Bug 312859 The list of operator for Chart filter does not provide 30 visible items
chart/org.eclipse.birt.chart.reportitem.ui/src/org/eclipse/birt/chart/reportitem/ui/dialogs/ChartCubeFilterConditionBuilder.java
dummy.setLayoutData( gdata );
		return dummy;
	}
	/*
	 * Update handle for the Map Rule builder
	 */
	public void updateHandle( FilterConditionElementHandle handle, int handleCount )
	{
		this.inputHandle = handle;
	}
	/*
	 * Set design handle for the Map Rule builder
	 */
	private void setDesignHandle( DesignElementHandle handle )
	{
		this.designHandle = handle;
		setColumnList( this.designHandle );
	}
	
	public void setDesignHandle( DesignElementHandle handle,
			ChartWizardContext context )
	{
		setContext( context );
		setDesignHandle( handle );
	}
	protected IExpressionProvider expressionProvider;
	public void setDesignHandle( DesignElementHandle handle,
			IExpressionProvider provider )
	{
		setDesignHandle( handle );