public override void Render(ISvgRenderer renderer)
{
GraphicsWrapper graphics = ((GdiRenderer)renderer).GraphicsWrapper;
SvgImageElement iElement = (SvgImageElement)element;
//HttpResource resource = iElement.ReferencedResource;
/*if (resource != null )
* {*/
ImageAttributes imageAttributes = new ImageAttributes();
string sOpacity = iElement.GetPropertyValue("opacity");
if (sOpacity.Length > 0)
{
double opacity = SvgNumber.ParseToFloat(sOpacity);
ColorMatrix myColorMatrix = new ColorMatrix();
myColorMatrix.Matrix00 = 1.00f; // Red
myColorMatrix.Matrix11 = 1.00f; // Green
myColorMatrix.Matrix22 = 1.00f; // Blue
myColorMatrix.Matrix33 = (float)opacity; // alpha
myColorMatrix.Matrix44 = 1.00f; // w
imageAttributes.SetColorMatrix(myColorMatrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap);
}
float width = (float)iElement.Width.AnimVal.Value;
float height = (float)iElement.Height.AnimVal.Value;
Rectangle destRect = new Rectangle();
destRect.X = Convert.ToInt32(iElement.X.AnimVal.Value);
destRect.Y = Convert.ToInt32(iElement.Y.AnimVal.Value);
destRect.Width = Convert.ToInt32(width);
destRect.Height = Convert.ToInt32(height);
Image image;
if (iElement.IsSvgImage)
{
SvgWindow wnd = getSvgWindow();
gdiRenderer.BackColor = Color.Empty;
gdiRenderer.Render(wnd.Document as SvgDocument);
//wnd.Render();
image = gdiRenderer.RasterImage;
image.Save(@"c:\inlinesvg.png", ImageFormat.Png);
}
else
{
image = iElement.Bitmap;
}
if (image != null)
{
graphics.DrawImage(this, image, destRect, 0f, 0f, image.Width, image.Height, GraphicsUnit.Pixel, imageAttributes);
}
//}
}
public override void BeforeRender(ISvgRenderer renderer)
{
if (_uniqueColor.IsEmpty)
{
_uniqueColor = ((GdiRenderer)renderer)._getNextColor(this);
}
GraphicsWrapper graphics = ((GdiRenderer)renderer).GraphicsWrapper;
graphicsContainer = graphics.BeginContainer();
SetQuality(graphics);
Transform(graphics);
}
public override void Render(ISvgRenderer renderer)
{
GraphicsWrapper graphics = ((GdiRenderer)renderer).GraphicsWrapper;
SvgSvgElement svgElm = (SvgSvgElement)element;
float x = (float)svgElm.X.AnimVal.Value;
float y = (float)svgElm.Y.AnimVal.Value;
float width = (float)svgElm.Width.AnimVal.Value;
float height = (float)svgElm.Height.AnimVal.Value;
RectangleF elmRect = new RectangleF(x, y, width, height);
fitToViewbox(graphics, elmRect);
}
protected void fitToViewbox(GraphicsWrapper graphics, RectangleF elmRect)
{
if (element is ISvgFitToViewBox)
{
ISvgFitToViewBox fitToVBElm = (ISvgFitToViewBox)element;
SvgPreserveAspectRatio spar = (SvgPreserveAspectRatio)fitToVBElm.PreserveAspectRatio.AnimVal;
float[] translateAndScale = spar.FitToViewBox(
(SvgRect)fitToVBElm.ViewBox.AnimVal,
new SvgRect(elmRect.X, elmRect.Y, elmRect.Width, elmRect.Height)
);
graphics.TranslateTransform(translateAndScale[0], translateAndScale[1]);
graphics.ScaleTransform(translateAndScale[2], translateAndScale[3]);
}
}
/// <summary>
/// AfterRender - Dispose of Graphics object created for rendering.
