markus / MarkupToPDF / Controls / Common / StringToPathConverter.cs @ 24c5e56c
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| 1 | 787a4489 | KangIngu | using System; |
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| 2 | using System.Net; |
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| 3 | using System.Windows; |
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| 4 | using System.Windows.Controls; |
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| 5 | using System.Windows.Documents; |
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| 6 | using System.Windows.Ink; |
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| 7 | using System.Windows.Input; |
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| 8 | using System.Windows.Media; |
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| 9 | using System.Windows.Media.Animation; |
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| 10 | using System.Windows.Shapes; |
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| 11 | using System.Windows.Data; |
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| 12 | using System.Globalization; |
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| 13 | |||
| 14 | namespace MarkupToPDF.Controls.Common |
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| 15 | {
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| 16 | public class StringToPathConverter : IValueConverter, IDisposable |
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| 17 | {
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| 18 | #region Const & Private Variables |
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| 19 | const bool AllowSign = true; |
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| 20 | const bool AllowComma = true; |
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| 21 | const bool IsFilled = true; |
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| 22 | const bool IsClosed = true; |
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| 23 | |||
| 24 | IFormatProvider _formatProvider; |
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| 25 | |||
| 26 | PathFigure _figure = null; // Figure object, which will accept parsed segments |
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| 27 | string _pathString; // Input string to be parsed |
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| 28 | int _pathLength; |
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| 29 | int _curIndex; // Location to read next character from |
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| 30 | bool _figureStarted; // StartFigure is effective |
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| 31 | |||
| 32 | Point _lastStart; // Last figure starting point |
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| 33 | Point _lastPoint; // Last point |
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| 34 | Point _secondLastPoint; // The point before last point |
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| 35 | |||
| 36 | char _token; // Non whitespace character returned by ReadToken |
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| 37 | #endregion |
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| 38 | |||
| 39 | #region Public Functionality |
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| 40 | /// <summary> |
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| 41 | /// Main conversion routine - converts string path data definition to PathGeometry object |
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| 42 | /// </summary> |
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| 43 | /// <param name="path">String with path data definition</param> |
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| 44 | /// <returns>PathGeometry object created from string definition</returns> |
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| 45 | public PathGeometry Convert(string path) |
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| 46 | {
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| 47 | if (null == path) |
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| 48 | throw new ArgumentException("Path string cannot be null!");
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| 49 | |||
| 50 | if (path.Length == 0) |
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| 51 | throw new ArgumentException("Path string cannot be empty!");
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| 52 | |||
| 53 | return parse(path); |
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| 54 | } |
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| 55 | |||
| 56 | /// <summary> |
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| 57 | /// Main back conversion routine - converts PathGeometry object to its string equivalent |
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| 58 | /// </summary> |
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| 59 | /// <param name="geometry">Path Geometry object</param> |
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| 60 | /// <returns>String equivalent to PathGeometry contents</returns> |
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| 61 | public string ConvertBack(PathGeometry geometry) |
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| 62 | {
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| 63 | if (null == geometry) |
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| 64 | throw new ArgumentException("Path Geometry cannot be null!");
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| 65 | |||
| 66 | return parseBack(geometry); |
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| 67 | } |
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| 68 | #endregion |
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| 69 | |||
| 70 | #region Private Functionality |
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| 71 | /// <summary> |
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| 72 | /// Main parser routine, which loops over each char in received string, and performs actions according to command/parameter being passed |
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| 73 | /// </summary> |
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| 74 | /// <param name="path">String with path data definition</param> |
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| 75 | /// <returns>PathGeometry object created from string definition</returns> |
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| 76 | private PathGeometry parse(string path) |
