/// <summary>
/// Generate the XAML Path source code for a visual
/// </summary>
private static void GeneratePathGroup(GraphicVisual visual, StringBuilder result, int level, GeometryGeneratorType geometryGeneratorType)
{
switch (visual)
{
case GraphicGroup group:
{
var tag = "Grid";
var indentTag = SourceFormatterHelper.GetTagIndent(level);
result.Append($"{indentTag}<{tag}");
bool tagIndent = false;
if (!DoubleUtilities.IsEqual(group.Opacity, 1.0))
{
tagIndent = true;
string opac = string.Format(CultureInfo.InvariantCulture, " Opacity=\"{0}\"", DoubleUtilities.FormatString(group.Opacity));
result.Append(opac);
}
if (group.Clip != null)
{
if (tagIndent)
{
var indentProperty = SourceFormatterHelper.GetPropertyIndent(level, tag);
result.AppendLine();
result.Append(indentProperty);
}
else
{
result.Append(" ");
}
result.Append(string.Format("Clip=\""));
var stream = StreamSourceGenerator.GenerateStreamGeometry(group.Clip);
result.Append(stream);
result.Append("\"");
}
result.AppendLine(">");
foreach (var childVisual in group.Children)
{
GeneratePathGroup(childVisual, result, level + 1, geometryGeneratorType);
}
result.AppendLine($"{indentTag}</{tag}>");
break;
}
case GraphicPath graphicPath:
{
result.AppendLine(GeneratePath(graphicPath, false, level, geometryGeneratorType));
break;
}
}
}
/// <summary>
/// Generate gradient stops
/// </summary>
private static void GenerateGradientStops(StringBuilder result, string indent, List <GraphicGradientStop> gradientStops)
{
foreach (var stop in gradientStops)
{
Color color = stop.Color;
var offset = stop.Position;
result.AppendLine(string.Format(CultureInfo.InvariantCulture, "{0}<GradientStop Color=\"{1}\" Offset=\"{2}\"/>",
indent,
SourceFormatterHelper.FormatColorParamter(color),
DoubleUtilities.FormatString(offset)));
}
}
/// <summary>
/// Generates the drawing brush source code for a given graphic drawing.
/// </summary>
public static string Generate(GraphicVisual visual, GeometryGeneratorType geometryGeneratorType)
{
StringBuilder result = new StringBuilder();
var indentTag = SourceFormatterHelper.GetTagIndent(1);
result.AppendLine("<DrawingBrush Stretch=\"Uniform\">");
result.AppendLine($"{indentTag}<DrawingBrush.Drawing>");
Generate(visual, result, 2, geometryGeneratorType);
result.AppendLine($"{indentTag}</DrawingBrush.Drawing>");
result.AppendLine("</DrawingBrush>");
return(result.ToString());
}
/// <summary>
/// Generate the raw (pure) stream geometry for a single graphic path
/// </summary>
public static string GenerateStreamGeometry(GraphicPathGeometry geometry, bool includeFillRule = true)
{
StringBuilder result = new StringBuilder();
bool closeLastPath = false;
if (includeFillRule)
{
switch (geometry.FillRule)
{
case GraphicFillRule.EvenOdd:
result.Append("F0");
break;
case GraphicFillRule.NoneZero:
result.Append("F1");
break;
}
}
foreach (var segment in geometry.Segments)
{
switch (segment)
{
case GraphicMoveSegment graphicMove:
{
if (closeLastPath)
{
result.Append("z ");
}
result.Append("M");
SourceFormatterHelper.AppendPoint(result, graphicMove.StartPoint.X, graphicMove.StartPoint.Y);
closeLastPath = graphicMove.IsClosed;
break;
}
case GraphicLineSegment graphicLineTo:
{
result.Append("L");
SourceFormatterHelper.AppendPoint(result, graphicLineTo.To);
break;
}
case GraphicCubicBezierSegment graphicCubicBezier:
{
result.Append("C");
SourceFormatterHelper.AppendPoint(result, graphicCubicBezier.ControlPoint1);
