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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 java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import javax.swing.*;
public final class MainPanel extends JPanel {
private MainPanel() {
super(new BorderLayout());
JLabel label = new JLabel("", SwingConstants.CENTER);
label.addComponentListener(new ComponentAdapter() {
@Override public void componentResized(ComponentEvent e) {
JLabel l = (JLabel) e.getComponent();
l.setText(l.getSize().toString());
}
});
Toolkit.getDefaultToolkit().setDynamicLayout(true);
JCheckBox check = new JCheckBox("DynamicLayout", true);
check.addActionListener(e -> {
boolean b = ((JCheckBox) e.getSource()).isSelected();
Toolkit.getDefaultToolkit().setDynamicLayout(b);
});
add(label);
add(check, BorderLayout.NORTH);
// setPreferredSize(new Dimension(320, 240));
// setMinimumSize(new Dimension(300, 150));
}
@Override public Dimension getPreferredSize() {
return new Dimension(320, 200);
}
@Override public Dimension getMinimumSize() {
return new Dimension(300, 150);
}
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.addComponentListener(new ComponentAdapter() {
// private final int mw = 256;
// private final int mh = 100;
// @Override public void componentResized(ComponentEvent e) {
// int fw = frame.getSize().width;
// int fh = frame.getSize().height;
// frame.setSize(mw > fw ? mw : fw, mh > fh ? mh : fh);
// }
// });
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.getContentPane().add(new MainPanel());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
}