public void EnsureServer(SvgElement styleOwner)
{
if (!_serverLoaded && styleOwner != null)
{
if (DeferredId == "currentColor")
{
var colorElement = (from e in styleOwner.ParentsAndSelf.OfType <SvgElement>()
where e.Color != None && e.Color != NotSet && e.Color != Inherit
select e).FirstOrDefault();
_concreteServer = colorElement?.Color;
}
else
{
_concreteServer = styleOwner.OwnerDocument.IdManager.GetElementById(DeferredId) as SvgPaintServer;
_fallbackServer = FallbackServer;
if (_fallbackServer == null)
{
_fallbackServer = None;
}
else if (!(_fallbackServer is SvgColourServer ||
(_fallbackServer is SvgDeferredPaintServer && string.Equals(((SvgDeferredPaintServer)_fallbackServer).DeferredId, "currentColor"))))
{
_fallbackServer = Inherit;
}
}
_serverLoaded = true;
}
}
/// <summary>
/// Renders the fill of the <see cref="SvgVisualElement"/> to the specified <see cref="ISvgRenderer"/>
/// </summary>
/// <param name="renderer">The <see cref="ISvgRenderer"/> object to render to.</param>
/// <param name="fill"></param>
protected internal virtual bool RenderFill(ISvgRenderer renderer, SvgPaintServer fill = null)
{
fill = fill ?? Fill;
if (fill != null && fill != SvgPaintServer.None)
{
renderer.FillPath(Path(renderer), fill.GetColor(this, renderer, FixOpacityValue(FillOpacity), false));
return(true);
}
return(false);
}
public static T TryGet <T>(SvgPaintServer server, SvgElement parent) where T : SvgPaintServer
{
if (!(server is SvgDeferredPaintServer))
{
return(server as T);
}
var deferred = (SvgDeferredPaintServer)server;
deferred.EnsureServer(parent);
return((deferred._concreteServer ?? deferred._fallbackServer) as T);
}
/// <summary>
/// Common code for rendering a marker once the orientation angle has been calculated
/// </summary>
/// <param name="fAngle"></param>
/// <param name="pRenderer"></param>
/// <param name="pOwner"></param>
/// <param name="pMarkerPoint"></param>
private void RenderPart2(float fAngle, ISvgRenderer pRenderer, SvgVisualElement pOwner, PointF pMarkerPoint)
{
using (var pRenderPen = CreatePen(pOwner, pRenderer))
{
using (var markerPath = GetClone(pOwner))
{
using (var transMatrix = new Matrix())
{
transMatrix.Translate(pMarkerPoint.X, pMarkerPoint.Y);
if (Orient.IsAuto)
{
transMatrix.Rotate(fAngle);
}
else
{
transMatrix.Rotate(Orient.Angle);
}
switch (MarkerUnits)
{
case SvgMarkerUnits.strokeWidth:
transMatrix.Translate(AdjustForViewBoxWidth(-RefX.ToDeviceValue(pRenderer, UnitRenderingType.Horizontal, this) *
pOwner.StrokeWidth.ToDeviceValue(pRenderer, UnitRenderingType.Other, this)),
AdjustForViewBoxHeight(-RefY.ToDeviceValue(pRenderer, UnitRenderingType.Vertical, this) *
pOwner.StrokeWidth.ToDeviceValue(pRenderer, UnitRenderingType.Other, this)));
break;
case SvgMarkerUnits.userSpaceOnUse:
transMatrix.Translate(-RefX.ToDeviceValue(pRenderer, UnitRenderingType.Horizontal, this),
-RefY.ToDeviceValue(pRenderer, UnitRenderingType.Vertical, this));
break;
}
markerPath.Transform(transMatrix);
if (pRenderPen != null)
{
pRenderer.DrawPath(pRenderPen, markerPath);
}
SvgPaintServer pFill = this.Children.First().Fill;
SvgFillRule pFillRule = FillRule; // TODO: What do we use the fill rule for?
