New freehand curve drawing tool

- Access with Shift-LMB or from the 'Create' toolbar tab.
- Uses curve fitting for bezier curves, with error and corner angle options.
- Optional tablet pressure to curve radius mapping.
- Depth can use the cursor or optionally draw onto the surface,
  for the entire stroke or using the stroke start.
- Stroke plane can optionally be perpendicular to, or aligned to the surface normal.
- Optional radius tapering and for start/end points.
- Supports operator redo and calling from Python.

1 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/editors/curve/curve_ops.c b/source/blender/editors/curve/curve_ops.c
index 967187e66c9..d1994c8fc15 100644
--- a/source/blender/editors/curve/curve_ops.c
+++ b/source/blender/editors/curve/curve_ops.c
@@ -135,6 +135,7 @@ void ED_operatortypes_curve(void)
 	WM_operatortype_append(CURVE_OT_make_segment);
 	WM_operatortype_append(CURVE_OT_spin);
 	WM_operatortype_append(CURVE_OT_vertex_add);
+	WM_operatortype_append(CURVE_OT_draw);
 	WM_operatortype_append(CURVE_OT_extrude);
 	WM_operatortype_append(CURVE_OT_cyclic_toggle);
 
@@ -234,6 +235,9 @@ void ED_keymap_curve(wmKeyConfig *keyconf)
 
 	WM_keymap_add_item(keymap, "CURVE_OT_vertex_add", ACTIONMOUSE, KM_CLICK, KM_CTRL, 0);
 
+	kmi = WM_keymap_add_item(keymap, "CURVE_OT_draw", ACTIONMOUSE, KM_PRESS, KM_SHIFT, 0);
+	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+
 	kmi = WM_keymap_add_item(keymap, "CURVE_OT_select_all", AKEY, KM_PRESS, 0, 0);
 	RNA_enum_set(kmi->ptr, "action", SEL_TOGGLE);
 	kmi = WM_keymap_add_item(keymap, "CURVE_OT_select_all", IKEY, KM_PRESS, KM_CTRL, 0);