Esempio n. 1
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        /// <summary>
        /// Create a complete deep copy of the given tree of <c>SvgElement</c> objects.
        /// A new set of elements is created, and if the attributes are cloneable they are deep-copied too.
        /// Since strings and all SvgType classes are cloneable, the new tree is independant of the old.
        /// </summary>
        /// <param name="el"></param>
        /// <returns></returns>
        public static SvgElement CloneElement(SvgElement el)
        {
            SvgElement clone = (SvgElement)el.GetType().GetConstructor(new System.Type[0]).Invoke(new object[0]);

            foreach(string key in el.Attributes.Keys)
            {
                object o = el[key];
                if (typeof(ICloneable).IsInstanceOfType(o))
                    clone[key] = ((ICloneable)o).Clone();
                else
                    clone[key] = o;
            }

            foreach(SvgElement ch in el.Children)
            {
                clone.AddChild(CloneElement(ch));
            }

            return clone;
        }
Esempio n. 2
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        /// <summary>
        /// Used by LoadFromXML
        /// </summary>
        /// <param name="e"></param>
        /// <param name="doc"></param>
        /// <param name="el"></param>
        private static void RecLoadFromXML(SvgElement e, XmlDocument doc, XmlElement el)
        {
            e.ReadXmlElement(doc, el);

            foreach(XmlNode noddo in el.ChildNodes)
            {
                if (noddo.GetType() == typeof(XmlElement))
                {
                    XmlElement childXml = (XmlElement)noddo;

                    Type t = (Type)_elementNameDictionary[childXml.Name];

                    SvgElement childSvg=null;

                    if (t == null)
                    {
                        childSvg = new SvgGenericElement(childXml.Name);
                    }
                    else
                    {
                        childSvg = (SvgElement)t.GetConstructor(new System.Type[0]).Invoke(new object[0]);
                    }

                    e.AddChild(childSvg);

                    RecLoadFromXML(childSvg, doc, childXml);
                }
                else if (noddo.GetType() == typeof(XmlText))
                {
                    XmlText xt = (XmlText)noddo;

                    TextNode tn = new TextNode(xt.InnerText);

                    e.AddChild(tn);
                }
            }
        }
Esempio n. 3
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        /// <summary>
        /// Adds a child, and sets the child's parent to this element.
        /// </summary>
        /// <param name="ch"></param>
        public virtual void AddChild(SvgElement ch)
        {
            if (ch.Parent != null)
            {
                throw new SvgException("Child already has a parent", ch.ToString());
            }

            _children.Add(ch);
            ch._parent = this;
        }
Esempio n. 4
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 /// <summary>
 /// Adds a child, and sets the child's parent to this element.
 /// </summary>
 /// <param name="ch"></param>
 public override void AddChild(SvgElement ch)
 {
     throw new SvgException("A TextNode cannot have children");
 }
Esempio n. 5
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        private void button1_Click(object sender, System.EventArgs e)
        {
            OpenFileDialog dlg = new OpenFileDialog();
            if (dlg.ShowDialog() == DialogResult.OK)
            {
                string fname = dlg.FileName;
                StreamReader str = File.OpenText(dlg.FileName);
                tbIn.Text = str.ReadToEnd();

                XmlDocument doc = new XmlDocument();

                doc.Load(fname);

                svgIn.SRC = fname;

                _e = SvgFactory.LoadFromXML(doc, null);

                string output = _e.WriteSVGString(true);

                tbOut.Text = output;

                StreamWriter tw = new StreamWriter("c:\\temp\\foo.svg", false);

                tw.Write(output);

                tw.Close();

                svgOut.SRC = "c:\\temp\\foo.svg";
            }
        }
Esempio n. 6
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 /// <summary>
 /// Adds a child, and sets the child's parent to this element.
 /// </summary>
 /// <param name="ch"></param>
 public override void AddChild(SvgElement ch)
 {
     throw new SvgException("A TextNode cannot have children");
 }
Esempio n. 7
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        Figure SvgElementToFigure(SvgElement e)
        {
            Figure f = null;

