public static SKPath?GetClipPathClipPath(SvgClipPath svgClipPath, SKRect skBounds, HashSet <Uri> uris, CompositeDisposable disposable)
{
var svgClipPathRef = svgClipPath.GetUriElementReference <SvgClipPath>("clip-path", uris);
if (svgClipPathRef == null || svgClipPathRef.Children == null)
{
return(null);
}
var clipPath = GetClipPath(svgClipPathRef, skBounds, uris, disposable);
if (clipPath != null)
{
var skMatrix = SKMatrix.MakeIdentity();
if (svgClipPathRef.ClipPathUnits == SvgCoordinateUnits.ObjectBoundingBox)
{
var skScaleMatrix = SKMatrix.MakeScale(skBounds.Width, skBounds.Height);
skMatrix = skMatrix.PostConcat(skScaleMatrix);
var skTranslateMatrix = SKMatrix.MakeTranslation(skBounds.Left, skBounds.Top);
skMatrix = skMatrix.PostConcat(skTranslateMatrix);
}
var skTransformsMatrix = SvgTransformsExtensions.ToSKMatrix(svgClipPathRef.Transforms);
skMatrix = skMatrix.PostConcat(skTransformsMatrix);
clipPath.Transform(skMatrix);
}
return(clipPath);
}
public SwitchDrawable(SvgSwitch svgSwitch, SKRect skOwnerBounds, Drawable?root, Drawable?parent, Attributes ignoreAttributes = Attributes.None)
: base(svgSwitch, root, parent)
{
IgnoreAttributes = ignoreAttributes;
IsDrawable = CanDraw(svgSwitch, IgnoreAttributes) && HasFeatures(svgSwitch, IgnoreAttributes);
if (!IsDrawable)
{
return;
}
foreach (var child in svgSwitch.Children)
{
if (!IsKnownElement(child))
{
continue;
}
bool hasRequiredFeatures = HasRequiredFeatures(child);
bool hasRequiredExtensions = HasRequiredExtensions(child);
bool hasSystemLanguage = HasSystemLanguage(child);
if (hasRequiredFeatures && hasRequiredExtensions && hasSystemLanguage)
{
//var ignoreAttributesSwitch = ignoreAttributes
// | Attributes.Visibility
// | Attributes.Display
// | Attributes.RequiredFeatures
// | Attributes.RequiredExtensions
// | Attributes.SystemLanguage;
var drawable = DrawableFactory.Create(child, skOwnerBounds, root, parent, ignoreAttributes);
if (drawable != null)
{
FirstChild = drawable;
_disposable.Add(FirstChild);
}
break;
}
}
if (FirstChild == null)
{
IsDrawable = false;
return;
}
IsAntialias = SvgPaintingExtensions.IsAntialias(svgSwitch);
TransformedBounds = FirstChild.TransformedBounds;
Transform = SvgTransformsExtensions.ToSKMatrix(svgSwitch.Transforms);
Fill = null;
Stroke = null;
// TODO: Transform _skBounds using _skMatrix.
TransformedBounds = Transform.MapRect(TransformedBounds);
}
public PolylineDrawable(SvgPolyline svgPolyline, SKRect skOwnerBounds, Drawable?root, Drawable?parent, Attributes ignoreAttributes = Attributes.None)
: base(svgPolyline, root, parent)
{
IgnoreAttributes = ignoreAttributes;
IsDrawable = CanDraw(svgPolyline, IgnoreAttributes) && HasFeatures(svgPolyline, IgnoreAttributes);
if (!IsDrawable)
{
return;
}
Path = svgPolyline.Points?.ToSKPath(svgPolyline.FillRule, false, skOwnerBounds, _disposable);
if (Path == null || Path.IsEmpty)
{
IsDrawable = false;
return;
}
IsAntialias = SvgPaintingExtensions.IsAntialias(svgPolyline);
TransformedBounds = Path.Bounds;
Transform = SvgTransformsExtensions.ToSKMatrix(svgPolyline.Transforms);
bool canDrawFill = true;
bool canDrawStroke = true;
if (SvgPaintingExtensions.IsValidFill(svgPolyline))
{
Fill = SvgPaintingExtensions.GetFillSKPaint(svgPolyline, TransformedBounds, ignoreAttributes, _disposable);
if (Fill == null)
{
canDrawFill = false;
}
}
if (SvgPaintingExtensions.IsValidStroke(svgPolyline, TransformedBounds))
{
Stroke = SvgPaintingExtensions.GetStrokeSKPaint(svgPolyline, TransformedBounds, ignoreAttributes, _disposable);
if (Stroke == null)
{
canDrawStroke = false;
}
}
if (canDrawFill && !canDrawStroke)
{
IsDrawable = false;
return;
}
SvgMarkerExtensions.CreateMarkers(svgPolyline, Path, skOwnerBounds, ref MarkerDrawables, _disposable);
// TODO: Transform _skBounds using _skMatrix.
