public WpfRendering(SvgElement element)
: base(element)
{
_maskUnits = SvgUnitType.UserSpaceOnUse;
_clipPathUnits = SvgUnitType.UserSpaceOnUse;
_maskContentUnits = SvgUnitType.UserSpaceOnUse;
}
public SvgContextMapper(int height, int width, SvgUnitType unitType, Font font)
{
Height = height;
Width = width;
UnitType = unitType;
Font = font;
}
/// <summary>
/// Adjust SVG to fit content with return of SvgDocument
/// </summary>
/// <param name="svgXml"></param>
/// <param name="docWidth">Desired document width</param>
/// <param name="docUnits"></param>
/// <returns></returns>
public static SvgDocument AdjustSvgDocumentToFitContent(
string svgXml,
float docWidth,
SvgUnitType docUnits)
{
string svgXml2 = null;
SvgDocument doc = null;
RectangleF bb = new RectangleF();
if (Lex.IsUndefined(svgXml))
{
return(null);
}
try
{
doc = SvgDocument.FromSvg <SvgDocument>(svgXml);
SizeF dr = doc.GetDimensions(); // document dimensions in current units (e.g. pixel, inch, millimeter...)
SvgViewBox vb = doc.ViewBox; // internal coord view box (viewport) (undefined initially)
//SvgAspectRatio aspectRatio = doc.AspectRatio; // aspect of the viewport.
//RectangleF docBounds = doc.Bounds; // bounds of the svg element
//SvgUnit docLeft = doc.X; // left position
//SvgUnit docTop = doc.Y; // top position
//SvgUnit docHeight = doc.Height; // height
//SvgUnit docWidth = doc.Width; // width
RectangleF b = doc.Bounds; // unitless bounds of the document svg elements
float dy = 5, dx = 5; // padding around the doc elements (this is arbitrary, needs work)
//if (b.Width > 0 && b.Height > 0) // add padding keeping aspect ration (not necessary)
// dx = dy * (b.Width / b.Height);
bb = new RectangleF(b.X - dx, b.Y - dy, b.Width + 2 * dx, b.Height + 2 * dy);
float bbLeft = bb.Left;
float bbTop = bb.Top;
float bbWidth = bb.Width;
if (bbWidth <= 0)
{
bbWidth = 1; // avoid possible zero divide
}
float bbHeight = bb.Height;
SvgViewBox vb2 = new SvgViewBox(bbLeft, bbTop, bbWidth, bbHeight); // adjust the view box to just contain the image elements
doc.ViewBox = vb2;
docUnits = doc.Width.Type;
doc.Width = new SvgUnit(docUnits, docWidth);
float docHeight = docWidth * (bbHeight / bbWidth);
doc.Height = new SvgUnit(docUnits, docHeight);
doc.X = new SvgUnit(docUnits, 0);
doc.Y = new SvgUnit(docUnits, 0);
if (DebugMx.True && ClientState.IsDeveloper) // debug - dump xml and bitmap
{
try
{
FileUtil.WriteFile(@"c:\downloads\SvgUtilTestXml.html", svgXml);
//bmp.Save(@"c:\downloads\SvgUtilTestBmp.bmp");
}
catch (Exception ex) { ex = ex; }
}
return(doc);
}
catch (Exception ex)
{
return(null); // ignore exceptions for now
}
}
public SvgCoordinateContext MapPoint(Point point, double rotation, SvgUnitType unitType)
{
if (point.Y < 0)
{
point.Y = Math.Abs(point.Y) - _offset.X;
}
else
{
point.Y = Height - point.Y;
}
var svgStartX = new SvgUnit(unitType, (float)point.X);
var svgStartY = new SvgUnit(unitType, (float)point.Y);
var context = new SvgCoordinateContext
{
X = svgStartX,
Y = svgStartY,
Rotation = new SvgRotate((float)-rotation, svgStartX, svgStartY)
};
return context;
}
/// <summary>
/// Initializes a new instance of the <see cref="SvgUnit"/> struct.
/// </summary>
/// <param name="value">The value.</param>
public SvgUnit(float value)
{
this._value = value;
this._type = SvgUnitType.User;
this._isEmpty = (this._value == 0.0f);
this._deviceValue = null;
}
private Brush GetLinearGradientBrush(SvgLinearGradientElement res, Transform viewBoxTransform = null)
{
GradientStopCollection gradientStops = GetGradientStops(res.Stops);
if (gradientStops == null || gradientStops.Count == 0)
{
return(null);
}
double x1 = res.X1.AnimVal.Value;
double x2 = res.X2.AnimVal.Value;
double y1 = res.Y1.AnimVal.Value;
double y2 = res.Y2.AnimVal.Value;
LinearGradientBrush brush = new LinearGradientBrush(gradientStops,
new Point(x1, y1), new Point(x2, y2));
SvgSpreadMethod spreadMethod = SvgSpreadMethod.Pad;
if (res.SpreadMethod != null)
{
spreadMethod = (SvgSpreadMethod)res.SpreadMethod.AnimVal;
if (spreadMethod != SvgSpreadMethod.None)
{
brush.SpreadMethod = WpfConvert.ToSpreadMethod(spreadMethod);
}
}
SvgUnitType mappingMode = SvgUnitType.ObjectBoundingBox;
if (res.GradientUnits != null)
{
mappingMode = (SvgUnitType)res.GradientUnits.AnimVal;
if (mappingMode == SvgUnitType.ObjectBoundingBox)
{
brush.MappingMode = BrushMappingMode.RelativeToBoundingBox;
}
else if (mappingMode == SvgUnitType.UserSpaceOnUse)
{
brush.MappingMode = BrushMappingMode.Absolute;
_isUserSpace = true;
}
}
string colorInterpolation = res.GetPropertyValue("color-interpolation");
if (!string.IsNullOrWhiteSpace(colorInterpolation))
{
if (string.Equals(colorInterpolation, "linearRGB", StringComparison.OrdinalIgnoreCase))
{
brush.ColorInterpolationMode = ColorInterpolationMode.ScRgbLinearInterpolation;
}
else
{
brush.ColorInterpolationMode = ColorInterpolationMode.SRgbLinearInterpolation;
}
}
MatrixTransform transform = GetTransformMatrix(res);
if (transform != null && !transform.Matrix.IsIdentity)
{
if (viewBoxTransform != null && !viewBoxTransform.Value.IsIdentity)
{
TransformGroup group = new TransformGroup();
group.Children.Add(viewBoxTransform);
group.Children.Add(transform);
brush.Transform = group;
}
else
{
brush.Transform = transform;
}
}
else
{
float fLeft = (float)res.X1.AnimVal.Value;
float fRight = (float)res.X2.AnimVal.Value;
float fTop = (float)res.Y1.AnimVal.Value;
float fBottom = (float)res.Y2.AnimVal.Value;
if (mappingMode == SvgUnitType.ObjectBoundingBox)
{
if (!fTop.Equals(fBottom) && !fLeft.Equals(fRight))
{
var drawingBrush = new DrawingBrush();
drawingBrush.Stretch = Stretch.Fill;
drawingBrush.Viewbox = new Rect(0, 0, 1, 1);
var DrawingRect = new GeometryDrawing(brush, null, new RectangleGeometry(new Rect(0, 0, 1, 1)));
drawingBrush.Drawing = DrawingRect;
return(drawingBrush);
}
}
if (fTop.Equals(fBottom))
{
}
else
{
if (fLeft.Equals(fRight))
{
}
else
{
if (fLeft < fRight)
{
if (viewBoxTransform != null && !viewBoxTransform.Value.IsIdentity)
{
brush.Transform = viewBoxTransform;
}
}
else
{
if (viewBoxTransform != null && !viewBoxTransform.Value.IsIdentity)
{
brush.Transform = viewBoxTransform;
}
}
}
}
}
return(brush);
}
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, _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)
{
LineGeometry lineGeometry = geometry as LineGeometry;
WpfGradientFill gradientFill = (WpfGradientFill)strokePaint.PaintServer;
if (gradientFill.IsUserSpace == false && lineGeometry != null)
{
bool invalidGrad = SvgObject.IsEqual(lineGeometry.EndPoint.X, lineGeometry.StartPoint.X) ||
SvgObject.IsEqual(lineGeometry.EndPoint.Y, lineGeometry.StartPoint.Y);
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...
