public void unregisterKeyStroke(KeyStroke ks, JComponent c) {

    // component may have already been removed from the hierarchy, we
    // need to look up the container using the componentKeyStrokeMap.

    ComponentKeyStrokePair ckp = new ComponentKeyStrokePair(c, ks);

    Container topContainer = componentKeyStrokeMap.get(ckp);

    if (topContainer == null) { // never heard of this pairing, so bail
      return;
    }

    Hashtable keyMap = containerMap.get(topContainer);
    if (keyMap == null) { // this should never happen, but I'm being safe
      Thread.dumpStack();
      return;
    }

    Object tmp = keyMap.get(ks);
    if (tmp == null) { // this should never happen, but I'm being safe
      Thread.dumpStack();
      return;
    }

    if (tmp instanceof JComponent && tmp == c) {
      keyMap.remove(ks); // remove the KeyStroke from the Map
      // System.out.println("removed a stroke" + ks);
    } else if (tmp
        instanceof Vector) { // this means there is more than one component reg for this key
      Vector v = (Vector) tmp;
      v.removeElement(c);
      if (v.isEmpty()) {
        keyMap.remove(ks); // remove the KeyStroke from the Map
        // System.out.println("removed a ks vector");
      }
    }

    if (keyMap.isEmpty()) { // if no more bindings in this table
      containerMap.remove(topContainer); // remove table to enable GC
      // System.out.println("removed a container");
    }

    componentKeyStrokeMap.remove(ckp);

    // Check for EmbeddedFrame case, they know how to process accelerators even
    // when focus is not in Java
    if (topContainer instanceof EmbeddedFrame) {
      ((EmbeddedFrame) topContainer).unregisterAccelerator(ks);
    }
  }
Beispiel #2
1
 final void disableTrueDoubleBuffering() {
   if (useTrueDoubleBuffering) {
     if (!IGNORE_DISABLE_TRUE_DOUBLE_BUFFERING) {
       if (LOG_DISABLE_TRUE_DOUBLE_BUFFERING) {
         System.out.println("Disabling true double buffering for " + this);
         Thread.dumpStack();
       }
       useTrueDoubleBuffering = false;
       RepaintManager.currentManager(this).doubleBufferingChanged(this);
     }
   }
 }
  /**
   * register keystrokes here which are for the WHEN_IN_FOCUSED_WINDOW case. Other types of
   * keystrokes will be handled by walking the hierarchy That simplifies some potentially hairy
   * stuff.
   */
  public void registerKeyStroke(KeyStroke k, JComponent c) {
    Container topContainer = getTopAncestor(c);
    if (topContainer == null) {
      return;
    }
    Hashtable keyMap = containerMap.get(topContainer);

    if (keyMap == null) { // lazy evaluate one
      keyMap = registerNewTopContainer(topContainer);
    }

    Object tmp = keyMap.get(k);
    if (tmp == null) {
      keyMap.put(k, c);
    } else if (tmp instanceof Vector) { // if there's a Vector there then add to it.
      Vector v = (Vector) tmp;
      if (!v.contains(c)) { // only add if this keystroke isn't registered for this component
        v.addElement(c);
      }
    } else if (tmp instanceof JComponent) {
      // if a JComponent is there then remove it and replace it with a vector
      // Then add the old compoennt and the new compoent to the vector
      // then insert the vector in the table
      if (tmp != c) { // this means this is already registered for this component, no need to dup
        Vector<JComponent> v = new Vector<JComponent>();
        v.addElement((JComponent) tmp);
        v.addElement(c);
        keyMap.put(k, v);
      }
    } else {
      System.out.println("Unexpected condition in registerKeyStroke");
      Thread.dumpStack();
    }

    componentKeyStrokeMap.put(new ComponentKeyStrokePair(c, k), topContainer);

