private WpfFill GetPaintFill(string uri)
{
string absoluteUri = _element.ResolveUri(uri);
if (_element.Imported && _element.ImportDocument != null && _element.ImportNode != null)
{
// We need to determine whether the provided URI refers to element in the
// original document or in the current document...
SvgStyleableElement styleElm = _element.ImportNode as SvgStyleableElement;
if (styleElm != null)
{
var cssDeclaration = styleElm.GetComputedStyle("");
string propertyValue = cssDeclaration.GetPropertyValue(_propertyName);
if (!string.IsNullOrWhiteSpace(propertyValue))
{
WpfSvgPaint importFill = new WpfSvgPaint(_context, styleElm, _propertyName);
if (string.Equals(uri, importFill.Uri, StringComparison.OrdinalIgnoreCase))
{
WpfFill fill = WpfFill.CreateFill(_element.ImportDocument, absoluteUri);
if (fill != null)
{
return(fill);
}
}
}
}
}
return(WpfFill.CreateFill(_element.OwnerDocument, absoluteUri));
}
private void OnAfterRender(WpfDrawingRenderer renderer)
{
Debug.Assert(_drawGroup != null);
// Support for Tiny 1.2 viewport-fill property...
if (_svgElement.HasAttribute("viewport-fill"))
{
var viewportFill = _svgElement.GetAttribute("viewport-fill");
if (!string.IsNullOrWhiteSpace(viewportFill))
{
SvgSvgElement svgElm = (SvgSvgElement)_svgElement;
var brush = WpfFill.CreateViewportBrush(svgElm);
if (brush != null)
{
var bounds = new RectangleGeometry(_drawGroup.Bounds);
var drawing = new GeometryDrawing(brush, null, bounds);
_drawGroup.Children.Insert(0, drawing);
}
}
}
WpfDrawingContext context = renderer.Context;
DrawingGroup currentGroup = context.Peek();
if (currentGroup == null || currentGroup != _drawGroup)
{
throw new InvalidOperationException("An existing group is expected.");
}
context.Pop();
if (_isRoot && !context.IsFragment)
{
this.AdjustViewbox();
}
if (_isRoot || context.IsFragment)
{
return;
}
DrawingGroup drawGroup = CreateOuterGroup();
if (drawGroup == null)
{
return;
}
currentGroup = context.Peek();
if (currentGroup == null || currentGroup.Children.Remove(_drawGroup) == false)
{
return;
}
drawGroup.Children.Add(_drawGroup);
currentGroup.Children.Add(drawGroup);
}
private Brush GetBrush(Geometry geometry, string propPrefix, bool setOpacity)
{
WpfSvgPaintContext paintContext = null;
SvgPaintType paintType = this.PaintType;
WpfSvgPaint fill;
if (paintType == SvgPaintType.None)
{
return(null);
}
if (paintType == SvgPaintType.CurrentColor)
{
//TODO: Find a better way to support currentColor specified on parent element.
