GUI: Popup menu example

java-tester-x · java-tester-x · commit 71fdecfd6e8c · 2015-09-12T08:17:04.000+03:00
diff --git a/gui/Popup.java b/gui/Popup.java
@@ -0,0 +1,84 @@
+package gui;
+
+/**
+ * RUN:
+ *         javac -cp .; gui/Popup.java && java -cp .; gui.Popup
+ * OUTPUT:
+ *         
+ */
+
+import java.io.*;
+import java.util.*;
+
+import javax.swing.*;
+import javax.swing.event.*;
+
+import java.awt.*;
+import java.awt.event.*;
+
+import net.mindview.util.*;
+
+public class Popup extends JFrame {
+
+    private static final int WIDTH  = 300;
+    private static final int HEIHGT = 200;
+
+    private JPopupMenu popup = new JPopupMenu();
+    private JTextField t     = new JTextField(10);
+
+    public Popup() {
+        setLayout(new FlowLayout());
+
+        add(t);
+
+        ActionListener al = new ActionListener() {
+            public void actionPerformed(ActionEvent e) {
+                t.setText(((JMenuItem)e.getSource()).getText());
+            }
+        };
+
+        JMenuItem m = new JMenuItem("Hither");
+        m.addActionListener(al);
+        popup.add(m);
+
+        m = new JMenuItem("Yon");
+        m.addActionListener(al);
+        popup.add(m);
+
+        m = new JMenuItem("Afar");
+        m.addActionListener(al);
+        popup.add(m);
+
+        popup.addSeparator();
+
+        m = new JMenuItem("Stay Here");
+        m.addActionListener(al);
+        popup.add(m);
+
+        PopupListener pl = new PopupListener();
+        addMouseListener(pl);
+
+        t.addMouseListener(pl);
+    }
+
+
+    class PopupListener extends MouseAdapter {
+
+        public void mousePressed(MouseEvent e) {
+            maybeShowPopup(e);
+        }
+
+        public void mouseReleased(MouseEvent e) {
+            maybeShowPopup(e);
+        }
+
+        public void maybeShowPopup(MouseEvent e) {
+            popup.show(e.getComponent(), e.getX(), e.getY());
+        }
+    }
+
+
+    public static void main(String[] args) {
+        SwingConsole.run(new Popup(), WIDTH, HEIHGT);
+    }    
+}
