UI: Use property split layout and decorators for material properties

Use the automatic property split layout (hence, change to the new 40/60% split
ratio) and add decorator buttons for animatable properties.
This actually applies to all node input buttons in the properties, e.g. world shading,
light shading, texture nodes.

Doing this makes the layout more consistent with other layouts in the
properties. But the decorators are also a useful hint for users that these
options can be animated. Previously using decorators and the automatic split
layout wasn't possible, I've done a number of changes now to have it supported.
Before I moved the socket icons to the left side, the decorators also looked
weird (two circle icons next to each other).

{F8497704} With nested items: {F8497708}

Reviewed By: William Reynish, Pablo Vazquez

Differential Revision: https://developer.blender.org/D7544

1 files changed, 12 insertions, 0 deletions

diff --git a/intern/cycles/blender/addon/ui.py b/intern/cycles/blender/addon/ui.py
index 9c125f7fc9e..08641c05941 100644
--- a/intern/cycles/blender/addon/ui.py
+++ b/intern/cycles/blender/addon/ui.py
@@ -1410,6 +1410,8 @@ class CYCLES_LIGHT_PT_nodes(CyclesButtonsPanel, Panel):
     def draw(self, context):
         layout = self.layout
 
+        layout.use_property_split = True
+
         light = context.light
         panel_node_draw(layout, light, 'OUTPUT_LIGHT', 'Surface')
 
@@ -1459,6 +1461,8 @@ class CYCLES_WORLD_PT_surface(CyclesButtonsPanel, Panel):
     def draw(self, context):
         layout = self.layout
 
+        layout.use_property_split = True
+
         world = context.world
 
         if not panel_node_draw(layout, world, 'OUTPUT_WORLD', 'Surface'):
@@ -1478,6 +1482,8 @@ class CYCLES_WORLD_PT_volume(CyclesButtonsPanel, Panel):
     def draw(self, context):
         layout = self.layout
 
+        layout.use_property_split = True
+
         world = context.world
         panel_node_draw(layout, world, 'OUTPUT_WORLD', 'Volume')
 
@@ -1665,6 +1671,8 @@ class CYCLES_MATERIAL_PT_surface(CyclesButtonsPanel, Panel):
     def draw(self, context):
         layout = self.layout
 
+        layout.use_property_split = True
+
         mat = context.material
         if not panel_node_draw(layout, mat, 'OUTPUT_MATERIAL', 'Surface'):
             layout.prop(mat, "diffuse_color")
@@ -1683,6 +1691,8 @@ class CYCLES_MATERIAL_PT_volume(CyclesButtonsPanel, Panel):
     def draw(self, context):
         layout = self.layout
 
+        layout.use_property_split = True
+
         mat = context.material
         # cmat = mat.cycles
 
@@ -1701,6 +1711,8 @@ class CYCLES_MATERIAL_PT_displacement(CyclesButtonsPanel, Panel):
     def draw(self, context):
         layout = self.layout
 
+        layout.use_property_split = True
+
         mat = context.material
         panel_node_draw(layout, mat, 'OUTPUT_MATERIAL', 'Displacement')