public void DrawPath(System.Windows.Point start, IList <IPathCommand> commands, double thickness, bool fill = false)
{
m_pen.Width = (float)thickness;
GraphicsPath path = new GraphicsPath();
System.Windows.Point previous = start;
foreach (var command in commands)
{
switch (command.Type)
{
case CommandType.MoveTo:
{
path.StartFigure();
break;
}
case CommandType.LineTo:
{
LineTo line = command as LineTo;
path.AddLine((float)previous.X, (float)previous.Y, (float)line.X + (float)start.X, (float)line.Y + (float)start.Y);
break;
}
case CommandType.CurveTo:
{
CurveTo curveTo = command as CurveTo;
break;
}
case CommandType.EllipticalArcTo:
{
EllipticalArcTo ellipticalArcTo = command as EllipticalArcTo;
//path.AddArc((float)previous.X, (float)previous.Y, (float)ellipticalArcTo.Size.Width, (float)ellipticalArcTo.Size.Height, (float)ellipticalArcTo.RotationAngle, (float)ellipticalArcTo.RotationAngle);
break;
}
case CommandType.QuadraticBeizerCurveTo:
{
QuadraticBeizerCurveTo qbCurveTo = command as QuadraticBeizerCurveTo;
//path.AddBezier((float)previous.X, (float)previous.Y, (float)qbCurveTo.Control.X, (float)qbCurveTo.Control.Y, (float)qbCurveTo.Control.X, (float)qbCurveTo.Control.Y, (float)qbCurveTo.End.X, (float)qbCurveTo.End.Y);
break;
}
}
previous = new System.Windows.Point(start.X + command.End.X, start.Y + command.End.Y);
}
if (fill)
{
m_graphics.FillPath(Brushes.Black, path);
}
m_graphics.DrawPath(m_pen, path);
}
private static void ListPath(Path path, int pgno)
{
IList <Segment> segments = path.Segments;
Console.WriteLine("Path on page {0}:", pgno);
Console.WriteLine("Transformation matrix: {0}", path.Matrix);
foreach (Segment segment in segments)
{
if (segment is MoveTo)
{
MoveTo moveto = segment as MoveTo;
Console.WriteLine(" MoveTo x={0}, y={1}", moveto.Point.H, moveto.Point.V);
}
else if (segment is LineTo)
{
LineTo lineto = segment as LineTo;
Console.WriteLine(" LineTo x={0}, y={1}",
lineto.Point.H, lineto.Point.V);
}
else if (segment is CurveTo)
{
CurveTo curveto = segment as CurveTo;
Console.WriteLine(" CurveTo x1={0}, y1={1}, x2={2}, y2={3}, x3={4}, y3={5}",
curveto.Point1.H, curveto.Point1.V,
curveto.Point2.H, curveto.Point2.V,
curveto.Point3.H, curveto.Point3.V);
}
else if (segment is CurveToV)
{
CurveToV curveto = segment as CurveToV;
Console.WriteLine(" CurveToV x2={0}, y2={1}, x3={2}, y3={3}",
curveto.Point2.H, curveto.Point2.V,
curveto.Point3.H, curveto.Point3.V);
}
else if (segment is CurveToY)
{
CurveToY curveto = segment as CurveToY;
Console.WriteLine(" CurveToV x1={0}, y1={1}, x3={2}, y3={3}",
curveto.Point1.H, curveto.Point1.V,
curveto.Point3.H, curveto.Point3.V);
}
else if (segment is RectSegment)
{
RectSegment rect = segment as RectSegment;
Console.WriteLine(" Rectangle x={0}, y={1}, width={2}, height={3}",
rect.Point.H, rect.Point.V,
rect.Width, rect.Height);
}
else if (segment is ClosePath)
{
Console.WriteLine(" ClosePath");
}
}
}
public void TestCurveTo()
{
var c = new CurveTo(1, 2, 3, 4, 5, 6);
var offset = new Point(7, 8);
var previous = new Point(9, 10);
// Test Shorthand()
Assert.AreEqual("c -8,-8 -6,-6 -4,-4", c.Shorthand(offset, previous));
// Test Flip()
Assert.AreEqual("c -8,-12 -6,-14 -4,-16", c.Flip(false).Shorthand(offset, previous));
Assert.AreEqual("c -10,-8 -12,-6 -14,-4", c.Flip(true).Shorthand(offset, previous));
