qgscoordinatereferencesystemregistry.h

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/***************************************************************************
                             qgscoordinatereferencesystemregistry.h
                             -------------------
    begin                : January 2021
    copyright            : (C) 2021 by Nyall Dawson
    email                : nyall dot dawson at gmail dot com
 ***************************************************************************/
 
/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
 
#ifndef QGSCOORDINATEREFERENCESYSTEMREGISTRY_H
#define QGSCOORDINATEREFERENCESYSTEMREGISTRY_H
 
#include <QObject>
#include <QMap>
#include <QSet>
#include "qgscoordinatereferencesystem.h"
 
class QgsCelestialBody;
class QgsProjOperation;
 
 
#ifndef SIP_RUN
 
struct CORE_EXPORT QgsCrsDbRecord
{
  QString description;
  QString projectionAcronym;
  QString srsId;
  QString authName;
  QString authId;
  Qgis::CrsType type = Qgis::CrsType::Unknown;
  bool deprecated = false;
};
#endif
 
class CORE_EXPORT QgsCoordinateReferenceSystemRegistry : public QObject
{
    Q_OBJECT
  public:
 
    explicit QgsCoordinateReferenceSystemRegistry( QObject *parent = nullptr );
 
    ~QgsCoordinateReferenceSystemRegistry();
 
    class UserCrsDetails
    {
      public:
 
        long id = -1;
 
        QString name;
 
        QString proj;
 
        QString wkt;
 
        QgsCoordinateReferenceSystem crs;
    };
 
    QList< QgsCoordinateReferenceSystemRegistry::UserCrsDetails > userCrsList() const;
 
    long addUserCrs( const QgsCoordinateReferenceSystem &crs, const QString &name, Qgis::CrsDefinitionFormat nativeFormat = Qgis::CrsDefinitionFormat::Wkt );
 
    bool updateUserCrs( long id, const QgsCoordinateReferenceSystem &crs, const QString &name, Qgis::CrsDefinitionFormat nativeFormat = Qgis::CrsDefinitionFormat::Wkt );
 
    bool removeUserCrs( long id );
 
    QMap< QString, QgsProjOperation > projOperations() const;
 
    QList< QgsCelestialBody > celestialBodies() const;
 
    QSet< QString > authorities() const;
 
    QList< QgsCrsDbRecord > crsDbRecords() const SIP_SKIP;
 
    QList< QgsCoordinateReferenceSystem > recentCrs();
 
    void pushRecent( const QgsCoordinateReferenceSystem &crs );
 
    void removeRecent( const QgsCoordinateReferenceSystem &crs );
 
    void clearRecent();
 
  signals:
 
    void userCrsChanged( const QString &id );
 
    void userCrsAdded( const QString &id );
 
    void userCrsRemoved( long id );
 
    void crsDefinitionsChanged();
 
    void recentCrsPushed( const QgsCoordinateReferenceSystem &crs );
 
    void recentCrsRemoved( const QgsCoordinateReferenceSystem &crs );
 
    void recentCrsCleared();
 
  private:
 
    bool insertProjection( const QString &projectionAcronym );
 
    mutable QReadWriteLock mCrsDbRecordsLock;
    mutable bool mCrsDbRecordsPopulated = false;
    mutable QList< QgsCrsDbRecord > mCrsDbRecords;
 
};
 
 
#endif // QGSCOORDINATEREFERENCESYSTEMREGISTRY_H