/*
* Bibliothek - DockingFrames
* Library built on Java/Swing, allows the user to "drag and drop"
* panels containing any Swing-Component the developer likes to add.
*
* Copyright (C) 2013 Benjamin Sigg
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Benjamin Sigg
* benjamin_sigg@gmx.ch
* CH - Switzerland
*/
package bibliothek.gui.dock.extension.css;
/**
* A set of properties that may be associated with one or several {@link CssRule}s.
* @author Benjamin Sigg
*/
public interface CssRuleContent {
/**
* Gets one of the properties of this rule.
* @param type the type which the property is supposed to have
* @param property the name of the property to read
* @return the property or <code>null</code> if not present
* @throws IllegalArgumentException if the property cannot be understood as <code>type</code>
*/
public <T> T getProperty( CssType<T> type, CssPropertyKey property );
/**
* Adds the observer <code>listener</code> to this object.
* @param listener the new observer, not <code>null</code>
*/
public void addRuleContentListener( CssRuleContentListener listener );
/**
* Removes the observer <code>listener</code> from this object.
* @param listener the listener to remove
*/
public void removeRuleContentListener( CssRuleContentListener listener );
}