001/* =========================================================== 002 * Orson Charts : a 3D chart library for the Java(tm) platform 003 * =========================================================== 004 * 005 * (C)opyright 2013-2022, by David Gilbert. All rights reserved. 006 * 007 * https://github.com/jfree/orson-charts 008 * 009 * This program is free software: you can redistribute it and/or modify 010 * it under the terms of the GNU General Public License as published by 011 * the Free Software Foundation, either version 3 of the License, or 012 * (at your option) any later version. 013 * 014 * This program is distributed in the hope that it will be useful, 015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 017 * GNU General Public License for more details. 018 * 019 * You should have received a copy of the GNU General Public License 020 * along with this program. If not, see <http://www.gnu.org/licenses/>. 021 * 022 * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 023 * Other names may be trademarks of their respective owners.] 024 * 025 * If you do not wish to be bound by the terms of the GPL, an alternative 026 * commercial license can be purchased. For details, please see visit the 027 * Orson Charts home page: 028 * 029 * http://www.object-refinery.com/orsoncharts/index.html 030 * 031 */ 032 033package org.jfree.chart3d.graphics3d.swing; 034 035import java.awt.Graphics2D; 036import java.awt.Rectangle; 037import java.awt.event.ActionEvent; 038import java.awt.geom.Dimension2D; 039import java.awt.image.BufferedImage; 040import java.io.File; 041import java.io.IOException; 042 043import javax.imageio.ImageIO; 044import javax.swing.AbstractAction; 045import javax.swing.JFileChooser; 046import javax.swing.filechooser.FileNameExtensionFilter; 047import org.jfree.chart3d.Resources; 048import org.jfree.chart3d.internal.Args; 049 050/** 051 * An action that handles saving the content of a panel to a PNG image. 052 * <br><br> 053 * NOTE: This class is serializable, but the serialization format is subject 054 * to change in future releases and should not be relied upon for persisting 055 * instances of this class. 056 */ 057@SuppressWarnings("serial") 058public class ExportToPNGAction extends AbstractAction { 059 060 /** The panel to which this action applies. */ 061 private final Panel3D panel; 062 063 /** 064 * Creates a new action instance. 065 * 066 * @param panel the panel ({@code null} not permitted). 067 */ 068 public ExportToPNGAction(Panel3D panel) { 069 super(Resources.localString("PNG_MENU_LABEL")); 070 Args.nullNotPermitted(panel, "panel"); 071 this.panel = panel; 072 } 073 074 /** 075 * Writes the content of the panel to a PNG image, using Java's ImageIO. 076 * 077 * @param e the event. 078 */ 079 @Override 080 public void actionPerformed(ActionEvent e) { 081 JFileChooser fileChooser = new JFileChooser(); 082 FileNameExtensionFilter filter = new FileNameExtensionFilter( 083 Resources.localString("PNG_FILE_FILTER_DESCRIPTION"), "png"); 084 fileChooser.addChoosableFileFilter(filter); 085 fileChooser.setFileFilter(filter); 086 087 int option = fileChooser.showSaveDialog(this.panel); 088 if (option == JFileChooser.APPROVE_OPTION) { 089 String filename = fileChooser.getSelectedFile().getPath(); 090 if (!filename.endsWith(".png")) { 091 filename = filename + ".png"; 092 } 093 Dimension2D size = this.panel.getSize(); 094 int w = (int) size.getWidth(); 095 int h = (int) size.getHeight(); 096 BufferedImage image = new BufferedImage(w, h, 097 BufferedImage.TYPE_INT_ARGB); 098 Graphics2D g2 = image.createGraphics(); 099 this.panel.getDrawable().draw(g2, new Rectangle(w, h)); 100 try { 101 ImageIO.write(image, "png", new File(filename)); 102 } catch (IOException ex) { 103 throw new RuntimeException(ex); 104 } 105 } 106 } 107 108}