ApparatusPanel.java 文件源码

/**
 * Sets up mouse and key listeners
 */
protected void setMouseAndKeyListeners( MouseInputListener mouseHandler, KeyListener keyAdapter ) {
    // Clear the old handlers
    MouseListener[] mouseListeners = this.getMouseListeners();
    for ( int i = 0; i < mouseListeners.length; i++ ) {
        MouseListener mouseListener = mouseListeners[i];
        this.removeMouseListener( mouseListener );
    }
    MouseMotionListener[] mouseMostionListeners = this.getMouseMotionListeners();
    for ( int i = 0; i < mouseMostionListeners.length; i++ ) {
        MouseMotionListener mouseMostionListener = mouseMostionListeners[i];
        this.removeMouseMotionListener( mouseMostionListener );
    }
    KeyListener[] keyListeners = this.getKeyListeners();
    for ( int i = 0; i < keyListeners.length; i++ ) {
        KeyListener keyListener = keyListeners[i];
        this.removeKeyListener( keyListener );
    }

    // Add the new handlers
    this.addMouseListener( mouseHandler );
    this.addMouseMotionListener( getGraphic().getMouseHandler() );
    this.addKeyListener( keyAdapter );
}