Method flush

ij/src/main/java/ij/ImagePlus.java:2598–2622

Sets the ImageProcessor, Roi, AWT Image and stack image arrays to null. Does nothing if the image is locked.

()

	/** Sets the ImageProcessor, Roi, AWT Image and stack image
		arrays to null. Does nothing if the image is locked. */
	public synchronized void flush() {
		notifyListeners(CLOSED);
		if (locked || ignoreFlush) return;
		ip = null;
		if (roi!=null) roi.setImage(null);
		roi = null;
		if (stack!=null && stack.viewers(-1)<=0) {
			Object[] arrays = stack.getImageArray();
			if (arrays!=null) {
				for (int i=0; i<arrays.length; i++)
					arrays[i] = null;
			}
			if (isComposite())
				((CompositeImage)this).setChannelsUpdated(); //flush
		}
		setStackNull();
		img = null;
		win = null;
		if (roi!=null) roi.setImage(null);
		roi = null;
		properties = null;
		//calibration = null;
		overlay = null;
		flatteningCanvas = null;
	}

	public void setIgnoreFlush(boolean ignoreFlush) {
		this.ignoreFlush = ignoreFlush;