/// </summary>
private void RendererAfterRender()
{
if (graphics != null)
{
// Check if we only invalidated a rect
if (invalidRect != RectangleF.Empty &&
invalidatedRasterImage != null)
{
// We actually drew everything on invalidatedRasterImage and now we
// need to copy that to rasterImage
Graphics tempGraphics = Graphics.FromImage(rasterImage);
tempGraphics.DrawImage(invalidatedRasterImage, invalidRect.X, invalidRect.Y,
invalidRect, GraphicsUnit.Pixel);
tempGraphics.Dispose();
tempGraphics = null;
// If we currently have an idMapRaster here, then we need to create
// a temporary graphics object to draw the invalidated portion from
// our main graphics window onto it.
if (idMapRaster != null)
{
tempGraphics = Graphics.FromImage(idMapRaster);
tempGraphics.DrawImage(graphics.IdMapRaster, invalidRect.X, invalidRect.Y,
invalidRect, GraphicsUnit.Pixel);
tempGraphics.Dispose();
tempGraphics = null;
}
else
{
idMapRaster = graphics.IdMapRaster;
}
// We have updated the invalid region
invalidRect = RectangleF.Empty;
}
else
{
if (idMapRaster != null && idMapRaster != graphics.IdMapRaster)
{
idMapRaster.Dispose();
}
idMapRaster = graphics.IdMapRaster;
}
graphics.Dispose();
graphics = null;
}
}
public override void Render(ISvgRenderer renderer)
{
GraphicsWrapper graphics = ((GdiRenderer)renderer).GraphicsWrapper;
SvgSvgElement svgElm = (SvgSvgElement)element;
float x = (float)svgElm.X.AnimVal.Value;
float y = (float)svgElm.Y.AnimVal.Value;
float width = (float)svgElm.Width.AnimVal.Value;
float height = (float)svgElm.Height.AnimVal.Value;
RectangleF elmRect = new RectangleF(x, y, width, height);
if (element.ParentNode is SvgElement)
{
// TODO: should it be moved with x and y?
}
fitToViewbox(graphics, elmRect);
}
protected void Transform(GraphicsWrapper gr)
{
if (element is ISvgTransformable)
{
if (TransformMatrix == null)
{
ISvgTransformable transElm = (ISvgTransformable)element;
SvgTransformList svgTList = (SvgTransformList)transElm.Transform.AnimVal;
//SvgTransform svgTransform = (SvgTransform)svgTList.Consolidate();
SvgMatrix svgMatrix = ((SvgTransformList)transElm.Transform.AnimVal).TotalMatrix;
TransformMatrix = new Matrix(
(float)svgMatrix.A,
(float)svgMatrix.B,
(float)svgMatrix.C,
(float)svgMatrix.D,
(float)svgMatrix.E,
(float)svgMatrix.F);
}
gr.Transform = TransformMatrix;
}
}
protected void SetQuality(GraphicsWrapper gr)
{
Graphics graphics = gr.Graphics;
string colorRendering = ((SvgElement)element).GetComputedStringValue("color-rendering", String.Empty);
switch (colorRendering)
{
case "optimizeSpeed":
graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighSpeed;
break;
case "optimizeQuality":
graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
break;
default:
// "auto"
// todo: could use AssumeLinear for slightly better
graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.Default;
break;
}
if (element is SvgTextContentElement)
{
// Unfortunately the text rendering hints are not applied because the
// text path is recorded and painted to the Graphics object as a path
// not as text.
