public static ImageSource GetImageFromDimensions(DimensionsViewModel dimensions)
{
MandelbrotFractal fractal = new MandelbrotFractal
(dimensions.Width,
dimensions.Height,
dimensions.Iterations,
dimensions.Left,
dimensions.Right,
dimensions.Top,
dimensions.Bottom);
return fractal.GetImage(fractal._MaxIterations);
}
protected bool Equals(DimensionsViewModel other)
{
return _Left.Equals(other._Left) && _Right.Equals(other._Right) && _Top.Equals(other._Top) && _Bottom.Equals(other._Bottom) && _Iterations == other._Iterations && _Width == other._Width && _Height == other._Height;
}
public MapViewModel(IObservable<SelectionViewModel> selection)
{
this.Dimensions = new DimensionsViewModel();
selection.Subscribe(x => this.Selection = x);
// Doesn't work..
//selection.BindTo(this, x => x.Selection);
this.WhenAny(x => x.Dimensions.Iterations,
x => x.Selection,
(iterations, selectedArea) => selectedArea.Value)
.Where(x => x != null)
.Select(x => Dimensions.GetSelectionDimensions(x))
.ToProperty(this, x => x.PreviewDimensions);
this.WhenAny(x => x.PreviewDimensions,
x => x.Value)
.Throttle(TimeSpan.FromSeconds(1))
.ObserveOnDispatcher()
.Where(x => x != null)
.Select(x =>
MandelbrotFractal.GetImageFromDimensions(x))
.ToProperty(this, x => x.Preview);
this.WhenAny(x => x.Dimensions,
x => x.Value)
.Select(x => new MandelbrotFractal(_Dimensions.Width, _Dimensions.Height,
_Dimensions.Iterations, _Dimensions.Left,
_Dimensions.Right, _Dimensions.Top,
_Dimensions.Bottom))
.ToProperty(this,
x => x.Fractal);
this.WhenAny(x => x.Dimensions.Iterations,
x => x.Fractal,
(x, dimensions) => x.Value).
Throttle(TimeSpan.FromSeconds(1)).
ObserveOnDispatcher().
Select(x => Fractal.GetImage(x))
.ToProperty(this, x => x.Output);
this.ZoomCommand =
new ReactiveCommand(this.WhenAny(x => x.Selection,
x => x.Value).Select(x => x != null));
this.ZoomCommand.Subscribe(x =>
{
Dimensions = new DimensionsViewModel()
{
Height = Dimensions.Height,
Width = Dimensions.Width,
Iterations = Dimensions.Iterations,
Bottom = PreviewDimensions.Bottom,
Top = PreviewDimensions.Top,
Left = PreviewDimensions.Left,
Right = PreviewDimensions.Right
};
Selection = null;
});
}
