/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
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** modification, are permitted provided that the following conditions are
** met:
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**     notice, this list of conditions and the following disclaimer.
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**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
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**     from this software without specific prior written permission.
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****************************************************************************/

#ifndef CAMERA_H
#define CAMERA_H

#include <QCamera>
#include <QCameraImageCapture>
#include <QMediaRecorder>

#include <QMainWindow>

QT_BEGIN_NAMESPACE
namespace Ui { class Camera; }
QT_END_NAMESPACE

class Camera : public QMainWindow
{
    Q_OBJECT

public:
    Camera(QWidget *parent = 0);
    ~Camera();

private slots:
    void setCamera(const QByteArray &cameraDevice);

    void startCamera();
    void stopCamera();

    void record();
    void pause();
    void stop();
    void setMuted(bool);

    void toggleLock();
    void takeImage();
    void displayCaptureError(int, QCameraImageCapture::Error, const QString &errorString);

    void configureCaptureSettings();
    void configureVideoSettings();
    void configureImageSettings();

    void displayRecorderError();
    void displayCameraError();

    void updateCameraDevice(QAction *action);

    void updateCameraState(QCamera::State);
    void updateCaptureMode();
    void updateRecorderState(QMediaRecorder::State state);
    void setExposureCompensation(int index);

    void updateRecordTime();

    void processCapturedImage(int requestId, const QImage &img);
    void updateLockStatus(QCamera::LockStatus, QCamera::LockChangeReason);

    void displayViewfinder();
    void displayCapturedImage();

    void readyForCapture(bool ready);
    void imageSaved(int id, const QString &fileName);

protected:
    void keyPressEvent(QKeyEvent *event);
    void keyReleaseEvent(QKeyEvent *event);
    void closeEvent(QCloseEvent *event);

private:
    Ui::Camera *ui;

    QCamera *camera;
    QCameraImageCapture *imageCapture;
    QMediaRecorder* mediaRecorder;

    QImageEncoderSettings imageSettings;
    QAudioEncoderSettings audioSettings;
    QVideoEncoderSettings videoSettings;
    QString videoContainerFormat;
    bool isCapturingImage;
    bool applicationExiting;
};

#endif