Bug 209154 Enhance Report Model to support view property
The goal of this enhancement is to support a chart view property on crosstab or table report items. The view should follow the several rules: - The view automatically shares its binding with the host item, they can't be modified. - The view can be retrieved through the API only by querying it from the host item, through a getView() method. It is not accessible directly by id - A property should be available to control whether the host or view should be displayed (default is host item). If possible, this should be controllable using report parameters. - The model should return the visibile view to the report engine to ensure that there is no impact on engine code to support this new view. - The host/view combination is a single report item with a unique id Since the chart is an extended item, the model can provide additional properties to indicate which item can be view, and which item can be a host. For 2.3, only table and crosstab can be hosts, and only chart can be a view.
xtab/org.eclipse.birt.report.item.crosstab.core/src/org/eclipse/birt/report/item/crosstab/core/de/CrosstabReportItemHandle.java
}
		throw new CrosstabException( this.getModelHandle( ).getElement( ),
				Messages.getString( "CrosstabReportItemHandle.error.locate.column.cell" ) ); 
	}
	/**
	 * Sets the row height where the cell resides.
	 * 
	 * @param cell
	 * @param value
	 * @throws CrosstabException
	 */
	public void setRowHeight( CrosstabCellHandle cell, DimensionValue value )
			throws CrosstabException
	{
		cell = CrosstabModelUtil.locateRowHeightCell( this, cell );
		if ( cell != null )
		{
			try
			{
				cell.getHeight( ).setValue( value );
			}
			catch ( SemanticException e )
			{
				throw new CrosstabException( this.getModelHandle( )
						.getElement( ),
						Messages.getString( "CrosstabReportItemHandle.error.set.row.height" ), 
						e );
			}
		}
		else