Merge of the maemo-gestures branch onto qt/4.5.0

This is a squashed merge of all of the changes in the maemo-gestures
branch on-top of the qt/4.5.0 branch.

31 files changed, 2450 insertions, 6 deletions

diff --git a/src/corelib/global/qnamespace.h b/src/corelib/global/qnamespace.h
index 1635f8a..5747c3c 100644
--- a/src/corelib/global/qnamespace.h
+++ b/src/corelib/global/qnamespace.h
@@ -1550,6 +1550,21 @@ public:
         TouchPointStationary,
         TouchPointReleased
     };
+
+    typedef QString GestureType;
+    static const char UnknownGesture[] = "???";
+    static const char Tap[] = "Tap";
+    static const char DoubleTap[] = "DoubleTap";
+    static const char LongTap[] = "LongTap";
+    static const char Pan[] = "Pan";
+    static const char Pinch[] = "Pinch";
+
+    enum GestureState
+    {
+        GestureStarted = 0,
+        GestureFinished = 1
+    };
+
 }
 #ifdef Q_MOC_RUN
  ;
diff --git a/src/corelib/kernel/qcoreevent.h b/src/corelib/kernel/qcoreevent.h
index 42a75f8..c9f9f24 100644
--- a/src/corelib/kernel/qcoreevent.h
+++ b/src/corelib/kernel/qcoreevent.h
@@ -273,6 +273,8 @@ public:
         GraphicsSceneTouchUpdate = 197,
         GraphicsSceneTouchEnd = 198,
 
+        Gesture = 191,
+
         // 512 reserved for Qt Jambi's MetaCall event
         // 513 reserved for Qt Jambi's DeleteOnMainThread event
 
diff --git a/src/gui/graphicsview/qgraphicsitem.cpp b/src/gui/graphicsview/qgraphicsitem.cpp
index 3eef396..58f04f0 100644
--- a/src/gui/graphicsview/qgraphicsitem.cpp
+++ b/src/gui/graphicsview/qgraphicsitem.cpp
@@ -5788,6 +5788,20 @@ QVariant QGraphicsItem::inputMethodQuery(Qt::InputMethodQuery query) const
     return QVariant();
 }
 
+void QGraphicsItem::grabGesture(const Qt::GestureType &type)
+{
+    d_ptr->gestures.insert(type);
+    if (d_ptr->scene)
+        d_ptr->scene->d_func()->grabGesture(this, type);
+}
+
+void QGraphicsItem::releaseGesture(const Qt::GestureType &type)
+{
+    d_ptr->gestures.remove(type);
+    if (d_ptr->scene)
+        d_ptr->scene->d_func()->releaseGesture(this, type);
+}
+
 /*!
     This virtual function is called by QGraphicsItem to notify custom items
     that some part of the item's state changes. By reimplementing this
@@ -5812,6 +5826,20 @@ QVariant QGraphicsItem::inputMethodQuery(Qt::InputMethodQuery query) const
 QVariant QGraphicsItem::itemChange(GraphicsItemChange change, const QVariant &value)
 {
     Q_UNUSED(change);
+    if (change == QGraphicsItem::ItemSceneChange) {
+        if (!qVariantValue<QGraphicsScene*>(value)) {
+            // the item has been removed from a scene, unsubscribe gestures.
+            Q_ASSERT(d_ptr->scene);
+            foreach(const Qt::GestureType &gesture, d_ptr->gestures)
+                d_ptr->scene->d_func()->releaseGesture(this, gesture);
+        }
+    } else if (change == QGraphicsItem::ItemSceneHasChanged) {
+        if (QGraphicsScene *scene = qVariantValue<QGraphicsScene*>(value)) {
+            // item has been added to the scene
+            foreach(const Qt::GestureType &gesture, d_ptr->gestures)
+                scene->d_func()->grabGesture(this, gesture);
+        }
+    }
     return value;
 }
 
diff --git a/src/gui/graphicsview/qgraphicsitem.h b/src/gui/graphicsview/qgraphicsitem.h
index ec3373a..42a5110 100644
--- a/src/gui/graphicsview/qgraphicsitem.h
+++ b/src/gui/graphicsview/qgraphicsitem.h
@@ -338,6 +338,9 @@ public:
     QVariant data(int key) const;
     void setData(int key, const QVariant &value);
 
+    void grabGesture(const Qt::GestureType &type);
+    void releaseGesture(const Qt::GestureType &type);
+
     enum {
         Type = 1,
         UserType = 65536
diff --git a/src/gui/graphicsview/qgraphicsitem_p.h b/src/gui/graphicsview/qgraphicsitem_p.h
index 5e77dfd..a67a49a 100644
--- a/src/gui/graphicsview/qgraphicsitem_p.h
+++ b/src/gui/graphicsview/qgraphicsitem_p.h
@@ -54,6 +54,7 @@
 //
 
 #include "qgraphicsitem.h"
+#include "qset.h"
 
 #if !defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW
 
@@ -297,6 +298,7 @@ public:
     int siblingIndex;
     int index;
     int depth;
+    QSet<Qt::GestureType> gestures;
 
     // Packed 32 bytes
     quint32 acceptedMouseButtons : 5;
diff --git a/src/gui/graphicsview/qgraphicsscene.cpp b/src/gui/graphicsview/qgraphicsscene.cpp
index f322305..fe6dde1 100644
--- a/src/gui/graphicsview/qgraphicsscene.cpp
+++ b/src/gui/graphicsview/qgraphicsscene.cpp
@@ -3950,6 +3950,9 @@ bool QGraphicsScene::event(QEvent *event)
         // geometries that do not have an explicit style set.
         update();
         break;
+    case QEvent::Gesture:
+        gestureEvent(static_cast<QGestureEvent*>(event));
+        break;
     case QEvent::GraphicsSceneTouchBegin:
         d->touchBeginEvent(static_cast<QGraphicsSceneTouchEvent *>(event));
         break;
@@ -5586,6 +5589,65 @@ void QGraphicsScene::setActiveWindow(QGraphicsWidget *widget)
     }
 }
 