}
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);
}
}
protected void SetClip(WpfDrawingContext context)
{
_clipPathUnits = SvgUnitType.UserSpaceOnUse;
if (_svgElement == null)
{
return;
}
#region Clip with clip
// see http://www.w3.org/TR/SVG/masking.html#OverflowAndClipProperties
if (_svgElement is ISvgSvgElement || _svgElement is ISvgMarkerElement ||
_svgElement is ISvgSymbolElement || _svgElement is ISvgPatternElement)
{
// check overflow property
CssValue overflow = _svgElement.GetComputedCssValue("overflow", string.Empty) as CssValue;
// TODO: clip can have "rect(10 10 auto 10)"
CssPrimitiveValue clip = _svgElement.GetComputedCssValue("clip", string.Empty) as CssPrimitiveValue;
string sOverflow = null;
if (overflow != null && !string.IsNullOrWhiteSpace(overflow.CssText))
{
sOverflow = overflow.CssText;
}
else
{
if (this is ISvgSvgElement)
{
sOverflow = "hidden";
}
}
if (sOverflow != null)
{
// "If the 'overflow' property has a value other than hidden or scroll,
// the property has no effect (i.e., a clipping rectangle is not created)."
if (sOverflow == "hidden" || sOverflow == "scroll")
{
Rect clipRect = Rect.Empty;
if (clip != null && clip.PrimitiveType == CssPrimitiveType.Rect)
{
if (_svgElement is ISvgSvgElement)
{
ISvgSvgElement svgElement = (ISvgSvgElement)_svgElement;
SvgRect viewPort = svgElement.Viewport as SvgRect;
clipRect = WpfConvert.ToRect(viewPort);
ICssRect clipShape = (CssRect)clip.GetRectValue();
if (clipShape.Top.PrimitiveType != CssPrimitiveType.Ident)
{
clipRect.Y += clipShape.Top.GetFloatValue(CssPrimitiveType.Number);
}
if (clipShape.Left.PrimitiveType != CssPrimitiveType.Ident)
{
clipRect.X += clipShape.Left.GetFloatValue(CssPrimitiveType.Number);
}
if (clipShape.Right.PrimitiveType != CssPrimitiveType.Ident)
{
clipRect.Width = (clipRect.Right - clipRect.X) - clipShape.Right.GetFloatValue(CssPrimitiveType.Number);
}
if (clipShape.Bottom.PrimitiveType != CssPrimitiveType.Ident)
{
clipRect.Height = (clipRect.Bottom - clipRect.Y) - clipShape.Bottom.GetFloatValue(CssPrimitiveType.Number);
}
}
}
else if (clip == null || (clip.PrimitiveType == CssPrimitiveType.Ident && clip.GetStringValue() == "auto"))
{
if (_svgElement is ISvgSvgElement)
{
ISvgSvgElement svgElement = (ISvgSvgElement)_svgElement;
SvgRect viewPort = svgElement.Viewport as SvgRect;
clipRect = WpfConvert.ToRect(viewPort);
}
else if (_svgElement is ISvgMarkerElement || _svgElement is ISvgSymbolElement ||
_svgElement is ISvgPatternElement)
{
// TODO: what to do here?
}
}
if (clipRect != Rect.Empty)
{
_clipGeometry = new RectangleGeometry(clipRect);
//gr.SetClip(clipRect);
}
}
}
}
#endregion
#region Clip with clip-path
SvgRenderingHint hint = _svgElement.RenderingHint;
if (hint == SvgRenderingHint.Image)
{
}
// see: http://www.w3.org/TR/SVG/masking.html#EstablishingANewClippingPath
if (hint == SvgRenderingHint.Shape || hint == SvgRenderingHint.Text ||
hint == SvgRenderingHint.Clipping || hint == SvgRenderingHint.Masking ||
hint == SvgRenderingHint.Containment || hint == SvgRenderingHint.Image)
{
CssPrimitiveValue clipPath = _svgElement.GetComputedCssValue("clip-path", string.Empty) as CssPrimitiveValue;
if (clipPath != null && clipPath.PrimitiveType == CssPrimitiveType.Uri)
{
string absoluteUri = _svgElement.ResolveUri(clipPath.GetStringValue());
SvgClipPathElement eClipPath = _svgElement.OwnerDocument.GetNodeByUri(absoluteUri) as SvgClipPathElement;
if (eClipPath != null)
{
GeometryCollection geomColl = CreateClippingRegion(eClipPath, context);
if (geomColl == null || geomColl.Count == 0)
{
return;
}
Geometry gpClip = geomColl[0];
int geomCount = geomColl.Count;
if (geomCount > 1)
{
//GeometryGroup clipGroup = new GeometryGroup();
//clipGroup.Children.Add(gpClip);
for (int k = 1; k < geomCount; k++)
{
gpClip = Geometry.Combine(gpClip, geomColl[k],
GeometryCombineMode.Union, null);
//clipGroup.Children.Add(geomColl[k]);
}
//clipGroup.Children.Reverse();
//gpClip = clipGroup;
}
if (gpClip == null || gpClip.IsEmpty())
{
return;
}
_clipPathUnits = (SvgUnitType)eClipPath.ClipPathUnits.AnimVal;
//if (_clipPathUnits == SvgUnitType.ObjectBoundingBox)
//{
// SvgTransformableElement transElement = _svgElement as SvgTransformableElement;
// if (transElement != null)
// {
// ISvgRect bbox = transElement.GetBBox();
// // scale clipping path
// gpClip.Transform = new ScaleTransform(bbox.Width, bbox.Height);
// //gr.SetClip(gpClip);
// // offset clip
// //TODO--PAUL gr.TranslateClip((float)bbox.X, (float)bbox.Y);
// _clipGeometry = gpClip;
// }
// else
// {
// throw new NotImplementedException("clip-path with SvgUnitType.ObjectBoundingBox "
// + "not supported for this type of element: " + _svgElement.GetType());
// }
//}
//else
{
//gr.SetClip(gpClip);
_clipGeometry = gpClip;
}
}
}
}
#endregion
}
private Brush GetLinearGradientBrush(SvgLinearGradientElement res, Transform viewBoxTransform = null)
{
double x1 = res.X1.AnimVal.Value;
double x2 = res.X2.AnimVal.Value;
double y1 = res.Y1.AnimVal.Value;
double y2 = res.Y2.AnimVal.Value;
GradientStopCollection gradientStops = GetGradientStops(res.Stops);
if (gradientStops == null || gradientStops.Count == 0)
{
return(null);
}
LinearGradientBrush brush = new LinearGradientBrush(gradientStops,
new Point(x1, y1), new Point(x2, y2));
SvgSpreadMethod spreadMethod = SvgSpreadMethod.Pad;
if (res.SpreadMethod != null)
{
spreadMethod = (SvgSpreadMethod)res.SpreadMethod.AnimVal;
if (spreadMethod != SvgSpreadMethod.None)
{
brush.SpreadMethod = WpfConvert.ToSpreadMethod(spreadMethod);
}
}
SvgUnitType mappingMode = SvgUnitType.ObjectBoundingBox;
if (res.GradientUnits != null)
{
mappingMode = (SvgUnitType)res.GradientUnits.AnimVal;
if (mappingMode == SvgUnitType.ObjectBoundingBox)
{
brush.MappingMode = BrushMappingMode.RelativeToBoundingBox;
}
else if (mappingMode == SvgUnitType.UserSpaceOnUse)
{
brush.MappingMode = BrushMappingMode.Absolute;
_isUserSpace = true;
//if (viewBoxTransform == null || viewBoxTransform.Value.IsIdentity)
//{
// if (!elementBounds.IsEmpty)
// {
// viewBoxTransform = FitToViewbox(new SvgRect(x1, y1,
// Math.Abs(x2 - x1), Math.Abs(y2 - y1)), elementBounds);
// }
//}
}
}
string colorInterpolation = res.GetPropertyValue("color-interpolation");
if (!string.IsNullOrWhiteSpace(colorInterpolation))
{
if (colorInterpolation == "linearRGB")
{
brush.ColorInterpolationMode = ColorInterpolationMode.ScRgbLinearInterpolation;
}
else
{
brush.ColorInterpolationMode = ColorInterpolationMode.SRgbLinearInterpolation;
}
}
MatrixTransform transform = GetTransformMatrix(res);
if (transform != null && !transform.Matrix.IsIdentity)
{
if (viewBoxTransform != null && !viewBoxTransform.Value.IsIdentity)
{
TransformGroup group = new TransformGroup();
group.Children.Add(viewBoxTransform);
group.Children.Add(transform);
brush.Transform = group;
}
else
{
brush.Transform = transform;
//brush.StartPoint = new Point(0, 0.5);
//brush.EndPoint = new Point(1, 0.5);
}
//brush.StartPoint = new Point(0, 0);
//brush.EndPoint = new Point(1, 1);
}
else
{
float fLeft = (float)res.X1.AnimVal.Value;
float fRight = (float)res.X2.AnimVal.Value;
float fTop = (float)res.Y1.AnimVal.Value;
float fBottom = (float)res.Y2.AnimVal.Value;
if (mappingMode == SvgUnitType.ObjectBoundingBox)
{
if (!fTop.Equals(fBottom) && !fLeft.Equals(fRight))
{
var drawingBrush = new DrawingBrush();
drawingBrush.Stretch = Stretch.Fill;