TransformedBounds = Transform.MapRect(TransformedBounds);
}
public static SKPath?GetClipPath(SvgClipPath svgClipPath, SKRect skBounds, HashSet <Uri> uris, CompositeDisposable disposable)
{
var skPathClip = default(SKPath);
var clipPathClipPath = GetClipPathClipPath(svgClipPath, skBounds, uris, disposable);
if (clipPathClipPath != null && !clipPathClipPath.IsEmpty)
{
skPathClip = clipPathClipPath;
}
var clipPath = GetClipPath(svgClipPath.Children, skBounds, uris, disposable);
if (clipPath != null)
{
var skMatrix = SKMatrix.MakeIdentity();
if (svgClipPath.ClipPathUnits == SvgCoordinateUnits.ObjectBoundingBox)
{
var skScaleMatrix = SKMatrix.MakeScale(skBounds.Width, skBounds.Height);
SKMatrix.PostConcat(ref skMatrix, ref skScaleMatrix);
var skTranslateMatrix = SKMatrix.MakeTranslation(skBounds.Left, skBounds.Top);
SKMatrix.PostConcat(ref skMatrix, ref skTranslateMatrix);
}
var skTransformsMatrix = SvgTransformsExtensions.ToSKMatrix(svgClipPath.Transforms);
SKMatrix.PostConcat(ref skMatrix, ref skTransformsMatrix);
clipPath.Transform(skMatrix);
if (skPathClip == null)
{
skPathClip = clipPath;
}
else
{
var result = skPathClip.Op(clipPath, SKPathOp.Intersect);
disposable.Add(result);
skPathClip = result;
}
}
if (skPathClip == null)
{
skPathClip = new SKPath();
disposable.Add(skPathClip);
}
return(skPathClip);
}
public GroupDrawable(SvgGroup svgGroup, SKRect skOwnerBounds, Drawable?root, Drawable?parent, Attributes ignoreAttributes = Attributes.None)
: base(svgGroup, root, parent)
{
IgnoreAttributes = ignoreAttributes;
IsDrawable = CanDraw(svgGroup, IgnoreAttributes) && HasFeatures(svgGroup, IgnoreAttributes);
// NOTE: Call AddMarkers only once.
SvgMarkerExtensions.AddMarkers(svgGroup);
CreateChildren(svgGroup, skOwnerBounds, root, this, ignoreAttributes);
// TODO: Check if children are explicitly set to be visible.
//foreach (var child in ChildrenDrawables)
//{
// if (child.IsDrawable)
// {
// IsDrawable = true;
// break;
// }
//}
if (!IsDrawable)
{
return;
}
IsAntialias = SvgPaintingExtensions.IsAntialias(svgGroup);
TransformedBounds = SKRect.Empty;
CreateTransformedBounds();
Transform = SvgTransformsExtensions.ToSKMatrix(svgGroup.Transforms);
Fill = null;
Stroke = null;
// TODO: Transform _skBounds using _skMatrix.