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| 77 | {
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| 78 | PathGeometry _pathGeometry = null; |
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| 79 | |||
| 80 | |||
| 81 | _formatProvider = CultureInfo.InvariantCulture; |
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| 82 | _pathString = path; |
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| 83 | _pathLength = path.Length; |
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| 84 | _curIndex = 0; |
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| 85 | |||
| 86 | _secondLastPoint = new Point(0, 0); |
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| 87 | _lastPoint = new Point(0, 0); |
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| 88 | _lastStart = new Point(0, 0); |
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| 89 | |||
| 90 | _figureStarted = false; |
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| 91 | |||
| 92 | bool first = true; |
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| 93 | |||
| 94 | char last_cmd = ' '; |
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| 95 | |||
| 96 | while (ReadToken()) // Empty path is allowed in XAML |
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| 97 | {
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| 98 | char cmd = _token; |
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| 99 | |||
| 100 | if (first) |
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| 101 | {
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| 102 | if ((cmd != 'M') && (cmd != 'm')) // Path starts with M|m |
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| 103 | {
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| 104 | ThrowBadToken(); |
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| 105 | } |
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| 106 | |||
| 107 | first = false; |
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| 108 | } |
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| 109 | |||
| 110 | switch (cmd) |
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| 111 | {
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| 112 | case 'm': |
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| 113 | case 'M': |
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| 114 | // XAML allows multiple points after M/m |
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| 115 | _lastPoint = ReadPoint(cmd, !AllowComma); |
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| 116 | |||
| 117 | _figure = new PathFigure(); |
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| 118 | _figure.StartPoint = _lastPoint; |
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| 119 | _figure.IsFilled = IsFilled; |
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| 120 | _figure.IsClosed = !IsClosed; |
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| 121 | //context.BeginFigure(_lastPoint, IsFilled, !IsClosed); |
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| 122 | _figureStarted = true; |
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| 123 | _lastStart = _lastPoint; |
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| 124 | last_cmd = 'M'; |
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| 125 | |||
| 126 | while (IsNumber(AllowComma)) |
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| 127 | {
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| 128 | _lastPoint = ReadPoint(cmd, !AllowComma); |
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| 129 | |||
| 130 | LineSegment _lineSegment = new LineSegment(); |
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| 131 | _lineSegment.Point = _lastPoint; |
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| 132 | _figure.Segments.Add(_lineSegment); |
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| 133 | //context.LineTo(_lastPoint, IsStroked, !IsSmoothJoin); |
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| 134 | last_cmd = 'L'; |
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| 135 | } |
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| 136 | break; |
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| 137 | |||
| 138 | case 'l': |
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| 139 | case 'L': |
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| 140 | case 'h': |
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| 141 | case 'H': |
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| 142 | case 'v': |
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| 143 | case 'V': |
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| 144 | EnsureFigure(); |
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| 145 | |||
| 146 | do |
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| 147 | {
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| 148 | switch (cmd) |
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| 149 | {
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| 150 | case 'l': _lastPoint = ReadPoint(cmd, !AllowComma); break; |
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| 151 | case 'L': _lastPoint = ReadPoint(cmd, !AllowComma); break; |
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| 152 | case 'h': _lastPoint.X += ReadNumber(!AllowComma); break; |
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| 153 | case 'H': _lastPoint.X = ReadNumber(!AllowComma); break; |
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| 154 | case 'v': _lastPoint.Y += ReadNumber(!AllowComma); break; |
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| 155 | case 'V': _lastPoint.Y = ReadNumber(!AllowComma); break; |
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| 156 | } |
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| 157 | |||
| 158 | LineSegment _lineSegment = new LineSegment(); |
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| 159 | _lineSegment.Point = _lastPoint; |
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| 160 | _figure.Segments.Add(_lineSegment); |
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| 161 | //context.LineTo(_lastPoint, IsStroked, !IsSmoothJoin); |
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| 162 | } |
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| 163 | while (IsNumber(AllowComma)); |
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| 164 | |||
| 165 | last_cmd = 'L'; |
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| 166 | break; |
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| 167 | |||
