Bug 5449 TVT Text Expansion/Truncations in new java class dialog
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/dialogfields/ListDialogField.java
/*
	 * @see DialogField#doFillIntoGrid
	 */
	public Control[] doFillIntoGrid(Composite parent, int nColumns) {
		assertEnoughColumns(nColumns);
		
		Label label= getLabelControl(parent);
		MGridData gd= gridDataForLabel(1);
		gd.verticalAlignment= gd.BEGINNING;
		label.setLayoutData(gd);
		
		Control list= getListControl(parent);
		gd= new MGridData();
		gd.horizontalAlignment= gd.FILL;
		gd.grabExcessHorizontalSpace= true;
		gd.verticalAlignment= gd.FILL;
		gd.grabExcessVerticalSpace= true;
		gd.grabColumn= 0;
		gd.horizontalSpan= nColumns - 2;
		gd.widthHint= SWTUtil.convertWidthInCharsToPixels(40, list);
		gd.heightHint= SWTUtil.convertHeightInCharsToPixels(15, list);
		list.setLayoutData(gd);
		
		Composite buttons= getButtonBox(parent);
		gd= new MGridData();
		gd.horizontalAlignment= gd.FILL;
		gd.grabExcessHorizontalSpace= false;
		gd.verticalAlignment= gd.FILL;
		gd.grabExcessVerticalSpace= false;
		gd.horizontalSpan= 1;