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// Copyright 2001 freehep
package org.freehep.graphicsio.exportchooser;
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
/**
* A dialog showing a progress bar and a label. Pressing the cancel button will
* call the cancel method on an
* ExportGraphicsFileTypeAdaptor.CancelThread. Exceptions occuring
* in another thread can be reported to this class and at the end of the thread
* queried.
*
* @author Simon Fischer
* @version $Id: freehep-graphicsio/src/main/java/org/freehep/graphicsio/exportchooser/ProgressDialog.java 5641ca92a537 2005/11/26 00:15:35 duns $
*/
public class ProgressDialog extends JDialog {
private JProgressBar progressBar;
private JLabel label;
private int progress;
private IOException exception;
private AbstractExportFileType.CancelThread thread;
public ProgressDialog(Component parent, int steps, String string) {
setTitle("Exporting file...");
setModal(true);
this.exception = null;
this.progress = 0;
getContentPane().setLayout(new BorderLayout());
JPanel center = new JPanel(new GridLayout(2, 1));
progressBar = new JProgressBar(0, steps);
center.add(progressBar);
label = new JLabel(string);
center.add(label);
getContentPane().add(center, BorderLayout.CENTER);
JPanel buttons = new JPanel(new FlowLayout(FlowLayout.CENTER));
JButton cancel = new JButton("Cancel");
cancel.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
cancel();
}
});
buttons.add(cancel);
getContentPane().add(buttons, BorderLayout.SOUTH);
setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
pack();
if (parent != null) {
Point pLoc = parent.getLocation();
setLocation(pLoc.x + parent.getWidth() / 2 - getWidth() / 2, pLoc.y
+ parent.getHeight() / 2 - getHeight() / 2);
}
}
public void step(String string) {
progressBar.setValue(++progress);
label.setText(string);
repaint();
}
public void exceptionOccured(IOException e) {
this.exception = e;
}
public IOException getException() {
return exception;
}
public void interruptOnCancel(AbstractExportFileType.CancelThread thread) {
this.thread = thread;
}
public void cancel() {
if (thread != null)
thread.cancel();
try {
thread.join();
} catch (InterruptedException e) {
e.printStackTrace();
}
dispose();
}
}
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