User preferences: Use checkbox for Cycles device selection

It was totally unclear whether the device is enabled or disabled.
Lots of people got fully lost in the current interface.

While the solution is not fully ideal, it is at least solves
ambiguity in the interface.

1 files changed, 4 insertions, 4 deletions

diff --git a/intern/cycles/blender/addon/properties.py b/intern/cycles/blender/addon/properties.py
index cbf469b3a89..e6d2a0b85b3 100644
--- a/intern/cycles/blender/addon/properties.py
+++ b/intern/cycles/blender/addon/properties.py
@@ -1297,14 +1297,14 @@ class CyclesPreferences(bpy.types.AddonPreferences):
         row = layout.row()
 
         if self.compute_device_type == 'CUDA' and cuda_devices:
-            col = row.column(align=True)
+            box = row.box()
             for device in cuda_devices:
-                col.prop(device, "use", text=device.name, toggle=True)
+                box.prop(device, "use", text=device.name)
 
         if self.compute_device_type == 'OPENCL' and opencl_devices:
-            col = row.column(align=True)
+            box = row.box()
             for device in opencl_devices:
-                col.prop(device, "use", text=device.name, toggle=True)
+                box.prop(device, "use", text=device.name)
 
 
     def draw(self, context):