Bug 122177 Add input for IntervalBase to Group Editor
BIRT model's group definition has one important property: IntervalBase (see GroupHandle.setIntervalBase). This property controls how interval-based grouping picks the range of its initial group, and is an important part of range-based grouping. BIRT designer's Group Details editor should allow user to edit IntervalBase for a group. This is how the editor should work: * IntervalBase options should be presented only if "Interval" is not "None". (Since IntervalBase only makes sense for interval-based grouping) * IntervalBase should be presented in conjunction with checkbox. When it is unchecked (maps to a NULL IntervalBase value), Data Engine dynamically picks a base value using the first group key value in the result set. When it is checked, the user should input a base value. The following is a suggested look of the UI control: [ ] Use fixed base value for interval: _______________ ( [] is a checkbox, underline ___ is a textbox ).
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/GroupDialog.java
public void setInput( Object input )
	{
		Assert.isTrue( input instanceof GroupHandle );
		inputGroup = (GroupHandle) input;
	}
	/**
	 * Sets the dataset list to use.
	 * 
	 * @param dataSetList
	 */
	public void setDataSetList( List dataSetList )
	{
		this.dataSetList = dataSetList;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.dialogs.Dialog#okPressed()
	 */
	protected void okPressed( )
	{
		try
		{
			inputGroup.setName( nameEditor.getText( ) );
			String newToc = UIUtil.convertToModelString( tocEditor.getText( ),
					true );
			if ( newToc != inputGroup.getTocExpression( ) )
			{
				if ( newToc == null
						|| !newToc.equals( inputGroup.getTocExpression( ) ) )