[Bf-extensions-cvs] [edd893f] master: Node Wrangler: Some more checks for Save This Image

[Greg]

Commit: edd893fef8f9e2b5096e9f54a1664c7a6d171515
Author: Greg
Date:   Thu Aug 11 12:44:17 2016 +0200
Branches: master
https://developer.blender.org/rBAedd893fef8f9e2b5096e9f54a1664c7a6d171515

Node Wrangler: Some more checks for Save This Image

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M	node_wrangler.py

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diff --git a/node_wrangler.py b/node_wrangler.py
index b6a7b43..6b06595 100644
--- a/node_wrangler.py
+++ b/node_wrangler.py
@@ -3192,7 +3192,13 @@ class NWSaveViewer(bpy.types.Operator, ExportHelper):
 
     @classmethod
     def poll(cls, context):
-        return nw_check(context) and context.space_data.tree_type == 'CompositorNodeTree' and "Viewer Node" in [i.name for i in bpy.data.images]
+        valid = False
+        if nw_check(context):
+            if context.space_data.tree_type == 'CompositorNodeTree':
+                if "Viewer Node" in [i.name for i in bpy.data.images]:
+                    if sum(bpy.data.images["Viewer Node"].size) > 0:  # False if not connected or connected but no image
+                        valid = True
+        return valid
 
     def execute(self, context):
         fp = self.filepath