TransformedBounds = Transform.MapRect(TransformedBounds);
}
public static SKPath?GetClipPath(SvgVisualElement svgVisualElement, SKRect skBounds, HashSet <Uri> uris, CompositeDisposable disposable)
{
if (!CanDraw(svgVisualElement, Attributes.None))
{
return(null);
}
switch (svgVisualElement)
{
case SvgPath svgPath:
{
var fillRule = (svgPath.ClipRule == SvgClipRule.EvenOdd) ? SvgFillRule.EvenOdd : SvgFillRule.NonZero;
var skPath = svgPath.PathData?.ToSKPath(fillRule, disposable);
if (skPath != null)
{
var skMatrix = SvgTransformsExtensions.ToSKMatrix(svgPath.Transforms);
skPath.Transform(skMatrix);
var skPathClip = GetSvgVisualElementClipPath(svgPath, skPath.Bounds, uris, disposable);
if (skPathClip != null)
{
var result = skPath.Op(skPathClip, SKPathOp.Intersect);
disposable.Add(result);
return(result);
}
return(skPath);
}
}
break;
case SvgRectangle svgRectangle:
{
var fillRule = (svgRectangle.ClipRule == SvgClipRule.EvenOdd) ? SvgFillRule.EvenOdd : SvgFillRule.NonZero;
var skPath = svgRectangle.ToSKPath(fillRule, skBounds, disposable);
if (skPath != null)
{
var skMatrix = SvgTransformsExtensions.ToSKMatrix(svgRectangle.Transforms);
skPath.Transform(skMatrix);
var skPathClip = GetSvgVisualElementClipPath(svgRectangle, skPath.Bounds, uris, disposable);
if (skPathClip != null)
{
var result = skPath.Op(skPathClip, SKPathOp.Intersect);
disposable.Add(result);
return(result);
}
return(skPath);
}
}
break;
case SvgCircle svgCircle:
{
var fillRule = (svgCircle.ClipRule == SvgClipRule.EvenOdd) ? SvgFillRule.EvenOdd : SvgFillRule.NonZero;
var skPath = svgCircle.ToSKPath(fillRule, skBounds, disposable);
if (skPath != null)
{
var skMatrix = SvgTransformsExtensions.ToSKMatrix(svgCircle.Transforms);
skPath.Transform(skMatrix);
var skPathClip = GetSvgVisualElementClipPath(svgCircle, skPath.Bounds, uris, disposable);
if (skPathClip != null)
{
var result = skPath.Op(skPathClip, SKPathOp.Intersect);
disposable.Add(result);
return(result);
}
return(skPath);
}
}
break;
case SvgEllipse svgEllipse:
{
var fillRule = (svgEllipse.ClipRule == SvgClipRule.EvenOdd) ? SvgFillRule.EvenOdd : SvgFillRule.NonZero;
var skPath = svgEllipse.ToSKPath(fillRule, skBounds, disposable);
if (skPath != null)
{
var skMatrix = SvgTransformsExtensions.ToSKMatrix(svgEllipse.Transforms);
skPath.Transform(skMatrix);
var skPathClip = GetSvgVisualElementClipPath(svgEllipse, skPath.Bounds, uris, disposable);
if (skPathClip != null)
{
var result = skPath.Op(skPathClip, SKPathOp.Intersect);
disposable.Add(result);
return(result);
}
return(skPath);
}
}
break;
case SvgLine svgLine:
{
var fillRule = (svgLine.ClipRule == SvgClipRule.EvenOdd) ? SvgFillRule.EvenOdd : SvgFillRule.NonZero;
var skPath = svgLine.ToSKPath(fillRule, skBounds, disposable);
if (skPath != null)
{
var skMatrix = SvgTransformsExtensions.ToSKMatrix(svgLine.Transforms);
skPath.Transform(skMatrix);
var skPathClip = GetSvgVisualElementClipPath(svgLine, skPath.Bounds, uris, disposable);
if (skPathClip != null)
{
var result = skPath.Op(skPathClip, SKPathOp.Intersect);
disposable.Add(result);
return(result);
}
return(skPath);
}
}
break;
case SvgPolyline svgPolyline:
{
var fillRule = (svgPolyline.ClipRule == SvgClipRule.EvenOdd) ? SvgFillRule.EvenOdd : SvgFillRule.NonZero;