string textRendering = ((SvgElement)element).GetComputedStringValue("text-rendering", String.Empty);
switch (textRendering)
{
case "optimizeSpeed":
graphics.SmoothingMode = SmoothingMode.HighSpeed;
//graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixel;
break;
case "optimizeLegibility":
graphics.SmoothingMode = SmoothingMode.HighQuality;
//graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
break;
case "geometricPrecision":
graphics.SmoothingMode = SmoothingMode.AntiAlias;
//graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
break;
default:
// "auto"
graphics.SmoothingMode = SmoothingMode.AntiAlias;
//graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SystemDefault;
break;
}
}
else
{
string shapeRendering = ((SvgElement)element).GetComputedStringValue("shape-rendering", String.Empty);
switch (shapeRendering)
{
case "optimizeSpeed":
graphics.SmoothingMode = SmoothingMode.HighSpeed;
break;
case "crispEdges":
graphics.SmoothingMode = SmoothingMode.None;
break;
case "geometricPrecision":
graphics.SmoothingMode = SmoothingMode.HighQuality;
break;
default:
// "auto"
graphics.SmoothingMode = SmoothingMode.AntiAlias;
break;
}
}
}
protected void Clip(GraphicsWrapper gr)
{
// 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(element is ISvgSvgElement ||
element is ISvgMarkerElement ||
element is ISvgSymbolElement ||
element is ISvgPatternElement)
{
// check overflow property
CssValue overflow = ((SvgElement)element).GetComputedCssValue("overflow", String.Empty) as CssValue;
// TODO: clip can have "rect(10 10 auto 10)"
CssPrimitiveValue clip = ((SvgElement)element).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(element is ISvgSvgElement)
{
ISvgSvgElement svgElement = (ISvgSvgElement)element;
SvgRect viewPort = svgElement.Viewport as SvgRect;
clipRect = viewPort.ToRectangleF();
IRect clipShape = (Rect)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(element is ISvgSvgElement)
{
ISvgSvgElement svgElement = (ISvgSvgElement)element;
SvgRect viewPort = svgElement.Viewport as SvgRect;
clipRect = viewPort.ToRectangleF();
}
else if(element is ISvgMarkerElement ||
element is ISvgSymbolElement ||
element 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 ( element is IGraphicsElement ||
element is IContainerElement)
{
CssPrimitiveValue clipPath = ((SvgElement)element).GetComputedCssValue("clip-path", String.Empty) as CssPrimitiveValue;
if(clipPath != null && clipPath.PrimitiveType == CssPrimitiveType.Uri)
{
string absoluteUri = ((SvgElement)element).ResolveUri(clipPath.GetStringValue());
SvgClipPathElement eClipPath = ((SvgDocument)element.OwnerDocument).GetNodeByUri(absoluteUri) as SvgClipPathElement;
if ( eClipPath != null )
{
GraphicsPath gpClip = eClipPath.GetGraphicsPath();
SvgUnitType pathUnits = (SvgUnitType)eClipPath.ClipPathUnits.AnimVal;
if ( pathUnits == SvgUnitType.ObjectBoundingBox )
{
SvgTransformableElement transElement = element 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: " + element.GetType());
}
}
else
{
gr.SetClip(gpClip);
}
}
}
}
#endregion
}
protected void Transform(GraphicsWrapper gr)
{
if ( element is ISvgTransformable )
{
if ( TransformMatrix == null )
{
ISvgTransformable transElm = (ISvgTransformable) element;
SvgTransformList svgTList = (SvgTransformList)transElm.Transform.AnimVal;
//SvgTransform svgTransform = (SvgTransform)svgTList.Consolidate();
SvgMatrix svgMatrix = ((SvgTransformList)transElm.Transform.AnimVal).TotalMatrix;
TransformMatrix = new Matrix(
(float) svgMatrix.A,
(float) svgMatrix.B,
(float) svgMatrix.C,
(float) svgMatrix.D,
(float) svgMatrix.E,
(float) svgMatrix.F);
}
gr.Transform = TransformMatrix;
}
}
protected void SetQuality(GraphicsWrapper gr)
{
Graphics graphics = gr.Graphics;
string colorRendering = ((SvgElement)element).GetComputedStringValue("color-rendering", String.Empty);
switch(colorRendering)
{
case "optimizeSpeed":
graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighSpeed;
break;
case "optimizeQuality":
graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
break;
default:
// "auto"
// todo: could use AssumeLinear for slightly better
graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.Default;
break;
}
if (element is SvgTextContentElement)
{
// Unfortunately the text rendering hints are not applied because the
// text path is recorded and painted to the Graphics object as a path
// not as text.