+void QGraphicsScenePrivate::addView(QGraphicsView *view)
+{
+    views << view;
+    foreach(const Qt::GestureType &gesture, grabbedGestures)
+        view->grabGesture(gesture);
+}
+
+void QGraphicsScenePrivate::removeView(QGraphicsView *view)
+{
+    views.removeAll(view);
+    foreach(const Qt::GestureType &gesture, grabbedGestures)
+        view->releaseGesture(gesture);
+}
+
+void QGraphicsScenePrivate::sendGestureEvent(QGraphicsItem *item, QGestureEvent *event)
+{
+    //### TODO: position translation
+    sendEvent(item, event);
+}
+
+void QGraphicsScene::gestureEvent(QGestureEvent *event)
+{
+    Q_D(QGraphicsScene);
+    QList<Qt::GestureType> gestureTypes = event->gestureTypes();
+    QList<QPointF> pts;
+    QGraphicsView *view = qobject_cast<QGraphicsView*>(event->targetWidget());
+    if (!view) {
+        // something is wrong.
+        Q_ASSERT(view);
+        return;
+    }
+    foreach(const Qt::GestureType &type, gestureTypes)
+        pts << view->mapToScene(event->gesture(type)->hotSpot());
+    foreach(QGraphicsItem *item, d->itemsWithGestures) {
+        for (int i = 0; i < pts.size(); ++i) {
+            if (item->contains(item->mapFromScene(pts.at(i)))) {
+                d->sendGestureEvent(item, event);
+                if (event->isAccepted())
+                    break;
+            }
+        }
+    }
+}
+
+void QGraphicsScenePrivate::grabGesture(QGraphicsItem *item, const Qt::GestureType &type)
+{
+    if (!grabbedGestures.contains(type)) {
+        foreach(QGraphicsView *view, views)
+            view->grabGesture(type);
+    }
+    itemsWithGestures << item;
+    grabbedGestures << type;
+}
+
+void QGraphicsScenePrivate::releaseGesture(QGraphicsItem *item, const Qt::GestureType &type)
+{
+    //###
+}
+
 // ### FIXME: the code for touch event support is mosly copied from
 // ### QGraphicsScenePrivate::mousePressEventHandler() and friends, need to
 // ### refactor to reduce code duplication
diff --git a/src/gui/graphicsview/qgraphicsscene.h b/src/gui/graphicsview/qgraphicsscene.h
index 9802f87..4680455 100644
--- a/src/gui/graphicsview/qgraphicsscene.h
+++ b/src/gui/graphicsview/qgraphicsscene.h
@@ -50,6 +50,7 @@
 #include <QtGui/qtransform.h>
 #include <QtGui/qmatrix.h>
 #include <QtGui/qpen.h>
+#include <QtGui/qevent.h>
 
 QT_BEGIN_HEADER
 
@@ -254,6 +255,7 @@ protected:
     virtual void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);
     virtual void wheelEvent(QGraphicsSceneWheelEvent *event);
     virtual void inputMethodEvent(QInputMethodEvent *event);
+    virtual void gestureEvent(QGestureEvent *event);
 
     virtual void drawBackground(QPainter *painter, const QRectF &rect);
     virtual void drawForeground(QPainter *painter, const QRectF &rect);
diff --git a/src/gui/graphicsview/qgraphicsscene_p.h b/src/gui/graphicsview/qgraphicsscene_p.h
index de39205..cea0553 100644
--- a/src/gui/graphicsview/qgraphicsscene_p.h
+++ b/src/gui/graphicsview/qgraphicsscene_p.h
@@ -182,6 +182,9 @@ public:
     void storeMouseButtonsForMouseGrabber(QGraphicsSceneMouseEvent *event);
 
     QList<QGraphicsView *> views;
+    void addView(QGraphicsView *view);
+    void removeView(QGraphicsView *view);
+
     bool painterStateProtection;
 
     QMultiMap<QGraphicsItem *, QGraphicsItem *> sceneEventFilters;
@@ -264,6 +267,12 @@ public:
     void resolvePalette();
     void updatePalette(const QPalette &palette);
 
+    QSet<QGraphicsItem*> itemsWithGestures;
+    QSet<Qt::GestureType> grabbedGestures;
+    void grabGesture(QGraphicsItem *item, const Qt::GestureType &type);
+    void releaseGesture(QGraphicsItem *item, const Qt::GestureType &type);
+    void sendGestureEvent(QGraphicsItem *item, QGestureEvent *event);
+
     mutable QVector<QTransform> sceneTransformCache;
     mutable QBitArray validTransforms;
     mutable QVector<int> freeSceneTransformSlots;
diff --git a/src/gui/graphicsview/qgraphicsview.cpp b/src/gui/graphicsview/qgraphicsview.cpp
index 1aaaab9..acce717 100644
--- a/src/gui/graphicsview/qgraphicsview.cpp
+++ b/src/gui/graphicsview/qgraphicsview.cpp
@@ -1690,7 +1690,7 @@ void QGraphicsView::setScene(QGraphicsScene *scene)
                    this, SLOT(updateScene(QList<QRectF>)));
         disconnect(d->scene, SIGNAL(sceneRectChanged(QRectF)),
                    this, SLOT(updateSceneRect(QRectF)));
-        d->scene->d_func()->views.removeAll(this);
+        d->scene->d_func()->removeView(this);
     }
 
