SVGLoader.hh

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/*
 * Copyright (C) 2016 Open Source Robotics Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */
#ifndef IGNITION_COMMON_SVGLOADER_HH_
#define IGNITION_COMMON_SVGLOADER_HH_

#include <memory>
#include <string>
#include <vector>

#include <ignition/math/Vector2.hh>
#include <ignition/math/Matrix3.hh>

#include <ignition/common/graphics/Export.hh>
#include <ignition/common/Console.hh>
#include <ignition/common/SuppressWarning.hh>

namespace ignition
{
  namespace common
  {
    // Forward declare private data class
    class SVGLoaderPrivate;

    class IGNITION_COMMON_GRAPHICS_VISIBLE SVGCommand
    {
      public: SVGCommand() : cmd(' ') {}

      public: virtual ~SVGCommand() = default;

      public: char cmd;

#ifdef _WIN32
// Disable warning C4251
#pragma warning(push)
#pragma warning(disable: 4251)
#endif
      public: std::vector<double> numbers;
#ifdef _WIN32
#pragma warning(pop)
#endif
    };

    struct IGNITION_COMMON_GRAPHICS_VISIBLE SVGPath
    {
#ifdef _WIN32
// Disable warning C4251
#pragma warning(push)
#pragma warning(disable: 4251)
#endif

      std::string id;

      std::string style;

      ignition::math::Matrix3d transform;

      std::vector< std::vector<SVGCommand> > subpaths;

      std::vector< std::vector<ignition::math::Vector2d> > polylines;
#ifdef _WIN32
#pragma warning(pop)
#endif
    };

    class IGNITION_COMMON_GRAPHICS_VISIBLE SVGLoader
    {
      public: explicit SVGLoader(const unsigned int _samples);

      public: ~SVGLoader();

      public: bool Parse(const std::string &_filename,
                         std::vector<SVGPath> &_paths);

      public: static void PathsToClosedPolylines(
          const std::vector<common::SVGPath> &_paths,
          const double _tol,
          std::vector< std::vector<ignition::math::Vector2d> > &_closedPolys,
          std::vector< std::vector<ignition::math::Vector2d> > &_openPolys);

      public: void DumpPaths(const std::vector<SVGPath> &_paths,
                             std::ostream &_out) const;

      IGN_COMMON_WARN_IGNORE__DLL_INTERFACE_MISSING
      private: std::unique_ptr<SVGLoaderPrivate> dataPtr;
      IGN_COMMON_WARN_RESUME__DLL_INTERFACE_MISSING
    };
  }
}

#endif