java.awt.Event#META_MASK源码实例Demo

private int defaultCaptureHotkeyModifiers() {
  int mod = Event.SHIFT_MASK + Event.META_MASK;
  if (!Settings.isMac()) {
    mod = Event.SHIFT_MASK + Event.CTRL_MASK;
  }
  return mod;
}
 

private int defaultStopHotkeyModifiers() {
  int mod = Event.SHIFT_MASK + Event.META_MASK;
  if (!Settings.isMac()) {
    mod = Event.SHIFT_MASK + Event.ALT_MASK;
  }
  return mod;
}
 

public String getMenuKey() {
    int menuShortcutKeyMask = Toolkit.getDefaultToolkit().getMenuShortcutKeyMask();
    if ((menuShortcutKeyMask & Event.CTRL_MASK) == Event.CTRL_MASK) {
        return "Control";
    }
    if ((menuShortcutKeyMask & Event.META_MASK) == Event.META_MASK) {
        return "Meta";
    }
    return "";
}
 

public static Keys getMenuKey() {
    int keyMask = Toolkit.getDefaultToolkit().getMenuShortcutKeyMask();
    if (keyMask == Event.CTRL_MASK) {
        return Keys.CONTROL;
    }
    if (keyMask == Event.META_MASK) {
        return Keys.META;
    }
    if (keyMask == Event.ALT_MASK) {
        return Keys.ALT;
    }
    throw new WebDriverException("Unable to find the keymask... not control or meta?");
}
 

public void mousePressed(final MouseEvent me) {
	if (display.isTransforming()) return;
	display.select(d, me.isShiftDown());
	if (me.isPopupTrigger() || (ij.IJ.isMacOSX() && me.isControlDown()) || MouseEvent.BUTTON2 == me.getButton() || 0 != (me.getModifiers() & Event.META_MASK)) {
		display.getPopupMenu().show(DisplayablePanel.this, me.getX(), me.getY());
	}
}
 

/** OS-agnostic diagnosis of whether the click was for the contextual popup menu. */
static public final boolean isPopupTrigger(final MouseEvent me) {
	// ImageJ way, in ij.gui.ImageCanvas class, plus an is-windows switch to prevent meta key from poping up for MacOSX
	return (me.isPopupTrigger() && me.getButton() != 0)  || (IJ.isWindows() && 0 != (me.getModifiers() & Event.META_MASK) );
}