NLA SoC: Attempt at solving the jumping-views problem

The 'jumping-views' problem affected the NLA and DopeSheet editors, whereby the channels-list and the data-area would get out of sync (vertically) due to the size calculations of the two being done differently.

2 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/editors/space_action/action_draw.c b/source/blender/editors/space_action/action_draw.c
index 93d061e8bf3..2fd5b9bbd93 100644
--- a/source/blender/editors/space_action/action_draw.c
+++ b/source/blender/editors/space_action/action_draw.c
@@ -422,6 +422,8 @@ void draw_channel_names(bAnimContext *ac, SpaceAction *saction, ARegion *ar)
 		 */
 		v2d->tot.ymin= (float)(-height);
 	}
+	/* need to do a view-sync here, so that the keys area doesn't jump around */
+	UI_view2d_sync(NULL, ac->sa, v2d, V2D_VIEWSYNC_AREA_VERTICAL);
 	
 	/* loop through channels, and set up drawing depending on their type  */	
 	y= (float)ACHANNEL_FIRST;
diff --git a/source/blender/editors/space_nla/nla_draw.c b/source/blender/editors/space_nla/nla_draw.c
index 6219acf6fae..7fb15c62277 100644
--- a/source/blender/editors/space_nla/nla_draw.c
+++ b/source/blender/editors/space_nla/nla_draw.c
@@ -512,6 +512,8 @@ void draw_nla_main_data (bAnimContext *ac, SpaceNla *snla, ARegion *ar)
 	 * (NOTE: this is ok here, the configuration is pretty straightforward) 
 	 */
 	v2d->tot.ymin= (float)(-height);
+	/* need to do a view-sync here, so that the strips area doesn't jump around */
+	UI_view2d_sync(NULL, ac->sa, v2d, V2D_VIEWSYNC_AREA_VERTICAL);
 	
 	/* loop through channels, and set up drawing depending on their type  */	
 	y= (float)(-NLACHANNEL_HEIGHT);