}
public void CurveTo(CurveTo curveTo)
{
float x3 = (float)curveTo.X3;
float y3 = (float)curveTo.Y3;
_path.AddBezier(
_currentPoint.X,
_currentPoint.Y,
(float)curveTo.X1,
(float)curveTo.Y1,
(float)curveTo.X2,
(float)curveTo.Y2,
x3,
y3);
_currentPoint.X = x3;
_currentPoint.Y = y3;
}
// http://apike.ca/prog_svg_paths.html
public PathShape(SVG svg, XmlNode node) : base(svg, node)
{
if (DefaultFill == null)
{
DefaultFill = new Fill(svg);
DefaultFill.Color = svg.PaintServers.Parse("black");
}
ClosePath = false;
string path = XmlUtil.AttrValue(node, "d", string.Empty);
CommandSplitter cmd = new CommandSplitter(path);
string commandstring;
char command;
List <PathElement> elements = m_elements;
while (true)
{
commandstring = cmd.ReadNext();
if (commandstring.Length == 0)
{
break;
}
ShapeUtil.StringSplitter split = cmd.SplitCommand(commandstring, out command);
if (command == 'm' || command == 'M')
{
elements.Add(new MoveTo(command, split));
if (split.More)
{
elements.Add(new LineTo(command, split));
}
continue;
}
if (command == 'l' || command == 'L' || command == 'H' || command == 'h' || command == 'V' || command == 'v')
{
elements.Add(new LineTo(command, split));
continue;
}
if (command == 'c' || command == 'C')
{
while (split.More)
{
elements.Add(new CurveTo(command, split));
}
continue;
}
if (command == 's' || command == 'S')
{
while (split.More)
{
CurveTo lastshape = elements[elements.Count - 1] as CurveTo;
System.Diagnostics.Debug.Assert(lastshape != null);
elements.Add(new CurveTo(command, split, lastshape.CtrlPoint2));
}
continue;
}
if (command == 'a' || command == 'A')
{
elements.Add(new EllipticalArcTo(command, split));
while (split.More)
{
elements.Add(new EllipticalArcTo(command, split));
}
continue;
}
if (command == 'z' || command == 'Z')
{
ClosePath = true;
continue;
}
// extended format moveto or lineto can contain multiple points which should be translated into lineto
PathElement lastitem = elements[elements.Count - 1];
if (lastitem is MoveTo || lastitem is LineTo || lastitem is CurveTo)
{
//Point p = Point.Parse(s);
//elements.Add(new LineTo(p));
continue;
}
System.Diagnostics.Debug.Assert(false, string.Format("type '{0}' not supported", commandstring));
}
}
public static void Write(this IPathCommand command, System.IO.BinaryWriter writer)
{
switch (command.Type)
{
case CommandType.MoveTo:
{
MoveTo pCommand = command as MoveTo;
writer.Write(pCommand.X);
writer.Write(pCommand.Y);
}
break;
case CommandType.LineTo:
{
LineTo pCommand = command as LineTo;
writer.Write(pCommand.X);
writer.Write(pCommand.Y);
}
break;
case CommandType.CurveTo:
{
CurveTo pCommand = command as CurveTo;
writer.Write(pCommand.ControlStart);
writer.Write(pCommand.ControlEnd);
writer.Write(pCommand.End);
}
break;
case CommandType.SmoothCurveTo:
{
SmoothCurveTo pCommand = command as SmoothCurveTo;
writer.Write(pCommand.ControlEnd);
writer.Write(pCommand.End);
}
break;
case CommandType.EllipticalArcTo:
{
EllipticalArcTo pCommand = command as EllipticalArcTo;
writer.Write(pCommand.Size.Width);
writer.Write(pCommand.Size.Height);
writer.Write(pCommand.End);
writer.Write(pCommand.RotationAngle);
writer.Write(pCommand.IsLargeArc);
writer.Write(pCommand.SweepDirection == SweepDirection.Clockwise);
}
break;
case CommandType.QuadraticBeizerCurveTo:
{