SourceFormatterHelper.AppendPoint(result, graphicCubicBezier.ControlPoint2);
SourceFormatterHelper.AppendPoint(result, graphicCubicBezier.EndPoint);
break;
}
case GraphicQuadraticBezierSegment graphicQuadraticBezier:
{
result.Append("Q");
SourceFormatterHelper.AppendPoint(result, graphicQuadraticBezier.ControlPoint);
SourceFormatterHelper.AppendPoint(result, graphicQuadraticBezier.EndPoint);
break;
}
default:
break;
}
}
if (closeLastPath)
{
result.Append("z");
}
var len = result.Length;
if (result[len - 1] == ' ')
{
result.Remove(len - 1, 1);
}
return(result.ToString());
}
/// <summary>
/// Generate the XAML source code (a <Path/> for a single graphic path
/// </summary>
private static string GeneratePath(GraphicPath graphicPath, bool stretch, int level, GeometryGeneratorType geometryGeneratorType)
{
var tag = "Path";
var indentTag = SourceFormatterHelper.GetTagIndent(level);
var indentProperty = SourceFormatterHelper.GetPropertyIndent(level, tag);
StringBuilder result = new StringBuilder();
string stretchParam = stretch ? "Uniform" : "None";
result.Append($"{indentTag}<{tag} Stretch=\"{stretchParam}\"");
bool fillColorInExtendedProperties = false;
bool strokeColorInExtendedProperties = false;
if (graphicPath.FillBrush != null)
{
if (graphicPath.FillBrush is GraphicSolidColorBrush solidFillColor)
{
result.AppendLine();
Color color = solidFillColor.Color;
result.Append(indentProperty);
result.Append(string.Format("Fill=\"{0}\"", SourceFormatterHelper.FormatColorParamter(color)));
}
else
{
fillColorInExtendedProperties = true;
}
}
if (graphicPath.StrokeBrush != null)
{
if (graphicPath.StrokeBrush is GraphicSolidColorBrush solidStrokeColor)
{
result.AppendLine();
Color color = solidStrokeColor.Color;
result.Append(indentProperty);
result.Append(string.Format("Stroke=\"{0}\" ", SourceFormatterHelper.FormatColorParamter(color)));
}
else
{
strokeColorInExtendedProperties = true;
}
result.AppendLine();
result.Append(indentProperty);
result.Append(string.Format(CultureInfo.InvariantCulture, "StrokeThickness=\"{0}\" ", DoubleUtilities.FormatString(graphicPath.StrokeThickness)));
if (graphicPath.StrokeLineCap != GraphicLineCap.Flat)
{
result.AppendLine();
result.Append(indentProperty);
result.AppendLine(string.Format(CultureInfo.InvariantCulture, "StrokeStartLineCap=\"{0}\" ", Converter.ConvertToWPF(graphicPath.StrokeLineCap).ToString()));
result.Append(indentProperty);
result.Append(string.Format(CultureInfo.InvariantCulture, "StrokeEndLineCap=\"{0}\" ", Converter.ConvertToWPF(graphicPath.StrokeLineCap).ToString()));
}
if (graphicPath.StrokeDashes != null)
{
if (graphicPath.StrokeLineCap != GraphicLineCap.Flat)
{
result.AppendLine();
result.Append(indentProperty);
result.Append(string.Format(CultureInfo.InvariantCulture, "StrokeDashCap=\"{0}\" ", Converter.ConvertToWPF(graphicPath.StrokeLineCap).ToString()));
}
result.AppendLine();
result.Append(indentProperty);
result.Append("StrokeDashArray=\"");
for (int i = 0; i < graphicPath.StrokeDashes.Count; i++)
{
if (i != 0)
{
result.Append(" ");
}
result.Append(DoubleUtilities.FormatString(graphicPath.StrokeDashes[i]));
}
result.AppendLine("\"");
if (!DoubleUtilities.IsZero(graphicPath.StrokeDashOffset))
{
result.AppendLine();
result.Append(indentProperty);
result.Append(string.Format(CultureInfo.InvariantCulture, "StrokeDashOffset=\"{0}\"", DoubleUtilities.FormatString(graphicPath.StrokeDashOffset)));
}
}
if (graphicPath.StrokeLineJoin != GraphicLineJoin.Miter)