var skPath = svgPolyline.Points?.ToSKPath(fillRule, false, skBounds, disposable);
if (skPath != null)
{
var skMatrix = SvgTransformsExtensions.ToSKMatrix(svgPolyline.Transforms);
skPath.Transform(skMatrix);
var skPathClip = GetSvgVisualElementClipPath(svgPolyline, skPath.Bounds, uris, disposable);
if (skPathClip != null)
{
var result = skPath.Op(skPathClip, SKPathOp.Intersect);
disposable.Add(result);
return(result);
}
return(skPath);
}
}
break;
case SvgPolygon svgPolygon:
{
var fillRule = (svgPolygon.ClipRule == SvgClipRule.EvenOdd) ? SvgFillRule.EvenOdd : SvgFillRule.NonZero;
var skPath = svgPolygon.Points?.ToSKPath(fillRule, true, skBounds, disposable);
if (skPath != null)
{
var skMatrix = SvgTransformsExtensions.ToSKMatrix(svgPolygon.Transforms);
skPath.Transform(skMatrix);
var skPathClip = GetSvgVisualElementClipPath(svgPolygon, skPath.Bounds, uris, disposable);
if (skPathClip != null)
{
var result = skPath.Op(skPathClip, SKPathOp.Intersect);
disposable.Add(result);
return(result);
}
return(skPath);
}
}
break;
case SvgUse svgUse:
{
if (SvgExtensions.HasRecursiveReference(svgUse, (e) => e.ReferencedElement, new HashSet <Uri>()))
{
break;
}
var svgReferencedVisualElement = SvgExtensions.GetReference <SvgVisualElement>(svgUse, svgUse.ReferencedElement);
if (svgReferencedVisualElement == null || svgReferencedVisualElement is SvgSymbol)
{
break;
}
if (!CanDraw(svgReferencedVisualElement, Attributes.None))
{
break;
}
var skPath = GetClipPath(svgReferencedVisualElement, skBounds, uris, disposable);
if (skPath != null)
{
var skMatrix = SvgTransformsExtensions.ToSKMatrix(svgUse.Transforms);
skPath.Transform(skMatrix);
var skPathClip = GetSvgVisualElementClipPath(svgUse, skPath.Bounds, uris, disposable);
if (skPathClip != null)
{
var result = skPath.Op(skPathClip, SKPathOp.Intersect);
disposable.Add(result);
return(result);
}
return(skPath);
}
}
break;
case SvgText svgText:
{
// TODO: Get path from SvgText.
}
break;
default:
break;
}
return(null);
}
public MarkerDrawable(SvgMarker svgMarker, SvgVisualElement pOwner, SKPoint pMarkerPoint, float fAngle, SKRect skOwnerBounds, Drawable?root, Drawable?parent, Attributes ignoreAttributes = Attributes.None)
: base(svgMarker, root, parent)
{
IgnoreAttributes = Attributes.Display | ignoreAttributes;
IsDrawable = true;
if (!IsDrawable)
{
return;
}
var markerElement = GetMarkerElement(svgMarker);
if (markerElement == null)
{
IsDrawable = false;
return;
}
var skMarkerMatrix = SKMatrix.MakeIdentity();
var skMatrixMarkerPoint = SKMatrix.MakeTranslation(pMarkerPoint.X, pMarkerPoint.Y);
skMarkerMatrix = skMarkerMatrix.PreConcat(skMatrixMarkerPoint);
var skMatrixAngle = SKMatrix.MakeRotationDegrees(svgMarker.Orient.IsAuto ? fAngle : svgMarker.Orient.Angle);
skMarkerMatrix = skMarkerMatrix.PreConcat(skMatrixAngle);
var strokeWidth = pOwner.StrokeWidth.ToDeviceValue(UnitRenderingType.Other, svgMarker, skOwnerBounds);
var refX = svgMarker.RefX.ToDeviceValue(UnitRenderingType.Horizontal, svgMarker, skOwnerBounds);
var refY = svgMarker.RefY.ToDeviceValue(UnitRenderingType.Vertical, svgMarker, skOwnerBounds);
float markerWidth = svgMarker.MarkerWidth.ToDeviceValue(UnitRenderingType.Other, svgMarker, skOwnerBounds);
