public static extern InteropBool WindowFactory_AlterViewport(
IntPtr failReason,
ViewportHandle viewportHandle,
uint topLeftX,
uint topLeftY,
uint widthPx,
uint heightPx
);
// No lock on WindowTarget.WindowMutationLock here because it's an internal method, only accessible from Window.AddViewport.
// If that changes in the future, add a lock!
internal SceneViewport(Window targetWindow, ViewportAnchoring anchoring, Vector2 anchorOffset, Vector2 size,
float nearPlaneDist, float farPlaneDist)
{
if (targetWindow == null)
{
throw new ArgumentNullException("targetWindow");
}
if (!Enum.IsDefined(typeof(ViewportAnchoring), anchoring))
{
throw new ArgumentException("Invalid enum value.", "anchoring");
}
//if (anchorOffset.X < 0f || anchorOffset.X > 1f || anchorOffset.Y < 0f || anchorOffset.Y > 1f) {
// throw new ArgumentException("Both anchor offset dimensions must be between 0f and 1f.", "anchorOffset");
//}
//if (size.X < 0f || size.X > 1f - anchorOffset.X || size.Y < 0f || size.Y > 1f - anchorOffset.Y) {
// throw new ArgumentException("combination of size and anchor offset in either dimension must be between 0f and 1f.", "size");
//}
if (nearPlaneDist <= 0f)
{
throw new ArgumentException("Near plane must be greater than 0f.", "nearPlaneDist");
}
if (farPlaneDist <= 0f)
{
throw new ArgumentException("Far plane must be greater than 0f.", "farPlaneDist");
}
this.TargetWindow = targetWindow;
this.Anchoring = anchoring;
this.AnchorOffset = anchorOffset;
this.Size = size;
this.NearPlaneDist = nearPlaneDist;
this.FarPlaneDist = farPlaneDist;
if (targetWindow.IsClosed)
{
ViewportHandle = ViewportHandle.NULL;
isDisposed = true;
}
else
{
ViewportHandle outViewportHandle;
unsafe {
InteropUtils.CallNative(NativeMethods.WindowFactory_CreateViewport,
(IntPtr)(&outViewportHandle)
).ThrowOnFailure();
}
ViewportHandle = outViewportHandle;
}
TargetWindow_WindowResized(TargetWindow, TargetWindow.Width, TargetWindow.Height);
TargetWindow.WindowResized += TargetWindow_WindowResized;
}
public static extern InteropBool WindowFactory_DestroyViewport(
IntPtr failReason,
ViewportHandle viewportHandle
);
