public FpsCounterViewModel()
{
MouseDownUnit = new ReactivePropertySlim <Unit>(mode: ReactivePropertyMode.None).AddTo(CompositeDisposable);
// http://reactivex.io/documentation/operators/buffer.html
// Buffer(count, skip) : count個のデータが溜まったら、skip個ごとに count個をまとめた List<T> を流します
// Buffer(count) : countの倍数で、count個をまとめた List<T> を流します。
FpsCounter1 = MouseDownUnit
.Select(_ => DateTime.Now)
.Pairwise()
.Select(dateTime => dateTime.NewItem - dateTime.OldItem)
.Buffer(count: _bufferLength, skip: 1)
.Select(tss => 1000d / tss.Select(ts => ts.TotalMilliseconds).Average())
.ToReadOnlyReactivePropertySlim()
.AddTo(CompositeDisposable);
FpsCounter2 = MouseDownUnit
.TimeInterval()
.Buffer(count: _bufferLength, skip: 1)
.Select(xs => 1000d / xs.Select(x => x.Interval.Milliseconds).Average())
.ToReadOnlyReactivePropertySlim()
.AddTo(CompositeDisposable);
FpsCounter3 = MouseDownUnit
.Framerate(_bufferLength)
.ToReadOnlyReactivePropertySlim()
.AddTo(CompositeDisposable);
}
public SelectPointViewModel()
{
MouseLeftDownPoint = new ReactivePropertySlim <RoixBorderPoint>(mode: ReactivePropertyMode.None);
MouseMovePoint = new ReactivePropertySlim <RoixBorderPoint>();
ViewBorderSize = new ReactivePropertySlim <RoixSize>(mode: ReactivePropertyMode.DistinctUntilChanged);
var imageSourceSize = MyImage.ToRoixIntSize();
#region CursorPoint
CursorBorderPoint = MouseMovePoint.ToReadOnlyReactivePropertySlim();
CursorPointToModel = CursorBorderPoint
.Where(borderPoint => borderPoint.IsNotZero)
.Select(borderPoint => borderPoint.ConvertToNewBorderInt(imageSourceSize).Point)
.ToReadOnlyReactivePropertySlim();
#endregion
#region DoubleClickPoint
var eventAcceptedTime = DateTime.Now;
var mouseDoubleClickPoint = MouseLeftDownPoint
.TimeInterval()
.Skip(1)
.Where(ti =>
{
// 前回の MouseDown から一定時間が経過していればダブクリと言わない
if (ti.Interval > TimeSpan.FromMilliseconds(500))
{
return(false);
}
var now = DateTime.Now;
// 前回のダブクリ受付から一定時間が経過するまでは、次のダブクリを受け付けない
if (now - eventAcceptedTime < TimeSpan.FromMilliseconds(500))
{
return(false);
}
eventAcceptedTime = now; // ダブクリ受付時間の更新
return(true);
})
.Select(x => x.Value)
.ToReadOnlyReactivePropertySlim(mode: ReactivePropertyMode.None);
// 画像座標系の点(これを基準に管理する)
var selectedPointOnImage = mouseDoubleClickPoint
.Select(borderPoint =>
{
var borderInt = borderPoint.ConvertToNewBorderInt(imageSourceSize);
return(borderInt.ClipToSize(borderInt.Border - 1));
})
.ToReadOnlyReactivePropertySlim();
SinglePoint = selectedPointOnImage
.CombineLatest(ViewBorderSize, (intPoint, viewSize) =>
{
var leftTop = intPoint.ConvertToNewBorder(viewSize).Point;
var halfPixelSize = new RoixIntSize(1).ToRoixBorder(imageSourceSize).ConvertToNewBorder(viewSize).Size / 2d;
return(leftTop + (RoixVector)halfPixelSize); // 画素の中央部に点を打つためシフト
})
.ToReadOnlyReactivePropertySlim();
SinglePointToModel = selectedPointOnImage
.Where(borderPoint => borderPoint.Border.IsNotZero)
.Select(borderRectOnView => borderRectOnView.Point)
.ToReadOnlyReactivePropertySlim();
#endregion
}