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POAdding keylistener to panel in CardLayout
 

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  1. POAdding keylistener to panel in CardLayout
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    <p>I'm writing a simple game, and I have main frame with 4 JPanels placed in CardLayout. Main frame looks like that:</p> <pre><code>private static JPanel[] panele = new JPanel[4]; private static JPanel panel; public GameWindow() { super("Sokoban"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setLayout(new BorderLayout()); panele[0] = new MainMenu(); panele[1] = new LoadGameMenu(); panele[2] = new SaveGameMenu(); panele[3] = new GameScene(); panel = new JPanel(new CardLayout()); //((MainMenu)panele[0]).setSaveOptionState(false); panel.add(panele[0], "MainMenu"); panel.add(panele[1], "LoadGameMenu"); panel.add(panele[2], "SaveGameMenu"); panel.add(panele[3], "GameScene"); add(panel, BorderLayout.CENTER); } </code></pre> <p>The GameScene panel have react to keyboard input. First I tried keylistener:</p> <pre><code>public GameScene() { setFocusable(true); initWorld(); //Drawing on JPanel takes place here addKeyListener(new Keyboard()); } class Keyboard extends KeyAdapter { private int key; public void keyPressed(KeyEvent event) { System.out.println("Tu jestem"); key = event.getKeyCode(); if(key == KeyEvent.VK_ESCAPE) { Game.gra = new GameWindow(MenuAction.MAIN_MENU); System.out.println("Escape"); } </code></pre> <p>That wasn't working... so I tried keybinding (simple implementation):</p> <pre><code>public GameScene() { setFocusable(true); initWorld(); //Drawing on JPanel takes place here // requestFocus(); setInputMap(WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, getInputMap()); KeyStroke key = KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0); getInputMap().put(key, "pressed"); getActionMap().put("pressed", new AbstractAction(){ public void actionPerformed(ActionEvent arg0) { System.out.println("Spacja"); //Game.gra = new GameWindow(MenuAction.MAIN_MENU); } }); } </code></pre> <p>It's still not working... I tried adding requestFocus and requestFocusInWindow() but with no effect. Any ideas how to fix it or to do it?</p> <p>Solution have been found. In key binding I should write:</p> <pre><code>getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(key, "pressed"); </code></pre> <p>insted of:</p> <pre><code>getInputMap().put(key, "pressed"); </code></pre>
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    1. COwhat is the superclass of GameScene? Component, JComponent or JPanel etc?
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    2. COGameScene extends JPanel
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