Fix T72897: Move Channels operator moves Grease Pencil Layers wrongly

This operator was pending of fix.

1 files changed, 20 insertions, 1 deletions

diff --git a/source/blender/editors/animation/anim_channels_edit.c b/source/blender/editors/animation/anim_channels_edit.c
index b7ed20d9ec5..35c743a3af3 100644
--- a/source/blender/editors/animation/anim_channels_edit.c
+++ b/source/blender/editors/animation/anim_channels_edit.c
@@ -898,6 +898,23 @@ static AnimChanRearrangeFp rearrange_get_mode_func(eRearrangeAnimChan_Mode mode)
   }
 }
 
+/* get rearranging function, given 'rearrange' mode (grease pencil is inverted) */
+static AnimChanRearrangeFp rearrange_gpencil_get_mode_func(eRearrangeAnimChan_Mode mode)
+{
+  switch (mode) {
+    case REARRANGE_ANIMCHAN_TOP:
+      return rearrange_island_bottom;
+    case REARRANGE_ANIMCHAN_UP:
+      return rearrange_island_down;
+    case REARRANGE_ANIMCHAN_DOWN:
+      return rearrange_island_up;
+    case REARRANGE_ANIMCHAN_BOTTOM:
+      return rearrange_island_top;
+    default:
+      return NULL;
+  }
+}
+
 /* Rearrange Islands Generics ------------------------------------- */
 
 /* add channel into list of islands */
@@ -1331,7 +1348,7 @@ static void rearrange_gpencil_channels(bAnimContext *ac, eRearrangeAnimChan_Mode
   int filter;
 
   /* get rearranging function */
-  AnimChanRearrangeFp rearrange_func = rearrange_get_mode_func(mode);
+  AnimChanRearrangeFp rearrange_func = rearrange_gpencil_get_mode_func(mode);
 
   if (rearrange_func == NULL) {
     return;
@@ -1364,6 +1381,8 @@ static void rearrange_gpencil_channels(bAnimContext *ac, eRearrangeAnimChan_Mode
 
   /* free GPD channel data */
   ANIM_animdata_freelist(&anim_data);
+
+  WM_main_add_notifier(NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 }
 
 /* ------------------- */