private ImageSource GetImage(SvgImageElement element, WpfDrawingContext context)
{
if (context != null && context.Settings.IncludeRuntime == false)
{
return(null);
}
var comparer = StringComparison.OrdinalIgnoreCase;
string sURI = element.Href.AnimVal.Replace(" ", "");
int nColon = sURI.IndexOf(":", comparer);
int nSemiColon = sURI.IndexOf(";", comparer);
int nComma = sURI.IndexOf(",", comparer);
string sMimeType = sURI.Substring(nColon + 1, nSemiColon - nColon - 1);
string sContent = SvgObject.RemoveWhitespace(sURI.Substring(nComma + 1));
byte[] imageBytes = Convert.FromBase64CharArray(sContent.ToCharArray(),
0, sContent.Length);
bool isGZiped = sContent.StartsWith(SvgObject.GZipSignature, StringComparison.Ordinal);
if (string.Equals(sMimeType, "image/svg+xml", comparer))
{
if (isGZiped)
{
using (var stream = new MemoryStream(imageBytes))
{
using (GZipStream zipStream = new GZipStream(stream, CompressionMode.Decompress))
{
using (var reader = new FileSvgReader(context.Settings))
return(new DrawingImage(reader.Read(zipStream)));
}
}
}
else
{
using (var stream = new MemoryStream(imageBytes))
{
using (var reader = new FileSvgReader(context.Settings))
return(new DrawingImage(reader.Read(stream)));
}
}
}
return(new EmbeddedBitmapSource(new MemoryStream(imageBytes)));
}
public void RegisterDrawing(string elementId, string uniqueId, Drawing drawing)
{
if (_drawingDocument != null)
{
if (_settings != null && _settings.IncludeRuntime)
{
if (!string.IsNullOrWhiteSpace(elementId))
{
SvgObject.SetId(drawing, elementId);
}
if (!string.IsNullOrWhiteSpace(uniqueId))
{
SvgObject.SetUniqueId(drawing, uniqueId);
}
}
_drawingDocument.Add(elementId, uniqueId, drawing);
}
}
public override void BeforeRender(WpfDrawingRenderer renderer)
{
base.BeforeRender(renderer);
WpfDrawingContext context = renderer.Context;
_drawGroup = new DrawingGroup();
string elementId = this.GetElementName();
if (!string.IsNullOrWhiteSpace(elementId) && !context.IsRegisteredId(elementId))
{
SvgObject.SetName(_drawGroup, elementId);
context.RegisterId(elementId);
if (context.IncludeRuntime)
{
SvgObject.SetId(_drawGroup, elementId);
}
}
string elementClass = this.GetElementClass();
if (!string.IsNullOrWhiteSpace(elementClass) && context.IncludeRuntime)
{
SvgObject.SetClass(_drawGroup, elementClass);
}
DrawingGroup currentGroup = context.Peek();
if (currentGroup == null)
{
throw new InvalidOperationException("An existing group is expected.");
}
currentGroup.Children.Add(_drawGroup);
context.Push(_drawGroup);
}
private DrawingGroup GetDrawingLayer(DrawingGroup drawingGroup, ref bool isFound)
{
isFound = false;
DrawingGroup groupDrawing = null;
// Enumerate the drawings in the DrawingCollection.
foreach (Drawing drawing in drawingGroup.Children)
{
var itemKey = SvgLink.GetKey(drawing);
if (!string.IsNullOrWhiteSpace(itemKey) &&
itemKey.Equals(SvgObject.DrawLayer, StringComparison.OrdinalIgnoreCase))
{
isFound = true;
return((DrawingGroup)drawing);
}
// If the drawing is a DrawingGroup, call the function recursively.
if (TryCast.Cast(drawing, out groupDrawing))
{
SvgObjectType objectType = SvgObject.GetType(groupDrawing);
if (objectType != SvgObjectType.Text)
{
var nextGroup = GetDrawingLayer(groupDrawing, ref isFound);
if (nextGroup != groupDrawing)
{
itemKey = SvgLink.GetKey(nextGroup);
if (!string.IsNullOrWhiteSpace(itemKey) &&
itemKey.Equals(SvgObject.DrawLayer, StringComparison.OrdinalIgnoreCase))
{
return(nextGroup);
}
}
}
}
}
return(drawingGroup);
}
// Enumerate the drawings in the DrawingGroup.
private void EnumDrawingGroup(DrawingGroup drawingGroup)
{
DrawingCollection dc = drawingGroup.Children;
DrawingGroup groupDrawing = null;
// Enumerate the drawings in the DrawingCollection.
foreach (Drawing drawing in dc)
{
string objectId = SvgObject.GetId(drawing);
if (!string.IsNullOrWhiteSpace(objectId))
{
_idMap.Add(objectId, drawing);
}
string objectName = (string)drawing.GetValue(FrameworkElement.NameProperty);
if (!string.IsNullOrWhiteSpace(objectName))
{
_idMap[objectName] = drawing;
}
string uniqueId = SvgObject.GetUniqueId(drawing);
if (!string.IsNullOrWhiteSpace(uniqueId))
{
_guidMap.Add(uniqueId, drawing);
}
// If the drawing is a DrawingGroup, call the function recursively.
if (TryCast.Cast(drawing, out groupDrawing))
{
SvgObjectType objectType = SvgObject.GetType(groupDrawing);
if (objectType != SvgObjectType.Text)
{
EnumDrawingGroup(groupDrawing);
}
}
}
}
public WpfHitTestResult HitTest(Rect rect, IntersectionDetail detail)
{
var svgDrawing = this.PerformHitTest(rect, detail);
if (svgDrawing == null)
{
return(WpfHitTestResult.Empty);
}
string uniqueId = SvgObject.GetUniqueId(svgDrawing);
if (string.IsNullOrWhiteSpace(uniqueId))
{
return(new WpfHitTestResult(rect, null, svgDrawing));
// return WpfHitTestResult.Empty;
}
var svgElement = this.GetSvgByUniqueId(uniqueId);
if (svgElement == null)
{
return(WpfHitTestResult.Empty);
}
return(new WpfHitTestResult(rect, svgElement, svgDrawing));
}
public override void BeforeRender(WpfDrawingRenderer renderer)
{
base.BeforeRender(renderer);
_idElement = string.Empty;
WpfDrawingContext context = renderer.Context;
DrawingGroup currentGroup = context.Peek();
if (currentGroup == null)
{
throw new InvalidOperationException("An existing group is expected.");
}
if (currentGroup == context.Root)
{
if (context.IsFragment)
{
// Do not add extra layer to fragments...
_drawGroup = currentGroup;
}
else
{
_drawGroup = new DrawingGroup();
SvgObject.SetName(_drawGroup, SvgObject.DrawLayer);
if (context.IncludeRuntime)
{
SvgLink.SetKey(_drawGroup, SvgObject.DrawLayer);
}
currentGroup.Children.Add(_drawGroup);
context.Push(_drawGroup);
}
}
else
{
_drawGroup = new DrawingGroup();
currentGroup.Children.Add(_drawGroup);
context.Push(_drawGroup);
}
SvgPatternElement svgElm = (SvgPatternElement)_svgElement;
_idElement = svgElm.Id;
if (!string.IsNullOrWhiteSpace(_idElement))
{
context.AddUrl(_idElement);
}
double x = Math.Round(svgElm.X.AnimVal.Value, 4);
double y = Math.Round(svgElm.Y.AnimVal.Value, 4);
double width = Math.Round(svgElm.Width.AnimVal.Value, 4);
double height = Math.Round(svgElm.Height.AnimVal.Value, 4);
if (width < 0 || height < 0)
{
// For invalid dimension, prevent the drawing of the children...
_isRecursive = true;
return;
}
Rect elmRect = new Rect(x, y, width, height);
// XmlNode parentNode = _svgElement.ParentNode;
ISvgFitToViewBox fitToView = svgElm as ISvgFitToViewBox;
ISvgAnimatedPreserveAspectRatio preserveAspectRatio = null;
if (fitToView != null && fitToView.PreserveAspectRatio != null)
{
preserveAspectRatio = fitToView.PreserveAspectRatio;
ISvgAnimatedRect animRect = fitToView.ViewBox;
if (animRect != null)
{
ISvgRect viewRect = animRect.AnimVal;
if (viewRect != null)
{
Rect wpfViewRect = WpfConvert.ToRect(viewRect);
if (!wpfViewRect.IsEmpty && wpfViewRect.Width > 0 && wpfViewRect.Height > 0)
{
elmRect = wpfViewRect;
}
}
}
}
Transform transform = null;
var aspectRatio = (preserveAspectRatio != null) ? preserveAspectRatio.AnimVal : null;
if (aspectRatio != null /* && aspectRatio.Align == SvgPreserveAspectRatioType.None*/)
{
FitToViewbox(context, elmRect);
transform = this.Transform;
if (transform != null)
{
_drawGroup.Transform = transform;
}
}
}
public override void BeforeRender(WpfDrawingRenderer renderer)
{
base.BeforeRender(renderer);
if (renderer == null)
{
return;
}
_isLineSegment = false;
_setBrushOpacity = true;
WpfDrawingContext context = renderer.Context;
//SetQuality(context);
//SetTransform(context);
//SetMask(context);
// _drawGroup = new DrawingGroup();
SvgStyleableElement styleElm = (SvgStyleableElement)_svgElement;
float opacityValue = -1;
bool isStyleOpacity = false;
string opacity = styleElm.GetAttribute("opacity");
if (string.IsNullOrWhiteSpace(opacity))
{
opacity = styleElm.GetPropertyValue("opacity");
if (!string.IsNullOrWhiteSpace(opacity))
{
isStyleOpacity = true;
}
}
if (!string.IsNullOrWhiteSpace(opacity))
{
opacityValue = (float)SvgNumber.ParseNumber(opacity);
opacityValue = Math.Min(opacityValue, 1);
opacityValue = Math.Max(opacityValue, 0);
if (isStyleOpacity && (opacityValue >= 0 && opacityValue < 1))
{
_setBrushOpacity = false;
if (styleElm.HasAttribute("fill-opacity") || (styleElm.HasAttribute("style") &&
styleElm.GetAttribute("style").Contains("fill-opacity")))
{
_setBrushOpacity = true;
}
}
}
//string eVisibility = _svgElement.GetAttribute("visibility");
//string eDisplay = _svgElement.GetAttribute("display");
//if (string.Equals(eVisibility, "hidden") || string.Equals(eDisplay, "none"))
//{
// opacityValue = 0;
//}
//else
//{
// string sVisibility = styleElm.GetPropertyValue("visibility");
// string sDisplay = styleElm.GetPropertyValue("display");
// if (string.Equals(sVisibility, "hidden") || string.Equals(sDisplay, "none"))
// {
// opacityValue = 0;
// }
//}
string sVisibility = styleElm.GetPropertyValue("visibility");
if (string.IsNullOrWhiteSpace(sVisibility))
{
sVisibility = _svgElement.GetAttribute("visibility");
}
string sDisplay = styleElm.GetPropertyValue("display");
if (string.IsNullOrWhiteSpace(sDisplay))
{
sDisplay = _svgElement.GetAttribute("display");
}
if (string.Equals(sVisibility, "hidden") || string.Equals(sDisplay, "none"))
{
opacityValue = 0;
}
Transform pathTransform = this.Transform;
if (pathTransform != null && !pathTransform.Value.IsIdentity)
{
if (_drawGroup == null)
{
_drawGroup = new DrawingGroup();
}
_drawGroup.Transform = pathTransform;
}
else
{
pathTransform = null; // render any identity transform useless...
