How to change the menubar after log in as super user.

Hello, I am writing an app which after the main window shows it has a menubar with the option to connect, with a "super" user which has some adittional menus/actions.
The thing is that I have different classes for different menubars and another class for creating the dialog.
The issue is that I cannot figure it out how to actually change the menubar.
Here is the main window header file:

Code:

---

#ifndef CAMER_H
#define CAMER_H
 
#include <QMainWindow>
#include <QSettings>
#include <QDialog>
#include <QDialogButtonBox>
#include <QLabel>
#include <QLineEdit>
#include <QGridLayout>
#include <QPushButton>
namespace Ui {
class camer;
}
 
class camer : public QMainWindow
{
    Q_OBJECT
 
public:
    explicit camer(QWidget *parent = 0);
    ~camer();
    void setMeniuAdmin();
    void setMeniuNeaut();
private:
    Ui::camer *ui;    
private slots:
    void creareDialogConect();
public slots:    
};
 
#endif // CAMER_H

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here is the main window cpp file:

Code:

---

#include "camer.h"
#include "conn.h"
#include "FerDialConect.h"
#include "meniuNeautentificat.h"
#include "meniuAdmin.h"
camer::camer(QWidget *parent):QMainWindow(parent){
    setMinimumSize(800,600);
    setMeniuNeaut();
}
 
camer::~camer()
{
    //settings saving function goes here
}
 
 
void camer::creareDialogConect(){
    FerDialConect *fdc=new FerDialConect(this);
    fdc->afisDial();
}
 
void camer::setMeniuNeaut(){
    menNeaut *mn=new menNeaut(this);
    setMenuBar(mn);
}
 
void camer::setMeniuAdmin(){
    MeniuAdmin *mad=new MeniuAdmin(this);
    setMenuBar(mad);
}

---

here are the dialog header and cpp files:

Code:

---

#ifndef FERDIALCONECT_H
#define FERDIALCONECT_H
#include <QDialog>
#include <QGridLayout>
#include <QLabel>
#include <QLineEdit>
#include <QDialogButtonBox>
#include <QMessageBox>
#include <QPushButton>
#include "camer.h"
class FerDialConect:public camer{
    Q_OBJECT
public:
    explicit FerDialConect(camer *parent = 0);
    void afisDial();
    QString util,parola;
private:    
    QGridLayout *amplasareDialCon,*amplasareDialCon1,*amplasareDialCon2;
    QLabel *etUtil,*etPar;
    QLineEdit *txtUtil,*txtPar;
    QPushButton *bCon,*bAnul;
    QDialogButtonBox *cutieButCon;
    QDialog *dialogConect;
private slots:
    void con();
};
 
#endif // FERDIALCONECT_H

---

Code:

---

#include "FerDialConect.h"
#include "meniuAdmin.h"
 
FerDialConect::FerDialConect(camer *parent):camer(parent){
    dialogConect=new QDialog(this);
    amplasareDialCon=new QGridLayout;
    amplasareDialCon1=new QGridLayout;
    amplasareDialCon2=new QGridLayout;
    etUtil=new QLabel(tr("Utilizator"));
    etPar=new QLabel(tr("Parola"));
    txtUtil=new QLineEdit(util);
    txtPar=new QLineEdit(parola);
    txtPar->setEchoMode(QLineEdit::Password);
    cutieButCon=new QDialogButtonBox;
    cutieButCon->setOrientation(Qt::Horizontal);
    bCon=new QPushButton(tr("Conectare"));
    bAnul=new QPushButton(tr("Anulare"));
    cutieButCon->addButton(bCon,QDialogButtonBox::AcceptRole);
    cutieButCon->addButton(bAnul,QDialogButtonBox::RejectRole);
    connect(cutieButCon,SIGNAL(rejected()),dialogConect,SLOT(reject()));
    connect(cutieButCon,SIGNAL(accepted()),this,SLOT(con()));
    amplasareDialCon->addLayout(amplasareDialCon1,0,0);
    amplasareDialCon->addLayout(amplasareDialCon2,1,0);
    amplasareDialCon1->addWidget(etUtil,0,0);
    amplasareDialCon1->addWidget(txtUtil,0,1);
    amplasareDialCon1->addWidget(etPar,1,0);
    amplasareDialCon1->addWidget(txtPar,1,1);
    amplasareDialCon2->addWidget(cutieButCon,0,0);
}
 
void FerDialConect::afisDial(){
    dialogConect->setLayout(amplasareDialCon);
    dialogConect->setFixedSize(300,200);
    dialogConect->exec();
}
 
void FerDialConect::con(){
    util=txtUtil->text();
    int marimeUtil=util.size();
    parola=txtPar->text();
    int marimePar=parola.size();
    if(marimeUtil==0 && marimePar!=0){
        QMessageBox::critical(this, tr("Eroare"), tr("Campul de utilizator este necompletat."));
        return;
    }
    else if(marimeUtil!=0 && marimePar==0){
        QMessageBox::critical(this, tr("Eroare"), tr("Campul de parola este necompletat."));
        return;
    }
    else if(marimeUtil==0 && marimePar==0){
        QMessageBox::critical(this, tr("Eroare"), tr("Campurile sunt necompletate."));
        return;
    }
    else {
        if(util=="admin" && parola=="camer"){
            dialogConect->accept();
            camer::setMeniuAdmin();
        }
 
    }
}

---

here is the default menubar files:

Code:

---

#ifndef MENIUNEAUTENTIFICAT_H
#define MENIUNEAUTENTIFICAT_H
#include <QMenuBar>
#include <QMenu>
#include <QAction>
#include "camer.h"
 
class menNeaut:public QMenuBar{
    Q_OBJECT
public:
    explicit menNeaut(camer *parent=0);
private:
    QMenu *meniuStandard;
    QAction *conectare,*inchideApp;
private slots:
};
 
