Bug 164070 Support widows/orphans properties on text item
Support widows/orphans properties on block text item(label, text, data etc), About the definition of widows/orphans, please refer to CSS spec.
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/api/DesignElementHandleTest.java
* <li>
	 * {@link org.eclipse.birt.report.model.api.DesignElementHandle#clientsIterator()}
	 * <li>
	 * {@link org.eclipse.birt.report.model.api.DesignElementHandle#derivedIterator()}
	 * </ul>
	 * 
	 * @throws Exception
	 */
	public void testStyle( ) throws Exception
	{
		
		DesignElementHandle handle = designHandle.findElement( "bodyLabel1" ); 
		SharedStyleHandle styleHandle = handle.getStyle( );
		assertNotNull( styleHandle );
		PrivateStyleHandle privateStyleHandle = (PrivateStyleHandle) handle
				.getPrivateStyle( );
		assertNotNull( privateStyleHandle );
		assertEquals( "bodyLabel1", privateStyleHandle.getName( ) ); 
		assertEquals( "Style1", styleHandle.getName( ) ); 
		
		handle = designHandle.findElement( "bodyLabel2" ); 
		styleHandle = handle.getStyle( );
		assertNull( styleHandle );
		privateStyleHandle = (PrivateStyleHandle) handle.getPrivateStyle( );
		assertNotNull( privateStyleHandle );
		assertEquals( "bodyLabel2", privateStyleHandle.getName( ) ); 
		
		handle = designHandle.findElement( "bodyLabel3" ); 
		styleHandle = handle.getStyle( );
		assertNull( styleHandle );