            if (e is SvgRectElement || e is SvgImageElement)
            {
                if (e.Attributes.ContainsKey("x") && e.Attributes.ContainsKey("y") &&
                    e.Attributes.ContainsKey("width") && e.Attributes.ContainsKey("height"))
                {
                    SvgLength X = new SvgLength((string)e.Attributes["x"]);
                    SvgLength Y = new SvgLength((string)e.Attributes["y"]);
                    SvgLength Width = new SvgLength((string)e.Attributes["width"]);
                    SvgLength Height = new SvgLength((string)e.Attributes["height"]);
                    DRect r = new DRect(X.Value, Y.Value, Width.Value, Height.Value);
                    if (e is SvgRectElement)
                        f = new RectFigure(r, 0);
                    else if (e is SvgImageElement)
                    {
                        SvgImageElement e2 = (SvgImageElement)e;
                        byte[] imgData = Read(e2.Href);
                        if (imgData != null)
                            f = new BitmapFigure(r, 0, imgData, Path.GetFileName(e2.Href));
                    }
                }
            }
            else if (e is SvgEllipseElement)
            {
                SvgEllipseElement e2 = (SvgEllipseElement)e;
                if (e2.Attributes.ContainsKey("cx") && e2.Attributes.ContainsKey("cy") &&
                     e2.Attributes.ContainsKey("rx") && e2.Attributes.ContainsKey("ry"))
                {
                    e2.CX = new SvgLength((string)e2.Attributes["cx"]);
                    e2.CY = new SvgLength((string)e2.Attributes["cy"]);
                    e2.RX = new SvgLength((string)e2.Attributes["rx"]);
                    e2.RY = new SvgLength((string)e2.Attributes["ry"]);
                    f = new EllipseFigure(new DRect(e2.CX.Value - e2.RX.Value, e2.CY.Value - e2.RY.Value,
                        e2.RX.Value * 2, e2.RY.Value * 2), 0);
                }
            }
            else if (e is SvgPathElement)
            {
                SvgPathElement e2 = (SvgPathElement)e;
                if (e2.Attributes.ContainsKey("d"))
                {
                    e2.D = new SvgPath((string)e2.Attributes["d"]);
                    // treat all paths as polygons for the moment
                    DPoints pts = new DPoints();
                    for (int i = 0; i < e2.D.Count; i++)
                    {
                        PathSeg s = e2.D[i];
                        if ((s.Type == SvgPathSegType.SVG_SEGTYPE_MOVETO || s.Type == SvgPathSegType.SVG_SEGTYPE_LINETO) &&
                            s.Abs)
                            pts.Add(new DPoint(s.Data[0], s.Data[1]));
                    }
                    if (pts.Count >= 3)
                    {
                        DRect r = pts.Bounds();
                        foreach (DPoint pt in pts)
                        {
                            pt.X = (pt.X - r.Left) / r.Width;
                            pt.Y = (pt.Y - r.Top) / r.Height;
                        }
                        f = new PolygonFigure(pts);
                        f.Rect = r;
                    }
                }
            }
            else if (e is SvgPolylineElement)
            {
                SvgPolylineElement e2 = (SvgPolylineElement)e;
                if (e2.Attributes.ContainsKey("points"))
                    f = new PolylineFigure(DPoints.FromString((string)e2.Attributes["points"]));
            }
            else if (e is SvgLineElement)
            {
                SvgLineElement e2 = (SvgLineElement)e;
                if (e2.Attributes.ContainsKey("x1") && e2.Attributes.ContainsKey("y1") &&
                     e2.Attributes.ContainsKey("x2") && e2.Attributes.ContainsKey("y2"))
                {
                    e2.X1 = new SvgLength((string)e2.Attributes["x1"]);
                    e2.Y1 = new SvgLength((string)e2.Attributes["y1"]);
                    e2.X2 = new SvgLength((string)e2.Attributes["x2"]);
                    e2.Y2 = new SvgLength((string)e2.Attributes["y2"]);

