Details
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Suggestion
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Resolution: Unresolved
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Not Evaluated
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Description
In QMainWindow, tabifyDockWidget can be used to create a QTabBar for QDockWidgets.
mainWindow->tabifyDockWidget(target, this);
Access to the tab is currently a member (tabBar) in a private class and used here, for example
QList<QDockWidget*> QMainWindow::tabifiedDockWidgets(QDockWidget *dockwidget) const { QList<QDockWidget*> ret; const QDockAreaLayoutInfo *info = d_func()->layout->layoutState.dockAreaLayout.info(dockwidget); if (info && info->tabbed && info->tabBar) { for(int i = 0; i < info->item_list.count(); ++i) { const QDockAreaLayoutItem &item = info->item_list.at(i); if (item.widgetItem) { if (QDockWidget *dock = qobject_cast<QDockWidget*>(item.widgetItem->widget())) { if (dock != dockwidget) { ret += dock; } } } } } return ret; }
I would like access to this tab bar exposed in QMainWindow as a public function.
QTabBar *getTabBar(QDockWidget *dockwidget);
I would then be able to connect to the signals from the tab to receive notifications when a tab is selected.
connect(_tabBar, &QTabBar::currentChanged, this, &AlbumManager::onCurrentChanged);
Using this, I can create dockable tabs and know when they are selected.
Please add this function to QMainWindow so we can get signals from the dockable widgets tab bar.
QTabBar *QMainWindow::getTabBar(QDockWidget *dockwidget)
{
QMainWindowLayout *windowLayout = qt_mainwindow_layout(this);
if (!windowLayout) { return nullptr; }
QDockAreaLayout *dockAreaLayout = windowLayout->dockAreaLayoutInfo();
if (!dockAreaLayout) { return nullptr; }
const QDockAreaLayoutInfo *info = dockAreaLayout->info(dockwidget);
if (info && info->tabbed) { return info->tabBar; }
return nullptr;
}
Better would be if QMainWindow adds setTabBar to user QTabBar as base clases.
A full class that implemented tabbed QDockWidgets would be even better, since I am limited to using QMainWindow to get this functionality.