public EventToReactiveProperty2ViewModel()
{
// 前回と最新のマウス位置の差分を流す
MouseMovePoint
.Pairwise()
.Select(x => (x.NewItem - x.OldItem))
.SkipUntil(MouseDownUnit)
.TakeUntil(MouseUpUnit)
.Finally(() => DragPoint.Value = default)
private void MouseMoveHandler(object sender, MouseEventArgs e)
{
Control source = (Control)sender;
MouseButtons button = e.Button;
int clicks = e.Clicks;
int delta = e.Delta;
Point location = e.Location;
Point point2 = source.PointToScreen(location);
int inputMessageTime = UIUtil.GetInputMessageTime();
MouseMovePoint latestMovePoint = new MouseMovePoint(point2.X, point2.Y, inputMessageTime);
IList <MouseMovePoint> intermediateScreenPoints = GetIntermediateScreenPoints(this.previousMovePoint, latestMovePoint);
IList <PointDouble> intermediatePoints = this.ConvertIntermediateScreenPointsToDocument(source, intermediateScreenPoints);
this.previousMovePoint = new MouseMovePoint?(latestMovePoint);
this.MouseMoveHandlerImpl(intermediatePoints.Last <PointDouble>(), button, clicks, delta, intermediatePoints);
}
private static IList <MouseMovePoint> GetIntermediateScreenPoints(MouseMovePoint?previousMovePoint, MouseMovePoint latestMovePoint)
{
List <MouseMovePoint> list = new List <MouseMovePoint>();
if (previousMovePoint.HasValue)
{
IList <MouseMovePoint> collection = UIUtil.TryGetMouseMoveScreenPoints(previousMovePoint.Value, latestMovePoint);
if (collection != null)
{
list.AddRange(collection);
}
}
if (list.Count == 0)
{
list.Add(latestMovePoint);
}
return(list);
}