{
result.AppendLine();
result.Append(indentProperty);
result.Append(string.Format(CultureInfo.InvariantCulture, "StrokeLineJoin=\"{0}\" ", Converter.ConvertToWpf(graphicPath.StrokeLineJoin).ToString()));
}
else
if (!DoubleUtilities.IsEqual(graphicPath.StrokeMiterLimit, 10))
{
result.AppendLine();
result.Append(indentProperty);
result.Append(string.Format(CultureInfo.InvariantCulture, "MiterLimit=\"{0}\"", DoubleUtilities.FormatString(graphicPath.StrokeMiterLimit)));
}
}
if (geometryGeneratorType == GeometryGeneratorType.Stream)
{
result.AppendLine();
result.Append(indentProperty);
result.Append("Data=\"");
result.Append(StreamSourceGenerator.GenerateStreamGeometry(graphicPath.Geometry));
result.Append("\"");
}
if (geometryGeneratorType == GeometryGeneratorType.PathGeometry || fillColorInExtendedProperties || strokeColorInExtendedProperties)
{
result.AppendLine(">");
if (geometryGeneratorType == GeometryGeneratorType.PathGeometry)
{
var indent1 = SourceFormatterHelper.GetTagIndent(level + 1);
result.Append(indent1);
result.AppendLine("<Path.Data>");
PathGeometrySourceGenerator.GeneratePathGeometry(result, graphicPath.Geometry, level + 2);
result.Append(indent1);
result.AppendLine("</Path.Data>");
}
if (fillColorInExtendedProperties)
{
BrushSourceGenerator.GenerateBrush(result, graphicPath.FillBrush, "Path.Fill", level + 1);
}
if (strokeColorInExtendedProperties)
{
BrushSourceGenerator.GenerateBrush(result, graphicPath.StrokeBrush, "Path.Stroke", level + 1);
}
result.Append(indentTag);
result.Append($"</{tag}>");
}
else
{
result.Append(" />");
}
return(result.ToString());
}
/// <summary>
/// Generate the source code for a complex brush
/// </summary>
public static void GenerateBrush(StringBuilder result, GraphicBrush graphicBrush, string element, int level)
{
var indentTag = SourceFormatterHelper.GetTagIndent(level);
var indent1Tag = SourceFormatterHelper.GetTagIndent(level + 1);
var indent2Tag = SourceFormatterHelper.GetTagIndent(level + 2);
result.AppendLine(string.Format("{0}<{1}>", indentTag, element));
switch (graphicBrush)
{
case GraphicLinearGradientBrush linearGradientBrush:
{
var tag = "LinearGradientBrush";
var indentProperty = SourceFormatterHelper.GetPropertyIndent(level + 1, tag);
result.AppendLine(string.Format(CultureInfo.InvariantCulture, "{0}<{1} StartPoint=\"{2}\"",
indent1Tag,
tag,
SourceFormatterHelper.FormatPointParamter(linearGradientBrush.StartPoint)));
result.Append(string.Format(CultureInfo.InvariantCulture, "{0}EndPoint=\"{1}\"",
indentProperty,
SourceFormatterHelper.FormatPointParamter(linearGradientBrush.EndPoint)));
if (linearGradientBrush.MappingMode != GraphicBrushMappingMode.RelativeToBoundingBox)
{
result.AppendLine();
result.Append(string.Format(CultureInfo.InvariantCulture, "{0}MappingMode=\"{1}\"",
indentProperty,
Converter.ConvertToWpf(linearGradientBrush.MappingMode).ToString()));
}
result.AppendLine(">");
GenerateGradientStops(result, indent2Tag, linearGradientBrush.GradientStops);
result.AppendLine(string.Format("{0}</{1}>", indent1Tag, tag));
break;
}
case GraphicRadialGradientBrush radialGradientBrush:
{
var tag = "RadialGradientBrush";
var indentProperty = SourceFormatterHelper.GetPropertyIndent(level + 1, tag);
result.AppendLine(string.Format(CultureInfo.InvariantCulture, "{0}<{1} GradientOrigin=\"{2}\"",
indent1Tag,
tag,
SourceFormatterHelper.FormatPointParamter(radialGradientBrush.StartPoint)));
