tile_map_plugin.h

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#ifndef TILE_MAP_TILE_MAP_PLUGIN_H_
#define TILE_MAP_TILE_MAP_PLUGIN_H_

// C++ standard libraries
#include <string>
#include <map>

// Boost libraries
#include <boost/filesystem.hpp>
#include <boost/shared_ptr.hpp>

#include <mapviz/mapviz_plugin.h>

// QT libraries
#include <QGLWidget>
#include <QObject>
#include <QWidget>

#include <mapviz/map_canvas.h>
#include <tile_map/tile_map_view.h>

// QT autogenerated files
#include "ui_tile_map_config.h"

namespace tile_map
{
  class TileSource;

  class TileMapPlugin : public mapviz::MapvizPlugin
  {
    Q_OBJECT

  public:
    TileMapPlugin();
    virtual ~TileMapPlugin();

    bool Initialize(QGLWidget* canvas);
    void Shutdown() {}

    void Draw(double x, double y, double scale);

    void Transform();

    void LoadConfig(const YAML::Node& node, const std::string& path);
    void SaveConfig(YAML::Emitter& emitter, const std::string& path);

    QWidget* GetConfigWidget(QWidget* parent);

  protected Q_SLOTS:
    void PrintError(const std::string& message);
    void PrintInfo(const std::string& message);
    void PrintWarning(const std::string& message);

    void DeleteTileSource();
    void SelectSource(const QString& source_name);
    void SaveCustomSource();
    void ResetTileCache();

  private:
    void selectTileSource(const boost::shared_ptr<TileSource>& tile_source);
    void startCustomEditing();
    void stopCustomEditing();

    Ui::tile_map_config ui_;
    QWidget* config_widget_;

    swri_transform_util::Transform transform_;
    swri_transform_util::Transform inverse_transform_;

    bool transformed_;
    
    TileMapView tile_map_;
    std::map<QString, boost::shared_ptr<TileSource> > tile_sources_;

    double last_center_x_;
    double last_center_y_;
    double last_scale_;
    int32_t last_height_;
    int32_t last_width_;

    static std::string BASE_URL_KEY;
    static std::string BING_API_KEY;
    static std::string CUSTOM_SOURCES_KEY;
    static std::string MAX_ZOOM_KEY;
    static std::string NAME_KEY;
    static std::string SOURCE_KEY;
    static std::string TYPE_KEY;
    static QString BING_NAME;
    static QString STAMEN_TERRAIN_NAME;
    static QString STAMEN_TONER_NAME;
    static QString STAMEN_WATERCOLOR_NAME;
  };
}

#endif  // TILE_MAP_TILE_MAP_PLUGIN_H_