| 168 | case 'c': |
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| 169 | case 'C': // cubic Bezier |
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| 170 | case 's': |
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| 171 | case 'S': // smooth cublic Bezier |
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| 172 | EnsureFigure(); |
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| 173 | |||
| 174 | do |
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| 175 | {
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| 176 | Point p; |
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| 177 | |||
| 178 | if ((cmd == 's') || (cmd == 'S')) |
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| 179 | {
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| 180 | if (last_cmd == 'C') |
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| 181 | {
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| 182 | p = Reflect(); |
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| 183 | } |
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| 184 | else |
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| 185 | {
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| 186 | p = _lastPoint; |
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| 187 | } |
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| 188 | |||
| 189 | _secondLastPoint = ReadPoint(cmd, !AllowComma); |
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| 190 | } |
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| 191 | else |
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| 192 | {
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| 193 | p = ReadPoint(cmd, !AllowComma); |
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| 194 | |||
| 195 | _secondLastPoint = ReadPoint(cmd, AllowComma); |
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| 196 | } |
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| 197 | |||
| 198 | _lastPoint = ReadPoint(cmd, AllowComma); |
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| 199 | |||
| 200 | BezierSegment _bizierSegment = new BezierSegment(); |
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| 201 | _bizierSegment.Point1 = p; |
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| 202 | _bizierSegment.Point2 = _secondLastPoint; |
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| 203 | _bizierSegment.Point3 = _lastPoint; |
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| 204 | _figure.Segments.Add(_bizierSegment); |
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| 205 | //context.BezierTo(p, _secondLastPoint, _lastPoint, IsStroked, !IsSmoothJoin); |
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| 206 | |||
| 207 | last_cmd = 'C'; |
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| 208 | } |
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| 209 | while (IsNumber(AllowComma)); |
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| 210 | |||
| 211 | break; |
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| 212 | |||
| 213 | case 'q': |
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| 214 | case 'Q': // quadratic Bezier |
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| 215 | case 't': |
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| 216 | case 'T': // smooth quadratic Bezier |
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| 217 | EnsureFigure(); |
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| 218 | |||
| 219 | do |
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| 220 | {
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| 221 | if ((cmd == 't') || (cmd == 'T')) |
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| 222 | {
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| 223 | if (last_cmd == 'Q') |
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| 224 | {
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| 225 | _secondLastPoint = Reflect(); |
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| 226 | } |
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| 227 | else |
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| 228 | {
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| 229 | _secondLastPoint = _lastPoint; |
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| 230 | } |
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| 231 | |||
| 232 | _lastPoint = ReadPoint(cmd, !AllowComma); |
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| 233 | } |
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| 234 | else |
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| 235 | {
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| 236 | _secondLastPoint = ReadPoint(cmd, !AllowComma); |
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| 237 | _lastPoint = ReadPoint(cmd, AllowComma); |
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| 238 | } |
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| 239 | |||
| 240 | QuadraticBezierSegment _quadraticBezierSegment = new QuadraticBezierSegment(); |
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| 241 | _quadraticBezierSegment.Point1 = _secondLastPoint; |
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| 242 | _quadraticBezierSegment.Point2 = _lastPoint; |
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| 243 | _figure.Segments.Add(_quadraticBezierSegment); |
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| 244 | //context.QuadraticBezierTo(_secondLastPoint, _lastPoint, IsStroked, !IsSmoothJoin); |
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| 245 | |||
| 246 | last_cmd = 'Q'; |
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| 247 | } |
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| 248 | while (IsNumber(AllowComma)); |
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| 249 | |||
| 250 | break; |
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| 251 | |||
| 252 | case 'a': |
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| 253 | case 'A': |
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| 254 | EnsureFigure(); |
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| 255 | |||
| 256 | do |
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| 257 | {
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| 258 | // A 3,4 5, 0, 0, 6,7 |
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| 259 | double w = ReadNumber(!AllowComma); |
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| 260 | double h = ReadNumber(AllowComma); |
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| 261 | double rotation = ReadNumber(AllowComma); |
