Bug 212102 [Smoke] The chart is in distortion when preview [13]
Description: The chart is in distortion when preview. Build number: 2.2.2.v20071101-0630 Steps to reproduce: 1. New a report with a chart, preview. 2. Change the size of chart, preview. Expected result: Chart is previewed correctly. Actual result: The chart is in distortion when preview. Error log: N/A
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/presentation/LocalizedContentVisitor.java
imageObj.setImageMap( cachedImage.getImageMap( ) );
		imageObj.setAltText( content.getAltText( ) );
		imageObj.setAltTextKey( content.getAltTextKey( ) );
		processImage( imageObj );
		return imageObj;
	}
	/**
	 * handle an extended item.
	 * 
	 * @param content
	 *            the object.
	 */
	protected IContent processExtendedContent( IForeignContent content )
	{
		assert IForeignContent.EXTERNAL_TYPE.equals( content.getRawType( ) );
		assert content.getGenerateBy( ) instanceof ExtendedItemDesign;
		IContent generatedContent = content;
		
		ExtendedItemDesign design = (ExtendedItemDesign) content
				.getGenerateBy( );
		ExtendedItemHandle handle = (ExtendedItemHandle) design.getHandle( );
		String tagName = handle.getExtensionName( );
		
		if ( "Chart".equals( tagName ) )
		{
			IHTMLImageHandler imageHandler = context.getImageHandler( );
			if ( imageHandler != null )
			{
				String imageId = getImageCacheID( content );
				CachedImage cachedImage = imageHandler.getCachedImage( imageId,