var deferredFill = this.GetDeferredFill();
if (deferredFill == null)
{
fill = new WpfSvgPaint(_context, _element, "color");
}
else
{
fill = deferredFill;
}
}
else if (paintType == SvgPaintType.ContextFill)
{
paintContext = GetFillContext();
if (paintContext != null)
{
fill = paintContext.Fill;
}
else
{
fill = this;
}
}
else if (paintType == SvgPaintType.ContextStroke)
{
paintContext = GetStrokeContext();
if (paintContext != null)
{
fill = paintContext.Stroke;
}
else
{
fill = this;
}
}
else
{
fill = this;
}
SvgPaintType fillType = fill.PaintType;
if (fillType == SvgPaintType.Uri || fillType == SvgPaintType.UriCurrentColor ||
fillType == SvgPaintType.UriNone || fillType == SvgPaintType.UriRgbColor ||
fillType == SvgPaintType.UriRgbColorIccColor)
{
_paintFill = GetPaintFill(fill.Uri);
if (_paintFill != null)
{
Brush brush = null;
if (geometry != null)
{
brush = _paintFill.GetBrush(geometry.Bounds, _context, geometry.Transform);
}
else
{
brush = _paintFill.GetBrush(Rect.Empty, _context, null);
}
if (brush != null)
{
brush.Opacity = GetOpacity(propPrefix);
}
return(brush);
}
if (paintType == SvgPaintType.UriNone || paintType == SvgPaintType.Uri)
{
return(null);
}
if (paintType == SvgPaintType.UriCurrentColor)
{
fill = new WpfSvgPaint(_context, _element, "color");
}
else
{
fill = this;
}
}
if (fill == null || fill.RgbColor == null)
{
return(null);
}
Color?solidColor = WpfConvert.ToColor(fill.RgbColor);
if (solidColor == null)
{
return(null);
}
SolidColorBrush solidBrush = new SolidColorBrush(solidColor.Value);
if (setOpacity)
{
solidBrush.Opacity = GetOpacity(propPrefix);
}
return(solidBrush);
}
public override void Render(WpfDrawingRenderer renderer)
{
WpfDrawingContext context = renderer.Context;
SvgImageElement imageElement = (SvgImageElement)_svgElement;
double x = imageElement.X.AnimVal.Value;
double y = imageElement.Y.AnimVal.Value;
double width = imageElement.Width.AnimVal.Value;
double height = imageElement.Height.AnimVal.Value;
Rect destRect = new Rect(x, y, width, height);
Rect clipRect = new Rect(x, y, width, height);
ImageSource imageSource = null;
if (imageElement.IsSvgImage)
{
if (imageElement.IsRootReferenced(imageElement.OwnerDocument.BaseURI))
{
return;
}
SvgWindow wnd = GetSvgWindow();
if (wnd == null)
{
return;
}
//_embeddedRenderer.BackColor = Color.Empty;
_embeddedRenderer.Render(wnd.Document);
DrawingGroup imageGroup = _embeddedRenderer.Drawing as DrawingGroup;
if (imageGroup != null &&
(imageGroup.Children != null && imageGroup.Children.Count == 1))
{
DrawingGroup imageDrawing = imageGroup.Children[0] as DrawingGroup;
if (imageDrawing != null)
{
imageDrawing.ClipGeometry = null;
imageSource = new DrawingImage(imageDrawing);
}
else
{
imageGroup.ClipGeometry = null;
imageSource = new DrawingImage(imageGroup);
}
}
else
{
imageSource = new DrawingImage(_embeddedRenderer.Drawing);
}
if (_embeddedRenderer != null)
{
_embeddedRenderer.Dispose();
_embeddedRenderer = null;
}
}
else
{
imageSource = GetBitmapSource(imageElement, context);
}
if (imageSource == null)
{
return;
}
//TODO--PAUL: Set the DecodePixelWidth/DecodePixelHeight?
// Freeze the DrawingImage for performance benefits.
