1 files changed, 99 insertions, 0 deletions
diff --git a/app/display/gimptooltransformgrid.h b/app/display/gimptooltransformgrid.h
new file mode 100644
index 0000000..949beb2
--- /dev/null
+++ b/app/display/gimptooltransformgrid.h
@@ -0,0 +1,99 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimptooltransformgrid.h
+ * Copyright (C) 2017 Michael Natterer <mitch@gimp.org>
+ *
+ * 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_TOOL_TRANSFORM_GRID_H__
+#define __GIMP_TOOL_TRANSFORM_GRID_H__
+
+
+#include "gimpcanvashandle.h"
+#include "gimptoolwidget.h"
+
+
+#define GIMP_TOOL_TRANSFORM_GRID_MAX_HANDLE_SIZE \
+  (1.5 * GIMP_CANVAS_HANDLE_SIZE_LARGE)
+
+
+typedef enum
+{
+  GIMP_TRANSFORM_HANDLE_NONE,
+  GIMP_TRANSFORM_HANDLE_NW_P,     /* north west perspective         */
+  GIMP_TRANSFORM_HANDLE_NE_P,     /* north east perspective         */
+  GIMP_TRANSFORM_HANDLE_SW_P,     /* south west perspective         */
+  GIMP_TRANSFORM_HANDLE_SE_P,     /* south east perspective         */
+  GIMP_TRANSFORM_HANDLE_NW,       /* north west                     */
+  GIMP_TRANSFORM_HANDLE_NE,       /* north east                     */
+  GIMP_TRANSFORM_HANDLE_SW,       /* south west                     */
+  GIMP_TRANSFORM_HANDLE_SE,       /* south east                     */
+  GIMP_TRANSFORM_HANDLE_N,        /* north                          */
+  GIMP_TRANSFORM_HANDLE_S,        /* south                          */
+  GIMP_TRANSFORM_HANDLE_E,        /* east                           */
+  GIMP_TRANSFORM_HANDLE_W,        /* west                           */
+  GIMP_TRANSFORM_HANDLE_CENTER,   /* center for moving              */
+  GIMP_TRANSFORM_HANDLE_PIVOT,    /* pivot for rotation and scaling */
+  GIMP_TRANSFORM_HANDLE_N_S,      /* north shearing                 */
+  GIMP_TRANSFORM_HANDLE_S_S,      /* south shearing                 */
+  GIMP_TRANSFORM_HANDLE_E_S,      /* east shearing                  */
+  GIMP_TRANSFORM_HANDLE_W_S,      /* west shearing                  */
+  GIMP_TRANSFORM_HANDLE_ROTATION, /* rotation                       */
+
+  GIMP_N_TRANSFORM_HANDLES /* keep this last so *handles[] is the right size */
+} GimpTransformHandle;
+
+
+#define GIMP_TYPE_TOOL_TRANSFORM_GRID            (gimp_tool_transform_grid_get_type ())
+#define GIMP_TOOL_TRANSFORM_GRID(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_TOOL_TRANSFORM_GRID, GimpToolTransformGrid))
+#define GIMP_TOOL_TRANSFORM_GRID_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_TOOL_TRANSFORM_GRID, GimpToolTransformGridClass))
+#define GIMP_IS_TOOL_TRANSFORM_GRID(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_TOOL_TRANSFORM_GRID))
+#define GIMP_IS_TOOL_TRANSFORM_GRID_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_TOOL_TRANSFORM_GRID))
+#define GIMP_TOOL_TRANSFORM_GRID_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_TOOL_TRANSFORM_GRID, GimpToolTransformGridClass))
+
+
+typedef struct _GimpToolTransformGrid        GimpToolTransformGrid;
+typedef struct _GimpToolTransformGridPrivate GimpToolTransformGridPrivate;
+typedef struct _GimpToolTransformGridClass   GimpToolTransformGridClass;
+
+struct _GimpToolTransformGrid
+{
+  GimpToolWidget                parent_instance;
+
+  GimpToolTransformGridPrivate *private;
+};
+
+struct _GimpToolTransformGridClass
+{
+  GimpToolWidgetClass  parent_class;
+};
+
+
+GType                 gimp_tool_transform_grid_get_type   (void) G_GNUC_CONST;
+
+GimpToolWidget      * gimp_tool_transform_grid_new        (GimpDisplayShell      *shell,
+                                                           const GimpMatrix3     *transform,
+                                                           gdouble                x1,
+                                                           gdouble                y1,
+                                                           gdouble                x2,
+                                                           gdouble                y2);
+
+/*  protected functions  */
+
+GimpTransformHandle   gimp_tool_transform_grid_get_handle (GimpToolTransformGrid *grid);
+
+
+#endif /* __GIMP_TOOL_TRANSFORM_GRID_H__ */