Bug 180089 BIRT model - TOC predefined styles
In ROM we need to support predefined styles for TOC too. This will allow user to easily create a TOC style, by creating one of two styles. Suggestion i have is - TOC ( Applies to all TOC nodes ) - TOC-level1 ( If defined applies to first level toc nodes ) - TOC-level2 ........... - TOC-level5
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ReportDesignHandle.java
* that the order of the styles within the slot is unimportant.
	 * 
	 * @return A handle for working with the styles.
	 * 
	 */
	public SlotHandle getStyles( )
	{
		return getSlot( IReportDesignModel.STYLE_SLOT );
	}
	/**
	 * Gets all css styles sheet
	 * 
	 * @return each item is <code>CssStyleSheetHandle</code>
	 */
	public List getAllCssStyleSheets( )
	{
		ReportDesign design = (ReportDesign) getElement( );
		List allStyles = new ArrayList( );
		List csses = design.getCsses( );
		for ( int i = 0; csses != null && i < csses.size( ); ++i )
		{
			CssStyleSheet sheet = (CssStyleSheet) csses.get( i );
			allStyles.add( sheet.handle( getModule( ) ) );
		}
		return allStyles;
	}
	/**
	 * Find style by style name
	 * 
	 * @param style