Line data    Source code

       1             : /**
       2             : Copyright (c) 2022 Roman Katuntsev <sbkarr@stappler.org>
       3             : Copyright (c) 2023 Stappler LLC <admin@stappler.dev>
       4             : 
       5             : Permission is hereby granted, free of charge, to any person obtaining a copy
       6             : of this software and associated documentation files (the "Software"), to deal
       7             : in the Software without restriction, including without limitation the rights
       8             : to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
       9             : copies of the Software, and to permit persons to whom the Software is
      10             : furnished to do so, subject to the following conditions:
      11             : 
      12             : The above copyright notice and this permission notice shall be included in
      13             : all copies or substantial portions of the Software.
      14             : 
      15             : THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      16             : IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      17             : FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
      18             : AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      19             : LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
      20             : OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
      21             : THE SOFTWARE.
      22             : **/
      23             : 
      24             : #ifndef STAPPLER_VG_SPSVGREADER_H_
      25             : #define STAPPLER_VG_SPSVGREADER_H_
      26             : 
      27             : #include "SPHtmlParser.h"
      28             : #include "SPVectorPath.h"
      29             : #include "SPGeometry.h"
      30             : 
      31             : namespace STAPPLER_VERSIONIZED stappler::vg {
      32             : 
      33             : using Metric = geom::Metric;
      34             : 
      35             : struct SvgTag : public html::Tag<StringView> {
      36        1100 :         SvgTag(StringView &r) : Tag(r) {
      37        1100 :                 rpath.setFillColor(Color4B::BLACK);
      38        1100 :                 rpath.setStrokeColor(Color4B::BLACK);
      39        1100 :         }
      40             : 
      41             :         enum Shape {
      42             :                 None,
      43             :                 Rect,
      44             :                 Circle,
      45             :                 Ellipse,
      46             :                 Line,
      47             :                 Polyline,
      48             :                 Polygon,
      49             :                 Use,
      50             :         } shape = None;
      51             : 
      52             :         // Coords layouts:
      53             :         // Rect: x, y, width, height, rx,ry
      54             :         // Circle: cx, cy, r
      55             :         // Ellipse: cx, cy, rx, ry
      56             :         // Line: x1, y1, x2, y2
      57             :         // Polyline: write directly to path
      58             :         // Polygon: write directly to path
      59             :         Mat4 mat = Mat4::INVALID;
      60             :         StringView id;
      61             :         StringView ref;
      62             :         VectorPath rpath;
      63             :         PathWriter writer;
      64             : 
      65             :         VectorPath &getPath();
      66             : 
      67             :         PathWriter &getWriter();
      68             : };
      69             : 
      70             : struct SvgReader {
      71             :         using Parser = html::Parser<SvgReader, StringView, SvgTag>;
      72             :         using Tag = SvgTag;
      73             :         using StringReader = Parser::StringReader;
      74             : 
      75             :         SvgReader();
      76             : 
      77             :         void onBeginTag(Parser &p, Tag &tag);
      78             :         void onEndTag(Parser &p, Tag &tag, bool isClosed);
      79             :         void onStyleParameter(Tag &tag, StringReader &name, StringReader &value);
      80             :         void onStyle(Tag &tag, StringReader &value);
      81             :         void onTagAttribute(Parser &p, Tag &tag, StringReader &name, StringReader &value);
      82             :         void onPushTag(Parser &p, Tag &tag);
      83             :         void onPopTag(Parser &p, Tag &tag);
      84             :         void onInlineTag(Parser &p, Tag &tag);
      85             : 
      86             :         bool _defs = false;
      87             :         float _squareLength = 0.0f;
      88             :         float _width = 0;
      89             :         float _height = 0;
      90             :         uint16_t _nextId = 0;
      91             : 
      92             :         Rect _viewBox;
      93             :         Interface::VectorType<PathXRef> _drawOrder;
      94             :         Interface::MapType<Interface::StringType, VectorPath> _paths;
      95             : };
      96             : 
      97             : }
      98             : 
      99             : #endif /* STAPPLER_VG_SPSVGREADER_H_ */