//imageSource.Freeze();
DrawingGroup drawGroup = null;
ISvgAnimatedPreserveAspectRatio animatedAspectRatio = imageElement.PreserveAspectRatio;
if (animatedAspectRatio != null && animatedAspectRatio.AnimVal != null)
{
SvgPreserveAspectRatio aspectRatio = animatedAspectRatio.AnimVal as SvgPreserveAspectRatio;
SvgPreserveAspectRatioType aspectRatioType =
(aspectRatio != null) ? aspectRatio.Align : SvgPreserveAspectRatioType.Unknown;
if (aspectRatio != null && aspectRatioType != SvgPreserveAspectRatioType.None &&
aspectRatioType != SvgPreserveAspectRatioType.Unknown)
{
double imageWidth = imageSource.Width;
double imageHeight = imageSource.Height;
double viewWidth = destRect.Width;
double viewHeight = destRect.Height;
SvgMeetOrSlice meetOrSlice = aspectRatio.MeetOrSlice;
if (meetOrSlice == SvgMeetOrSlice.Meet)
{
if (imageWidth <= viewWidth && imageHeight <= viewHeight)
{
if (this.Transform == null)
{
if (!aspectRatio.IsDefaultAlign) // Cacxa
{
destRect = this.GetBounds(destRect, new Size(imageWidth, imageHeight), aspectRatioType);
}
else
{
Transform viewTransform = this.GetAspectRatioTransform(aspectRatio,
new SvgRect(0, 0, imageWidth, imageHeight),
new SvgRect(destRect.X, destRect.Y, destRect.Width, destRect.Height));
if (viewTransform != null)
{
drawGroup = new DrawingGroup();
drawGroup.Transform = viewTransform;
DrawingGroup lastGroup = context.Peek();
Debug.Assert(lastGroup != null);
if (lastGroup != null)
{
lastGroup.Children.Add(drawGroup);
}
destRect = this.GetBounds(destRect,
new Size(imageWidth, imageHeight), aspectRatioType);
// The origin is already handled by the view transform...
destRect.X = 0;
destRect.Y = 0;
}
}
}
else
{
destRect = new Rect(0, 0, viewWidth, viewHeight);
}
}
else
{
if (this.Transform == null)
{
Transform viewTransform = this.GetAspectRatioTransform(aspectRatio,
new SvgRect(0, 0, imageWidth, imageHeight),
new SvgRect(destRect.X, destRect.Y, destRect.Width, destRect.Height));
if (viewTransform != null)
{
drawGroup = new DrawingGroup();
drawGroup.Transform = viewTransform;
DrawingGroup lastGroup = context.Peek();
Debug.Assert(lastGroup != null);
if (lastGroup != null)
{
lastGroup.Children.Add(drawGroup);
}
destRect = this.GetBounds(destRect,
new Size(imageWidth, imageHeight), aspectRatioType);
// The origin is already handled by the view transform...
destRect.X = 0;
destRect.Y = 0;
}
}
}
}
else if (meetOrSlice == SvgMeetOrSlice.Slice)
{
var fScaleX = viewWidth / imageWidth;
var fScaleY = viewHeight / imageHeight;
Transform viewTransform = this.GetAspectRatioTransform(aspectRatio,
new SvgRect(0, 0, imageWidth, imageHeight),
new SvgRect(destRect.X, destRect.Y, destRect.Width, destRect.Height));
DrawingGroup sliceGroup = new DrawingGroup();
sliceGroup.ClipGeometry = new RectangleGeometry(clipRect);
DrawingGroup lastGroup = context.Peek();
Debug.Assert(lastGroup != null);
if (lastGroup != null)
{
lastGroup.Children.Add(sliceGroup);
}
if (viewTransform != null)
{
drawGroup = new DrawingGroup();
drawGroup.Transform = viewTransform;
sliceGroup.Children.Add(drawGroup);
destRect = this.GetBounds(destRect,
new Size(imageWidth, imageHeight), aspectRatioType);
// The origin is already handled by the view transform...
destRect.X = 0;
destRect.Y = 0;
}
else
{
drawGroup = sliceGroup;
}
}
}
}
ImageDrawing drawing = new ImageDrawing(imageSource, destRect);
float opacityValue = -1;
string opacity = imageElement.GetAttribute("opacity");
if (string.IsNullOrWhiteSpace(opacity))
{
opacity = imageElement.GetPropertyValue("opacity");
}
if (!string.IsNullOrWhiteSpace(opacity))
{
opacityValue = (float)SvgNumber.ParseNumber(opacity);
opacityValue = Math.Min(opacityValue, 1);
opacityValue = Math.Max(opacityValue, 0);
}
Geometry clipGeom = this.ClipGeometry;
Transform transform = this.Transform;
GeometryDrawing viewportDrawing = null;
// Support for Tiny 1.2 viewport-fill property...
