IconLookup.h

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#ifndef OSMSCOUT_CLIENT_QT_ICONLOOKUP_H
#define OSMSCOUT_CLIENT_QT_ICONLOOKUP_H
 
/*
 OSMScout - a Qt backend for libosmscout and libosmscout-map
 Copyright (C) 2022 Lukas Karas
 
  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 <osmscoutmap/DataTileCache.h>
 
#include <osmscoutclient/DBThread.h>
 
#include <osmscoutclientqt/ClientQtImportExport.h>
#include <osmscoutclientqt/OverlayObject.h>
#include <osmscoutclientqt/DBLoadJob.h>
 
#include <QObject>
#include <QSettings>
#include <QMutex>
#include <QPoint>
#include <QRectF>
#include <QImage>
 
namespace osmscout {

struct OSMSCOUT_CLIENT_QT_API MapIcon {
  QPoint screenCoord;
  QRectF dimensions;
  GeoCoord coord;
  double distanceSquare;
  IconStyleRef iconStyle;
  QString databasePath;
  ObjectFileRef objectRef;
  int poiId;
  QString type;
  QString name;
  QString altName;
  QString ref;
  QString operatorName;
  QString phone;
  QString website;
  QString openingHours;
  QImage image;
};

class OSMSCOUT_CLIENT_QT_API IconLookup : public QObject {
  Q_OBJECT
private:
  static constexpr int iconImageUpscale=3;
  static constexpr double tapSize=4;
  QThread     *thread;
  DBThreadRef dbThread;
  DBLoadJob   *loadJob;
  osmscout::MercatorProjection projection;
  std::map<int,OverlayObjectRef> overlayObjects;
  MapParameter drawParameter;
  QPoint lookupCoord;
  std::vector<MapIcon> findIcons;
 
public slots:
  void onIconRequest(const MapViewStruct &view,
                     const QPoint &coord,
                     const std::map<int,OverlayObjectRef> &overlayObjects);
  void onDatabaseLoaded(QString dbPath,QList<osmscout::TileRef> tiles);
  void onLoadJobFinished(QMap<QString,QMap<osmscout::TileKey,osmscout::TileRef>> tiles);
 
public:
signals:
  void iconRequested(const MapViewStruct &view,
                     const QPoint &coord,
                     const std::map<int,OverlayObjectRef> &overlayObjects);
 
  void iconFound(QPoint lookupCoord, MapIcon icon);
  void iconNotFound(QPoint lookupCoord);
 
public:
  IconLookup(QThread *thread, DBThreadRef dbThread, QString iconDirectory);
  ~IconLookup() override;
 
  void RequestIcon(const MapViewStruct &view,
                   const QPoint &coord,
                   const std::map<int,OverlayObjectRef> &overlayObjects);
 
private:
  void lookupIcons(const QString &databasePath,
                   osmscout::MapData &data,
                   const TypeConfigRef &typeConfig,
                   const StyleConfigRef &styleConfig);
};

using IconLookupRef = std::shared_ptr<IconLookup> ;
 
}
#endif //OSMSCOUT_CLIENT_QT_ICONLOOKUP_H