     // Assign the new scene and update the contents (scrollbars, etc.)).
@@ -1698,7 +1698,7 @@ void QGraphicsView::setScene(QGraphicsScene *scene)
         connect(d->scene, SIGNAL(sceneRectChanged(QRectF)),
                 this, SLOT(updateSceneRect(QRectF)));
         d->updateSceneSlotReimplementedChecked = false;
-        d->scene->d_func()->views << this;
+        d->scene->d_func()->addView(this);
         d->recalculateContentSize();
         d->lastCenterPoint = sceneRect().center();
         d->keepLastCenterPoint = true;
@@ -2860,6 +2860,11 @@ bool QGraphicsView::event(QEvent *event)
                 }
             }
             break;
+        case QEvent::Gesture:
+            QApplication::sendEvent(d->scene, event);
+            if (event->isAccepted())
+                return true;
+            break;
         default:
             break;
         }
diff --git a/src/gui/kernel/kernel.pri b/src/gui/kernel/kernel.pri
index a1b982a..b6ef6b2 100644
--- a/src/gui/kernel/kernel.pri
+++ b/src/gui/kernel/kernel.pri
@@ -41,7 +41,13 @@ HEADERS += \
 	kernel/qwidgetaction.h \
 	kernel/qwidgetaction_p.h \
 	kernel/qwindowdefs.h \
-	kernel/qkeymapper_p.h
+	kernel/qkeymapper_p.h \
+	kernel/qgesture.h \
+	kernel/qgesturemanager_p.h \
+	kernel/qgesturerecognizer.h \
+	kernel/qgesturestandardrecognizers_p.h \
+	kernel/qdirectionrecognizer_p.h \
+	kernel/qdirectionsimplificator_p.h
 
 SOURCES += \
 	kernel/qaction.cpp \
@@ -70,7 +76,11 @@ SOURCES += \
 	kernel/qwhatsthis.cpp \
 	kernel/qwidget.cpp \
 	kernel/qwidgetaction.cpp \
-	kernel/qkeymapper.cpp
+	kernel/qkeymapper.cpp \
+	kernel/qgesture.cpp \
+	kernel/qgesturemanager.cpp \
+	kernel/qgesturestandardrecognizers.cpp \
+	kernel/qdirectionrecognizer.cpp
 
 win32 {
 	DEFINES += QT_NO_DIRECTDRAW
diff --git a/src/gui/kernel/qapplication.cpp b/src/gui/kernel/qapplication.cpp
index 1f4e1fe..b39cbc3 100644
--- a/src/gui/kernel/qapplication.cpp
+++ b/src/gui/kernel/qapplication.cpp
@@ -90,6 +90,8 @@
 
 #include "qapplication.h"
 
+#include <private/qgesturemanager_p.h>
+
 #ifdef Q_WS_WINCE
 #include "qdatetime.h"
 #include "qguifunctions_wince.h"
@@ -98,6 +100,8 @@ extern bool qt_wince_is_mobile();     //qguifunctions_wince.cpp
 extern bool qt_wince_is_pocket_pc();  //qguifunctions_wince.cpp
 #endif
 
+#include "qdatetime.h"
+
 //#define ALIEN_DEBUG
 
 static void initResources()
@@ -133,6 +137,8 @@ int QApplicationPrivate::autoMaximizeThreshold = -1;
 bool QApplicationPrivate::autoSipEnabled = false;
 #endif
 
+QGestureManager *gestureManager = 0;
+
 QApplicationPrivate::QApplicationPrivate(int &argc, char **argv, QApplication::Type type)
     : QCoreApplicationPrivate(argc, argv)
 {
@@ -3700,6 +3706,27 @@ bool QApplication::notify(QObject *receiver, QEvent *e)
             QMouseEvent* mouse = static_cast<QMouseEvent*>(e);
             QPoint relpos = mouse->pos();
 
+            if (QApplication::testAttribute(Qt::AA_EnableGestures)) {
+                if (!gestureManager)
+                    gestureManager = new QGestureManager;
+                // if we are in gesture mode, we send all mouse events
+                // directly to gesture recognizer.
+                if (gestureManager->inGestureMode()) {
+                    // ### should I send events through all application event filters?
+                    if (gestureManager->filterEvent(e))
+                        return true;
+                }
+                if (w && (mouse->type() != QEvent::MouseMove || mouse->buttons() != 0)) {
+                    // find the gesture target widget
+                    QWidget *target = w;
+                    while (target && target->gestures().isEmpty())
+                        target = target->parentWidget();
+                    if (target) {
+                        gestureManager->setGestureTargetWidget(target);
+                        res = gestureManager->filterEvent(e);
+                    }
+                }
+            }
             if (e->spontaneous()) {
                 if (e->type() == QEvent::MouseButtonPress) {
                     QApplicationPrivate::giveFocusAccordingToFocusPolicy(w,
@@ -3993,6 +4020,35 @@ bool QApplication::notify(QObject *receiver, QEvent *e)
         }
         break;
 #endif
+
+    case QEvent::Gesture: {
+        QWidget *w = static_cast<QWidget*>(receiver);
+        QGestureEvent *g = static_cast<QGestureEvent*>(e);
+        bool eventAccepted = g->isAccepted();
+        // Q_ASSERT(g->gesture() != 0);
+        // const QGesture &gesture = *g->gesture();
+        QPoint relPos(0,0);
+        while (w) {
+            // QGesture qge(gesture.gestureType(), gesture.startPos()+relPos, gesture.lastPos()+relPos,
+            //              gesture.currentPos()+relPos, gesture.direction(), gesture.rect().translated(relPos),
+            //              gesture.hotSpot()+relPos, gesture.state(), gesture.startTime());
+            // QGestureEvent ge(&qge, false);
+            // ### TODO: fix widget-relative positions in gesture event.
+            QGestureEvent ge = *g;
+            ge.m_targetWidget = w;
+            ge.spont = g->spontaneous();
+            res = d->notify_helper(w, w == receiver ? g : &ge);
+            g->spont = false;
+            eventAccepted = (w == receiver ? g : &ge)->isAccepted();
+            if (res && eventAccepted)
+                break;
+            if (w->isWindow())
+                break;
+            relPos += w->pos();
+            w = w->parentWidget();
+        }
+        break;
+    }
     case QEvent::TouchBegin:
     // Note: TouchUpdate and TouchEnd events are sent to d->currentMultitouchWidget and never propagated
     {
@@ -4000,7 +4056,6 @@ bool QApplication::notify(QObject *receiver, QEvent *e)
         QWidget *origin = widget;
         QTouchEvent *touchEvent = static_cast<QTouchEvent *>(e);
         bool eventAccepted = touchEvent->isAccepted();
-
         if (widget->testAttribute(Qt::WA_AcceptTouchEvents) && e->spontaneous()) {
             // give the widget focus if the focus policy allows it
             QApplicationPrivate::giveFocusAccordingToFocusPolicy(widget,
diff --git a/src/gui/kernel/qapplication.h b/src/gui/kernel/qapplication.h
index 2baf6dc..634226f 100644
--- a/src/gui/kernel/qapplication.h
+++ b/src/gui/kernel/qapplication.h
@@ -374,6 +374,7 @@ private:
     friend class QDirectPainter;
     friend class QDirectPainterPrivate;
 #endif
+    friend class QGestureManager;
 
