private void evaluateDependencies() {
		boolean enabledMode = false;
		if (activeRegion != null) {
			if (activeRegion.isBoxValid()) {
				if ((activeRegion.startX % 2 == 0) && (activeRegion.startY % 2 == 0) && (activeRegion.endX % 2 == 0) && (activeRegion.endY % 2 == 0)) {
					enabledMode = true;
				}
			}
		}
		oamStampMenuItem.setEnabled(enabledMode);
	}