Start changing the code equals prooblemss!!

[KillGabio]

Ok I dont seem to know why when I do this:

void MainWindow::accionFinalizada_Cancelada (QString url){
    //-----------IMAGEN CENTRAL---------
    QPixmap bg;
    if (url.contains (QString ("ya_cerramos")))
        bg = QPixmap (url);
    else{
        RandomInfo *randurl = new RandomInfo ();
        bg = QPixmap (randurl->getRandomUrl ());}
    ui->setupUi (this);
    this->ui->label_imagen->setPixmap (bg);
    this->ui->label_author->hide ();
    this->ui->label_text->hide ();
    this->ui->menuBar->show ();
}
 
void MainWindow::on_actionFacturacion_triggered()
{
    this->ui->menuBar->hide ();
    tipo_factura->exec ();
    wfact = new widgetFacturacion(this, this->handler, tipo_factura->getTipoFactura ());
    this->setCentralWidget (wfact);
    connect (wfact, SIGNAL(widgetClosed (QString )) ,this, SLOT(accionFinalizada_Cancelada(QString)));
    wfact->show ();
}

void MainWindow::accionFinalizada_Cancelada (QString url){
    //-----------IMAGEN CENTRAL---------
    QPixmap bg;
    if (url.contains (QString ("ya_cerramos")))
        bg = QPixmap (url);
    else{
        RandomInfo *randurl = new RandomInfo ();
        bg = QPixmap (randurl->getRandomUrl ());}
    ui->setupUi (this);
    this->ui->label_imagen->setPixmap (bg);
    this->ui->label_author->hide ();
    this->ui->label_text->hide ();
    this->ui->menuBar->show ();
}

void MainWindow::on_actionFacturacion_triggered()
{
    this->ui->menuBar->hide ();
    tipo_factura->exec ();
    wfact = new widgetFacturacion(this, this->handler, tipo_factura->getTipoFactura ());
    this->setCentralWidget (wfact);
    connect (wfact, SIGNAL(widgetClosed (QString )) ,this, SLOT(accionFinalizada_Cancelada(QString)));
    wfact->show ();
}

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(Seccond method triggers first)...the menuBar only works once. I mean, I can click an action for the first time. The action triggers perfecly, but then after setting the ui again, I can navigate through the menu but none of the actions is triggered...any suggestions what that can be? I dont receive any errors nor compiling nor the execution i can click the menu for an hour but nothing happens!!

[ChrisW67]

Oh my! Here are a few observations/questions to get you thinking:

• You completely rebuild the Designer Ui when you close the second window... what do you think happens to the previously allocated widgets etc.?
• When you rebuild the Ui it runs connectSlotsByName(), and dutifully connects each slot to the first matching child object with a matching signal. Which widget/action will that be? Which widget/action is the menu bar you are clicking on?
• You really need to look at QStackedWidget or hide() the main window while an independent widgetFacturacion window is shown

[KillGabio]

OH Lord!!

1) Got it, rebuild the Ui == lost previous data.
2) Yep they are being connected to the ""previous"" menuBar, that`s why I clicked and nothing happened. Im going to explain why im doing this: I have a close button (and a bunch of other label`s and widget, and of course the menuBar). When I close the widgetFacturacion ( I call the method close () ) I try to do the following operations

this->ui->menuBar->show ();
 this->ui->closeButton->show ();  // here I get SegFault

this->ui->menuBar->show ();
 this->ui->closeButton->show ();  // here I get SegFault

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with no luck. I mean, why I can show the MenuBar and not the closebutton (wich is inside a central Widget).

3) I`ll give it a read and tell you how this goes.

[ChrisW67]

BTW: Save yourself some tying and drop the "this->" which is implied anyway.

[KillGabio]

Lol, it is something I can`t get rid. At university last year they taught/obliged us to do like this with simple methods:

void MyClass::MYMethodSetsAvalue (int value){
this->value = value;
}

void MyClass::MYMethodSetsAvalue (int value){
this->value = value;
}

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so from then on Its like riding a bike :P


BTW, any thoughts of my point 2) ?

---

Added after 9 minutes:

Chris,
I tried your approach of hiding the mainWindow. The thing is that, in that case I need to execute the Widgets in another window because every form/dialog is part of the central widget of the mainWindow. I mean I like it that way, I dont want my mom to think shes opening new windows with every click :P

---

Added after 36 minutes:

Before you waste your time: QstackedWidget is the holy blessed solution As I will have only two widgets top in my stack, managing them is quite easy. I post the solution:

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    handler = -1;
    ui->menuBar->setCornerWidget(corner);
    stack_ventanas = new QStackedWidget;
    stack_ventanas->addWidget (this->ui->centralWidget);
    stack_ventanas->show ();
    this->setCentralWidget (stack_ventanas);
}
 
void MainWindow::accionFinalizada_Cancelada (QString url){
    //-----------IMAGEN CENTRAL---------
    QPixmap bg;
    if (url.contains (QString ("ya_cerramos")))
        bg = QPixmap (url);
    else{
        RandomInfo *randurl = new RandomInfo ();
        bg = QPixmap (randurl->getRandomUrl ());
    }
    this->ui->label_imagen->setPixmap (bg);
    this->ui->label_author->hide ();
    this->ui->label_text->hide ();
    if (stack_ventanas->currentIndex () != 0){
        stack_ventanas->removeWidget (stack_ventanas->widget (1));
        stack_ventanas->setCurrentIndex (0);
    }
    this->ui->menuBar->show ();
}
 
void MainWindow::on_actionFacturacion_triggered()
{
    this->ui->menuBar->hide ();
    tipo_factura->exec ();
    wfact = new widgetFacturacion(this, this->handler, tipo_factura->getTipoFactura ());
    connect (wfact, SIGNAL(widgetClosed (QString )) ,this, SLOT(accionFinalizada_Cancelada(QString)));
    stack_ventanas->addWidget (wfact);
}

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    handler = -1;
    ui->menuBar->setCornerWidget(corner);
    stack_ventanas = new QStackedWidget;
    stack_ventanas->addWidget (this->ui->centralWidget);
    stack_ventanas->show ();
    this->setCentralWidget (stack_ventanas);
}

void MainWindow::accionFinalizada_Cancelada (QString url){
    //-----------IMAGEN CENTRAL---------
    QPixmap bg;
    if (url.contains (QString ("ya_cerramos")))
        bg = QPixmap (url);
    else{
        RandomInfo *randurl = new RandomInfo ();
        bg = QPixmap (randurl->getRandomUrl ());
    }
    this->ui->label_imagen->setPixmap (bg);
    this->ui->label_author->hide ();
    this->ui->label_text->hide ();
    if (stack_ventanas->currentIndex () != 0){
        stack_ventanas->removeWidget (stack_ventanas->widget (1));
        stack_ventanas->setCurrentIndex (0);
    }
    this->ui->menuBar->show ();
}

void MainWindow::on_actionFacturacion_triggered()
{
    this->ui->menuBar->hide ();
    tipo_factura->exec ();
    wfact = new widgetFacturacion(this, this->handler, tipo_factura->getTipoFactura ());
    connect (wfact, SIGNAL(widgetClosed (QString )) ,this, SLOT(accionFinalizada_Cancelada(QString)));
    stack_ventanas->addWidget (wfact);
}

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What you have to be careful is not to set any centralWidget of the mainWindow anymore.

BTW: you can correct any spell mistakes you see (and im talking specially of what I write here, not the code ), Im here to learn QT and English Lol :P

Thank you very much for the hint on Stacked widgets, my code is pretty neat now