[Bf-blender-cvs] [21589dcbe01] blender2.8: Fix grease pencil weight invert

[Campbell Barton]

Commit: 21589dcbe01809de5c3bb4ec294a7dc3c3cf8c4e
Author: Campbell Barton
Date:   Mon Aug 27 14:19:08 2018 +1000
Branches: blender2.8
https://developer.blender.org/rB21589dcbe01809de5c3bb4ec294a7dc3c3cf8c4e

Fix grease pencil weight invert

Was always using first group.

===================================================================

M	source/blender/editors/gpencil/gpencil_data.c

===================================================================

diff --git a/source/blender/editors/gpencil/gpencil_data.c b/source/blender/editors/gpencil/gpencil_data.c
index 4084ed1c7ac..006e2679c8c 100644
--- a/source/blender/editors/gpencil/gpencil_data.c
+++ b/source/blender/editors/gpencil/gpencil_data.c
@@ -1683,14 +1683,15 @@ static int gpencil_vertex_group_invert_exec(bContext *C, wmOperator *UNUSED(op))
 	{
 		for (int i = 0; i < gps->totpoints; i++) {
 			dvert = &gps->dvert[i];
-			if (dvert->dw == NULL) {
-				BKE_gpencil_vgroup_add_point_weight(dvert, def_nr, 1.0f);
+			MDeformWeight *dw = defvert_find_index(dvert, def_nr);
+			if (dw == NULL) {
+				defvert_add_index_notest(dvert, def_nr, 1.0f);
 			}
-			else if (dvert->dw->weight == 1.0f) {
-				BKE_gpencil_vgroup_remove_point_weight(dvert, def_nr);
+			else if (dw->weight == 1.0f) {
+				defvert_remove_group(dvert, dw);
 			}
 			else {
-				dvert->dw->weight = 1.0f - dvert->dw->weight;
+				dw->weight = 1.0f - dw->weight;
 			}
 		}
 	}