Merge branch 'master' into refactor

Conflicts:
	src/gui/kernel/qapplication_qpa.cpp
	src/gui/kernel/qcursor_qpa.cpp
	src/gui/kernel/qwindowsysteminterface_qpa.cpp
	src/gui/kernel/qwindowsysteminterface_qpa.h
	src/gui/kernel/qwindowsysteminterface_qpa_p.h
	src/gui/text/qtextcontrol.cpp
	src/plugins/platforms/wayland/wayland.pro
	src/widgets/accessible/qaccessible2.h
	src/widgets/widgets/qwidgetlinecontrol_p.h

Change-Id: I5e6f4eb184159dccc67e8f13673edb884d179c74

25 files changed, 550 insertions, 60 deletions

diff --git a/src/widgets/accessible/qaccessible.cpp b/src/widgets/accessible/qaccessible.cpp
index 337bb9992d..10e5785cd5 100644
--- a/src/widgets/accessible/qaccessible.cpp
+++ b/src/widgets/accessible/qaccessible.cpp
@@ -1048,6 +1048,11 @@ const QAccessibleInterface *other, int otherChild) const
 */
 
 /*!
+    \fn QAccessibleTable2Interface *QAccessibleInterface::table2Interface()
+    \internal
+*/
+
+/*!
     \fn QAccessibleActionInterface *QAccessibleInterface::actionInterface()
     \internal
 */
diff --git a/src/widgets/accessible/qaccessible.h b/src/widgets/accessible/qaccessible.h
index 517dac492b..312e2a3088 100644
--- a/src/widgets/accessible/qaccessible.h
+++ b/src/widgets/accessible/qaccessible.h
@@ -151,6 +151,7 @@ public:
         ReadOnly        = 0x00000040,
         HotTracked      = 0x00000080,
         DefaultButton   = 0x00000100,
+        // #### Qt5 Expandable
         Expanded        = 0x00000200,
         Collapsed       = 0x00000400,
         Busy            = 0x00000800,
@@ -175,6 +176,8 @@ public:
         HasPopup        = 0x40000000,
         Modal           = 0x80000000,
 
+        // #### Qt5 ManagesDescendants
+        // #### Qt5 remove HasInvokeExtension
         HasInvokeExtension = 0x10000000 // internal
     };
     Q_DECLARE_FLAGS(State, StateFlag)
@@ -345,7 +348,8 @@ namespace QAccessible2
         ValueInterface,
         TableInterface,
         ActionInterface,
-        ImageInterface
+        ImageInterface,
+        Table2Interface
     };
 }
 
@@ -356,6 +360,7 @@ class QAccessibleValueInterface;
 class QAccessibleTableInterface;
 class QAccessibleActionInterface;
 class QAccessibleImageInterface;
+class QAccessibleTable2Interface;
 
 class Q_WIDGETS_EXPORT QAccessibleInterface : public QAccessible
 {
@@ -419,6 +424,9 @@ public:
     inline QAccessibleImageInterface *imageInterface()
     { return reinterpret_cast<QAccessibleImageInterface *>(cast_helper(QAccessible2::ImageInterface)); }
 
+    inline QAccessibleTable2Interface *table2Interface()
+    { return reinterpret_cast<QAccessibleTable2Interface *>(cast_helper(QAccessible2::Table2Interface)); }
+
 private:
     QAccessible2Interface *cast_helper(QAccessible2::InterfaceType);
 };
diff --git a/src/widgets/accessible/qaccessible2.cpp b/src/widgets/accessible/qaccessible2.cpp
index 35b24f6e24..078ff13e2c 100644
--- a/src/widgets/accessible/qaccessible2.cpp
+++ b/src/widgets/accessible/qaccessible2.cpp
@@ -42,6 +42,7 @@
 #include "qaccessible2.h"
 #include "qapplication.h"
 #include "qclipboard.h"
+#include "qtextboundaryfinder.h"
 
 #ifndef QT_NO_ACCESSIBILITY
 
@@ -132,6 +133,117 @@ QT_BEGIN_NAMESPACE
     \link http://www.linux-foundation.org/en/Accessibility/IAccessible2 IAccessible2 Specification \endlink
 */
 
+
+/*!
+  \internal
+*/
+QString Q_GUI_EXPORT qTextBeforeOffsetFromString(int offset, QAccessible2::BoundaryType boundaryType,
+        int *startOffset, int *endOffset, const QString& text)
+{
+    QTextBoundaryFinder::BoundaryType type;
+    switch (boundaryType) {
+    case QAccessible2::CharBoundary:
+        type = QTextBoundaryFinder::Grapheme;
+        break;
+    case QAccessible2::WordBoundary:
+        type = QTextBoundaryFinder::Word;
+        break;
+    case QAccessible2::SentenceBoundary:
+        type = QTextBoundaryFinder::Sentence;
+        break;
+    default:
+        // in any other case return the whole line
+        *startOffset = 0;
+        *endOffset = text.length();
+        return text;
+    }
+
+    QTextBoundaryFinder boundary(type, text);
+    boundary.setPosition(offset);
+
+    if (!boundary.isAtBoundary()) {
+        boundary.toPreviousBoundary();
+    }
+    boundary.toPreviousBoundary();
+    *startOffset = boundary.position();
+    boundary.toNextBoundary();
+    *endOffset = boundary.position();
+
+    return text.mid(*startOffset, *endOffset - *startOffset);
+}
+
+/*!
+  \internal
+*/
+QString Q_GUI_EXPORT qTextAfterOffsetFromString(int offset, QAccessible2::BoundaryType boundaryType,
+        int *startOffset, int *endOffset, const QString& text)
+{
+    QTextBoundaryFinder::BoundaryType type;
+    switch (boundaryType) {
+    case QAccessible2::CharBoundary:
+        type = QTextBoundaryFinder::Grapheme;
+        break;
+    case QAccessible2::WordBoundary:
+        type = QTextBoundaryFinder::Word;
+        break;
+    case QAccessible2::SentenceBoundary:
+        type = QTextBoundaryFinder::Sentence;
+        break;
+    default:
+        // in any other case return the whole line
+        *startOffset = 0;
+        *endOffset = text.length();
+        return text;
+    }
+
+    QTextBoundaryFinder boundary(type, text);
+    boundary.setPosition(offset);
+
+    boundary.toNextBoundary();
+    *startOffset = boundary.position();
+    boundary.toNextBoundary();
+    *endOffset = boundary.position();
+
+    return text.mid(*startOffset, *endOffset - *startOffset);
+}
+
+/*!
+  \internal
+*/
+QString Q_GUI_EXPORT qTextAtOffsetFromString(int offset, QAccessible2::BoundaryType boundaryType,
+        int *startOffset, int *endOffset, const QString& text)
+{
+    QTextBoundaryFinder::BoundaryType type;
+    switch (boundaryType) {
+    case QAccessible2::CharBoundary:
+        type = QTextBoundaryFinder::Grapheme;
+        break;
+    case QAccessible2::WordBoundary:
+        type = QTextBoundaryFinder::Word;
+        break;
+    case QAccessible2::SentenceBoundary:
+        type = QTextBoundaryFinder::Sentence;
+        break;
+    default:
+        // in any other case return the whole line
+        *startOffset = 0;
+        *endOffset = text.length();
+        return text;
+    }
+
+    QTextBoundaryFinder boundary(type, text);
+    boundary.setPosition(offset);
+
+    if (!boundary.isAtBoundary()) {
+        boundary.toPreviousBoundary();
+    }
+    *startOffset = boundary.position();
+    boundary.toNextBoundary();
+    *endOffset = boundary.position();
+
+    return text.mid(*startOffset, *endOffset - *startOffset);
+}
+
 QAccessibleSimpleEditableTextInterface::QAccessibleSimpleEditableTextInterface(
                 QAccessibleInterface *accessibleInterface)
     : iface(accessibleInterface)
diff --git a/src/widgets/accessible/qaccessible2.h b/src/widgets/accessible/qaccessible2.h
index 1f18ac5501..69c19499c2 100644
--- a/src/widgets/accessible/qaccessible2.h
+++ b/src/widgets/accessible/qaccessible2.h
@@ -52,6 +52,8 @@ QT_MODULE(Gui)
 