}
Geometry pathClip = this.ClipGeometry;
if (pathClip != null && !pathClip.IsEmpty())
{
if (_drawGroup == null)
{
_drawGroup = new DrawingGroup();
}
_drawGroup.ClipGeometry = pathClip;
}
else
{
pathClip = null; // render any empty geometry useless...
}
Brush pathMask = this.Masking;
if (pathMask != null)
{
if (_drawGroup == null)
{
_drawGroup = new DrawingGroup();
}
_drawGroup.OpacityMask = pathMask;
}
if (pathTransform != null || pathClip != null || pathMask != null || (opacityValue >= 0 && opacityValue < 1))
{
if (_drawGroup == null)
{
_drawGroup = new DrawingGroup();
}
if ((opacityValue >= 0 && opacityValue < 1))
{
_drawGroup.Opacity = opacityValue;
}
DrawingGroup curGroup = _context.Peek();
Debug.Assert(curGroup != null);
if (curGroup != null)
{
curGroup.Children.Add(_drawGroup);
context.Push(_drawGroup);
}
}
else
{
_drawGroup = null;
}
if (_drawGroup != null)
{
string elementClass = this.GetElementClass();
if (!string.IsNullOrWhiteSpace(elementClass) && context.IncludeRuntime)
{
SvgObject.SetClass(_drawGroup, elementClass);
}
string elementId = this.GetElementName();
if (!string.IsNullOrWhiteSpace(elementId) && !context.IsRegisteredId(elementId))
{
SvgObject.SetName(_drawGroup, elementId);
context.RegisterId(elementId);
if (context.IncludeRuntime)
{
SvgObject.SetId(_drawGroup, elementId);
}
}
}
}
private void RenderPath(WpfDrawingRenderer renderer)
{
WpfDrawingContext context = renderer.Context;
SvgRenderingHint hint = _svgElement.RenderingHint;
if (hint != SvgRenderingHint.Shape || hint == SvgRenderingHint.Clipping)
{
return;
}
var parentNode = _svgElement.ParentNode;
// We do not directly render the contents of the clip-path, unless specifically requested...
if (string.Equals(parentNode.LocalName, "clipPath") &&
!context.RenderingClipRegion)
{
return;
}
SvgStyleableElement styleElm = (SvgStyleableElement)_svgElement;
//string sVisibility = styleElm.GetPropertyValue("visibility");
//string sDisplay = styleElm.GetPropertyValue("display");
//if (string.Equals(sVisibility, "hidden") || string.Equals(sDisplay, "none"))
//{
// return;
//}
DrawingGroup drawGroup = context.Peek();
Debug.Assert(drawGroup != null);
Geometry geometry = CreateGeometry(_svgElement, context.OptimizePath);
string elementId = this.GetElementName();
string elementClass = this.GetElementClass();
GeometryDrawing drawing = null;
if (geometry == null || geometry.IsEmpty())
{
return;
}
var bounds = geometry.Bounds;
if (string.Equals(_svgElement.LocalName, "line", StringComparison.Ordinal))
{
_isLineSegment = true;
}
else if (string.Equals(_svgElement.LocalName, "rect", StringComparison.Ordinal))
{
_isLineSegment = bounds.Width.Equals(0) || bounds.Height.Equals(0);
}
else if (string.Equals(_svgElement.LocalName, "path", StringComparison.Ordinal))
{
_isLineSegment = bounds.Width.Equals(0) || bounds.Height.Equals(0);
}
context.UpdateBounds(geometry.Bounds);
// SetClip(context);
WpfSvgPaint fillPaint = new WpfSvgPaint(context, styleElm, "fill");
string fileValue = styleElm.GetAttribute("fill");
Brush brush = fillPaint.GetBrush(geometry, _setBrushOpacity);
bool isFillTransmable = fillPaint.IsFillTransformable;
WpfSvgPaint strokePaint = new WpfSvgPaint(context, styleElm, "stroke");
Pen pen = strokePaint.GetPen(geometry, _setBrushOpacity);
// By the SVG Specifications:
// Keyword 'objectBoundingBox' should not be used when the geometry of the applicable
// element has no width or no height, such as the case of a horizontal or vertical line,
// even when the line has actual thickness when viewed due to having a non-zero stroke
// width since stroke width is ignored for bounding box calculations. When the geometry
// of the applicable element has no width or height and 'objectBoundingBox' is specified,
// then the given effect (e.g., a gradient) will be ignored.
if (pen != null && _isLineSegment && strokePaint.FillType == WpfFillType.Gradient)
{
WpfGradientFill gradientFill = (WpfGradientFill)strokePaint.PaintServer;
if (gradientFill.IsUserSpace == false)
{
bool invalidGrad = false;
if (string.Equals(_svgElement.LocalName, "line", StringComparison.Ordinal))
{
LineGeometry lineGeometry = geometry as LineGeometry;
if (lineGeometry != null)
{
invalidGrad = SvgObject.IsEqual(lineGeometry.EndPoint.X, lineGeometry.StartPoint.X) ||
SvgObject.IsEqual(lineGeometry.EndPoint.Y, lineGeometry.StartPoint.Y);
}
}
else
{
invalidGrad = true;
}
if (invalidGrad)
{
// Brush is not likely inherited, we need to support fallback too
WpfSvgPaint fallbackPaint = strokePaint.WpfFallback;
if (fallbackPaint != null)
{
pen.Brush = fallbackPaint.GetBrush(geometry, _setBrushOpacity);
}
else
{
var scopePaint = strokePaint.GetScopeStroke();
if (scopePaint != null)
{
if (scopePaint != strokePaint)
{
pen.Brush = scopePaint.GetBrush(geometry, _setBrushOpacity);
}
else
{
pen.Brush = null;
}
}
else
{
pen.Brush = null;
}
}
}
}
}
if (_paintContext != null)
{
_paintContext.Fill = fillPaint;
_paintContext.Stroke = strokePaint;
_paintContext.Tag = geometry;
}
if (brush != null || pen != null)
{
Transform transform = this.Transform;
if (transform != null && !transform.Value.IsIdentity)
{
geometry.Transform = transform;
if (brush != null && isFillTransmable)
{
Transform brushTransform = brush.Transform;
if (brushTransform == null || brushTransform == Transform.Identity)
{
brush.Transform = transform;
}
else
{
TransformGroup groupTransform = new TransformGroup();
groupTransform.Children.Add(brushTransform);
groupTransform.Children.Add(transform);
brush.Transform = groupTransform;
}
}
if (pen != null && pen.Brush != null)
{
Transform brushTransform = pen.Brush.Transform;
if (brushTransform == null || brushTransform == Transform.Identity)
{
pen.Brush.Transform = transform;
}
else
{
TransformGroup groupTransform = new TransformGroup();
groupTransform.Children.Add(brushTransform);
groupTransform.Children.Add(transform);
pen.Brush.Transform = groupTransform;
}
}
}
else
{
transform = null; // render any identity transform useless...
}
drawing = new GeometryDrawing(brush, pen, geometry);
if (!string.IsNullOrWhiteSpace(elementId) && !context.IsRegisteredId(elementId))
{
SvgObject.SetName(drawing, elementId);
context.RegisterId(elementId);
if (context.IncludeRuntime)
{
SvgObject.SetId(drawing, elementId);
}
}
if (!string.IsNullOrWhiteSpace(elementClass) && context.IncludeRuntime)
{
SvgObject.SetClass(drawing, elementClass);
}
Brush maskBrush = this.Masking;
Geometry clipGeom = this.ClipGeometry;
if (clipGeom != null || maskBrush != null)
{
//Geometry clipped = Geometry.Combine(geometry, clipGeom,
// GeometryCombineMode.Exclude, null);
//if (clipped != null && !clipped.IsEmpty())
//{
// geometry = clipped;
//}
DrawingGroup clipMaskGroup = new DrawingGroup();
Rect geometryBounds = geometry.Bounds;
if (clipGeom != null)
{
clipMaskGroup.ClipGeometry = clipGeom;
SvgUnitType clipUnits = this.ClipUnits;
if (clipUnits == SvgUnitType.ObjectBoundingBox)
{
Rect drawingBounds = geometryBounds;
if (transform != null)
{
drawingBounds = transform.TransformBounds(drawingBounds);
}
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;
}
else
{
if (transform != null)
{
clipGeom.Transform = transform;
}
}
}
if (maskBrush != null)
{
DrawingBrush drawingBrush = (DrawingBrush)maskBrush;
SvgUnitType maskUnits = this.MaskUnits;
SvgUnitType maskContentUnits = this.MaskContentUnits;
if (maskUnits == SvgUnitType.ObjectBoundingBox)
{
Rect drawingBounds = geometryBounds;
if (transform != null)
{
drawingBounds = transform.TransformBounds(drawingBounds);
}
DrawingGroup maskGroup = drawingBrush.Drawing as DrawingGroup;
if (maskGroup != null)
{
DrawingCollection maskDrawings = maskGroup.Children;
for (int i = 0; i < maskDrawings.Count; i++)
{
Drawing maskDrawing = maskDrawings[i];
GeometryDrawing maskGeomDraw = maskDrawing as GeometryDrawing;
if (maskGeomDraw != null)
{
if (maskGeomDraw.Brush != null)
{
ConvertColors(maskGeomDraw.Brush);
}
if (maskGeomDraw.Pen != null)
{
ConvertColors(maskGeomDraw.Pen.Brush);
}
}
}
}
if (maskContentUnits == SvgUnitType.ObjectBoundingBox)
{
TransformGroup transformGroup = new TransformGroup();
// Scale the clip region (at (0, 0)) and translate to the top-left corner of the target.
var scaleTransform = new ScaleTransform(drawingBounds.Width, drawingBounds.Height);
transformGroup.Children.Add(scaleTransform);
var translateTransform = new TranslateTransform(drawingBounds.X, drawingBounds.Y);
transformGroup.Children.Add(translateTransform);
Matrix scaleMatrix = new Matrix();
Matrix translateMatrix = new Matrix();
scaleMatrix.Scale(drawingBounds.Width, drawingBounds.Height);
translateMatrix.Translate(drawingBounds.X, drawingBounds.Y);
Matrix matrix = Matrix.Multiply(scaleMatrix, translateMatrix);
//maskBrush.Transform = transformGroup;
maskBrush.Transform = new MatrixTransform(matrix);
}
else
{
drawingBrush.Viewbox = drawingBounds;
drawingBrush.ViewboxUnits = BrushMappingMode.Absolute;
drawingBrush.Stretch = Stretch.Uniform;
drawingBrush.Viewport = drawingBounds;
drawingBrush.ViewportUnits = BrushMappingMode.Absolute;
}
}
else
{
if (transform != null)
{
maskBrush.Transform = transform;
}
}
clipMaskGroup.OpacityMask = maskBrush;
}
clipMaskGroup.Children.Add(drawing);
drawGroup.Children.Add(clipMaskGroup);
}
else
{
drawGroup.Children.Add(drawing);
}
}
// If this is not the child of a "marker", then try rendering a marker...
if (!string.Equals(parentNode.LocalName, "marker"))
{
RenderMarkers(renderer, styleElm, context);
}
// Register this drawing with the Drawing-Document...
if (drawing != null)
{
this.Rendered(drawing);
}
}
public override void BeforeRender(WpfDrawingRenderer renderer)
{
base.BeforeRender(renderer);
if (renderer == null)
{
return;
}
WpfDrawingContext context = renderer.Context;
//SetQuality(context);
//SetTransform(context);
//SetMask(context);
_drawGroup = new DrawingGroup();
SvgStyleableElement styleElm = (SvgStyleableElement)_svgElement;
Transform pathTransform = this.Transform;
if (pathTransform != null && !pathTransform.Value.IsIdentity)
{
_drawGroup.Transform = pathTransform;
}
else
{
pathTransform = null; // render any identity transform useless...