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| 262 | bool large = ReadBool(); |
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| 263 | bool sweep = ReadBool(); |
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| 264 | |||
| 265 | _lastPoint = ReadPoint(cmd, AllowComma); |
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| 266 | |||
| 267 | ArcSegment _arcSegment = new ArcSegment(); |
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| 268 | _arcSegment.Point = _lastPoint; |
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| 269 | _arcSegment.Size = new Size(w, h); |
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| 270 | _arcSegment.RotationAngle = rotation; |
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| 271 | _arcSegment.IsLargeArc = large; |
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| 272 | _arcSegment.SweepDirection = sweep ? SweepDirection.Clockwise : SweepDirection.Counterclockwise; |
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| 273 | _figure.Segments.Add(_arcSegment); |
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| 274 | //context.ArcTo( |
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| 275 | // _lastPoint, |
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| 276 | // new Size(w, h), |
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| 277 | // rotation, |
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| 278 | // large, |
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| 279 | // sweep ? SweepDirection.Clockwise : SweepDirection.Counterclockwise, |
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| 280 | // IsStroked, |
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| 281 | // !IsSmoothJoin |
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| 282 | // ); |
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| 283 | } |
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| 284 | while (IsNumber(AllowComma)); |
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| 285 | |||
| 286 | last_cmd = 'A'; |
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| 287 | break; |
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| 288 | |||
| 289 | case 'z': |
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| 290 | case 'Z': |
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| 291 | EnsureFigure(); |
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| 292 | _figure.IsClosed = IsClosed; |
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| 293 | //context.SetClosedState(IsClosed); |
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| 294 | |||
| 295 | _figureStarted = false; |
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| 296 | last_cmd = 'Z'; |
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| 297 | |||
| 298 | _lastPoint = _lastStart; // Set reference point to be first point of current figure |
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| 299 | break; |
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| 300 | |||
| 301 | default: |
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| 302 | ThrowBadToken(); |
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| 303 | break; |
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| 304 | } |
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| 305 | } |
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| 306 | |||
| 307 | if (null != _figure) |
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| 308 | {
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| 309 | _pathGeometry = new PathGeometry(); |
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| 310 | _pathGeometry.Figures.Add(_figure); |
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| 311 | |||
| 312 | } |
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| 313 | return _pathGeometry; |
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| 314 | } |
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| 315 | |||
| 316 | void SkipDigits(bool signAllowed) |
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| 317 | {
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| 318 | // Allow for a sign |
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| 319 | if (signAllowed && More() && ((_pathString[_curIndex] == '-') || _pathString[_curIndex] == '+')) |
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| 320 | {
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| 321 | _curIndex++; |
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| 322 | } |
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| 323 | |||
| 324 | while (More() && (_pathString[_curIndex] >= '0') && (_pathString[_curIndex] <= '9')) |
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| 325 | {
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| 326 | _curIndex++; |
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| 327 | } |
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| 328 | } |
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| 329 | |||
| 330 | bool ReadBool() |
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| 331 | {
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| 332 | SkipWhiteSpace(AllowComma); |
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| 333 | |||
| 334 | if (More()) |
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| 335 | {
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| 336 | _token = _pathString[_curIndex++]; |
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| 337 | |||
| 338 | if (_token == '0') |
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| 339 | {
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| 340 | return false; |
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| 341 | } |
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| 342 | else if (_token == '1') |
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| 343 | {
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| 344 | return true; |
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| 345 | } |
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| 346 | } |
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| 347 | |||
| 348 | ThrowBadToken(); |
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| 349 | |||
| 350 | return false; |
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| 351 | } |
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| 352 | |||
| 353 | private Point Reflect() |
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| 354 | {