result.AppendLine(string.Format(CultureInfo.InvariantCulture, "{0}Center=\"{1}\"",
indentProperty,
SourceFormatterHelper.FormatPointParamter(radialGradientBrush.EndPoint)));
result.AppendLine(string.Format(CultureInfo.InvariantCulture, "{0}RadiusX=\"{1}\"",
indentProperty,
DoubleUtilities.FormatString(radialGradientBrush.RadiusX)));
result.Append(string.Format(CultureInfo.InvariantCulture, "{0}RadiusY=\"{1}\"",
indentProperty,
DoubleUtilities.FormatString(radialGradientBrush.RadiusY)));
if (radialGradientBrush.MappingMode != GraphicBrushMappingMode.RelativeToBoundingBox)
{
result.AppendLine();
result.Append(string.Format(CultureInfo.InvariantCulture, "{0}MappingMode=\"{1}\"",
indentProperty,
Converter.ConvertToWpf(radialGradientBrush.MappingMode).ToString()));
}
result.AppendLine(">");
GenerateGradientStops(result, indent2Tag, radialGradientBrush.GradientStops);
result.AppendLine(string.Format("{0}</{1}>", indent1Tag, tag));
break;
}
default:
{
result.AppendLine(string.Format("{0}<SolidColorBrush Color=\"#FFB0B0B0\" />", indent1Tag));
break;
}
}
result.AppendLine(string.Format("{0}</{1}>", indentTag, element));
}
/// <summary>
/// Generate the pen for a GeometryDrawing
/// </summary>
private static void GeneratePen(StringBuilder result, GraphicPath graphicPath, int level)
{
if (graphicPath.StrokeBrush != null)
{
var indent1 = SourceFormatterHelper.GetTagIndent(level);
var indent2 = SourceFormatterHelper.GetTagIndent(level + 1);
bool strokeColorInExtendedProperties = false;
result.Append(indent1);
result.AppendLine("<GeometryDrawing.Pen>");
var tag = "Pen";
var indentPenProperty = SourceFormatterHelper.GetPropertyIndent(level + 1, tag);
result.Append(indent2);
result.Append(string.Format(CultureInfo.InvariantCulture, "<{0} Thickness=\"{1}\"", tag, DoubleUtilities.FormatString(graphicPath.StrokeThickness)));
if (graphicPath.StrokeLineCap != GraphicLineCap.Flat)
{
result.AppendLine();
result.Append(indentPenProperty);
result.AppendLine(string.Format(CultureInfo.InvariantCulture, "StartLineCap=\"{0}\" ", Converter.ConvertToWPF(graphicPath.StrokeLineCap).ToString()));
result.Append(indentPenProperty);
result.Append(string.Format(CultureInfo.InvariantCulture, "EndLineCap=\"{0}\" ", Converter.ConvertToWPF(graphicPath.StrokeLineCap).ToString()));
}
if (graphicPath.StrokeDashes != null)
{
if (graphicPath.StrokeLineCap != GraphicLineCap.Square)
{
result.AppendLine();
result.Append(indentPenProperty);
result.Append(string.Format(CultureInfo.InvariantCulture, "DashCap=\"{0}\" ", Converter.ConvertToWPF(graphicPath.StrokeLineCap).ToString()));
}
}
if (graphicPath.StrokeLineJoin != GraphicLineJoin.Miter)
{
result.AppendLine();
result.Append(indentPenProperty);
result.Append(string.Format(CultureInfo.InvariantCulture, "LineJoin=\"{0}\" ", Converter.ConvertToWpf(graphicPath.StrokeLineJoin).ToString()));
}
else
if (!DoubleUtilities.IsEqual(graphicPath.StrokeMiterLimit, 10))
{
result.AppendLine();
result.Append(indentPenProperty);
result.Append(string.Format(CultureInfo.InvariantCulture, "MiterLimit=\"{0}\"", DoubleUtilities.FormatString(graphicPath.StrokeMiterLimit)));
}
if (graphicPath.StrokeBrush is GraphicSolidColorBrush strokeColor)
{
result.AppendLine();
Color color = strokeColor.Color;
result.Append(indentPenProperty);
result.Append(string.Format("Brush=\"{0}\"", SourceFormatterHelper.FormatColorParamter(color)));
}
else
{
strokeColorInExtendedProperties = true;
}
