zxing/symbian/QZXing/examples/QQrDecoder/QCameraControllerWidget.h

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#ifndef QCAMERAEXAMPLE_H
#define QCAMERAEXAMPLE_H

#include <QtGui>

// Multimedia API in QtMobility API
// Unlike the other APIs in Qt Mobility,
// the Multimedia API is not in the QtMobility namespace "QTM_USE_NAMESPACE"
#include <QCamera>
#include <QCameraImageCapture>
#include <QCameraFocus>
#include <QTimer>
#include <QFileSystemWatcher>

// QtMobility API
//#include <QSystemScreenSaver>
//QTM_USE_NAMESPACE

#include "myvideosurface.h"
#include "button.h"


class QCameraControllerWidget: public QWidget, public VideoIF
{
Q_OBJECT

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

    void paintEvent(QPaintEvent*);
    void mousePressEvent(QMouseEvent *);

    void updateVideo();


public slots:
    void enableCamera();
    void lockStatusChanged(QCamera::LockStatus status, QCamera::LockChangeReason reason);
    void searchAndLock();
    void captureImage();
    void onImageCaptured(int id, const QImage &preview);
    void error(QCamera::Error);
    void redirectImageSignalFromVideoFinder(QImage image);

    void onStateChanged(QCamera::State state) ;
    void onZoomIn();
    void onZoomOut();
    void deleteImage(const QString & folderPath);

    //void toggleFlash();


signals:
    void imageCaptured(QImage image);

private:
    QWidget*                m_videoWidget;
    QWidget*                zoomButtons;
    QCamera*                m_camera;
    QCameraImageCapture*    m_stillImageCapture;

    QStackedWidget*         m_stackedWidget;
    Button*                 zoomIn;
    Button*                 zoomOut;
    Button*                 captButton;
    QImage                  m_capturedImage;
    QString                 m_imageName;
    QString                 m_focusMessage;
    bool                    m_focusing;
    QString                 m_phoneNumber;

    bool                    bufferingSupported;
    bool                    pictureCaptured;
    bool                    showViewFinder;
    MyVideoSurface*         m_myVideoSurface;
    QCameraFocus*           cameraFocus;
    QFileSystemWatcher*      fileWatcher;
    QDir                    imageFolder;
};

#endif // QCAMERA_H