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| 355 | return new Point(2 * _lastPoint.X - _secondLastPoint.X, |
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| 356 | 2 * _lastPoint.Y - _secondLastPoint.Y); |
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| 357 | } |
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| 358 | |||
| 359 | private void EnsureFigure() |
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| 360 | {
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| 361 | if (!_figureStarted) |
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| 362 | {
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| 363 | _figure = new PathFigure(); |
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| 364 | _figure.StartPoint = _lastStart; |
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| 365 | |||
| 366 | //_context.BeginFigure(_lastStart, IsFilled, !IsClosed); |
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| 367 | _figureStarted = true; |
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| 368 | } |
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| 369 | } |
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| 370 | |||
| 371 | double ReadNumber(bool allowComma) |
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| 372 | {
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| 373 | if (!IsNumber(allowComma)) |
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| 374 | {
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| 375 | ThrowBadToken(); |
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| 376 | } |
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| 377 | |||
| 378 | bool simple = true; |
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| 379 | int start = _curIndex; |
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| 380 | |||
| 381 | // |
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| 382 | // Allow for a sign |
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| 383 | // |
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| 384 | // There are numbers that cannot be preceded with a sign, for instance, -NaN, but it's |
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| 385 | // fine to ignore that at this point, since the CLR parser will catch this later. |
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| 386 | // |
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| 387 | if (More() && ((_pathString[_curIndex] == '-') || _pathString[_curIndex] == '+')) |
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| 388 | {
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| 389 | _curIndex++; |
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| 390 | } |
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| 391 | |||
| 392 | // Check for Infinity (or -Infinity). |
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| 393 | if (More() && (_pathString[_curIndex] == 'I')) |
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| 394 | {
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| 395 | // |
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| 396 | // Don't bother reading the characters, as the CLR parser will |
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| 397 | // do this for us later. |
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| 398 | // |
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| 399 | _curIndex = Math.Min(_curIndex + 8, _pathLength); // "Infinity" has 8 characters |
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| 400 | simple = false; |
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| 401 | } |
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| 402 | // Check for NaN |
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| 403 | else if (More() && (_pathString[_curIndex] == 'N')) |
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| 404 | {
|
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| 405 | // |
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| 406 | // Don't bother reading the characters, as the CLR parser will |
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| 407 | // do this for us later. |
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| 408 | // |
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| 409 | _curIndex = Math.Min(_curIndex + 3, _pathLength); // "NaN" has 3 characters |
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| 410 | simple = false; |
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| 411 | } |
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| 412 | else |
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| 413 | {
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| 414 | SkipDigits(!AllowSign); |
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| 415 | |||
| 416 | // Optional period, followed by more digits |
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| 417 | if (More() && (_pathString[_curIndex] == '.')) |
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| 418 | {
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| 419 | simple = false; |
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| 420 | _curIndex++; |
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| 421 | SkipDigits(!AllowSign); |
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| 422 | } |
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| 423 | |||
| 424 | // Exponent |
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| 425 | if (More() && ((_pathString[_curIndex] == 'E') || (_pathString[_curIndex] == 'e'))) |
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| 426 | {
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| 427 | simple = false; |
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| 428 | _curIndex++; |
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| 429 | SkipDigits(AllowSign); |
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| 430 | } |
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| 431 | } |
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| 432 | |||
| 433 | if (simple && (_curIndex <= (start + 8))) // 32-bit integer |
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| 434 | {
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| 435 | int sign = 1; |
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| 436 | |||
| 437 | if (_pathString[start] == '+') |
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| 438 | {
|
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| 439 | start++; |
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| 440 | } |
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| 441 | else if (_pathString[start] == '-') |
