[英]Can't access private member declared in .h from .cpp
我已经声明了一个私有变量MainWindow mainWindow;
在controller.h中,但我无法从controller.cpp访问它
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);
}
为什么?
因为MainWindow* SetupMainWindow()
是全局/独立函数,所以不是Controller
类的成员。 您必须在controller.cpp中将成员函数声明为MainWindow* Controller::SetupMainWindow()
。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.