示例#1
0
		public virtual void EndVisit (Group group)
		{
			EndVisitElement (group);
		}
示例#2
0
        void AddElement(IList <Element> list, XElement e, Pen inheritPen, Brush inheritBrush)
        {
            //
            // Style
            //
            Element r = null;

            GetPenAndBrush(e, inheritPen, inheritBrush, out var pen, out var brush);
            //var id = ReadString (e.Attribute ("id"));

            //
            // Elements
            //
            switch (e.Name.LocalName)
            {
            case "text":
            {
                var x          = ReadNumber(e.Attribute("x"));
                var y          = ReadNumber(e.Attribute("y"));
                var font       = new Font();
                var fontFamily = ReadTextFontFamily(e);
                if (!string.IsNullOrEmpty(fontFamily))
                {
                    font.Family = fontFamily;
                }
                var fontSize = ReadTextFontSize(e);
                if (fontSize >= 0)
                {
                    font.Size = fontSize;
                }
                TextAlignment textAlignment = ReadTextAlignment(e);
                var           txt           = new Text(new Rect(new Point(x, y), new Size(double.MaxValue, double.MaxValue)), font, textAlignment, pen, brush);
                ReadTextSpans(txt, e, pen, brush);
                r = txt;
            }
            break;

            case "rect":
            {
                var x      = ReadNumber(e.Attribute("x"));
                var y      = ReadNumber(e.Attribute("y"));
                var width  = ReadNumber(e.Attribute("width"));
                var height = ReadNumber(e.Attribute("height"));
                var rx     = ReadNumber(e.Attribute("rx"));
                var ry     = ReadNumber(e.Attribute("ry"));
                if (ry == 0)
                {
                    ry = rx;
                }
                r = new Rectangle(new Rect(new Point(x, y), new Size(width, height)), new Size(rx, ry), pen, brush);
            }
            break;

            case "ellipse":
            {
                var cx = ReadNumber(e.Attribute("cx"));
                var cy = ReadNumber(e.Attribute("cy"));
                var rx = ReadNumber(e.Attribute("rx"));
                var ry = ReadNumber(e.Attribute("ry"));
                r = new Ellipse(new Point(cx - rx, cy - ry), new Size(2 * rx, 2 * ry), pen, brush);
            }
            break;

            case "circle":
            {
                var cx = ReadNumber(e.Attribute("cx"));
                var cy = ReadNumber(e.Attribute("cy"));
                var rr = ReadNumber(e.Attribute("r"));
                r = new Ellipse(new Point(cx - rr, cy - rr), new Size(2 * rr, 2 * rr), pen, brush);
            }
            break;

            case "path":
            {
                var dA = e.Attribute("d");
                if (dA != null && !string.IsNullOrWhiteSpace(dA.Value))
                {
                    var p = new Path(pen, brush);
                    ReadPath(p, dA.Value);
                    r = p;
                }
            }
            break;

            case "polygon":
            {
                var pA = e.Attribute("points");
                if (pA != null && !string.IsNullOrWhiteSpace(pA.Value))
                {
                    var path = new Path(pen, brush);
                    ReadPoints(path, pA.Value, true);
                    r = path;
                }
            }
            break;

            case "polyline":
            {
                var pA = e.Attribute("points");
                if (pA != null && !string.IsNullOrWhiteSpace(pA.Value))
                {
                    var path = new Path(pen, brush);
                    ReadPoints(path, pA.Value, false);
                    r = path;
                }
            }
            break;

            case "g":
            {
                var g       = new Group();
                var groupId = e.Attribute("id");
                if (groupId != null && !string.IsNullOrEmpty(groupId.Value))
                {
                    g.Id = groupId.Value;
                }

                var groupOpacity = e.Attribute("opacity");
                if (groupOpacity != null && !string.IsNullOrEmpty(groupOpacity.Value))
                {
                    g.Opacity = ReadNumber(groupOpacity);
                }

                AddElements(g.Children, e.Elements(), pen, brush);

                r = g;
            }
            break;

            case "use":
            {
                var href = ReadString(e.Attributes().FirstOrDefault(x => x.Name.LocalName == "href"));
                if (!string.IsNullOrWhiteSpace(href))
                {
                    XElement useE;
                    if (defs.TryGetValue(href.Trim().Replace("#", ""), out useE))
                    {
                        var useList = new List <Element> ();
                        AddElement(useList, useE, pen, brush);
                        r = useList.FirstOrDefault();
                    }
                }
            }
            break;

            case "title":
                Graphic.Title = ReadString(e);
                break;

            case "desc":
            case "description":
                Graphic.Description = ReadString(e);
                break;

            case "defs":
                // Already read in earlier pass
                break;

            case "namedview":
            case "metadata":
            case "image":
                // Ignore
                break;

            case "line":
            {
                var x1 = ReadNumber(e.Attribute("x1"));
                var x2 = ReadNumber(e.Attribute("x2"));
                var y1 = ReadNumber(e.Attribute("y1"));
                var y2 = ReadNumber(e.Attribute("y2"));
                var p  = new Path(pen, null);
                p.MoveTo(x1, y1);
                p.LineTo(x2, y2);
                r = p;
            }
            break;

            case "foreignObject":
            {
                var x      = ReadNumber(e.Attribute("x"));
                var y      = ReadNumber(e.Attribute("y"));
                var width  = ReadNumber(e.Attribute("width"));
                var height = ReadNumber(e.Attribute("height"));
                r = new ForeignObject(new Point(x, y), new Size(width, height));
            }
            break;

            case "pgf":
            {
                var id = e.Attribute("id");
                System.Diagnostics.Debug.WriteLine("Ignoring pgf element" + (id != null ? ": '" + id.Value + "'" : ""));
            }
            break;

            case "switch":
            {
                // Evaluate requiredFeatures, requiredExtensions and systemLanguage
                foreach (var ee in e.Elements())
                {
                    var requiredFeatures   = ee.Attribute("requiredFeatures");
                    var requiredExtensions = ee.Attribute("requiredExtensions");
                    var systemLanguage     = ee.Attribute("systemLanguage");
                    // currently no support for any of these restrictions
                    if (requiredFeatures == null && requiredExtensions == null && systemLanguage == null)
                    {
                        AddElement(list, ee, pen, brush);
                    }
                }
            }
            break;


            // color definition that can be referred to by other elements
            case "linearGradient":
                break;

            case "mask":
                break;

            default:
                throw new NotSupportedException("SVG element \"" + e.Name.LocalName + "\" is not supported");
            }

            if (r != null)
            {
                r.Transform = ReadTransform(ReadString(e.Attribute("transform")));
                var ida = e.Attribute("id");
                if (ida != null && !string.IsNullOrEmpty(ida.Value))
                {
                    r.Id = ida.Value.Trim();
                }
                list.Add(r);
            }
        }