ArmaDisplay.java 文件源码

public ArmaDisplay() {
    controlsMerged.add(getBackgroundControls());
    controlsMerged.add(getControls());

    displayProperties.add(iddProperty);

    displayProperties.addListener(new SetChangeListener<DisplayProperty>() {
        @Override
        public void onChanged(Change<? extends DisplayProperty> change) {
            if (change.wasRemoved() && change.getElementRemoved().getPropertyLookup() == DisplayPropertyLookup.IDD) {
                throw new IllegalStateException("can't remove idd from display");
            }
        }
    });

}