void setInMotion(boolean inMotion) {
		// MouseManager, TransformManager
		// Logger.debug("viewer.setInMotion("+inMotion+")");
		if (wasInMotion ^ inMotion) {
			if (inMotion)
				++motionEventNumber;
			repaintManager.setInMotion(inMotion);
			wasInMotion = inMotion;
		}
	}