Java tutorial
/* * ShowHideNodeLabelsMenuHandler.java * * This work is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published * by the Free Software Foundation; either version 2 of the License, * or (at your option) any later version. * * This work 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * USA * * Copyright (c) 2010-2016 iTransformers Labs. All rights reserved. */ package net.itransformers.topologyviewer.menu.handlers; import edu.uci.ics.jung.visualization.decorators.ToStringLabeller; import net.itransformers.topologyviewer.gui.GraphViewerPanel; import net.itransformers.topologyviewer.gui.TopologyManagerFrame; import org.apache.commons.collections15.functors.ConstantTransformer; import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; /** * Created by IntelliJ IDEA. * Date: 12-4-27 * Time: 23:30 * To change this template use File | Settings | File Templates. */ public class ShowHideNodeLabelsMenuHandler implements ActionListener { private TopologyManagerFrame frame; public ShowHideNodeLabelsMenuHandler(TopologyManagerFrame frame) throws HeadlessException { this.frame = frame; } @Override public void actionPerformed(ActionEvent e) { GraphViewerPanel viewerPanel = (GraphViewerPanel) frame.getTabbedPane().getSelectedComponent(); if (viewerPanel.isVertexLabel()) { viewerPanel.getVisualizationViewer().getRenderContext() .setVertexLabelTransformer(new ConstantTransformer(null)); viewerPanel.getVisualizationViewer().repaint(); viewerPanel.setVertexLabel(false); } else { viewerPanel.getVisualizationViewer().getRenderContext() .setVertexLabelTransformer(new ToStringLabeller<String>()); viewerPanel.getVisualizationViewer().repaint(); viewerPanel.setVertexLabel(true); } } }