string textRendering = ((SvgElement)element).GetComputedStringValue("text-rendering", String.Empty);
switch(textRendering)
{
case "optimizeSpeed":
graphics.SmoothingMode = SmoothingMode.HighSpeed;
//graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SingleBitPerPixel;
break;
case "optimizeLegibility":
graphics.SmoothingMode = SmoothingMode.HighQuality;
//graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.ClearTypeGridFit;
break;
case "geometricPrecision":
graphics.SmoothingMode = SmoothingMode.AntiAlias;
//graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
break;
default:
// "auto"
graphics.SmoothingMode = SmoothingMode.AntiAlias;
//graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.SystemDefault;
break;
}
}
else
{
string shapeRendering = ((SvgElement)element).GetComputedStringValue("shape-rendering", String.Empty);
switch(shapeRendering)
{
case "optimizeSpeed":
graphics.SmoothingMode = SmoothingMode.HighSpeed;
break;
case "crispEdges":
graphics.SmoothingMode = SmoothingMode.None;
break;
case "geometricPrecision":
graphics.SmoothingMode = SmoothingMode.HighQuality;
break;
default:
// "auto"
graphics.SmoothingMode = SmoothingMode.AntiAlias;
break;
}
}
}
public void PaintMarker(GdiRenderer renderer, GraphicsWrapper gr, SvgMarkerPosition markerPos, SvgStyleableElement refElement)
{
ISharpMarkerHost markerHostElm = (ISharpMarkerHost)refElement;
SvgMarkerElement markerElm = (SvgMarkerElement) element;
PointF[] vertexPositions = markerHostElm.MarkerPositions;
int start;
int len;
// Choose which part of the position array to use
switch (markerPos)
{
case SvgMarkerPosition.Start:
start = 0;
len = 1;
break;
case SvgMarkerPosition.Mid:
start = 1;
len = vertexPositions.Length - 2;
break;
default:
// == MarkerPosition.End
start = vertexPositions.Length-1;
len = 1;
break;
}
for ( int i = start; i<start+len; i++ )
{
PointF point = vertexPositions[i];
GraphicsContainerWrapper gc = gr.BeginContainer();
gr.TranslateTransform(point.X, point.Y);
if ( markerElm.OrientType.AnimVal.Equals(SvgMarkerOrient.Angle) )
{
gr.RotateTransform((float)markerElm.OrientAngle.AnimVal.Value);
}
else
{
float angle;
switch(markerPos)
{
case SvgMarkerPosition.Start:
angle = markerHostElm.GetStartAngle(i + 1);
break;
case SvgMarkerPosition.Mid:
//angle = (markerHostElm.GetEndAngle(i) + markerHostElm.GetStartAngle(i + 1)) / 2;
angle = SvgNumber.CalcAngleBisection(markerHostElm.GetEndAngle(i), markerHostElm.GetStartAngle(i + 1));
break;
default:
angle = markerHostElm.GetEndAngle(i);
break;
}
gr.RotateTransform(angle);
}
if ( markerElm.MarkerUnits.AnimVal.Equals(SvgMarkerUnit.StrokeWidth) )
{
SvgLength strokeWidthLength = new SvgLength(refElement, "stroke-width", SvgLengthSource.Css, SvgLengthDirection.Viewport, "1");
float strokeWidth = (float)strokeWidthLength.Value;
gr.ScaleTransform(strokeWidth, strokeWidth);
}
SvgPreserveAspectRatio spar = (SvgPreserveAspectRatio)markerElm.PreserveAspectRatio.AnimVal;
float[] translateAndScale = spar.FitToViewBox(
(SvgRect)markerElm.ViewBox.AnimVal,
new SvgRect(
0,
0,
(float)markerElm.MarkerWidth.AnimVal.Value,
(float)markerElm.MarkerHeight.AnimVal.Value)
);
gr.TranslateTransform(
-(float)markerElm.RefX.AnimVal.Value * translateAndScale[2],
-(float)markerElm.RefY.AnimVal.Value * translateAndScale[3]
);
gr.ScaleTransform(translateAndScale[2], translateAndScale[3]);
Clip(gr);
markerElm.RenderChildren(renderer);
gr.EndContainer(gc);
}
}
public void PaintMarker(GdiRenderer renderer, GraphicsWrapper gr, SvgMarkerPosition markerPos, SvgStyleableElement refElement)
{
