Fix build with -no-feature-mdiarea

qmainwindowlayout.cpp:(.text+0x2976): undefined reference to
`_q_tb_tabBarShapeFrom(QTabWidget::TabShape, QTabWidget::TabPosition)'

_q_tb_tabBarShapeFrom is implemented in qmdiarea.cpp which is not
compiled when the feature mdiarea is disabled.

Pick-to: 6.5
Change-Id: Ib0c6447b9381b8ce01542fabf831a9db7f5e6675
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

1 files changed, 14 insertions, 0 deletions

diff --git a/src/widgets/widgets/qtabwidget.cpp b/src/widgets/widgets/qtabwidget.cpp
index 89e3d59a06..8db76db7c7 100644
--- a/src/widgets/widgets/qtabwidget.cpp
+++ b/src/widgets/widgets/qtabwidget.cpp
@@ -1407,6 +1407,20 @@ void QTabWidget::clear()
         removeTab(0);
 }
 
+QTabBar::Shape _q_tb_tabBarShapeFrom(QTabWidget::TabShape shape, QTabWidget::TabPosition position)
+{
+    const bool rounded = (shape == QTabWidget::Rounded);
+    if (position == QTabWidget::North)
+        return rounded ? QTabBar::RoundedNorth : QTabBar::TriangularNorth;
+    if (position == QTabWidget::South)
+        return rounded ? QTabBar::RoundedSouth : QTabBar::TriangularSouth;
+    if (position == QTabWidget::East)
+        return rounded ? QTabBar::RoundedEast : QTabBar::TriangularEast;
+    if (position == QTabWidget::West)
+        return rounded ? QTabBar::RoundedWest : QTabBar::TriangularWest;
+    return QTabBar::RoundedNorth;
+}
+
 QT_END_NAMESPACE
 
 #include "moc_qtabwidget.cpp"