GPencil: Object data UI updates

Some tweaks for the Grease Pencil object data UI:
- Update main layers controls for consistency (Opacity, Blend mode).
- Move "Show only On Keyframed" checkbox to Display section.
- Change "Duplicate Layer" icon in Layer menu.

{F7695928}

Reviewers: antoniov, pepeland, billreynish

Reviewed By: billreynish

Tags: #bf_blender, #grease_pencil

Differential Revision: https://developer.blender.org/D5571

release/scripts/startup/bl_ui/properties_data_gpencil.py

@@ -84,7 +84,7 @@ class GPENCIL_MT_layer_context_menu(Menu):
         ob = context.object
         gpd = ob.data
 
-        layout.operator("gpencil.layer_duplicate", icon='ADD')  # XXX: needs a dedicated icon
+        layout.operator("gpencil.layer_duplicate", icon='DUPLICATE')
 
         layout.separator()
 
@@ -123,29 +123,16 @@ class DATA_PT_gpencil_layers(DataButtonsPanel, Panel):
 
     def draw_layers(self, _context, layout, gpd):
 
-        row = layout.row()
+        gpl = gpd.layers.active
 
-        col = row.column()
+        row = layout.row()
         layer_rows = 7
+        
+        col = row.column()
         col.template_list("GPENCIL_UL_layer", "", gpd, "layers", gpd.layers, "active_index",
                           rows=layer_rows, sort_reverse=True, sort_lock=True)
 
-        gpl = gpd.layers.active
-
-        if gpl:
-            srow = col.row(align=True)
-            srow.prop(gpl, "blend_mode", text="Blend")
-
-            srow = col.row(align=True)
-            srow.prop(gpl, "opacity", text="Opacity", slider=True)
-            srow.prop(gpl, "mask_layer", text="",
-                      icon='MOD_MASK' if gpl.mask_layer else 'LAYER_ACTIVE')
-
-            srow = col.row(align=True)
-            srow.prop(gpl, "use_solo_mode", text="Show Only On Keyframed")
-
         col = row.column()
-
         sub = col.column(align=True)
         sub.operator("gpencil.layer_add", icon='ADD', text="")
         sub.operator("gpencil.layer_remove", icon='REMOVE', text="")
@@ -165,7 +152,23 @@ class DATA_PT_gpencil_layers(DataButtonsPanel, Panel):
                 sub = col.column(align=True)
                 sub.operator("gpencil.layer_isolate", icon='LOCKED', text="").affect_visibility = False
                 sub.operator("gpencil.layer_isolate", icon='RESTRICT_VIEW_ON', text="").affect_visibility = True
+        
+        # Layer main properties
+        row = layout.row()        
+        col = layout.column(align=True)
 
+        if gpl:
+            
+            layout = self.layout
+            layout.use_property_split = True
+            layout.use_property_decorate = True
+            col = layout.column(align=True)
+
+            col = layout.row(align=True)
+            col.prop(gpl, "blend_mode", text="Blend")
+
+            col = layout.row(align=True)
+            col.prop(gpl, "opacity", text="Opacity", slider=True)
 
 class DATA_PT_gpencil_layer_adjustments(LayerDataButtonsPanel, Panel):
     bl_label = "Adjustments"
@@ -201,7 +204,6 @@ class DATA_PT_gpencil_layer_adjustments(LayerDataButtonsPanel, Panel):
         col = layout.row(align=True)
         col.prop(gpl, "lock_material")
 
-
 class DATA_PT_gpencil_layer_relations(LayerDataButtonsPanel, Panel):
     bl_label = "Relations"
     bl_parent_id = 'DATA_PT_gpencil_layers'
@@ -241,6 +243,8 @@ class DATA_PT_gpencil_layer_display(LayerDataButtonsPanel, Panel):
         col = layout.row(align=True)
         col.prop(gpl, "channel_color")
 
+        col = layout.row(align=True)
+        col.prop(gpl, "use_solo_mode", text="Show Only On Keyframed")
 
 class DATA_PT_gpencil_onion_skinning(DataButtonsPanel, Panel):
     bl_label = "Onion Skinning"