ISharpMarkerHost markerHostElm = (ISharpMarkerHost)refElement;
SvgMarkerElement markerElm = (SvgMarkerElement)element;
PointF[] vertexPositions = markerHostElm.MarkerPositions;
int start;
int len;
// Choose which part of the position array to use
switch (markerPos)
{
case SvgMarkerPosition.Start:
start = 0;
len = 1;
break;
case SvgMarkerPosition.Mid:
start = 1;
len = vertexPositions.Length - 2;
break;
default:
// == MarkerPosition.End
start = vertexPositions.Length - 1;
len = 1;
break;
}
for (int i = start; i < start + len; i++)
{
PointF point = vertexPositions[i];
GraphicsContainerWrapper gc = gr.BeginContainer();
gr.TranslateTransform(point.X, point.Y);
if (markerElm.OrientType.AnimVal.Equals(SvgMarkerOrient.Angle))
{
gr.RotateTransform((float)markerElm.OrientAngle.AnimVal.Value);
}
else
{
float angle;
switch (markerPos)
{
case SvgMarkerPosition.Start:
angle = markerHostElm.GetStartAngle(i + 1);
break;
case SvgMarkerPosition.Mid:
//angle = (markerHostElm.GetEndAngle(i) + markerHostElm.GetStartAngle(i + 1)) / 2;
angle = SvgNumber.CalcAngleBisection(markerHostElm.GetEndAngle(i), markerHostElm.GetStartAngle(i + 1));
break;
default:
angle = markerHostElm.GetEndAngle(i);
break;
}
gr.RotateTransform(angle);
}
if (markerElm.MarkerUnits.AnimVal.Equals(SvgMarkerUnit.StrokeWidth))
{
SvgLength strokeWidthLength = new SvgLength(refElement, "stroke-width", SvgLengthSource.Css, SvgLengthDirection.Viewport, "1");
float strokeWidth = (float)strokeWidthLength.Value;
gr.ScaleTransform(strokeWidth, strokeWidth);
}
SvgPreserveAspectRatio spar = (SvgPreserveAspectRatio)markerElm.PreserveAspectRatio.AnimVal;
float[] translateAndScale = spar.FitToViewBox(
(SvgRect)markerElm.ViewBox.AnimVal,
new SvgRect(
0,
0,
(float)markerElm.MarkerWidth.AnimVal.Value,
(float)markerElm.MarkerHeight.AnimVal.Value)
);
gr.TranslateTransform(
-(float)markerElm.RefX.AnimVal.Value * translateAndScale[2],
-(float)markerElm.RefY.AnimVal.Value * translateAndScale[3]
);
gr.ScaleTransform(translateAndScale[2], translateAndScale[3]);
Clip(gr);
markerElm.RenderChildren(renderer);
gr.EndContainer(gc);
}
}
private void PaintMarkers(GdiRenderer renderer, SvgStyleableElement styleElm, GraphicsWrapper gr)
{
// OPTIMIZE
if ( styleElm is ISharpMarkerHost )
{
string markerStartUrl = extractMarkerUrl(styleElm.GetPropertyValue("marker-start", "marker"));
string markerMiddleUrl = extractMarkerUrl(styleElm.GetPropertyValue("marker-mid", "marker"));
string markerEndUrl = extractMarkerUrl(styleElm.GetPropertyValue("marker-end", "marker"));
RenderingNode grNode;
if ( markerStartUrl.Length > 0 )
{
grNode = renderer.GetGraphicsNodeByUri(styleElm.BaseURI, markerStartUrl);
if (grNode is SvgMarkerGraphicsNode)
{
((SvgMarkerGraphicsNode) grNode).PaintMarker(renderer, gr, SvgMarkerPosition.Start, styleElm);
}
}
if ( markerMiddleUrl.Length > 0 )
{
// TODO markerMiddleUrl != markerStartUrl
grNode = renderer.GetGraphicsNodeByUri(styleElm.BaseURI, markerMiddleUrl);
if ( grNode is SvgMarkerGraphicsNode )
{
((SvgMarkerGraphicsNode) grNode).PaintMarker(renderer, gr, SvgMarkerPosition.Mid, styleElm);
}
}
if ( markerEndUrl.Length > 0 )
{
// TODO: markerEndUrl != markerMiddleUrl
grNode = renderer.GetGraphicsNodeByUri(styleElm.BaseURI, markerEndUrl);
if(grNode is SvgMarkerGraphicsNode)
{
((SvgMarkerGraphicsNode) grNode).PaintMarker(renderer, gr, SvgMarkerPosition.End, styleElm);
}
}
}
}
/// <summary>
/// BeforeRender - Make sure we have a Graphics object to render to.
/// If we don't have one, then create one to matche the SvgWindow's
/// physical dimensions.