QuadraticBeizerCurveTo pCommand = command as QuadraticBeizerCurveTo;
writer.Write(pCommand.Control);
writer.Write(pCommand.End);
}
break;
case CommandType.SmoothQuadraticBeizerCurveTo:
{
SmoothQuadraticBeizerCurveTo pCommand = command as SmoothQuadraticBeizerCurveTo;
writer.Write(pCommand.End);
}
break;
case CommandType.ClosePath:
{
// Do nothing
}
break;
}
}
public static void Read(this IPathCommand command, System.IO.BinaryReader reader)
{
switch (command.Type)
{
case CommandType.MoveTo:
{
MoveTo pCommand = command as MoveTo;
pCommand.X = reader.ReadDouble();
pCommand.Y = reader.ReadDouble();
}
break;
case CommandType.LineTo:
{
LineTo pCommand = command as LineTo;
pCommand.X = reader.ReadDouble();
pCommand.Y = reader.ReadDouble();
}
break;
case CommandType.CurveTo:
{
CurveTo pCommand = command as CurveTo;
pCommand.ControlStart = reader.ReadPoint();
pCommand.ControlEnd = reader.ReadPoint();
pCommand.End = reader.ReadPoint();
}
break;
case CommandType.SmoothCurveTo:
{
SmoothCurveTo pCommand = command as SmoothCurveTo;
pCommand.ControlEnd = reader.ReadPoint();
pCommand.End = reader.ReadPoint();
}
break;
case CommandType.EllipticalArcTo:
{
EllipticalArcTo pCommand = command as EllipticalArcTo;
pCommand.Size = new System.Windows.Size(reader.ReadDouble(), reader.ReadDouble());
pCommand.End = reader.ReadPoint();
pCommand.RotationAngle = reader.ReadDouble();
pCommand.IsLargeArc = reader.ReadBoolean();
pCommand.SweepDirection = (reader.ReadBoolean() == false ? SweepDirection.Counterclockwise : SweepDirection.Clockwise);
}
break;
case CommandType.QuadraticBeizerCurveTo:
{
QuadraticBeizerCurveTo pCommand = command as QuadraticBeizerCurveTo;
pCommand.Control = reader.ReadPoint();
pCommand.End = reader.ReadPoint();
}
break;
case CommandType.SmoothQuadraticBeizerCurveTo:
{
SmoothQuadraticBeizerCurveTo pCommand = command as SmoothQuadraticBeizerCurveTo;
pCommand.End = reader.ReadPoint();
}
break;
case CommandType.ClosePath:
{
// Do nothing
}
break;
}
}
internal override void Read(System.IO.BinaryReader reader, BinaryReadInfo readInfo)
{
uint length = reader.ReadUInt32();
ID = reader.ReadUInt32();
uint numSections = reader.ReadUInt32();
string componentName = null;
bool canResize = false;
bool canFlip = false;
double minSize = ComponentHelper.GridSize;
List <ComponentProperty> properties = new List <ComponentProperty>();
List <ConnectionGroup> connections = new List <ConnectionGroup>();
List <RenderDescription> renderDescriptions = new List <RenderDescription>();
List <Conditional <FlagOptions> > flagOptions = new List <Conditional <FlagOptions> >();
ComponentDescriptionMetadata descriptionMetadata = new ComponentDescriptionMetadata();
uint?iconResourceId = null;
for (uint sectionCounter = 0; sectionCounter < numSections; sectionCounter++)
{
ushort sectionType = reader.ReadUInt16();
uint sectionLength = reader.ReadUInt32();
#region Metadata
if (sectionType == (uint)BinaryConstants.ComponentSectionType.Metadata)
{
componentName = reader.ReadString();
canResize = reader.ReadBoolean();
canFlip = reader.ReadBoolean();
minSize = reader.ReadDouble();
descriptionMetadata.Type = String.Format("Binary r{0} (*.cdcom)", readInfo.FormatVersion);
descriptionMetadata.GUID = new Guid(reader.ReadBytes(16));
descriptionMetadata.Author = reader.ReadString();
if (readInfo.IsSignatureValid && readInfo.Certificate != null && readInfo.IsCertificateTrusted)
