Bug 149617 Support Content-type-based editor lookup
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/ReportPlugin.java
*            added to
	 */
	private void appendDefaultPreference( String defaultName,
			StringBuffer preference )
	{
		if ( defaultName.equals( ReportDesignConstants.DATA_ITEM ) )
		{
			preference.append( Messages.getString( "DesignerPaletteFactory.toolTip.dataReportItem" ) ); 
		}
		else if ( defaultName.equals( ReportDesignConstants.GRID_ITEM ) )
		{
			preference.append( Messages.getString( "DesignerPaletteFactory.toolTip.gridReportItem" ) ); 
		}
		else if ( defaultName.equals( ReportDesignConstants.IMAGE_ITEM ) )
		{
			preference.append( Messages.getString( "DesignerPaletteFactory.toolTip.imageReportItem" ) ); 
		}
		else if ( defaultName.equals( ReportDesignConstants.LABEL_ITEM ) )
		{
			preference.append( Messages.getString( "DesignerPaletteFactory.toolTip.labelReportItem" ) ); 
		}
		else if ( defaultName.equals( ReportDesignConstants.LIST_ITEM ) )
		{
			preference.append( Messages.getString( "DesignerPaletteFactory.toolTip.listReportItem" ) ); 
		}
		else if ( defaultName.equals( ReportDesignConstants.TABLE_ITEM ) )
		{
			preference.append( Messages.getString( "DesignerPaletteFactory.toolTip.tableReportItem" ) ); 
		}
		else if ( defaultName.equals( ReportDesignConstants.TEXT_ITEM ) )