public void collectMousePositions()
{
void exitAnnotation(_TrackedAnnotation trackedAnnotation, int deviceId)
{
if (trackedAnnotation.annotation?.onExit != null &&
trackedAnnotation.activeDevices.Contains(deviceId))
{
trackedAnnotation.annotation.onExit(PointerExitEvent.fromHoverEvent(this._lastMouseEvent[deviceId]));
trackedAnnotation.activeDevices.Remove(deviceId);
}
}
void exitAllDevices(_TrackedAnnotation trackedAnnotation)
{
if (trackedAnnotation.activeDevices.isNotEmpty())
{
HashSet <int> deviceIds = new HashSet <int>(trackedAnnotation.activeDevices);
foreach (int deviceId in deviceIds)
{
exitAnnotation(trackedAnnotation, deviceId);
}
}
}
if (!this.mouseIsConnected)
{
foreach (var annotation in this._trackedAnnotations.Values)
{
exitAllDevices(annotation);
}
return;
}
foreach (int deviceId in this._lastMouseEvent.Keys)
{
PointerEvent lastEvent = this._lastMouseEvent[deviceId];
MouseTrackerAnnotation hit = this.annotationFinder(lastEvent.position);
if (hit == null)
{
foreach (_TrackedAnnotation trackedAnnotation in this._trackedAnnotations.Values)
{
exitAnnotation(trackedAnnotation, deviceId);
}
return;
}
_TrackedAnnotation hitAnnotation = this._findAnnotation(hit);
//enter
if (!hitAnnotation.activeDevices.Contains(deviceId))
{
hitAnnotation.activeDevices.Add(deviceId);
if (hitAnnotation.annotation?.onEnter != null)
{
hitAnnotation.annotation.onEnter(PointerEnterEvent.fromHoverEvent(lastEvent));
}
}
//hover
if (hitAnnotation.annotation?.onHover != null)
{
hitAnnotation.annotation.onHover(PointerHoverEvent.fromHoverEvent(lastEvent));
}
//leave
foreach (_TrackedAnnotation trackedAnnotation in this._trackedAnnotations.Values)
{
if (hitAnnotation == trackedAnnotation)
{
continue;
}
if (trackedAnnotation.activeDevices.Contains(deviceId))
{
if (trackedAnnotation.annotation?.onExit != null)
{
trackedAnnotation.annotation.onExit(PointerExitEvent.fromHoverEvent((PointerHoverEvent)lastEvent));
}
trackedAnnotation.activeDevices.Remove(deviceId);
}
}
}
}
public static PointerExitEvent fromHoverEvent(PointerHoverEvent e)
{
return(fromMouseEvent(e));
}