Bug 183900 Image in preview pane will not show until you reopen the "Edit Image Item" dialogue [0001]
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ImageBuilder.java
catch ( SemanticException e )
		{
			ExceptionHandler.handle( e );
		}
		super.okPressed( );
	}
	/**
	 * Sets the model input.
	 * 
	 * @param input
	 */
	public void setInput( Object input )
	{
		Assert.isTrue( input instanceof ImageHandle );
		inputImage = (ImageHandle) input;
		if ( DesignChoiceConstants.IMAGE_REF_TYPE_NONE.equals( inputImage.getSource( ) ) )
		{
			setOKLabel( DLG_INSERT_BUTTON_MSG );
		}
	}
	protected boolean initDialog( )
	{
		if ( DesignChoiceConstants.IMAGE_REF_TYPE_EMBED.equals( inputImage.getSource( ) ) )
		{
			embedded.setSelection( true );
			switchTo( EMBEDDED_TYPE );
			initList( );
		}
		else if ( DesignChoiceConstants.IMAGE_REF_TYPE_EXPR.equals( inputImage.getSource( ) ) )
		{