/// </summary>
internal void RendererBeforeRender()
{
// Testing for null here allows "advanced" developers to create their own Graphics object for rendering
if (graphics == null)
{
// Get the current SVGWindow's width and height
int innerWidth = (int)window.InnerWidth;
int innerHeight = (int)window.InnerHeight;
// Make sure we have an actual area to render to
if (innerWidth > 0 && innerHeight > 0)
{
// See if we already have a rasterImage that matches the current SVGWindow dimensions
if (rasterImage == null || rasterImage.Width != innerWidth || rasterImage.Height != innerHeight)
{
// Nope, so create one
if (rasterImage != null)
{
rasterImage.Dispose();
rasterImage = null;
}
rasterImage = new Bitmap(innerWidth, innerHeight);
}
// Maybe we are only repainting an invalidated section
if (invalidRect != RectangleF.Empty)
{
// TODO: Worry about pan...
if (invalidRect.X < 0)
{
invalidRect.X = 0;
}
if (invalidRect.Y < 0)
{
invalidRect.Y = 0;
}
if (invalidRect.Right > innerWidth)
{
invalidRect.Width = innerWidth - invalidRect.X;
}
if (invalidRect.Bottom > innerHeight)
{
invalidRect.Height = innerHeight - invalidRect.Y;
}
if (invalidatedRasterImage == null || invalidatedRasterImage.Width < invalidRect.Right ||
invalidatedRasterImage.Height < invalidRect.Bottom)
{
// Nope, so create one
if (invalidatedRasterImage != null)
{
invalidatedRasterImage.Dispose();
invalidatedRasterImage = null;
}
invalidatedRasterImage = new Bitmap((int)invalidRect.Right, (int)invalidRect.Bottom);
}
// Make a GraphicsWrapper object from the regionRasterImage and clear it to the background color
graphics = GraphicsWrapper.FromImage(invalidatedRasterImage, false);
graphics.Clear(backColor);
}
else
{
// Make a GraphicsWrapper object from the rasterImage and clear it to the background color
graphics = GraphicsWrapper.FromImage(rasterImage, false);
graphics.Clear(backColor);
}
}
}
}
private void PaintMarkers(GdiRenderer renderer, SvgStyleableElement styleElm, GraphicsWrapper gr)
{
// OPTIMIZE
if (styleElm is ISharpMarkerHost)
{
string markerStartUrl = extractMarkerUrl(styleElm.GetPropertyValue("marker-start", "marker"));
string markerMiddleUrl = extractMarkerUrl(styleElm.GetPropertyValue("marker-mid", "marker"));
string markerEndUrl = extractMarkerUrl(styleElm.GetPropertyValue("marker-end", "marker"));
RenderingNode grNode;
if (markerStartUrl.Length > 0)
{
grNode = renderer.GetGraphicsNodeByUri(styleElm.BaseURI, markerStartUrl);
if (grNode is SvgMarkerGraphicsNode)
{
((SvgMarkerGraphicsNode)grNode).PaintMarker(renderer, gr, SvgMarkerPosition.Start, styleElm);
}
}
if (markerMiddleUrl.Length > 0)
{
// TODO markerMiddleUrl != markerStartUrl
grNode = renderer.GetGraphicsNodeByUri(styleElm.BaseURI, markerMiddleUrl);
if (grNode is SvgMarkerGraphicsNode)
{
((SvgMarkerGraphicsNode)grNode).PaintMarker(renderer, gr, SvgMarkerPosition.Mid, styleElm);
}
}
if (markerEndUrl.Length > 0)
{
// TODO: markerEndUrl != markerMiddleUrl
grNode = renderer.GetGraphicsNodeByUri(styleElm.BaseURI, markerEndUrl);
if (grNode is SvgMarkerGraphicsNode)
{
((SvgMarkerGraphicsNode)grNode).PaintMarker(renderer, gr, SvgMarkerPosition.End, styleElm);
}
}
}
}
public override void Render(ISvgRenderer renderer)
{
GdiRenderer gdiRenderer = renderer as GdiRenderer;
GraphicsWrapper graphics = gdiRenderer.GraphicsWrapper;
if (!(element is SvgClipPathElement) && !(element.ParentNode is SvgClipPathElement))
{
SvgStyleableElement styleElm = element as SvgStyleableElement;
if (styleElm != null)
{
string sVisibility = styleElm.GetPropertyValue("visibility");
string sDisplay = styleElm.GetPropertyValue("display");
if (element is ISharpGDIPath && sVisibility != "hidden" && sDisplay != "none")
