barcodereader.hpp

一个基于BREW上的WEB service程序,通过扫描图书的条形码,登陆WEB站点,利用SOAP-RPC来查询图书信息.

#ifndef __SOPHIACRADLE_BARCODEREADER_HPP
#define __SOPHIACRADLE_BARCODEREADER_HPP

#include <SophiaFramework.hpp>
#include "SGXCamera.hpp"
#include "SGXBarCode.hpp"

SFMTYPEDEFCLASS(BarCodeReader)
class BarCodeReader {
SFMSEALCOPY(BarCodeReader)
public:
    enum StatusEnum {       // 奜晹僀儀儞僩僴儞僪儔梡忬懺僐乕僪
        STATUS_FRAME = 0,   // 怴偟偄僾儗價儏乕夋憸傪庢摼偟偨
        STATUS_GOTBARCODE,  // 僶乕僐乕僪夝愅姰椆
        STATUS_STOP,
        STATUS_LIMIT
    };
    enum CameraStatusEnum {     // 僇儊儔偺忬懺僐乕僪
        CAMERASTATUS_NOT_INITIALIZED = 0,       // 枹弶婜壔
        CAMERASTATUS_READY,                     // 懸婡忬懺
        CAMERASTATUS_ACTIVE,                    // 僇儊儔婲摦拞
        CAMERASTATUS_SUSPEND,                   // 僇儊儔媥巭拞
        CAMERASTATUS_LIMIT
    };
private:
    typedef Void (*NotifySPP)(StatusEnum status, VoidPtr reference);
    SGXCamera _camera;
    SGXBarCode _barcode;
    CameraStatusEnum _status;
    VoidPtr _reference;
    NotifySPP _spp;
    SFXAnsiString _isbn;
    SFXRectangle _previewrect;

public:
    BarCodeReader(Void);
    virtual ~BarCodeReader(Void);
    //Void Suspend(Void);
    //SFCError Resume(Void);
    SFCError Initialize(SFXRectangleConstRef rect, NotifySPP spp, VoidPtr reference);
    SFXAnsiStringConstRef GetCode(Void) const;
    SFBBitmapSmpConstRef GetBitmap(Void) const;
    SFCError Start(Void);
    Void Stop(Void);
    Void Terminate(Void);
    CameraStatusEnum GetCameraStatus(Void) const;
private:
    static Void OnCameraSHP(SGXCamera::StatusEnum status, SFCError error, VoidPtr reference);
    Void OnCamera(SGXCamera::StatusEnum status, SFCError error);
    Bool CheckISBN(SFXAnsiStringConstRef code); 
};

#endif