1 files changed, 54 insertions, 0 deletions
diff --git a/app/core/gimpchannelundo.h b/app/core/gimpchannelundo.h
new file mode 100644
index 0000000..7bfceb9
--- /dev/null
+++ b/app/core/gimpchannelundo.h
@@ -0,0 +1,54 @@
+/* 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/>.
+ */
+
+#ifndef __GIMP_CHANNEL_UNDO_H__
+#define __GIMP_CHANNEL_UNDO_H__
+
+
+#include "gimpitemundo.h"
+
+
+#define GIMP_TYPE_CHANNEL_UNDO            (gimp_channel_undo_get_type ())
+#define GIMP_CHANNEL_UNDO(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_CHANNEL_UNDO, GimpChannelUndo))
+#define GIMP_CHANNEL_UNDO_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_CHANNEL_UNDO, GimpChannelUndoClass))
+#define GIMP_IS_CHANNEL_UNDO(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_CHANNEL_UNDO))
+#define GIMP_IS_CHANNEL_UNDO_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_CHANNEL_UNDO))
+#define GIMP_CHANNEL_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_CHANNEL_UNDO, GimpChannelUndoClass))
+
+
+typedef struct _GimpChannelUndo      GimpChannelUndo;
+typedef struct _GimpChannelUndoClass GimpChannelUndoClass;
+
+struct _GimpChannelUndo
+{
+  GimpItemUndo  parent_instance;
+
+  GimpChannel  *prev_parent;
+  gint          prev_position;   /*  former position in list  */
+  GimpChannel  *prev_channel;    /*  previous active channel  */
+};
+
+struct _GimpChannelUndoClass
+{
+  GimpItemUndoClass  parent_class;
+};
+
+
+GType   gimp_channel_undo_get_type (void) G_GNUC_CONST;
+
+
+#endif /* __GIMP_CHANNEL_UNDO_H__ */