{
descriptionMetadata.Author = readInfo.Certificate.GetNameInfo(X509NameType.EmailName, false);
}
descriptionMetadata.Version = new Version(reader.ReadUInt16(), reader.ReadUInt16());
descriptionMetadata.AdditionalInformation = reader.ReadString();
descriptionMetadata.ImplementSet = reader.ReadString();
descriptionMetadata.ImplementItem = reader.ReadString();
descriptionMetadata.Signature.IsHashValid = readInfo.IsSignatureValid;
descriptionMetadata.Signature.Certificate = readInfo.Certificate;
descriptionMetadata.Signature.IsCertificateTrusted = readInfo.IsCertificateTrusted;
int iconResource = reader.ReadInt32();
if (iconResource != -1)
{
iconResourceId = (uint)iconResource;
}
long created = reader.ReadInt64();
}
#endregion
#region Flags
else if (sectionType == (uint)BinaryConstants.ComponentSectionType.Flags)
{
uint numFlagGroups = reader.ReadUInt32();
for (uint j = 0; j < numFlagGroups; j++)
{
IConditionTreeItem conditions;
if (readInfo.FormatVersion > 1)
{
conditions = reader.ReadConditionTree();
}
else
{
conditions = reader.ReadConditionCollection();
}
FlagOptions value = (FlagOptions)reader.ReadUInt32();
flagOptions.Add(new Conditional <FlagOptions>(value, conditions));
}
}
#endregion
#region Properties
else if (sectionType == (uint)BinaryConstants.ComponentSectionType.Properties)
{
uint numProperties = reader.ReadUInt32();
for (uint j = 0; j < numProperties; j++)
{
string propertyName = reader.ReadString();
string serializedName = reader.ReadString();
string displayName = reader.ReadString();
BinaryType propType;
object rawDefaultValue = reader.ReadType(out propType);
PropertyUnion defaultValue = propType.ToPropertyUnion(rawDefaultValue);
string[] enumOptions = null;
if (propType == BinaryType.Enum)
{
enumOptions = new string[reader.ReadInt32()];
for (int k = 0; k < enumOptions.Length; k++)
{
enumOptions[k] = reader.ReadString();
}
}
// Format rules
List <ComponentPropertyFormat> formatRules = new List <ComponentPropertyFormat>();
uint numFormatRules = reader.ReadUInt32();
for (uint k = 0; k < numFormatRules; k++)
{
IConditionTreeItem conditions;
if (readInfo.FormatVersion > 1)
{
conditions = reader.ReadConditionTree();
}
else
{
conditions = reader.ReadConditionCollection();
}
string formatRule = reader.ReadString();
formatRules.Add(new ComponentPropertyFormat(formatRule, conditions));
}
// Other conditions
uint numOtherConditions = reader.ReadUInt32();
Dictionary <PropertyOtherConditionType, IConditionTreeItem> otherConditions = new Dictionary <PropertyOtherConditionType, IConditionTreeItem>((int)numOtherConditions);
for (uint k = 0; k < numOtherConditions; k++)
{
uint uintConditionType = reader.ReadUInt32();
IConditionTreeItem conditions;
if (readInfo.FormatVersion > 1)
{
conditions = reader.ReadConditionTree();
}
else
{
conditions = reader.ReadConditionCollection();
}
PropertyOtherConditionType conditionType = (PropertyOtherConditionType)uintConditionType;
otherConditions.Add(conditionType, conditions);
}
properties.Add(new ComponentProperty(propertyName, serializedName, displayName, BinaryIOExtentions.BinaryTypeToPropertyType(propType), defaultValue, formatRules.ToArray(), otherConditions, enumOptions));
}
}
#endregion
#region Configurations
else if (sectionType == (uint)BinaryConstants.ComponentSectionType.Configurations)
