/
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.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.*;
import javax.swing.border.Border;
public final class MainPanel extends JPanel {
private MainPanel() {
super(new GridLayout(3, 1, 5, 5));
JTree tree = new JTree();
JCheckBox c = new JCheckBox("CheckBox", true);
c.addActionListener(e -> tree.setEnabled(c.isSelected()));
c.setFocusPainted(false);
JScrollPane l1 = new JScrollPane(tree);
l1.setBorder(new ComponentTitledBorder(c, l1, BorderFactory.createEtchedBorder()));
JLabel icon = new JLabel(UIManager.getIcon("FileChooser.detailsViewIcon"));
JLabel l2 = new JLabel("<html>ComponentTitledBorder<br>+ JLabel + Icon");
l2.setBorder(new ComponentTitledBorder(icon, l2, BorderFactory.createEtchedBorder()));
JButton b = new JButton("Button");
b.setFocusPainted(false);
JLabel l3 = new JLabel("ComponentTitledBorder + JButton");
l3.setBorder(new ComponentTitledBorder(b, l3, BorderFactory.createEtchedBorder()));
add(l1);
add(l2);
add(l3);
setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
setPreferredSize(new Dimension(320, 240));
}
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);
}
}
class ComponentTitledBorder extends MouseAdapter implements Border, SwingConstants {
private static final int OFFSET = 5;
private final Component comp;
private final Border border;
protected ComponentTitledBorder(Component comp, Container container, Border border) {
super();
this.comp = comp;
this.border = border;
if (comp instanceof JComponent) {
((JComponent) comp).setOpaque(true);
}
container.addMouseListener(this);
container.addMouseMotionListener(this);
}
@Override public boolean isBorderOpaque() {
return true;
}
@Override public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
if (c instanceof Container) {
Insets borderInsets = border.getBorderInsets(c);
Insets insets = getBorderInsets(c);
int temp = (insets.top - borderInsets.top) / 2;
border.paintBorder(c, g, x, y + temp, width, height - temp);
Dimension size = comp.getPreferredSize();
Rectangle rect = new Rectangle(OFFSET, 0, size.width, size.height);
SwingUtilities.paintComponent(g, comp, (Container) c, rect);
comp.setBounds(rect);
}
}
@Override public Insets getBorderInsets(Component c) {
Dimension size = comp.getPreferredSize();
Insets insets = border.getBorderInsets(c);
insets.top = Math.max(insets.top, size.height);
return insets;
}
private void dispatchEvent(MouseEvent e) {
Component src = e.getComponent();
comp.dispatchEvent(SwingUtilities.convertMouseEvent(src, e, comp));
src.repaint();
}
@Override public void mouseClicked(MouseEvent e) {
dispatchEvent(e);
}
@Override public void mouseEntered(MouseEvent e) {
dispatchEvent(e);
}
@Override public void mouseExited(MouseEvent e) {
dispatchEvent(e);
}
@Override public void mousePressed(MouseEvent e) {
dispatchEvent(e);
}
@Override public void mouseReleased(MouseEvent e) {
dispatchEvent(e);
}
@Override public void mouseMoved(MouseEvent e) {
dispatchEvent(e);
}
@Override public void mouseDragged(MouseEvent e) {
dispatchEvent(e);
}
}