if (strokeColorInExtendedProperties || graphicPath.StrokeDashes != null)
{
result.AppendLine(">");
if (graphicPath.StrokeDashes != null)
{
var indent3 = SourceFormatterHelper.GetTagIndent(level + 2);
var indent4 = SourceFormatterHelper.GetTagIndent(level + 3);
var tagDashStyle = "DashStyle";
result.Append(indent3);
result.AppendLine($"<Pen.{tagDashStyle}>");
result.Append(indent4);
result.Append($"<{tagDashStyle} Dashes=\"");
for (int i = 0; i < graphicPath.StrokeDashes.Count; i++)
{
if (i != 0)
{
result.Append(" ");
}
result.Append(DoubleUtilities.FormatString(graphicPath.StrokeDashes[i]));
}
result.Append("\"");
if (!DoubleUtilities.IsZero(graphicPath.StrokeDashOffset))
{
var indentDashStyleProperty = SourceFormatterHelper.GetPropertyIndent(level + 3, tagDashStyle);
result.AppendLine();
result.Append(indentDashStyleProperty);
result.Append(string.Format(CultureInfo.InvariantCulture, "Offset=\"{0}\"", DoubleUtilities.FormatString(graphicPath.StrokeDashOffset)));
}
result.AppendLine("/>");
result.Append(indent3);
result.AppendLine($"</Pen.{tagDashStyle}>");
}
if (strokeColorInExtendedProperties)
{
BrushSourceGenerator.GenerateBrush(result, graphicPath.StrokeBrush, "Pen.Brush", level + 3);
}
result.AppendLine($"{indent2}</{tag}>");
}
else
{
result.AppendLine(" />");
}
result.Append(indent1);
result.AppendLine("</GeometryDrawing.Pen>");
}
}
/// <summary>
/// Generate path
/// </summary>
private static void GeneratePath(GraphicPath graphicPath, StringBuilder result, int level, GeometryGeneratorType geometryGeneratorType)
{
var tag = "GeometryDrawing";
var indentTag = SourceFormatterHelper.GetTagIndent(level);
var indentProperty = SourceFormatterHelper.GetPropertyIndent(level, tag);
result.Append($"{indentTag}<{tag}");
bool fillColorInExtendedProperties = false;
bool firstAttributSet = false;
if (graphicPath.FillBrush != null)
{
if (graphicPath.FillBrush is GraphicSolidColorBrush solidFillColor)
{
firstAttributSet = true;
Color color = solidFillColor.Color;
var brush = string.Format(" Brush=\"{0}\"", SourceFormatterHelper.FormatColorParamter(color));
result.Append(brush);
}
else
{
fillColorInExtendedProperties = true;
}
}
if (geometryGeneratorType == GeometryGeneratorType.Stream)
{
if (firstAttributSet)
{
result.AppendLine();
result.Append(indentProperty);
}
else
{
result.Append(" ");
}
result.Append(string.Format("Geometry=\""));
var stream = StreamSourceGenerator.GenerateStreamGeometry(graphicPath.Geometry);
result.Append(stream);
result.Append("\"");
}
if (geometryGeneratorType == GeometryGeneratorType.PathGeometry || fillColorInExtendedProperties || graphicPath.StrokeBrush != null)
{
result.AppendLine(">");
if (geometryGeneratorType == GeometryGeneratorType.PathGeometry)
{
var indent1 = SourceFormatterHelper.GetTagIndent(level + 1);
result.Append(indent1);
result.AppendLine("<GeometryDrawing.Geometry>");
PathGeometrySourceGenerator.GeneratePathGeometry(result, graphicPath.Geometry, level + 2);
result.Append(indent1);
result.AppendLine("</GeometryDrawing.Geometry>");
}
if (fillColorInExtendedProperties)
{
BrushSourceGenerator.GenerateBrush(result, graphicPath.FillBrush, "GeometryDrawing.Brush", level + 1);
}
if (graphicPath.StrokeBrush != null)
{
GeneratePen(result, graphicPath, level + 1);
}
result.Append(indentTag);
result.AppendLine("</GeometryDrawing>");
}
else
{
result.AppendLine("/>");
}
}
/// <summary>
/// Generate the XAML source code for a PathGeometry plus an optional xKey attribute
