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:
  Fix a problem with the selection losing items when layout is changed
  refactor connections/disconnections in QItemSelectionModel
  small little change to the initialization of item views
  disable copy of QPainterPathStroker as its not copiable.
  Added warnings on non-created buffer in QGLBuffer

3 files changed, 31 insertions, 63 deletions

diff --git a/src/gui/itemviews/qabstractitemview.cpp b/src/gui/itemviews/qabstractitemview.cpp
index 0f99949..a4722f7 100644
--- a/src/gui/itemviews/qabstractitemview.cpp
+++ b/src/gui/itemviews/qabstractitemview.cpp
@@ -104,7 +104,7 @@ QAbstractItemViewPrivate::QAbstractItemViewPrivate()
         horizontalScrollMode(QAbstractItemView::ScrollPerItem),
         currentIndexSet(false),
         wrapItemText(false),
-        delayedPendingLayout(false)
+        delayedPendingLayout(true)
 {
 }
 
@@ -131,8 +131,6 @@ void QAbstractItemViewPrivate::init()
 
     viewport->setBackgroundRole(QPalette::Base);
 
-    doDelayedItemsLayout();
-
     q->setAttribute(Qt::WA_InputMethodEnabled);
 
 #ifdef QT_SOFTKEYS_ENABLED
diff --git a/src/gui/itemviews/qitemselectionmodel.cpp b/src/gui/itemviews/qitemselectionmodel.cpp
index cab002e..d6e68f6 100644
--- a/src/gui/itemviews/qitemselectionmodel.cpp
+++ b/src/gui/itemviews/qitemselectionmodel.cpp
@@ -527,6 +527,27 @@ void QItemSelection::split(const QItemSelectionRange &range,
     }
 }
 
+
+void QItemSelectionModelPrivate::initModel(QAbstractItemModel *model)
+{
+    this->model = model;
+    if (model) {
+        Q_Q(QItemSelectionModel);
+        QObject::connect(model, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)),
+                q, SLOT(_q_rowsAboutToBeRemoved(QModelIndex,int,int)));
+        QObject::connect(model, SIGNAL(columnsAboutToBeRemoved(QModelIndex,int,int)),
+                q, SLOT(_q_columnsAboutToBeRemoved(QModelIndex,int,int)));
+        QObject::connect(model, SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)),
+                q, SLOT(_q_rowsAboutToBeInserted(QModelIndex,int,int)));
+        QObject::connect(model, SIGNAL(columnsAboutToBeInserted(QModelIndex,int,int)),
+                q, SLOT(_q_columnsAboutToBeInserted(QModelIndex,int,int)));
+        QObject::connect(model, SIGNAL(layoutAboutToBeChanged()),
+                q, SLOT(_q_layoutAboutToBeChanged()));
+        QObject::connect(model, SIGNAL(layoutChanged()),
+                q, SLOT(_q_layoutChanged()));
+    }
+}
+
 /*!
     \internal
 
@@ -793,6 +814,10 @@ static QItemSelection mergeIndexes(const QList<QPersistentModelIndex> &indexes)
         while (++i < colSpans.count()) {
             QModelIndex nextTl = colSpans.at(i).topLeft();
             QModelIndex nextBr = colSpans.at(i).bottomRight();
+
+            if (nextTl.parent() != tl.parent())
+                break; // we can't merge selection ranges from different parents
+
             if ((nextTl.column() == prevTl.column()) && (nextBr.column() == br.column())
                 && (nextTl.row() == prevTl.row() + 1) && (nextBr.row() == br.row() + 1)) {
                 br = nextBr;
@@ -890,21 +915,7 @@ void QItemSelectionModelPrivate::_q_layoutChanged()
 QItemSelectionModel::QItemSelectionModel(QAbstractItemModel *model)
     : QObject(*new QItemSelectionModelPrivate, model)
 {
-    d_func()->model = model;
-    if (model) {
-        connect(model, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)),
-                this, SLOT(_q_rowsAboutToBeRemoved(QModelIndex,int,int)));
-        connect(model, SIGNAL(columnsAboutToBeRemoved(QModelIndex,int,int)),
-                this, SLOT(_q_columnsAboutToBeRemoved(QModelIndex,int,int)));
-        connect(model, SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)),
-                this, SLOT(_q_rowsAboutToBeInserted(QModelIndex,int,int)));
-        connect(model, SIGNAL(columnsAboutToBeInserted(QModelIndex,int,int)),
-                this, SLOT(_q_columnsAboutToBeInserted(QModelIndex,int,int)));
-        connect(model, SIGNAL(layoutAboutToBeChanged()),
-                this, SLOT(_q_layoutAboutToBeChanged()));
-        connect(model, SIGNAL(layoutChanged()),
-                this, SLOT(_q_layoutChanged()));
-    }
+    d_func()->initModel(model);
 }
 
