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
ImageIO.setUseCache( false );
	}
	/**
	 * Updates the writer's parameters.
	 * 
	 * @param iwp
	 */
	protected void updateWriterParameters( ImageWriteParam iwp )
	{
		
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.device.IImageMapEmitter#getMimeType()
	 */
	public abstract String getMimeType( );
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.device.IImageMapEmitter#getImageMap()
	 */
	public String getImageMap( )
	{
		List saList = getShapeActions( );
		if ( saList == null || saList.size( ) == 0 )
		{
			return null;
		}