Bug 176450 Support link to CSS Feature(Model Part)
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/css/CssStyleSheet.java
{
		return new ArrayList( styles.values( ) );
	}
	/**
	 * Adds a style sheet parser exception into the warning list.
	 * 
	 * @param warnings
	 *            the warning list to add
	 */
	public void addWarning( List warnings )
	{
		warnings.addAll( warnings );
	}
	/**
	 * Gets the warning list during the loading.
	 * 
	 * @return the warning list
	 */
	public List getWarnings( )
	{
		return this.warnings;
	}
	/**
	 * Adds an unsupported style exception to the list.
	 * 
	 * @param styleName
	 *            the style name that is not supported
	 * @param e
	 *            the exception that is caused by the unsupported style
	 */