SceneShapeUI::select returns false when polygons aren't being displayed in the viewport.

Apparently selectInfo.selectable() still returns true when meshes are not displayed by the M3dView, so we are also testing the objectDisplay status.
This was last confirmed in Maya 2014, and is presumably a Maya bug.

Author: andrewkaufman

src/IECoreMaya/SceneShapeUI.cpp

@@ -1,6 +1,6 @@
 //////////////////////////////////////////////////////////////////////////
 //
-//  Copyright (c) 2007-2013, Image Engine Design Inc. All rights reserved.
+//  Copyright (c) 2007-2015, Image Engine Design Inc. All rights reserved.
 //
 //  Redistribution and use in source and binary forms, with or without
 //  modification, are permitted provided that the following conditions are
@@ -559,7 +559,10 @@ bool SceneShapeUI::select( MSelectInfo &selectInfo, MSelectionList &selectionLis
 	if( selectInfo.displayStatus() != M3dView::kHilite )
 	{
 		MSelectionMask meshMask( MSelectionMask::kSelectMeshes );
-		if( !selectInfo.selectable( meshMask ) )
+		// Apparently selectInfo.selectable() still returns true when meshes are not
+		// displayed by the M3dView, so we are also testing the objectDisplay status.
+		// This was last confirmed in Maya 2014, and is presumably a Maya bug.
+		if( !selectInfo.selectable( meshMask ) || !selectInfo.objectDisplayStatus( M3dView::kDisplayMeshes ) )
 		{
 			return false;
 		}