{
uint numConfigurations = reader.ReadUInt32();
for (int j = 0; j < numConfigurations; j++)
{
string configurationName = reader.ReadString();
string implementationName = reader.ReadString();
int numSetters = reader.ReadInt32();
var setters = new Dictionary <string, PropertyUnion>(numSetters);
for (int k = 0; k < numSetters; k++)
{
BinaryType tempType;
string name = reader.ReadString();
var setterValue = reader.ReadType(out tempType);
setters.Add(name, tempType.ToPropertyUnion(setterValue));
}
int iconID = reader.ReadInt32();
var configuration = new ComponentConfiguration(implementationName, configurationName, setters);
descriptionMetadata.Configurations.Add(configuration);
if (iconID != -1)
{
iconResources.Add(configuration, (uint)iconID);
}
}
}
#endregion
#region Connections
else if (sectionType == (uint)BinaryConstants.ComponentSectionType.Connections)
{
uint numConnectionGroups = reader.ReadUInt32();
List <ConnectionGroup> connectionGroups = new List <ConnectionGroup>();
for (int j = 0; j < numConnectionGroups; j++)
{
IConditionTreeItem conditions;
if (readInfo.FormatVersion > 1)
{
conditions = reader.ReadConditionTree();
}
else
{
conditions = reader.ReadConditionCollection();
}
List <ConnectionDescription> tConnections = new List <ConnectionDescription>();
uint numConnections = reader.ReadUInt32();
for (uint k = 0; k < numConnections; k++)
{
tConnections.Add(new ConnectionDescription(reader.ReadComponentPoint(), reader.ReadComponentPoint(), (ConnectionEdge)reader.ReadInt32(), reader.ReadString()));
}
connections.Add(new ConnectionGroup(conditions, tConnections.ToArray()));
}
}
#endregion
#region Render
else if (sectionType == (uint)BinaryConstants.ComponentSectionType.Render)
{
uint numRenderGroups = reader.ReadUInt32();
for (uint j = 0; j < numRenderGroups; j++)
{
IConditionTreeItem conditions;
if (readInfo.FormatVersion > 1)
{
conditions = reader.ReadConditionTree();
}
else
{
conditions = reader.ReadConditionCollection();
}
int numRenderCommands = (int)reader.ReadUInt32();
List <IRenderCommand> renderCommands = new List <IRenderCommand>(numRenderCommands);
for (int k = 0; k < numRenderCommands; k++)
{
RenderCommandType commandType = (RenderCommandType)reader.ReadUInt32();
switch (commandType)
{
case RenderCommandType.Line:
{
ComponentPoint start = reader.ReadComponentPoint();
ComponentPoint end = reader.ReadComponentPoint();
double thickness = reader.ReadDouble();
renderCommands.Add(new Line(start, end, thickness));
}
continue;
case RenderCommandType.Rect:
{
ComponentPoint location = reader.ReadComponentPoint();
double width = reader.ReadDouble();
double height = reader.ReadDouble();
double thickness = reader.ReadDouble();
bool fill = (reader.ReadUInt32() == 0 ? false : true);
renderCommands.Add(new Rectangle(location, width, height, thickness, fill));
}
continue;
case RenderCommandType.Ellipse:
{
ComponentPoint centre = reader.ReadComponentPoint();
double radiusX = reader.ReadDouble();
double radiusY = reader.ReadDouble();
double thickness = reader.ReadDouble();
bool fill = (reader.ReadUInt32() == 0 ? false : true);
renderCommands.Add(new Ellipse(centre, radiusX, radiusY, thickness, fill));
}
continue;
case RenderCommandType.Path:
{
ComponentPoint start = reader.ReadComponentPoint();
double thickness = reader.ReadDouble();