float fOpacity = FillOpacity;
if (pFill != null)
{
using (var pBrush = pFill.GetBrush(this, pRenderer, fOpacity))
{
pRenderer.FillPath(pBrush, markerPath);
}
}
}
}
}
}
public static T TryGet <T>(SvgPaintServer server, SvgElement parent) where T : SvgPaintServer
{
var deferred = server as SvgDeferredPaintServer;
if (deferred == null)
{
return(server as T);
}
else
{
deferred.EnsureServer(parent);
return(deferred._concreteServer as T);
}
}
/// <summary>
/// Renders the stroke of the <see cref="SvgVisualElement"/> to the specified <see cref="ISvgRenderer"/>
/// </summary>
/// <param name="renderer">The <see cref="ISvgRenderer"/> object to render to.</param>
/// <param name="stroke"></param>
protected internal virtual bool RenderStroke(ISvgRenderer renderer, SvgPaintServer stroke = null)
{
stroke = stroke ?? Stroke;
if (stroke != null && stroke != SvgPaintServer.None)
{
var strokeWidth = StrokeWidth.ToDeviceValue(renderer, UnitRenderingType.Other, this);
renderer.DrawPath(Path(renderer), stroke.GetColor(this, renderer, FixOpacityValue(StrokeOpacity), true), strokeWidth);
return(true);
}
return(false);
}
/// <summary>
/// Common code for rendering a marker once the orientation angle has been calculated
/// </summary>
/// <param name="fAngle"></param>
/// <param name="pRenderer"></param>
/// <param name="pOwner"></param>
/// <param name="pMarkerPoint"></param>
private void RenderPart2(float fAngle, SvgRenderer pRenderer, SvgPath pOwner, PointF pMarkerPoint)
{
Pen pRenderPen = CreatePen(pOwner);
GraphicsPath markerPath = GetClone(pOwner);
Matrix transMatrix = new Matrix();
transMatrix.Translate(pMarkerPoint.X, pMarkerPoint.Y);
if (Orient.IsAuto)
{
transMatrix.Rotate(fAngle);
}
else
{
transMatrix.Rotate(Orient.Angle);
}
switch (MarkerUnits)
{
case SvgMarkerUnits.strokeWidth:
transMatrix.Translate(AdjustForViewBoxWidth(-RefX * pOwner.StrokeWidth), AdjustForViewBoxHeight(-RefY * pOwner.StrokeWidth));
break;
case SvgMarkerUnits.userSpaceOnUse:
transMatrix.Translate(-RefX, -RefY);
break;
}
markerPath.Transform(transMatrix);
pRenderer.DrawPath(pRenderPen, markerPath);
SvgPaintServer pFill = Fill;
SvgFillRule pFillRule = FillRule; // TODO: What do we use the fill rule for?
float fOpacity = FillOpacity;
if (pFill != null)
{
Brush pBrush = pFill.GetBrush(this, fOpacity);
pRenderer.FillPath(pBrush, markerPath);
pBrush.Dispose();
}
pRenderPen.Dispose();
markerPath.Dispose();
transMatrix.Dispose();
}
public void EnsureServer(SvgElement styleOwner)
{
if (!_serverLoaded)
{
if (this.DeferredId == "currentColor" && styleOwner != null)
{
var colorElement = (from e in styleOwner.ParentsAndSelf.OfType <SvgElement>()
where e.Color != SvgPaintServer.None && e.Color != SvgColorServer.NotSet &&
e.Color != SvgColorServer.Inherit && e.Color != SvgColorServer.None
select e).FirstOrDefault();
_concreteServer = (colorElement == null ? SvgPaintServer.None : colorElement.Color);
}
else
{
_concreteServer = this.Document.IdManager.GetElementById(this.DeferredId) as SvgPaintServer;
}
_serverLoaded = true;
}
}
/// <summary>
/// Common code for rendering a marker once the orientation angle has been calculated
/// </summary>
/// <param name="fAngle"></param>
/// <param name="pRenderer"></param>
