[英]Can't access private member declared in .h from .cpp
我已經聲明了一個私有變量MainWindow mainWindow;
在controller.h中,但我無法從controller.cpp訪問它
或者Controller.h
#ifndef CONTROLLER_H
#define CONTROLLER_H
#include <QMainWindow>
#include "event_manager.h"
#include "event_wrapper.h"
#include "event_list_viewer.h"
#include "main_window.h"
class Controller
{
public:
Controller();
~Controller();
static Controller &GetInstance();
MainWindow *SetupMainWindow();
private:
MainWindow mainWindow;
};
#endif // CONTROLLER_H
controller.cpp
#include "controller.h"
Controller::Controller() {}
Controller::~Controller() {}
Controller& Controller::GetInstance()
{
static Controller instance;
return instance;
}
MainWindow* SetupMainWindow()
{
bbque::EventManager *manager = &bbque::EventManager::GetInstance();
bbque::EventWrapper *wrapper = manager->Deserialize(); //get wrapper via manager
EventListViewer eventViewer;
wrapper->setParent(&eventViewer);
eventViewer = EventListViewer(wrapper, mainWindow); //cannot access mainWindow variable
return new MainWindow(eventViewer);
}
為什么?
因為MainWindow* SetupMainWindow()
是全局/獨立函數,所以不是Controller
類的成員。 您必須在controller.cpp中將成員函數聲明為MainWindow* Controller::SetupMainWindow()
。
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