GPencil: New extrude operator

Keymap: E   - Extrude Gizmo supported.

If the extrude points are the first or last of the stroke, the stroke is extended.

If the extrude points are in the middle of the stroke, a new stroke is created because the grease pencil strokes can be only with 2 extremes and fold the stroke to get a new point gets very bad results.

Still pending define a new icon. Also, it could be good to set by default XYZ axis in the gizmo.

Note: There is a change in the transform_gizmo_extrude_3d.c gizmo for OB_MODE_EDIT_GPENCIL. This change must be undo when the mode will be integrated into OB_MODE_EDIT, but while we have both modes, we need to keep this code in order to keep running the gizmo.

1 files changed, 7 insertions, 1 deletions

diff --git a/source/blender/editors/transform/transform_gizmo_extrude_3d.c b/source/blender/editors/transform/transform_gizmo_extrude_3d.c
index b1ea7b87efb..81f4ec8c30a 100644
--- a/source/blender/editors/transform/transform_gizmo_extrude_3d.c
+++ b/source/blender/editors/transform/transform_gizmo_extrude_3d.c
@@ -147,7 +147,13 @@ static void gizmo_mesh_extrude_setup(const bContext *C, wmGizmoGroup *gzgroup)
 	{
 		const Object *obedit = CTX_data_edit_object(C);
 		const char *op_idname = NULL;
-		if (obedit->type == OB_MESH) {
+		/* grease pencil does not use obedit */
+		/* GPXX: Remove if OB_MODE_EDIT_GPENCIL is merged with OB_MODE_EDIT */
+		const Object *ob = CTX_data_active_object(C);
+		if ((ob) && (ob->type == OB_GPENCIL)) {
+			op_idname = "GPENCIL_OT_extrude_move";
+		}
+		else if (obedit->type == OB_MESH) {
 			op_idname = "MESH_OT_extrude_context_move";
 			ggd->normal_axis = 2;
 		}