public static MaskDrawable Create(SvgMask svgMask, SKRect skViewport, DrawableBase?parent, IAssetLoader assetLoader, HashSet <Uri>?references, DrawAttributes ignoreAttributes = DrawAttributes.None)
{
var drawable = new MaskDrawable(assetLoader, references)
{
Element = svgMask,
Parent = parent,
IgnoreAttributes = ignoreAttributes,
IsDrawable = true
};
if (!drawable.IsDrawable)
{
return(drawable);
}
var maskUnits = svgMask.MaskUnits;
var maskContentUnits = svgMask.MaskContentUnits;
var xUnit = svgMask.X;
var yUnit = svgMask.Y;
var widthUnit = svgMask.Width;
var heightUnit = svgMask.Height;
// TODO: Pass correct skViewport
var skRectTransformed = SvgExtensions.CalculateRect(xUnit, yUnit, widthUnit, heightUnit, maskUnits, skViewport, skViewport, svgMask);
if (skRectTransformed is null)
{
drawable.IsDrawable = false;
return(drawable);
}
var skMatrix = SKMatrix.CreateIdentity();
if (maskContentUnits == SvgCoordinateUnits.ObjectBoundingBox)
{
var skBoundsTranslateTransform = SKMatrix.CreateTranslation(skViewport.Left, skViewport.Top);
skMatrix = skMatrix.PreConcat(skBoundsTranslateTransform);
var skBoundsScaleTransform = SKMatrix.CreateScale(skViewport.Width, skViewport.Height);
skMatrix = skMatrix.PreConcat(skBoundsScaleTransform);
}
drawable.CreateChildren(svgMask, skViewport, drawable, assetLoader, references, ignoreAttributes);
drawable.Initialize(skRectTransformed.Value, skMatrix);
return(drawable);
}
public static MaskDrawable Create(SvgMask svgMask, Rect skOwnerBounds, DrawableBase?parent, IAssetLoader assetLoader, Attributes ignoreAttributes = Attributes.None)
{
var drawable = new MaskDrawable(assetLoader)
{
Element = svgMask,
Parent = parent,
IgnoreAttributes = ignoreAttributes,
IsDrawable = true
};
if (!drawable.IsDrawable)
{
return(drawable);
}
var maskUnits = svgMask.MaskUnits;
var maskContentUnits = svgMask.MaskContentUnits;
var xUnit = svgMask.X;
var yUnit = svgMask.Y;
var widthUnit = svgMask.Width;
var heightUnit = svgMask.Height;
var x = xUnit.ToDeviceValue(UnitRenderingType.Horizontal, svgMask, skOwnerBounds);
var y = yUnit.ToDeviceValue(UnitRenderingType.Vertical, svgMask, skOwnerBounds);
var width = widthUnit.ToDeviceValue(UnitRenderingType.Horizontal, svgMask, skOwnerBounds);
var height = heightUnit.ToDeviceValue(UnitRenderingType.Vertical, svgMask, skOwnerBounds);
if (width <= 0 || height <= 0)
{
drawable.IsDrawable = false;
return(drawable);
}
if (maskUnits == SvgCoordinateUnits.ObjectBoundingBox)
{
if (xUnit.Type != SvgUnitType.Percentage)
{
x *= skOwnerBounds.Width;
}
if (yUnit.Type != SvgUnitType.Percentage)
{
y *= skOwnerBounds.Height;
}
if (widthUnit.Type != SvgUnitType.Percentage)
{
width *= skOwnerBounds.Width;
}
if (heightUnit.Type != SvgUnitType.Percentage)
{
height *= skOwnerBounds.Height;
}
x += skOwnerBounds.Left;
y += skOwnerBounds.Top;
}
var skRectTransformed = Rect.Create(x, y, width, height);
var skMatrix = Matrix.CreateIdentity();
if (maskContentUnits == SvgCoordinateUnits.ObjectBoundingBox)
{
var skBoundsTranslateTransform = Matrix.CreateTranslation(skOwnerBounds.Left, skOwnerBounds.Top);
skMatrix = skMatrix.PreConcat(skBoundsTranslateTransform);
var skBoundsScaleTransform = Matrix.CreateScale(skOwnerBounds.Width, skOwnerBounds.Height);
skMatrix = skMatrix.PreConcat(skBoundsScaleTransform);
}
drawable.CreateChildren(svgMask, skOwnerBounds, drawable, assetLoader, ignoreAttributes);
drawable.Overflow = skRectTransformed;
drawable.IsAntialias = SvgModelExtensions.IsAntialias(svgMask);
drawable.TransformedBounds = skRectTransformed;
drawable.Transform = skMatrix;
drawable.Fill = null;
drawable.Stroke = null;
// TODO: Transform _skBounds using _skMatrix.
drawable.TransformedBounds = drawable.Transform.MapRect(drawable.TransformedBounds);
return(drawable);
}