float markerHeight = svgMarker.MarkerHeight.ToDeviceValue(UnitRenderingType.Other, svgMarker, skOwnerBounds);
float viewBoxToMarkerUnitsScaleX = 1f;
float viewBoxToMarkerUnitsScaleY = 1f;
switch (svgMarker.MarkerUnits)
{
case SvgMarkerUnits.StrokeWidth:
{
var skMatrixStrokeWidth = SKMatrix.MakeScale(strokeWidth, strokeWidth);
skMarkerMatrix = skMarkerMatrix.PreConcat(skMatrixStrokeWidth);
var viewBoxWidth = svgMarker.ViewBox.Width;
var viewBoxHeight = svgMarker.ViewBox.Height;
var scaleFactorWidth = (viewBoxWidth <= 0) ? 1 : (markerWidth / viewBoxWidth);
var scaleFactorHeight = (viewBoxHeight <= 0) ? 1 : (markerHeight / viewBoxHeight);
viewBoxToMarkerUnitsScaleX = Math.Min(scaleFactorWidth, scaleFactorHeight);
viewBoxToMarkerUnitsScaleY = Math.Min(scaleFactorWidth, scaleFactorHeight);
var skMatrixTranslateRefXY = SKMatrix.MakeTranslation(-refX * viewBoxToMarkerUnitsScaleX, -refY * viewBoxToMarkerUnitsScaleY);
skMarkerMatrix = skMarkerMatrix.PreConcat(skMatrixTranslateRefXY);
var skMatrixScaleXY = SKMatrix.MakeScale(viewBoxToMarkerUnitsScaleX, viewBoxToMarkerUnitsScaleY);
skMarkerMatrix = skMarkerMatrix.PreConcat(skMatrixScaleXY);
}
break;
case SvgMarkerUnits.UserSpaceOnUse:
{
var skMatrixTranslateRefXY = SKMatrix.MakeTranslation(-refX, -refY);
skMarkerMatrix = skMarkerMatrix.PreConcat(skMatrixTranslateRefXY);
}
break;
}
switch (svgMarker.Overflow)
{
case SvgOverflow.Auto:
case SvgOverflow.Visible:
case SvgOverflow.Inherit:
break;
default:
MarkerClipRect = SKRect.Create(
svgMarker.ViewBox.MinX,
svgMarker.ViewBox.MinY,
markerWidth / viewBoxToMarkerUnitsScaleX,
markerHeight / viewBoxToMarkerUnitsScaleY);
break;
}
var drawable = DrawableFactory.Create(markerElement, skOwnerBounds, root, this, Attributes.Display);
if (drawable != null)
{
MarkerElementDrawable = drawable;
_disposable.Add(MarkerElementDrawable);
}
else
{
IsDrawable = false;
return;
}
IsAntialias = SvgPaintingExtensions.IsAntialias(svgMarker);
TransformedBounds = MarkerElementDrawable.TransformedBounds;
Transform = SvgTransformsExtensions.ToSKMatrix(svgMarker.Transforms);
Transform = Transform.PreConcat(skMarkerMatrix);
Fill = null;
Stroke = null;
// TODO: Transform _skBounds using _skMatrix.
TransformedBounds = Transform.MapRect(TransformedBounds);
}
public UseDrawable(SvgUse svgUse, SKRect skOwnerBounds, Drawable?root, Drawable?parent, Attributes ignoreAttributes = Attributes.None)
: base(svgUse, root, parent)
{
IgnoreAttributes = ignoreAttributes;
IsDrawable = CanDraw(svgUse, IgnoreAttributes) && HasFeatures(svgUse, IgnoreAttributes);
if (!IsDrawable)
{
return;
}
if (SvgExtensions.HasRecursiveReference(svgUse, (e) => e.ReferencedElement, new HashSet <Uri>()))
{
IsDrawable = false;
return;
}
var svgReferencedElement = SvgExtensions.GetReference <SvgElement>(svgUse, svgUse.ReferencedElement);
if (svgReferencedElement == null)
{
IsDrawable = false;
return;
}
float x = svgUse.X.ToDeviceValue(UnitRenderingType.Horizontal, svgUse, skOwnerBounds);
float y = svgUse.Y.ToDeviceValue(UnitRenderingType.Vertical, svgUse, skOwnerBounds);
float width = svgUse.Width.ToDeviceValue(UnitRenderingType.Horizontal, svgUse, skOwnerBounds);
float height = svgUse.Height.ToDeviceValue(UnitRenderingType.Vertical, svgUse, skOwnerBounds);
