ToggleTool.java 文件源码

private KeyUpHandler setEscapeHandler() {
    KeyUpHandler handler = new KeyUpHandler() {
        @Override
        public void onKeyUp(final KeyUpEvent event) {
            if (KeyCodes.KEY_ESCAPE == event.getNativeEvent().getKeyCode()) {
                for (Control control : controls) {
                    try {
                        ((DrawFeature) control).cancel();
                    } catch (Exception e) {
                        LOGGER.error("ACTION CANCELED: "
                                + control.getControlId());
                    }
                }
            }
        }
    };
    return handler;
}