}
Geometry pathClip = this.ClipGeometry;
if (pathClip != null && !pathClip.IsEmpty())
{
_drawGroup.ClipGeometry = pathClip;
}
else
{
pathClip = null; // render any empty geometry useless...
}
Brush pathMask = this.Masking;
if (pathMask != null)
{
_drawGroup.OpacityMask = pathMask;
}
if (pathTransform != null || pathClip != null || pathMask != null)
{
DrawingGroup curGroup = _context.Peek();
Debug.Assert(curGroup != null);
if (curGroup != null)
{
curGroup.Children.Add(_drawGroup);
context.Push(_drawGroup);
}
}
else
{
_drawGroup = null;
}
if (_drawGroup != null)
{
string sVisibility = styleElm.GetPropertyValue("visibility");
string sDisplay = styleElm.GetPropertyValue("display");
if (string.Equals(sVisibility, "hidden") || string.Equals(sDisplay, "none"))
{
_drawGroup.Opacity = 0;
}
string elementClass = this.GetElementClass();
if (!string.IsNullOrWhiteSpace(elementClass) && context.IncludeRuntime)
{
SvgObject.SetClass(_drawGroup, elementClass);
}
string elementId = this.GetElementName();
if (!string.IsNullOrWhiteSpace(elementId) && !context.IsRegisteredId(elementId))
{
SvgObject.SetName(_drawGroup, elementId);
context.RegisterId(elementId);
if (context.IncludeRuntime)
{
SvgObject.SetId(_drawGroup, elementId);
}
}
}
}
private void RenderPath(WpfDrawingRenderer renderer)
{
WpfDrawingContext context = renderer.Context;
SvgRenderingHint hint = _svgElement.RenderingHint;
if (hint != SvgRenderingHint.Shape || hint == SvgRenderingHint.Clipping)
{
return;
}
var parentNode = _svgElement.ParentNode;
// We do not directly render the contents of the clip-path, unless specifically requested...
if (string.Equals(parentNode.LocalName, "clipPath") &&
!context.RenderingClipRegion)
{
return;
}
SvgStyleableElement styleElm = (SvgStyleableElement)_svgElement;
string sVisibility = styleElm.GetPropertyValue("visibility");
string sDisplay = styleElm.GetPropertyValue("display");
if (string.Equals(sVisibility, "hidden") || string.Equals(sDisplay, "none"))
{
return;
}
DrawingGroup drawGroup = context.Peek();
Debug.Assert(drawGroup != null);
Geometry geometry = CreateGeometry(_svgElement, context.OptimizePath);
string elementId = this.GetElementName();
string elementClass = this.GetElementClass();
if (geometry != null && !geometry.IsEmpty())
{
context.UpdateBounds(geometry.Bounds);
// SetClip(context);
WpfSvgPaint fillPaint = new WpfSvgPaint(context, styleElm, "fill");
string fileValue = styleElm.GetAttribute("fill");
Brush brush = fillPaint.GetBrush(geometry);
bool isFillTransmable = fillPaint.IsFillTransformable;
WpfSvgPaint strokePaint = new WpfSvgPaint(context, styleElm, "stroke");
Pen pen = strokePaint.GetPen(geometry);
if (_paintContext != null)
{
_paintContext.Fill = fillPaint;
_paintContext.Stroke = strokePaint;
_paintContext.Tag = geometry;
}
if (brush != null || pen != null)
{
Transform transform = this.Transform;
if (transform != null && !transform.Value.IsIdentity)
{
geometry.Transform = transform;
if (brush != null && isFillTransmable)
{
Transform brushTransform = brush.Transform;
if (brushTransform == null || brushTransform == Transform.Identity)
{
brush.Transform = transform;
}
else
{
TransformGroup groupTransform = new TransformGroup();
groupTransform.Children.Add(brushTransform);
groupTransform.Children.Add(transform);
brush.Transform = groupTransform;
}
}
if (pen != null && pen.Brush != null)
{
Transform brushTransform = pen.Brush.Transform;
if (brushTransform == null || brushTransform == Transform.Identity)
{
pen.Brush.Transform = transform;
}
else
{
TransformGroup groupTransform = new TransformGroup();
groupTransform.Children.Add(brushTransform);
groupTransform.Children.Add(transform);
pen.Brush.Transform = groupTransform;
}
}
}
else
{
transform = null; // render any identity transform useless...
}
GeometryDrawing drawing = new GeometryDrawing(brush, pen, geometry);
if (!string.IsNullOrWhiteSpace(elementId) && !context.IsRegisteredId(elementId))
{
SvgObject.SetName(drawing, elementId);
context.RegisterId(elementId);
if (context.IncludeRuntime)
{
SvgObject.SetId(drawing, elementId);
}
}
if (!string.IsNullOrWhiteSpace(elementClass) && context.IncludeRuntime)
{
SvgObject.SetClass(drawing, elementClass);
}
Brush maskBrush = this.Masking;
Geometry clipGeom = this.ClipGeometry;
if (clipGeom != null || maskBrush != null)
{
//Geometry clipped = Geometry.Combine(geometry, clipGeom,
// GeometryCombineMode.Exclude, null);
//if (clipped != null && !clipped.IsEmpty())
//{
// geometry = clipped;
//}
DrawingGroup clipMaskGroup = new DrawingGroup();
Rect geometryBounds = geometry.Bounds;
if (clipGeom != null)
{
clipMaskGroup.ClipGeometry = clipGeom;
SvgUnitType clipUnits = this.ClipUnits;
if (clipUnits == SvgUnitType.ObjectBoundingBox)
{
Rect drawingBounds = geometryBounds;
if (transform != null)
{
drawingBounds = transform.TransformBounds(drawingBounds);
}
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;
}
else
{
if (transform != null)
{
clipGeom.Transform = transform;
}
}
}
if (maskBrush != null)
{
DrawingBrush drawingBrush = (DrawingBrush)maskBrush;
SvgUnitType maskUnits = this.MaskUnits;
SvgUnitType maskContentUnits = this.MaskContentUnits;
if (maskUnits == SvgUnitType.ObjectBoundingBox)
{
Rect drawingBounds = geometryBounds;
if (transform != null)
{
drawingBounds = transform.TransformBounds(drawingBounds);
}
DrawingGroup maskGroup = drawingBrush.Drawing as DrawingGroup;
if (maskGroup != null)
{
DrawingCollection maskDrawings = maskGroup.Children;
for (int i = 0; i < maskDrawings.Count; i++)
{
Drawing maskDrawing = maskDrawings[i];
GeometryDrawing maskGeomDraw = maskDrawing as GeometryDrawing;
if (maskGeomDraw != null)
{
if (maskGeomDraw.Brush != null)
{
ConvertColors(maskGeomDraw.Brush);
}
if (maskGeomDraw.Pen != null)
{
ConvertColors(maskGeomDraw.Pen.Brush);
}
}
}
}
if (maskContentUnits == SvgUnitType.ObjectBoundingBox)
{
TransformGroup transformGroup = new TransformGroup();
// Scale the clip region (at (0, 0)) and translate to the top-left corner of the target.
var scaleTransform = new ScaleTransform(drawingBounds.Width, drawingBounds.Height);
transformGroup.Children.Add(scaleTransform);
var translateTransform = new TranslateTransform(drawingBounds.X, drawingBounds.Y);
transformGroup.Children.Add(translateTransform);
Matrix scaleMatrix = new Matrix();
Matrix translateMatrix = new Matrix();
scaleMatrix.Scale(drawingBounds.Width, drawingBounds.Height);
translateMatrix.Translate(drawingBounds.X, drawingBounds.Y);
Matrix matrix = Matrix.Multiply(scaleMatrix, translateMatrix);
//maskBrush.Transform = transformGroup;
maskBrush.Transform = new MatrixTransform(matrix);
}
else
{
drawingBrush.Viewbox = drawingBounds;
drawingBrush.ViewboxUnits = BrushMappingMode.Absolute;
drawingBrush.Stretch = Stretch.Uniform;
drawingBrush.Viewport = drawingBounds;
drawingBrush.ViewportUnits = BrushMappingMode.Absolute;
}
}
else
{
if (transform != null)
{
maskBrush.Transform = transform;
}
}
clipMaskGroup.OpacityMask = maskBrush;
}
clipMaskGroup.Children.Add(drawing);
drawGroup.Children.Add(clipMaskGroup);
}
else
{
drawGroup.Children.Add(drawing);
}
}
}
// If this is not the child of a "marker", then try rendering a marker...
if (!string.Equals(parentNode.LocalName, "marker"))
{
RenderMarkers(renderer, styleElm, context);
}
}
// disable default rendering
public override void BeforeRender(WpfDrawingRenderer renderer)
{
base.BeforeRender(renderer);
_matrix = Matrix.Identity;
WpfDrawingContext context = renderer.Context;
//SetQuality(context);
//SetTransform(context);
//SetClip(_context);
//SetMask(_context);
_drawGroup = new DrawingGroup();
string sVisibility = _markerElement.GetPropertyValue("visibility");
string sDisplay = _markerElement.GetPropertyValue("display");
if (string.Equals(sVisibility, "hidden") || string.Equals(sDisplay, "none"))
{
// A 'marker' element with 'display' set to 'none' on that element or any
// ancestor is rendered when referenced by another element.
// _drawGroup.Opacity = 0;
}
string elementId = this.GetElementName();
if (!string.IsNullOrWhiteSpace(elementId) && !context.IsRegisteredId(elementId))
{
_drawGroup.SetValue(FrameworkElement.NameProperty, elementId);
context.RegisterId(elementId);
if (context.IncludeRuntime)
{
SvgObject.SetId(_drawGroup, elementId);
}
}
string elementClass = this.GetElementClass();
if (!string.IsNullOrWhiteSpace(elementClass) && context.IncludeRuntime)
{
SvgObject.SetClass(_drawGroup, elementClass);
}
//Transform markerTransform = this.Transform;
//if (markerTransform != null && !markerTransform.Value.IsIdentity)
//{
// _drawGroup.Transform = markerTransform;
//}
//else
//{
// markerTransform = null; // render any identity transform useless...
//}
Geometry markerClip = this.ClipGeometry;
if (markerClip != null && !markerClip.IsEmpty())
{
_drawGroup.ClipGeometry = markerClip;
}
else
{
markerClip = null; // render any empty geometry useless...
