/*
JWildfire - an image and animation processor written in Java
Copyright (C) 1995-2011 Andreas Maschke
This 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 software 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 software;
if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jwildfire.create.tina.swing;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.File;
import java.io.StringReader;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFileChooser;
import javax.swing.JPanel;
import org.jwildfire.base.Tools;
import org.jwildfire.image.SimpleImage;
import com.kitfox.svg.SVGDiagram;
import com.kitfox.svg.SVGUniverse;
public class SvgFilePreview extends JPanel implements PropertyChangeListener {
private static final long serialVersionUID = 1L;
private final JFileChooser fileChooser;
private ImageIcon currThumbnail = null;
private File currFile = null;
final int BUTTON_WIDTH = 100;
final int BUTTON_HEIGHT = 24;
public SvgFilePreview(JFileChooser pFileChooser) {
fileChooser = pFileChooser;
Dimension outerSize = new Dimension(192, 120 + BUTTON_HEIGHT);
Dimension innerSize = new Dimension(192, 120);
Dimension buttonSize = new Dimension(BUTTON_WIDTH, BUTTON_HEIGHT);
setPreferredSize(outerSize);
setSize(outerSize);
pFileChooser.addPropertyChangeListener(this);
PreviewPanel previewPnl = new PreviewPanel();
previewPnl.setPreferredSize(innerSize);
previewPnl.setSize(innerSize);
JButton delButton = new JButton();
delButton.setPreferredSize(buttonSize);
delButton.setLocation(0, 120);
delButton.setText("Delete");
delButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
deleteFile();
}
});
add(previewPnl);
add(delButton);
}
protected void deleteFile() {
if (currFile != null && currFile.exists() && StandardDialogs.confirm(this, "Do you really want to permanently remove this file?")) {
currFile.delete();
fileChooser.rescanCurrentDirectory();
fileChooser.setSelectedFile(null);
fileChooser.rescanCurrentDirectory();
File selFile = fileChooser.getSelectedFile();
propertyChange(new PropertyChangeEvent(this, JFileChooser.SELECTED_FILE_CHANGED_PROPERTY, currFile, selFile));
}
}
public void createThumbnail() {
if (currFile == null) {
currThumbnail = null;
return;
}
try {
if (currFile.exists()) {
SVGUniverse svgUniverse = new SVGUniverse();
String svg = Tools.readUTF8Textfile(currFile.getAbsolutePath());
StringReader reader = new StringReader(svg);
SVGDiagram diagram = svgUniverse.getDiagram(svgUniverse.loadSVG(reader, "svgImage"));
int imgWidth = this.getPreferredSize().width;
int imgHeight = this.getPreferredSize().height - BUTTON_HEIGHT;
SimpleImage imgMap = new SimpleImage(imgWidth, imgHeight);
Graphics2D g = imgMap.getBufferedImg().createGraphics();
double sclX = (double) imgWidth / diagram.getWidth();
double sclY = (double) imgHeight / diagram.getHeight();
double scl = sclX < sclY ? sclX : sclY;
g.scale(scl, scl);
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
diagram.render(g);
currThumbnail = new ImageIcon(imgMap.getBufferedImg());
}
}
catch (Exception ex) {
currThumbnail = null;
if (ex.getCause() != null) {
ex.getCause().printStackTrace();
}
else {
ex.printStackTrace();
}
}
}
public void propertyChange(PropertyChangeEvent e) {
boolean update = false;
String prop = e.getPropertyName();
if (JFileChooser.DIRECTORY_CHANGED_PROPERTY.equals(prop)) {
currFile = null;
update = true;
}
else if (JFileChooser.SELECTED_FILE_CHANGED_PROPERTY.equals(prop)) {
currFile = (File) e.getNewValue();
update = true;
}
if (update) {
currThumbnail = null;
if (isShowing()) {
createThumbnail();
repaint();
}
}
}
private class PreviewPanel extends JComponent {
private static final long serialVersionUID = 1L;
protected void paintComponent(Graphics g) {
if (currThumbnail == null) {
createThumbnail();
}
if (currThumbnail != null) {
currThumbnail.paintIcon(this, g, 0, 0);
}
}
}
}