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| 442 | {
|
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| 443 | start++; |
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| 444 | sign = -1; |
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| 445 | } |
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| 446 | |||
| 447 | int value = 0; |
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| 448 | |||
| 449 | while (start < _curIndex) |
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| 450 | {
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| 451 | value = value * 10 + (_pathString[start] - '0'); |
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| 452 | start++; |
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| 453 | } |
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| 454 | |||
| 455 | return value * sign; |
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| 456 | } |
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| 457 | else |
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| 458 | {
|
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| 459 | string subString = _pathString.Substring(start, _curIndex - start); |
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| 460 | |||
| 461 | try |
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| 462 | {
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| 463 | return System.Convert.ToDouble(subString, _formatProvider); |
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| 464 | } |
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| 465 | catch (FormatException except) |
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| 466 | {
|
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| 467 | throw new FormatException(string.Format("Unexpected character in path '{0}' at position {1}", _pathString, _curIndex - 1), except);
|
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| 468 | } |
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| 469 | } |
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| 470 | } |
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| 471 | |||
| 472 | private bool IsNumber(bool allowComma) |
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| 473 | {
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| 474 | bool commaMet = SkipWhiteSpace(allowComma); |
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| 475 | |||
| 476 | if (More()) |
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| 477 | {
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| 478 | _token = _pathString[_curIndex]; |
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| 479 | |||
| 480 | // Valid start of a number |
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| 481 | if ((_token == '.') || (_token == '-') || (_token == '+') || ((_token >= '0') && (_token <= '9')) |
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| 482 | || (_token == 'I') // Infinity |
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| 483 | || (_token == 'N')) // NaN |
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| 484 | {
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| 485 | return true; |
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| 486 | } |
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| 487 | } |
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| 488 | |||
| 489 | if (commaMet) // Only allowed between numbers |
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| 490 | {
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| 491 | ThrowBadToken(); |
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| 492 | } |
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| 493 | |||
| 494 | return false; |
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| 495 | } |
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| 496 | |||
| 497 | private Point ReadPoint(char cmd, bool allowcomma) |
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| 498 | {
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| 499 | double x = ReadNumber(allowcomma); |
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| 500 | double y = ReadNumber(AllowComma); |
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| 501 | |||
| 502 | if (cmd >= 'a') // 'A' < 'a'. lower case for relative |
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| 503 | {
|
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| 504 | x += _lastPoint.X; |
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| 505 | y += _lastPoint.Y; |
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| 506 | } |
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| 507 | |||
| 508 | return new Point(x, y); |
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| 509 | } |
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| 510 | |||
| 511 | private bool ReadToken() |
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| 512 | {
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| 513 | SkipWhiteSpace(!AllowComma); |
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| 514 | |||
| 515 | // Check for end of string |
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| 516 | if (More()) |
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| 517 | {
|
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| 518 | _token = _pathString[_curIndex++]; |
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| 519 | |||
| 520 | return true; |
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| 521 | } |
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| 522 | else |
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| 523 | {
|
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| 524 | return false; |
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| 525 | } |
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| 526 | } |
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| 527 | |||
| 528 | bool More() |
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| 529 | {
|
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| 530 | return _curIndex < _pathLength; |
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| 531 | } |
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| 532 | |||
| 533 | // Skip white space, one comma if allowed |
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| 534 | private bool SkipWhiteSpace(bool allowComma) |
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| 535 | {
|
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| 536 | bool commaMet = false; |