}
Brush markerMask = this.Masking;
if (markerMask != null)
{
_drawGroup.OpacityMask = markerMask;
}
DrawingGroup currentGroup = context.Peek();
if (currentGroup == null)
{
throw new InvalidOperationException("An existing group is expected.");
}
currentGroup.Children.Add(_drawGroup);
context.Push(_drawGroup);
}
public override void Visit(DrawingGroup group, SvgAElement element,
WpfDrawingContext context, float opacity)
{
_isAggregated = false;
if (group == null || element == null || context == null)
{
return;
}
AddExtraLinkInformation(group, element);
//string linkId = element.GetAttribute("id");
string linkId = GetElementName(element);
if (string.IsNullOrWhiteSpace(linkId))
{
return;
}
SvgLink.SetKey(group, linkId);
if (_dicLinks.ContainsKey(linkId))
{
_isAggregated = _dicLinks[linkId];
return;
}
string linkAction = element.GetAttribute("onclick");
if (string.IsNullOrWhiteSpace(linkAction))
{
linkAction = element.GetAttribute("onmouseover");
if (!string.IsNullOrWhiteSpace(linkAction) &&
linkAction.StartsWith("parent.svgMouseOverName", StringComparison.OrdinalIgnoreCase))
{
SvgLink.SetAction(group, SvgLinkAction.LinkTooltip);
}
else
{
SvgLink.SetAction(group, SvgLinkAction.LinkNone);
}
}
else
{
if (linkAction.StartsWith("parent.svgClick", StringComparison.OrdinalIgnoreCase))
{
SvgLink.SetAction(group, SvgLinkAction.LinkPage);
}
else if (linkAction.StartsWith("parent.svgOpenHtml", StringComparison.OrdinalIgnoreCase))
{
SvgLink.SetAction(group, SvgLinkAction.LinkHtml);
}
else
{
SvgLink.SetAction(group, SvgLinkAction.LinkNone);
}
}
if (!string.IsNullOrWhiteSpace(linkAction))
{
if (linkAction.IndexOf("'Top'", StringComparison.OrdinalIgnoreCase) > 0)
{
SvgLink.SetLocation(group, "Top");
}
else if (linkAction.IndexOf("'Bottom'", StringComparison.OrdinalIgnoreCase) > 0)
{
SvgLink.SetLocation(group, "Bottom");
}
else
{
SvgLink.SetLocation(group, "Top");
}
}
this.AggregateChildren(element, context, opacity);
if (_isAggregated)
{
Geometry drawGeometry = null;
if (_aggregatedGeom.Count == 1)
{
drawGeometry = _aggregatedGeom[0];
}
else
{
GeometryGroup geomGroup = new GeometryGroup();
geomGroup.FillRule = FillRule.Nonzero;
for (int i = 0; i < _aggregatedGeom.Count; i++)
{
geomGroup.Children.Add(_aggregatedGeom[i]);
}
drawGeometry = geomGroup;
}
WpfSvgPaint fillPaint = new WpfSvgPaint(context, _aggregatedFill, "fill");
Brush brush = fillPaint.GetBrush(false);
SvgObject.SetName(brush, linkId + "_Brush");
GeometryDrawing drawing = new GeometryDrawing(brush, null, drawGeometry);
group.Children.Add(drawing);
}
_dicLinks.Add(linkId, _isAggregated);
}
public override void BeforeRender(WpfDrawingRenderer renderer)
{
base.BeforeRender(renderer);
_isTextPath = false;
_isGroupAdded = false;
_textWidth = 0;
_isMeasuring = false;
WpfDrawingContext context = renderer.Context;
SvgRenderingHint hint = _svgElement.RenderingHint;
if (hint == SvgRenderingHint.Clipping)
{
return;
}
// We do not directly render the contents of the clip-path, unless specifically requested...
if (string.Equals(_svgElement.ParentNode.LocalName, "clipPath") &&
!context.RenderingClipRegion)
{
return;
}
_context = renderer.Context;
SetQuality(context);
SetTransform(context);
SetClip(_context);
SetMask(_context);
_drawGroup = new DrawingGroup();
string sVisibility = _textElement.GetPropertyValue("visibility");
string sDisplay = _textElement.GetPropertyValue("display");
if (string.Equals(sVisibility, "hidden") || string.Equals(sDisplay, "none"))
{
_drawGroup.Opacity = 0;
}
string elementId = this.GetElementName();
if (!string.IsNullOrWhiteSpace(elementId) && !context.IsRegisteredId(elementId))
{
SvgObject.SetName(_drawGroup, elementId);
context.RegisterId(elementId);
if (context.IncludeRuntime)
{
SvgObject.SetId(_drawGroup, elementId);
}
}
string elementClass = this.GetElementClass();
if (!string.IsNullOrWhiteSpace(elementClass) && context.IncludeRuntime)
{
SvgObject.SetClass(_drawGroup, elementClass);
}
Transform textTransform = this.Transform;
if (textTransform != null && !textTransform.Value.IsIdentity)
{
_drawGroup.Transform = textTransform;
}
else
{
textTransform = null; // render any identity transform useless...
}
Geometry textClip = this.ClipGeometry;
if (textClip != null && !textClip.IsEmpty())
{
_drawGroup.ClipGeometry = textClip;
}
else
{
textClip = null; // render any empty geometry useless...
}
Brush textMask = this.Masking;
if (textMask != null)
{
_drawGroup.OpacityMask = textMask;
}
if (textTransform != null || textClip != null || textMask != null)
{
DrawingGroup curGroup = _context.Peek();
Debug.Assert(curGroup != null);
if (curGroup != null)
{
curGroup.Children.Add(_drawGroup);
context.Push(_drawGroup);
_isGroupAdded = true;
}
}
_drawContext = _drawGroup.Open();
_horzRenderer.Initialize(_drawContext, _context);
_vertRenderer.Initialize(_drawContext, _context);
_pathRenderer.Initialize(_drawContext, _context);
}
public override void Render(WpfDrawingRenderer renderer)
{
Geometry clipGeom = this.ClipGeometry;
Transform transform = this.Transform;
WpfDrawingContext context = renderer.Context;
SvgSwitchElement switchElement = (SvgSwitchElement)_svgElement;
string elementId = this.GetElementName();
float opacityValue = -1;
string opacity = switchElement.GetAttribute("opacity");
if (string.IsNullOrWhiteSpace(opacity))
{
opacity = switchElement.GetPropertyValue("opacity");
}
if (!string.IsNullOrWhiteSpace(opacity))
{
opacityValue = (float)SvgNumber.ParseNumber(opacity);
opacityValue = Math.Min(opacityValue, 1);
opacityValue = Math.Max(opacityValue, 0);
}
if (clipGeom != null || transform != null || (opacityValue >= 0 && opacityValue < 1) ||
(!string.IsNullOrWhiteSpace(elementId) && !context.IsRegisteredId(elementId)))
{
_drawGroup = new DrawingGroup();
DrawingGroup currentGroup = context.Peek();
if (currentGroup == null)
{
throw new InvalidOperationException("An existing group is expected.");
}
currentGroup.Children.Add(_drawGroup);
context.Push(_drawGroup);
if (clipGeom != null)
{
_drawGroup.ClipGeometry = clipGeom;
}
if (transform != null)
{
_drawGroup.Transform = transform;
}
if (opacityValue >= 0 && opacityValue < 1)
{
_drawGroup.Opacity = opacityValue;
}
if (!string.IsNullOrWhiteSpace(elementId) && !context.IsRegisteredId(elementId))
{
SvgObject.SetName(_drawGroup, elementId);
context.RegisterId(elementId);
if (context.IncludeRuntime)
{
SvgObject.SetId(_drawGroup, elementId);
}
}
}
base.Render(renderer);
}
private void WriteObject(object key, object obj, XmlWriter writer, bool isRoot)
{
List <MarkupProperty> propertyElements = new List <MarkupProperty>();
MarkupProperty contentProperty = null;
string contentPropertyName = null;
MarkupObject markupObj = MarkupWriter.GetMarkupObjectFor(obj);
Type objectType = markupObj.ObjectType;
string ns = _namespaceCache.GetNamespaceUriFor(objectType);
string prefix = _namespaceCache.GetDefaultPrefixFor(ns);
if (isRoot)
{
if (String.IsNullOrEmpty(prefix))
{
if (String.IsNullOrEmpty(ns))
{
writer.WriteStartElement(markupObj.ObjectType.Name, NamespaceCache.DefaultNamespace);
writer.WriteAttributeString("xmlns",
NamespaceCache.XmlnsNamespace, NamespaceCache.DefaultNamespace);
}
else
{
writer.WriteStartElement(markupObj.ObjectType.Name, ns);
writer.WriteAttributeString("xmlns", NamespaceCache.XmlnsNamespace, ns);
}
}
else
{
writer.WriteStartElement(prefix, markupObj.ObjectType.Name, ns);
}
writer.WriteAttributeString("xmlns", "x",
NamespaceCache.XmlnsNamespace, NamespaceCache.XamlNamespace);
foreach (NamespaceMap map in _dicNamespaceMap.Values)
{
if (!String.IsNullOrEmpty(map.Prefix) && !String.Equals(map.Prefix, "x"))
{
writer.WriteAttributeString("xmlns", map.Prefix, NamespaceCache.XmlnsNamespace, map.XmlNamespace);
}
}
}
else
{
//TODO: Fix - the best way to handle this case...
if (markupObj.ObjectType.Name == "PathFigureCollection" && markupObj.Instance != null)
{
WriteState writeState = writer.WriteState;
if (writeState == WriteState.Element)
{
//writer.WriteAttributeString("Figures",
// markupObj.Instance.ToString());
writer.WriteAttributeString("Figures",
System.Convert.ToString(markupObj.Instance, _culture));
}
else
{
if (String.IsNullOrEmpty(prefix))
{
writer.WriteStartElement("PathGeometry.Figures");
}
else
{
writer.WriteStartElement("PathGeometry.Figures", ns);
}
//writer.WriteString(markupObj.Instance.ToString());
writer.WriteString(System.Convert.ToString(
markupObj.Instance, _culture));
writer.WriteEndElement();
}
return;
}
else
{
if (String.IsNullOrEmpty(prefix))
{
writer.WriteStartElement(markupObj.ObjectType.Name);
}
else
{
writer.WriteStartElement(markupObj.ObjectType.Name, ns);
}
}
}
// Add the x:Name for object like Geometry/Drawing not derived from FrameworkElement...