bool fill = (reader.ReadUInt32() == 0 ? false : true);
int numCommands = reader.ReadInt32();
List <IPathCommand> pathCommands = new List <IPathCommand>(numCommands);
for (int l = 0; l < numCommands; l++)
{
CommandType pType = (CommandType)reader.ReadInt32();
IPathCommand theCommand = null;
switch (pType)
{
case CommandType.MoveTo:
theCommand = new MoveTo();
break;
case CommandType.LineTo:
theCommand = new LineTo();
break;
case CommandType.CurveTo:
theCommand = new CurveTo();
break;
case CommandType.EllipticalArcTo:
theCommand = new EllipticalArcTo();
break;
case CommandType.QuadraticBeizerCurveTo:
theCommand = new QuadraticBeizerCurveTo();
break;
case CommandType.SmoothCurveTo:
theCommand = new SmoothCurveTo();
break;
case CommandType.SmoothQuadraticBeizerCurveTo:
theCommand = new SmoothQuadraticBeizerCurveTo();
break;
default:
theCommand = new ClosePath();
break;
}
theCommand.Read(reader);
pathCommands.Add(theCommand);
}
renderCommands.Add(new RenderPath(start, thickness, fill, pathCommands));
}
continue;
case RenderCommandType.Text:
{
byte formattedTextVersion = reader.ReadByte();
ComponentPoint location = reader.ReadComponentPoint();
TextAlignment alignment = (TextAlignment)reader.ReadUInt32();
uint numTextRuns = reader.ReadUInt32();
List <TextRun> textRuns = new List <TextRun>((int)numTextRuns);
for (uint l = 0; l < numTextRuns; l++)
{
TextRunFormattingType formattingType = (TextRunFormattingType)reader.ReadUInt32();
double runSize = reader.ReadDouble();
string runText = reader.ReadString();
textRuns.Add(new TextRun(runText, new TextRunFormatting(formattingType, runSize)));
}
renderCommands.Add(new Text(location, alignment, textRuns));
}
continue;
}
}
renderDescriptions.Add(new RenderDescription(conditions, renderCommands.ToArray()));
}
}
#endregion
#region Skip
else
{
// Unknown type - skip
reader.BaseStream.Seek(sectionLength, SeekOrigin.Current);
}
#endregion
}
ComponentDescription = new ComponentDescription(ID.ToString(), componentName, canResize, canFlip, minSize, properties.ToArray(), connections.ToArray(), renderDescriptions.ToArray(), flagOptions.ToArray(), descriptionMetadata);
if (iconResourceId.HasValue)
{
mainIconResource = iconResourceId.Value;
}
}
public static bool RenderFromXml(Stream xmlStream, IRenderContext renderContext, out Size imageSize)
{
XmlDocument doc = new XmlDocument();
doc.Load(xmlStream);
XmlNamespaceManager namespaceManager = new XmlNamespaceManager(doc.NameTable);
namespaceManager.AddNamespace("p", PreviewNamespace);
XmlNode previewNode = doc.SelectSingleNode("/p:preview", namespaceManager);
imageSize = new Size(double.Parse(previewNode.Attributes["width"].InnerText), double.Parse(previewNode.Attributes["height"].InnerText));
XmlNodeList renderNodes = previewNode.ChildNodes;
foreach (XmlNode renderNode in renderNodes)
{
XmlElement renderElement = renderNode as XmlElement;
if (renderElement == null)
{
continue;
}
if (renderElement.Name == "line")
{
Point start = Point.Parse(renderElement.Attributes["start"].InnerText);
Point end = Point.Parse(renderElement.Attributes["end"].InnerText);
double thickness = double.Parse(renderElement.Attributes["thickness"].InnerText);
renderContext.DrawLine(start, end, thickness);
}
else if (renderElement.Name == "rect")
{
Point start = Point.Parse(renderElement.Attributes["start"].InnerText);
