/******************************************************************************
 *  Copyright (C) 2010-2016 by                                                *
 *    Ralf Lange (ralf.lange@longsoft.de)                                     *
 *                                                                            *
 *  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.                                       *
 *                                                                            *
 *  This program 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 General Public License for more details.                              *
 *                                                                            *
 *  You should have received a copy of the GNU General Public License         *
 *  along with this program; if not, write to the                             *
 *  Free Software Foundation, Inc.,                                           *
 *  59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
 ******************************************************************************/

#ifndef GPHOTOGRABBER_H
#define GPHOTOGRABBER_H

// Include files of the gphoto library
#include <gphoto2/gphoto2.h>

#include "technical/grabber/imagegrabber.h"


/**
 * Base class for the different gphoto grabbers.
 *
 * @author Ralf Lange
 */
class GphotoGrabber : public ImageGrabber
{
    Q_OBJECT
public:

    /**
     * Initializes the member variables.
     * @param filePath path to the output file grabbed from a device
     */
    GphotoGrabber(Frontend *f);

    /**
     * Destructor
     */
    ~GphotoGrabber();

    /**
     * Initialization of the Command line grabber.
     * @param devices The vector of initialized devices.
     * @return true on success, false otherwise.
     */
    bool initialization(QVector<ImageGrabberDevice*> &devices);

    /**
     * Starts the grabber if it is marked to be run in deamon mode.
     * @return true on success, false otherwise
     */
    bool setUp();

    /**
     * Get the live image from the camera
     */
    const QImage getLiveImage();

    /**
     * Get the raw image from the camera
     */
    const QImage getRawImage();

    /**
     * Grabs one picture from the device.
     * @return true on success, false otherwise
     */
    bool grab();

    /**
     * Shut downs the grabber process either if it is run in deamon
     * mode or "single grab" mode.
     * @return true on success, false otherwise
     */
    virtual bool tearDown();

    Camera* getCamera();

    GPContext* getContext();

private:
    void openCamera();

    void closeCamera();

    static int lookupWidget(CameraWidget  *widget,
                            const char    *key,
                            CameraWidget* *child);

    static void errorDumper(GPLogLevel  level,
                            const char *domain,
                            const char *format,
                            va_list     args,
                            void       *data);

    bool canonEnableCapture(Camera       *gphotoCamera,
                            GPContext    *gphotoContext,
                            CameraWidget *gphotoConfig);

    void populateWithConfigs(CameraWidget *gphotoConfig);

    void readImageSettings(ImageGrabberDevice *device);

    QString    filePath;

    Camera    *gphotoCamera;
    GPContext *gphotoContext;

    int        gphotoErrorId;
    int        activeSource;
    bool       isInitSuccess;
    bool       firstImage;

    QImage     liveImage;
    QImage     rawImage;

    bool       canCaptureImage;
    bool       canCaptureAudio;
    bool       canCaptureVideo;
    bool       canCapturePreview;
    bool       canConfigure;

    QString    manufacturer;
    QString    model;
};

#endif