Bug 122289 [Smoke][Regression][SPM-Linux WS]Item can't be dropped to layout from library
Details: Item can't be dropped to layout from library Setp: 1.New a library and insert a label 2.New a report design and use library 3.Drop label from library explorer to layout Actual results: Nothing is dropped into layout. Not only use library in outline, but also in library explorer is no effect. But when I drop the label without use library, it will use library and label can drop in it.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/util/UIUtil.java
* 
	 * @param wHint
	 *            the width hint
	 * @param c
	 *            the control
	 * 
	 * @return the width hint
	 */
	public static int getWidthHint( int wHint, Control c )
	{
		boolean wrap = isWrapControl( c );
		return wrap ? wHint : SWT.DEFAULT;
	}
	/**
	 * Returns the height hint for the given control.
	 * 
	 * @param hHint
	 *            the width hint
	 * @param c
	 *            the control
	 * 
	 * @return the height hint
	 */
	public static int getHeightHint( int hHint, Control c )
	{
		if ( c instanceof Composite )
		{
			Layout layout = ( (Composite) c ).getLayout( );
			if ( layout instanceof ColumnLayout )
				return hHint;