 #if defined(Q_WS_WIN)
     friend QApplicationPrivate* getQApplicationPrivateInternal();
diff --git a/src/gui/kernel/qapplication_p.h b/src/gui/kernel/qapplication_p.h
index 1a2bad2..40e928d 100644
--- a/src/gui/kernel/qapplication_p.h
+++ b/src/gui/kernel/qapplication_p.h
@@ -428,6 +428,7 @@ public:
     void sendSyntheticEnterLeave(QWidget *widget);
 #endif
 
+    QMap<Qt::GestureType, int> grabbedGestures;
     static void updateTouchPointsForWidget(QWidget *widget, QTouchEvent *touchEvent);
 
 #if defined(Q_WS_WIN)
diff --git a/src/gui/kernel/qapplication_x11.cpp b/src/gui/kernel/qapplication_x11.cpp
index 90376b3..060e948 100644
--- a/src/gui/kernel/qapplication_x11.cpp
+++ b/src/gui/kernel/qapplication_x11.cpp
@@ -4414,7 +4414,6 @@ bool QETWidget::translateMouseEvent(const XEvent *event)
         QMouseEvent e(type, pos, globalPos, button, buttons, modifiers);
         QApplicationPrivate::sendMouseEvent(widget, &e, alienWidget, this, &qt_button_down,
                                             qt_last_mouse_receiver);
-
         if (type == QEvent::MouseButtonPress
             && button == Qt::RightButton
             && (openPopupCount == oldOpenPopupCount)) {
@@ -5022,6 +5021,7 @@ bool QETWidget::translatePropertyEvent(const XEvent *event)
     return true;
 }
 
