LayerFeature.h

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#ifndef OSMSCOUT_FEATURE_LAYER_FEATURE_H
#define OSMSCOUT_FEATURE_LAYER_FEATURE_H
 
/*
  This source is part of the libosmscout library
  Copyright (C) 2014  Tim Teulings
 
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.
 
  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.
 
  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
*/
 
#include <osmscout/TypeConfig.h>
#include <osmscout/TypeFeature.h>
 
#include <osmscout/FeatureReader.h>
 
namespace osmscout {
 
  class OSMSCOUT_API LayerFeatureValue : public FeatureValue
  {
  private:
    int8_t layer=0;
 
  public:
    LayerFeatureValue() = default;
 
    explicit LayerFeatureValue(int8_t layer)
      : layer(layer)
    {
      // no code
    }
 
    void SetLayer(int8_t layer)
    {
      this->layer=layer;
    }
 
    int8_t GetLayer() const
    {
      return layer;
    }
 
    void Read(FileScanner& scanner) override;
    void Write(FileWriter& writer) override;
 
    LayerFeatureValue& operator=(const FeatureValue& other) override;
    bool operator==(const FeatureValue& other) const override;
  };
 
  class OSMSCOUT_API LayerFeature : public Feature
  {
  private:
    TagId tagLayer;
 
  public:
    static const char* const NAME;
 
  public:
    void Initialize(TagRegistry& tagRegistry) override;
 
    std::string GetName() const override;
 
    size_t GetValueAlignment() const override;
    size_t GetValueSize() const override;
    FeatureValue* AllocateValue(void* buffer) override;
 
    void Parse(TagErrorReporter& reporter,
               const TagRegistry& tagRegistry,
               const FeatureInstance& feature,
               const ObjectOSMRef& object,
               const TagMap& tags,
               FeatureValueBuffer& buffer) const override;
  };
 
  using LayerFeatureValueReader = FeatureValueReader<LayerFeature, LayerFeatureValue>;
}
 
#endif