Hide tab bar if there's only one tab.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@19746 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/src/frontends/qt4/GuiView.cpp b/src/frontends/qt4/GuiView.cpp
index 95b7ab0bf60d20ab9cb34edd388102756746a870..cb9114f1c7fbbc63691e5dbf404d1498a3eb28b2 100644 (file)
--- a/src/frontends/qt4/GuiView.cpp
+++ b/src/frontends/qt4/GuiView.cpp
@@ -121,6 +121,12 @@ private:
 };
 
 
+class TabWidget: public QTabWidget {
+public:
+       void showBar(bool show) { tabBar()->setVisible(show); }
+};
+
+
 } // namespace anon
 
 
@@ -131,7 +137,7 @@ struct GuiView::GuiViewPrivate
        int posx_offset;
        int posy_offset;
 
-       QTabWidget * tab_widget_;
+       TabWidget * tab_widget_;
        QStackedWidget * stack_widget_;
        BackgroundWidget * bg_widget_;
 
@@ -227,7 +233,7 @@ GuiView::GuiView(int id)
                setWindowIcon(QPixmap(toqstr(iconname.absFilename())));
 #endif
 
-       d.tab_widget_ = new QTabWidget;
+       d.tab_widget_ = new TabWidget;
 
        QPushButton * closeTabButton = new QPushButton(this);
        FileName const file = support::libFileSearch("images", "closetab", "xpm");
@@ -861,6 +867,8 @@ WorkArea * GuiView::addWorkArea(Buffer & buffer)
        wa->bufferView().updateMetrics(false);
        if (d.stack_widget_)
                d.stack_widget_->setCurrentWidget(d.tab_widget_);
+       // Hide tabbar if there's only one tab.
+       d.tab_widget_->showBar(d.tab_widget_->count() > 1);
        return wa;
 }
 
@@ -925,6 +933,8 @@ void GuiView::removeWorkArea(WorkArea * work_area)
        if (d.tab_widget_->count()) {
                // make sure the next work area is enabled.
                d.tab_widget_->currentWidget()->setUpdatesEnabled(true);
+               // Hide tabbar if there's only one tab.
+               d.tab_widget_->showBar(d.tab_widget_->count() > 1);
                return;
        }