+
 //
 // Paint event translation
 //
diff --git a/src/gui/kernel/qdirectionrecognizer.cpp b/src/gui/kernel/qdirectionrecognizer.cpp
new file mode 100644
index 0000000..37b64e7
--- /dev/null
+++ b/src/gui/kernel/qdirectionrecognizer.cpp
@@ -0,0 +1,176 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the $MODULE$ of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qdirectionrecognizer_p.h"
+
+#include <math.h>
+
+QT_BEGIN_NAMESPACE
+
+static const int SIZE = 20;
+
+QDirectionSimpleRecognizer::QDirectionSimpleRecognizer()
+{
+}
+
+Direction QDirectionSimpleRecognizer::addPosition(const QPoint &pos)
+{
+    if (!directions.isEmpty()) {
+        const QPoint tmp = pos - directions.back().point;
+        if (tmp.manhattanLength() < 5)
+            return Direction();
+    }
+    if (lastPoint.isNull()) {
+        lastPoint = pos;
+        return Direction();
+    }
+    int dx = pos.x() - lastPoint.x();
+    int dy = pos.y() - lastPoint.y();
+    Direction::DirectionType direction = Direction::None;
+    if (dx < 0) {
+        if (-1*dx >= SIZE/2)
+            direction = Direction::Left;
+    } else {
+        if (dx >= SIZE/2)
+            direction = Direction::Right;
+    }
+    if (dy < 0) {
+        if (-1*dy >= SIZE/2)
+            direction = Direction::Up;
+    } else {
+        if (dy >= SIZE/2)
+            direction = Direction::Down;
+    }
+    if (direction == Direction::None)
+        return Direction();
+
+    lastPoint = pos;
+    directions.push_back(Direction(direction, pos));
+    return Direction(direction, pos);
+}
+
+
+DirectionList QDirectionSimpleRecognizer::getDirections() const
+{
+    return directions;
+}
+
+void QDirectionSimpleRecognizer::reset()
+{
+    directions.clear();
+    lastPoint = QPoint();
+}
+
+
+/// QDirectionDiagonalRecognizer
+
+QDirectionDiagonalRecognizer::QDirectionDiagonalRecognizer()
+{
+}
+
+Direction QDirectionDiagonalRecognizer::addPosition(const QPoint &pos)
+{
+    if (!directions.isEmpty()) {
+        const QPoint tmp = pos - directions.back().point;
+        if (tmp.manhattanLength() < 5)
+            return Direction();
+    }
+    if (lastPoint.isNull()) {
+        lastPoint = pos;
+        return Direction();
+    }
+    int dx = pos.x() - lastPoint.x();
+    int dy = pos.y() - lastPoint.y();
+    int distance = sqrt(static_cast<double>(dx*dx + dy*dy));
+    if (distance < SIZE/2)
+        return Direction();
+
+    Direction::DirectionType direction = Direction::None;
+    double angle = atan(1.0*qAbs(lastPoint.y() - pos.y())/qAbs(pos.x() - lastPoint.x())) * 180. / M_PI;
+    if (dx < 0 && dy <= 0) {
+        angle = 180 - angle;
+    } else if (dx <= 0 && dy > 0) {
+        angle += 180;
+    } else if (dx > 0 && dy > 0) {
+        angle = 360-angle;
+    }
+    if (angle < 0)
+        angle += 360;
+    if (angle <= 20)
+        direction = Direction::Right;
+    else if (angle <= 65)
+        direction = Direction::RightUp;
+    else if (angle <= 110)
+        direction = Direction::Up;
+    else if (angle <= 155)
+        direction = Direction::LeftUp;
+    else if (angle <= 200)
+        direction = Direction::Left;
+    else if (angle <= 245)
+        direction = Direction::LeftDown;
+    else if (angle <= 290)
+        direction = Direction::Down;
+    else if (angle <= 335)
+        direction = Direction::RightDown;
+    else
+        direction = Direction::Right;
+
+    if (direction == Direction::None)
+        return Direction();
+
+    lastPoint = pos;
+    directions.push_back(Direction(direction, pos));
+    return Direction(direction, pos);
+}
+
+
+DirectionList QDirectionDiagonalRecognizer::getDirections() const
+{
+    return directions;
+}
+
+void QDirectionDiagonalRecognizer::reset()
+{
+    directions.clear();
+    lastPoint = QPoint();
+}
+
+QT_END_NAMESPACE
diff --git a/src/gui/kernel/qdirectionrecognizer_p.h b/src/gui/kernel/qdirectionrecognizer_p.h
new file mode 100644
index 0000000..6390990
--- /dev/null
+++ b/src/gui/kernel/qdirectionrecognizer_p.h
@@ -0,0 +1,121 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the $MODULE$ of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QDIRECTIONRECOGNIZER_P_H
+#define QDIRECTIONRECOGNIZER_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qpoint.h"
+#include "qlist.h"
+
+QT_BEGIN_NAMESPACE
+
+struct Direction
+{
+    enum DirectionType
+    {
+        None = 0,
+        LeftDown = 1,
+        DownLeft = LeftDown,
+        Down = 2,
+        RightDown = 3,
+        DownRight = RightDown,
+        Left = 4,
+        Right = 6,
+        LeftUp = 7,
+        UpLeft = LeftUp,
+        Up = 8,
+        RightUp = 9,
+        UpRight = RightUp
+    };
+    DirectionType direction;
+    QPoint point;
+
+    Direction(DirectionType dir, const QPoint &pt)
+        : direction(dir), point(pt) { }
+    Direction()
+        : direction(None) { }
+
+    inline bool isEmpty() const { return direction == None; }
+    inline bool isNull() const { return direction == None; }
+};
+
+typedef QList<Direction> DirectionList;
+
+class QDirectionSimpleRecognizer
+{
+public:
+    QDirectionSimpleRecognizer();
+    Direction addPosition(const QPoint &pos);
+    DirectionList getDirections() const;
+    void reset();
+
+private:
+    QPoint lastPoint;
+    DirectionList directions;
+};
+
+class QDirectionDiagonalRecognizer
+{
+public:
+    QDirectionDiagonalRecognizer();
+    Direction addPosition(const QPoint &pos);
+    DirectionList getDirections() const;
+    void reset();
+
+private:
+    QPoint lastPoint;
+    DirectionList directions;
+};
+
+QT_END_NAMESPACE
+
+#endif // QDIRECTIONRECOGNIZER_P_H
diff --git a/src/gui/kernel/qdirectionsimplificator_p.h b/src/gui/kernel/qdirectionsimplificator_p.h
new file mode 100644
index 0000000..7b71ca0
--- /dev/null
+++ b/src/gui/kernel/qdirectionsimplificator_p.h
@@ -0,0 +1,172 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the $MODULE$ of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QDIRECTIONSIMPLIFICATOR_P_H
+#define QDIRECTIONSIMPLIFICATOR_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "private/qdirectionrecognizer_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class QDirectionSimplificator
+{
+public:
+    QDirectionSimplificator(const DirectionList &dir);
+
+    bool simplify(DirectionList *result);
+
+private:
+    DirectionList directions;
+    DirectionList lastResult;
+    enum State {
+        None,
+        Trim, // remove first and last element
+        AccidentalMoves, // 66866 => 6666
+        ComplexAccidentalMoves, // 778788 => 777888 (swapping elements without changing direction)
+        ShortMoves, // (moves of length 1)
+    } state;
+
+    struct SimplifyTrim
+    {
+        SimplifyTrim() : state(0) { }
+        bool operator()(DirectionList &directions)
+        {
+            if (state == 0) {
+                directions.removeFirst();
+                state = 1;
+            } else if (state == 1) {
+                directions.removeLast();
+                state = 2;
+            } else if (state == 2 && directions.size() >= 2) {
+                directions.removeFirst();
+                directions.removeLast();
+                state = 3;
+            } else {
+                return false;
+            }
+            return true;
+        }
+        int state;
+    };
+    struct SimplifyAccidentalMoves
+    {
+        SimplifyAccidentalMoves() : state(0) { }
+        bool operator()(DirectionList &directions)
+        {
+            return false;
+        }
+        int state;
+    };
+    struct SimplifyComplexAccidentalMoves
+    {
+        SimplifyComplexAccidentalMoves() : state(0) { }
+        bool operator()(DirectionList &directions)
+        {
+            return false;
+        }
+        int state;
+    };
+
+    SimplifyTrim trim;
+    SimplifyAccidentalMoves accidentalMoves;
+    SimplifyComplexAccidentalMoves complexAccidentalMoves;
+    //SimplifyShortMoves shortMoves;
+};
+
+QDirectionSimplificator::QDirectionSimplificator(const DirectionList &dir)
+    : directions(dir), state(None)
+{
+}
+
+bool QDirectionSimplificator::simplify(DirectionList *result)
+{
+    if (directions.isEmpty() || !result)
+        return false;
+    *result = directions;
+    switch(state) {
+    case None:
+        state = Trim;
+        trim = SimplifyTrim();
+    case Trim:
+        if (trim(*result))
+            break;
+        *result = lastResult;
+        state = AccidentalMoves;
+        accidentalMoves = SimplifyAccidentalMoves();
+    case AccidentalMoves:
+        if (accidentalMoves(*result))
+            break;
+        *result = lastResult;
+        state = ComplexAccidentalMoves;
+        complexAccidentalMoves = SimplifyComplexAccidentalMoves();
+    case ComplexAccidentalMoves:
+        if (complexAccidentalMoves(*result))
+            break;
+        *result = lastResult;
+    //     state = ShortMoves;
+    //     shortMoves = SimplifyShortMoves();
+    // case ShortMoves:
+    //     if (shortMoves(*result))
+    //         break;
+    //     state = None;
+    default:
+        return false;
+    }
+    lastResult = *result;
+    if (lastResult.isEmpty())
+        return false;
+    return true;
+}
+
+QT_END_NAMESPACE
+
+#endif // QDIRECTIONSIMPLIFICATOR_P_H
diff --git a/src/gui/kernel/qevent.cpp b/src/gui/kernel/qevent.cpp
index d571212..a7e1101 100644
--- a/src/gui/kernel/qevent.cpp
+++ b/src/gui/kernel/qevent.cpp
@@ -3310,6 +3310,9 @@ QDebug operator<<(QDebug dbg, const QEvent *e) {
     case QEvent::ChildRemoved: n = n ? n : "ChildRemoved";
         dbg.nospace() << "QChildEvent(" << n << ", " << (static_cast<const QChildEvent*>(e))->child();
         return dbg.space();
+    case QEvent::Gesture:
+        n = "Gesture";
+        break;
     default:
         dbg.nospace() << "QEvent(" << (const void *)e << ", type = " << e->type() << ')';
         return dbg.space();
@@ -3506,6 +3509,27 @@ QMenubarUpdatedEvent::QMenubarUpdatedEvent(QMenuBar * const menuBar)
 