Size size = Size.Parse(renderElement.Attributes["size"].InnerText);
double thickness = double.Parse(renderElement.Attributes["thickness"].InnerText);
bool fill = bool.Parse(renderElement.Attributes["fill"].InnerText);
renderContext.DrawRectangle(start, size, thickness, fill);
}
else if (renderElement.Name == "ellipse")
{
Point centre = Point.Parse(renderElement.Attributes["centre"].InnerText);
double radiusx = double.Parse(renderElement.Attributes["rx"].InnerText);
double radiusy = double.Parse(renderElement.Attributes["ry"].InnerText);
double thickness = double.Parse(renderElement.Attributes["thickness"].InnerText);
bool fill = bool.Parse(renderElement.Attributes["fill"].InnerText);
renderContext.DrawEllipse(centre, radiusx, radiusy, thickness, fill);
}
else if (renderElement.Name == "path")
{
Point start = Point.Parse(renderElement.Attributes["start"].InnerText);
double thickness = double.Parse(renderElement.Attributes["thickness"].InnerText);
bool fill = bool.Parse(renderElement.Attributes["fill"].InnerText);
string data = renderElement.InnerText;
List <IPathCommand> pathCommands = new List <IPathCommand>();
using (MemoryStream dataStream = new MemoryStream(Convert.FromBase64String(data)))
{
BinaryReader reader = new BinaryReader(dataStream);
int numCommands = reader.ReadInt32();
for (int l = 0; l < numCommands; l++)
{
CommandType pType = (CommandType)reader.ReadInt32();
IPathCommand theCommand = null;
switch (pType)
{
case CommandType.MoveTo:
theCommand = new MoveTo();
break;
case CommandType.LineTo:
theCommand = new LineTo();
break;
case CommandType.CurveTo:
theCommand = new CurveTo();
break;
case CommandType.EllipticalArcTo:
theCommand = new EllipticalArcTo();
break;
case CommandType.QuadraticBeizerCurveTo:
theCommand = new QuadraticBeizerCurveTo();
break;
case CommandType.SmoothCurveTo:
theCommand = new SmoothCurveTo();
break;
case CommandType.SmoothQuadraticBeizerCurveTo:
theCommand = new SmoothQuadraticBeizerCurveTo();
break;
default:
theCommand = new ClosePath();
break;
}
theCommand.Read(reader);
pathCommands.Add(theCommand);
}
}
renderContext.DrawPath(start, pathCommands, thickness, fill);
}
else if (renderElement.Name == "text")
{
Point anchor = Point.Parse(renderElement.Attributes["anchor"].InnerText);
TextAlignment alignment = (TextAlignment)Enum.Parse(typeof(TextAlignment), renderElement.Attributes["alignment"].InnerText);
List <TextRun> runs = new List <TextRun>();
foreach (XmlNode runNode in renderElement.ChildNodes)
{
if (runNode.Name != "run")
{
continue;
}
double size = double.Parse(runNode.Attributes["size"].InnerText);
TextRunFormattingType formattingType = (TextRunFormattingType)Enum.Parse(typeof(TextRunFormattingType), runNode.Attributes["formatting"].InnerText);
string text = runNode.InnerText;
runs.Add(new TextRun(text, new TextRunFormatting(formattingType, size)));
}
renderContext.DrawText(anchor, alignment, runs);
}
}
return(true);
}
public static bool RenderFromXml(Stream xmlStream, IDrawingContext drawingContext, out Size imageSize)
{
var doc = XDocument.Load(xmlStream);
var previewNode = doc.Elements().First(x => x.Name == PreviewNamespace + "preview");
imageSize = new Size(double.Parse(previewNode.Attribute("width").Value),
double.Parse(previewNode.Attribute("height").Value));
