#include "core-types.h"
+
+#include "gimp-memsize.h"
+#include "gimpimage.h"
+#include "gimpdrawable.h"
+#include "gimpdrawableundo.h"
+
+
+enum
+{
+ PROP_0,
+ PROP_BUFFER,
+ PROP_X,
+ PROP_Y
+};
+
+
+static void gimp_drawable_undo_constructed (GObject *object);
+static void gimp_drawable_undo_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gimp_drawable_undo_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+static gint64 gimp_drawable_undo_get_memsize (GimpObject *object,
+ gint64 *gui_size);
+
+static void gimp_drawable_undo_pop (GimpUndo *undo,
+ GimpUndoMode undo_mode,
+ GimpUndoAccumulator *accum);
+static void gimp_drawable_undo_free (GimpUndo *undo,
+ GimpUndoMode undo_mode);
+
+
+G_DEFINE_TYPE (GimpDrawableUndo, gimp_drawable_undo, GIMP_TYPE_ITEM_UNDO)
+
+#define parent_class gimp_drawable_undo_parent_class
+
+
+static void
+gimp_drawable_undo_class_init (GimpDrawableUndoClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GimpObjectClass *gimp_object_class = GIMP_OBJECT_CLASS (klass);
+ GimpUndoClass *undo_class = GIMP_UNDO_CLASS (klass);
+
+ object_class->constructed = gimp_drawable_undo_constructed;
+ object_class->set_property = gimp_drawable_undo_set_property;
+ object_class->get_property = gimp_drawable_undo_get_property;
+
+ gimp_object_class->get_memsize = gimp_drawable_undo_get_memsize;
+
+ undo_class->pop = gimp_drawable_undo_pop;
+ undo_class->free = gimp_drawable_undo_free;
+
+ g_object_class_install_property (object_class, PROP_BUFFER,
+ g_param_spec_object ("buffer", NULL, NULL,
+ GEGL_TYPE_BUFFER,
+ GIMP_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+
+ g_object_class_install_property (object_class, PROP_X,
+ g_param_spec_int ("x", NULL, NULL,
+ 0, GIMP_MAX_IMAGE_SIZE, 0,
+ GIMP_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+
+ g_object_class_install_property (object_class, PROP_Y,
+ g_param_spec_int ("y", NULL, NULL,
+ 0, GIMP_MAX_IMAGE_SIZE, 0,
+ GIMP_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+}
+
+static void
+gimp_drawable_undo_init (GimpDrawableUndo *undo)
+{
+}
+
+static void
+gimp_drawable_undo_constructed (GObject *object)
+{
+ GimpDrawableUndo *drawable_undo = GIMP_DRAWABLE_UNDO (object);
+
+ G_OBJECT_CLASS (parent_class)->constructed (object);
+
+ gimp_assert (GIMP_IS_DRAWABLE (GIMP_ITEM_UNDO (object)->item));
+ gimp_assert (GEGL_IS_BUFFER (drawable_undo->buffer));
+}
+
+static void
+gimp_drawable_undo_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GimpDrawableUndo *drawable_undo = GIMP_DRAWABLE_UNDO (object);
+
+ switch (property_id)
+ {
+ case PROP_BUFFER:
+ drawable_undo->buffer = g_value_dup_object (value);
+ break;
+ case PROP_X:
+ drawable_undo->x = g_value_get_int (value);
+ break;
+ case PROP_Y:
+ drawable_undo->y = g_value_get_int (value);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_drawable_undo_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GimpDrawableUndo *drawable_undo = GIMP_DRAWABLE_UNDO (object);
+
+ switch (property_id)
+ {
+ case PROP_BUFFER:
+ g_value_set_object (value, drawable_undo->buffer);
+ break;
+ case PROP_X:
+ g_value_set_int (value, drawable_undo->x);
+ break;
+ case PROP_Y:
+ g_value_set_int (value, drawable_undo->y);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static gint64
+gimp_drawable_undo_get_memsize (GimpObject *object,
+ gint64 *gui_size)
+{
+ GimpDrawableUndo *drawable_undo = GIMP_DRAWABLE_UNDO (object);
+ gint64 memsize = 0;
+
+ memsize += gimp_gegl_buffer_get_memsize (drawable_undo->buffer);
+
+ return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object,
+ gui_size);
+}
+
+static void
+gimp_drawable_undo_pop (GimpUndo *undo,
+ GimpUndoMode undo_mode,
+ GimpUndoAccumulator *accum)
+{
+ GimpDrawableUndo *drawable_undo = GIMP_DRAWABLE_UNDO (undo);
+
+ GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
+
+ gimp_drawable_swap_pixels (GIMP_DRAWABLE (GIMP_ITEM_UNDO (undo)->item),
+ drawable_undo->buffer,
+ drawable_undo->x,
+ drawable_undo->y);
+}
+
+static void
+gimp_drawable_undo_free (GimpUndo *undo,
+ GimpUndoMode undo_mode)
+{
+ GimpDrawableUndo *drawable_undo = GIMP_DRAWABLE_UNDO (undo);
+
+ g_clear_object (&drawable_undo->buffer);
+
+ GIMP_UNDO_CLASS (parent_class)->free (undo, undo_mode);
+}