Bug 127005 Dynamic drill thru link to book mark
To create a drill thru link to a report document, user has to pre-create book marks in the target report today. But in many cases, the target report could be designed by a different report writer. And that report writer may not know what section of the report others want to link to. We shall not require the target report has pre-created book mark for other reports to link to it. We shall allow link to a report's TOC, and allow link to report based on report item ID + row id (col name, col value) For BIRT 2.1, we only need to add support of drill thru link to tarket report's TOC.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/HyperlinkBuilder.java
}
	private String getBasePath( )
	{
		String baseFile = SessionHandleAdapter.getInstance( )
				.getReportDesignHandle( ).getFileName( );
		return new File( baseFile ).getParent( );
	}
	/**
	 * Set the action to edit with a serialized string
	 * 
	 * @param input
	 *            the serialized string
	 * @throws DesignFileException
	 */
	public void setInputString( String input ) throws DesignFileException
	{
		setInput( ModuleUtil.deserializeAction( input ) );
	}
	/**
	 * Returns the serialized result action.
	 * 
	 * @return the serialized result action
	 * @throws IOException
	 */
	public String getResultString( ) throws IOException
	{
		return ModuleUtil.serializeAction( (ActionHandle) getResult( ) );
	}
}