drawingBrush.Viewbox = new Rect(0, 0, 1, 1);
var DrawingRect = new GeometryDrawing(brush, null, new RectangleGeometry(new Rect(0, 0, 1, 1)));
drawingBrush.Drawing = DrawingRect;
return(drawingBrush);
}
}
if (fTop.Equals(fBottom))
{
//mode = LinearGradientMode.Horizontal;
//brush.StartPoint = new Point(0, 0.5);
//brush.EndPoint = new Point(1, 0.5);
}
else
{
if (fLeft.Equals(fRight))
{
//mode = LinearGradientMode.Vertical;
//brush.StartPoint = new Point(0.5, 0);
//brush.EndPoint = new Point(0.5, 1);
}
else
{
if (fLeft < fRight)
{
if (viewBoxTransform != null && !viewBoxTransform.Value.IsIdentity)
{
//TransformGroup group = new TransformGroup();
//group.Children.Add(viewBoxTransform);
//group.Children.Add(new RotateTransform(45, 0.5, 0.5));
//brush.Transform = group;
brush.Transform = viewBoxTransform;
}
//else
//{
// brush.RelativeTransform = new RotateTransform(45, 0.5, 0.5);
//}
//mode = LinearGradientMode.ForwardDiagonal;
//brush.EndPoint = new Point(x1, y1 + 1);
//brush.StartPoint = new Point(0, 0);
//brush.EndPoint = new Point(1, 1);
}
else
{
//mode = LinearGradientMode.BackwardDiagonal;
if (viewBoxTransform != null && !viewBoxTransform.Value.IsIdentity)
{
//TransformGroup group = new TransformGroup();
//group.Children.Add(viewBoxTransform);
//group.Children.Add(new RotateTransform(-45, 0.5, 0.5));
//brush.Transform = group;
brush.Transform = viewBoxTransform;
}
//else
//{
// brush.RelativeTransform = new RotateTransform(-45, 0.5, 0.5);
//}
//brush.StartPoint = new Point(0, 0);
//brush.EndPoint = new Point(1, 1);
}
}
}
}
return(brush);
}
public override void BeforeRender(WpfDrawingRenderer renderer)
{
if (renderer == null)
{
return;
}
_maskUnits = SvgUnitType.UserSpaceOnUse;
_clipPathUnits = SvgUnitType.UserSpaceOnUse;
_maskContentUnits = SvgUnitType.UserSpaceOnUse;
WpfDrawingContext context = renderer.Context;
SetQuality(context);
SetTransform(context);
SetClip(context);
SetMask(context);
}
public override void AfterRender(WpfDrawingRenderer renderer)
{
_clipGeometry = null;
_transformMatrix = null;
_maskBrush = null;
_maskUnits = SvgUnitType.UserSpaceOnUse;
_clipPathUnits = SvgUnitType.UserSpaceOnUse;
_maskContentUnits = SvgUnitType.UserSpaceOnUse;
}
/// <summary>
/// Sets unit type attribute
/// </summary>
/// <param name="name">Attribute name</param>
/// <param name="unitType">New unit type</param>
public unsafe void SetAttributeValue(string name, SvgUnitType unitType)
{
SetAttributeValue(name, SvgAttributePodType.UnitType, new IntPtr(&unitType), sizeof(SvgUnitType));
}
private void button1_Click(object sender, EventArgs e)
{
/*
* L 最低
* M 低
* Q 中等
* H 高
*/
FolderBrowserDialog fileDialog = new FolderBrowserDialog
{
Description = @"请选择保存输出图件的文件夹",
ShowNewFolderButton = true,
SelectedPath = Environment.CurrentDirectory,
};
if (fileDialog.ShowDialog() == DialogResult.OK)
{
List <QRCodeUrlInfo> qRCodeUrlInfos = new List <QRCodeUrlInfo>();
try
{
qRCodeUrlInfos = JsonConvert.DeserializeObject <List <QRCodeUrlInfo> >(textBox1.Text);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
try
{
string elStr = comboBox1.SelectedItem.ToString().Split(' ')[0];
foreach (QRCodeUrlInfo qRCodeUrlInfo in qRCodeUrlInfos)
{
WebClient wc = new WebClient();
string xxx = System.Web.HttpUtility.UrlEncode(qRCodeUrlInfo.Url, Encoding.UTF8);
string url = "http://www.liantu.com/savevector.php?text=" + xxx + "&el=" + elStr +
"&m=15&vt=svg";
string svgFileFullName = fileDialog.SelectedPath + "\\" + qRCodeUrlInfo.Name + ".svg";
string svgTempFileFullName = fileDialog.SelectedPath + "\\" + qRCodeUrlInfo.Name + ".Temp.svg";
wc.DownloadFile(url, svgTempFileFullName);
SvgDocument svgDoc = SvgDocument.Open(svgTempFileFullName);
SvgUnit minX = SvgUnit.None;
SvgUnit minY = SvgUnit.None;
SvgUnit maxX = SvgUnit.None;
SvgUnit maxY = SvgUnit.None;
SvgUnit recWidth = SvgUnit.None;
#region 获取真实边框大小
foreach (SvgElement element in svgDoc.Children)
{
if (element is SvgDefinitionList)
{
if (element.Children.Count > 0)
{
if (element.Children[0] is SvgRectangle)
{
SvgRectangle svgRectangle = element.Children[0] as SvgRectangle;
recWidth = svgRectangle.Width;
}
}
SvgDefinitionList svgDefinitionList = element as SvgDefinitionList;
}
if (element is SvgGroup)
{
if (element.Children.Count > 0)
{
if (element.Children[0] is SvgUse)
{
SvgUse svgUse = element.Children[0] as SvgUse;
if (minX.IsNone || minY.IsNone)
{
minX = svgUse.X;
minY = svgUse.Y;
}
else if (minX.Value > svgUse.X)
{
minX = svgUse.X;
}
else if (minY.Value > svgUse.Y)
{
minY = svgUse.Y;
}
}
if (element.Children[element.Children.Count - 1] is SvgUse)
{
SvgUse svgUse = element.Children[element.Children.Count - 1] as SvgUse;
if (maxX.IsNone || maxY.IsNone)
{
maxX = svgUse.X;
maxY = svgUse.Y;
}
else if (maxX.Value < svgUse.X)
{
maxX = svgUse.X;
}
else if (maxY.Value < svgUse.Y)
{
maxY = svgUse.Y;
}
}
}
}
}
maxX.Value = maxX.Value - minX.Value + recWidth.Value;
maxY.Value = maxY.Value - minY.Value + recWidth.Value;
SvgUnitType svgUnitType = minX.Type;
#endregion
int rowNum = Convert.ToInt32(Math.Floor(maxX.Value / recWidth.Value));
#region 进行位置计算
foreach (SvgElement element in svgDoc.Children)
{
if (element is SvgRectangle)
{
SvgRectangle svgRectangle = element as SvgRectangle;
svgRectangle.Width = maxX;
svgRectangle.Height = maxY;
}
if (element is SvgGroup)
{
foreach (SvgElement element2 in element.Children)
{
SvgUse svgUse = element2 as SvgUse;
if (svgUse != null)
{
svgUse.X = new SvgUnit(svgUnitType, svgUse.X.Value - minX.Value);
svgUse.Y = new SvgUnit(svgUnitType, svgUse.Y.Value - minY.Value);
}
}
}
}
#endregion
for (int i = 0; i < svgDoc.Children.Count; i++)
{
if (svgDoc.Children[i] is SvgRectangle)
{
SvgRectangle svgRectangle = svgDoc.Children[i] as SvgRectangle;
svgRectangle.Width = new SvgUnit(svgUnitType, maxX.Value - recWidth.Value - recWidth.Value);
svgRectangle.Height = new SvgUnit(svgUnitType, maxY.Value - recWidth.Value - recWidth.Value);
}
if (svgDoc.Children[i] is SvgGroup)
{
SvgElement element = svgDoc.Children[i] as SvgElement;
string attribute = string.Empty;
element.TryGetAttribute("fill", out attribute);
for (int j = element.Children.Count; j > 0; j--)
{
SvgUse svgUse = element.Children[j - 1] as SvgUse;
if (((int)svgUse.Y.Value) + ((int)recWidth.Value) == ((int)maxY.Value) ||// 最后一行
((int)svgUse.Y.Value) == 0 || // 第一行
((int)svgUse.X.Value) + ((int)recWidth.Value) == ((int)maxX.Value) || // 最后一列
((int)svgUse.X.Value) == 0) // 第一列
{
// 最后一行
element.Children.RemoveAt(j - 1);
}
else
{
if (svgUse != null)
{
svgUse.X = new SvgUnit(svgUnitType, svgUse.X.Value - recWidth.Value);
svgUse.Y = new SvgUnit(svgUnitType, svgUse.Y.Value - recWidth.Value);
}
}
}
}
}
svgDoc.Width = new SvgUnit(svgUnitType, maxX.Value - recWidth.Value - recWidth.Value);
svgDoc.Height = new SvgUnit(svgUnitType, maxY.Value - recWidth.Value - recWidth.Value);
svgDoc.ViewBox = new SvgViewBox(0, 0, svgDoc.Width.Value, svgDoc.Height.Value);
var svgXml = svgDoc.GetXML();
File.WriteAllText(svgFileFullName, svgXml);
File.Delete(svgTempFileFullName);
}
MessageBox.Show(@"导出完成");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
}
public SvgCoordinateContext MapPoint(Point point, SvgUnitType unitType)
{
return(MapPoint(point, 0, unitType));
}
protected void Clip(GdiGraphics gr)
{
if (_svgElement == null)
{
return;
}
SvgRenderingHint hint = _svgElement.RenderingHint;
// todo: should we correct the clipping to adjust to the off-one-pixel drawing?
