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import unittest

import IECore

import Gaffer
import GafferUITest
import GafferImage
import GafferImageUI

class ImageGadgetTest( GafferUITest.TestCase ) :

	def testBound( self ) :

		g = GafferImageUI.ImageGadget()
		self.assertEqual( g.bound(), IECore.Box3f() )

		c = GafferImage.Constant()
		c["format"].setValue( GafferImage.Format( 200, 100 ) )

		g.setImage( c["out"] )
		self.assertEqual( g.bound(), IECore.Box3f( IECore.V3f( 0 ), IECore.V3f( 200, 100, 0) ) )

		c["format"].setValue( GafferImage.Format( 200, 100, 2 ) )
		self.assertEqual( g.bound(), IECore.Box3f( IECore.V3f( 0 ), IECore.V3f( 400, 100, 0) ) )

		c2 = GafferImage.Constant()
		g.setImage( c2["out"] )

		f = GafferImage.FormatPlug.getDefaultFormat( g.getContext() ).getDisplayWindow()
		self.assertEqual( g.bound(), IECore.Box3f( IECore.V3f( f.min.x, f.min.y, 0 ), IECore.V3f( f.max.x, f.max.y, 0 ) ) )

		GafferImage.FormatPlug.setDefaultFormat( g.getContext(), GafferImage.Format( IECore.Box2i( IECore.V2i( 10, 20 ), IECore.V2i( 30, 40 ) ) ) )
		self.assertEqual( g.bound(), IECore.Box3f( IECore.V3f( 10, 20, 0 ), IECore.V3f( 30, 40, 0 ) ) )

	def testGetImage( self ) :

		g = GafferImageUI.ImageGadget()
		self.assertEqual( g.getImage(), None )

		c = GafferImage.Constant()
		g.setImage( c["out"] )
		self.assertTrue( g.getImage().isSame( c["out"] ) )

if __name__ == "__main__":
	unittest.main()

