Color ParseStopColor(SvgStopElement stop)
{
var color = new SvgColor((string)stop.Style.Get("stop-color"));
var opacity = float.Parse((string)stop.Style.Get("stop-opacity"), CultureInfo.InvariantCulture);
return(Color.FromArgb((int)(255 * opacity), color.Color));
}
private GradientStopCollection GetGradientStops(XmlNodeList stops)
{
int itemCount = stops.Count;
GradientStopCollection gradientStops = new GradientStopCollection(itemCount);
double lastOffset = 0;
for (int i = 0; i < itemCount; i++)
{
SvgStopElement stop = (SvgStopElement)stops.Item(i);
string prop = stop.GetPropertyValue("stop-color");
WpfSvgColor svgColor = new WpfSvgColor(stop, "stop-color");
double offset = stop.Offset.AnimVal;
offset /= 100;
offset = Math.Max(lastOffset, offset);
gradientStops.Add(new GradientStop(svgColor.Color, offset));
lastOffset = offset;
}
if (itemCount == 0)
{
gradientStops.Add(new GradientStop(Colors.Black, 0));
gradientStops.Add(new GradientStop(Colors.Black, 1));
}
return(gradientStops);
}
public static GradientStopCollection ToGradientStops(System.Xml.XmlNodeList stops)
{
int itemCount = stops.Count;
GradientStopCollection gradientStops = new GradientStopCollection(itemCount);
double lastOffset = 0;
for (int i = 0; i < itemCount; i++)
{
SvgStopElement stop = (SvgStopElement)stops.Item(i);
string prop = stop.GetAttribute("stop-color");
string style = stop.GetAttribute("style");
Color color = Colors.Transparent; // no auto-inherited...
if (!string.IsNullOrWhiteSpace(prop) || !string.IsNullOrWhiteSpace(style))
{
SvgColor svgColor = new SvgColor(stop.GetComputedStyle(string.Empty).GetPropertyValue("stop-color"));
if (svgColor.ColorType == SvgColorType.CurrentColor)
{
string sCurColor = stop.GetComputedStyle(string.Empty).GetPropertyValue(CssConstants.PropColor);
svgColor = new SvgColor(sCurColor);
}
TryConvertColor(svgColor.RgbColor, out color);
}
else
{
color = Colors.Black; // the default color...
}
double alpha = 255;
string opacity;
opacity = stop.GetAttribute("stop-opacity"); // no auto-inherit
if (opacity == "inherit") // if explicitly defined...
{
opacity = stop.GetPropertyValue("stop-opacity");
}
if (!string.IsNullOrWhiteSpace(opacity))
{
alpha *= SvgNumber.ParseNumber(opacity);
}
alpha = Math.Min(alpha, 255);
alpha = Math.Max(alpha, 0);
color = Color.FromArgb((byte)Convert.ToInt32(alpha),
color.R, color.G, color.B);
double offset = stop.Offset.AnimVal;
offset /= 100;
offset = Math.Max(lastOffset, offset);
gradientStops.Add(new GradientStop(color, offset));
lastOffset = offset;
}
return(gradientStops);
}
private GradientStopCollection GetGradientStops(XmlNodeList stops)
{
int itemCount = stops.Count;
GradientStopCollection gradientStops = new GradientStopCollection(itemCount);
double lastOffset = 0;
for (int i = 0; i < itemCount; i++)
{
SvgStopElement stop = (SvgStopElement)stops.Item(i);
string prop = stop.GetAttribute("stop-color");
string style = stop.GetAttribute("style");
Color color = Colors.Transparent; // no auto-inherited...
if (!String.IsNullOrEmpty(prop) || !String.IsNullOrEmpty(style))
{
WpfSvgColor svgColor = new WpfSvgColor(stop, "stop-color");
color = svgColor.Color;
}
else
{
color = Colors.Black; // the default color...
double alpha = 255;
string opacity;
opacity = stop.GetAttribute("stop-opacity"); // no auto-inherit
if (opacity == "inherit") // if explicitly defined...
{
opacity = stop.GetPropertyValue("stop-opacity");
}
if (opacity != null && opacity.Length > 0)
{
alpha *= SvgNumber.ParseNumber(opacity);
}
alpha = Math.Min(alpha, 255);
alpha = Math.Max(alpha, 0);
color = Color.FromArgb((byte)Convert.ToInt32(alpha),
color.R, color.G, color.B);
}
double offset = stop.Offset.AnimVal;
offset /= 100;
offset = Math.Max(lastOffset, offset);
gradientStops.Add(new GradientStop(color, offset));
lastOffset = offset;
}
if (itemCount == 0)
{
gradientStops.Add(new GradientStop(Colors.Black, 0));
gradientStops.Add(new GradientStop(Colors.Black, 1));
}
return(gradientStops);
}
private List <Color> GetColors(XmlNodeList stops)
{
List <Color> colors = new List <Color>(stops.Count);
for (int i = 0; i < stops.Count; i++)
{
SvgStopElement stop = (SvgStopElement)stops.Item(i);
string prop = stop.GetPropertyValue("stop-color");
GdiSvgColor svgColor = new GdiSvgColor(stop, "stop-color");
colors.Add(svgColor.Color);
}
return(colors);
}
private List <float> GetPositions(XmlNodeList stops)
{
List <float> positions = new List <float>(stops.Count);
float lastPos = 0;
for (int i = 0; i < stops.Count; i++)
{
SvgStopElement stop = (SvgStopElement)stops.Item(i);
float pos = (float)stop.Offset.AnimVal;
pos /= 100;
pos = Math.Max(lastPos, pos);
positions.Add(pos);
lastPos = pos;
}
return(positions);
}
public virtual void VisitStopElement(SvgStopElement element) => DefaultVisit(element);
protected List <GdiGradientStop> GetGradientStops(XmlNodeList stops)
{
int itemCount = stops.Count;
if (itemCount == 0)
{
return(new List <GdiGradientStop>());
}
var gradientStops = new List <GdiGradientStop>(itemCount);
double lastOffset = 0;
for (int i = 0; i < itemCount; i++)
{
SvgStopElement stop = (SvgStopElement)stops.Item(i);
if (stop == null)
{
continue;
}
string prop = stop.GetAttribute("stop-color");
string style = stop.GetAttribute("style");
Color color = Color.Transparent; // no auto-inherited...
if (!string.IsNullOrWhiteSpace(prop) || !string.IsNullOrWhiteSpace(style))
{
GdiSvgColor svgColor = new GdiSvgColor(stop, "stop-color");
color = svgColor.Color;
}
else
{
color = Color.Black; // the default color...
double alpha = 255;
string opacity;
opacity = stop.GetAttribute("stop-opacity"); // no auto-inherit
if (opacity == "inherit") // if explicitly defined...
{
opacity = stop.GetPropertyValue("stop-opacity");
}
if (!string.IsNullOrWhiteSpace(opacity))
{
alpha *= SvgNumber.ParseNumber(opacity);
}
alpha = Math.Min(alpha, 255);
alpha = Math.Max(alpha, 0);
color = Color.FromArgb((byte)Convert.ToInt32(alpha), color.R, color.G, color.B);
}
double offset = (stop.Offset == null) ? 0 : stop.Offset.AnimVal;
offset /= 100;
offset = Math.Max(lastOffset, offset);
gradientStops.Add(new GdiGradientStop(color, (float)offset));
lastOffset = offset;
}
if (itemCount == 0)
{
gradientStops.Add(new GdiGradientStop(Color.Black, 0));
gradientStops.Add(new GdiGradientStop(Color.Black, 1));
}
return(gradientStops);
}
