/**
* Add the correct event button types to the set according to the mouse event.
*
* @param event the mouse event
* @param types the set of types
* @throws NullPointerException if event or types is null
*/
public static void addButtonTypes(final ProxyMouseEvent event, final Set<CameraEventType> types) {
// process the button number
switch (event.getButton()) {
case WHEEL:
if (event.getWheelRotation() < 0) {
types.add(CameraEventType.WHEEL_UP);
} else if (event.getWheelRotation() > 0) {
types.add(CameraEventType.WHEEL_DOWN);
} else {
types.add(CameraEventType.NONE);
}
break;
case BUTTON1:
types.add(CameraEventType.LEFT);
break;
case BUTTON2:
types.add(CameraEventType.MIDDLE);
break;
case BUTTON3:
types.add(CameraEventType.RIGHT);
break;
default:
types.add(CameraEventType.NONE);
break;
}
}
/**
* Add the correct event modifier types to the set according to the mouse event.
*
* @param event the mouse event
* @param types the set of types
* @throws NullPointerException if event or types is null
*/
public static void addModifierTypes(
final ProxyMouseEvent event, final Set<CameraEventType> types) {
// process modifier keys
if (event.isAltDown()) {
types.add(CameraEventType.ALT);
}
if (event.isControlDown()) {
types.add(CameraEventType.CTRL);
}
if (event.isShiftDown()) {
types.add(CameraEventType.SHIFT);
}
}
/**
* Create a new camera event.
*
* @param camera camera that generated the event
* @param event the mouse event
* @return the new camera event
* @throws NullPointerException if event is null
*/
public static CameraEvent newCameraEvent(final Camera camera, final ProxyMouseEvent event) {
final Set<CameraEventType> types = EnumSet.noneOf(CameraEventType.class);
ProxyCameraUtils.addButtonTypes(event, types);
ProxyCameraUtils.addModifierTypes(event, types);
final CameraEvent pickEvent =
new CameraEvent(
camera,
event.getX(),
event.getY(),
Math.max(event.getClickCount(), Math.abs(event.getWheelRotation())),
types);
return pickEvent;
}
/**
* Get the button for the supplied event.
*
* @param event the mouse event
* @return the button
* @throws NullPointerException if event is null
*/
public static CameraEventType getButton(final ProxyMouseEvent event) {
switch (event.getButton()) {
case BUTTON1:
return CameraEventType.LEFT;
case BUTTON2:
return CameraEventType.MIDDLE;
case BUTTON3:
return CameraEventType.RIGHT;
default:
return CameraEventType.NONE;
}
}