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MainPanel.java
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/
MainPanel.java
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// -*- mode:java; encoding:utf-8 -*-
// vim:set fileencoding=utf-8:
// @homepage@
package example;
import java.awt.*;
import javax.swing.*;
public final class MainPanel extends JPanel {
private MainPanel() {
super(new BorderLayout());
JInternalFrame palette = new JInternalFrame("Palette", true, false, true, true);
palette.setBounds(0, 0, 120, 120);
palette.setMinimumSize(new Dimension(50, 50));
palette.putClientProperty("JInternalFrame.isPalette", Boolean.TRUE);
palette.add(new JScrollPane(new JTree()));
palette.setVisible(true);
JDesktopPane desktop = new JDesktopPane();
desktop.add(palette, JLayeredPane.PALETTE_LAYER);
desktop.add(createFrame(0));
desktop.add(createFrame(1));
desktop.add(createFrame(2));
JCheckBox check = new JCheckBox("Palette", true);
check.addActionListener(e -> {
Object c = e.getSource();
if (c instanceof AbstractButton) {
AbstractButton b = (AbstractButton) c;
palette.setVisible(b.isSelected());
}
});
add(check, BorderLayout.NORTH);
add(desktop);
setPreferredSize(new Dimension(320, 240));
}
private JInternalFrame createFrame(int i) {
JInternalFrame f = new JInternalFrame("title: " + i, true, true, true, true);
f.putClientProperty("JInternalFrame.isPalette", Boolean.TRUE);
f.setSize(160, 120);
EventQueue.invokeLater(() -> f.setVisible(true));
f.setLocation(100 + 20 * i, 10 + 20 * i);
return f;
}
public static void main(String[] args) {
EventQueue.invokeLater(MainPanel::createAndShowGui);
}
private static void createAndShowGui() {
// try {
// UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
// } catch (UnsupportedLookAndFeelException ignored) {
// Toolkit.getDefaultToolkit().beep();
// } catch (ClassNotFoundException | InstantiationException | IllegalAccessException ex) {
// ex.printStackTrace();
// return;
// }
JFrame frame = new JFrame("@title@");
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.getContentPane().add(new MainPanel());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
}