/*
* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores
* CA 94065 USA or visit www.oracle.com if you need additional information or
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*/
package com.codename1.designer;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import javax.imageio.ImageIO;
import javax.swing.BorderFactory;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JPanel;
public class PreviewPane extends JPanel implements PropertyChangeListener {
private JLabel label;
private JLabel previewDetails;
private int maxImgWidth;
public PreviewPane(JFileChooser chooser) {
chooser.setAccessory(this);
chooser.addPropertyChangeListener(this);
setLayout(new BorderLayout(5, 5));
setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
previewDetails = new JLabel("Preview:");
add(previewDetails, BorderLayout.NORTH);
label = new JLabel();
label.setBackground(Color.WHITE);
label.setPreferredSize(new Dimension(200, 200));
maxImgWidth = 195;
label.setOpaque(false);
label.setBorder(BorderFactory.createEtchedBorder());
add(label, BorderLayout.CENTER);
}
public void propertyChange(PropertyChangeEvent evt) {
Icon icon = null;
if (JFileChooser.SELECTED_FILE_CHANGED_PROPERTY.equals(evt.getPropertyName())) {
File newFile = (File) evt.getNewValue();
if (newFile != null) {
previewDetails.setText("" + (newFile.length() / 1024) + "kb");
String path = newFile.getAbsolutePath();
if (path.endsWith(".gif") || path.endsWith(".jpg") || path.endsWith(".png") || path.endsWith(".bmp")) {
try {
BufferedImage img = ImageIO.read(newFile);
previewDetails.setText(previewDetails.getText() + " " + img.getWidth() + "x" + img.getHeight());
float width = img.getWidth();
float height = img.getHeight();
float scale = height / width;
width = maxImgWidth;
height = (width * scale); // height should be scaled from new width
icon = new ImageIcon(img.getScaledInstance(Math.max(1, (int) width), Math.max(1, (int) height), Image.SCALE_SMOOTH));
} catch (IOException e) {
// couldn't read image.
}
} else {
if(path.endsWith(".svg")) {
InputStream input = null;
try {
input = new FileInputStream(newFile);
org.apache.batik.transcoder.image.PNGTranscoder t = new org.apache.batik.transcoder.image.PNGTranscoder();
org.apache.batik.transcoder.TranscoderInput i = new org.apache.batik.transcoder.TranscoderInput(input);
ByteArrayOutputStream bo = new ByteArrayOutputStream();
org.apache.batik.transcoder.TranscoderOutput o = new org.apache.batik.transcoder.TranscoderOutput(bo);
//t.addTranscodingHint(org.apache.batik.transcoder.SVGAbstractTranscoder.KEY_WIDTH, maxImgWidth);
//t.addTranscodingHint(org.apache.batik.transcoder.SVGAbstractTranscoder.KEY_HEIGHT, maxImgWidth);
t.transcode(i, o);
input.close();
bo.close();
icon = new ImageIcon(ImageIO.read(new ByteArrayInputStream(bo.toByteArray())));
} catch (Exception ex) {
ex.printStackTrace();
} finally {
try {
input.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
}
}
label.setIcon(icon);
repaint();
}
}
}