{
GraphicsPath gp = ((ISharpGDIPath)element).GetGraphicsPath();
if (gp != null)
{
Clip(graphics);
GdiSvgPaint fillPaint = new GdiSvgPaint(styleElm, "fill");
Brush brush = fillPaint.GetBrush(gp);
GdiSvgPaint strokePaint = new GdiSvgPaint(styleElm, "stroke");
Pen pen = strokePaint.GetPen(gp);
if (brush != null)
{
if (brush is PathGradientBrush)
{
GradientPaintServer gps = fillPaint.PaintServer as GradientPaintServer;
//GraphicsContainer container = graphics.BeginContainer();
graphics.SetClip(gps.GetRadialGradientRegion(gp.GetBounds()), CombineMode.Exclude);
SolidBrush tempBrush = new SolidBrush(((PathGradientBrush)brush).InterpolationColors.Colors[0]);
graphics.FillPath(this, tempBrush, gp);
tempBrush.Dispose();
graphics.ResetClip();
//graphics.EndContainer(container);
}
graphics.FillPath(this, brush, gp);
brush.Dispose();
}
if (pen != null)
{
if (pen.Brush is PathGradientBrush)
{
GradientPaintServer gps = strokePaint.PaintServer as GradientPaintServer;
GraphicsContainerWrapper container = graphics.BeginContainer();
graphics.SetClip(gps.GetRadialGradientRegion(gp.GetBounds()), CombineMode.Exclude);
SolidBrush tempBrush = new SolidBrush(((PathGradientBrush)pen.Brush).InterpolationColors.Colors[0]);
Pen tempPen = new Pen(tempBrush, pen.Width);
graphics.DrawPath(this, tempPen, gp);
tempPen.Dispose();
tempBrush.Dispose();
graphics.EndContainer(container);
}
graphics.DrawPath(this, pen, gp);
pen.Dispose();
}
}
}
PaintMarkers(gdiRenderer, styleElm, graphics);
}
}
}
public override void AfterRender(ISvgRenderer renderer)
{
GraphicsWrapper graphics = ((GdiRenderer)renderer).GraphicsWrapper;
graphics.EndContainer(graphicsContainer);
}
protected void Clip(GraphicsWrapper gr)
{
// 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 (element is ISvgSvgElement ||
element is ISvgMarkerElement ||
element is ISvgSymbolElement ||
element is ISvgPatternElement)
{
// check overflow property
CssValue overflow = ((SvgElement)element).GetComputedCssValue("overflow", String.Empty) as CssValue;
// TODO: clip can have "rect(10 10 auto 10)"
CssPrimitiveValue clip = ((SvgElement)element).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 (element is ISvgSvgElement)
{
ISvgSvgElement svgElement = (ISvgSvgElement)element;
SvgRect viewPort = svgElement.Viewport as SvgRect;
clipRect = viewPort.ToRectangleF();
IRect clipShape = (Rect)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 (element is ISvgSvgElement)
{
ISvgSvgElement svgElement = (ISvgSvgElement)element;
SvgRect viewPort = svgElement.Viewport as SvgRect;
clipRect = viewPort.ToRectangleF();
}
else if (element is ISvgMarkerElement ||
element is ISvgSymbolElement ||
element 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 (element is IGraphicsElement ||
element is IContainerElement)
{
CssPrimitiveValue clipPath = ((SvgElement)element).GetComputedCssValue("clip-path", String.Empty) as CssPrimitiveValue;
if (clipPath != null && clipPath.PrimitiveType == CssPrimitiveType.Uri)
{
string absoluteUri = ((SvgElement)element).ResolveUri(clipPath.GetStringValue());
SvgClipPathElement eClipPath = ((SvgDocument)element.OwnerDocument).GetNodeByUri(absoluteUri) as SvgClipPathElement;
if (eClipPath != null)
{
GraphicsPath gpClip = eClipPath.GetGraphicsPath();
SvgUnitType pathUnits = (SvgUnitType)eClipPath.ClipPathUnits.AnimVal;
if (pathUnits == SvgUnitType.ObjectBoundingBox)
{
SvgTransformableElement transElement = element 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: " + element.GetType());
}
}
else
{
gr.SetClip(gpClip);
}
}
}
}
#endregion
}
/// <summary>
/// AfterRender - Dispose of Graphics object created for rendering.
