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Thread: QTabBar - Stop it from collapsing when no tabs are present

  1. #1
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    Default QTabBar - Stop it from collapsing when no tabs are present

    I'm using a QTabBar widget. When the QTabBar has no more tabs in it, it collapses its height down to nothing until a new tab is added. How can I disable that?
    I want it to stay at a uniform height regardless of whether there are no tabs in it, or multiple tabs.

    I searched the documentation but can't find any info on it. I also tried to work around it by placing the QTabBar within a QWidget, and programmaticly assigning the QWidget's minimum and maximum heights to the QTabBar's height after it contains a tab and is shown, but it re-sized it too large.

    Any suggestions?

  2. #2
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    Default Re: QTabBar - Stop it from collapsing when no tabs are present

    QWidget::SetMinimumHeight() as in line 10:
    Qt Code:
    1. #include <QtGui>
    2. #include <QDebug>
    3.  
    4. class MainWindow: public QMainWindow {
    5. Q_OBJECT
    6. public:
    7. MainWindow(QWidget *p = 0): QMainWindow(p) {
    8. QWidget *central = new QWidget(this);
    9. QTabBar *tb = new QTabBar(this);
    10. tb->setMinimumHeight(50);
    11. QLabel *label1 = new QLabel("Label 1", this);
    12. QLabel *label2 = new QLabel("Label 2", this);
    13.  
    14. QVBoxLayout *layout = new QVBoxLayout(central);
    15. layout->addWidget(label1);
    16. layout->addWidget(tb);
    17. layout->addWidget(label2);
    18.  
    19. setStyleSheet("QTabBar { background: green; }"
    20. "QLabel { background: red; }");
    21.  
    22. central->setLayout(layout);
    23. setCentralWidget(central);
    24. }
    25. };
    26.  
    27. int main(int argc, char *argv[])
    28. {
    29. QApplication app(argc, argv);
    30.  
    31.  
    32. MainWindow m;
    33. m.show();
    34. return app.exec();
    35. }
    36. #include "main.moc"
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