AvailableVoicesModel.h

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#ifndef OSMSCOUT_CLIENT_QT_VAILABLEVOICESMODEL_H
#define OSMSCOUT_CLIENT_QT_VAILABLEVOICESMODEL_H
 
/*
  OSMScout - a Qt backend for libosmscout and libosmscout-map
  Copyright (C) 2020 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 <osmscoutclientqt/ClientQtImportExport.h>
 
#include <osmscoutclient/VoiceProvider.h>
 
#include <osmscoutclientqt/VoiceManager.h>
#include <osmscoutclientqt/Voice.h>
 
#include <QAbstractListModel>
#include <QNetworkDiskCache>
#include <QNetworkAccessManager>
 
namespace osmscout {

class OSMSCOUT_CLIENT_QT_API AvailableVoicesModel : public QAbstractListModel {
  Q_OBJECT
 
  Q_PROPERTY(bool loading READ isLoading NOTIFY loadingChanged)
  Q_PROPERTY(QString fetchError READ getFetchError NOTIFY loadingChanged)
 
signals:
  void loadingChanged();
 
public slots:
  void listDownloaded(const VoiceProvider &provider, QNetworkReply*);
  void reload();
 
  void onVoiceStateChanged(const AvailableVoice &voice);
 
public:
  AvailableVoicesModel();
 
  virtual ~AvailableVoicesModel();
 
  enum Roles {
    NameRole = Qt::UserRole,
    LangRole = Qt::UserRole + 1,
    GenderRole = Qt::UserRole + 2,
    LicenseRole = Qt::UserRole + 3,
    DirectoryRole = Qt::UserRole + 4,
    AuthorRole = Qt::UserRole + 5,
    DescriptionRole = Qt::UserRole + 6,
    StateRole = Qt::UserRole + 7
  };
  Q_ENUM(Roles)
 
  enum VoiceState {
    Available,
    Downloading,
    Downloaded
  };
  Q_ENUM(VoiceState)
 
  Q_INVOKABLE int rowCount(const QModelIndex &parent = QModelIndex()) const override;
  Q_INVOKABLE QVariant data(const QModelIndex &index, int role) const override;
  QHash<int, QByteArray> roleNames() const override;
  Q_INVOKABLE Qt::ItemFlags flags(const QModelIndex &index) const override;
 
  Q_INVOKABLE void download(const QModelIndex &index);
  Q_INVOKABLE void remove(const QModelIndex &index);
 
  Q_INVOKABLE QString stateStr(VoiceState state) const;
 
  inline bool isLoading(){
    return requests>0;
  }
 
  inline QString getFetchError(){
    return fetchError;
  }
 
private:
  int findRow(const QString &lang, const QString &name);
 
private:
  VoiceManagerRef           voiceManager;
  QNetworkAccessManager     webCtrl;
  QNetworkDiskCache         diskCache;
  QList<VoiceProvider>      voiceProviders;
  size_t                    requests{0};
  QList<AvailableVoice*>    items;
  QString                   fetchError;
};
 
}
 
#endif //OSMSCOUT_CLIENT_QT_VAILABLEVOICESMODEL_H