 #ifndef QT_NO_ACCESSIBILITY
 
+class QModelIndex;
+
 namespace QAccessible2
 {
     enum CoordinateType
@@ -68,6 +70,24 @@ namespace QAccessible2
         LineBoundary,
         NoBoundary
     };
+
+    enum TableModelChangeType {
+        TableModelChangeInsert,
+        TableModelChangeDelete,
+        TableModelChangeUpdate
+    };
+
+    struct TableModelChange {
+        int firstColumn;
+        int firstRow;
+        int lastColumn;
+        int lastRow;
+        TableModelChangeType type;
+
+        TableModelChange()
+            : firstColumn(0), firstRow(0), lastColumn(0), lastRow(0), type(TableModelChangeUpdate)
+        {}
+    };
 }
 
 class Q_WIDGETS_EXPORT QAccessible2Interface
@@ -83,6 +103,7 @@ inline QAccessible2Interface *qAccessibleEditableTextCastHelper() { return 0; }
 inline QAccessible2Interface *qAccessibleTableCastHelper() { return 0; }
 inline QAccessible2Interface *qAccessibleActionCastHelper() { return 0; }
 inline QAccessible2Interface *qAccessibleImageCastHelper() { return 0; }
+inline QAccessible2Interface *qAccessibleTable2CastHelper() { return 0; }
 
 #define Q_ACCESSIBLE_OBJECT \
     public: \
@@ -101,6 +122,8 @@ inline QAccessible2Interface *qAccessibleImageCastHelper() { return 0; }
             return qAccessibleActionCastHelper(); \
         case QAccessible2::ImageInterface: \
             return qAccessibleImageCastHelper(); \
+        case QAccessible2::Table2Interface: \
+            return qAccessibleTable2CastHelper(); \
         } \
         return 0; \
     } \
@@ -214,6 +237,95 @@ public:
                              int *columnSpan, bool *isSelected) = 0;
 };
 
+class Q_WIDGETS_EXPORT QAccessibleTable2CellInterface: public QAccessibleInterface
+{
+public:
+    //            Returns the number of columns occupied by this cell accessible.
+    virtual int columnExtent() const = 0;
+
+    //            Returns the column headers as an array of cell accessibles.
+    virtual QList<QAccessibleInterface*> columnHeaderCells() const = 0;
+
+    //            Translates this cell accessible into the corresponding column index.
+    virtual int columnIndex() const = 0;
+    //            Returns the number of rows occupied by this cell accessible.
+    virtual int rowExtent() const = 0;
+    //            Returns the row headers as an array of cell accessibles.
+    virtual QList<QAccessibleInterface*> rowHeaderCells() const = 0;
+    //            Translates this cell accessible into the corresponding row index.
+    virtual int rowIndex() const = 0;
+    //            Returns a boolean value indicating whether this cell is selected.
+    virtual bool isSelected() const = 0;
+
+    //            Gets the row and column indexes and extents of this cell accessible and whether or not it is selected.
+    virtual void rowColumnExtents(int *row, int *column, int *rowExtents, int *columnExtents, bool *selected) const = 0;
+    //            Returns a reference to the accessbile of the containing table.
+    virtual QAccessibleTable2Interface* table() const = 0;
+
+    // #### Qt5 this should not be here but part of the state
+    virtual bool isExpandable() const = 0;
+};
+
+class Q_WIDGETS_EXPORT QAccessibleTable2Interface: public QAccessible2Interface
+{
+public:
+    inline QAccessible2Interface *qAccessibleTable2CastHelper() { return this; }
+
+    // Returns the cell at the specified row and column in the table.
+    virtual QAccessibleTable2CellInterface *cellAt (int row, int column) const = 0;
+    // Returns the caption for the table.
+    virtual QAccessibleInterface *caption() const = 0;
+    // Returns the description text of the specified column in the table.
+    virtual QString columnDescription(int column) const = 0;
+    // Returns the total number of columns in table.
+    virtual int columnCount() const = 0;
+    // Returns the total number of rows in table.
+    virtual int rowCount() const = 0;
+    // Returns the total number of selected cells.
+    virtual int selectedCellCount() const = 0;
+    // Returns the total number of selected columns.
+    virtual int selectedColumnCount() const = 0;
+    // Returns the total number of selected rows.
+    virtual int selectedRowCount() const = 0;
+    // Returns the description text of the specified row in the table.
+    virtual QString rowDescription(int row) const = 0;
+    // Returns a list of accessibles currently selected.
+    virtual QList<QAccessibleTable2CellInterface*> selectedCells() const = 0;
+    // Returns a list of column indexes currently selected (0 based).
+    virtual QList<int> selectedColumns() const = 0;
+    // Returns a list of row indexes currently selected (0 based).
+    virtual QList<int> selectedRows() const = 0;
+    // Returns the summary description of the table.
+    virtual QAccessibleInterface *summary() const = 0;
+    // Returns a boolean value indicating whether the specified column is completely selected.
+    virtual bool isColumnSelected(int column) const = 0;
+    // Returns a boolean value indicating whether the specified row is completely selected.
+    virtual bool isRowSelected(int row) const = 0;
+    // Selects a row and unselects all previously selected rows.
+    virtual bool selectRow(int row) = 0;
+    // Selects a column and unselects all previously selected columns.
+    virtual bool selectColumn(int column) = 0;
+    // Unselects one row, leaving other selected rows selected (if any).
+    virtual bool unselectRow(int row) = 0;
+    // Unselects one column, leaving other selected columns selected (if any).
+    virtual bool unselectColumn(int column) = 0;
+    // Returns the type and extents describing how a table changed.
+    virtual QAccessible2::TableModelChange modelChange() const = 0;
+
+protected:
+    // These functions are called when the model changes.
+    virtual void modelReset() = 0;
+    virtual void rowsInserted(const QModelIndex &parent, int first, int last) = 0;
+    virtual void rowsRemoved(const QModelIndex &parent, int first, int last) = 0;
+    virtual void columnsInserted(const QModelIndex &parent, int first, int last) = 0;
+    virtual void columnsRemoved(const QModelIndex &parent, int first, int last) = 0;
+    virtual void rowsMoved( const QModelIndex &parent, int start, int end, const QModelIndex &destination, int row) = 0;
+    virtual void columnsMoved( const QModelIndex &parent, int start, int end, const QModelIndex &destination, int column) = 0;
+
+friend class QAbstractItemView;
+friend class QAbstractItemViewPrivate;
+};
+
 class Q_WIDGETS_EXPORT QAccessibleActionInterface : public QAccessible2Interface
 {
 public:
diff --git a/src/widgets/accessible/qaccessible_mac.mm b/src/widgets/accessible/qaccessible_mac.mm
index 432b536577..a250730493 100644
--- a/src/widgets/accessible/qaccessible_mac.mm
+++ b/src/widgets/accessible/qaccessible_mac.mm
@@ -2427,7 +2427,7 @@ void QAccessible::updateAccessibility(QObject *object, int child, Event reason)
         }
 
