Fix visual index lookup in QTreeViewPrivate::adjustViewOptionsForIndex().

Determine the visual index by looking up the column of the QModelIndex
in the logicalIndices array instead of looping.

Task-number: QTBUG-37813
Change-Id: I5c3c73c67537877b03cdc2c36a52041d99f7f49d
Reviewed-by: David Faure <david.faure@kdab.com>
(cherry picked from qtbase/85aef2dd4b059d2ba9cba4605d9fef87f3e2c4fc)

1 files changed, 2 insertions, 9 deletions

diff --git a/src/gui/itemviews/qtreeview.cpp b/src/gui/itemviews/qtreeview.cpp
index f506f48ac7..fdf020ee4d 100644
--- a/src/gui/itemviews/qtreeview.cpp
+++ b/src/gui/itemviews/qtreeview.cpp
@@ -1367,15 +1367,8 @@ void QTreeViewPrivate::adjustViewOptionsForIndex(QStyleOptionViewItemV4 *option,
     const int right = (spanning ? header->visualIndex(0) : header->count() - 1 );
     calcLogicalIndices(&logicalIndices, &viewItemPosList, left, right);
 
-    int columnIndex = 0;
-    for (int visualIndex = 0; visualIndex < current.column(); ++visualIndex) {
-        int logicalIndex = header->logicalIndex(visualIndex);
-        if (!header->isSectionHidden(logicalIndex)) {
-            ++columnIndex;
-        }
-    }
-
-    option->viewItemPosition = viewItemPosList.at(columnIndex);
+    const int visualIndex = logicalIndices.indexOf(current.column());
+    option->viewItemPosition = viewItemPosList.at(visualIndex);
 }