QDialog loses OSX sheet style once QComboBox is activated



  • In my application I have a QDialog which contains a QComboBox. Whenever this QComboBox is triggered, the QDialog title bar appears and it turns into a window which can be moved around. When I hit ESC the dialog performs the closing animation of an OSX Sheet. Is there something I can do to prevent this? Is this a bug? This did not happen in Qt 4.x.

    Code for screenshots below:
    @#include <QtWidgets/qapplication.h>
    #include <QtWidgets/qmainwindow.h>
    #include <QtWidgets/qdialog.h>
    #include <QtWidgets/qgridlayout.h>
    #include <QtWidgets/qcombobox.h>

    int main(int argc, char** argv){
    QApplication app(argc, argv);

    QMainWindow* mainWindow = new QMainWindow();
    mainWindow->setWindowTitle("This is the main window");
    
    QDialog* dialog = new QDialog(mainWindow);
    mainWindow->setFixedSize(QSize(300, 100));
    mainWindow->show();
    dialog->setWindowFlags(Qt::Sheet);
    dialog->setWindowTitle("This is the dialog");
    dialog->setFixedSize(QSize(200, 70));
    QGridLayout* layout = new QGridLayout(dialog);
    dialog->setLayout(layout);
    QComboBox* combo = new QComboBox(dialog);
    combo->addItem("Item 1");
    combo->addItem("Item 2");
    combo->addItem("Item 3");
    combo->addItem("Item 4");
    layout->addWidget(combo);
    dialog->open();
    
    return app.exec();
    

    }@

    Screenshots:

    Before clicking the QComboBox
    !http://i.stack.imgur.com/EYHPX.png(Before clicking the QComboBox)!
    After clicking the QComboBox
    !http://i.stack.imgur.com/WfnJ0.png(After clicking the QComboBox)!
    The QDialog can now be moved around
    !http://i.stack.imgur.com/pioer.png(The QDialog can now be moved around)!

    Thank you!


  • Lifetime Qt Champion

    Hi and welcome to devnet,

    This sounds like a bug, you should have a look at the "bug report system":http://bugreports.qt-project.org/issues/ to check whether it has already been reported. If not, you could open a new bug report.

    Bug reported on this forum are likely to not get noticed as only few Qt developers follows it (it's more user oriented)



  • [quote author="SGaist" date="1377199446"]Hi and welcome to devnet,

    This sounds like a bug, you should have a look at the "bug report system":http://bugreports.qt-project.org/issues/ to check whether it has already been reported. If not, you could open a new bug report.

    Bug reported on this forum are likely to not get noticed as only few Qt developers follows it (it's more user oriented)[/quote]
    Ah ok, I'll do that right away.


  • Lifetime Qt Champion

    Thank you :)

    Don't forget to update this thread with a link to the bug report




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