                    f = new LineFigure2(new DPoint(e2.X1.Value, e2.Y1.Value),
                                            new DPoint(e2.X2.Value, e2.Y2.Value));
                }
            }
            else if (e is SvgGroupElement)
            {
                SvgGroupElement e2 = (SvgGroupElement)e;
                f = new GroupFigure();
                GroupFigure gf = (GroupFigure)f;
                foreach (SvgElement childEle in e2.Children)
                {
                    Figure childFig = SvgElementToFigure(childEle);
                    if (childFig != null)
                        gf.ChildFigures.Add(childFig);
                }
                if (gf.ChildFigures.Count > 0)
                    gf.ChildFigures = gf.ChildFigures;
                else
                    f = null;
            }
            else if (e is SvgTextElement)
            {
                double fontSize;
                string fontFamily;
                DColor fill;
                bool bold, italic, underline;
                string text = ExtractText(e, 0, out fontSize, out fontFamily, out fill, out bold, out italic, out underline);
                while (text.EndsWith("\n"))
                    text = text.Substring(0, text.Length - 1);
                if (text != null)
                {
                    DPoint translation = GetSvgElementTranslation((SvgTextElement)e);
                    f = new TextFigure(translation, text, 0);
                    ((TextFigure)f).FontSize = fontSize;
                    ((TextFigure)f).FontName = fontFamily;
                    ((TextFigure)f).Fill = fill;
                    ((TextFigure)f).Bold = bold;
                    ((TextFigure)f).Italics = italic;
                    ((TextFigure)f).Underline = underline;
                    // set wrap threshold
                    const double editWidthMod = 1.435;
                    if (((SvgTextElement)e).Attributes.ContainsKey(NBTextEditWidth))
                    {
                        string editwidth = (string)((SvgTextElement)e).Attributes[NBTextEditWidth];
                        if (editwidth != null && editwidth.Length != 0)
                        {
                            ((TextFigure)f).WrapThreshold = double.Parse(editwidth) * editWidthMod;
                            ((TextFigure)f).WrapFontSize = ((TextFigure)f).FontSize;
                            ((TextFigure)f).WrapText = true;
                        }
                    }
                    // scale
                    DPoint scale = GetSvgElementScale((SvgTextElement)e);
                    const double scaleMod = 0.694;
                    f.Width *= scale.X * scaleMod;
                    f.Height *= scale.Y * scaleMod;
                }
            }

            if (f != null)
            {
                if (e is SvgStyledTransformedElement)
                    f.Rotation = GetSvgElementRotation((SvgStyledTransformedElement)e);
                if (f is IFillable && e.Attributes.ContainsKey("fill"))
                    ((IFillable)f).Fill = DColor.FromHtml((string)e.Attributes["fill"]);
                if (f is IStrokeable)
                {
                    if (e.Attributes.ContainsKey("stroke"))
                        ((IStrokeable)f).Stroke = DColor.FromHtml((string)e.Attributes["stroke"]);
                    if (e.Attributes.ContainsKey("stroke-width"))
                        ((IStrokeable)f).StrokeWidth = double.Parse((string)e.Attributes["stroke-width"]);
                    if (e.Attributes.ContainsKey("stroke-dasharray"))
                        ((IStrokeable)f).StrokeStyle = NotebookDashArrayToStrokeStyle((string)e.Attributes["stroke-dasharray"]);
                }
                if (f is IMarkable)
                {
                    if (e.Attributes.ContainsKey("marker-start"))
                        ((IMarkable)f).StartMarker = NotebookMarkerToDMarker((string)e.Attributes["marker-start"]);
                    if (e.Attributes.ContainsKey("marker-end"))
                        ((IMarkable)f).EndMarker = NotebookMarkerToDMarker((string)e.Attributes["marker-end"]);
                }
                if (f is IAlphaBlendable && e.Attributes.ContainsKey("opacity"))
                    ((IAlphaBlendable)f).Alpha = double.Parse((string)e.Attributes["opacity"]);