if (_svgElement.HasAttribute("viewport-fill"))
{
var viewportFill = _svgElement.GetAttribute("viewport-fill");
if (!string.IsNullOrWhiteSpace(viewportFill))
{
var brush = WpfFill.CreateViewportBrush(imageElement);
if (brush != null)
{
var viewportBounds = new RectangleGeometry(destRect);
viewportDrawing = new GeometryDrawing(brush, null, viewportBounds);
}
}
}
bool ownedGroup = true;
if (drawGroup == null)
{
drawGroup = context.Peek();
ownedGroup = false;
}
else
{
if (viewportDrawing != null)
{
drawGroup.Children.Insert(0, viewportDrawing);
}
}
Debug.Assert(drawGroup != null);
if (drawGroup != null)
{
if ((opacityValue >= 0 && opacityValue < 1) || (clipGeom != null && !clipGeom.IsEmpty()) ||
(transform != null && !transform.Value.IsIdentity))
{
DrawingGroup clipGroup = ownedGroup ? drawGroup : new DrawingGroup();
if (opacityValue >= 0 && opacityValue < 1)
{
clipGroup.Opacity = opacityValue;
}
if (clipGeom != null)
{
SvgUnitType clipUnits = this.ClipUnits;
if (clipUnits == SvgUnitType.ObjectBoundingBox)
{
Rect drawingBounds = drawing.Bounds;
TransformGroup transformGroup = new TransformGroup();
// Scale the clip region (at (0, 0)) and translate to the top-left corner of the target.
transformGroup.Children.Add(
new ScaleTransform(drawingBounds.Width, drawingBounds.Height));
transformGroup.Children.Add(
new TranslateTransform(drawingBounds.X, drawingBounds.Y));
clipGeom.Transform = transformGroup;
}
clipGroup.ClipGeometry = clipGeom;
}
if (transform != null)
{
Transform curTransform = clipGroup.Transform;
if (curTransform != null && curTransform.Value.IsIdentity == false)
{
TransformGroup transformGroup = new TransformGroup();
transformGroup.Children.Add(curTransform);
transformGroup.Children.Add(transform);
clipGroup.Transform = transformGroup;
}
else
{
clipGroup.Transform = transform;
}
}
clipGroup.Children.Add(drawing);
if (!ownedGroup)
{
if (viewportDrawing != null)
{
clipGroup.Children.Insert(0, viewportDrawing);
}
drawGroup.Children.Add(clipGroup);
}
}
else
{
drawGroup.Children.Add(drawing);
}
string elementId = this.GetElementName();
if (ownedGroup)
{
string sVisibility = imageElement.GetPropertyValue("visibility");
string sDisplay = imageElement.GetPropertyValue("display");
if (string.Equals(sVisibility, "hidden") || string.Equals(sDisplay, "none"))
{
drawGroup.Opacity = 0;
}
if (!_idAssigned && !string.IsNullOrWhiteSpace(elementId) && !context.IsRegisteredId(elementId))
{
context.RegisterId(elementId);
if (context.IncludeRuntime)
{
SvgObject.SetName(drawGroup, elementId);
SvgObject.SetId(drawGroup, elementId);
}
}
// Register this drawing with the Drawing-Document...
this.Rendered(drawGroup);
}
else if (!_idAssigned)
{
if (!_idAssigned && !string.IsNullOrWhiteSpace(elementId) && !context.IsRegisteredId(elementId))
{
context.RegisterId(elementId);
if (context.IncludeRuntime)
{
SvgObject.SetName(imageSource, elementId);
SvgObject.SetId(imageSource, elementId);
}
}
// Register this drawing with the Drawing-Document...
