public override void ApplyState()
{
base.ApplyState();
if (!Source.Masking && (Source.BorderThickness != 0.0f || edgeEffect.Type != EdgeEffectType.None))
{
throw new InvalidOperationException("Can not have border effects/edge effects if masking is disabled.");
}
Vector3 scale = DrawInfo.MatrixInverse.ExtractScale();
maskingInfo = !Source.Masking
? (MaskingInfo?)null
: new MaskingInfo
{
ScreenSpaceAABB = Source.ScreenSpaceDrawQuad.AABB,
MaskingRect = Source.DrawRectangle,
ToMaskingSpace = DrawInfo.MatrixInverse,
CornerRadius = Source.CornerRadius,
BorderThickness = Source.BorderThickness,
BorderColour = Source.BorderColour,
// We are setting the linear blend range to the approximate size of a _pixel_ here.
// This results in the optimal trade-off between crispness and smoothness of the
// edges of the masked region according to sampling theory.
BlendRange = Source.MaskingSmoothness * (scale.X + scale.Y) / 2,
AlphaExponent = 1,
};
edgeEffect = Source.EdgeEffect;
screenSpaceMaskingQuad = null;
Shader = Source.Shader;
forceLocalVertexBatch = Source.ForceLocalVertexBatch;
}
public override void ApplyState()
{
base.ApplyState();
if (!Source.Masking && (Source.BorderThickness != 0.0f || Source.EdgeEffect.Type != EdgeEffectType.None))
{
throw new InvalidOperationException("Can not have border effects/edge effects if masking is disabled.");
}
Vector3 scale = DrawInfo.MatrixInverse.ExtractScale();
float blendRange = Source.MaskingSmoothness * (scale.X + scale.Y) / 2;
// Calculate a shrunk rectangle which is free from corner radius/smoothing/border effects
float shrinkage = Source.CornerRadius - Source.CornerRadius * cos_45 + blendRange + Source.borderThickness;
// Normalise to handle negative sizes, and clamp the shrinkage to prevent size from going negative.
RectangleF shrunkDrawRectangle = Source.DrawRectangle.Normalize();
shrunkDrawRectangle = shrunkDrawRectangle.Shrink(new Vector2(Math.Min(shrunkDrawRectangle.Width / 2, shrinkage), Math.Min(shrunkDrawRectangle.Height / 2, shrinkage)));
maskingInfo = !Source.Masking
? (MaskingInfo?)null
: new MaskingInfo
{
ScreenSpaceAABB = Source.ScreenSpaceDrawQuad.AABB,
MaskingRect = Source.DrawRectangle.Normalize(),
ConservativeScreenSpaceQuad = Quad.FromRectangle(shrunkDrawRectangle) * DrawInfo.Matrix,
ToMaskingSpace = DrawInfo.MatrixInverse,
CornerRadius = Source.effectiveCornerRadius,
CornerExponent = Source.CornerExponent,
BorderThickness = Source.BorderThickness,
BorderColour = Source.BorderColour,
// We are setting the linear blend range to the approximate size of a _pixel_ here.
// This results in the optimal trade-off between crispness and smoothness of the
// edges of the masked region according to sampling theory.
BlendRange = blendRange,
AlphaExponent = 1,
};
edgeEffect = Source.EdgeEffect;
screenSpaceMaskingQuad = null;
Shader = Source.Shader;
forceLocalVertexBatch = Source.ForceLocalVertexBatch;
sourceChildrenCount = Source.internalChildren.Count;
}
