Question

我是按照MVC模式用c ++做的第一个项目。我有一个控制器类Session，它具有管理类的所有功能＆＃34; ClientTsFrm＆＃34;，一个视图。我想要做的就是将所有发生的事件与视图类进行通信。为此，我使用了观察者模式，实际上是这个实现1

Session.h会话也是一个单身人士。

#pragma once

#include "User.h"
#include "Config.h"

#include "../data/message.h"

#include <list>
#include <cstring>
#include <stdio.h>
#include <cstdlib> 
#include "../lib/eventtype.h"
#include "../lib/Subject.h"

#ifndef WX_PRECOMP
#include <wx/wx.h>
#include <wx/frame.h>
#else
#include <wx/wxprec.h>
#endif
#include <wx/richtext/richtextctrl.h>
#include <wx/grid.h>


typedef std::list<UserPTR> UserList;
typedef std::shared_ptr<UserList> UserListPTR;

/* 
 * Set and get functions
 */

class Session: public Subject<EventTS>{
public:
    static Session* Instance();
    private:
    Session();  // Private so that it can  not be called
    Session(Session const&){};             // copy constructor is private
    Session& operator=(Session const&){};  // assignment operator is private
    static Session* m_pInstance;
public:
private:
    Session* m_instance;
    ConfigPTR m_config;
    UserListPTR m_luser;
    char* m_translationEngine;
    MessageQueuePTR m_pending;
    MessageQueuePTR m_queue;
};

Subject.h

//
// Copyright (c) 2013 Juan Palacios juan.palacios.puyana@gmail.com
// Subject to the BSD 2-Clause License
// - see < http://opensource.org/licenses/BSD-2-Clause>
//
#ifndef SUBJECT_H_
#define SUBJECT_H_
#include <functional>
#include <map>
#include <vector>
#include <utility> // for std::forward
template <typename Event>
class Subject
{
public:
Subject()=default;
template <typename Observer>
void registerObserver(const Event& event, Observer&& observer)
{
observers_[event].push_back(std::forward<Observer>(observer));
}
template <typename Observer>
void registerObserver(Event&& event, Observer&& observer)
{
observers_[std::move(event)].push_back(std::forward<Observer>(observer));
}
void notify(const Event& event) const
{
for (const auto& obs : observers_.at(event)) obs();
}
// disallow copying and assigning
Subject(const Subject&)=delete;
Subject& operator=(const Subject&)=delete;
private:
std::map<Event, std::vector<std::function<void()>>> observers_;
};
#endif // SUBJECT_H_

ClientTsFrm.h

#pragma once

#ifdef __BORLANDC__
#pragma hdrstop
#endif

#ifndef WX_PRECOMP
#include <wx/wx.h>
#include <wx/frame.h>
#else
#include <wx/wxprec.h>
#endif

#include "../Data/config.h"
#include "../lib/ClientTS.h"
#include "../data/Session.h"
#include "../data/Message.h"  

#include "FrmMailSending.h"
#include "FrmSettingMail.h"
#include "AudioWizard.h"
#include "NationList.h"
#include "LoginWarnings.h" 
#include "../ArchiveLog.h"

#include "FrmSaveChat.h"

#include <wx/sizer.h>
#include <wx/wx.h>
#include <wx/timer.h>
#include <wx/stattext.h>
#include <wx/richtext/richtextctrl.h>
#include <wx/textctrl.h>
#include <wx/button.h>
#include <wx/grid.h>

#include "../GlobalVariables.h"
#include "../translateController/translateController.h"
#include "../translateController/translateVariable.h"

#include <list>
//#include "../lib/Observer.h"

#define MENU_ESCI 1800
#define MENU_OPZIONI 1801
#define MENU_SPEECH 1802



class ClientTsFrm : public wxFrame
{

    ClientTsFrm(LoginWarnings *warn, wxWindow *parent, wxWindowID id = 1, const wxString &title = wxT("TeamTranslate"),
        const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize,
        long style = wxCAPTION | wxSYSTEM_MENU | wxCLOSE_BOX | wxRESIZE_BORDER);

    virtual ~ClientTsFrm(){};
    ClientTsFrm(const  ClientTsFrm& tg) {
        std::cout << "\tSimpleCat(SimpleCat&) called\n";
    }

    void updatePanelMsg();
private:
    unsigned int curRow;            //Initialize Row index
    unsigned int curCol;            //Initialize Column index
    Session* session;
    ConfigPTR config;
    NationList *nations;
    int REFRESHTIMER = 0;
    uint64 _sclogID;
    wxTimer *WxTimer2;
    wxTimer *WxTimer1;
    wxButton *btnspeech;
    wxRichTextCtrl *txtclient;
    wxTextCtrl *txtlingua;
    wxStaticText *lbllingua;
    wxStaticText *lblnick;
    wxTextCtrl *txtnick;
    wxRichTextCtrl *txtchat;
    wxButton *btnsend;
    wxTextCtrl *txtmsg;
    wxGrid *gridchat;
    wxGrid *gridclient;
    wxBoxSizer *sizer;
    wxGridSizer *gridsizer;
    wxMenuBar *WxMenuBar1;
    wxMenu *ID_MNU_FILE_1001_Mnu_Obj;
    wxMenu *ID_MNU_OPZIONI_1004_Mnu_Obj;
    wxBitmapButton *WxBitmapButton1;
    ClientTS clientts;
};

ClientTS.cpp。这是我注册对象的方式

...
session->registerObserver(EventTS::MSG_RCV, std::bind(notifyMSG, *this));
...


 void notifyMSG(ClientTsFrm *fn)

{

    fn->updatePanelMsg();
}

基本上，我正在注册ClientTSFrm对象。它存储在会话类中，当事件发生时，会话调用＆＃34; notify＆＃34;主题类的功能。该函数调用ClientTSFrm（观察者）的函数，该函数也发送对象。最后，此函数调用ClientTSFrm类的函数以更新内容。

如果我编译，则显示此错误：

错误28错误C2664：＆＃39; void（ClientTsFrm *）＆＃39; ：无法转换参数 1来自＆＃39; ClientTsFrm＆＃39;到＆＃39; ClientTsFrm *＆＃39; C：\ Program Files （x86）\ Microsoft Visual Studio 12.0 \ VC \ include \ functional 1149 1

https://github.com/juanchopanza/cppblog/blob/master/Patterns/Observer/

如何发送此参考？

0 个答案: