org.graphstream.ui.graphicGraph.stylesheet.StyleSheetListener Maven / Gradle / Ivy
/*
* This file is part of GraphStream .
*
* GraphStream is a library whose purpose is to handle static or dynamic
* graph, create them from scratch, file or any source and display them.
*
* This program is free software distributed under the terms of two licenses, the
* CeCILL-C license that fits European law, and the GNU Lesser General Public
* License. You can use, modify and/ or redistribute the software under the terms
* of the CeCILL-C license as circulated by CEA, CNRS and INRIA at the following
* URL or under the terms of the GNU LGPL as published by
* the Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
*
* This program 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 program. If not, see .
*
* The fact that you are presently reading this means that you have had
* knowledge of the CeCILL-C and LGPL licenses and that you accept their terms.
*/
/**
* @since 2009-04-17
*
* @author Guilhelm Savin
* @author Antoine Dutot
* @author Hicham Brahimi
*/
package org.graphstream.ui.graphicGraph.stylesheet;
/**
* Listener for style events.
*/
public interface StyleSheetListener {
/**
* A style was changed or added. To differentiate the addition of a new style
* from a change (augmentation) of an existing style, two values are passed, the
* old style if augmented and the new style. The first is set to null if the
* style is added. The old style is set to a value if is was augmented.
*
* @param oldRule
* The style that changed.
* @param newRule
* The style that was added to the style sheet.
*/
void styleAdded(Rule oldRule, Rule newRule);
/**
* The complete style sheet was cleared.
*/
void styleSheetCleared();
}