Qt 5.0 QTreeView. Prevent manual moving of the first section

This prevents the user of moving the leftmost column.

There will be no API to allow move of the tree-structure.
It is very weird to do that, so it shouldn't be a problem.

In case it is a big problem somewhere it can be hacked with:
QTableView unused;
unused.setVerticalHeader(tree->header());
tree->header()->setParent(tree);
unused.setVerticalHeader(new QHeaderView(Qt::Horizontal));

Task-number: QTBUG-332

Change-Id: I3a251c8d0fd472ec0ad7edb20a7f3e00af7e0da8
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/widgets/itemviews/qheaderview_p.h b/src/widgets/itemviews/qheaderview_p.h
index 4d9d0b8c93..7dcfcad01b 100644
--- a/src/widgets/itemviews/qheaderview_p.h
+++ b/src/widgets/itemviews/qheaderview_p.h
@@ -91,6 +91,7 @@ public:
           stretchLastSection(false),
           cascadingResizing(false),
           resizeRecursionBlock(false),
+          allowUserMoveOfSection0(true), // will be false for QTreeView and true for QTableView
           stretchSections(0),
           contentsSections(0),
           minimumSectionSize(-1),
@@ -234,6 +235,10 @@ public:
         }
     }
 
+    inline void setAllowUserMoveOfSection0(bool b) {
+        allowUserMoveOfSection0 = b;
+    }
+
     void clear();
     void flipSortIndicator(int section);
     void cascadingResize(int visual, int newSize);
@@ -274,6 +279,7 @@ public:
     bool stretchLastSection;
     bool cascadingResizing;
     bool resizeRecursionBlock;
+    bool allowUserMoveOfSection0;
     int stretchSections;
     int contentsSections;
     int defaultSectionSize;