public EllipseShape(SVG svg, XmlNode node) : base(svg, node)
{
CX = XmlUtil.AttrValue(node, "cx", 0);
CY = XmlUtil.AttrValue(node, "cy", 0);
RX = XmlUtil.AttrValue(node, "rx", 0);
RY = XmlUtil.AttrValue(node, "ry", 0);
}
protected virtual void Parse(SVG svg, ShapeUtil.Attribute attr)
{
string name = attr.Name;
string value = attr.Value;
Parse(svg, name, value);
}
public Stroke(SVG svg)
{
Color = new SolidColor(svg.PaintServers, Colors.Black);
Width = 1;
LineCap = eLineCap.butt;
LineJoin = eLineJoin.miter;
Opacity = 100;
}
public Brush FillBrush(SVG svg)
{
if (Color != null)
{
return(Color.GetBrush(Opacity, svg));
}
return(null);
}
protected Fill GetFill(SVG svg)
{
if (m_fill == null)
{
m_fill = new Fill(svg);
}
return(m_fill);
}
protected TextStyle GetTextStyle(SVG svg)
{
if (m_textstyle == null)
{
m_textstyle = new TextStyle(svg, this);
}
return(m_textstyle);
}
public override Brush GetBrush(double opacity, SVG svg)
{
byte a = (byte)(255 * opacity / 100);
Color c = Color;
Color newcol = System.Windows.Media.Color.FromArgb(a, c.R, c.G, c.B);
return(new SolidColorBrush(newcol));
}
Stroke GetStroke(SVG svg)
{
if (m_stroke == null)
{
m_stroke = new Stroke(svg);
}
return(m_stroke);
}
public static Element Parse(SVG svg, string text, TextShape owner)
{
int curpos = 0;
Element root = new Element(svg, owner, Element.eElementType.Tag, null);
root.Text = "<root>";
root.StartIndex = 0;
return(Parse(svg, text, ref curpos, null, root));
}
public LineShape(SVG svg, XmlNode node) : base(svg, node)
{
double x1 = XmlUtil.AttrValue(node, "x1", 0);
double y1 = XmlUtil.AttrValue(node, "y1", 0);
double x2 = XmlUtil.AttrValue(node, "x2", 0);
double y2 = XmlUtil.AttrValue(node, "y2", 0);
P1 = new Point(x1, y1);
P2 = new Point(x2, y2);
}
public UseShape(SVG svg, XmlNode node) : base(svg, node)
{
X = XmlUtil.AttrValue(node, "x", 0);
Y = XmlUtil.AttrValue(node, "y", 0);
hRef = XmlUtil.AttrValue(node, "xlink:href", string.Empty);
if (hRef.StartsWith("#"))
{
hRef = hRef.Substring(1);
}
}
TSpan.Element ParseTSpan(SVG svg, string tspanText)
{
try
{
return(TSpan.Parse(svg, tspanText, this));
}
catch
{
return(null);
}
}
public static double ParseDouble(SVG svg, string svalue)
{
string units = string.Empty;
double value = 0d;
if (SplitValueUnits(svalue, out value, out units))
{
return(value);
}
return(0.1);
}
public Shape(SVG svg, XmlNode node, Shape parent) : base(node)
{
Parent = parent;
if (node != null)
{
foreach (XmlAttribute attr in node.Attributes)
{
Parse(svg, attr);
}
}
}
public Shape(SVG svg, List <ShapeUtil.Attribute> attrs, Shape parent) : base(null)
{
Parent = parent;
if (attrs != null)
{
foreach (ShapeUtil.Attribute attr in attrs)
{
Parse(svg, attr);
}
}
}
public void Populate(SVG data)
{
this.Items.Clear();
foreach (Shape shape in data.Elements)
{
TreeViewItem root = new TreeViewItem();
root.Header = "root";
this.Items.Add(root);
AddShape(shape, root);
//this.Items.Add(AddShape(shape, root));
}
}
public PolylineShape(SVG svg, XmlNode node) : base(svg, node)
{
string points = XmlUtil.AttrValue(node, SVGTags.sPoints, string.Empty);
ShapeUtil.StringSplitter split = new ShapeUtil.StringSplitter(points);
List <Point> list = new List <Point>();
while (split.More)
{
list.Add(split.ReadNextPoint());
}
Points = list.ToArray();
}
static Element Parse(SVG svg, string text, ref int curPos, Element parent, Element curTag)
{
Element tag = curTag;
if (tag == null)
{
tag = NextTag(svg, parent, text, ref curPos);
}
while (curPos < text.Length)
{
int prevPos = curPos;
Element next = NextTag(svg, tag, text, ref curPos);
if (next == null && curPos < text.Length)
{
// remaining pure text
string s = text.Substring(curPos, text.Length - curPos);
tag.Children.Add(new Element(tag, s));
