51 lines
1.3 KiB
Java
51 lines
1.3 KiB
Java
//: gui/Popup.java
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// Creating popup menus with Swing.
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import javax.swing.*;
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import java.awt.*;
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import java.awt.event.*;
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import static net.mindview.util.SwingConsole.*;
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public class Popup extends JFrame {
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private JPopupMenu popup = new JPopupMenu();
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private JTextField t = new JTextField(10);
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public Popup() {
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setLayout(new FlowLayout());
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add(t);
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ActionListener al = e ->
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t.setText(((JMenuItem)e.getSource()).getText());
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JMenuItem m = new JMenuItem("Hither");
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m.addActionListener(al);
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popup.add(m);
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m = new JMenuItem("Yon");
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m.addActionListener(al);
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popup.add(m);
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m = new JMenuItem("Afar");
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m.addActionListener(al);
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popup.add(m);
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popup.addSeparator();
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m = new JMenuItem("Stay Here");
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m.addActionListener(al);
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popup.add(m);
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PopupListener pl = new PopupListener();
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addMouseListener(pl);
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t.addMouseListener(pl);
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}
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class PopupListener extends MouseAdapter {
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@Override
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public void mousePressed(MouseEvent e) {
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maybeShowPopup(e);
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}
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@Override
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public void mouseReleased(MouseEvent e) {
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maybeShowPopup(e);
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}
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private void maybeShowPopup(MouseEvent e) {
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if(e.isPopupTrigger())
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popup.show(e.getComponent(), e.getX(), e.getY());
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}
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}
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public static void main(String[] args) {
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run(new Popup(), 300, 200);
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}
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} ///:~
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