UI: split left/right header buttons

- Added flexible separators to
  Clip, Graph, Dopesheet, Image, Node, Timeline, 3D View.
- Added graying out for Proportional Editing
  menus to avoid popping when right-aligned.
- Slightly re-arranged some controls,
  so they can be on correct side of the separators.

Patch by @billreynish

1 files changed, 10 insertions, 7 deletions

diff --git a/release/scripts/startup/bl_ui/space_clip.py b/release/scripts/startup/bl_ui/space_clip.py
index 40009090231..db2a54d6138 100644
--- a/release/scripts/startup/bl_ui/space_clip.py
+++ b/release/scripts/startup/bl_ui/space_clip.py
@@ -57,15 +57,17 @@ class CLIP_HT_header(Header):
         sc = context.space_data
         clip = sc.clip
 
-        CLIP_MT_tracking_editor_menus.draw_collapsible(context, layout)
-
         row = layout.row()
         row.template_ID(sc, "clip", open="clip.open")
 
+        CLIP_MT_tracking_editor_menus.draw_collapsible(context, layout)
+
         if clip:
             tracking = clip.tracking
             active_object = tracking.objects.active
 
+            layout.separator_spacer()
+
             if sc.view == 'CLIP':
                 layout.prop(sc, "pivot_point", text="", icon_only=True)
 
@@ -122,14 +124,15 @@ class CLIP_HT_header(Header):
             row = layout.row()
             row.template_ID(sc, "mask", new="mask.new")
 
+            layout.separator_spacer()
+
             layout.prop(sc, "pivot_point", text="", icon_only=True)
 
             row = layout.row(align=True)
-            row.prop(toolsettings, "use_proportional_edit_mask",
-                     text="", icon_only=True)
-            if toolsettings.use_proportional_edit_mask:
-                row.prop(toolsettings, "proportional_edit_falloff",
-                         text="", icon_only=True)
+            row.prop(toolsettings, "use_proportional_edit_mask", text="", icon_only=True)
+            sub = row.row(align=True)
+            sub.active = toolsettings.use_proportional_edit_mask
+            sub.prop(toolsettings, "proportional_edit_falloff", text="", icon_only=True)
 
     def draw(self, context):
         layout = self.layout