AbstractLine.java 文件源码

/**
 * This method sets the open state and generates
 * events if it changes.
 */
final void setOpen(boolean open) {

    if (Printer.trace) Printer.trace("> "+getClass().getName()+" (AbstractLine): setOpen(" + open + ")  this.open: " + this.open);

    boolean sendEvents = false;
    long position = getLongFramePosition();

    synchronized (this) {
        if (this.open != open) {
            this.open = open;
            sendEvents = true;
        }
    }

    if (sendEvents) {
        if (open) {
            sendEvents(new LineEvent(this, LineEvent.Type.OPEN, position));
        } else {
            sendEvents(new LineEvent(this, LineEvent.Type.CLOSE, position));
        }
    }
    if (Printer.trace) Printer.trace("< "+getClass().getName()+" (AbstractLine): setOpen(" + open + ")  this.open: " + this.open);
}