    // Check for EmbeddedFrame case, they know how to process accelerators even
    // when focus is not in Java
    if (topContainer instanceof EmbeddedFrame) {
      ((EmbeddedFrame) topContainer).registerAccelerator(k);
    }
  }
  /**
   * This method is called when the focused component (and none of its ancestors) want the key
   * event. This will look up the keystroke to see if any chidren (or subchildren) of the specified
   * container want a crack at the event. If one of them wants it, then it will "DO-THE-RIGHT-THING"
   */
  public boolean fireKeyboardAction(KeyEvent e, boolean pressed, Container topAncestor) {

    if (e.isConsumed()) {
      System.out.println("Acquired pre-used event!");
      Thread.dumpStack();
    }

    // There may be two keystrokes associated with a low-level key event;
    // in this case a keystroke made of an extended key code has a priority.
    KeyStroke ks;
    KeyStroke ksE = null;

    if (e.getID() == KeyEvent.KEY_TYPED) {
      ks = KeyStroke.getKeyStroke(e.getKeyChar());
    } else {
      if (e.getKeyCode() != e.getExtendedKeyCode()) {
        ksE = KeyStroke.getKeyStroke(e.getExtendedKeyCode(), e.getModifiers(), !pressed);
      }
      ks = KeyStroke.getKeyStroke(e.getKeyCode(), e.getModifiers(), !pressed);
    }

    Hashtable keyMap = containerMap.get(topAncestor);
    if (keyMap != null) { // this container isn't registered, so bail

      Object tmp = null;
      // extended code has priority
      if (ksE != null) {
        tmp = keyMap.get(ksE);
        if (tmp != null) {
          ks = ksE;
        }
      }
      if (tmp == null) {
        tmp = keyMap.get(ks);
      }

      if (tmp == null) {
        // don't do anything
      } else if (tmp instanceof JComponent) {
        JComponent c = (JComponent) tmp;
        if (c.isShowing() && c.isEnabled()) { // only give it out if enabled and visible
          fireBinding(c, ks, e, pressed);
        }
      } else if (tmp instanceof Vector) { // more than one comp registered for this
        Vector v = (Vector) tmp;
        // There is no well defined order for WHEN_IN_FOCUSED_WINDOW
        // bindings, but we give precedence to those bindings just
        // added. This is done so that JMenus WHEN_IN_FOCUSED_WINDOW
        // bindings are accessed before those of the JRootPane (they
        // both have a WHEN_IN_FOCUSED_WINDOW binding for enter).
        for (int counter = v.size() - 1; counter >= 0; counter--) {
          JComponent c = (JComponent) v.elementAt(counter);
          // System.out.println("Trying collision: " + c + " vector = "+ v.size());
          if (c.isShowing() && c.isEnabled()) { // don't want to give these out
            fireBinding(c, ks, e, pressed);
            if (e.isConsumed()) return true;
          }
        }
      } else {
        System.out.println("Unexpected condition in fireKeyboardAction " + tmp);
        // This means that tmp wasn't null, a JComponent, or a Vector.  What is it?
        Thread.dumpStack();
      }
    }

    if (e.isConsumed()) {
      return true;
    }
    // if no one else handled it, then give the menus a crack
    // The're handled differently.  The key is to let any JMenuBars
    // process the event
    if (keyMap != null) {
      Vector v = (Vector) keyMap.get(JMenuBar.class);
      if (v != null) {
        Enumeration iter = v.elements();
        while (iter.hasMoreElements()) {
          JMenuBar mb = (JMenuBar) iter.nextElement();
          if (mb.isShowing() && mb.isEnabled()) { // don't want to give these out
            boolean extended = (ksE != null) && !ksE.equals(ks);
            if (extended) {
              fireBinding(mb, ksE, e, pressed);
            }
            if (!extended || !e.isConsumed()) {
              fireBinding(mb, ks, e, pressed);
            }
            if (e.isConsumed()) {
              return true;
            }
          }
        }
      }
    }

    return e.isConsumed();
  }