 #endif
 
+QGestureEvent::QGestureEvent(QWidget *targetWidget, const QList<QGesture*> &gestures,
+                             const QSet<Qt::GestureType> &cancelledGestures)
+    : QEvent(QEvent::Gesture), m_targetWidget(targetWidget),
+      m_cancelledGestures(cancelledGestures)
+{
+    foreach(QGesture *r, gestures)
+        m_gestures.insert(r->gestureType(), QSharedPointer<QGesture>(r));
+}
+
+QGestureEvent::QGestureEvent(const QGestureEvent &event, const QPoint &offset)
+    : QEvent(QEvent::Gesture), m_targetWidget(event.m_targetWidget),
+      m_gestures(event.m_gestures),
+      m_cancelledGestures(event.m_cancelledGestures)
+{
+    //### use offset!
+}
+
+QGestureEvent::~QGestureEvent()
+{
+}
+
 /*! \class QTouchEvent
     \brief The QTouchEvent class contains parameters that describe a touch event
 .
diff --git a/src/gui/kernel/qevent.h b/src/gui/kernel/qevent.h
index e9a1386..858e2ea 100644
--- a/src/gui/kernel/qevent.h
+++ b/src/gui/kernel/qevent.h
@@ -52,6 +52,10 @@
 #include <QtGui/qmime.h>
 #include <QtGui/qdrag.h>
 #include <QtCore/qvariant.h>
+#include <QtCore/qmap.h>
+#include <QtCore/qset.h>
+#include <QtCore/qsharedpointer.h>
+#include <QtGui/qgesture.h>
 