 /*!
@@ -913,21 +924,7 @@ QItemSelectionModel::QItemSelectionModel(QAbstractItemModel *model)
 QItemSelectionModel::QItemSelectionModel(QAbstractItemModel *model, QObject *parent)
     : QObject(*new QItemSelectionModelPrivate, parent)
 {
-    d_func()->model = model;
-    if (model) {
-        connect(model, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)),
-                this, SLOT(_q_rowsAboutToBeRemoved(QModelIndex,int,int)));
-        connect(model, SIGNAL(columnsAboutToBeRemoved(QModelIndex,int,int)),
-                this, SLOT(_q_columnsAboutToBeRemoved(QModelIndex,int,int)));
-        connect(model, SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)),
-                this, SLOT(_q_rowsAboutToBeInserted(QModelIndex,int,int)));
-        connect(model, SIGNAL(columnsAboutToBeInserted(QModelIndex,int,int)),
-                this, SLOT(_q_columnsAboutToBeInserted(QModelIndex,int,int)));
-        connect(model, SIGNAL(layoutAboutToBeChanged()),
-                this, SLOT(_q_layoutAboutToBeChanged()));
-        connect(model, SIGNAL(layoutChanged()),
-                this, SLOT(_q_layoutChanged()));
-    }
+    d_func()->initModel(model);
 }
 
 /*!
@@ -936,21 +933,7 @@ QItemSelectionModel::QItemSelectionModel(QAbstractItemModel *model, QObject *par
 QItemSelectionModel::QItemSelectionModel(QItemSelectionModelPrivate &dd, QAbstractItemModel *model)
     : QObject(dd, model)
 {
-    d_func()->model = model;
-    if (model) {
-        connect(model, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)),
-                this, SLOT(_q_rowsAboutToBeRemoved(QModelIndex,int,int)));
-        connect(model, SIGNAL(columnsAboutToBeRemoved(QModelIndex,int,int)),
-                this, SLOT(_q_columnsAboutToBeRemoved(QModelIndex,int,int)));
-        connect(model, SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)),
-                this, SLOT(_q_rowsAboutToBeInserted(QModelIndex,int,int)));
-        connect(model, SIGNAL(columnsAboutToBeInserted(QModelIndex,int,int)),
-                this, SLOT(_q_columnsAboutToBeInserted(QModelIndex,int,int)));
-        connect(model, SIGNAL(layoutAboutToBeChanged()),
-                this, SLOT(_q_layoutAboutToBeChanged()));
-        connect(model, SIGNAL(layoutChanged()),
-                this, SLOT(_q_layoutChanged()));
-    }
+    dd.initModel(model);
 }
 
 /*!
@@ -958,21 +941,6 @@ QItemSelectionModel::QItemSelectionModel(QItemSelectionModelPrivate &dd, QAbstra
 */
 QItemSelectionModel::~QItemSelectionModel()
 {
-    Q_D(QItemSelectionModel);
-    if (d->model) {
-        disconnect(d->model, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)),
-                this, SLOT(_q_rowsAboutToBeRemoved(QModelIndex,int,int)));
-        disconnect(d->model, SIGNAL(columnsAboutToBeRemoved(QModelIndex,int,int)),
-                this, SLOT(_q_columnsAboutToBeRemoved(QModelIndex,int,int)));
-        disconnect(d->model, SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)),
-                this, SLOT(_q_rowsAboutToBeInserted(QModelIndex,int,int)));
-        disconnect(d->model, SIGNAL(columnsAboutToBeInserted(QModelIndex,int,int)),
-                this, SLOT(_q_columnsAboutToBeInserted(QModelIndex,int,int)));
-        disconnect(d->model, SIGNAL(layoutAboutToBeChanged()),
-                this, SLOT(_q_layoutAboutToBeChanged()));
-        disconnect(d->model, SIGNAL(layoutChanged()),
-                this, SLOT(_q_layoutChanged()));
-    }
 }
 
 /*!
diff --git a/src/gui/itemviews/qitemselectionmodel_p.h b/src/gui/itemviews/qitemselectionmodel_p.h
index 30583b2..5afa90d 100644
--- a/src/gui/itemviews/qitemselectionmodel_p.h
+++ b/src/gui/itemviews/qitemselectionmodel_p.h
@@ -70,6 +70,8 @@ public:
     QItemSelection expandSelection(const QItemSelection &selection,
                                    QItemSelectionModel::SelectionFlags command) const;
 
+    void initModel(QAbstractItemModel *model);
+
     void _q_rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
     void _q_columnsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
     void _q_rowsAboutToBeInserted(const QModelIndex &parent, int start, int end);