this.Rendered(drawing);
}
}
}
private Brush GetBrush(Geometry geometry, string propPrefix,
bool setOpacity)
{
SvgPaint fill;
if (PaintType == SvgPaintType.None)
{
return null;
}
else if (PaintType == SvgPaintType.CurrentColor)
{
fill = new WpfSvgPaint(_context, _element, "color");
}
else
{
fill = this;
}
SvgPaintType paintType = fill.PaintType;
if (paintType == SvgPaintType.Uri || paintType == SvgPaintType.UriCurrentColor ||
paintType == SvgPaintType.UriNone || paintType == SvgPaintType.UriRgbColor ||
paintType == SvgPaintType.UriRgbColorIccColor)
{
_paintFill = GetPaintFill(fill.Uri);
if (_paintFill != null)
{
Brush brush = null;
if (geometry != null)
{
brush = _paintFill.GetBrush(geometry.Bounds, _context);
}
else
{
brush = _paintFill.GetBrush(Rect.Empty, _context);
}
if (brush != null)
{
brush.Opacity = GetOpacity(propPrefix);
}
return brush;
}
else
{
if (PaintType == SvgPaintType.UriNone || PaintType == SvgPaintType.Uri)
{
return null;
}
else if (PaintType == SvgPaintType.UriCurrentColor)
{
fill = new WpfSvgPaint(_context, _element, "color");
}
else
{
fill = this;
}
}
}
if (fill == null || fill.RgbColor == null)
{
return null;
}
Color? solidColor = WpfConvert.ToColor(fill.RgbColor);
if (solidColor == null)
{
return null;
}
SolidColorBrush solidBrush = new SolidColorBrush(solidColor.Value);
//int opacity = GetOpacity(propPrefix);
//solidBrush.Color = Color.FromArgb(opacity, brush.Color);
if (setOpacity)
{
solidBrush.Opacity = GetOpacity(propPrefix);
}
return solidBrush;
}
private Brush GetBrush(Geometry geometry, string propPrefix, bool setOpacity)
{
WpfSvgPaintContext paintContext = null;
SvgPaintType paintType = this.PaintType;
WpfSvgPaint fill;
if (paintType == SvgPaintType.None)
{
return(null);
}
if (paintType == SvgPaintType.CurrentColor)
{
//TODO: Find a better way to support currentColor specified on parent element.
var deferredFill = this.GetDeferredFill();
if (deferredFill == null)
{
fill = new WpfSvgPaint(_context, _element, CssConstants.PropColor);
}
else
{
fill = deferredFill;
}
}
else if (paintType == SvgPaintType.ContextFill)
{
paintContext = GetFillContext();
if (paintContext != null)
{
fill = paintContext.Fill;
}
else
{
fill = this;
}
}
else if (paintType == SvgPaintType.ContextStroke)
{
paintContext = GetStrokeContext();
if (paintContext != null)
{
fill = paintContext.Stroke;
}
else
{
fill = this;
}
}
else
{
fill = this;
}
SvgPaintType fillType = fill.PaintType;
if (fillType == SvgPaintType.Uri || fillType == SvgPaintType.UriCurrentColor ||
fillType == SvgPaintType.UriNone || fillType == SvgPaintType.UriRgbColor ||
fillType == SvgPaintType.UriRgbColorIccColor)
{
_paintFill = GetPaintFill(fill.Uri);
if (_paintFill != null)
{
Brush brush = null;
if (geometry != null)
{
brush = _paintFill.GetBrush(geometry.Bounds, _context, geometry.Transform);
}
else
{
brush = _paintFill.GetBrush(Rect.Empty, _context, null);
}
if (brush != null)
{
brush.Opacity = GetOpacity(propPrefix);
}
return(brush);
}
if (paintType == SvgPaintType.UriNone || paintType == SvgPaintType.Uri)
{
return(null);
}
if (paintType == SvgPaintType.UriCurrentColor)