DependencyObject dep = obj as DependencyObject;
if (dep != null)
{
string nameValue = SvgObject.GetName(dep);
if (!String.IsNullOrEmpty(nameValue) && !(dep is FrameworkElement))
{
writer.WriteAttributeString("x", "Name", NamespaceCache.XamlNamespace, nameValue);
}
}
if (key != null)
{
string keyString = key.ToString();
if (keyString.Length > 0)
{
writer.WriteAttributeString("x", "Key", NamespaceCache.XamlNamespace, keyString);
}
else
{
//TODO: key may not be a string, what about x:Type...
throw new NotImplementedException(
"Sample XamlWriter cannot yet handle keys that aren't strings");
}
}
//Look for CPA info in our cache that keeps contentProperty names per Type
//If it doesn't have an entry, go get the info and store it.
if (!_contentProperties.ContainsKey(objectType))
{
string lookedUpContentProperty = String.Empty;
foreach (Attribute attr in markupObj.Attributes)
{
ContentPropertyAttribute cpa = attr as ContentPropertyAttribute;
if (cpa != null)
{
lookedUpContentProperty = cpa.Name;
//Once content property is found, come out of the loop.
break;
}
}
_contentProperties.Add(objectType, lookedUpContentProperty);
}
contentPropertyName = _contentProperties[objectType];
string contentString = String.Empty;
foreach (MarkupProperty markupProperty in markupObj.Properties)
{
if (markupProperty.Name != contentPropertyName)
{
if (markupProperty.IsValueAsString)
{
contentString = markupProperty.Value as string;
}
else if (!markupProperty.IsComposite)
{
string temp = markupProperty.StringValue;
if (markupProperty.IsAttached)
{
string ns1 = _namespaceCache.GetNamespaceUriFor(markupProperty.DependencyProperty.OwnerType);
string prefix1 = _namespaceCache.GetDefaultPrefixFor(ns1);
if (String.IsNullOrEmpty(prefix1))
{
writer.WriteAttributeString(markupProperty.Name, temp);
}
else
{
writer.WriteAttributeString(markupProperty.Name, ns1, temp);
}
}
else
{
if (markupProperty.Name == "FontUri" &&
(_wpfSettings != null && _wpfSettings.IncludeRuntime))
{
string fontUri = temp.ToLower();
fontUri = fontUri.Replace(_windowsDir, _windowsPath);
StringBuilder builder = new StringBuilder();
builder.Append("{");
builder.Append("svg");
builder.Append(":");
builder.Append("SvgFontUri ");
builder.Append(fontUri);
builder.Append("}");
writer.WriteAttributeString(markupProperty.Name, builder.ToString());
}
else
{
writer.WriteAttributeString(markupProperty.Name, temp);
}
}
}
else if (markupProperty.Value.GetType() == _nullType)
{
if (_nullExtension)
{
writer.WriteAttributeString(markupProperty.Name, "{x:Null}");
}
}
else
{
propertyElements.Add(markupProperty);
}
}
else
{
contentProperty = markupProperty;
}
}
if (contentProperty != null || propertyElements.Count > 0 || contentString != String.Empty)
{
foreach (MarkupProperty markupProp in propertyElements)
{
string ns2 = _namespaceCache.GetNamespaceUriFor(markupObj.ObjectType);
string prefix2 = null;
if (!String.IsNullOrEmpty(ns2))
{
prefix2 = _namespaceCache.GetDefaultPrefixFor(ns2);
}
string propElementName = markupObj.ObjectType.Name + "." + markupProp.Name;
if (String.IsNullOrEmpty(prefix2))
{
writer.WriteStartElement(propElementName);
}
else
{
writer.WriteStartElement(prefix2, propElementName, ns2);
}
WriteChildren(writer, markupProp);
writer.WriteEndElement();
}
if (contentString != String.Empty)
{
writer.WriteValue(contentString);
}
else if (contentProperty != null)
{
if (contentProperty.Value is string)
{
writer.WriteValue(contentProperty.StringValue);
}
else
{
WriteChildren(writer, contentProperty);
}
}
}
writer.WriteEndElement();
}
private Drawing PerformHitTest(Point pt)
{
_hitGroup = null;
if (_hitList == null)
{
_hitList = new SortedList <int, Drawing>();
}
else if (_hitList.Count != 0)
{
_hitList.Clear();
}
if (_svgDrawing == null)
{
return(null);
}
Point ptDisplay = _displayTransform.Transform(pt);
DrawingGroup groupDrawing = null;
GlyphRunDrawing glyRunDrawing = null;
GeometryDrawing geometryDrawing = null;
Drawing foundDrawing = null;
DrawingCollection drawings = _svgDrawing.Children;
for (int i = drawings.Count - 1; i >= 0; i--)
{
Drawing drawing = drawings[i];
if (TryCast.Cast(drawing, out geometryDrawing))
{
if (HitTestDrawing(geometryDrawing, ptDisplay))
{
int orderNumber = SvgObject.GetOrder(drawing);
if (orderNumber >= 0)
{
_hitList[orderNumber] = drawing;
}
else
{
string uniqueId = SvgObject.GetUniqueId(geometryDrawing);
if (!string.IsNullOrWhiteSpace(uniqueId))
{
foundDrawing = drawing;
break;
}
}
}
}
else if (TryCast.Cast(drawing, out groupDrawing))
{
int orderNumber = SvgObject.GetOrder(drawing);
if (SvgObject.GetType(groupDrawing) == SvgObjectType.Text &&
groupDrawing.Bounds.Contains(ptDisplay))
{
if (orderNumber >= 0)
{
_hitList[orderNumber] = drawing;
}
else
{
foundDrawing = drawing;
break;
}
}
if (HitTestDrawing(groupDrawing, ptDisplay, out foundDrawing))
{
if (orderNumber >= 0)
{
_hitList[orderNumber] = drawing;
}
else
{
string uniqueId = SvgObject.GetUniqueId(foundDrawing);
if (!string.IsNullOrWhiteSpace(uniqueId))
{
//foundDrawing = drawing;
break;
}
}
}
}
else if (TryCast.Cast(drawing, out glyRunDrawing))
{
if (HitTestDrawing(glyRunDrawing, ptDisplay))
{
int orderNumber = SvgObject.GetOrder(drawing);
if (orderNumber >= 0)
{
_hitList[orderNumber] = drawing;
}
else
{
foundDrawing = drawing;
break;
}
}
}
}
if (_hitList.Count != 0)
{
return(_hitList.LastOrDefault().Value);
}
if (foundDrawing == null)
{
return(_hitGroup);
}
return(foundDrawing);
}
private Drawing PerformHitTest(Point pt)
{
if (_svgDrawing == null)
{
return(null);
}
_hitGroup = null;
if (_hitList == null)
{
_hitList = new SortedList <int, Drawing>();
_hitPaths = new SortedList <int, WpfHitPath>();
}
else if (_hitList.Count != 0)
{
_hitList.Clear();
_hitPaths.Clear();
}
var hitRootPath = new WpfHitPath();
_hitPath = hitRootPath;
Point ptDisplay = _displayTransform.Transform(pt);
DrawingGroup groupDrawing = null;
GlyphRunDrawing glyRunDrawing = null;
GeometryDrawing geometryDrawing = null;
Drawing foundDrawing = null;
//var isFound = false;
//var drawingLayer = this.GetDrawingLayer(_svgDrawing, ref isFound);
//System.Diagnostics.Trace.WriteLine("GetId: " + SvgObject.GetId(drawingLayer));
//System.Diagnostics.Trace.WriteLine("GetName: " + SvgObject.GetName(drawingLayer));
//System.Diagnostics.Trace.WriteLine("GetUniqueId: " + SvgObject.GetUniqueId(drawingLayer));
//DrawingCollection drawings = drawingLayer.Children;
DrawingCollection drawings = _svgDrawing.Children;
for (int i = drawings.Count - 1; i >= 0; i--)
{
Drawing drawing = drawings[i];
System.Diagnostics.Trace.WriteLine("GetId: " + SvgObject.GetId(drawing));
System.Diagnostics.Trace.WriteLine("GetName: " + SvgObject.GetName(drawing));
System.Diagnostics.Trace.WriteLine("GetUniqueId: " + SvgObject.GetUniqueId(drawing));
if (TryCast.Cast(drawing, out geometryDrawing))
{
if (HitTestDrawing(geometryDrawing, ptDisplay))
{
// _hitPath = _hitPath.AddChild(SvgObject.GetUniqueId(geometryDrawing));
int orderNumber = SvgObject.GetOrder(drawing);
if (orderNumber >= 0)
{
_hitList[orderNumber] = drawing;
_hitPaths[orderNumber] = _hitPath.AddChild(SvgObject.GetUniqueId(geometryDrawing));
}
else
{
string uniqueId = SvgObject.GetUniqueId(geometryDrawing);
if (!string.IsNullOrWhiteSpace(uniqueId))
{
foundDrawing = drawing;
break;
}
}
}
}
else if (TryCast.Cast(drawing, out groupDrawing))
{
//var ptSaved = ptDisplay;
//var transform = groupDrawing.Transform;
//if (transform != null && !transform.Value.IsIdentity)
//{
// ptDisplay = transform.Inverse.Transform(ptDisplay);
//}
_hitPath = hitRootPath.AddChild(SvgObject.GetUniqueId(groupDrawing));
int orderNumber = SvgObject.GetOrder(groupDrawing);
//if (SvgObject.GetType(groupDrawing) == SvgObjectType.Text &&
// groupDrawing.Bounds.Contains(ptDisplay))
if (SvgObject.GetType(groupDrawing) == SvgObjectType.Text &&
this.HitTestText(groupDrawing, ptDisplay, out foundDrawing))
{
if (orderNumber >= 0)
{
_hitList[orderNumber] = drawing;
_hitPaths[orderNumber] = _hitPath;
}
else
{
foundDrawing = drawing;
break;
}
}
else
{
// _hitPath = _hitPath.AddChild(SvgObject.GetUniqueId(groupDrawing));
var currentPath = _hitPath;
try
{
if (HitTestDrawing(groupDrawing, ptDisplay, out foundDrawing))
{
if (orderNumber >= 0)
{
_hitList[orderNumber] = drawing;
_hitPaths[orderNumber] = _hitPath.AddChild(SvgObject.GetUniqueId(foundDrawing));
}
else
{
string uniqueId = SvgObject.GetUniqueId(foundDrawing);
if (!string.IsNullOrWhiteSpace(uniqueId))
{
//foundDrawing = drawing;
break;
}
}
}
}
finally
{
_hitPath = currentPath;
}
}
}
else if (TryCast.Cast(drawing, out glyRunDrawing))
{
if (HitTestDrawing(glyRunDrawing, ptDisplay))
{
// _hitPath = _hitPath.AddChild(SvgObject.GetUniqueId(glyRunDrawing));
int orderNumber = SvgObject.GetOrder(drawing);
if (orderNumber >= 0)
{
_hitList[orderNumber] = drawing;
_hitPaths[orderNumber] = _hitPath.AddChild(SvgObject.GetUniqueId(glyRunDrawing));
}
else
{
foundDrawing = drawing;
break;
}
}
}
}
if (_hitList.Count != 0)
{
var key = _hitList.LastOrDefault().Key;
if (_hitPaths.ContainsKey(key))
{
System.Diagnostics.Trace.WriteLine("Key Found: " + _hitPaths[key].Path);
}
return(_hitList.LastOrDefault().Value);
}
if (foundDrawing == null)
{
return(_hitGroup);
}
return(foundDrawing);
}
public override void BeforeRender(WpfDrawingRenderer renderer)
{
base.BeforeRender(renderer);
WpfDrawingContext context = renderer.Context;
_drawGroup = new DrawingGroup();
if (context.Count == 0)
{
context.Push(_drawGroup);
context.Root = _drawGroup;
}
else if (context.Count == 1)
{
DrawingGroup currentGroup = context.Peek();
if (currentGroup == null)
{
throw new InvalidOperationException("An existing group is expected.");
}
if (currentGroup == context.Root && !context.IsFragment)
{
SvgObject.SetName(_drawGroup, SvgObject.DrawLayer);
if (context.IncludeRuntime)
{
SvgLink.SetKey(_drawGroup, SvgObject.DrawLayer);
}
}
currentGroup.Children.Add(_drawGroup);
context.Push(_drawGroup);
}
else
{
DrawingGroup currentGroup = context.Peek();
if (currentGroup == null)
{
throw new InvalidOperationException("An existing group is expected.");
}
currentGroup.Children.Add(_drawGroup);
context.Push(_drawGroup);
}
SvgSymbolElement svgElm = (SvgSymbolElement)_svgElement;
double x = Math.Round(svgElm.X.AnimVal.Value, 4);
double y = Math.Round(svgElm.Y.AnimVal.Value, 4);
double width = Math.Round(svgElm.Width.AnimVal.Value, 4);
double height = Math.Round(svgElm.Height.AnimVal.Value, 4);
Rect elmRect = new Rect(x, y, width, height);
XmlNode parentNode = _svgElement.ParentNode;
ISvgFitToViewBox fitToView = svgElm as ISvgFitToViewBox;
if (fitToView != null)
{
ISvgAnimatedRect animRect = fitToView.ViewBox;
if (animRect != null)
{
ISvgRect viewRect = animRect.AnimVal;
if (viewRect != null)
{
Rect wpfViewRect = WpfConvert.ToRect(viewRect);
if (!wpfViewRect.IsEmpty && wpfViewRect.Width > 0 && wpfViewRect.Height > 0)
{
elmRect = wpfViewRect;
}
}
}
}
FitToViewbox(context, elmRect);
Transform transform = this.Transform;
if (transform != null)
{
_drawGroup.Transform = transform;
}
if (!elmRect.IsEmpty && !elmRect.Width.Equals(0) && !elmRect.Height.Equals(0))
{
// Elements such as "pattern" are also rendered by this renderer, so we make sure we are
// dealing with the root SVG element...