var renderElements = previewNode.Elements();
foreach (var renderElement in renderElements)
{
if (renderElement.Name == "line")
{
Point start = Point.Parse(renderElement.Attribute("start").Value);
Point end = Point.Parse(renderElement.Attribute("end").Value);
double thickness = double.Parse(renderElement.Attribute("thickness").Value);
drawingContext.DrawLine(start, end, thickness);
}
else if (renderElement.Name == "rect")
{
Point start = Point.Parse(renderElement.Attribute("start").Value);
Size size = Size.Parse(renderElement.Attribute("size").Value);
double thickness = double.Parse(renderElement.Attribute("thickness").Value);
bool fill = bool.Parse(renderElement.Attribute("fill").Value);
drawingContext.DrawRectangle(start, size, thickness, fill);
}
else if (renderElement.Name == "ellipse")
{
Point centre = Point.Parse(renderElement.Attribute("centre").Value);
double radiusx = double.Parse(renderElement.Attribute("rx").Value);
double radiusy = double.Parse(renderElement.Attribute("ry").Value);
double thickness = double.Parse(renderElement.Attribute("thickness").Value);
bool fill = bool.Parse(renderElement.Attribute("fill").Value);
drawingContext.DrawEllipse(centre, radiusx, radiusy, thickness, fill);
}
else if (renderElement.Name == "path")
{
Point start = Point.Parse(renderElement.Attribute("start").Value);
double thickness = double.Parse(renderElement.Attribute("thickness").Value);
bool fill = bool.Parse(renderElement.Attribute("fill").Value);
string data = renderElement.Value;
List <IPathCommand> pathCommands = new List <IPathCommand>();
using (MemoryStream dataStream = new MemoryStream(Convert.FromBase64String(data)))
{
BinaryReader reader = new BinaryReader(dataStream);
int numCommands = reader.ReadInt32();
for (int l = 0; l < numCommands; l++)
{
CommandType pType = (CommandType)reader.ReadInt32();
IPathCommand theCommand = null;
switch (pType)
{
case CommandType.MoveTo:
theCommand = new MoveTo();
break;
case CommandType.LineTo:
theCommand = new LineTo();
break;
case CommandType.CurveTo:
theCommand = new CurveTo();
break;
case CommandType.EllipticalArcTo:
theCommand = new EllipticalArcTo();
break;
case CommandType.QuadraticBeizerCurveTo:
theCommand = new QuadraticBeizerCurveTo();
break;
case CommandType.SmoothCurveTo:
theCommand = new SmoothCurveTo();
break;
case CommandType.SmoothQuadraticBeizerCurveTo:
theCommand = new SmoothQuadraticBeizerCurveTo();
break;
default:
theCommand = new ClosePath();
break;
}
theCommand.Read(reader);
pathCommands.Add(theCommand);
}
}
drawingContext.DrawPath(start, pathCommands, thickness, fill);
}
else if (renderElement.Name == "text")
{
Point anchor = Point.Parse(renderElement.Attribute("anchor").Value);
TextAlignment alignment = (TextAlignment)Enum.Parse(typeof(TextAlignment), renderElement.Attribute("alignment").Value);
List <TextRun> runs = new List <TextRun>();
foreach (var runNode in renderElement.Elements())
{
if (runNode.Name != "run")
{
continue;
}
double size = double.Parse(runNode.Attribute("size").Value);
TextRunFormattingType formattingType = (TextRunFormattingType)Enum.Parse(typeof(TextRunFormattingType), runNode.Attribute("formatting").Value);
string text = runNode.Value;
runs.Add(new TextRun(text, new TextRunFormatting(formattingType, size)));
}
drawingContext.DrawText(anchor, alignment, runs);
}
}
return(true);
}