 QT_BEGIN_HEADER
 
@@ -710,6 +714,36 @@ private:
 };
 #endif
 
+class Q_GUI_EXPORT QGestureEvent : public QEvent
+{
+public:
+    QGestureEvent(QWidget *targetWidget, const QList<QGesture*> &gestures,
+                  const QSet<Qt::GestureType> &cancelledGestures = QSet<Qt::GestureType>());
+    // internal ctor
+    QGestureEvent(const QGestureEvent &gestures, const QPoint &offset);
+    ~QGestureEvent();
+
+    QWidget *targetWidget() const
+    { return m_targetWidget; }
+
+    inline bool contains(const Qt::GestureType &gestureType) const
+    { return gesture(gestureType) != 0; }
+    inline QList<Qt::GestureType> gestureTypes() const
+    { return m_gestures.keys(); }
+    inline const QGesture* gesture(const Qt::GestureType &gestureType) const
+    { return m_gestures.value(gestureType, QSharedPointer<QGesture>()).data(); }
+
+    inline QSet<Qt::GestureType> cancelledGestures() const
+    { return m_cancelledGestures; }
+
+protected:
+    QWidget *m_targetWidget;
+    QHash<Qt::GestureType, QSharedPointer<QGesture> > m_gestures;
+    QSet<Qt::GestureType> m_cancelledGestures;
+
+    friend class QApplication;
+};
+
 #ifndef QT_NO_DEBUG_STREAM
 Q_GUI_EXPORT QDebug operator<<(QDebug, const QEvent *);
 #endif
diff --git a/src/gui/kernel/qgesture.cpp b/src/gui/kernel/qgesture.cpp
new file mode 100644
index 0000000..fbabb8f
--- /dev/null
+++ b/src/gui/kernel/qgesture.cpp
@@ -0,0 +1,133 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the $MODULE$ of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qgesture.h"
+#include <private/qgesture_p.h>
+
+QGesture::QGesture(const Qt::GestureType &type, Qt::GestureState state)
+    : d(new QGesturePrivate), gestureType_(type), gestureState_(state)
+{
+}
+
+QGesture::QGesture(const Qt::GestureType &type, const QPoint &startPos,
+                   const QPoint &lastPos, const QPoint &pos, const QRect &rect,
+                   const QPoint &hotSpot, const QDateTime &startTime,
+                   uint duration, Qt::GestureState state)
+    : d(new QGesturePrivate), gestureType_(type), gestureState_(state)
+{
+    d->init(startPos, lastPos, pos, rect, hotSpot, startTime, duration);
+}
+
+QGesture::QGesture(QGesturePrivate &dd, const Qt::GestureType &type,
+                   Qt::GestureState state)
+    : d(&dd), gestureType_(type), gestureState_(state)
+{
+}
+
+QGesture::~QGesture()
+{
+    delete d; d = 0;
+}
+
+QRect QGesture::rect() const
+{
+    return d->rect;
+}
+
+QPoint QGesture::hotSpot() const
+{
+    return d->hotSpot;
+}
+
+QDateTime QGesture::startTime() const
+{
+    return d->startTime;
+}
+
+uint QGesture::duration() const
+{
+    return d->duration;
+}
+
+QPoint QGesture::startPos() const
+{
+    return d->startPos;
+}
+
+QPoint QGesture::lastPos() const
+{
+    return d->lastPos;
+}
+
+QPoint QGesture::pos() const
+{
+    return d->pos;
+}
+
+QPannableGesture::QPannableGesture(const Qt::GestureType &type, Qt::GestureState state)
+    : QGesture(*new QPannableGesturePrivate, type, state)
+{
+}
+
+QPannableGesture::QPannableGesture(const Qt::GestureType &type, const QPoint &startPos,
+                   const QPoint &lastPos, const QPoint &pos, const QRect &rect,
+                   const QPoint &hotSpot, const QDateTime &startTime,
+                   uint duration, Qt::GestureState state)
+    : QGesture(*new QPannableGesturePrivate, type, state)
+{
+    d->init(startPos, lastPos, pos, rect, hotSpot, startTime, duration);
+    ((QPannableGesturePrivate*)d)->lastDirection = QPannableGesture::None;
+    ((QPannableGesturePrivate*)d)->direction = QPannableGesture::None;
+}
+
+QPannableGesture::~QPannableGesture()
+{
+}
+
+QPannableGesture::DirectionType QPannableGesture::lastDirection() const
+{
+    return ((QPannableGesturePrivate*)d)->lastDirection;
+}
+
+QPannableGesture::DirectionType QPannableGesture::direction() const
+{
+    return ((QPannableGesturePrivate*)d)->direction;
+}
diff --git a/src/gui/kernel/qgesture.h b/src/gui/kernel/qgesture.h
new file mode 100644
index 0000000..16a5704
--- /dev/null
+++ b/src/gui/kernel/qgesture.h
@@ -0,0 +1,128 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the $MODULE$ of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QGESTURE_H
+#define QGESTURE_H
+
+#include "qobject.h"
+#include "qlist.h"
+#include "qdatetime.h"
+#include "qpoint.h"
+#include "qrect.h"
+#include "qsharedpointer.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+class QGesturePrivate;
+class Q_GUI_EXPORT QGesture
+{
+public:
+    explicit QGesture(const Qt::GestureType &type, Qt::GestureState state = Qt::GestureStarted);
+    QGesture(const Qt::GestureType &type, const QPoint &startPos,
+             const QPoint &lastPos, const QPoint &pos, const QRect &rect,
+             const QPoint &hotSpot, const QDateTime &startTime,
+             uint duration, Qt::GestureState state);
+    virtual ~QGesture();
+
+    inline Qt::GestureType gestureType() const { return gestureType_; }
+    inline Qt::GestureState state() const { return gestureState_; }
+
+    QRect rect() const;
+    QPoint hotSpot() const;
+    QDateTime startTime() const;
+    uint duration() const;
+
+    QPoint startPos() const;
+    QPoint lastPos() const;
+    QPoint pos() const;
+
+protected:
+    QGesture(QGesturePrivate &dd, const Qt::GestureType &type, Qt::GestureState state = Qt::GestureStarted);
+    QGesturePrivate *d;
+
+private:
+    Qt::GestureType gestureType_;
+    Qt::GestureState gestureState_;
+};
+
+class Q_GUI_EXPORT QPannableGesture : public QGesture
+{
+public:
+    enum DirectionType
+    {
+        None = 0,
+        LeftDown = 1,
+        DownLeft = LeftDown,
+        Down = 2,
+        RightDown = 3,
+        DownRight = RightDown,
+        Left = 4,
+        Right = 6,
+        LeftUp = 7,
+        UpLeft = LeftUp,
+        Up = 8,
+        RightUp = 9,
+        UpRight = RightUp
+    };
+
+public:
+    explicit QPannableGesture(const Qt::GestureType &type, Qt::GestureState state = Qt::GestureStarted);
