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-rw-r--r--app/core/gimpfloatingselectionundo.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/app/core/gimpfloatingselectionundo.c b/app/core/gimpfloatingselectionundo.c
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+++ b/app/core/gimpfloatingselectionundo.c
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+/* 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 "core-types.h"
+
+#include "gimpdrawable-floating-selection.h"
+#include "gimpfloatingselectionundo.h"
+#include "gimpimage.h"
+#include "gimplayer.h"
+#include "gimplayer-floating-selection.h"
+
+
+static void gimp_floating_selection_undo_constructed (GObject *object);
+
+static void gimp_floating_selection_undo_pop (GimpUndo *undo,
+ GimpUndoMode undo_mode,
+ GimpUndoAccumulator *accum);
+
+
+G_DEFINE_TYPE (GimpFloatingSelectionUndo, gimp_floating_selection_undo,
+ GIMP_TYPE_ITEM_UNDO)
+
+#define parent_class gimp_floating_selection_undo_parent_class
+
+
+static void
+gimp_floating_selection_undo_class_init (GimpFloatingSelectionUndoClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GimpUndoClass *undo_class = GIMP_UNDO_CLASS (klass);
+
+ object_class->constructed = gimp_floating_selection_undo_constructed;
+
+ undo_class->pop = gimp_floating_selection_undo_pop;
+}
+
+static void
+gimp_floating_selection_undo_init (GimpFloatingSelectionUndo *undo)
+{
+}
+
+static void
+gimp_floating_selection_undo_constructed (GObject *object)
+{
+ GimpFloatingSelectionUndo *floating_sel_undo;
+ GimpLayer *layer;
+
+ floating_sel_undo = GIMP_FLOATING_SELECTION_UNDO (object);
+
+ G_OBJECT_CLASS (parent_class)->constructed (object);
+
+ gimp_assert (GIMP_IS_LAYER (GIMP_ITEM_UNDO (object)->item));
+
+ layer = GIMP_LAYER (GIMP_ITEM_UNDO (object)->item);
+
+ switch (GIMP_UNDO (object)->undo_type)
+ {
+ case GIMP_UNDO_FS_TO_LAYER:
+ floating_sel_undo->drawable = gimp_layer_get_floating_sel_drawable (layer);
+ break;
+
+ default:
+ g_return_if_reached ();
+ }
+}
+
+static void
+gimp_floating_selection_undo_pop (GimpUndo *undo,
+ GimpUndoMode undo_mode,
+ GimpUndoAccumulator *accum)
+{
+ GimpFloatingSelectionUndo *floating_sel_undo;
+ GimpLayer *floating_layer;
+
+ floating_sel_undo = GIMP_FLOATING_SELECTION_UNDO (undo);
+ floating_layer = GIMP_LAYER (GIMP_ITEM_UNDO (undo)->item);
+
+ GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
+
+ switch (undo->undo_type)
+ {
+ case GIMP_UNDO_FS_TO_LAYER:
+ if (undo_mode == GIMP_UNDO_MODE_UNDO)
+ {
+ /* Update the preview for the floating selection */
+ gimp_viewable_invalidate_preview (GIMP_VIEWABLE (floating_layer));
+
+ gimp_layer_set_floating_sel_drawable (floating_layer,
+ floating_sel_undo->drawable);
+ gimp_image_set_active_layer (undo->image, floating_layer);
+
+ gimp_drawable_attach_floating_sel (gimp_layer_get_floating_sel_drawable (floating_layer),
+ floating_layer);
+ }
+ else
+ {
+ gimp_drawable_detach_floating_sel (gimp_layer_get_floating_sel_drawable (floating_layer));
+ gimp_layer_set_floating_sel_drawable (floating_layer, NULL);
+ }
+
+ /* When the floating selection is converted to/from a normal
+ * layer it does something resembling a name change, so emit the
+ * "name-changed" signal
+ */
+ gimp_object_name_changed (GIMP_OBJECT (floating_layer));
+
+ gimp_drawable_update (GIMP_DRAWABLE (floating_layer),
+ 0, 0,
+ gimp_item_get_width (GIMP_ITEM (floating_layer)),
+ gimp_item_get_height (GIMP_ITEM (floating_layer)));
+ break;
+
+ default:
+ g_return_if_reached ();
+ }
+}