/// <summary>
/// Called when one of the dependency properties has changed.
/// </summary>
protected override async void OnPropertyChanged(DependencyPropertyChangedEventArgs e)
{
base.OnPropertyChanged(e);
if (!GraphicsCore.IsInitialized)
{
return;
}
if (this.IsInDesignMode())
{
return;
}
if (e.Property == SeeingSharpRendererElement.SceneProperty)
{
m_renderLoop.SetScene(this.Scene);
SceneChanged.Raise(this, EventArgs.Empty);
}
else if (e.Property == SeeingSharpRendererElement.CameraProperty)
{
m_renderLoop.Camera = this.Camera;
CameraChanged.Raise(this, EventArgs.Empty);
}
else if (e.Property == SeeingSharpRendererElement.DrawingLayer2DProperty)
{
if (e.OldValue != null)
{
await m_renderLoop.Deregister2DDrawingLayerAsync(e.OldValue as Custom2DDrawingLayer);
}
if (e.NewValue != null)
{
await m_renderLoop.Register2DDrawingLayerAsync(e.NewValue as Custom2DDrawingLayer);
}
DrawingLayer2DChanged.Raise(this, EventArgs.Empty);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="SeeingSharpRendererControl"/> class.
/// </summary>
public SeeingSharpRendererControl()
{
//Set style parameters for this control
base.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
base.SetStyle(ControlStyles.ResizeRedraw, true);
base.SetStyle(ControlStyles.OptimizedDoubleBuffer, false);
base.SetStyle(ControlStyles.Opaque, true);
base.SetStyle(ControlStyles.Selectable, true);
base.DoubleBuffered = false;
//Create the render loop
GraphicsCore.Touch();
m_renderLoop = new RenderLoop(SynchronizationContext.Current, this, this.DesignMode);
m_renderLoop.ManipulateFilterList += OnRenderLoopManipulateFilterList;
m_renderLoop.ClearColor = new Color4(this.BackColor);
m_renderLoop.DiscardRendering = true;
this.Disposed += (sender, eArgs) =>
{
m_renderLoop.Dispose();
};
// Perform default initialization logic (if not called before)
if (SeeingSharpApplication.IsInitialized)
{
m_renderLoop.SetScene(new Scene());
m_renderLoop.Camera = new PerspectiveCamera3D();
//Observe resize event and throttle them
this.HandleCreateDisposeOnControl(
() => Observable.FromEventPattern(this, "Resize")
.Merge(Observable.FromEventPattern(m_renderLoop.ViewConfiguration, "ConfigurationChanged"))
.Throttle(TimeSpan.FromSeconds(0.5))
.ObserveOn(SynchronizationContext.Current)
.Subscribe((eArgs) => OnThrottledViewRecreation()));
//Initialize background brush
UpdateDrawingResourcesForFailoverRendering();
// Observe mouse click event
this.HandleCreateDisposeOnControl(() =>
{
var mouseDownEvent = Observable.FromEventPattern <MouseEventArgs>(this, "MouseDown");
var mouseUpEvent = Observable.FromEventPattern <MouseEventArgs>(this, "MouseUp");
var mouseClick = from down in mouseDownEvent
let timeStampDown = DateTime.UtcNow
from up in mouseUpEvent
where up.EventArgs.Button == down.EventArgs.Button
let timeStampUp = DateTime.UtcNow
where timeStampUp - timeStampDown < TimeSpan.FromMilliseconds(200.0)
select new { Down = down, Up = up };
return(mouseClick.Subscribe((givenItem) =>
{
MouseClickEx.Raise(this, givenItem.Up.EventArgs);
}));
});
}
this.Disposed += OnDisposed;
UpdateDrawingResourcesForFailoverRendering();
}
