QWidget Modal

[f3tz3r]

I'm running QT Embedded on OpenSuse linux through the frambuffer, so no x windows. This is also being ran on a 15in touch screen unit.

My goal:
To instantiate a class that requires interaction before further process. A Modal window would be ideal.

My problem:
Ideally i'd like to use QDialog, remove the title bar and all its buttons, and put a custom border on it; however, every flag combination i've tried doesn't give me the desired effect.

When i do the following:
@this->setWindowFlags( Qt::CustomizeWindowHint | Qt::Dialog);@

I sort of get what i want. The title bar is removed, but there is no border replacing it. In essence, i now have a dialog with a left, bottom, and right blue border.

I've also tried using CSS to style the CDialog to no avail. The following is the CSS that i attempted:
@QDialog{
border-width: 5px;
border-color: black;
}
@

I've now gone to attempting to do this with a QWidget. After about an hour of researching, it looks like i cant make the QWidget be modal.

If anyone has an idea for this, it would be greatly appreciated.

[SGaist]

Hi and welcome to devnet,

Are you showing your widget full screen ?

[f3tz3r]

No, the widget isn't full screen. With the current widget implementation, I don't even see the widget. I believe this is because the code doesn't pause execution while the widget is shown.

[SGaist]

Can you show the implementation ?

[f3tz3r]

I think this is all of it. If there is something blaringly wrong, let me know. I'm going back and forth trying to get this to work.

This morning i had the idea to use the QDialog again. Instead of using the QDialog as a QGridLayout parent, i turned the hierarchy like this: QDialog -> QFrame -> QGridLayout.

This implementation looked like the QFrame was inheriting the window flags from QDialog as i couldn't set a border on the QFrame.

mainwindow.cpp:

@void MainWindow::on_button_clicked(){

MessageBox confirmationDialog(this);

confirmationDialog.show();

}
@

messagebox.h:

@
class MessageBox : public QWidget
{
Q_OBJECT
public:
QLabel _title;

explicit MessageBox(QWidget *parent = 0);
void setButtonMode(int mode);
void setupLayout(int mode);

signals:

public slots:

};

@

messagebox.cpp
@

MessageBox::MessageBox(QWidget *parent) : QWidget(parent), _layout(this){

this->setWindowModality(Qt::WindowModal);

this->setButtonMode(2);

this->setupLayout(2);

}

void MessageBox::setButtonMode(int mode){

switch(mode){
case 1:
    //QObject::connect(&this->_okButton, SIGNAL(clicked()), this, SLOT(accept()));
    break;
case 2:
    //QObject::connect(&this->_saveButton, SIGNAL(clicked()), this, SLOT(accept()));
    //QObject::connect(&this->_cancelButton, SIGNAL(clicked()), this, SLOT(accept()));
    break;
default:
}

}

void MessageBox::setupLayout(int mode){

QFile styleFile("messagebox.css");
styleFile.open(QFile::ReadOnly);
QString style(styleFile.readAll());

this->setStyleSheet(style);

switch(mode){
case 1:
    break;
case 2:

    this->_title.setText("Confirm new prices");
    this->_title.setStyleSheet("font-weight:24pt;");

    this->_layout.addWidget(&this->_title, 1, 1);


    break;
default:
    break;
}

}

@

messagebox.css:
@QWidget{
border-width: 5px;
border-color: black;
}
@

[SGaist]

@
void MainWindow::on_button_clicked(){
MessageBox confirmationDialog(this);
confirmationDialog.show();
} << confirmationDialog is destroyed here
@

So either use exec or allocate it on the heap

[f3tz3r]

Sorry for the late response. I did get this to function as i desired. Here are the steps that i took:

1. Created a higher level widget that was transparent and set the size to the entire screen.
2. Created my messagebox as a child of the full screen widget.

With this implementation, nothing in the background could be touched, but any buttons on the message box worked

[f3tz3r]

Sorry for the late response. I did get this to function as i desired. Here are the steps that i took:

1. Created a higher level widget that was transparent and set the size to the entire screen.
2. Created my messagebox as a child of the full screen widget.

With this implementation, nothing in the background could be touched, but any buttons on the message box worked

[SGaist]

Wasn't the call to exec enough ?

[SGaist]

Wasn't the call to exec enough ?