private static LayoutTransformControl CreateWithChildAndMeasureAndTransform(
double width,
double height,
Transform transform)
{
var lt = new LayoutTransformControl()
{
LayoutTransform = transform,
Template = new FuncControlTemplate<LayoutTransformControl>(
p => new ContentPresenter() { Content = p.Content })
};
lt.Content = new Rectangle() { Width = width, Height = height };
lt.ApplyTemplate();
//we need to force create visual child
//so the measure after is correct
(lt.Presenter as ContentPresenter).UpdateChild();
Assert.NotNull(lt.Presenter?.Child);
lt.Measure(Size.Infinity);
lt.Arrange(new Rect(lt.DesiredSize));
return lt;
}
private static void TransformRootBoundsTest(Size size, Transform transform, Rect expectedBounds)
{
LayoutTransformControl lt = CreateWithChildAndMeasureAndTransform(size.Width, size.Height, transform);
Rect outBounds = lt.TransformRoot.Bounds;
Assert.Equal(outBounds.X, expectedBounds.X);
Assert.Equal(outBounds.Y, expectedBounds.Y);
Assert.Equal(outBounds.Width, expectedBounds.Width);
Assert.Equal(outBounds.Height, expectedBounds.Height);
}
public abstract void PushTransform(Transform transform);
private static void TransformMeasureSizeTest(Size size, Transform transform, Size expectedSize)
{
LayoutTransformControl lt = CreateWithChildAndMeasureAndTransform(
size.Width,
size.Height,
transform);
Size outSize = lt.DesiredSize;
Assert.Equal(outSize.Width, expectedSize.Width);
Assert.Equal(outSize.Height, expectedSize.Height);
}
public override void PushTransform(Transform transform)
{
Matrix3x2 m = transform.Value.ToSharpDX();
this.target.Transform = this.target.Transform * m;
this.stack.Push(m);
}