gr.TranslateClip(1, 1);
#region Clip with clip
// see http://www.w3.org/TR/SVG/masking.html#OverflowAndClipProperties
if (_svgElement is ISvgSvgElement || _svgElement is ISvgMarkerElement ||
_svgElement is ISvgSymbolElement || _svgElement is ISvgPatternElement)
{
// check overflow property
CssValue overflow = ((SvgElement)_svgElement).GetComputedCssValue("overflow", string.Empty) as CssValue;
// TODO: clip can have "rect(10 10 auto 10)"
CssPrimitiveValue clip = ((SvgElement)_svgElement).GetComputedCssValue("clip", string.Empty) as CssPrimitiveValue;
string sOverflow = null;
if (overflow != null || overflow.CssText == "")
{
sOverflow = overflow.CssText;
}
else
{
if (this is ISvgSvgElement)
{
sOverflow = "hidden";
}
}
if (sOverflow != null)
{
// "If the 'overflow' property has a value other than hidden or scroll, the property has no effect (i.e., a clipping rectangle is not created)."
if (sOverflow == "hidden" || sOverflow == "scroll")
{
RectangleF clipRect = RectangleF.Empty;
if (clip != null && clip.PrimitiveType == CssPrimitiveType.Rect)
{
if (_svgElement is ISvgSvgElement)
{
ISvgSvgElement svgElement = (ISvgSvgElement)_svgElement;
SvgRect viewPort = svgElement.Viewport as SvgRect;
clipRect = GdiConverter.ToRectangle(viewPort);
ICssRect clipShape = (CssRect)clip.GetRectValue();
if (clipShape.Top.PrimitiveType != CssPrimitiveType.Ident)
{
clipRect.Y += (float)clipShape.Top.GetFloatValue(CssPrimitiveType.Number);
}
if (clipShape.Left.PrimitiveType != CssPrimitiveType.Ident)
{
clipRect.X += (float)clipShape.Left.GetFloatValue(CssPrimitiveType.Number);
}
if (clipShape.Right.PrimitiveType != CssPrimitiveType.Ident)
{
clipRect.Width = (clipRect.Right - clipRect.X) - (float)clipShape.Right.GetFloatValue(CssPrimitiveType.Number);
}
if (clipShape.Bottom.PrimitiveType != CssPrimitiveType.Ident)
{
clipRect.Height = (clipRect.Bottom - clipRect.Y) - (float)clipShape.Bottom.GetFloatValue(CssPrimitiveType.Number);
}
}
}
else if (clip == null || (clip.PrimitiveType == CssPrimitiveType.Ident && clip.GetStringValue() == "auto"))
{
if (_svgElement is ISvgSvgElement)
{
ISvgSvgElement svgElement = (ISvgSvgElement)_svgElement;
SvgRect viewPort = svgElement.Viewport as SvgRect;
clipRect = GdiConverter.ToRectangle(viewPort);
}
else if (_svgElement is ISvgMarkerElement ||
_svgElement is ISvgSymbolElement ||
_svgElement is ISvgPatternElement)
{
// TODO: what to do here?
}
}
if (clipRect != RectangleF.Empty)
{
gr.SetClip(clipRect);
}
}
}
}
#endregion
#region Clip with clip-path
// see: http://www.w3.org/TR/SVG/masking.html#EstablishingANewClippingPath
if (hint == SvgRenderingHint.Shape || hint == SvgRenderingHint.Text ||
hint == SvgRenderingHint.Clipping || hint == SvgRenderingHint.Masking ||
hint == SvgRenderingHint.Containment)
{
CssPrimitiveValue clipPath = ((SvgElement)_svgElement).GetComputedCssValue("clip-path", string.Empty) as CssPrimitiveValue;
if (clipPath != null && clipPath.PrimitiveType == CssPrimitiveType.Uri)
{
string absoluteUri = ((SvgElement)_svgElement).ResolveUri(clipPath.GetStringValue());
SvgClipPathElement eClipPath = _svgElement.OwnerDocument.GetNodeByUri(absoluteUri) as SvgClipPathElement;
if (eClipPath != null)
{
GraphicsPath gpClip = CreateClippingRegion(eClipPath);
RectangleF clipBounds = gpClip != null?gpClip.GetBounds() : RectangleF.Empty;
if (clipBounds.Width.Equals(0) || clipBounds.Height.Equals(0))
{
return;
}
SvgUnitType pathUnits = (SvgUnitType)eClipPath.ClipPathUnits.AnimVal;
if (pathUnits == SvgUnitType.ObjectBoundingBox)
{
SvgTransformableElement transElement = _svgElement as SvgTransformableElement;
if (transElement != null)
{
ISvgRect bbox = transElement.GetBBox();
// scale clipping path
Matrix matrix = new Matrix();
matrix.Scale((float)bbox.Width, (float)bbox.Height);
gpClip.Transform(matrix);
gr.SetClip(gpClip);
// offset clip
gr.TranslateClip((float)bbox.X, (float)bbox.Y);
}
else
{
throw new NotImplementedException("clip-path with SvgUnitType.ObjectBoundingBox "
+ "not supported for this type of element: " + _svgElement.GetType());
}
}
else
{
gr.SetClip(gpClip);
}
gpClip.Dispose();
gpClip = null;
}
}
}
#endregion
}
private Brush GetRadialGradientBrush(SvgRadialGradientElement res)
{
double centerX = res.Cx.AnimVal.Value;
double centerY = res.Cy.AnimVal.Value;
double focusX = res.Fx.AnimVal.Value;
double focusY = res.Fy.AnimVal.Value;
double radius = res.R.AnimVal.Value;
GradientStopCollection gradientStops = GetGradientStops(res.Stops);
if (gradientStops == null || gradientStops.Count == 0)
{
return(null);
}
RadialGradientBrush brush = new RadialGradientBrush(gradientStops);
brush.RadiusX = radius;
brush.RadiusY = radius;
brush.Center = new Point(centerX, centerY);
brush.GradientOrigin = new Point(focusX, focusY);
if (res.SpreadMethod != null)
{
SvgSpreadMethod spreadMethod = (SvgSpreadMethod)res.SpreadMethod.AnimVal;
if (spreadMethod != SvgSpreadMethod.None)
{
brush.SpreadMethod = WpfConvert.ToSpreadMethod(spreadMethod);
}
}
if (res.GradientUnits != null)
{
SvgUnitType mappingMode = (SvgUnitType)res.GradientUnits.AnimVal;
if (mappingMode == SvgUnitType.ObjectBoundingBox)
{
brush.MappingMode = BrushMappingMode.RelativeToBoundingBox;
}
else if (mappingMode == SvgUnitType.UserSpaceOnUse)
{
brush.MappingMode = BrushMappingMode.Absolute;
if (res.Fx.AnimVal.UnitType == SvgLengthType.Percentage)
{
brush.GradientOrigin = brush.Center;
}
_isUserSpace = true;
}
}
MatrixTransform transform = GetTransformMatrix(res);
if (transform != null && !transform.Matrix.IsIdentity)
{
brush.Transform = transform;
}
string colorInterpolation = res.GetPropertyValue("color-interpolation");
if (!string.IsNullOrWhiteSpace(colorInterpolation))
{
if (colorInterpolation == "linearRGB")
{
brush.ColorInterpolationMode = ColorInterpolationMode.SRgbLinearInterpolation;
}
else
{
brush.ColorInterpolationMode = ColorInterpolationMode.ScRgbLinearInterpolation;
}
}
return(brush);
}
protected void SetClip(WpfDrawingContext context)
{
_clipPathUnits = SvgUnitType.UserSpaceOnUse;
if (_svgElement == null)
{
return;
}
#region Clip with clip
// see http://www.w3.org/TR/SVG/masking.html#OverflowAndClipProperties
if (_svgElement is ISvgSvgElement || _svgElement is ISvgMarkerElement ||
_svgElement is ISvgSymbolElement || _svgElement is ISvgPatternElement)
{
// check overflow property
CssValue overflow = _svgElement.GetComputedCssValue("overflow", String.Empty) as CssValue;
// TODO: clip can have "rect(10 10 auto 10)"
CssPrimitiveValue clip = _svgElement.GetComputedCssValue("clip", String.Empty) as CssPrimitiveValue;
string sOverflow = null;
if (overflow != null || overflow.CssText == "")
{
sOverflow = overflow.CssText;
}
else
{
if (this is ISvgSvgElement)
sOverflow = "hidden";
}
if (sOverflow != null)
{
// "If the 'overflow' property has a value other than hidden or scroll, the property has no effect (i.e., a clipping rectangle is not created)."
