Bug 123368 [SPM-Linux WS]Height of item area can't revert
Details: Height of item area can't revert Setp: 1.Insert a label and input some words. 2.Modify the label size to 10cm. 3.Undo that or set it to 10point. Actual result: 10cm is bigger than 10point, when I undo it, words is revert to 10point, but the area of the label can't revert.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/schematic/figures/LabelFigure.java
flowPage.add( label );
		setLayoutManager( new StackLayout( ) );
		add( flowPage );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.draw2d.IFigure#getPreferredSize(int, int)
	 */
	public Dimension getPreferredSize( int wHint, int hHint )
	{
		Dimension dim = super.getPreferredSize( wHint, hHint );
		int rx = recommendSize != null ? recommendSize.width : 0;
		int ry = recommendSize != null ? recommendSize.height : 0;
		if ( DesignChoiceConstants.DISPLAY_BLOCK.equals( display ) )
		{
			return new Dimension( dim.width, Math.max( dim.height, ry ) );
		}
		if ( DesignChoiceConstants.DISPLAY_INLINE.equals( display ) )
		{
			return new Dimension( Math.max( dim.width, rx ),
					Math.max( dim.height, ry ) );
		}
		return dim;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.draw2d.Figure#getMinimumSize(int, int)
	 */