if (parentNode != null && parentNode.NodeType == XmlNodeType.Document)
{
_drawGroup.ClipGeometry = new RectangleGeometry(elmRect);
}
else
{
if (transform != null)
{
// We have already applied the transform, which will translate to the start point...
if (transform is TranslateTransform)
{
_drawGroup.ClipGeometry = new RectangleGeometry(
new Rect(0, 0, elmRect.Width, elmRect.Height));
}
else
{
_drawGroup.ClipGeometry = new RectangleGeometry(elmRect);
}
}
else
{
_drawGroup.ClipGeometry = new RectangleGeometry(elmRect);
}
}
}
}
/// <summary>
/// Performs the conversion of a valid SVG source file to the <see cref="DrawingGroup"/>.
/// </summary>
/// <param name="svgSource">A <see cref="Uri"/> defining the path to the SVG source.</param>
/// <param name="settings">
/// This specifies the settings used by the rendering or drawing engine.
/// If this is <see langword="null"/>, the default settings is used.
/// </param>
/// <returns>
/// This returns <see cref="DrawingGroup"/> if successful; otherwise, it
/// returns <see langword="null"/>.
/// </returns>
protected virtual DrawingGroup CreateDrawing(Uri svgSource, WpfDrawingSettings settings)
{
if (svgSource == null)
{
return(null);
}
string scheme = svgSource.Scheme;
if (string.IsNullOrWhiteSpace(scheme))
{
return(null);
}
var comparer = StringComparison.OrdinalIgnoreCase;
DrawingGroup drawing = null;
switch (scheme)
{
case "file":
//case "ftp":
case "https":
case "http":
using (FileSvgReader reader = new FileSvgReader(settings))
{
drawing = reader.Read(svgSource);
}
break;
case "pack":
StreamResourceInfo svgStreamInfo = null;
if (svgSource.ToString().IndexOf("siteoforigin", comparer) >= 0)
{
svgStreamInfo = Application.GetRemoteStream(svgSource);
}
else
{
svgStreamInfo = Application.GetResourceStream(svgSource);
}
Stream svgStream = (svgStreamInfo != null) ? svgStreamInfo.Stream : null;
if (svgStream != null)
{
string fileExt = Path.GetExtension(svgSource.ToString());
bool isCompressed = !string.IsNullOrWhiteSpace(fileExt) &&
string.Equals(fileExt, ".svgz", comparer);
if (isCompressed)
{
using (svgStream)
{
using (GZipStream zipStream = new GZipStream(svgStream, CompressionMode.Decompress))
{
using (FileSvgReader reader = new FileSvgReader(settings))
{
drawing = reader.Read(zipStream);
}
}
}
}
else
{
using (svgStream)
{
using (FileSvgReader reader = new FileSvgReader(settings))
{
drawing = reader.Read(svgStream);
}
}
}
}
break;
case "data":
var sourceData = svgSource.OriginalString.Replace(" ", "");
int nColon = sourceData.IndexOf(":", comparer);
int nSemiColon = sourceData.IndexOf(";", comparer);
int nComma = sourceData.IndexOf(",", comparer);
string sMimeType = sourceData.Substring(nColon + 1, nSemiColon - nColon - 1);
string sEncoding = sourceData.Substring(nSemiColon + 1, nComma - nSemiColon - 1);
if (string.Equals(sMimeType.Trim(), "image/svg+xml", comparer) &&
string.Equals(sEncoding.Trim(), "base64", comparer))
{
string sContent = SvgObject.RemoveWhitespace(sourceData.Substring(nComma + 1));
byte[] imageBytes = Convert.FromBase64CharArray(sContent.ToCharArray(),
0, sContent.Length);
using (var stream = new MemoryStream(imageBytes))
{
using (var reader = new FileSvgReader(settings))
{
drawing = reader.Read(stream);
}
}
}
break;
}
return(drawing);
}
private ImageSource GetImage(SvgImageElement element, WpfDrawingContext context)
{
bool isSavingImages = _saveImages;
string imagesDir = _saveDirectory;
if (context != null && context.Settings.IncludeRuntime == false)
{
isSavingImages = true;
if (string.IsNullOrWhiteSpace(_saveDirectory) ||
Directory.Exists(_saveDirectory) == false)
{
var assembly = Assembly.GetExecutingAssembly();
if (assembly != null)
{
imagesDir = Path.GetDirectoryName(assembly.Location);
}
}
}
var comparer = StringComparison.OrdinalIgnoreCase;
string sURI = element.Href.AnimVal.Replace(" ", "");
int nColon = sURI.IndexOf(":", comparer);
int nSemiColon = sURI.IndexOf(";", comparer);
int nComma = sURI.IndexOf(",", comparer);
string sMimeType = sURI.Substring(nColon + 1, nSemiColon - nColon - 1);
string sContent = SvgObject.RemoveWhitespace(sURI.Substring(nComma + 1));
byte[] imageBytes = Convert.FromBase64CharArray(sContent.ToCharArray(),
0, sContent.Length);
bool isGZiped = sContent.StartsWith(SvgObject.GZipSignature, StringComparison.Ordinal);
if (string.Equals(sMimeType, "image/svg+xml", comparer))
{
if (isGZiped)
{
using (var stream = new MemoryStream(imageBytes))
{
using (GZipStream zipStream = new GZipStream(stream, CompressionMode.Decompress))
{
using (var reader = new FileSvgReader(context.Settings))
return(new DrawingImage(reader.Read(zipStream)));
}
}
}
else
{
using (var stream = new MemoryStream(imageBytes))
{
using (var reader = new FileSvgReader(context.Settings))
return(new DrawingImage(reader.Read(stream)));
}
}
}
BitmapImage imageSource = new BitmapImage();
imageSource.BeginInit();
imageSource.CreateOptions = BitmapCreateOptions.PreservePixelFormat;
imageSource.StreamSource = new MemoryStream(imageBytes);
imageSource.EndInit();
imageSource.Freeze();
if (isSavingImages && !string.IsNullOrWhiteSpace(imagesDir) &&
Directory.Exists(imagesDir))
{
var imagePath = this.GetImagePath(imagesDir);
BitmapEncoder encoder = new PngBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(imageSource));
using (var fileStream = new FileStream(imagePath, FileMode.Create))
{
encoder.Save(fileStream);
}
BitmapImage savedSource = new BitmapImage();
savedSource.BeginInit();
savedSource.CacheOption = BitmapCacheOption.OnLoad;
savedSource.CreateOptions = BitmapCreateOptions.PreservePixelFormat;
savedSource.UriSource = new Uri(imagePath);
savedSource.EndInit();
savedSource.Freeze();
return(savedSource);
}
return(imageSource);
}
private ImageSource GetImage(SvgImageElement element, WpfDrawingContext context)
{
bool isSavingImages = _saveImages;
string imagesDir = _saveDirectory;
if (context != null && context.Settings.IncludeRuntime == false)
{
isSavingImages = true;
if (string.IsNullOrWhiteSpace(_saveDirectory) ||
Directory.Exists(_saveDirectory) == false)
{
var assembly = Assembly.GetExecutingAssembly();
if (assembly != null)
{
imagesDir = PathUtils.Combine(assembly);
}
}
}
var comparer = StringComparison.OrdinalIgnoreCase;
string sURI = element.Href.AnimVal.Replace(" ", string.Empty);
int nColon = sURI.IndexOf(":", comparer);
int nSemiColon = sURI.IndexOf(";", comparer);
int nComma = sURI.IndexOf(",", comparer);
string sMimeType = sURI.Substring(nColon + 1, nSemiColon - nColon - 1);
var sContent = SvgObject.RemoveWhitespace(sURI.Substring(nComma + 1));
var imageBytes = Convert.FromBase64CharArray(sContent.ToCharArray(), 0, sContent.Length);
bool isGZiped = sContent.StartsWith(SvgConstants.GZipSignature, StringComparison.Ordinal);
bool isSvgOrXml = sContent.StartsWith(SvgConstants.SvgSignature, StringComparison.Ordinal) ||
sContent.StartsWith(SvgConstants.XmlSignature, StringComparison.Ordinal);
if (string.Equals(sMimeType, "image/svg+xml", comparer) || isSvgOrXml)
{
if (isGZiped)
{
using (var stream = new MemoryStream(imageBytes))
{
using (GZipStream zipStream = new GZipStream(stream, CompressionMode.Decompress))
{
using (var reader = new FileSvgReader(context.Settings, true))
{
return(new DrawingImage(reader.Read(zipStream)));
}
}
}
}
else
{
using (var stream = new MemoryStream(imageBytes))
{
using (var reader = new FileSvgReader(context.Settings, true))
{
return(new DrawingImage(reader.Read(stream)));
}
}
}
}
var memStream = new MemoryStream(imageBytes);
BitmapImage imageSource = new BitmapImage();
imageSource.BeginInit();
imageSource.StreamSource = memStream;
imageSource.CacheOption = BitmapCacheOption.OnLoad;
imageSource.CreateOptions = BitmapCreateOptions.PreservePixelFormat;
imageSource.EndInit();
string imagePath = null;
if (isSavingImages && !string.IsNullOrWhiteSpace(imagesDir) && Directory.Exists(imagesDir))
{
imagePath = this.GetImagePath(imagesDir);
BitmapEncoder encoder = new PngBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(imageSource));
using (var fileStream = new FileStream(imagePath, FileMode.Create))
{
encoder.Save(fileStream);
}
imageSource.CreateOptions = BitmapCreateOptions.PreservePixelFormat | BitmapCreateOptions.IgnoreImageCache;
imageSource.UriSource = new Uri(imagePath);
//imageSource.StreamSource.Dispose();
//imageSource = null;
//BitmapImage savedSource = new BitmapImage();
//savedSource.BeginInit();
//savedSource.CacheOption = BitmapCacheOption.None;
//savedSource.CreateOptions = BitmapCreateOptions.PreservePixelFormat | BitmapCreateOptions.IgnoreImageCache;
//savedSource.UriSource = new Uri(imagePath);
//savedSource.EndInit();
//savedSource.Freeze();
//if (_imageCreated != null)
//{
// var eventArgs = new EmbeddedImageSerializerArgs(imagePath, savedSource);
// _imageCreated.Invoke(this, eventArgs);
//}
//return savedSource;
}
else if (_converterFallback)
{
//if (_imageCreated != null)
//{
// var eventArgs = new EmbeddedImageSerializerArgs(imagePath, imageSource);
// _imageCreated.Invoke(this, eventArgs);
//}
return(new EmbeddedBitmapSource(memStream, imageSource));
}
if (_imageCreated != null)
{
var eventArgs = new EmbeddedImageSerializerArgs(imagePath, imageSource);
_imageCreated.Invoke(this, eventArgs);
}
imageSource.Freeze();
return(imageSource);
}
public override void BeforeRender(WpfDrawingRenderer renderer)
{
base.BeforeRender(renderer);
WpfDrawingContext context = renderer.Context;
if (context.Count == 0)
{
_drawGroup = new DrawingGroup();
context.Push(_drawGroup);
context.Root = _drawGroup;
}
else if (context.Count == 1)
{
DrawingGroup currentGroup = context.Peek();
if (currentGroup == null)
{
throw new InvalidOperationException("An existing group is expected.");
}
if (currentGroup == context.Root)
{
if (context.IsFragment)
{
// Do not add extra layer to fragments...