if (sOverflow == "hidden" || sOverflow == "scroll")
{
Rect clipRect = Rect.Empty;
if (clip != null && clip.PrimitiveType == CssPrimitiveType.Rect)
{
if (_svgElement is ISvgSvgElement)
{
ISvgSvgElement svgElement = (ISvgSvgElement)_svgElement;
SvgRect viewPort = svgElement.Viewport as SvgRect;
clipRect = WpfConvert.ToRect(viewPort);
ICssRect clipShape = (CssRect)clip.GetRectValue();
if (clipShape.Top.PrimitiveType != CssPrimitiveType.Ident)
clipRect.Y += clipShape.Top.GetFloatValue(CssPrimitiveType.Number);
if (clipShape.Left.PrimitiveType != CssPrimitiveType.Ident)
clipRect.X += clipShape.Left.GetFloatValue(CssPrimitiveType.Number);
if (clipShape.Right.PrimitiveType != CssPrimitiveType.Ident)
clipRect.Width = (clipRect.Right - clipRect.X) - clipShape.Right.GetFloatValue(CssPrimitiveType.Number);
if (clipShape.Bottom.PrimitiveType != CssPrimitiveType.Ident)
clipRect.Height = (clipRect.Bottom - clipRect.Y) - clipShape.Bottom.GetFloatValue(CssPrimitiveType.Number);
}
}
else if (clip == null || (clip.PrimitiveType == CssPrimitiveType.Ident && clip.GetStringValue() == "auto"))
{
if (_svgElement is ISvgSvgElement)
{
ISvgSvgElement svgElement = (ISvgSvgElement)_svgElement;
SvgRect viewPort = svgElement.Viewport as SvgRect;
clipRect = WpfConvert.ToRect(viewPort);
}
else if (_svgElement is ISvgMarkerElement ||
_svgElement is ISvgSymbolElement ||
_svgElement is ISvgPatternElement)
{
// TODO: what to do here?
}
}
if (clipRect != Rect.Empty)
{
_clipGeometry = new RectangleGeometry(clipRect);
//gr.SetClip(clipRect);
}
}
}
}
#endregion
#region Clip with clip-path
SvgRenderingHint hint = _svgElement.RenderingHint;
if (hint == SvgRenderingHint.Image)
{
}
// see: http://www.w3.org/TR/SVG/masking.html#EstablishingANewClippingPath
if (hint == SvgRenderingHint.Shape || hint == SvgRenderingHint.Text ||
hint == SvgRenderingHint.Clipping || hint == SvgRenderingHint.Masking ||
hint == SvgRenderingHint.Containment || hint == SvgRenderingHint.Image)
{
CssPrimitiveValue clipPath = _svgElement.GetComputedCssValue("clip-path", String.Empty) as CssPrimitiveValue;
if (clipPath != null && clipPath.PrimitiveType == CssPrimitiveType.Uri)
{
string absoluteUri = _svgElement.ResolveUri(clipPath.GetStringValue());
SvgClipPathElement eClipPath = _svgElement.OwnerDocument.GetNodeByUri(absoluteUri) as SvgClipPathElement;
if (eClipPath != null)
{
GeometryCollection geomColl = CreateClippingRegion(eClipPath, context);
if (geomColl == null || geomColl.Count == 0)
{
return;
}
Geometry gpClip = geomColl[0];
int geomCount = geomColl.Count;
if (geomCount > 1)
{
//GeometryGroup clipGroup = new GeometryGroup();
//clipGroup.Children.Add(gpClip);
for (int k = 1; k < geomCount; k++)
{
gpClip = CombinedGeometry.Combine(gpClip, geomColl[k],
GeometryCombineMode.Union, null);
//clipGroup.Children.Add(geomColl[k]);
}
//clipGroup.Children.Reverse();
//gpClip = clipGroup;
}
if (gpClip == null || gpClip.IsEmpty())
{
return;
}
_clipPathUnits = (SvgUnitType)eClipPath.ClipPathUnits.AnimVal;
//if (_clipPathUnits == SvgUnitType.ObjectBoundingBox)
//{
// SvgTransformableElement transElement = _svgElement as SvgTransformableElement;
// if (transElement != null)
// {
// ISvgRect bbox = transElement.GetBBox();
// // scale clipping path
// gpClip.Transform = new ScaleTransform(bbox.Width, bbox.Height);
// //gr.SetClip(gpClip);
// // offset clip
// //TODO--PAUL gr.TranslateClip((float)bbox.X, (float)bbox.Y);
// _clipGeometry = gpClip;
// }
// else
// {
// throw new NotImplementedException("clip-path with SvgUnitType.ObjectBoundingBox "
// + "not supported for this type of element: " + _svgElement.GetType());
// }
//}
//else
{
//gr.SetClip(gpClip);
_clipGeometry = gpClip;
}
}
}
}
#endregion
}
public override void Render(WpfDrawingRenderer renderer)
{
WpfDrawingContext context = renderer.Context;
SvgRenderingHint hint = _svgElement.RenderingHint;
if (hint != SvgRenderingHint.Shape || 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;
}
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);
if (geometry != null && !geometry.IsEmpty())
{
SetClip(context);
WpfSvgPaint fillPaint = new WpfSvgPaint(context, styleElm, "fill");
string fileValue = styleElm.GetAttribute("fill");
Brush brush = fillPaint.GetBrush(geometry);
WpfSvgPaint strokePaint = new WpfSvgPaint(context, styleElm, "stroke");
Pen pen = strokePaint.GetPen();
if (brush != null || pen != null)
{
Transform transform = this.Transform;
if (transform != null && !transform.Value.IsIdentity)
{
geometry.Transform = transform;
if (brush != null)
{
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;
}
}
}
else
{
transform = null; // render any identity transform useless...
