Bug 195083 Background color should cover the whole data item in xtab.[1102][1200]
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/emitter/PageDeviceRender.java
* border of textArea/imageArea this method draws the border and background
	 * of the given container.
	 * 
	 * @param container
	 *            the ContainerArea specified from layout
	 */
	protected void startContainer( IContainerArea container )
	{
		if ( container instanceof PageArea )
		{
			scale = container.getScale( );
			hTextSpace = (int) ( H_TEXT_SPACE * scale );
			vTextSpace = (int) ( V_TEXT_SPACE * scale );
			newPage( container );
			containerStack.push( new ContainerPosition( 0, 0 ) );
		}
		else
		{
			if ( needClip( container ) )
			{
				pageGraphic.clipSave( );
				clip( container );
			}
			drawContainer( container );
			ContainerPosition pos;
			if ( !containerStack.isEmpty( ) )
			{
				pos = (ContainerPosition) containerStack.peek( );
				ContainerPosition current = new ContainerPosition( pos.x
						+ getX( container ), pos.y + getY( container ) );