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| 537 | |||
| 538 | while (More()) |
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| 539 | {
|
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| 540 | char ch = _pathString[_curIndex]; |
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| 541 | |||
| 542 | switch (ch) |
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| 543 | {
|
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| 544 | case ' ': |
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| 545 | case '\n': |
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| 546 | case '\r': |
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| 547 | case '\t': // SVG whitespace |
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| 548 | break; |
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| 549 | f1918134 | djkim | case ';': |
| 550 | 787a4489 | KangIngu | case ',': |
| 551 | if (allowComma) |
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| 552 | {
|
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| 553 | commaMet = true; |
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| 554 | allowComma = false; // one comma only |
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| 555 | } |
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| 556 | else |
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| 557 | {
|
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| 558 | ThrowBadToken(); |
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| 559 | } |
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| 560 | break; |
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| 561 | |||
| 562 | default: |
||
| 563 | // Avoid calling IsWhiteSpace for ch in (' ' .. 'z']
|
||
| 564 | if (((ch > ' ') && (ch <= 'z')) || !Char.IsWhiteSpace(ch)) |
||
| 565 | {
|
||
| 566 | return commaMet; |
||
| 567 | } |
||
| 568 | break; |
||
| 569 | } |
||
| 570 | |||
| 571 | _curIndex++; |
||
| 572 | } |
||
| 573 | |||
| 574 | return commaMet; |
||
| 575 | } |
||
| 576 | |||
| 577 | private void ThrowBadToken() |
||
| 578 | {
|
||
| 579 | throw new FormatException(string.Format("Unexpected character in path '{0}' at position {1}", _pathString, _curIndex - 1));
|
||
| 580 | } |
||
| 581 | |||
| 582 | static internal char GetNumericListSeparator(IFormatProvider provider) |
||
| 583 | {
|
||
| 584 | char numericSeparator = ','; |
||
| 585 | |||
| 586 | // Get the NumberFormatInfo out of the provider, if possible |
||
| 587 | // If the IFormatProvider doesn't not contain a NumberFormatInfo, then |
||
| 588 | // this method returns the current culture's NumberFormatInfo. |
||
| 589 | NumberFormatInfo numberFormat = NumberFormatInfo.GetInstance(provider); |
||
| 590 | |||
| 591 | // Is the decimal separator is the same as the list separator? |
||
| 592 | // If so, we use the ";". |
||
| 593 | if ((numberFormat.NumberDecimalSeparator.Length > 0) && (numericSeparator == numberFormat.NumberDecimalSeparator[0])) |
||
| 594 | {
|
||
| 595 | numericSeparator = ';'; |
||
| 596 | } |
||
| 597 | |||
| 598 | return numericSeparator; |
||
| 599 | } |
||
| 600 | |||
| 601 | private string parseBack(PathGeometry geometry) |
||
| 602 | {
|
||
| 603 | System.Text.StringBuilder sb = new System.Text.StringBuilder(); |
||
| 604 | IFormatProvider provider = new System.Globalization.CultureInfo("en-us");
|
||
| 605 | string format = null; |
||
| 606 | |||
| 607 | foreach (PathFigure figure in geometry.Figures) |
||
| 608 | {
|
||
| 609 | sb.Append("M " + ((IFormattable)figure.StartPoint).ToString(format, provider) + " ");
|
||
| 610 | |||
| 611 | foreach (PathSegment segment in figure.Segments) |
||
| 612 | {
|
||
| 613 | char separator = GetNumericListSeparator(provider); |
||
| 614 | |||
| 615 | if (segment.GetType() == typeof(LineSegment)) |
||
| 616 | {
|
||
| 617 | LineSegment _lineSegment = segment as LineSegment; |
||
| 618 | |||
| 619 | sb.Append("L " + ((IFormattable)_lineSegment.Point).ToString(format, provider) + " ");
|
||
| 620 | } |
||
| 621 | else if (segment.GetType() == typeof(BezierSegment)) |
||
| 622 | {
|
||
| 623 | BezierSegment _bezierSegment = segment as BezierSegment; |
||
| 624 | |||
| 625 | sb.Append(String.Format(provider, |
||
| 626 | "C{1:" + format + "}{0}{2:" + format + "}{0}{3:" + format + "} ",
|
||
| 627 | separator, |
||
| 628 | _bezierSegment.Point1, |
||
| 629 | _bezierSegment.Point2, |
||
| 630 | _bezierSegment.Point3 |
||
| 631 | )); |
||
| 632 | } |
||
| 633 | else if (segment.GetType() == typeof(QuadraticBezierSegment)) |
||
| 634 | {
|
||
| 635 | QuadraticBezierSegment _quadraticBezierSegment = segment as QuadraticBezierSegment; |
||
| 636 | |||
| 637 | sb.Append(String.Format(provider, |
||
| 638 | "Q{1:" + format + "}{0}{2:" + format + "} ",
|
||
| 639 | separator, |
||
| 640 | _quadraticBezierSegment.Point1, |
||
| 641 | _quadraticBezierSegment.Point2)); |
||
| 642 | } |
||
| 643 | else if (segment.GetType() == typeof(ArcSegment)) |
||
| 644 | {
|
||
| 645 | ArcSegment _arcSegment = segment as ArcSegment; |
||
| 646 | |||
| 647 | sb.Append(String.Format(provider, |
||
| 648 | "A{1:" + format + "}{0}{2:" + format + "}{0}{3}{0}{4}{0}{5:" + format + "} ",
|
||
| 649 | separator, |
||
| 650 | _arcSegment.Size, |
||
| 651 | _arcSegment.RotationAngle, |
||
| 652 | _arcSegment.IsLargeArc ? "1" : "0", |
||
| 653 | _arcSegment.SweepDirection == SweepDirection.Clockwise ? "1" : "0", |
||
| 654 | _arcSegment.Point)); |
||
| 655 | } |
||
| 656 | } |
||
| 657 | |||
| 658 | if (figure.IsClosed) |
||
| 659 | sb.Append("Z");
|
||
| 660 | } |
||
| 661 | |||
| 662 | return sb.ToString(); |
||
| 663 | } |
||
| 664 | #endregion |
||
| 665 | |||
| 666 | #region IValueConverter Members |
||
| 667 | |||
| 668 | public object Convert(object value, Type targetType, object parameter, CultureInfo culture) |
||
| 669 | {
|
||
| 670 | string path = value as string; |
||
| 671 | if (null != path) |
||
| 672 | return Convert(path); |
||
| 673 | else |
||
| 674 | return null; |
||
| 675 | } |
||
| 676 | |||
| 677 | public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) |
||
| 678 | {
|
||
| 679 | PathGeometry geometry = value as PathGeometry; |
||
| 680 | |||
| 681 | if (null != geometry) |
||
| 682 | return ConvertBack(geometry); |
||
| 683 | else |
||
| 684 | return default(string); |
||
| 685 | } |
||
| 686 | |||
| 687 | #endregion |
||
| 688 | |||
| 689 | public void Dispose() |
||
| 690 | {
|
||
| 691 | a6f7f9b6 | djkim | //GC.Collect(); |
| 692 | 24c5e56c | taeseongkim | ////GC.SuppressFinalize(this); |
| 693 | 787a4489 | KangIngu | } |
| 694 | } |
||
| 695 | } |