_drawGroup = currentGroup;
}
else
{
_drawGroup = new DrawingGroup();
SvgObject.SetName(_drawGroup, SvgObject.DrawLayer);
if (context.IncludeRuntime)
{
SvgLink.SetKey(_drawGroup, SvgObject.DrawLayer);
}
currentGroup.Children.Add(_drawGroup);
context.Push(_drawGroup);
}
}
else
{
_drawGroup = new DrawingGroup();
currentGroup.Children.Add(_drawGroup);
context.Push(_drawGroup);
}
}
else
{
_drawGroup = new DrawingGroup();
DrawingGroup currentGroup = context.Peek();
if (currentGroup == null)
{
throw new InvalidOperationException("An existing group is expected.");
}
currentGroup.Children.Add(_drawGroup);
context.Push(_drawGroup);
}
SvgSvgElement svgElm = (SvgSvgElement)_svgElement;
double x = Math.Round(svgElm.X.AnimVal.Value, 4);
double y = Math.Round(svgElm.Y.AnimVal.Value, 4);
double width = Math.Round(svgElm.Width.AnimVal.Value, 4);
double height = Math.Round(svgElm.Height.AnimVal.Value, 4);
if (width < 0 || height < 0)
{
// For invalid dimension, prevent the drawing of the children...
_isRecursive = true;
return;
}
Rect elmRect = new Rect(x, y, width, height);
XmlNode parentNode = _svgElement.ParentNode;
ISvgFitToViewBox fitToView = svgElm as ISvgFitToViewBox;
ISvgAnimatedPreserveAspectRatio preserveAspectRatio = null;
if (fitToView != null && fitToView.PreserveAspectRatio != null)
{
preserveAspectRatio = fitToView.PreserveAspectRatio;
ISvgAnimatedRect animRect = fitToView.ViewBox;
if (animRect != null)
{
ISvgRect viewRect = animRect.AnimVal;
if (viewRect != null)
{
Rect wpfViewRect = WpfConvert.ToRect(viewRect);
if (!wpfViewRect.IsEmpty && wpfViewRect.Width > 0 && wpfViewRect.Height > 0)
{
elmRect = wpfViewRect;
}
}
}
}
Transform transform = null;
var aspectRatio = (preserveAspectRatio != null) ? preserveAspectRatio.AnimVal : null;
if (parentNode.NodeType != XmlNodeType.Document ||
(aspectRatio != null && aspectRatio.Align == SvgPreserveAspectRatioType.None))
{
FitToViewbox(context, elmRect);
transform = this.Transform;
if (transform != null)
{
_drawGroup.Transform = transform;
}
}
if (!elmRect.IsEmpty && !elmRect.Width.Equals(0) && !elmRect.Height.Equals(0))
{
// Elements such as "pattern" are also rendered by this renderer, so we make sure we are
// dealing with the root SVG element...
if (parentNode != null && parentNode.NodeType == XmlNodeType.Document)
{
_drawGroup.ClipGeometry = new RectangleGeometry(elmRect);
}
else
{
if (transform != null)
{
// We have already applied the transform, which will translate to the start point...
if (transform is TranslateTransform)
{
//_drawGroup.ClipGeometry = new RectangleGeometry(
// new Rect(0, 0, elmRect.Width, elmRect.Height));
}
else
{
_drawGroup.ClipGeometry = new RectangleGeometry(elmRect);
}
}
else
{
_drawGroup.ClipGeometry = new RectangleGeometry(elmRect);
}
}
}
}
/// <summary>
/// This converts the SVG resource specified by the Uri to <see cref="DrawingGroup"/>.
/// </summary>
/// <param name="svgSource">A <see cref="Uri"/> specifying the source of the SVG resource.</param>
/// <returns>A <see cref="DrawingGroup"/> of the converted SVG resource.</returns>
protected virtual DrawingGroup GetDrawing(Uri svgSource)
{
string scheme = null;
// A little hack to display preview in design mode: The design mode Uri is not absolute.
bool designTime = DesignerProperties.GetIsInDesignMode(new DependencyObject());
if (designTime && svgSource.IsAbsoluteUri == false)
{
scheme = "pack";
}
else
{
scheme = svgSource.Scheme;
}
if (string.IsNullOrWhiteSpace(scheme))
{
return(null);
}
WpfDrawingSettings settings = new WpfDrawingSettings();
settings.IncludeRuntime = _includeRuntime;
settings.TextAsGeometry = _textAsGeometry;
settings.OptimizePath = _optimizePath;
if (_culture != null)
{
settings.CultureInfo = _culture;
}
switch (scheme)
{
case "file":
//case "ftp":
case "https":
case "http":
using (FileSvgReader reader = new FileSvgReader(settings))
{
DrawingGroup drawGroup = reader.Read(svgSource);
if (drawGroup != null)
{
return(drawGroup);
}
}
break;
case "pack":
StreamResourceInfo svgStreamInfo = null;
if (svgSource.ToString().IndexOf("siteoforigin", StringComparison.OrdinalIgnoreCase) >= 0)
{
svgStreamInfo = Application.GetRemoteStream(svgSource);
}
else
{
svgStreamInfo = Application.GetResourceStream(svgSource);
}
Stream svgStream = (svgStreamInfo != null) ? svgStreamInfo.Stream : null;
if (svgStream != null)
{
string fileExt = Path.GetExtension(svgSource.ToString());
bool isCompressed = !string.IsNullOrWhiteSpace(fileExt) &&
string.Equals(fileExt, ".svgz", StringComparison.OrdinalIgnoreCase);
if (isCompressed)
{
using (svgStream)
{
using (var zipStream = new GZipStream(svgStream, CompressionMode.Decompress))
{
using (FileSvgReader reader = new FileSvgReader(settings))
{
DrawingGroup drawGroup = reader.Read(zipStream);
if (drawGroup != null)
{
return(drawGroup);
}
}
}
}
}
else
{
using (svgStream)
{
using (FileSvgReader reader = new FileSvgReader(settings))
{
DrawingGroup drawGroup = reader.Read(svgStream);
if (drawGroup != null)
{
return(drawGroup);
}
}
}
}
}
break;
case "data":
var sourceData = svgSource.OriginalString.Replace(" ", "");
int nColon = sourceData.IndexOf(":", StringComparison.OrdinalIgnoreCase);
int nSemiColon = sourceData.IndexOf(";", StringComparison.OrdinalIgnoreCase);
int nComma = sourceData.IndexOf(",", StringComparison.OrdinalIgnoreCase);
string sMimeType = sourceData.Substring(nColon + 1, nSemiColon - nColon - 1);
string sEncoding = sourceData.Substring(nSemiColon + 1, nComma - nSemiColon - 1);
if (string.Equals(sMimeType.Trim(), "image/svg+xml", StringComparison.OrdinalIgnoreCase) &&
string.Equals(sEncoding.Trim(), "base64", StringComparison.OrdinalIgnoreCase))
{
string sContent = SvgObject.RemoveWhitespace(sourceData.Substring(nComma + 1));
byte[] imageBytes = Convert.FromBase64CharArray(sContent.ToCharArray(),
0, sContent.Length);
using (var stream = new MemoryStream(imageBytes))
{
using (var reader = new FileSvgReader(settings))
{
DrawingGroup drawGroup = reader.Read(stream);
if (drawGroup != null)
{
return(drawGroup);
}
}
}
}
break;
}
return(null);
}
private bool HitTestDrawing(DrawingGroup group, Point pt, out Drawing hitDrawing)
{
hitDrawing = null;
bool isHit = false;
if (group.Bounds.Contains(pt))
{
var transform = group.Transform;
if (transform != null)
{
var matrix = transform.Value;
if (matrix != null && matrix.IsIdentity == false)
{
pt = transform.Inverse.Transform(pt);
}
}
DrawingGroup groupDrawing = null;
GlyphRunDrawing glyRunDrawing = null;
GeometryDrawing geometryDrawing = null;
DrawingCollection drawings = group.Children;
for (int i = drawings.Count - 1; i >= 0; i--)
{
Drawing drawing = drawings[i];
if (TryCast.Cast(drawing, out geometryDrawing))
{
if (HitTestDrawing(geometryDrawing, pt))
{
hitDrawing = drawing;
int orderNumber = SvgObject.GetOrder(drawing);
if (orderNumber >= 0)
{
_hitList[orderNumber] = drawing;
isHit = false;
}
else
{
return(true);
}
}
}
else if (TryCast.Cast(drawing, out groupDrawing))
{
SvgObjectType objectType = SvgObject.GetType(groupDrawing);
//if (objectType == SvgObjectType.Text && groupDrawing.Bounds.Contains(pt))
if (objectType == SvgObjectType.Text)
{
hitDrawing = drawing;
int orderNumber = SvgObject.GetOrder(drawing);
if (orderNumber >= 0)
{
_hitList[orderNumber] = drawing;
isHit = false;
}
else
{
return(true);
}
}
if (HitTestDrawing(groupDrawing, pt, out hitDrawing))
{
int orderNumber = SvgObject.GetOrder(drawing);
if (orderNumber >= 0)
{
_hitList[orderNumber] = drawing;
isHit = false;
}
else
{
return(true);
}
}
}
else if (TryCast.Cast(drawing, out glyRunDrawing))
{
if (HitTestDrawing(glyRunDrawing, pt))
{
hitDrawing = glyRunDrawing;
int orderNumber = SvgObject.GetOrder(drawing);
if (orderNumber >= 0)
{
_hitList[orderNumber] = drawing;
isHit = false;
}
else
{
return(true);
}
}
}
}
string uniqueId = SvgObject.GetUniqueId(group);
if (!string.IsNullOrWhiteSpace(uniqueId))
{
_hitGroup = group;
}
}
return(isHit);
}
private bool HitTestDrawing(DrawingGroup group, Point pt, out Drawing hitDrawing, bool isText = false)
{
hitDrawing = null;
bool isHit = false;
if (!group.Bounds.Contains(pt))
{
return(isHit);
}
var transform = group.Transform;
if (transform != null && !transform.Value.IsIdentity)
{
pt = transform.Inverse.Transform(pt);
}
var groupHitPath = _hitPath;
DrawingGroup groupDrawing = null;
GlyphRunDrawing glyRunDrawing = null;
GeometryDrawing geometryDrawing = null;
DrawingCollection drawings = group.Children;
for (int i = drawings.Count - 1; i >= 0; i--)
{
Drawing drawing = drawings[i];
// _hitPath = _hitPath.AddChild(SvgObject.GetUniqueId(drawing));
