setStyleSheet not working

[neel5481]

Hi All,

I want to set the fixed height and width of QTabWidget's tab but we have observed that setStyleSheet() function is not working in Mac OS Yosemite and it is working perfectly in Linux Ubuntu.

#include <QtWebKitWidgets>
#include <QMessageBox>
#include <QUrl>
#include <QMainWindow>
#include <QTabWidget>
 
QWebView     *m_mainWebView;
 
QGridLayout  *m_tabGridLayout;
QGridLayout  *m_mainGridLayout;
QTabWidget    *m_tabWidget;
QWidget      *m_MainTab;
 
class  myMainWindow:public QMainWindow
{
 public:
     myMainWindow():QMainWindow()
     {
        QUrl name("www.google.com");
        m_tabWidget = new QTabWidget(this);
        m_mainGridLayout = new QGridLayout(m_tabWidget);
        m_mainGridLayout->setContentsMargins(0, 0, 0, 0);
        m_MainTab = new QWidget(m_tabWidget);
        m_tabGridLayout = new QGridLayout(m_MainTab);
        m_tabGridLayout->setContentsMargins(0, 0, 0, 0);
        m_mainWebView = new QWebView(m_MainTab);
 
        m_tabGridLayout->addWidget(m_mainWebView, 0, 0, 1, 1);
        m_tabWidget->addTab(m_MainTab, QString());
        m_tabWidget->setCurrentIndex(0);
        m_tabWidget->setTabText(0, "My Customized Tab");
        m_tabWidget->setStyleSheet("QTabBar::tab{max-height:100px;max-width:300px;}");
 
        setCentralWidget(m_tabWidget);
 
        m_mainWebView->setUrl(name);
     };
     ~myMainWindow(){};
};
 
int main(int argc, char **argv)
{
    QApplication app(argc, argv);
    myMainWindow *window = new myMainWindow();
 
    window->resize(400, 400);
    window->setWindowTitle("QTabWidget - Style Testing");
    window->show();
    return app.exec();
}

#include <QtWebKitWidgets>
#include <QMessageBox>
#include <QUrl>
#include <QMainWindow>
#include <QTabWidget>

QWebView     *m_mainWebView;

QGridLayout  *m_tabGridLayout;
QGridLayout  *m_mainGridLayout;
QTabWidget    *m_tabWidget;
QWidget      *m_MainTab;

class  myMainWindow:public QMainWindow
{
 public:
     myMainWindow():QMainWindow()
     {
        QUrl name("www.google.com");
        m_tabWidget = new QTabWidget(this);
        m_mainGridLayout = new QGridLayout(m_tabWidget);
        m_mainGridLayout->setContentsMargins(0, 0, 0, 0);
        m_MainTab = new QWidget(m_tabWidget);
        m_tabGridLayout = new QGridLayout(m_MainTab);
        m_tabGridLayout->setContentsMargins(0, 0, 0, 0);
        m_mainWebView = new QWebView(m_MainTab);

        m_tabGridLayout->addWidget(m_mainWebView, 0, 0, 1, 1);
        m_tabWidget->addTab(m_MainTab, QString());
        m_tabWidget->setCurrentIndex(0);
        m_tabWidget->setTabText(0, "My Customized Tab");
        m_tabWidget->setStyleSheet("QTabBar::tab{max-height:100px;max-width:300px;}");

        setCentralWidget(m_tabWidget);

        m_mainWebView->setUrl(name);
     };
     ~myMainWindow(){};
};

int main(int argc, char **argv)
{
    QApplication app(argc, argv);
    myMainWindow *window = new myMainWindow();

    window->resize(400, 400);
    window->setWindowTitle("QTabWidget - Style Testing");
    window->show();
    return app.exec();
}

To copy to clipboard, switch view to plain text mode 

Above code is not working in Mac OS Yosemite but working in Linux Ubuntu.

Is there any other way to set the fix height and width of QTabWidget's tabBar ?

Thanks in Advance

[anda_skoa]

Have you tried

m_tabWidget->tabBar()->setFixedSize(...);

m_tabWidget->tabBar()->setFixedSize(...);

To copy to clipboard, switch view to plain text mode 

?

Cheers,
_

[neel5481]

Yes , I have tried that it will not work because tabBar() returns the const * so you will not change the height and width.
I have resolved the problem by overriding the QTabBar class and override the tabSizeHint method which will fix the issue.

Thanks for the reply.

[anda_skoa]

Interesting, the documentation claims that the return value of tabBar() is QTabBar*, without any const: http://doc.qt.io/qt-5/qtabwidget.html#tabBar

Cheers,
_