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#  
#  Copyright (c) 2012, John Haddon. All rights reserved.
#  Copyright (c) 2013, Image Engine Design Inc. All rights reserved.
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import unittest

import IECore

import Gaffer
import GafferUI
import GafferTest

class PlugValueWidgetTest( unittest.TestCase ) :

	def testContext( self ) :
	
		s = Gaffer.ScriptNode()
		s["m"] = GafferTest.MultiplyNode()
		s["e"] = Gaffer.Expression()
		s["e"]["engine"].setValue( "python" )
		s["e"]["expression"].setValue( "parent[\"m\"][\"op1\"] = int( context[\"frame\"] )" )
		
		w = GafferUI.NumericPlugValueWidget( s["m"]["op1"] )
		self.failUnless( w.getContext().isSame( s.context() ) )
		
		s.context().setFrame( 10 )
		self.assertEqual( w.numericWidget().getValue(), 10 )
		
		context = Gaffer.Context()
		context.setFrame( 20 )
		w.setContext( context )
		self.failUnless( w.getContext().isSame( context ) )
		self.assertEqual( w.numericWidget().getValue(), 20 )
	
	def testDisableCreationForSpecificTypes( self ) :
	
		class ValueWidgetTestPlug( Gaffer.CompoundPlug ) :
		
			def __init__( self, name="TestPlug", direction=Gaffer.Plug.Direction.In, flags=Gaffer.Plug.Flags.Default ) :
			
				Gaffer.CompoundPlug.__init__( self, name, direction, flags )
		
		IECore.registerRunTimeTyped( ValueWidgetTestPlug )
		
		n = Gaffer.Node()
		n["p"] = ValueWidgetTestPlug()
		
		w = GafferUI.PlugValueWidget.create( n["p"] )
		self.assertTrue( isinstance( w, GafferUI.CompoundPlugValueWidget ) )
		
		GafferUI.PlugValueWidget.registerType( ValueWidgetTestPlug.staticTypeId(), None )
		
		w = GafferUI.PlugValueWidget.create( n["p"] )
		self.assertEqual( w, None )
		
if __name__ == "__main__":
	unittest.main()
	
