private void setMiddle() {
Point point = owner.getLocationOnScreen();
int x = point.x;
int y = point.y;
int width = (int) ((owner.getWidth() - this.getWidth()) / 2);
int height = (int) ((owner.getHeight() - this.getHeight()) / 2);
this.setLocation(x + width, y + height);
}
private static GraphicsDevice getScreen(JFrame window) {
for (GraphicsDevice gd : GraphicsEnvironment.getLocalGraphicsEnvironment().getScreenDevices()) {
if (gd.getDefaultConfiguration().getBounds().contains(window.getLocationOnScreen()))
return gd;
}
System.err.println(
window + " does not appear to be on any screen; fullscreening onto default screen");
return GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
}
public static void main(String[] args) {
final JFrame frame = new JFrame();
frame.setPreferredSize(new Dimension(600, 400));
final JToolBar toolBar = new JToolBar();
// Create the popup menu.
final JPopupMenu popup = new JPopupMenu();
popup.add(
new JMenuItem(
new AbstractAction("Option 1") {
public void actionPerformed(ActionEvent e) {
JOptionPane.showMessageDialog(frame, "Option 1 selected");
}
}));
popup.add(
new JMenuItem(
new AbstractAction("Option 2") {
public void actionPerformed(ActionEvent e) {
JOptionPane.showMessageDialog(frame, "Option 2 selected");
}
}));
final JButton button = new JButton("Options");
toolBar.add(button);
frame.getContentPane().add(toolBar, BorderLayout.NORTH);
frame.pack();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
Point p = frame.getLocationOnScreen();
System.out.println(p.x);
button.addMouseListener(
new MouseAdapter() {
public void mousePressed(MouseEvent e) {
if (e.isMetaDown()) {
popup.show(e.getComponent(), e.getX(), e.getY());
} else {
System.out.println(e.getXOnScreen() + " " + e.getYOnScreen());
}
}
});
}