SubWindow: closing tab restores previous index

SubWindow keeps track of its previous tab index, and when a tab is
closed, the previous index should be restored.

2 files changed, 9 insertions, 2 deletions

diff --git a/src/subwindow/tabwidget.cpp b/src/subwindow/tabwidget.cpp
index 6951b7b..ef15657 100644
--- a/src/subwindow/tabwidget.cpp
+++ b/src/subwindow/tabwidget.cpp
@@ -67,6 +67,12 @@ TabWidget::TabWidget(QWidget *parent)
             removeTab(i);
         }
     });
+
+    //
+    connect(this, &TabWidget::currentChanged, this, [this](int index) {
+        previous = current;
+        current = index;
+    });
 }
 
 TabWidget::~TabWidget()
@@ -117,6 +123,7 @@ void TabWidget::removeTab(int index)
         m_closedTabs.dequeue();
     }
 
+    setCurrentIndex(previous);
     QTabWidget::removeTab(index);
     delete w;
 }
diff --git a/src/subwindow/tabwidget.h b/src/subwindow/tabwidget.h
index d615bcb..d67d2de 100644
--- a/src/subwindow/tabwidget.h
+++ b/src/subwindow/tabwidget.h
@@ -45,9 +45,9 @@ protected:
     void contextMenuEvent(QContextMenuEvent *event) override;
     void mousePressEvent(QMouseEvent *event) override;
 
-
-
 private:
+    int current = -1;
+    int previous = -1;
     QMenu *tabContextMenu;
     QQueue<TabInformation> m_closedTabs;
 };