Bug 195951 Focus for PNG does not work [13]
Description: Focus for PNG does not work. Build number: 2.2.0.v20070710-1223 Steps to reproduce: 1. New a Chart, set Output Format as PNG, in "Format Chart" tab, add interactivity for Value Series, Event: Focus, Action: Hyperlink or invoke script. 2. Preview, focus in Value Series. Expected result: Interactivity works. Actual result: It does not work. Error log: N/A
chart/org.eclipse.birt.chart.device.extension/src/org/eclipse/birt/chart/device/image/JavaxImageIOWriter.java
_img = new BufferedImage( (int) _bo.getWidth( ),
					(int) _bo.getHeight( ),
					getImageType( ) );
		}
		super.setProperty( IDeviceRenderer.GRAPHICS_CONTEXT, _img.getGraphics( ) );
		if ( !supportsTransparency( ) )
		{
			
			_g2d.setPaint( Color.WHITE );
			_g2d.fillRect( 0, 0, _img.getWidth( null ), _img.getHeight( null ) );
		}
		
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.device.IDeviceRenderer#after()
	 */
	public void after( ) throws ChartException
	{
		super.after( );
		if ( _oOutputIdentifier != null )
		{
			
			Iterator it = null;
			String s = getFormat( );
			if ( s != null )
			{
				it = ImageIO.getImageWritersByFormatName( s );
				if ( !it.hasNext( ) )