How to close all Dialogs opened on my app on exit...

dcbasso

Well I need to close all QDialogs opened in my application on exit!
But some of this Dialogs still open after close the application...
Have some Dialog that I can set the "QWidget *parent", but someone I can't do that, because I show the Dialog in class extended from QObject!

How can I make all open QDIalogs close?!

Thanks

sierdzio

[quote author="dcbasso" date="1355573304"]but someone I can't do that, because I show the Dialog in class extended from QObject![/quote]

This is stange. You should still be able to assign a parent. And if it's really impossible, then store pointers to all rouge QDialogs you have and destroy them on qApp->quit().

dcbasso

I can't because the QObject is not QWidget, and the Constructor of QDialog, the parent is "QWidget", so inside the QOBject I could not set the parent!

I have a Factory to build and show this Dialogs... as you can see here:

@
#include "caixadialogo.h"
#include "singletonsession.h"

CaixaDialogo::CaixaDialogo(QObject parent) :
QObject(parent)
{
}
QMessageBox CaixaDialogo::getConfiguradoComSucesso(QString mensagem, QWidget parent)
{
QMessageBox msgBox = new QMessageBox( parent );
msgBox->setText( mensagem.toAscii() );
msgBox->setIcon(QMessageBox::Information);
return msgBox;
}
QMessageBox* CaixaDialogo::getErroAoConfigurar(QString mensagem, QWidget parent)
{
QMessageBox msgBox = new QMessageBox( parent );
msgBox->setText( mensagem.toAscii() );
msgBox->setIcon(QMessageBox::Warning);
return msgBox;
}
QMessageBox* CaixaDialogo::getMensagemSucesso(QString mensagem, QWidget parent)
{
QMessageBox msgBox = new QMessageBox( parent );
msgBox->setText( mensagem.toAscii() );
msgBox->setIcon(QMessageBox::Information);
return msgBox;
}
QMessageBox* CaixaDialogo::getMensagemErro(QString mensagem, QWidget parent)
{
QMessageBox msgBox = new QMessageBox( parent );
msgBox->setText( mensagem.toAscii() );
msgBox->setIcon(QMessageBox::Warning);
return msgBox;
}
QMessageBox* CaixaDialogo::getMensagemAviso(QString mensagem, QWidget parent)
{
QMessageBox msgBox = new QMessageBox( parent );
msgBox->setText( mensagem.toAscii() );
return msgBox;
}
@

sierdzio

Ugh, code is not in English. Ok, then. Either use the factory to delete all dialogs, or - say - make your main window into a singleton, and then assign that singleton as parent to all those widgets.

QMartin

Hello

I think you could achieve it by the SLOT closeAllWindows(). In your main application when accepting closeEvent, just call closeAllWindows(), maybe that could work.

@void yourApplication::closeEvent(QCloseEvent *event)
{
closeAllWindows();
event->accept();
}@

Nevertheless take a look to "this documentation on closeEvent":http://qt-project.org/doc/qt-4.8/qcloseevent.html

Good luck!

MuldeR

bq. Have some Dialog that I can set the “QWidget *parent”, but someone I can’t do that, because I show the Dialog in class extended from QObject!

Dialog without parent is not a good idea. If you derive your own class from QObject and an instance of that class is going to create a QDialog, nothing is holding you from adding a member variable of type "QWidget*" to your class to store the pointer to the parent dialog. So when the instance of your class (derived from QObject) is created, pass the parent pointer in constructor or via a separate setParentWidget(QWidtget *ptr)". Then, when the QDialog is created, use the pointer you stored before as the parent. And if you don't like this solution for whatever reason, you can still use "qApp()->activeWindow()" as parent for your QDialog...

@class MyClass : public QObject
{
public:
MyClass(QWidget *ptr)
{
m_parent = ptr;
}

private:
QWidget *m_parent;

void showDialog(void)
{
    QDialog myDlg = new QDialog(m_parent);
    myDlg->exec(&#41;;
}

};@