add menus

Author: siordache

src/main/java/org/beryx/swing/handler/Demo.java

@@ -16,7 +16,6 @@
 package org.beryx.swing.handler;
 
 import org.beryx.textio.TextIO;
-import org.beryx.textio.swing.SwingTextTerminal;
 
 public class Demo {
     private static class Product {
@@ -36,7 +35,7 @@ public String toString() {
 
 
     public static void main(String[] args) {
-        SwingTextTerminal terminal = new SwingTextTerminal();
+        MarsTerminal terminal = new MarsTerminal();
         terminal.init();
         TextIO textIO = new TextIO(terminal);
 

src/main/java/org/beryx/swing/handler/MarsTerminal.java

@@ -0,0 +1,82 @@
+package org.beryx.swing.handler;
+
+import org.beryx.textio.swing.SwingTextTerminal;
+
+import javax.swing.*;
+import java.awt.event.*;
+import java.util.logging.Logger;
+
+public class MarsTerminal extends SwingTextTerminal {
+    private static Logger logger = Logger.getLogger(MarsTerminal.class.getName());
+
+    private final JPopupMenu popup = new JPopupMenu();
+
+    private static class PopupListener extends MouseAdapter {
+        private final JPopupMenu popup;
+
+        public PopupListener(JPopupMenu popup) {
+            this.popup = popup;
+        }
+
+        public void mousePressed(MouseEvent e) {
+            maybeShowPopup(e);
+        }
+
+        public void mouseReleased(MouseEvent e) {
+            maybeShowPopup(e);
+        }
+
+        private void maybeShowPopup(MouseEvent e) {
+            if (e.isPopupTrigger()) {
+                popup.show(e.getComponent(), e.getX(), e.getY());
+            }
+        }
+    }
+
+    public MarsTerminal() {
+        configureMainMenu();
+
+        JTextPane textPane = getTextPane();
+        addAction("ctrl C", "Copy", () -> textPane.copy());
+        addAction("ctrl V", "Paste", () -> textPane.paste());
+        MouseListener popupListener = new PopupListener(popup);
+        textPane.addMouseListener(popupListener);
+    }
+
+    private void configureMainMenu() {
+        JFrame frame = getFrame();
+        frame.setTitle("Mars Simulation");
+        JMenuBar menuBar = new JMenuBar();
+        JMenu menu = new JMenu("Help");
+        menu.setMnemonic(KeyEvent.VK_H);
+
+        JMenuItem menuItem = new JMenuItem("About", KeyEvent.VK_A);
+        menuItem.addActionListener(e -> JOptionPane.showMessageDialog(frame, "The Mars Simulation Project"));
+        menu.add(menuItem);
+
+        menuBar.add(menu);
+        frame.setJMenuBar(menuBar);
+    }
+
+    private boolean addAction(String keyStroke, String menuText, Runnable action) {
+        KeyStroke ks = KeyStroke.getKeyStroke(keyStroke);
+        if(ks == null) {
+            logger.warning("Invalid keyStroke: " + keyStroke);
+            return false;
+        }
+        JMenuItem menuItem = new JMenuItem(menuText);
+        menuItem.addActionListener(e -> action.run());
+        popup.add(menuItem);
+
+        JTextPane textPane = getTextPane();
+        String actionKey = "MarsTerminal." + keyStroke.replaceAll("\\s", "-");
+        textPane.getInputMap().put(ks, actionKey);
+        textPane.getActionMap().put(actionKey, new AbstractAction() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                action.run();
+            }
+        });
+        return true;
+    }
+}