Merge branch '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2 into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2: (27 commits)
  Fix the doc for QFrame::frameStyle
  Don't use texture-from-pixmap if the target isn't GL_TEXTURE_2D
  Add runtime check for GLX >= 1.3 before using glXCreatePixmap
  QDrawHelper: Reduce code duplications
  Improve matching X11 VisualIDs to EGL configs
  Remove obsolete function set_winapp_name()
  Speedup fetchTransformedBilinear in the fast_matrix case
  Allow y-interted pixmaps for brushes in GL2 paint engine
  Build fix for mingw
  Fix build with mingw (64 bit)
  Make configure.exe compatible with mingw 64
  Adjust indentation
  e-Ink support cleanup
  Tweak the display update IOCTL calls
  Support 8-Track e-Ink devices
  Get stride from LinuxFB instead of calculating it ourselves.
  Use DIR_SEPARATOR when setting up variables for RCC and UIC in features.
  Fixed bug in QPainterPath::intersected().
  Fix compile error with QT_NO_ANIMATION
  O(n^2) to O(n) optimization in QTreeWidget::selectedItems()
  ...

2 files changed, 9 insertions, 1 deletions

diff --git a/src/gui/itemviews/qtreeview.cpp b/src/gui/itemviews/qtreeview.cpp
index d934683..c3ff2bd 100644
--- a/src/gui/itemviews/qtreeview.cpp
+++ b/src/gui/itemviews/qtreeview.cpp
@@ -3194,12 +3194,16 @@ void QTreeViewPrivate::layout(int i, bool recursiveExpanding, bool afterIsUninit
 int QTreeViewPrivate::pageUp(int i) const
 {
     int index = itemAtCoordinate(coordinateForItem(i) - viewport->height());
+    while (isItemHiddenOrDisabled(index))
+        index--;
     return index == -1 ? 0 : index;
 }
 
 int QTreeViewPrivate::pageDown(int i) const
 {
     int index = itemAtCoordinate(coordinateForItem(i) + viewport->height());
+    while (isItemHiddenOrDisabled(index))
+        index++;
     return index == -1 ? viewItems.count() - 1 : index;
 }
 
diff --git a/src/gui/itemviews/qtreewidget.cpp b/src/gui/itemviews/qtreewidget.cpp
index 19ed10b..4c80325 100644
--- a/src/gui/itemviews/qtreewidget.cpp
+++ b/src/gui/itemviews/qtreewidget.cpp
@@ -3039,10 +3039,14 @@ QList<QTreeWidgetItem*> QTreeWidget::selectedItems() const
     Q_D(const QTreeWidget);
     QModelIndexList indexes = selectionModel()->selectedIndexes();
     QList<QTreeWidgetItem*> items;
+    items.reserve(indexes.count());
+    QSet<QTreeWidgetItem *> seen;
+    seen.reserve(indexes.count());
     for (int i = 0; i < indexes.count(); ++i) {
         QTreeWidgetItem *item = d->item(indexes.at(i));
-        if (isItemHidden(item) || items.contains(item)) // ### slow, optimize later
+        if (isItemHidden(item) || seen.contains(item))
             continue;
+        seen.insert(item);
         items.append(item);
     }
     return items;