         // There is no equivalent Mac notification for ObjectShow/Hide, so we call HIObjectSetAccessibilityIgnored
-        // and isItIntersting which will mark the HIObject accociated with the element as ignored if the
+        // and isItInteresting which will mark the HIObject accociated with the element as ignored if the
         // QAccessible::Invisible state bit is set.
         QAInterface interface = accessibleHierarchyManager()->lookup(element);
         if (interface.isValid()) {
diff --git a/src/widgets/accessible/qaccessible_unix.cpp b/src/widgets/accessible/qaccessible_unix.cpp
index a6b7ec3345..19fbe78301 100644
--- a/src/widgets/accessible/qaccessible_unix.cpp
+++ b/src/widgets/accessible/qaccessible_unix.cpp
@@ -103,6 +103,17 @@ void QAccessible::updateAccessibility(QObject *o, int who, Event reason)
     if (!iface)
         return;
 
+    // updates for List/Table/Tree should send child
+    if (who) {
+        QAccessibleInterface *child;
+        iface->navigate(QAccessible::Child, who, &child);
+        if (child) {
+            delete iface;
+            iface = child;
+            who = 0;
+        }
+    }
+
     for (int i = 0; i < bridges()->count(); ++i)
         bridges()->at(i)->notifyAccessibilityUpdate(reason, iface, who);
     delete iface;
diff --git a/src/widgets/accessible/qaccessiblewidget.cpp b/src/widgets/accessible/qaccessiblewidget.cpp
index 9605e38c5a..05948dcc9c 100644
--- a/src/widgets/accessible/qaccessiblewidget.cpp
+++ b/src/widgets/accessible/qaccessiblewidget.cpp
@@ -704,13 +704,16 @@ int QAccessibleWidget::navigate(RelationFlag relation, int entry,
             int sibCount = pIface->childCount();
             QAccessibleInterface *candidate = 0;
             for (int i = 0; i < sibCount && entry; ++i) {
-                pIface->navigate(Child, i+1, &candidate);
-                Q_ASSERT(candidate);
-                if (candidate->relationTo(0, this, 0) & Label)
+                const int childId = pIface->navigate(Child, i+1, &candidate);
+                Q_ASSERT(childId >= 0);
+                if (childId > 0)
+                    candidate = pIface;
+                if (candidate->relationTo(childId, this, 0) & Label)
                     --entry;
                 if (!entry)
                     break;
-                delete candidate;
+                if (candidate != pIface)
+                    delete candidate;
                 candidate = 0;
             }
             if (!candidate) {
diff --git a/src/widgets/graphicsview/qgraphicsitem.cpp b/src/widgets/graphicsview/qgraphicsitem.cpp
index 7070d49579..c0f6339deb 100644
--- a/src/widgets/graphicsview/qgraphicsitem.cpp
+++ b/src/widgets/graphicsview/qgraphicsitem.cpp
@@ -1171,24 +1171,26 @@ void QGraphicsItemPrivate::setParentItemHelper(QGraphicsItem *newParent, const Q
     // Update focus scope item ptr in new scope.
     QGraphicsItem *newFocusScopeItem = subFocusItem ? subFocusItem : parentFocusScopeItem;
     if (newFocusScopeItem && newParent) {
-        if (subFocusItem) {
-            // Find the subFocusItem's topmost focus scope.
-            QGraphicsItem *ancestorScope = 0;
-            QGraphicsItem *p = subFocusItem->d_ptr->parent;
-            while (p) {
-                if (p->d_ptr->flags & QGraphicsItem::ItemIsFocusScope)
-                    ancestorScope = p;
-                if (p->d_ptr->flags & QGraphicsItem::ItemIsPanel)
-                    break;
-                p = p->d_ptr->parent;
-            }
-            if (ancestorScope)
-                newFocusScopeItem = ancestorScope;
-        }
-
         QGraphicsItem *p = newParent;
         while (p) {
             if (p->d_ptr->flags & QGraphicsItem::ItemIsFocusScope) {
+                if (subFocusItem && subFocusItem != q_ptr) {
+                    // Find the subFocusItem's topmost focus scope within the new parent's focusscope
+                    QGraphicsItem *ancestorScope = 0;
+                    QGraphicsItem *p2 = subFocusItem->d_ptr->parent;
+                    while (p2 && p2 != p) {
+                        if (p2->d_ptr->flags & QGraphicsItem::ItemIsFocusScope)
+                            ancestorScope = p2;
+                        if (p2->d_ptr->flags & QGraphicsItem::ItemIsPanel)
+                            break;
+                        if (p2 == q_ptr)
+                            break;
+                        p2 = p2->d_ptr->parent;
+                    }
+                    if (ancestorScope)
+                        newFocusScopeItem = ancestorScope;
+                }
+
                 p->d_ptr->focusScopeItem = newFocusScopeItem;
                 newFocusScopeItem->d_ptr->focusScopeItemChange(true);
                 // Ensure the new item is no longer the subFocusItem. The
diff --git a/src/widgets/graphicsview/qgraphicslayout_p.h b/src/widgets/graphicsview/qgraphicslayout_p.h
index 94150cb9fd..f11bfbf38c 100644
--- a/src/widgets/graphicsview/qgraphicslayout_p.h
+++ b/src/widgets/graphicsview/qgraphicslayout_p.h
@@ -98,9 +98,9 @@ public:
     inline QStyle *style() const { return m_style; }
     inline QWidget *widget() const { return m_widget; }
 