if (width <= 0f)
{
width = new SvgUnit(SvgUnitType.Percentage, 100f).ToDeviceValue(UnitRenderingType.Horizontal, svgUse, skOwnerBounds);
}
if (height <= 0f)
{
height = new SvgUnit(SvgUnitType.Percentage, 100f).ToDeviceValue(UnitRenderingType.Vertical, svgUse, skOwnerBounds);
}
var originalReferencedElementParent = svgReferencedElement.Parent;
var referencedElementParent = default(FieldInfo);
try
{
referencedElementParent = svgReferencedElement.GetType().GetField("_parent", BindingFlags.NonPublic | BindingFlags.Instance);
if (referencedElementParent != null)
{
referencedElementParent.SetValue(svgReferencedElement, svgUse);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
Debug.WriteLine(ex.StackTrace);
}
svgReferencedElement.InvalidateChildPaths();
if (svgReferencedElement is SvgSymbol svgSymbol)
{
ReferencedDrawable = new SymbolDrawable(svgSymbol, x, y, width, height, skOwnerBounds, root, this, ignoreAttributes);
_disposable.Add(ReferencedDrawable);
}
else
{
var drawable = DrawableFactory.Create(svgReferencedElement, skOwnerBounds, root, this, ignoreAttributes);
if (drawable != null)
{
ReferencedDrawable = drawable;
_disposable.Add(ReferencedDrawable);
}
else
{
IsDrawable = false;
return;
}
}
IsAntialias = SvgPaintingExtensions.IsAntialias(svgUse);
TransformedBounds = ReferencedDrawable.TransformedBounds;
Transform = SvgTransformsExtensions.ToSKMatrix(svgUse.Transforms);
if (!(svgReferencedElement is SvgSymbol))
{
var skMatrixTranslateXY = SKMatrix.MakeTranslation(x, y);
Transform = Transform.PreConcat(skMatrixTranslateXY);
}
Fill = null;
Stroke = null;
// TODO: Transform _skBounds using _skMatrix.
TransformedBounds = Transform.MapRect(TransformedBounds);
try
{
if (referencedElementParent != null)
{
referencedElementParent.SetValue(svgReferencedElement, originalReferencedElementParent);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
Debug.WriteLine(ex.StackTrace);
}
}
public ImageDrawable(SvgImage svgImage, SKRect skOwnerBounds, Drawable?root, Drawable?parent, Attributes ignoreAttributes = Attributes.None)
: base(svgImage, root, parent)
{
IgnoreAttributes = ignoreAttributes;
IsDrawable = CanDraw(svgImage, IgnoreAttributes) && HasFeatures(svgImage, IgnoreAttributes);
if (!IsDrawable)
{
return;
}
float width = svgImage.Width.ToDeviceValue(UnitRenderingType.Horizontal, svgImage, skOwnerBounds);
float height = svgImage.Height.ToDeviceValue(UnitRenderingType.Vertical, svgImage, skOwnerBounds);
float x = svgImage.Location.X.ToDeviceValue(UnitRenderingType.Horizontal, svgImage, skOwnerBounds);
float y = svgImage.Location.Y.ToDeviceValue(UnitRenderingType.Vertical, svgImage, skOwnerBounds);
var location = new SKPoint(x, y);
if (width <= 0f || height <= 0f || svgImage.Href == null)
{
IsDrawable = false;
return;
}
// TODO: Check for image recursive references.
//if (SkiaUtil.HasRecursiveReference(svgImage, (e) => e.Href))
//{
// _canDraw = false;
// return;
//}
var image = SvgImageExtensions.GetImage(svgImage.Href, svgImage.OwnerDocument);
var skImage = image as SKImage;
var svgFragment = image as SvgFragment;
if (skImage == null && svgFragment == null)
{
IsDrawable = false;
return;
}
if (skImage != null)
{