if (TryCast.Cast(drawing, out geometryDrawing))
{
if (HitTestDrawing(geometryDrawing, pt))
{
// _hitPath = _hitPath.AddChild(SvgObject.GetUniqueId(geometryDrawing));
hitDrawing = drawing;
int orderNumber = SvgObject.GetOrder(drawing);
if (orderNumber >= 0)
{
_hitList[orderNumber] = drawing;
_hitPaths[orderNumber] = _hitPath.AddChild(SvgObject.GetUniqueId(geometryDrawing));
isHit = false;
}
else
{
orderNumber = SvgObject.GetOrder(group);
if (orderNumber >= 0)
{
_hitList[orderNumber] = group;
_hitPaths[orderNumber] = _hitPath.AddChild(SvgObject.GetUniqueId(group));
}
if (!string.IsNullOrWhiteSpace(SvgObject.GetUniqueId(group)))
{
_hitGroup = group;
}
return(true);
}
}
}
else if (TryCast.Cast(drawing, out groupDrawing))
{
_hitPath = groupHitPath.AddChild(SvgObject.GetUniqueId(groupDrawing));
SvgObjectType objectType = SvgObject.GetType(groupDrawing);
// if (objectType == SvgObjectType.Text && groupDrawing.Bounds.Contains(pt))
if (objectType == SvgObjectType.Text && this.HitTestText(groupDrawing, pt, out hitDrawing))
// if (objectType == SvgObjectType.Text)
{
hitDrawing = drawing;
int orderNumber = SvgObject.GetOrder(drawing);
if (orderNumber >= 0)
{
_hitList[orderNumber] = drawing;
_hitPaths[orderNumber] = _hitPath;
isHit = false;
}
else
{
return(true);
}
}
else
{
// _hitPath = _hitPath.AddChild(SvgObject.GetUniqueId(hitDrawing));
var currentPath = _hitPath;
try
{
if (HitTestDrawing(groupDrawing, pt, out hitDrawing))
{
// int orderNumber = SvgObject.GetOrder(drawing);
int orderNumber = SvgObject.GetOrder(hitDrawing);
if (orderNumber >= 0)
{
_hitList[orderNumber] = drawing;
_hitPaths[orderNumber] = _hitPath.AddChild(SvgObject.GetUniqueId(hitDrawing));
isHit = false;
}
else
{
orderNumber = SvgObject.GetOrder(groupDrawing);
if (orderNumber >= 0)
{
_hitList[orderNumber] = groupDrawing;
_hitPaths[orderNumber] = _hitPath.AddChild(SvgObject.GetUniqueId(groupDrawing));
}
return(true);
}
}
}
finally
{
_hitPath = currentPath;
}
}
}
else if (TryCast.Cast(drawing, out glyRunDrawing))
{
if (HitTestDrawing(glyRunDrawing, pt))
{
// _hitPath = _hitPath.AddChild(SvgObject.GetUniqueId(glyRunDrawing));
hitDrawing = glyRunDrawing;
int orderNumber = SvgObject.GetOrder(drawing);
if (orderNumber >= 0)
{
_hitList[orderNumber] = drawing;
_hitPaths[orderNumber] = _hitPath.AddChild(SvgObject.GetUniqueId(glyRunDrawing));
isHit = false;
}
else
{
return(true);
}
}
}
}
string uniqueId = SvgObject.GetUniqueId(group);
if (!string.IsNullOrWhiteSpace(uniqueId))
{
_hitGroup = group;
}
return(isHit);
}
public override void AfterRender(WpfDrawingRenderer renderer)
{
if (_horzRenderer != null)
{
_horzRenderer.Uninitialize();
_horzRenderer = null;
}
if (_vertRenderer != null)
{
_vertRenderer.Uninitialize();
_vertRenderer = null;
}
if (_pathRenderer != null)
{
_pathRenderer.Uninitialize();
_pathRenderer = null;
}
if (_drawContext != null)
{
_drawContext.Close();
_drawContext = null;
}
WpfDrawingContext context = renderer.Context;
// TODO-PAUL: Testing this for validity...
// Remove the GuidelineSet from the groups added by the FormattedText to reduced the
// size of output XAML...
if (_drawGroup != null)
{
ResetGuidelineSet(_drawGroup);
}
if (context.IncludeRuntime)
{
if (_drawGroup != null)
{
// Add the element/object type...
SvgObject.SetType(_drawGroup, SvgObjectType.Text);
// Add title for tooltips, if any...
SvgTitleElement titleElement = _svgElement.SelectSingleNode("title") as SvgTitleElement;
if (titleElement != null)
{
string titleValue = titleElement.InnerText;
if (!string.IsNullOrWhiteSpace(titleValue))
{
SvgObject.SetTitle(_drawGroup, titleValue);
}
}
}
}
if (!_isGroupAdded)
{
if (_drawGroup != null)
{
if (_isTextPath || _drawGroup.Transform != null || _drawGroup.ClipGeometry != null)
{
DrawingGroup curGroup = _context.Peek();
Debug.Assert(curGroup != null);
if (curGroup != null)
{
curGroup.Children.Add(_drawGroup);
}
}
else if (_drawGroup.Children.Count != 0)
{
DrawingGroup firstGroup = _drawGroup.Children[0] as DrawingGroup;
if (firstGroup != null && firstGroup.Children.Count != 0)
{
//Drawing firstDrawing = firstGroup.Children[0];
DrawingGroup curGroup = _context.Peek();
Debug.Assert(curGroup != null);
if (curGroup != null)
{
curGroup.Children.Add(_drawGroup);
}
}
}
}
}
else
{
if (_drawGroup != null)
{
DrawingGroup currentGroup = context.Peek();
if (currentGroup == null || currentGroup != _drawGroup)
{
throw new InvalidOperationException("An existing group is expected.");
}
context.Pop();
}
}
_context = null;
_drawGroup = null;
base.AfterRender(renderer);
}
private Drawing PerformHitTest(Rect rect, IntersectionDetail detail)
{
if (_svgDrawing == null)
{
return(null);
}
var rectDisplay = _displayTransform.TransformBounds(rect);
var geomDisplay = new RectangleGeometry(rectDisplay);
DrawingGroup groupDrawing = null;
GlyphRunDrawing glyRunDrawing = null;
GeometryDrawing geometryDrawing = null;
Drawing foundDrawing = null;
DrawingCollection drawings = _svgDrawing.Children;
for (int i = drawings.Count - 1; i >= 0; i--)
{
Drawing drawing = drawings[i];
if (TryCast.Cast(drawing, out geometryDrawing))
{
if (HitTestDrawing(geometryDrawing, geomDisplay, detail))
{
string uniqueId = SvgObject.GetUniqueId(drawing);
if (!string.IsNullOrWhiteSpace(uniqueId))
{
foundDrawing = drawing;
break;
}
}
}
else if (TryCast.Cast(drawing, out groupDrawing))
{
if (SvgObject.GetType(groupDrawing) == SvgObjectType.Text)
{
var textBounds = new RectangleGeometry(groupDrawing.Bounds);
if (textBounds.FillContainsWithDetail(geomDisplay) == detail)
{
string uniqueId = SvgObject.GetUniqueId(drawing);
if (!string.IsNullOrWhiteSpace(uniqueId))
{
foundDrawing = drawing;
break;
}
}
}
if (HitTestDrawing(groupDrawing, geomDisplay, out foundDrawing, detail))
{
string uniqueId = SvgObject.GetUniqueId(drawing);
if (!string.IsNullOrWhiteSpace(uniqueId))
{
foundDrawing = drawing;
break;
}
}
}
else if (TryCast.Cast(drawing, out glyRunDrawing))
{
if (HitTestDrawing(glyRunDrawing, geomDisplay, detail))
{
foundDrawing = drawing;
break;
}
}
}
return(foundDrawing);
}
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;
bool ownedGroup = true;
if (drawGroup == null)
{
drawGroup = context.Peek();
ownedGroup = false;
}
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)
{
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);
}
}
}
public override void Render(WpfDrawingRenderer renderer)
{
_isAggregated = false;
if (_isLayer)
{
base.Render(renderer);
return;
}
WpfDrawingContext context = renderer.Context;
Geometry clipGeom = this.ClipGeometry;
Transform transform = this.Transform;
float opacityValue = -1;
SvgAElement element = (SvgAElement)_svgElement;
string opacity = element.GetPropertyValue("opacity");
if (string.IsNullOrWhiteSpace(opacity))
{
opacity = element.GetPropertyValue("opacity");
}
if (opacity != null && opacity.Length > 0)
{
opacityValue = (float)SvgNumber.ParseNumber(opacity);
opacityValue = Math.Min(opacityValue, 1);
opacityValue = Math.Max(opacityValue, 0);
}
WpfLinkVisitor linkVisitor = context.LinkVisitor;
if (linkVisitor != null || clipGeom != null || transform != null || opacityValue >= 0)
{
_drawGroup = new DrawingGroup();
string elementId = this.GetElementName();
if (!string.IsNullOrWhiteSpace(elementId) && !context.IsRegisteredId(elementId))
{
_drawGroup.SetValue(FrameworkElement.NameProperty, elementId);
context.RegisterId(elementId);
if (context.IncludeRuntime)
{
SvgObject.SetId(_drawGroup, elementId);
}
}
string elementClass = this.GetElementClass();
if (!string.IsNullOrWhiteSpace(elementClass) && context.IncludeRuntime)
{
SvgObject.SetClass(_drawGroup, elementClass);
}
DrawingGroup currentGroup = context.Peek();
if (currentGroup == null)
{
throw new InvalidOperationException("An existing group is expected.");
}
if (linkVisitor != null && linkVisitor.Aggregates && context.Links != null)
{
if (!linkVisitor.Exists(elementId))
{
context.Links.Children.Add(_drawGroup);
}
}
else
{
currentGroup.Children.Add(_drawGroup);
}
context.Push(_drawGroup);
if (clipGeom != null)
{
_drawGroup.ClipGeometry = clipGeom;
}
if (transform != null)
{
_drawGroup.Transform = transform;
}
if (opacityValue >= 0)
{
_drawGroup.Opacity = opacityValue;
}
string sVisibility = element.GetPropertyValue("visibility");
string sDisplay = element.GetPropertyValue("display");
if (string.Equals(sVisibility, "hidden") || string.Equals(sDisplay, "none"))
{
opacityValue = 0;
_drawGroup.Opacity = 0;
}
if (linkVisitor != null)
{
linkVisitor.Visit(_drawGroup, element, context, opacityValue);
_isAggregated = linkVisitor.IsAggregate;
}
}
base.Render(renderer);
}