-    inline bool operator==(const QLayoutStyleInfo &other)
+    inline bool operator==(const QLayoutStyleInfo &other) const
         { return m_style == other.m_style && m_widget == other.m_widget; }
-    inline bool operator!=(const QLayoutStyleInfo &other)
+    inline bool operator!=(const QLayoutStyleInfo &other) const
         { return !(*this == other); }
 
     inline void setDefaultSpacing(Qt::Orientation o, qreal spacing){
diff --git a/src/widgets/itemviews/qabstractitemview.cpp b/src/widgets/itemviews/qabstractitemview.cpp
index 6aed17c049..d3875c8961 100644
--- a/src/widgets/itemviews/qabstractitemview.cpp
+++ b/src/widgets/itemviews/qabstractitemview.cpp
@@ -60,6 +60,7 @@
 #include <private/qabstractitemmodel_p.h>
 #ifndef QT_NO_ACCESSIBILITY
 #include <qaccessible.h>
+#include <qaccessible2.h>
 #endif
 #include <private/qsoftkeymanager_p.h>
 #ifndef QT_NO_GESTURE
@@ -682,6 +683,8 @@ void QAbstractItemView::setModel(QAbstractItemModel *model)
                    this, SLOT(rowsAboutToBeRemoved(QModelIndex,int,int)));
         disconnect(d->model, SIGNAL(rowsRemoved(QModelIndex,int,int)),
                    this, SLOT(_q_rowsRemoved(QModelIndex,int,int)));
+        disconnect(d->model, SIGNAL(rowsInserted(QModelIndex,int,int)),
+                   this, SLOT(_q_rowsInserted(QModelIndex,int,int)));
         disconnect(d->model, SIGNAL(columnsAboutToBeRemoved(QModelIndex,int,int)),
                    this, SLOT(_q_columnsAboutToBeRemoved(QModelIndex,int,int)));
         disconnect(d->model, SIGNAL(columnsRemoved(QModelIndex,int,int)),
@@ -712,6 +715,8 @@ void QAbstractItemView::setModel(QAbstractItemModel *model)
                 this, SLOT(_q_headerDataChanged()));
         connect(d->model, SIGNAL(rowsInserted(QModelIndex,int,int)),
                 this, SLOT(rowsInserted(QModelIndex,int,int)));
+        connect(d->model, SIGNAL(rowsInserted(QModelIndex,int,int)),
+                this, SLOT(_q_rowsInserted(QModelIndex,int,int)));
         connect(d->model, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)),
                 this, SLOT(rowsAboutToBeRemoved(QModelIndex,int,int)));
         connect(d->model, SIGNAL(rowsRemoved(QModelIndex,int,int)),
@@ -1095,6 +1100,14 @@ void QAbstractItemView::reset()
     setRootIndex(QModelIndex());
     if (d->selectionModel)
         d->selectionModel->reset();
+#ifndef QT_NO_ACCESSIBILITY
+#ifdef Q_WS_X11
+    if (QAccessible::isActive()) {
+        QAccessible::queryAccessibleInterface(this)->table2Interface()->modelReset();
+        QAccessible::updateAccessibility(this, 0, QAccessible::TableModelChanged);
+    }
+#endif
+#endif
 }
 
 /*!
@@ -2849,7 +2862,7 @@ void QAbstractItemView::editorDestroyed(QObject *editor)
 */
 void QAbstractItemView::setHorizontalStepsPerItem(int steps)
 {
-    Q_UNUSED(steps);
+    Q_UNUSED(steps)
     // do nothing
 }
 
@@ -2878,7 +2891,7 @@ int QAbstractItemView::horizontalStepsPerItem() const
 */
 void QAbstractItemView::setVerticalStepsPerItem(int steps)
 {
-    Q_UNUSED(steps);
+    Q_UNUSED(steps)
     // do nothing
 }
 
@@ -3311,12 +3324,24 @@ void QAbstractItemView::rowsAboutToBeRemoved(const QModelIndex &parent, int star
     rows are those under the given \a parent from \a start to \a end
     inclusive.
 */
-void QAbstractItemViewPrivate::_q_rowsRemoved(const QModelIndex &, int, int)
+void QAbstractItemViewPrivate::_q_rowsRemoved(const QModelIndex &index, int start, int end)
 {
+    Q_UNUSED(index)
+    Q_UNUSED(start)
+    Q_UNUSED(end)
+
     Q_Q(QAbstractItemView);
     if (q->isVisible())
         q->updateEditorGeometries();
     q->setState(QAbstractItemView::NoState);
+#ifndef QT_NO_ACCESSIBILITY
+#ifdef Q_WS_X11
+    if (QAccessible::isActive()) {
+        QAccessible::queryAccessibleInterface(q)->table2Interface()->rowsRemoved(index, start, end);
+        QAccessible::updateAccessibility(q, 0, QAccessible::TableModelChanged);
+    }
+#endif
+#endif
 }
 
 /*!
@@ -3379,27 +3404,72 @@ void QAbstractItemViewPrivate::_q_columnsAboutToBeRemoved(const QModelIndex &par
     rows are those under the given \a parent from \a start to \a end
     inclusive.
 */
-void QAbstractItemViewPrivate::_q_columnsRemoved(const QModelIndex &, int, int)
+void QAbstractItemViewPrivate::_q_columnsRemoved(const QModelIndex &index, int start, int end)
 {
+    Q_UNUSED(index)
+    Q_UNUSED(start)
+    Q_UNUSED(end)
+
     Q_Q(QAbstractItemView);
     if (q->isVisible())
         q->updateEditorGeometries();
     q->setState(QAbstractItemView::NoState);
+#ifndef QT_NO_ACCESSIBILITY
+#ifdef Q_WS_X11
+    if (QAccessible::isActive()) {
+        QAccessible::queryAccessibleInterface(q)->table2Interface()->columnsRemoved(index, start, end);
+        QAccessible::updateAccessibility(q, 0, QAccessible::TableModelChanged);
+    }
+#endif
+#endif
 }
 
+
 /*!
     \internal
 
     This slot is called when rows have been inserted.
 */
-void QAbstractItemViewPrivate::_q_columnsInserted(const QModelIndex &, int, int)
+void QAbstractItemViewPrivate::_q_rowsInserted(const QModelIndex &index, int start, int end)
 {
+    Q_UNUSED(index)
+    Q_UNUSED(start)
+    Q_UNUSED(end)
+
     Q_Q(QAbstractItemView);
-    if (q->isVisible())
-        q->updateEditorGeometries();
+#ifndef QT_NO_ACCESSIBILITY
+#ifdef Q_WS_X11
+    if (QAccessible::isActive()) {
+        QAccessible::queryAccessibleInterface(q)->table2Interface()->rowsInserted(index, start, end);
+        QAccessible::updateAccessibility(q, 0, QAccessible::TableModelChanged);
+    }
+#endif
+#endif
 }
 
+/*!
+    \internal
 
+    This slot is called when columns have been inserted.
+*/
+void QAbstractItemViewPrivate::_q_columnsInserted(const QModelIndex &index, int start, int end)
+{
+    Q_UNUSED(index)
+    Q_UNUSED(start)
+    Q_UNUSED(end)
+
+    Q_Q(QAbstractItemView);
+    if (q->isVisible())
+        q->updateEditorGeometries();
+#ifndef QT_NO_ACCESSIBILITY
+#ifdef Q_WS_X11
+    if (QAccessible::isActive()) {
+        QAccessible::queryAccessibleInterface(q)->table2Interface()->columnsInserted(index, start, end);
+        QAccessible::updateAccessibility(q, 0, QAccessible::TableModelChanged);
+    }
+#endif
+#endif
+}
 