}
GeometryDrawing drawing = new GeometryDrawing(brush, pen, geometry);
string elementId = this.GetElementName();
if (!String.IsNullOrEmpty(elementId) && !context.IsRegisteredId(elementId))
{
drawing.SetValue(FrameworkElement.NameProperty, elementId);
context.RegisterId(elementId);
if (context.IncludeRuntime)
{
SvgObject.SetId(drawing, elementId);
}
}
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)
{
SvgUnitType maskUnits = this.MaskUnits;
if (maskUnits == 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));
DrawingGroup maskGroup = ((DrawingBrush)maskBrush).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 (transformGroup != null)
//{
// drawingBounds = transformGroup.TransformBounds(drawingBounds);
//}
//maskBrush.Viewbox = drawingBounds;
//maskBrush.ViewboxUnits = BrushMappingMode.Absolute;
//maskBrush.Stretch = Stretch.Uniform;
//maskBrush.Viewport = drawingBounds;
//maskBrush.ViewportUnits = BrushMappingMode.Absolute;
maskBrush.Transform = transformGroup;
}
else
{
if (transform != null)
{
maskBrush.Transform = transform;
}
}
clipMaskGroup.OpacityMask = maskBrush;
}
clipMaskGroup.Children.Add(drawing);
drawGroup.Children.Add(clipMaskGroup);
}
else
{
drawGroup.Children.Add(drawing);
}
}
}
RenderMarkers(renderer, styleElm, context);
}
protected void SetMask(WpfDrawingContext context)
{
_maskUnits = SvgUnitType.UserSpaceOnUse;
_maskContentUnits = SvgUnitType.UserSpaceOnUse;
CssPrimitiveValue maskPath = _svgElement.GetComputedCssValue(
"mask", String.Empty) as CssPrimitiveValue;
if (maskPath != null && maskPath.PrimitiveType == CssPrimitiveType.Uri)
{
string absoluteUri = _svgElement.ResolveUri(maskPath.GetStringValue());
SvgMaskElement maskElement =
_svgElement.OwnerDocument.GetNodeByUri(absoluteUri) as SvgMaskElement;
if (maskElement != null)
{
WpfDrawingRenderer renderer = new WpfDrawingRenderer();
renderer.Window = _svgElement.OwnerDocument.Window as SvgWindow;
WpfDrawingSettings settings = context.Settings.Clone();
settings.TextAsGeometry = true;
WpfDrawingContext maskContext = new WpfDrawingContext(true,
settings);
//maskContext.Initialize(null, context.FontFamilyVisitor, null);
maskContext.Initialize(context.LinkVisitor,
context.FontFamilyVisitor, context.ImageVisitor);
renderer.RenderMask(maskElement, maskContext);
Drawing image = renderer.Drawing;
Rect bounds = new Rect(0, 0, 1, 1);
//Rect destRect = GetMaskDestRect(maskElement, bounds);
//destRect = bounds;
//DrawingImage drawImage = new DrawingImage(image);
//DrawingVisual drawingVisual = new DrawingVisual();
//DrawingContext drawingContext = drawingVisual.RenderOpen();
//drawingContext.DrawDrawing(image);
//drawingContext.Close();
//RenderTargetBitmap drawImage = new RenderTargetBitmap((int)200,
// (int)200, 96, 96, PixelFormats.Pbgra32);
//drawImage.Render(drawingVisual);
//ImageBrush imageBrush = new ImageBrush(drawImage);
//imageBrush.Viewbox = image.Bounds;
//imageBrush.Viewport = image.Bounds;
//imageBrush.ViewboxUnits = BrushMappingMode.Absolute;
//imageBrush.ViewportUnits = BrushMappingMode.Absolute;
//imageBrush.TileMode = TileMode.None;
//imageBrush.Stretch = Stretch.None;
//this.Masking = imageBrush;
DrawingBrush maskBrush = new DrawingBrush(image);
//tb.Viewbox = new Rect(0, 0, destRect.Width, destRect.Height);
//tb.Viewport = new Rect(0, 0, destRect.Width, destRect.Height);
maskBrush.Viewbox = image.Bounds;
maskBrush.Viewport = image.Bounds;
maskBrush.ViewboxUnits = BrushMappingMode.Absolute;
maskBrush.ViewportUnits = BrushMappingMode.Absolute;
maskBrush.TileMode = TileMode.None;
maskBrush.Stretch = Stretch.Uniform;
////maskBrush.AlignmentX = AlignmentX.Center;
////maskBrush.AlignmentY = AlignmentY.Center;
this.Masking = maskBrush;
_maskUnits = (SvgUnitType)maskElement.MaskUnits.AnimVal;
_maskContentUnits = (SvgUnitType)maskElement.MaskContentUnits.AnimVal;
}
}
}
protected void SetMask(WpfDrawingContext context)
{
_maskUnits = SvgUnitType.UserSpaceOnUse;
_maskContentUnits = SvgUnitType.UserSpaceOnUse;
CssPrimitiveValue maskPath = _svgElement.GetComputedCssValue("mask", string.Empty) as CssPrimitiveValue;
SvgMaskElement maskElement = null;
if (maskPath != null && maskPath.PrimitiveType == CssPrimitiveType.Uri)
{
string absoluteUri = _svgElement.ResolveUri(maskPath.GetStringValue());
maskElement = _svgElement.OwnerDocument.GetNodeByUri(absoluteUri) as SvgMaskElement;
}
else if (string.Equals(_svgElement.ParentNode.LocalName, "use"))
{
var parentElement = _svgElement.ParentNode as SvgElement;
maskPath = parentElement.GetComputedCssValue("mask", string.Empty) as CssPrimitiveValue;
if (maskPath != null && maskPath.PrimitiveType == CssPrimitiveType.Uri)
{
string absoluteUri = _svgElement.ResolveUri(maskPath.GetStringValue());
maskElement = _svgElement.OwnerDocument.GetNodeByUri(absoluteUri) as SvgMaskElement;
}
}
if (maskElement != null)
{
WpfDrawingRenderer renderer = new WpfDrawingRenderer();
renderer.Window = _svgElement.OwnerDocument.Window as SvgWindow;
WpfDrawingSettings settings = context.Settings.Clone();
settings.TextAsGeometry = true;
WpfDrawingContext maskContext = new WpfDrawingContext(true, settings);
//maskContext.Initialize(null, context.FontFamilyVisitor, null);
maskContext.Initialize(context.LinkVisitor, context.FontFamilyVisitor, context.ImageVisitor);
renderer.RenderMask(maskElement, maskContext);
DrawingGroup maskDrawing = renderer.Drawing;
Rect bounds = new Rect(0, 0, 1, 1);
//Rect destRect = GetMaskDestRect(maskElement, bounds);
//destRect = bounds;
//DrawingImage drawImage = new DrawingImage(image);
//DrawingVisual drawingVisual = new DrawingVisual();
//DrawingContext drawingContext = drawingVisual.RenderOpen();
//drawingContext.DrawDrawing(image);
//drawingContext.Close();
//RenderTargetBitmap drawImage = new RenderTargetBitmap((int)200,
// (int)200, 96, 96, PixelFormats.Pbgra32);
//drawImage.Render(drawingVisual);
//ImageBrush imageBrush = new ImageBrush(drawImage);
//imageBrush.Viewbox = image.Bounds;
//imageBrush.Viewport = image.Bounds;
//imageBrush.ViewboxUnits = BrushMappingMode.Absolute;
//imageBrush.ViewportUnits = BrushMappingMode.Absolute;
//imageBrush.TileMode = TileMode.None;
//imageBrush.Stretch = Stretch.None;
//this.Masking = imageBrush;
DrawingBrush maskBrush = new DrawingBrush(maskDrawing);
//tb.Viewbox = new Rect(0, 0, destRect.Width, destRect.Height);
//tb.Viewport = new Rect(0, 0, destRect.Width, destRect.Height);
maskBrush.Viewbox = maskDrawing.Bounds;
maskBrush.Viewport = maskDrawing.Bounds;
maskBrush.ViewboxUnits = BrushMappingMode.Absolute;
maskBrush.ViewportUnits = BrushMappingMode.Absolute;
maskBrush.TileMode = TileMode.None;
maskBrush.Stretch = Stretch.Uniform;
////maskBrush.AlignmentX = AlignmentX.Center;
////maskBrush.AlignmentY = AlignmentY.Center;
this.Masking = maskBrush;
_maskUnits = (SvgUnitType)maskElement.MaskUnits.AnimVal;
_maskContentUnits = (SvgUnitType)maskElement.MaskContentUnits.AnimVal;
}
}
public static LinearGradientBrush ConstructBrush(SvgLinearGradientElement gradient, Rect bounds, Matrix transform)
{
if (gradient.Stops.Count == 0)
{
return(null);
}
double x1 = gradient.X1.AnimVal.Value;
double x2 = gradient.X2.AnimVal.Value;
double y1 = gradient.Y1.AnimVal.Value;
double y2 = gradient.Y2.AnimVal.Value;
GradientStopCollection gradientStops = ToGradientStops(gradient.Stops);
LinearGradientBrush brush = new LinearGradientBrush(gradientStops,
new Point(x1, y1), new Point(x2, y2));
SvgSpreadMethod spreadMethod = SvgSpreadMethod.Pad;
if (gradient.SpreadMethod != null)
{
spreadMethod = (SvgSpreadMethod)gradient.SpreadMethod.AnimVal;
if (TryGetSpreadMethod(spreadMethod, out GradientSpreadMethod sm))
{
brush.SpreadMethod = sm;
}
}
SvgUnitType mappingMode = SvgUnitType.ObjectBoundingBox;
if (gradient.GradientUnits != null)
{
mappingMode = (SvgUnitType)gradient.GradientUnits.AnimVal;
if (mappingMode == SvgUnitType.ObjectBoundingBox)
{
brush.MappingMode = BrushMappingMode.RelativeToBoundingBox;
}
else if (mappingMode == SvgUnitType.UserSpaceOnUse)
{
brush.MappingMode = BrushMappingMode.Absolute;
brush.StartPoint.Offset(bounds.X, bounds.Y);
brush.EndPoint.Offset(bounds.X, bounds.Y);
}
}
Matrix brushTransform = ToWpfMatrix(((SvgTransformList)gradient.GradientTransform.AnimVal).TotalMatrix);
if (mappingMode == SvgUnitType.UserSpaceOnUse)
{
brushTransform *= transform;
}
if (!brushTransform.IsIdentity)
{
brush.Transform = new MatrixTransform(brushTransform);
}
string colorInterpolation = gradient.GetPropertyValue("color-interpolation");
if (!string.IsNullOrWhiteSpace(colorInterpolation))
{
if (colorInterpolation == "linearRGB")
{
brush.ColorInterpolationMode = ColorInterpolationMode.ScRgbLinearInterpolation;
}
else
{
brush.ColorInterpolationMode = ColorInterpolationMode.SRgbLinearInterpolation;
}
}
return(brush);
}
private Brush GetRadialGradientBrush(SvgRadialGradientElement res)
{
var refElem = res.ReferencedElement;
double centerX = res.Cx.AnimVal.Value;
double centerY = res.Cy.AnimVal.Value;
// 'fx', 'fy', and 'fr' define the start circle for the radial gradient.