/// </summary>
private void RendererAfterRender()
{
if (graphics != null)
{
// Check if we only invalidated a rect
if (invalidRect != RectangleF.Empty)
{
// We actually drew everything on invalidatedRasterImage and now we
// need to copy that to rasterImage
Graphics tempGraphics = Graphics.FromImage(rasterImage);
tempGraphics.DrawImage(invalidatedRasterImage, invalidRect.X, invalidRect.Y,
invalidRect, GraphicsUnit.Pixel);
tempGraphics.Dispose();
tempGraphics = null;
// If we currently have an idMapRaster here, then we need to create
// a temporary graphics object to draw the invalidated portion from
// our main graphics window onto it.
if (idMapRaster != null)
{
tempGraphics = Graphics.FromImage(idMapRaster);
tempGraphics.DrawImage(graphics.IdMapRaster, invalidRect.X, invalidRect.Y,
invalidRect, GraphicsUnit.Pixel);
tempGraphics.Dispose();
tempGraphics = null;
}
else
{
idMapRaster = graphics.IdMapRaster;
}
// We have updated the invalid region
invalidRect = RectangleF.Empty;
}
else
{
if (idMapRaster != null && idMapRaster != graphics.IdMapRaster)
idMapRaster.Dispose();
idMapRaster = graphics.IdMapRaster;
}
graphics.Dispose();
graphics = null;
}
}
protected void fitToViewbox(GraphicsWrapper graphics, RectangleF elmRect)
{
if ( element is ISvgFitToViewBox )
{
ISvgFitToViewBox fitToVBElm = (ISvgFitToViewBox) element;
SvgPreserveAspectRatio spar = (SvgPreserveAspectRatio)fitToVBElm.PreserveAspectRatio.AnimVal;
float[] translateAndScale = spar.FitToViewBox(
(SvgRect)fitToVBElm.ViewBox.AnimVal,
new SvgRect(elmRect.X, elmRect.Y, elmRect.Width, elmRect.Height)
);
graphics.TranslateTransform(translateAndScale[0], translateAndScale[1]);
graphics.ScaleTransform(translateAndScale[2], translateAndScale[3]);
}
}
/// <summary>
/// BeforeRender - Make sure we have a Graphics object to render to.
/// If we don't have one, then create one to matche the SvgWindow's
/// physical dimensions.
/// </summary>
internal void RendererBeforeRender()
{
// Testing for null here allows "advanced" developers to create their own Graphics object for rendering
if (graphics == null)
{
// Get the current SVGWindow's width and height
int innerWidth = (int)window.InnerWidth;
int innerHeight = (int)window.InnerHeight;
// Make sure we have an actual area to render to
if (innerWidth > 0 && innerHeight > 0)
{
// See if we already have a rasterImage that matches the current SVGWindow dimensions
if (rasterImage == null || rasterImage.Width != innerWidth || rasterImage.Height != innerHeight)
{
// Nope, so create one
if (rasterImage != null)
{
rasterImage.Dispose();
rasterImage = null;
}
rasterImage = new Bitmap(innerWidth, innerHeight);
}
// Maybe we are only repainting an invalidated section
if (invalidRect != RectangleF.Empty)
{
// TODO: Worry about pan...
if (invalidRect.X < 0)
invalidRect.X = 0;
if (invalidRect.Y < 0)
invalidRect.Y = 0;
if (invalidRect.Right > innerWidth)
invalidRect.Width = innerWidth-invalidRect.X;
if (invalidRect.Bottom > innerHeight)
invalidRect.Height = innerHeight-invalidRect.Y;
if (invalidatedRasterImage == null || invalidatedRasterImage.Width < invalidRect.Right ||
invalidatedRasterImage.Height < invalidRect.Bottom)
{
// Nope, so create one
if (invalidatedRasterImage != null)
{
invalidatedRasterImage.Dispose();
invalidatedRasterImage = null;
}
invalidatedRasterImage = new Bitmap((int)invalidRect.Right, (int)invalidRect.Bottom);
}
// Make a GraphicsWrapper object from the regionRasterImage and clear it to the background color
graphics = GraphicsWrapper.FromImage(invalidatedRasterImage, false);
graphics.Clear(backColor);
}
else
{
// Make a GraphicsWrapper object from the rasterImage and clear it to the background color
graphics = GraphicsWrapper.FromImage(rasterImage, false);
graphics.Clear(backColor);
}
}
}
}