 /*!
     \internal
@@ -3417,7 +3487,16 @@ void QAbstractItemViewPrivate::_q_modelDestroyed()
 */
 void QAbstractItemViewPrivate::_q_layoutChanged()
 {
+    Q_Q(QAbstractItemView);
     doDelayedItemsLayout();
+#ifndef QT_NO_ACCESSIBILITY
+#ifdef Q_WS_X11
+    if (QAccessible::isActive()) {
+        QAccessible::queryAccessibleInterface(q)->table2Interface()->modelReset();
+        QAccessible::updateAccessibility(q, 0, QAccessible::TableModelChanged);
+    }
+#endif
+#endif
 }
 
 /*!
@@ -3742,7 +3821,7 @@ QItemSelectionModel::SelectionFlags QAbstractItemView::selectionCommand(const QM
 QItemSelectionModel::SelectionFlags QAbstractItemViewPrivate::multiSelectionCommand(
     const QModelIndex &index, const QEvent *event) const
 {
-    Q_UNUSED(index);
+    Q_UNUSED(index)
 
     if (event) {
         switch (event->type()) {
diff --git a/src/widgets/itemviews/qabstractitemview.h b/src/widgets/itemviews/qabstractitemview.h
index 2ba7c8de1c..8a2e1cb04e 100644
--- a/src/widgets/itemviews/qabstractitemview.h
+++ b/src/widgets/itemviews/qabstractitemview.h
@@ -355,6 +355,7 @@ private:
     Q_PRIVATE_SLOT(d_func(), void _q_columnsAboutToBeRemoved(const QModelIndex&, int, int))
     Q_PRIVATE_SLOT(d_func(), void _q_columnsRemoved(const QModelIndex&, int, int))
     Q_PRIVATE_SLOT(d_func(), void _q_columnsInserted(const QModelIndex&, int, int))
+    Q_PRIVATE_SLOT(d_func(), void _q_rowsInserted(const QModelIndex&, int, int))
     Q_PRIVATE_SLOT(d_func(), void _q_rowsRemoved(const QModelIndex&, int, int))
     Q_PRIVATE_SLOT(d_func(), void _q_modelDestroyed())
     Q_PRIVATE_SLOT(d_func(), void _q_layoutChanged())
diff --git a/src/widgets/itemviews/qabstractitemview_p.h b/src/widgets/itemviews/qabstractitemview_p.h
index b76e579880..cd15694ffe 100644
--- a/src/widgets/itemviews/qabstractitemview_p.h
+++ b/src/widgets/itemviews/qabstractitemview_p.h
@@ -108,6 +108,7 @@ public:
     void init();
 
     virtual void _q_rowsRemoved(const QModelIndex &parent, int start, int end);
+    virtual void _q_rowsInserted(const QModelIndex &parent, int start, int end);
     virtual void _q_columnsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
     virtual void _q_columnsRemoved(const QModelIndex &parent, int start, int end);
     virtual void _q_columnsInserted(const QModelIndex &parent, int start, int end);
diff --git a/src/widgets/itemviews/qlistview.cpp b/src/widgets/itemviews/qlistview.cpp
index 983b0d38e3..d879e65c14 100644
--- a/src/widgets/itemviews/qlistview.cpp
+++ b/src/widgets/itemviews/qlistview.cpp
@@ -3169,7 +3169,11 @@ void QListView::currentChanged(const QModelIndex &current, const QModelIndex &pr
     if (QAccessible::isActive()) {
         if (current.isValid()) {
             int entry = visualIndex(current) + 1;
+#ifdef Q_WS_X11
+            QAccessible::updateAccessibility(this, entry, QAccessible::Focus);
+#else
             QAccessible::updateAccessibility(viewport(), entry, QAccessible::Focus);
+#endif
         }
     }
 #endif
@@ -3188,12 +3192,20 @@ void QListView::selectionChanged(const QItemSelection &selected,
         QModelIndex sel = selected.indexes().value(0);
         if (sel.isValid()) {
             int entry = visualIndex(sel) + 1;
+#ifdef Q_WS_X11
+            QAccessible::updateAccessibility(this, entry, QAccessible::Selection);
+#else
             QAccessible::updateAccessibility(viewport(), entry, QAccessible::Selection);
+#endif
         }
         QModelIndex desel = deselected.indexes().value(0);
         if (desel.isValid()) {
             int entry = visualIndex(desel) + 1;
+#ifdef Q_WS_X11
+            QAccessible::updateAccessibility(this, entry, QAccessible::SelectionRemove);
+#else
             QAccessible::updateAccessibility(viewport(), entry, QAccessible::SelectionRemove);
+#endif
         }
     }
 #endif
diff --git a/src/widgets/itemviews/qtableview.cpp b/src/widgets/itemviews/qtableview.cpp
index 617409ff3f..6f532eb7c7 100644
--- a/src/widgets/itemviews/qtableview.cpp
+++ b/src/widgets/itemviews/qtableview.cpp
@@ -3164,10 +3164,16 @@ void QTableView::currentChanged(const QModelIndex &current, const QModelIndex &p
 #ifndef QT_NO_ACCESSIBILITY
     if (QAccessible::isActive()) {
         if (current.isValid()) {
+#ifdef Q_WS_X11
+            Q_D(QTableView);
+            int entry = d->accessibleTable2Index(current);
+            QAccessible::updateAccessibility(this, entry, QAccessible::Focus);
+#else
             int entry = visualIndex(current) + 1;
             if (horizontalHeader())
                 ++entry;
             QAccessible::updateAccessibility(viewport(), entry, QAccessible::Focus);
+#endif
         }
     }
 #endif
@@ -3180,22 +3186,33 @@ void QTableView::currentChanged(const QModelIndex &current, const QModelIndex &p
 void QTableView::selectionChanged(const QItemSelection &selected,
                                   const QItemSelection &deselected)
 {
+    Q_D(QTableView);
 #ifndef QT_NO_ACCESSIBILITY
     if (QAccessible::isActive()) {
         // ### does not work properly for selection ranges.
         QModelIndex sel = selected.indexes().value(0);
         if (sel.isValid()) {
+#ifdef Q_WS_X11
+            int entry = d->accessibleTable2Index(sel);
+            QAccessible::updateAccessibility(this, entry, QAccessible::Selection);
+#else
             int entry = visualIndex(sel);
             if (horizontalHeader())
                 ++entry;
             QAccessible::updateAccessibility(viewport(), entry, QAccessible::Selection);
+#endif
         }
         QModelIndex desel = deselected.indexes().value(0);
         if (desel.isValid()) {
+#ifdef Q_WS_X11
+            int entry = d->accessibleTable2Index(sel);
+            QAccessible::updateAccessibility(this, entry, QAccessible::SelectionRemove);
+#else
             int entry = visualIndex(sel);
             if (horizontalHeader())
                 ++entry;
             QAccessible::updateAccessibility(viewport(), entry, QAccessible::SelectionRemove);
+#endif
         }
     }
 #endif
diff --git a/src/widgets/itemviews/qtableview_p.h b/src/widgets/itemviews/qtableview_p.h
index f973acf3ce..dce0ed06ac 100644
--- a/src/widgets/itemviews/qtableview_p.h
+++ b/src/widgets/itemviews/qtableview_p.h
@@ -167,6 +167,11 @@ public:
         return horizontalHeader->logicalIndex(visualCol);
     }
 