#endif // MENIUNEAUTENTIFICAT_H

---

Code:

---

#include "meniuNeautentificat.h"
menNeaut::menNeaut(camer *parent):QMenuBar(parent){
    meniuStandard=new QMenu("Meniu");
    conectare=new QAction(tr("Conectare"),this);
    connect(conectare,SIGNAL(triggered()),parent,SLOT(creareDialogConect()));
    inchideApp=new QAction(tr("Inchide"),this);
    connect(inchideApp,SIGNAL(triggered()),parent,SLOT(inchideApplicatie()));
    meniuStandard->addAction(conectare);
    meniuStandard->addAction(inchideApp);
    addMenu(meniuStandard);
}

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here are the files for the second menu(its just a basic setup):

Code:

---

#ifndef MENIUADMIN_H
#define MENIUADMIN_H
#include <QMenuBar>
#include "camer.h"
#include <QMenu>
#include <QAction>
 
class MeniuAdmin:public QMenuBar{
    Q_OBJECT
public:
    explicit MeniuAdmin(camer *parent=0);
private:
    QMenu *meniu;
    QAction *dateP;
private slots:
};
 
#endif // MENIUADMIN_H

---

Code:

---

#include "meniuAdmin.h"
MeniuAdmin::MeniuAdmin(camer *parent):QMenuBar(parent){
    meniu=new QMenu(tr("Meniu"),this);
    dateP=new QAction(tr("Date Personale"),this);
    meniu->addAction(dateP);
    addMenu(meniu);
}

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I have no idea what your actual problem is, but you have same very strange code in FerDialConect::con()

Code:

---

if(util=="admin" && parola=="camer"){
    dialogConect->accept();
    camer c;
    c.setMeniuAdmin();
}

---

This creates a new "camer" main window, tells it to show the admin menu and then destroys it (camer goes out of scope).
It also calls accept() on another dialog.

Cheers,
_

I am trying to use

Code:

---

camer::setMeniuAdmin()

---

,

Code:

---

dialogConect->accept()

---

is called because I created it inside FerDialConect class(because I made it a child of camer class).

I've changed my code from

Code:

---

camer c;
c.setMeniuAdmin();

---

to

Code:

---

camer::setMeniuAdmin()

---

but still no response as I get cannot call void camer::setMeniuAdmin without object.

Quote:

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Originally Posted by adutzu89

Code:

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dialogConect->accept()

---

is called because I created it inside FerDialConect class(because I made it a child of camer class).

---

I see. Usually a dialog is implemented inside its own class and simply use from elsewhere.

Quote:

---

Originally Posted by adutzu89

I've changed my code from

Code:

---

camer c;
c.setMeniuAdmin();

---

to

Code:

---

camer::setMeniuAdmin()

---

but still no response as I get cannot call void camer::setMeniuAdmin without object.

---

This is strange, the class FerDialConect is derived from camer so that should work. Try just the method

Code:

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setMeniuAdmin();

---

Cheers,
_

Thank you for taking the time to help, it does not work with no error whatsoever, not even at runtime.
I've tried even connecting signals of

Code:

---

accept()

---

and

Code:

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reject()

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buttons from dialog to

Code:

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setMeniuAdmin()

---

(after moving the function to public slots).
The function works as I made a central widget,added 2 butons to switch between the menubars but that was only in camer class.
It must be my parent-child relationship, but I cannot figure it out.

You could make a ZIP file of your project and attach it.

Cheers,
_

Ok I will uploaded it. Thank you.
PS: There are some elements that I added to test functionality in camer.cpp. And didn't had time to clean the project before uploading it, have a exam that I need to go, also the I am using Qt 5.2.

First check if you really want FerDialConect to be of type "camer", i.e. a main window.
The slot that creates it is called creareDialogConect which would indicate that FerDialConect is a dialog.

If you want to change the menu of the camer instance that is created in main(), then you have to call its setMeniuAdmin().

For example after fdc->afisDial() returns or, after making setMeniuAdmin() a slot, have FerDialConect emit a signal and connect it to the setMeniuAdmin().

Cheers,
_

Quote:

---

Originally Posted by anda_skoa

First check if you really want FerDialConect to be of type "camer", i.e. a main window.
The slot that creates it is called creareDialogConect which would indicate that FerDialConect is a dialog.

If you want to change the menu of the camer instance that is created in main(), then you have to call its setMeniuAdmin().

For example after fdc->afisDial() returns or, after making setMeniuAdmin() a slot, have FerDialConect emit a signal and connect it to the setMeniuAdmin().

Cheers,
_

---

Changed the FerDialConect from type "camer" to dialog(as it was originally, I've just tried multiple "solutions" that came to mind).

I've made setMeniuAdmin() a slot, made a signal that would emit after the condition was met and conected them using

Code:

---

camer c;
connect(this,SIGNAL(semnalSuper()),&c,SLOT(setMeniuAdmin()));

---

where semnalSuper is the signal created inside FerDialconect class.
But again nothing.
Tell me am I connecting it wrong?
I've tried also connecting using the "newer" connecting method:

Code:

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connect(this,&FerDialConect::semnalSuper,&c,&camer::setMeniuAdmin);

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The signal emits, as I tried creating a test slot inside FerDialConect which showed a QMessageBox when the signal is emited and works.

I will try remaking this test with QMessageBox with slot beeing in camer class, to see if it works.

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Added after 44 minutes:

Finally solved it by connecting from creareDialogConect() and not from FerDialCon constructor how I usually connected, after creating the dialog.

Thank you for all your help.

Your other attempt didn't work because you were connecting to a local instance of camer. It went out of scope as soon as your dialog's constructor ended.

Cheers,
_