flickrimageprovider.h

/*
 * Copyright (C) 2013 Lucien XU <sfietkonstantin@free.fr>
 *
 * You may use this file under the terms of the BSD license as follows:
 *
 * "Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *   * The names of its contributors may not be used to endorse or promote 
 *     products derived from this software without specific prior written 
 *     permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
 */ 

#ifndef FLICKRIMAGEPROVIDER_H
#define FLICKRIMAGEPROVIDER_H

#include <QtCore/QObject>
#include <QtCore/QUrl>
#include "city.h"

class QNetworkAccessManager;
struct FlickrPhoto
{
    QString photo;
    QString authorId;
};

class FlickrImageProvider : public QObject
{
    Q_OBJECT
    Q_PROPERTY(City * city READ city WRITE setCity NOTIFY cityChanged)
    Q_PROPERTY(QString photo READ photo NOTIFY photoChanged)
    Q_PROPERTY(QString author READ author NOTIFY authorChanged)
public:
    explicit FlickrImageProvider(QObject *parent = 0);
    City * city() const;
    void setCity(City *city);
    QString photo() const;
    QString author() const;
signals:
    void cityChanged();
    void photoChanged();
    void authorChanged();
public slots:
    void request();
    void selectRandomPhoto();
    void requestAuthor();
private:
    void setPhoto(const QString &photo);
    void setAuthor(const QString &author);
    void performPhotoRequest(float longitude, float latitude,
                             float radius);
    City *m_city;
    QList<FlickrPhoto> m_photos;
    QString m_photo;
    QString m_author;
    QNetworkAccessManager *m_network;
private slots:
    void slotPhotosListFinished();
    void slotAuthorFinished();
};

#endif // FLICKRIMAGEPROVIDER_H