+    inline int accessibleTable2Index(const QModelIndex &index) const {
+        return (index.row() + (horizontalHeader ? 1 : 0)) * (index.model()->columnCount() + (verticalHeader ? 1 : 0))
+            + index.column() + (verticalHeader ? 1 : 0) + 1;
+    }
+
     int sectionSpanEndLogical(const QHeaderView *header, int logical, int span) const;
     int sectionSpanSize(const QHeaderView *header, int logical, int span) const;
     bool spanContainsSection(const QHeaderView *header, int logical, int spanLogical, int span) const;
diff --git a/src/widgets/itemviews/qtreeview.cpp b/src/widgets/itemviews/qtreeview.cpp
index 6a992dbab6..9228ac82a2 100644
--- a/src/widgets/itemviews/qtreeview.cpp
+++ b/src/widgets/itemviews/qtreeview.cpp
@@ -54,6 +54,7 @@
 #include <qdebug.h>
 #ifndef QT_NO_ACCESSIBILITY
 #include <qaccessible.h>
+#include <qaccessible2.h>
 #endif
 
 #include <private/qtreeview_p.h>
@@ -2883,20 +2884,36 @@ void QTreeViewPrivate::expand(int item, bool emitSignal)
 
 void QTreeViewPrivate::insertViewItems(int pos, int count, const QTreeViewItem &viewItem)
 {
+    Q_Q(QTreeView);
     viewItems.insert(pos, count, viewItem);
     QTreeViewItem *items = viewItems.data();
     for (int i = pos + count; i < viewItems.count(); i++)
         if (items[i].parentItem >= pos)
             items[i].parentItem += count;
+#ifndef QT_NO_ACCESSIBILITY
+#ifdef Q_WS_X11
+    if (QAccessible::isActive()) {
+        QAccessible::updateAccessibility(q, 0, QAccessible::TableModelChanged);
+    }
+#endif
+#endif
 }
 
 void QTreeViewPrivate::removeViewItems(int pos, int count)
 {
+    Q_Q(QTreeView);
     viewItems.remove(pos, count);
     QTreeViewItem *items = viewItems.data();
     for (int i = pos; i < viewItems.count(); i++)
         if (items[i].parentItem >= pos)
             items[i].parentItem -= count;
+#ifndef QT_NO_ACCESSIBILITY
+#ifdef Q_WS_X11
+    if (QAccessible::isActive()) {
+        QAccessible::updateAccessibility(q, 0, QAccessible::TableModelChanged);
+    }
+#endif
+#endif
 }
 
 #if 0
@@ -3687,14 +3704,6 @@ void QTreeViewPrivate::_q_sortIndicatorChanged(int column, Qt::SortOrder order)
  */
 void QTreeView::currentChanged(const QModelIndex &current, const QModelIndex &previous)
 {
-#ifndef QT_NO_ACCESSIBILITY
-    if (QAccessible::isActive()) {
-        int entry = visualIndex(current) + 1;
-        if (header())
-            ++entry;
-        QAccessible::updateAccessibility(viewport(), entry, QAccessible::Focus);
-    }
-#endif
     QAbstractItemView::currentChanged(current, previous);
 
     if (allColumnsShowFocus()) {
@@ -3711,6 +3720,19 @@ void QTreeView::currentChanged(const QModelIndex &current, const QModelIndex &pr
             viewport()->update(currentRect);
         }
     }
+#ifndef QT_NO_ACCESSIBILITY
+    if (QAccessible::isActive() && current.isValid()) {
+#ifdef Q_WS_X11
+        int entry = (visualIndex(current) + (header()?1:0))*current.model()->columnCount()+current.column() + 1;
+        QAccessible::updateAccessibility(this, entry, QAccessible::Focus);
+#else
+        int entry = visualIndex(current) + 1;
+        if (header())
+            ++entry;
+        QAccessible::updateAccessibility(viewport(), entry, QAccessible::Focus);
+#endif
+    }
+#endif
 }
 
 /*!
@@ -3719,26 +3741,38 @@ void QTreeView::currentChanged(const QModelIndex &current, const QModelIndex &pr
 void QTreeView::selectionChanged(const QItemSelection &selected,
                                  const QItemSelection &deselected)
 {
+    QAbstractItemView::selectionChanged(selected, deselected);
 #ifndef QT_NO_ACCESSIBILITY
     if (QAccessible::isActive()) {
         // ### does not work properly for selection ranges.
         QModelIndex sel = selected.indexes().value(0);
         if (sel.isValid()) {
+#ifdef Q_WS_X11
+            int entry = (visualIndex(sel) + (header()?1:0))*sel.model()->columnCount()+sel.column() + 1;
+            Q_ASSERT(entry > 0);
+            QAccessible::updateAccessibility(this, entry, QAccessible::Selection);
+#else
             int entry = visualIndex(sel) + 1;
             if (header())
                 ++entry;
             QAccessible::updateAccessibility(viewport(), entry, QAccessible::Selection);
+#endif
         }
         QModelIndex desel = deselected.indexes().value(0);
         if (desel.isValid()) {
+#ifdef Q_WS_X11
+            int entry = (visualIndex(desel) + (header()?1:0))*desel.model()->columnCount()+desel.column() + 1;
+            Q_ASSERT(entry > 0);
+            QAccessible::updateAccessibility(this, entry, QAccessible::SelectionRemove);
+#else
             int entry = visualIndex(desel) + 1;
             if (header())
                 ++entry;
             QAccessible::updateAccessibility(viewport(), entry, QAccessible::SelectionRemove);
+#endif
         }
     }
 #endif
-    QAbstractItemView::selectionChanged(selected, deselected);
 }
 
 int QTreeView::visualIndex(const QModelIndex &index) const
diff --git a/src/widgets/itemviews/qtreeview.h b/src/widgets/itemviews/qtreeview.h
index a78bad341f..47cac2faed 100644
--- a/src/widgets/itemviews/qtreeview.h
+++ b/src/widgets/itemviews/qtreeview.h
@@ -219,6 +219,9 @@ protected:
 
 private:
     friend class QAccessibleItemView;
+    friend class QAccessibleTable2;
+    friend class QAccessibleTree;
+    friend class QAccessibleTable2Cell;
     int visualIndex(const QModelIndex &index) const;
 
     Q_DECLARE_PRIVATE(QTreeView)
diff --git a/src/widgets/itemviews/qtreeview_p.h b/src/widgets/itemviews/qtreeview_p.h
index b6d84586ee..a9dc452398 100644
--- a/src/widgets/itemviews/qtreeview_p.h
+++ b/src/widgets/itemviews/qtreeview_p.h
@@ -78,7 +78,7 @@ struct QTreeViewItem
 
 Q_DECLARE_TYPEINFO(QTreeViewItem, Q_MOVABLE_TYPE);
 
