/*
* Freeplane - mind map editor
* Copyright (C) 2009 Dimitry
*
* This file author is Dimitry
*
* This program 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 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.freeplane.core.ui.components;
/**
* @author Dimitry Polivaev
* 22.08.2009
*/
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Image;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import javax.swing.JComponent;
import javax.swing.JFileChooser;
import javax.swing.border.MatteBorder;
import org.freeplane.core.resources.ResourceController;
import org.freeplane.core.util.LogUtils;
import org.freeplane.view.swing.features.filepreview.BitmapViewerComponent;
public class BitmapImagePreview extends JComponent implements PropertyChangeListener {
/**
*
*/
private static final long serialVersionUID = 1L;
protected static final int BORDER_WIDTH = 2;
protected final JFileChooser fc;
public BitmapImagePreview(final JFileChooser fc) {
super();
this.fc = fc;
setBorder(new MatteBorder(BORDER_WIDTH, BORDER_WIDTH, BORDER_WIDTH, BORDER_WIDTH, Color.BLACK));
final int previewSize = ResourceController.getResourceController().getIntProperty("image_preview_size", 300);
setPreferredSize(new Dimension(previewSize, previewSize));
fc.addPropertyChangeListener(this);
}
public void propertyChange(final PropertyChangeEvent e) {
final String prop = e.getPropertyName();
//If the directory changed, don't show an image.
final File file;
if (JFileChooser.DIRECTORY_CHANGED_PROPERTY.equals(prop)) {
file = null;
//If a file became selected, find out which one.
}
else if (JFileChooser.SELECTED_FILE_CHANGED_PROPERTY.equals(prop)) {
file = (File) e.getNewValue();
}
else {
return;
}
if (file == null || !file.exists()) {
return;
}
if (getComponentCount() == 1) {
remove(0);
}
repaint();
try {
updateView(file);
}
catch (final MalformedURLException e1) {
LogUtils.warn(e1);
}
catch (final IOException e1) {
LogUtils.warn(e1);
}
}
protected void updateView(final File file) throws MalformedURLException, IOException {
final BitmapViewerComponent viewer = new BitmapViewerComponent(file.toURI());
viewer.setHint(Image.SCALE_FAST);
final Dimension size = getSize();
size.width -= 2 * BORDER_WIDTH;
size.height -= 2 * BORDER_WIDTH;
viewer.setPreferredSize(size);
viewer.setSize(size);
viewer.setLocation(BORDER_WIDTH, BORDER_WIDTH);
add(viewer);
viewer.revalidate();
viewer.repaint();
}
}