_disposable.Add(skImage);
}
SrcRect = default;
if (skImage != null)
{
SrcRect = SKRect.Create(0f, 0f, skImage.Width, skImage.Height);
}
if (svgFragment != null)
{
var skSize = SvgExtensions.GetDimensions(svgFragment);
SrcRect = SKRect.Create(0f, 0f, skSize.Width, skSize.Height);
}
var destClip = SKRect.Create(location.X, location.Y, width, height);
var aspectRatio = svgImage.AspectRatio;
if (aspectRatio.Align != SvgPreserveAspectRatio.none)
{
var fScaleX = destClip.Width / SrcRect.Width;
var fScaleY = destClip.Height / SrcRect.Height;
var xOffset = 0f;
var yOffset = 0f;
if (aspectRatio.Slice)
{
fScaleX = Math.Max(fScaleX, fScaleY);
fScaleY = Math.Max(fScaleX, fScaleY);
}
else
{
fScaleX = Math.Min(fScaleX, fScaleY);
fScaleY = Math.Min(fScaleX, fScaleY);
}
switch (aspectRatio.Align)
{
case SvgPreserveAspectRatio.xMinYMin:
break;
case SvgPreserveAspectRatio.xMidYMin:
xOffset = (destClip.Width - SrcRect.Width * fScaleX) / 2;
break;
case SvgPreserveAspectRatio.xMaxYMin:
xOffset = (destClip.Width - SrcRect.Width * fScaleX);
break;
case SvgPreserveAspectRatio.xMinYMid:
yOffset = (destClip.Height - SrcRect.Height * fScaleY) / 2;
break;
case SvgPreserveAspectRatio.xMidYMid:
xOffset = (destClip.Width - SrcRect.Width * fScaleX) / 2;
yOffset = (destClip.Height - SrcRect.Height * fScaleY) / 2;
break;
case SvgPreserveAspectRatio.xMaxYMid:
xOffset = (destClip.Width - SrcRect.Width * fScaleX);
yOffset = (destClip.Height - SrcRect.Height * fScaleY) / 2;
break;
case SvgPreserveAspectRatio.xMinYMax:
yOffset = (destClip.Height - SrcRect.Height * fScaleY);
break;
case SvgPreserveAspectRatio.xMidYMax:
xOffset = (destClip.Width - SrcRect.Width * fScaleX) / 2;
yOffset = (destClip.Height - SrcRect.Height * fScaleY);
break;
case SvgPreserveAspectRatio.xMaxYMax:
xOffset = (destClip.Width - SrcRect.Width * fScaleX);
yOffset = (destClip.Height - SrcRect.Height * fScaleY);
break;
}
DestRect = SKRect.Create(
destClip.Left + xOffset,
destClip.Top + yOffset,
SrcRect.Width * fScaleX,
SrcRect.Height * fScaleY);
}
else
{
DestRect = destClip;
}
Clip = destClip;
var skClipRect = SvgClippingExtensions.GetClipRect(svgImage, destClip);
if (skClipRect != null)
{
Clip = skClipRect;
}
if (skImage != null)
{
Image = skImage;
}
if (svgFragment != null)
{
FragmentDrawable = new FragmentDrawable(svgFragment, skOwnerBounds, root, this, ignoreAttributes);
_disposable.Add(FragmentDrawable);
}
IsAntialias = SvgPaintingExtensions.IsAntialias(svgImage);
if (Image != null)
{
TransformedBounds = DestRect;
}
if (FragmentDrawable != null)
{
//_skBounds = _fragmentDrawable._skBounds;
TransformedBounds = DestRect;
}
Transform = SvgTransformsExtensions.ToSKMatrix(svgImage.Transforms);
FragmentTransform = SKMatrix.MakeIdentity();
if (FragmentDrawable != null)
{
float dx = DestRect.Left;
float dy = DestRect.Top;
float sx = DestRect.Width / SrcRect.Width;
float sy = DestRect.Height / SrcRect.Height;
var skTranslationMatrix = SKMatrix.MakeTranslation(dx, dy);
var skScaleMatrix = SKMatrix.MakeScale(sx, sy);
FragmentTransform = FragmentTransform.PreConcat(skTranslationMatrix);
FragmentTransform = FragmentTransform.PreConcat(skScaleMatrix);
}
Fill = null;
Stroke = null;
// TODO: Transform _skBounds using _skMatrix.