-class QTreeViewPrivate : public QAbstractItemViewPrivate
+class Q_GUI_EXPORT QTreeViewPrivate : public QAbstractItemViewPrivate
 {
     Q_DECLARE_PUBLIC(QTreeView)
 public:
@@ -223,6 +223,10 @@ public:
     inline void invalidateHeightCache(int item) const
         { viewItems[item].height = 0; }
 
+    inline int accessibleTable2Index(const QModelIndex &index) const {
+        return (viewIndex(index) + (header ? 1 : 0)) * model->columnCount()+index.column() + 1;
+    }
+
     // used for spanning rows
     QVector<QPersistentModelIndex> spanningIndexes;
 
diff --git a/src/widgets/itemviews/qwidgetitemdata_p.h b/src/widgets/itemviews/qwidgetitemdata_p.h
index 19724a3ccc..e7a08de378 100644
--- a/src/widgets/itemviews/qwidgetitemdata_p.h
+++ b/src/widgets/itemviews/qwidgetitemdata_p.h
@@ -62,7 +62,7 @@ public:
     inline QWidgetItemData(int r, QVariant v) : role(r), value(v) {}
     int role;
     QVariant value;
-    inline bool operator==(const QWidgetItemData &other) { return role == other.role && value == other.value; }
+    inline bool operator==(const QWidgetItemData &other) const { return role == other.role && value == other.value; }
 };
 
 #ifndef QT_NO_DATASTREAM
diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index 0e7a12c021..9587ac44e0 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -6376,6 +6376,10 @@ void QWidget::setFocus(Qt::FocusReason reason)
         if (!(testAttribute(Qt::WA_WState_Created) && window()->windowType() != Qt::Popup && internalWinId()))
             //setFocusWidget will already post a focus event for us (that the AT client receives) on Windows
 # endif
+# ifdef  Q_OS_UNIX
+        // menus update the focus manually and this would create bogus events
+        if (!(f->inherits("QMenuBar") || f->inherits("QMenu") || f->inherits("QMenuItem")))
+# endif
             QAccessible::updateAccessibility(f, 0, QAccessible::Focus);
 #endif
 #ifndef QT_NO_GRAPHICSVIEW
diff --git a/src/widgets/platforms/mac/qeventdispatcher_mac_p.h b/src/widgets/platforms/mac/qeventdispatcher_mac_p.h
index 485b14c38f..f4cf16e8a0 100644
--- a/src/widgets/platforms/mac/qeventdispatcher_mac_p.h
+++ b/src/widgets/platforms/mac/qeventdispatcher_mac_p.h
@@ -141,7 +141,7 @@ struct MacTimerInfo {
     QObject *obj;
     bool pending;
     CFRunLoopTimerRef runLoopTimer;
-    bool operator==(const MacTimerInfo &other)
+    bool operator==(const MacTimerInfo &other) const
     {
         return (id == other.id);
     }
diff --git a/src/widgets/widgets/qcombobox.cpp b/src/widgets/widgets/qcombobox.cpp
index bf6730e9e3..650227214a 100644
--- a/src/widgets/widgets/qcombobox.cpp
+++ b/src/widgets/widgets/qcombobox.cpp
@@ -80,6 +80,9 @@
 #if defined(Q_WS_S60)
 #include "private/qt_s60_p.h"
 #endif
+#ifndef QT_NO_ACCESSIBILITY
+#include "qaccessible.h"
+#endif
 
 QT_BEGIN_NAMESPACE
 
@@ -1018,6 +1021,9 @@ void QComboBoxPrivate::_q_dataChanged(const QModelIndex &topLeft, const QModelIn
         }
         q->update();
     }
+#ifndef QT_NO_ACCESSIBILITY
+        QAccessible::updateAccessibility(q, 0, QAccessible::NameChanged);
+#endif
 }
 
 void QComboBoxPrivate::_q_rowsInserted(const QModelIndex &parent, int start, int end)
@@ -1271,6 +1277,9 @@ void QComboBoxPrivate::_q_emitCurrentIndexChanged(const QModelIndex &index)
     Q_Q(QComboBox);
     emit q->currentIndexChanged(index.row());
     emit q->currentIndexChanged(itemText(index));
+#ifndef QT_NO_ACCESSIBILITY
+        QAccessible::updateAccessibility(q, 0, QAccessible::NameChanged);
+#endif
 }
 
 QString QComboBoxPrivate::itemText(const QModelIndex &index) const
@@ -2635,6 +2644,9 @@ void QComboBox::clear()
 {
     Q_D(QComboBox);
     d->model->removeRows(0, d->model->rowCount(d->root), d->root);
+#ifndef QT_NO_ACCESSIBILITY
+        QAccessible::updateAccessibility(this, 0, QAccessible::NameChanged);
+#endif
 }
 
 /*!
@@ -2651,6 +2663,9 @@ void QComboBox::clearEditText()
     Q_D(QComboBox);
     if (d->lineEdit)
         d->lineEdit->clear();
+#ifndef QT_NO_ACCESSIBILITY
+        QAccessible::updateAccessibility(this, 0, QAccessible::NameChanged);
+#endif
 }
 
 /*!
@@ -2661,6 +2676,9 @@ void QComboBox::setEditText(const QString &text)
     Q_D(QComboBox);
     if (d->lineEdit)
         d->lineEdit->setText(text);
+#ifndef QT_NO_ACCESSIBILITY
+        QAccessible::updateAccessibility(this, 0, QAccessible::NameChanged);
+#endif
 }
 
 /*!
diff --git a/src/widgets/widgets/qlabel.cpp b/src/widgets/widgets/qlabel.cpp
index 7db7b42ef2..fa75aeaebc 100644
--- a/src/widgets/widgets/qlabel.cpp
+++ b/src/widgets/widgets/qlabel.cpp
@@ -88,6 +88,13 @@ QT_BEGIN_NAMESPACE
             by clear().
     \endtable
 
+    \warning When passing a QString to the constructor or calling setText(),
+    make sure to sanitize your input, as QLabel tries to guess whether it
+    displays the text as plain text or as rich text. You may want to call
+    setTextFormat() explicitly, e.g. in case you expect the text to be in
+    plain format but cannot control the text source (for instance when
+    displaying data loaded from the Web).
+
     When the content is changed using any of these functions, any
     previous content is cleared.
 
diff --git a/src/widgets/widgets/qwidgetlinecontrol.cpp b/src/widgets/widgets/qwidgetlinecontrol.cpp
index fee401d6ae..28c0973e04 100644
--- a/src/widgets/widgets/qwidgetlinecontrol.cpp
+++ b/src/widgets/widgets/qwidgetlinecontrol.cpp
@@ -60,6 +60,28 @@
 QT_BEGIN_NAMESPACE
 
 /*!
+   \internal
+
+   Updates the internal text layout. Returns the ascent of the
+   created QTextLine.
+*/
+int QWidgetLineControl::redoTextLayout() const
+{
+    m_textLayout.clearLayout();
+
+    m_textLayout.beginLayout();
+    QTextLine l = m_textLayout.createLine();
+    m_textLayout.endLayout();
+
+#if defined(Q_WS_MAC)
+    if (m_threadChecks)
+        m_textLayoutThread = QThread::currentThread();
+#endif
+
+    return qRound(l.ascent());
+}
+
+/*!
     \internal
 
