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&#40;"messagebox.css"&#41;;
styleFile.open(QFile::ReadOnly&#41;;
QString style(styleFile.readAll(&#41;);

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:

Created a higher level widget that was transparent and set the size to the entire screen.
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:

Created a higher level widget that was transparent and set the size to the entire screen.
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 ?