unresolved external symbol "public: static struct QMetaObject const staticMetaObject"
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#ifndef CONTROLER_H #define CONTROLER_H #include <qobject.h> #include <qtimer.h> #include <qobject.h> #include "mainw.h" #include "workspace.h" class Timer :public QObject { Q_OBJECT public: Timer(long long ×etup, QObject* parent = nullptr) :QObject(parent) ,counter(new QTimer) { timereaining = ×etup; connect(counter, &QTimer::timeout, this, &Timer::sendupdate); } long long timeleft() { return *timereaining; } void start() { counter->setInterval(1000); counter->start(); } signals: void requestupdated(); void timeout(); private slots: void sendupdate() { if (*timereaining <= 0) { emit timeout(); } else { (*timereaining)--; emit requestupdated(); } } private: long long* timereaining; QTimer* counter; }; class control :public QObject { Q_OBJECT public: control(Timer* time, QObject* parent = nullptr): QObject(parent) ,timer(time) , workspace(new Workspace(timer)) , mainw(new Mainw(timer)) { /*mainw = new Mainw(timer); workspace = new Workspace(timer);*/ } ~control() { } void start() { connect(mainw, &Mainw::change_gui, this, &control::changeto_workspace_slot); connect(workspace, &Workspace::change_gui, this, &control::changeto_mainw_slot); mainw->start(); } //signals: //void changeto_mainw(); //void changeto_workspace(); private slots: void changeto_mainw_slot() { mainw->start(); workspace->close(); } void changeto_workspace_slot() { workspace->start(); mainw->close(); } private: Timer* timer; Mainw* mainw; //line 77 Workspace* workspace; }; #endif // CONTROLER_Hsorry idk how to mark that
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#ifndef CONTROLER_H #define CONTROLER_H #include <qobject.h> #include <qtimer.h> #include <qobject.h> #include "mainw.h" #include "workspace.h" class Timer :public QObject { Q_OBJECT public: Timer(long long ×etup, QObject* parent = nullptr) :QObject(parent) ,counter(new QTimer) { timereaining = ×etup; connect(counter, &QTimer::timeout, this, &Timer::sendupdate); } long long timeleft() { return *timereaining; } void start() { counter->setInterval(1000); counter->start(); } signals: void requestupdated(); void timeout(); private slots: void sendupdate() { if (*timereaining <= 0) { emit timeout(); } else { (*timereaining)--; emit requestupdated(); } } private: long long* timereaining; QTimer* counter; }; class control :public QObject { Q_OBJECT public: control(Timer* time, QObject* parent = nullptr): QObject(parent) ,timer(time) , workspace(new Workspace(timer)) , mainw(new Mainw(timer)) { /*mainw = new Mainw(timer); workspace = new Workspace(timer);*/ } ~control() { } void start() { connect(mainw, &Mainw::change_gui, this, &control::changeto_workspace_slot); connect(workspace, &Workspace::change_gui, this, &control::changeto_mainw_slot); mainw->start(); } //signals: //void changeto_mainw(); //void changeto_workspace(); private slots: void changeto_mainw_slot() { mainw->start(); workspace->close(); } void changeto_workspace_slot() { workspace->start(); mainw->close(); } private: Timer* timer; Mainw* mainw; //line 77 Workspace* workspace; }; #endif // CONTROLER_Hsorry idk how to mark that
@a_coder Btw. it is not a good idea to have more than one QObject based class in one header file - this can cause problems with moc tool.
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@a_coder Btw. it is not a good idea to have more than one QObject based class in one header file - this can cause problems with moc tool.
@jsulm i detached it before and these are my files
mainw.h#ifndef MAINW_H #define MAINW_H #include <qmainwindow.h> #include "ui_mainw.h" #include "control.h" class Timer; class control; class Mainw : public QMainWindow { Q_OBJECT public: void start(); Mainw(Timer* time, QWidget* parent = nullptr); ~Mainw(); signals: void change_gui(); private: Ui::Main* ui; Timer* timer; private slots: void updatetime(); void toworkspace() { ui->pushButton->setDisabled(true); emit change_gui(); this->close(); } }; #endif // !MAINW_Hworkspace.h
#ifndef WORKSPACE_H #define WORKSPACE_H #include <qprocess.h> #include <qmainwindow.h> #include "ui_workspace.h" #include "control.h" class Timer; class Workspace : public QWidget { Q_OBJECT public: Workspace(Timer* time, QWidget* parent = nullptr); ~Workspace(); void start(); signals: void change_gui(); private: //store all processes the ui run in a vector std::vector<QProcess*> processes; Ui::workspace* ui; Timer* timer; private slots: void updatetime(); void goback(); }; #endif // WORKSPACE_H -
@a_coder Btw. it is not a good idea to have more than one QObject based class in one header file - this can cause problems with moc tool.
@jsulm said in unresolved external symbol "public: static struct QMetaObject const staticMetaObject":
more than one QObject based class in one header file
I don't want to derail this thread, but spoke to @Chris-Kawa a while ago and we both agree we have done this for years with no problems. Maybe we just don't do something "unusual/naughty/complicated".
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@jsulm i detached it before and these are my files
mainw.h#ifndef MAINW_H #define MAINW_H #include <qmainwindow.h> #include "ui_mainw.h" #include "control.h" class Timer; class control; class Mainw : public QMainWindow { Q_OBJECT public: void start(); Mainw(Timer* time, QWidget* parent = nullptr); ~Mainw(); signals: void change_gui(); private: Ui::Main* ui; Timer* timer; private slots: void updatetime(); void toworkspace() { ui->pushButton->setDisabled(true); emit change_gui(); this->close(); } }; #endif // !MAINW_Hworkspace.h
#ifndef WORKSPACE_H #define WORKSPACE_H #include <qprocess.h> #include <qmainwindow.h> #include "ui_workspace.h" #include "control.h" class Timer; class Workspace : public QWidget { Q_OBJECT public: Workspace(Timer* time, QWidget* parent = nullptr); ~Workspace(); void start(); signals: void change_gui(); private: //store all processes the ui run in a vector std::vector<QProcess*> processes; Ui::workspace* ui; Timer* timer; private slots: void updatetime(); void goback(); }; #endif // WORKSPACE_H@a_coder said in unresolved external symbol "public: static struct QMetaObject const staticMetaObject":
#include "control.h"
class Timer;
class control;You have a circular dependency: mainw.h includes control.h and control.h includes mainw.h. This is not going to work. Since you only use Timer* in mainw.h and already have a forward declaration for it, the control.h include is not needed, remove it.
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@a_coder said in unresolved external symbol "public: static struct QMetaObject const staticMetaObject":
#include "control.h"
class Timer;
class control;You have a circular dependency: mainw.h includes control.h and control.h includes mainw.h. This is not going to work. Since you only use Timer* in mainw.h and already have a forward declaration for it, the control.h include is not needed, remove it.
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