     Updates the display text based of the current edit text
@@ -92,15 +114,12 @@ void QWidgetLineControl::updateDisplayText(bool forceUpdate)
 
     m_textLayout.setText(str);
 
-    QTextOption option;
+    QTextOption option = m_textLayout.textOption();
     option.setTextDirection(m_layoutDirection);
     option.setFlags(QTextOption::IncludeTrailingSpaces);
     m_textLayout.setTextOption(option);
 
-    m_textLayout.beginLayout();
-    QTextLine l = m_textLayout.createLine();
-    m_textLayout.endLayout();
-    m_ascent = qRound(l.ascent());
+    m_ascent = redoTextLayout();
 
     if (str != orig || forceUpdate)
         emit displayTextChanged(str);
@@ -196,7 +215,7 @@ void QWidgetLineControl::del()
     if (hasSelectedText()) {
         removeSelectedText();
     } else {
-        int n = m_textLayout.nextCursorPosition(m_cursor) - m_cursor;
+        int n = textLayout()->nextCursorPosition(m_cursor) - m_cursor;
         while (n--)
             internalDelete();
     }
@@ -324,7 +343,7 @@ void QWidgetLineControl::updatePasswordEchoEditing(bool editing)
 */
 int QWidgetLineControl::xToPos(int x, QTextLine::CursorPosition betweenOrOn) const
 {
-    return m_textLayout.lineAt(0).xToCursor(x, betweenOrOn);
+    return textLayout()->lineAt(0).xToCursor(x, betweenOrOn);
 }
 
 /*!
@@ -335,7 +354,7 @@ int QWidgetLineControl::xToPos(int x, QTextLine::CursorPosition betweenOrOn) con
 */
 QRect QWidgetLineControl::cursorRect() const
 {
-    QTextLine l = m_textLayout.lineAt(0);
+    QTextLine l = textLayout()->lineAt(0);
     int c = m_cursor;
     if (m_preeditCursor != -1)
         c += m_preeditCursor;
@@ -538,14 +557,14 @@ void QWidgetLineControl::draw(QPainter *painter, const QPoint &offset, const QRe
     }
 
     if (flags & DrawText)
-        m_textLayout.draw(painter, offset, selections, clip);
+        textLayout()->draw(painter, offset, selections, clip);
 
     if (flags & DrawCursor){
         int cursor = m_cursor;
         if (m_preeditCursor != -1)
             cursor += m_preeditCursor;
         if (!m_hideCursor && (!m_blinkPeriod || m_blinkStatus))
-            m_textLayout.drawCursor(painter, offset, cursor, m_cursorWidth);
+            textLayout()->drawCursor(painter, offset, cursor, m_cursorWidth);
     }
 }
 
@@ -561,10 +580,10 @@ void QWidgetLineControl::selectWordAtPos(int cursor)
     int next = cursor + 1;
     if(next > end())
         --next;
-    int c = m_textLayout.previousCursorPosition(next, QTextLayout::SkipWords);
+    int c = textLayout()->previousCursorPosition(next, QTextLayout::SkipWords);
     moveCursor(c, false);
     // ## text layout should support end of words.
-    int end = m_textLayout.nextCursorPosition(c, QTextLayout::SkipWords);
+    int end = textLayout()->nextCursorPosition(c, QTextLayout::SkipWords);
     while (end > cursor && m_text[end-1].isSpace())
         --end;
     moveCursor(end, true);
@@ -1392,9 +1411,9 @@ bool QWidgetLineControl::processEvent(QEvent* ev)
         case QEvent::GraphicsSceneMouseRelease:
         case QEvent::GraphicsSceneMousePress:{
                QGraphicsSceneMouseEvent *gvEv = static_cast<QGraphicsSceneMouseEvent*>(ev);
-               QMouseEvent* mouse = new QMouseEvent(ev->type(),
+               QMouseEvent mouse(ev->type(),
                     gvEv->pos().toPoint(), gvEv->button(), gvEv->buttons(), gvEv->modifiers());
-               processMouseEvent(mouse); break;
+               processMouseEvent(&mouse); break;
         }
 #endif
         case QEvent::MouseButtonPress:
diff --git a/src/widgets/widgets/qwidgetlinecontrol_p.h b/src/widgets/widgets/qwidgetlinecontrol_p.h
index edc8d16e7f..2237c27887 100644
--- a/src/widgets/widgets/qwidgetlinecontrol_p.h
+++ b/src/widgets/widgets/qwidgetlinecontrol_p.h
@@ -64,6 +64,10 @@
 #include "QtGui/qclipboard.h"
 #include "QtCore/qpoint.h"
 #include "QtWidgets/qcompleter.h"
+#include "QtWidgets/qaccessible.h"
+#include "QtCore/qthread.h"
+
+#include "qplatformdefs.h"
 
 QT_BEGIN_HEADER
 
@@ -84,6 +88,13 @@ public:
         m_ascent(0), m_maxLength(32767), m_lastCursorPos(-1),
         m_tripleClickTimer(0), m_maskData(0), m_modifiedState(0), m_undoState(0),
         m_selstart(0), m_selend(0), m_passwordEchoEditing(false)
+#ifdef QT_GUI_PASSWORD_ECHO_DELAY
+        , m_passwordEchoTimer(0)
+#endif
+#if defined(Q_WS_MAC)
+        , m_threadChecks(false)
+        , m_textLayoutThread(0)
+ #endif
     {
         init(txt);
     }
@@ -319,11 +330,27 @@ public:
 
     bool processEvent(QEvent *ev);
 
-    QTextLayout *textLayout()
+    QTextLayout *textLayout() const
     {
+#if defined(Q_WS_MAC)
+        if (m_threadChecks && QThread::currentThread() != m_textLayoutThread)
+            redoTextLayout();
+#endif
         return &m_textLayout;
     }
 
+#if defined(Q_WS_MAC)
+    void setThreadChecks(bool threadChecks)
+    {
+        m_threadChecks = threadChecks;
+    }
+
+    bool threadChecks() const
+    {
+        return m_threadChecks;
+    }
+#endif
+
 private:
     void init(const QString &txt);
     void removeSelectedText();
@@ -420,12 +447,18 @@ private:
     QString stripString(const QString &str) const;
     int findInMask(int pos, bool forward, bool findSeparator, QChar searchChar = QChar()) const;
 
-    // complex text layout
-    QTextLayout m_textLayout;
+    // complex text layout (must be mutable so it can be reshaped at will)
+    mutable QTextLayout m_textLayout;
 
     bool m_passwordEchoEditing;
     QChar m_passwordCharacter;
 
+    int redoTextLayout() const;
+#if defined(Q_WS_MAC)
+    bool m_threadChecks;
+    mutable QThread *m_textLayoutThread;
+#endif
+
 Q_SIGNALS:
     void cursorPositionChanged(int, int);
     void selectionChanged();