TransformedBounds = Transform.MapRect(TransformedBounds);
}
public FragmentDrawable(SvgFragment svgFragment, SKRect skOwnerBounds, Drawable?root, Drawable?parent, Attributes ignoreAttributes = Attributes.None)
: base(svgFragment, root, parent)
{
IgnoreAttributes = ignoreAttributes;
IsDrawable = HasFeatures(svgFragment, IgnoreAttributes);
if (!IsDrawable)
{
return;
}
var svgFragmentParent = svgFragment.Parent;
float x = svgFragmentParent == null ? 0f : svgFragment.X.ToDeviceValue(UnitRenderingType.Horizontal, svgFragment, skOwnerBounds);
float y = svgFragmentParent == null ? 0f : svgFragment.Y.ToDeviceValue(UnitRenderingType.Vertical, svgFragment, skOwnerBounds);
var skSize = SvgExtensions.GetDimensions(svgFragment);
if (skOwnerBounds.IsEmpty)
{
skOwnerBounds = SKRect.Create(x, y, skSize.Width, skSize.Height);
}
CreateChildren(svgFragment, skOwnerBounds, this, this, ignoreAttributes);
IsAntialias = SvgPaintingExtensions.IsAntialias(svgFragment);
TransformedBounds = skOwnerBounds;
CreateTransformedBounds();
Transform = SvgTransformsExtensions.ToSKMatrix(svgFragment.Transforms);
var skMatrixViewBox = SvgTransformsExtensions.ToSKMatrix(svgFragment.ViewBox, svgFragment.AspectRatio, x, y, skSize.Width, skSize.Height);
SKMatrix.PreConcat(ref Transform, ref skMatrixViewBox);
switch (svgFragment.Overflow)
{
case SvgOverflow.Auto:
case SvgOverflow.Visible:
case SvgOverflow.Inherit:
break;
default:
if (skSize.IsEmpty)
{
Overflow = SKRect.Create(
x,
y,
Math.Abs(TransformedBounds.Left) + TransformedBounds.Width,
Math.Abs(TransformedBounds.Top) + TransformedBounds.Height);
}
else
{
Overflow = SKRect.Create(x, y, skSize.Width, skSize.Height);
}
break;
}
var clipPathUris = new HashSet <Uri>();
var svgClipPath = svgFragment.GetUriElementReference <SvgClipPath>("clip-path", clipPathUris);
if (svgClipPath != null && svgClipPath.Children != null)
{
ClipPath = IgnoreAttributes.HasFlag(Attributes.ClipPath) ? null : SvgClippingExtensions.GetClipPath(svgClipPath, TransformedBounds, clipPathUris, _disposable);
}
else
{
ClipPath = null;
}
Fill = null;
Stroke = null;
// TODO: Transform _skBounds using _skMatrix.
SKMatrix.MapRect(ref Transform, out TransformedBounds, ref TransformedBounds);
}
public SymbolDrawable(SvgSymbol svgSymbol, float x, float y, float width, float height, SKRect skOwnerBounds, Drawable?root, Drawable?parent, Attributes ignoreAttributes)
: base(svgSymbol, root, parent)
{
IgnoreAttributes = ignoreAttributes;
IsDrawable = CanDraw(svgSymbol, IgnoreAttributes) && HasFeatures(svgSymbol, IgnoreAttributes);
if (!IsDrawable)
{
return;
}
if (svgSymbol.CustomAttributes.TryGetValue("width", out string?_widthString))
{
if (new SvgUnitConverter().ConvertFromString(_widthString) is SvgUnit _width)
{
width = _width.ToDeviceValue(UnitRenderingType.Horizontal, svgSymbol, skOwnerBounds);
}
}
if (svgSymbol.CustomAttributes.TryGetValue("height", out string?heightString))
{
if (new SvgUnitConverter().ConvertFromString(heightString) is SvgUnit _height)
{
height = _height.ToDeviceValue(UnitRenderingType.Vertical, svgSymbol, skOwnerBounds);
}
}
SvgOverflow svgOverflow = SvgOverflow.Hidden;
if (svgSymbol.TryGetAttribute("overflow", out string overflowString))
{
if (new SvgOverflowConverter().ConvertFromString(overflowString) is SvgOverflow _svgOverflow)
{
svgOverflow = _svgOverflow;
}
}
switch (svgOverflow)
{
case SvgOverflow.Auto:
case SvgOverflow.Visible:
case SvgOverflow.Inherit:
break;
default:
Overflow = SKRect.Create(x, y, width, height);
break;
}
CreateChildren(svgSymbol, skOwnerBounds, root, this, ignoreAttributes);
IsAntialias = SvgPaintingExtensions.IsAntialias(svgSymbol);
TransformedBounds = SKRect.Empty;
CreateTransformedBounds();
Transform = SvgTransformsExtensions.ToSKMatrix(svgSymbol.Transforms);
var skMatrixViewBox = SvgTransformsExtensions.ToSKMatrix(svgSymbol.ViewBox, svgSymbol.AspectRatio, x, y, width, height);
Transform = Transform.PreConcat(skMatrixViewBox);
Fill = null;
Stroke = null;
// TODO: Transform _skBounds using _skMatrix.
TransformedBounds = Transform.MapRect(TransformedBounds);
}