/// </summary>
private static void GeneratePathGeometry(StringBuilder result, GraphicPathGeometry geometry, int level, string xKey)
{
bool finalizeLastFigure = false;
var indent = SourceFormatterHelper.GetTagIndent(level);
var indent1 = SourceFormatterHelper.GetTagIndent(level + 1);
var indent2 = SourceFormatterHelper.GetTagIndent(level + 2);
var pathGeometryTag = "PathGeometry";
string fillRule = string.Empty;
switch (geometry.FillRule)
{
case GraphicFillRule.EvenOdd:
fillRule = "EvenOdd";
break;
case GraphicFillRule.NoneZero:
fillRule = "Nonzero";
break;
}
if (string.IsNullOrEmpty(xKey))
{
result.AppendLine(string.Format(CultureInfo.InvariantCulture, "{0}<{1} FillRule=\"{2}\">", indent, pathGeometryTag, fillRule));
}
else
{
var indentPathGeometryProperty = SourceFormatterHelper.GetPropertyIndent(level, pathGeometryTag);
result.AppendLine(string.Format(CultureInfo.InvariantCulture, "{0}<{1} x:Key=\"{2}\"", indent, pathGeometryTag, xKey));
result.AppendLine(string.Format(CultureInfo.InvariantCulture, "{0}FillRule=\"{1}\">", indentPathGeometryProperty, fillRule));
}
var pathFigureTag = "PathFigure";
foreach (var segment in geometry.Segments)
{
switch (segment)
{
case GraphicMoveSegment graphicMove:
{
if (finalizeLastFigure)
{
result.Append(indent1);
result.AppendLine("</PathFigure>");
}
var indentPathFigureProperty = SourceFormatterHelper.GetPropertyIndent(level + 1, pathFigureTag);
result.Append(string.Format(CultureInfo.InvariantCulture, "{0}<{1} IsClosed=", indent1, pathFigureTag));
SourceFormatterHelper.AppendXamlBool(result, graphicMove.IsClosed);
result.AppendLine();
result.Append(indentPathFigureProperty);
result.Append("StartPoint=");
SourceFormatterHelper.AppendXamlPoint(result, graphicMove.StartPoint.X, graphicMove.StartPoint.Y);
result.AppendLine(">");
finalizeLastFigure = true;
break;
}
case GraphicLineSegment graphicLineTo:
{
result.Append(indent2);
result.Append("<LineSegment Point=");
SourceFormatterHelper.AppendXamlPoint(result, graphicLineTo.To);
result.AppendLine(" />");
break;
}
case GraphicCubicBezierSegment graphicCubicBezier:
{
var tag = "BezierSegment";
var indentProperty = SourceFormatterHelper.GetPropertyIndent(level + 2, tag);
result.Append(string.Format(CultureInfo.InvariantCulture, "{0}<{1} Point1=", indent2, tag));
SourceFormatterHelper.AppendXamlPoint(result, graphicCubicBezier.ControlPoint1);
result.AppendLine();
result.Append(indentProperty);
result.Append("Point2=");
SourceFormatterHelper.AppendXamlPoint(result, graphicCubicBezier.ControlPoint2);
result.AppendLine();
result.Append(indentProperty);
result.Append("Point3=");
SourceFormatterHelper.AppendXamlPoint(result, graphicCubicBezier.EndPoint);
result.AppendLine(" />");
break;
}
case GraphicQuadraticBezierSegment graphicQuadraticBezier:
{
var tag = "QuadraticBezierSegment";
var indentProperty = SourceFormatterHelper.GetPropertyIndent(level + 2, tag);
result.Append(string.Format(CultureInfo.InvariantCulture, "{0}<{1} Point1=", indent2, tag));
SourceFormatterHelper.AppendXamlPoint(result, graphicQuadraticBezier.ControlPoint);
result.AppendLine();
result.Append(indentProperty);
result.Append("Point2=");
SourceFormatterHelper.AppendXamlPoint(result, graphicQuadraticBezier.EndPoint);
result.AppendLine(" />");
break;
}
default:
break;
}
}
if (finalizeLastFigure)
{
result.Append(indent1);
result.AppendLine($"</{pathFigureTag}>");
}
result.AppendLine($"{indent}</{pathGeometryTag}>");
}