/// <param name="pOwner"></param>
/// <param name="pMarkerPoint"></param>
private void RenderPart2(float fAngle, ISvgRenderer pRenderer, SvgVisualElement pOwner, PointF pMarkerPoint)
{
using (var pRenderPen = CreatePen(pOwner, pRenderer))
{
using (var markerPath = GetClone(pOwner, pRenderer))
{
using (var transMatrix = new Matrix())
{
transMatrix.Translate(pMarkerPoint.X, pMarkerPoint.Y);
if (Orient.IsAuto)
{
transMatrix.Rotate(fAngle);
}
else
{
transMatrix.Rotate(Orient.Angle);
}
switch (MarkerUnits)
{
case SvgMarkerUnits.StrokeWidth:
if (ViewBox.Width > 0 && ViewBox.Height > 0)
{
transMatrix.Scale(MarkerWidth, MarkerHeight);
var strokeWidth = pOwner.StrokeWidth.ToDeviceValue(pRenderer, UnitRenderingType.Other, this);
transMatrix.Translate(AdjustForViewBoxWidth(-RefX.ToDeviceValue(pRenderer, UnitRenderingType.Horizontal, this) *
strokeWidth),
AdjustForViewBoxHeight(-RefY.ToDeviceValue(pRenderer, UnitRenderingType.Vertical, this) *
strokeWidth));
}
else
{
// SvgMarkerUnits.UserSpaceOnUse
// TODO: We know this isn't correct.
// But use this until the TODOs from AdjustForViewBoxWidth and AdjustForViewBoxHeight are done.
// MORE see Unit Test "MakerEndTest.TestArrowCodeCreation()"
transMatrix.Translate(-RefX.ToDeviceValue(pRenderer, UnitRenderingType.Horizontal, this),
-RefY.ToDeviceValue(pRenderer, UnitRenderingType.Vertical, this));
}
break;
case SvgMarkerUnits.UserSpaceOnUse:
transMatrix.Translate(-RefX.ToDeviceValue(pRenderer, UnitRenderingType.Horizontal, this),
-RefY.ToDeviceValue(pRenderer, UnitRenderingType.Vertical, this));
break;
}
if (MarkerElement != null && MarkerElement.Transforms != null)
{
using (var matrix = MarkerElement.Transforms.GetMatrix())
transMatrix.Multiply(matrix);
}
markerPath.Transform(transMatrix);
if (pRenderPen != null)
{
pRenderer.DrawPath(pRenderPen, markerPath);
}
SvgPaintServer pFill = this.Children.First().Fill;
SvgFillRule pFillRule = FillRule; // TODO: What do we use the fill rule for?
if (pFill != null)
{
using (var pBrush = pFill.GetBrush(this, pRenderer, FixOpacityValue(FillOpacity)))
{
pRenderer.FillPath(pBrush, markerPath);
}
}
}
}
}
}
public SvgFallbackPaintServer(SvgPaintServer primary, IEnumerable <SvgPaintServer> fallbacks) : this()
{
_fallbacks = fallbacks;
_primary = primary;
}
/// <summary>
/// Initializes new instance of <see cref="SvgDeferredPaintServer"/> class.
/// </summary>
/// <param name="id"><FuncIRI>, <IRI> or "currentColor".</param>
/// <param name="fallbackServer">"none", "currentColor" or <see cref="SvgColourServer"/> server.</param>
public SvgDeferredPaintServer(string id, SvgPaintServer fallbackServer)
{
DeferredId = id;
FallbackServer = fallbackServer;
}
/// <summary>
/// Initializes a new instance of the <see cref="SvgGradientStop"/> class.
/// </summary>
/// <param name="offset">The offset.</param>
/// <param name="colour">The colour.</param>
public SvgGradientStop(SvgUnit offset, Color colour)
{
this._offset = offset;
this._colour = new SvgColourServer(colour);
this._opacity = 1.0f;
}
/// <summary>
/// Initializes a new instance of the <see cref="SvgGradientStop"/> class.
/// </summary>
public SvgGradientStop()
{
this._offset = new SvgUnit(0.0f);
this._colour = SvgColourServer.NotSet;
this._opacity = 1.0f;
}