{
fill = new WpfSvgPaint(_context, _element, CssConstants.PropColor);
}
else
{
fill = this;
}
}
if (fill == null || fill.RgbColor == null)
{
return(null);
}
if (fill.RgbColor.IsVarColor)
{
var cssVar = this.GetVarsValue(fill);
if (cssVar != null)
{
var cssVariables = _context.Settings.CssVariables;
if (cssVariables != null && cssVariables.ContainsKey(cssVar.VarName))
{
var cssColor = new CssColor(cssVariables[cssVar.VarName]);
Color?varColor = WpfConvert.ToColor(cssColor);
if (varColor != null)
{
var varBrush = new SolidColorBrush(varColor.Value);
if (setOpacity)
{
varBrush.Opacity = GetOpacity(propPrefix);
}
return(varBrush);
}
}
var cssValue = _element.GetComputedCssValue(cssVar.VarName, string.Empty) as CssAbsPrimitiveValue;
if (cssValue != null)
{
Color?varColor = WpfConvert.ToColor(cssValue.GetRgbColorValue());
if (varColor != null)
{
var varBrush = new SolidColorBrush(varColor.Value);
if (setOpacity)
{
varBrush.Opacity = GetOpacity(propPrefix);
}
return(varBrush);
}
}
var fallbackValue = cssVar.VarValue;
if (!string.IsNullOrWhiteSpace(fallbackValue))
{
var cssColor = new CssColor(fallbackValue);
Color?varColor = WpfConvert.ToColor(cssColor);
if (varColor != null)
{
var varBrush = new SolidColorBrush(varColor.Value);
if (setOpacity)
{
varBrush.Opacity = GetOpacity(propPrefix);
}
return(varBrush);
}
}
}
}
Color?solidColor = WpfConvert.ToColor(fill.RgbColor);
if (solidColor == null)
{
return(null);
}
SolidColorBrush solidBrush = new SolidColorBrush(solidColor.Value);
if (setOpacity)
{
solidBrush.Opacity = GetOpacity(propPrefix);
}
return(solidBrush);
}
private Brush GetBrush(Geometry geometry, string propPrefix,
bool setOpacity)
{
SvgPaint fill;
if (PaintType == SvgPaintType.None)
{
return(null);
}
else if (PaintType == SvgPaintType.CurrentColor)
{
fill = new WpfSvgPaint(_context, _element, "color");
}
else
{
fill = this;
}
SvgPaintType paintType = fill.PaintType;
if (paintType == SvgPaintType.Uri || paintType == SvgPaintType.UriCurrentColor ||
paintType == SvgPaintType.UriNone || paintType == SvgPaintType.UriRgbColor ||
paintType == SvgPaintType.UriRgbColorIccColor)
{
_paintFill = GetPaintFill(fill.Uri);
if (_paintFill != null)
{
Brush brush = null;
if (geometry != null)
{
brush = _paintFill.GetBrush(geometry.Bounds, _context);
}
else
{
brush = _paintFill.GetBrush(Rect.Empty, _context);
}
if (brush != null)
{
brush.Opacity = GetOpacity(propPrefix);
}
return(brush);
}
else
{
if (PaintType == SvgPaintType.UriNone || PaintType == SvgPaintType.Uri)
{
return(null);
}
else if (PaintType == SvgPaintType.UriCurrentColor)
{
fill = new WpfSvgPaint(_context, _element, "color");
}
else
{
fill = this;
}
}
}
if (fill == null || fill.RgbColor == null)
{
return(null);
}
Color?solidColor = WpfConvert.ToColor(fill.RgbColor);
if (solidColor == null)
{
return(null);
}
SolidColorBrush solidBrush = new SolidColorBrush(solidColor.Value);
//int opacity = GetOpacity(propPrefix);
//solidBrush.Color = Color.FromArgb(opacity, brush.Color);
if (setOpacity)
{
solidBrush.Opacity = GetOpacity(propPrefix);
}
return(solidBrush);
}