double focusX = res.Fx.AnimVal.Value;
double focusY = res.Fy.AnimVal.Value;
double radius = res.R.AnimVal.Value;
var lengthUnit = res.Cx.AnimVal.UnitType;
// If attribute 'fx' is not specified, 'fx' will coincide with the presentational
// value of 'cx' for the element whether the value for 'cx' was inherited or not.
if (lengthUnit == SvgLengthType.Percentage)
{
if (!res.HasAttribute("fx") && (refElem == null || !refElem.HasAttribute("fx")))
{
focusX = centerX;
}
else if (focusX.Equals(0.0))
{
focusX = centerX;
if (focusX > 0 && focusX >= radius)
{
focusX = (centerX > radius) ? centerX - radius : focusX = radius;
}
}
else
{
if (focusX > 0 && focusX >= radius)
{
focusX = (centerX > radius) ? centerX - radius : focusX = radius;
}
}
}
lengthUnit = res.Cy.AnimVal.UnitType;
// If attribute 'fy' is not specified, 'fy' will coincide with the presentational
// value of 'cy' for the element whether the value for 'cy' was inherited or not.
if (lengthUnit == SvgLengthType.Percentage)
{
if (!res.HasAttribute("fy") && (refElem == null || !refElem.HasAttribute("fy")))
{
focusY = centerY;
}
else if (focusY.Equals(0.0))
{
focusY = centerY;
if (focusY > 0 && focusY >= radius)
{
focusY = (centerY > radius) ? centerY - radius : focusY = radius;
}
}
else
{
if (focusY > 0 && focusY >= radius)
{
focusY = (centerY > radius) ? centerY - radius : focusY = radius;
}
}
}
GradientStopCollection gradientStops = GetGradientStops(res.Stops);
if (gradientStops == null || gradientStops.Count == 0)
{
return(null);
}
RadialGradientBrush brush = new RadialGradientBrush(gradientStops);
brush.RadiusX = radius;
brush.RadiusY = radius;
brush.Center = new Point(centerX, centerY);
brush.GradientOrigin = new Point(focusX, focusY);
if (res.SpreadMethod != null)
{
SvgSpreadMethod spreadMethod = (SvgSpreadMethod)res.SpreadMethod.AnimVal;
if (spreadMethod != SvgSpreadMethod.None)
{
brush.SpreadMethod = WpfConvert.ToSpreadMethod(spreadMethod);
}
}
if (res.GradientUnits != null)
{
SvgUnitType mappingMode = (SvgUnitType)res.GradientUnits.AnimVal;
if (mappingMode == SvgUnitType.ObjectBoundingBox)
{
brush.MappingMode = BrushMappingMode.RelativeToBoundingBox;
}
else if (mappingMode == SvgUnitType.UserSpaceOnUse)
{
brush.MappingMode = BrushMappingMode.Absolute;
if (res.Fx.AnimVal.UnitType == SvgLengthType.Percentage)
{
brush.GradientOrigin = brush.Center;
}
_isUserSpace = true;
}
}
MatrixTransform transform = GetTransformMatrix(res);
if (transform != null && !transform.Matrix.IsIdentity)
{
brush.Transform = transform;
}
string colorInterpolation = res.GetPropertyValue("color-interpolation");
if (!string.IsNullOrWhiteSpace(colorInterpolation))
{
if (string.Equals(colorInterpolation, "linearRGB", StringComparison.OrdinalIgnoreCase))
{
brush.ColorInterpolationMode = ColorInterpolationMode.SRgbLinearInterpolation;
}
else
{
brush.ColorInterpolationMode = ColorInterpolationMode.ScRgbLinearInterpolation;
}
}
return(brush);
}
public static RadialGradientBrush ConstructBrush(SvgRadialGradientElement gradient, Rect bounds, Matrix transform)
{
if (gradient.Stops.Count == 0)
{
return(null);
}
double centerX = gradient.Cx.AnimVal.Value;
double centerY = gradient.Cy.AnimVal.Value;
double focusX = gradient.Fx.AnimVal.Value;
double focusY = gradient.Fy.AnimVal.Value;
double radius = gradient.R.AnimVal.Value;
GradientStopCollection gradientStops = ToGradientStops(gradient.Stops);
RadialGradientBrush brush = new RadialGradientBrush(gradientStops);
brush.RadiusX = radius;
brush.RadiusY = radius;
brush.Center = new Point(centerX, centerY);
brush.GradientOrigin = new Point(focusX, focusY);
if (gradient.SpreadMethod != null)
{
SvgSpreadMethod spreadMethod = (SvgSpreadMethod)gradient.SpreadMethod.AnimVal;
if (TryGetSpreadMethod(spreadMethod, out GradientSpreadMethod sm))
{
brush.SpreadMethod = sm;
}
}
SvgUnitType mappingMode = SvgUnitType.ObjectBoundingBox;
if (gradient.GradientUnits != null)
{
mappingMode = (SvgUnitType)gradient.GradientUnits.AnimVal;
if (mappingMode == SvgUnitType.ObjectBoundingBox)
{
brush.MappingMode = BrushMappingMode.RelativeToBoundingBox;
}
else if (mappingMode == SvgUnitType.UserSpaceOnUse)
{
brush.MappingMode = BrushMappingMode.Absolute;
brush.Center.Offset(bounds.X, bounds.Y);
brush.GradientOrigin.Offset(bounds.X, bounds.Y);
}
}
Matrix brushTransform = ToWpfMatrix(((SvgTransformList)gradient.GradientTransform.AnimVal).TotalMatrix);
if (mappingMode == SvgUnitType.UserSpaceOnUse)
{
brushTransform *= transform;
}
if (!brushTransform.IsIdentity)
{
brush.Transform = new MatrixTransform(brushTransform);
}
string colorInterpolation = gradient.GetPropertyValue("color-interpolation");
if (!string.IsNullOrWhiteSpace(colorInterpolation))
{
if (colorInterpolation == "linearRGB")
{
brush.ColorInterpolationMode = ColorInterpolationMode.SRgbLinearInterpolation;
}
else
{
brush.ColorInterpolationMode = ColorInterpolationMode.ScRgbLinearInterpolation;
}
}
return(brush);
}
/// <summary>
/// Initializes a new instance of the <see cref="SvgUnit"/> struct.