return(tag);
}
if (next != null && next.StartIndex - prevPos > 0)
{
// pure text between tspan elements
int diff = next.StartIndex - prevPos;
string s = text.Substring(prevPos, diff);
tag.Children.Add(new Element(tag, s));
}
if (next.Text.StartsWith("<tspan"))
{
// new nested element
next = Parse(svg, text, ref curPos, tag, next);
tag.Children.Add(next);
continue;
}
if (next.Text.StartsWith("</tspan"))
{
// end of cur element
tag.End = next;
return(tag);
}
if (next.Text.StartsWith("<textPath"))
{
continue;
}
if (next.Text.StartsWith("</textPath"))
{
continue;
}
throw new Exception(string.Format("unexpected tag '{0}'", next.Text));
}
return(tag);
}
public RectangleShape(SVG svg, XmlNode node) : base(svg, node)
{
X = XmlUtil.AttrValue(node, "x", 0);
Y = XmlUtil.AttrValue(node, "y", 0);
Width = XmlUtil.AttrValue(node, "width", 0);
Height = XmlUtil.AttrValue(node, "height", 0);
RX = XmlUtil.AttrValue(node, "rx", 0);
RY = XmlUtil.AttrValue(node, "ry", 0);
if (DefaultFill == null)
{
DefaultFill = new Fill(svg);
DefaultFill.Color = svg.PaintServers.Parse("black");
}
}
public TextStyle(SVG svg, Shape owner)
{
FontFamily = "Arial Unicode MS, Verdana";
FontSize = 12;
Fontweight = FontWeights.Normal;
Fontstyle = FontStyles.Normal;
TextAlignment = System.Windows.TextAlignment.Left;
WordSpacing = 0;
LetterSpacing = 0;
BaseLineShift = string.Empty;
if (owner.Parent != null)
{
Copy(owner.Parent.TextStyle);
}
}
static Element NextTag(SVG svg, Element parent, string text, ref int curPos)
{
int start = text.IndexOf("<", curPos);
if (start < 0)
{
return(null);
}
int end = text.IndexOf(">", start + 1);
if (end < 0)
{
throw new Exception("Start '<' with no end '>'");
}
end++;
string tagtext = text.Substring(start, end - start);
if (tagtext.IndexOf("<", 1) > 0)
{
throw new Exception(string.Format("Start '<' within tag 'tag'"));
}
List <ShapeUtil.Attribute> attrs = new List <ShapeUtil.Attribute>();
int attrstart = tagtext.IndexOf("tspan");
if (attrstart > 0)
{
attrstart += 5;
while (attrstart < tagtext.Length - 1)
{
attrs.Add(ShapeUtil.ReadNextAttr(tagtext, ref attrstart));
}
}
Element tag = new Element(svg, parent, Element.eElementType.Tag, attrs);
tag.StartIndex = start;
tag.Text = text.Substring(start, end - start);
if (tag.Text.IndexOf("<", 1) > 0)
{
throw new Exception(string.Format("Start '<' within tag 'tag'"));
}
curPos = end;
return(tag);
}
public override Brush GetBrush(double opacity, SVG svg)
{
RadialGradientBrush b = new RadialGradientBrush();
foreach (GradientStop stop in Stops)
{
b.GradientStops.Add(stop);
}
b.GradientOrigin = new System.Windows.Point(0.5, 0.5);
b.Center = new System.Windows.Point(0.5, 0.5);
b.RadiusX = 0.5;
b.RadiusY = 0.5;
if (GradientUnits == SVGTags.sGradientUserSpace)
{
b.Center = new System.Windows.Point(CX, CY);
b.GradientOrigin = new System.Windows.Point(FX, FY);
b.RadiusX = R;
b.RadiusY = R;
b.MappingMode = BrushMappingMode.Absolute;
}
else
{
double scale = 1d / 100d;
if (double.IsNaN(CX) == false && double.IsNaN(CY) == false)
{
b.GradientOrigin = new System.Windows.Point(CX * scale, CY * scale);
b.Center = new System.Windows.Point(CX * scale, CY * scale);
}
if (double.IsNaN(FX) == false && double.IsNaN(FY) == false)
{
b.GradientOrigin = new System.Windows.Point(FX * scale, FY * scale);
}
if (double.IsNaN(R) == false)
{
b.RadiusX = R * scale;
b.RadiusY = R * scale;
}
b.MappingMode = BrushMappingMode.RelativeToBoundingBox;
}
if (Transform != null)
{
b.Transform = Transform;
}
return(b);
}
public Group(SVG svg, XmlNode node, Shape parent) : base(svg, node)
{
// parent on group must be set before children are added
this.Parent = parent;
foreach (XmlNode childnode in node.ChildNodes)
{
Shape shape = AddToList(svg, m_elements, childnode, this);