                applyLink(f, e);
                applyLock(f, e);
            }

            return f;
        }
Esempio n. 8
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 string ExtractText(SvgElement e, int level, out double fontSize, out string fontFamily, out DColor fill, out bool bold, out bool italic, out bool underline)
 {
     string text;
     text = "";
     fontSize = 12;
     fontFamily = "Arial";
     fill = DColor.Black;
     bold = false;
     italic = false;
     underline = false;
     if ((e is SvgTextElement || e is SvgTspanElement) && e.Children.Count == 1 && e.Children[0] is TextNode)
     {
         text = ((TextNode)e.Children[0]).Text;
         if (e.Attributes.ContainsKey(NBFontSizeAttr))
             fontSize = double.Parse((string)e.Attributes[NBFontSizeAttr]);
         if (e.Attributes.ContainsKey(NBFontFamilyAttr))
             fontFamily = (string)e.Attributes[NBFontFamilyAttr];
         if (e.Attributes.ContainsKey(NBFillAttr))
             fill = DColor.FromHtml((string)e.Attributes[NBFillAttr]);
         if (e.Attributes.ContainsKey(NBFontWeightAttr))
             bold = NotebookFontWeightToBold((string)e.Attributes[NBFontWeightAttr]);
         if (e.Attributes.ContainsKey(NBFontStyleAttr))
             italic = NotebookFontStyleToItalic((string)e.Attributes[NBFontStyleAttr]);
         if (e.Attributes.ContainsKey(NBTextDecorationAttr))
             underline = NotebookTextDecorationToUnderline((string)e.Attributes[NBTextDecorationAttr]);
     }
     else
     {
         foreach (SvgElement child in e.Children)
         {
             string childText = ExtractText(child, level + 1, out fontSize, out fontFamily, out fill, out bold, out italic, out underline);
             if (childText != null)
                 text += childText;
         }
     }
     if (level == 1)
         text += "\n";
     return text;
 }
Esempio n. 9
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 void applyLock(Figure f, SvgElement e)
 {
     f.Locked = e.Attributes.ContainsKey(NBLockedAttr);
 }
Esempio n. 10
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 void applyLink(Figure f, SvgElement e)
 {
     if (e.Attributes.ContainsKey(NBLinkShortCutAttr))
     {
         string shortcut = (string)e.Attributes[NBLinkShortCutAttr];
         if (shortcut.StartsWith(NBLinkHttpPrefix))
         {
             f.UserAttrs[Links.LinkType] = LinkType.WebPage.ToString();
             f.UserAttrs[Links.Link] = shortcut;
         }
         else if (shortcut.StartsWith(NBLinkPagePrefix))
         {
             f.UserAttrs[Links.LinkType] = LinkType.Page.ToString();
             f.UserAttrs[Links.Link] = GetPageNumberFromPageName(shortcut.Substring(NBLinkPagePrefix.Length)).ToString();
         }
         else if (shortcut == NBLinkFirstPage)
         {
             f.UserAttrs[Links.LinkType] = LinkType.Page.ToString();
             f.UserAttrs[Links.Link] = LinkPage.First.ToString();
         }
         else if (shortcut == NBLinkLastPage)
         {
             f.UserAttrs[Links.LinkType] = LinkType.Page.ToString();
             f.UserAttrs[Links.Link] = LinkPage.Last.ToString();
         }
         else if (shortcut == NBLinkNextPage)
         {
             f.UserAttrs[Links.LinkType] = LinkType.Page.ToString();
             f.UserAttrs[Links.Link] = LinkPage.Next.ToString();
         }
         else if (shortcut == NBLinkPreviousPage)
         {
             f.UserAttrs[Links.LinkType] = LinkType.Page.ToString();
             f.UserAttrs[Links.Link] = LinkPage.Previous.ToString();
         }
         else if (shortcut.StartsWith(NBLinkAttachmentPrefix))
         {
             f.UserAttrs[Links.LinkType] = LinkType.Attachment.ToString();
             f.UserAttrs[Links.Link] = shortcut.Substring(NBLinkAttachmentPrefix.Length);
         }
         else if (shortcut.StartsWith(NBLinkFilePrefix))
         {
             f.UserAttrs[Links.LinkType] = LinkType.File.ToString();
             f.UserAttrs[Links.Link] = shortcut.Substring(NBLinkFilePrefix.Length);
         }
         // link body?
         if (e.Attributes.ContainsKey(NBLinkShortCutAreaAttr) && (string)e.Attributes[NBLinkShortCutAreaAttr] == "1")
             f.UserAttrs[Links.LinkBody] = "";
     }
 }
Esempio n. 11
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        private void button1_Click(object sender, System.EventArgs e)
        {
            OpenFileDialog dlg = new OpenFileDialog();
            if (dlg.ShowDialog() == DialogResult.OK)
            {
                string fname = dlg.FileName;
                StreamReader str = File.OpenText(dlg.FileName);
                tbIn.Text = str.ReadToEnd();

                XmlDocument doc = new XmlDocument();

                doc.Load(fname);

                svgIn.Navigate(new Uri(fname));
                svgIn.Refresh(WebBrowserRefreshOption.Completely);

                _e = SvgFactory.LoadFromXML(doc, null);

                string output = _e.WriteSVGString(true);

                tbOut.Text = output;

                string tempFile = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "foo.svg");

                StreamWriter tw = new StreamWriter(tempFile, false);

                tw.Write(output);

                tw.Close();

                svgOut.Navigate(new Uri(tempFile));
                svgOut.Refresh(WebBrowserRefreshOption.Completely);
            }
        }