/// </summary>
/// <param name="type">The type.</param>
/// <param name="value">The value.</param>
public SvgUnit(SvgUnitType type, float value)
{
this._type = type;
this._value = value;
this._isEmpty = (this._value == 0.0f);
this._deviceValue = null;
}
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))
{
SvgObject.SetName(drawGroup, elementId);
context.RegisterId(elementId);
if (context.IncludeRuntime)
{
SvgObject.SetId(drawGroup, elementId);
}
}
}
else if (!_idAssigned)
{
if (!_idAssigned && !string.IsNullOrWhiteSpace(elementId) && !context.IsRegisteredId(elementId))
{
SvgObject.SetName(imageSource, elementId);
context.RegisterId(elementId);
if (context.IncludeRuntime)
{
SvgObject.SetId(imageSource, elementId);
}
}
}
}
}
public SvgCoordinateContext MapPoint(Point point, SvgUnitType unitType)
{
return MapPoint(point, 0, unitType);
}
private LinearGradientBrush GetLinearGradientBrush(Rect elementBounds,
SvgLinearGradientElement res)
{
double x1 = res.X1.AnimVal.Value;
double x2 = res.X2.AnimVal.Value;
double y1 = res.Y1.AnimVal.Value;
double y2 = res.Y2.AnimVal.Value;
GradientStopCollection gradientStops = GetGradientStops(res.Stops);
//LinearGradientBrush brush = new LinearGradientBrush(gradientStops);
LinearGradientBrush brush = new LinearGradientBrush(gradientStops,
new Point(x1, y1), new Point(x2, y2));
SvgSpreadMethod spreadMethod = SvgSpreadMethod.Pad;
if (res.SpreadMethod != null)
{
spreadMethod = (SvgSpreadMethod)res.SpreadMethod.AnimVal;
if (spreadMethod != SvgSpreadMethod.None)
{
brush.SpreadMethod = WpfConvert.ToSpreadMethod(spreadMethod);
}
}
Transform viewBoxTransform = null;
SvgUnitType mappingMode = SvgUnitType.ObjectBoundingBox;
if (res.GradientUnits != null)
{
mappingMode = (SvgUnitType)res.GradientUnits.AnimVal;
if (mappingMode == SvgUnitType.ObjectBoundingBox)
{
brush.MappingMode = BrushMappingMode.RelativeToBoundingBox;
}
else if (mappingMode == SvgUnitType.UserSpaceOnUse)
{
brush.MappingMode = BrushMappingMode.Absolute;
viewBoxTransform = FitToViewbox(new SvgRect(x1, y1,
Math.Abs(x2 - x1), Math.Abs(y2 - y1)),
elementBounds);
}
}
MatrixTransform transform = GetTransformMatrix(res);
if (transform != null && !transform.Matrix.IsIdentity)
{
if (viewBoxTransform != null)
{
TransformGroup group = new TransformGroup();
group.Children.Add(viewBoxTransform);
group.Children.Add(transform);
brush.Transform = group;
}
else
{
brush.Transform = transform;
//brush.StartPoint = new Point(0, 0.5);
//brush.EndPoint = new Point(1, 0.5);
}
//brush.StartPoint = new Point(0, 0);
//brush.EndPoint = new Point(1, 1);
}
else
{
float fLeft = (float)res.X1.AnimVal.Value;
float fRight = (float)res.X2.AnimVal.Value;
float fTop = (float)res.Y1.AnimVal.Value;
float fBottom = (float)res.Y2.AnimVal.Value;
if (fTop == fBottom)
{
//mode = LinearGradientMode.Horizontal;
//brush.StartPoint = new Point(0, 0.5);
//brush.EndPoint = new Point(1, 0.5);
}
else
{
if (fLeft == fRight)
{
//mode = LinearGradientMode.Vertical;
//brush.StartPoint = new Point(0.5, 0);
//brush.EndPoint = new Point(0.5, 1);
}
else
{
if (fLeft < fRight)
{
if (viewBoxTransform != null)
{
TransformGroup group = new TransformGroup();
group.Children.Add(viewBoxTransform);
group.Children.Add(new RotateTransform(45, 0.5, 0.5));
brush.Transform = group;
}
else
{
brush.RelativeTransform = new RotateTransform(45, 0.5, 0.5);
}
//mode = LinearGradientMode.ForwardDiagonal;
//brush.EndPoint = new Point(x1, y1 + 1);
//brush.StartPoint = new Point(0, 0);
//brush.EndPoint = new Point(1, 1);
}
else
{
//mode = LinearGradientMode.BackwardDiagonal;
if (viewBoxTransform != null)
{
TransformGroup group = new TransformGroup();
group.Children.Add(viewBoxTransform);
group.Children.Add(new RotateTransform(-45, 0.5, 0.5));
brush.Transform = group;
}
else
{
brush.RelativeTransform = new RotateTransform(-45, 0.5, 0.5);
}
//brush.StartPoint = new Point(0, 0);
//brush.EndPoint = new Point(1, 1);
}
}
}
}
string colorInterpolation = res.GetPropertyValue("color-interpolation");
if (!String.IsNullOrEmpty(colorInterpolation))
{
if (colorInterpolation == "linearRGB")
{
brush.ColorInterpolationMode = ColorInterpolationMode.ScRgbLinearInterpolation;
}
else
{
brush.ColorInterpolationMode = ColorInterpolationMode.SRgbLinearInterpolation;
}
}
return(brush);
}
public override void Render(WpfDrawingRenderer renderer)
{
WpfDrawingContext context = renderer.Context;
SvgImageElement imageElement = (SvgImageElement)_svgElement;
double width = imageElement.Width.AnimVal.Value;
double height = imageElement.Height.AnimVal.Value;
Rect destRect = new Rect(imageElement.X.AnimVal.Value, imageElement.Y.AnimVal.Value,
width, height);
ImageSource imageSource = null;
if (imageElement.IsSvgImage)
{
SvgWindow wnd = GetSvgWindow();
//_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 drawImage = imageGroup.Children[0] as DrawingGroup;
if (drawImage != null)
{
if (drawImage.ClipGeometry != null)
{
drawImage.ClipGeometry = null;
}
imageSource = new DrawingImage(drawImage);
}
else
{
if (imageGroup.ClipGeometry != null)
{
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)
{
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));
//Transform scaleTransform = this.FitToViewbox(aspectRatio,
// new SvgRect(destRect.X, destRect.Y, 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)
{
}
}
}
ImageDrawing drawing = new ImageDrawing(imageSource, destRect);
float opacityValue = -1;
string opacity = imageElement.GetAttribute("opacity");
if (opacity != null && opacity.Length > 0)
{
opacityValue = (float)SvgNumber.ParseNumber(opacity);
opacityValue = Math.Min(opacityValue, 1);
opacityValue = Math.Max(opacityValue, 0);
}
Geometry clipGeom = this.ClipGeometry;
Transform transform = this.Transform;
if (drawGroup == null)
{
drawGroup = context.Peek();
}
Debug.Assert(drawGroup != null);
if (drawGroup != null)
{
if (opacityValue >= 0 || (clipGeom != null && !clipGeom.IsEmpty()) ||
(transform != null && !transform.Value.IsIdentity))
{
DrawingGroup clipGroup = new DrawingGroup();
if (opacityValue >= 0)
{
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)
{
clipGroup.Transform = transform;
}
clipGroup.Children.Add(drawing);
drawGroup.Children.Add(clipGroup);
}
else
{
drawGroup.Children.Add(drawing);
}
}
}
private LinearGradientBrush GetLinearGradientBrush(SvgLinearGradientElement res)
{
double x1 = res.X1.AnimVal.Value;
double x2 = res.X2.AnimVal.Value;
double y1 = res.Y1.AnimVal.Value;
double y2 = res.Y2.AnimVal.Value;
GradientStopCollection gradientStops = GetGradientStops(res.Stops);
LinearGradientBrush brush = new LinearGradientBrush(gradientStops,
new Point(x1, y1), new Point(x2, y2));
SvgSpreadMethod spreadMethod = SvgSpreadMethod.None;
if (res.SpreadMethod != null)
{
spreadMethod = (SvgSpreadMethod)res.SpreadMethod.AnimVal;
if (spreadMethod != SvgSpreadMethod.None)
{
brush.SpreadMethod = WpfConvert.ToSpreadMethod(spreadMethod);
}
}
if (res.GradientUnits != null)
{
SvgUnitType mappingMode = (SvgUnitType)res.GradientUnits.AnimVal;
if (mappingMode == SvgUnitType.ObjectBoundingBox)
{
brush.MappingMode = BrushMappingMode.RelativeToBoundingBox;
}
else if (mappingMode == SvgUnitType.UserSpaceOnUse)
{
brush.MappingMode = BrushMappingMode.Absolute;
}
}
MatrixTransform transform = GetTransformMatrix(res);
if (transform != null && !transform.Matrix.IsIdentity)
{
brush.Transform = transform;
}
//else
//{
// float fLeft = (float)res.X1.AnimVal.Value;
// float fRight = (float)res.X2.AnimVal.Value;
// float fTop = (float)res.Y1.AnimVal.Value;
// float fBottom = (float)res.Y2.AnimVal.Value;
// if (fTop == fBottom)
// {
// //mode = LinearGradientMode.Horizontal;
// }
// else
// {
// if (fLeft == fRight)
// {
// //mode = LinearGradientMode.Vertical;
// }
// else
// {
// if (fLeft < fRight)
// {
// //mode = LinearGradientMode.ForwardDiagonal;
// brush.Transform = new RotateTransform(45, 0, 0);
// //brush.EndPoint = new Point(x1, y1 + 1);
// }
// else
// {
// //mode = LinearGradientMode.BackwardDiagonal;
// brush.Transform = new RotateTransform(-45);
// }
// }
// }
//}
string colorInterpolation = res.GetPropertyValue("color-interpolation");
if (!String.IsNullOrEmpty(colorInterpolation))
{
if (colorInterpolation == "linearRGB")
{
brush.ColorInterpolationMode = ColorInterpolationMode.ScRgbLinearInterpolation;
}
else
{
brush.ColorInterpolationMode = ColorInterpolationMode.SRgbLinearInterpolation;
}
}
return(brush);
}