if (shape != null)
{
shape.Parent = this;
}
}
if (Id.Length > 0)
{
svg.AddShape(Id, this);
}
}
public override Brush GetBrush(double opacity, SVG svg)
{
LinearGradientBrush b = new LinearGradientBrush();
foreach (GradientStop stop in Stops)
{
b.GradientStops.Add(stop);
}
b.MappingMode = BrushMappingMode.RelativeToBoundingBox;
b.StartPoint = new System.Windows.Point(0, 0);
b.EndPoint = new System.Windows.Point(1, 0);
if (GradientUnits == SVGTags.sGradientUserSpace)
{
Transform tr = Transform as Transform;
if (tr != null)
{
b.StartPoint = tr.Transform(new System.Windows.Point(X1, Y1));
b.EndPoint = tr.Transform(new System.Windows.Point(X2, Y2));
}
else
{
b.StartPoint = new System.Windows.Point(X1, Y1);
b.EndPoint = new System.Windows.Point(X2, Y2);
}
Transform = null;
b.MappingMode = BrushMappingMode.Absolute;
}
else
{
Normalize();
if (double.IsNaN(X1) == false)
{
b.StartPoint = new System.Windows.Point(X1, Y1);
}
if (double.IsNaN(X2) == false)
{
b.EndPoint = new System.Windows.Point(X2, Y2);
}
}
return(b);
}
static void ReadDefs(SVG svg, List <Shape> list, XmlNode node)
{
list = new List <Shape>(); // temp list, not needed.
//ShapeGroups defined in the 'def' section is added the the 'Shapes' dictionary in SVG for later reference
foreach (XmlNode childnode in node.ChildNodes)
{
if (childnode.Name == SVGTags.sLinearGradient)
{
svg.PaintServers.Create(childnode);
continue;
}
if (childnode.Name == SVGTags.sRadialGradient)
{
svg.PaintServers.Create(childnode);
continue;
}
Group.AddToList(svg, list, childnode, null);
}
}
public PolygonShape(SVG svg, XmlNode node) : base(svg, node)
{
if (DefaultFill == null)
{
DefaultFill = new Fill(svg);
DefaultFill.Color = svg.PaintServers.Parse("black");
}
string points = XmlUtil.AttrValue(node, SVGTags.sPoints, string.Empty);
ShapeUtil.StringSplitter split = new ShapeUtil.StringSplitter(points);
List <Point> list = new List <Point>();
while (split.More)
{
list.Add(split.ReadNextPoint());
}
Points = list.ToArray();
}
public ImageShape(SVG svg, XmlNode node) : base(svg, node)
{
X = XmlUtil.AttrValue(node, "x", 0);
Y = XmlUtil.AttrValue(node, "y", 0);
Width = XmlUtil.AttrValue(node, "width", 0);
Height = XmlUtil.AttrValue(node, "height", 0);
string hRef = XmlUtil.AttrValue(node, "xlink:href", string.Empty);
if (hRef.Length > 0)
{
// filename given must be relative to the location of the svg file
string svgpath = System.IO.Path.GetDirectoryName(svg.Filename);
string filename = System.IO.Path.Combine(svgpath, hRef);
BitmapImage b = new BitmapImage();
b.BeginInit();
b.UriSource = new Uri(filename, UriKind.RelativeOrAbsolute);
b.EndInit();
ImageSource = b;
}
}
public static List <ShapeUtil.Attribute> SplitStyle(SVG svg, string fullstyle)
{
List <ShapeUtil.Attribute> list = new List <ShapeUtil.Attribute>();
if (fullstyle.Length == 0)
{
return(list);
}
// style contains attributes in format of "attrname:value;attrname:value"
string[] attrs = fullstyle.Split(';');
foreach (string attr in attrs)
{
string[] s = attr.Split(':');
if (s.Length != 2)
{
continue;
}
list.Add(new ShapeUtil.Attribute(s[0].Trim(), s[1].Trim()));
}
return(list);
}
public TextShape(SVG svg, XmlNode node, Shape parent) : base(svg, node, parent)
{
X = XmlUtil.AttrValue(node, "x", 0);
Y = XmlUtil.AttrValue(node, "y", 0);
Text = node.InnerText;
GetTextStyle(svg);
// check for tSpan tag
if (node.InnerXml.IndexOf("<") >= 0)
{
TextSpan = ParseTSpan(svg, node.InnerXml);
}
if (DefaultFill == null)
{
DefaultFill = new Fill(svg);
DefaultFill.Color = svg.PaintServers.Parse("black");
}
if (DefaultStroke == null)
{
DefaultStroke = new Stroke(svg);
DefaultStroke.Width = 0.1;
}
}
// 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));
}
}