+    QPannableGesture(const Qt::GestureType &type, const QPoint &startPos,
+                     const QPoint &lastPos, const QPoint &pos, const QRect &rect,
+                     const QPoint &hotSpot, const QDateTime &startTime,
+                     uint duration, Qt::GestureState state);
+    ~QPannableGesture();
+
+    DirectionType lastDirection() const;
+    DirectionType direction() const;
+
+    friend class QGestureRecognizerPan;
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QGESTURE_H
diff --git a/src/gui/kernel/qgesture_p.h b/src/gui/kernel/qgesture_p.h
new file mode 100644
index 0000000..745590b
--- /dev/null
+++ b/src/gui/kernel/qgesture_p.h
@@ -0,0 +1,100 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the $MODULE$ of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QGESTURE_P_H
+#define QGESTURE_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of other Qt classes.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qrect.h"
+#include "qpoint.h"
+#include "qdatetime.h"
+
+QT_BEGIN_NAMESPACE
+
+class QGesturePrivate
+{
+public:
+    QGesturePrivate()
+        : duration(0) { }
+
+    void init(const QPoint &startPos, const QPoint &lastPos,
+              const QPoint &pos, const QRect &rect,
+              const QPoint &hotSpot, const QDateTime &startTime,
+              uint duration)
+    {
+        this->rect = rect;
+        this->hotSpot = hotSpot;
+        this->startTime = startTime;
+        this->duration = duration;
+        this->startPos = startPos;
+        this->lastPos = lastPos;
+        this->pos = pos;
+    }
+
+    QRect rect;
+    QPoint hotSpot;
+    QDateTime startTime;
+    uint duration;
+    QPoint startPos;
+    QPoint lastPos;
+    QPoint pos;
+};
+
+class QPannableGesturePrivate : public QGesturePrivate
+{
+public:
+    QPannableGesture::DirectionType lastDirection;
+    QPannableGesture::DirectionType direction;
+};
+
+QT_END_NAMESPACE
+
+#endif // QGESTURE_P_H
diff --git a/src/gui/kernel/qgesturemanager.cpp b/src/gui/kernel/qgesturemanager.cpp
new file mode 100644
index 0000000..c244a0b
--- /dev/null
+++ b/src/gui/kernel/qgesturemanager.cpp
@@ -0,0 +1,405 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the $MODULE$ of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qgesturemanager_p.h"
+#include "qgesture.h"
+#include "qevent.h"
+
+#include "qapplication.h"
+#include "private/qapplication_p.h"
+
+#include "private/qgesturestandardrecognizers_p.h"
+
+#include "qdebug.h"
+
+// #define GESTURE_DEBUG
+#ifndef GESTURE_DEBUG
+# define DEBUG if (0) qDebug
+#else
+# define DEBUG qDebug
+#endif
+
+QT_BEGIN_NAMESPACE
+
+bool qt_sendSpontaneousEvent(QObject *receiver, QEvent *event);
+static bool qt_sendGestureEvent(QWidget *receiver, QGestureEvent *event)
+{
+    QSet<Qt::GestureType> eventGestures = event->gestureTypes().toSet();
+    while (receiver && (receiver->gestures() & eventGestures).isEmpty())
+        receiver = receiver->parentWidget();
+    return receiver ? qt_sendSpontaneousEvent(receiver, event) : false;
+}
+
+static const unsigned int maximumGestureRecognitionTimeout = 2000;
+
+QGestureManager::QGestureManager()
+    : targetWidget(0), state(NotGesture)
+{
+    recognizers << new QDoubleTapGestureRecognizer();
+    recognizers << new QLongTapGestureRecognizer();
+    recognizers << new QGestureRecognizerPan();
+    // recognizers << new QMultiTouchGestureRecognizer();
+
+    foreach(QGestureRecognizer *r, recognizers)
+        connect(r, SIGNAL(triggered(QGestureRecognizer::Result)),
+                this, SLOT(recognizerTriggered(QGestureRecognizer::Result)));
+}
+
+bool QGestureManager::filterEvent(QEvent *event)
+{
+    if (!QApplication::testAttribute(Qt::AA_EnableGestures))
+        return false;
+
+    QList<QEvent*> events;
+    events << event;
+
+    QPoint currentPos;
+    switch (event->type()) {
+    case QEvent::MouseButtonPress:
+    case QEvent::MouseButtonRelease:
+    case QEvent::MouseButtonDblClick:
+    case QEvent::MouseMove:
+        currentPos = static_cast<QMouseEvent*>(event)->pos(); break;
+    default: break;
+    }
+
+    const QMap<Qt::GestureType, int> &grabbedGestures = qApp->d_func()->grabbedGestures;
+
+    bool ret = false;
+    QSet<QGestureRecognizer*> startedGestures;
+    QSet<QGestureRecognizer*> finishedGestures;
+    QSet<QGestureRecognizer*> newMaybeGestures;
+    QSet<QGestureRecognizer*> cancelledGestures;
+    QSet<QGestureRecognizer*> notGestures;
+    if (state == NotGesture || state == MaybeGesture) {
+        DEBUG() << "QGestureManager: current event processing state: "
+                << (state == NotGesture ? "NotGesture" : "MaybeGesture");
+
+        Q_ASSERT(targetWidget != 0);
+        QSet<QGestureRecognizer*> stillMaybeGestures;
+        // try other recognizers.
+        foreach(QGestureRecognizer *r, recognizers) {
+            if (grabbedGestures.value(r->gestureType(), 0) <= 0)
+                continue;
+            QGestureRecognizer::Result result = r->recognize(events);
+            if (result == QGestureRecognizer::GestureStarted) {
+                DEBUG() << "QGestureManager: gesture started: " << r;
+                startedGestures << r;
+            } else if (result == QGestureRecognizer::GestureFinished) {
+                DEBUG() << "QGestureManager: gesture finished: " << r;
+                finishedGestures << r;
+            } else if (result == QGestureRecognizer::MaybeGesture) {
+                DEBUG() << "QGestureManager: maybe gesture: " << r;
+                newMaybeGestures << r;
+            } else {
+                // if it was maybe gesture, but isn't a gesture anymore.
+                DEBUG() << "QGestureManager: not gesture: " << r;
+                notGestures << r;
+            }
+        }
+        activeGestures -= newMaybeGestures;
+        activeGestures += startedGestures;
+        foreach(QGestureRecognizer *r, startedGestures+notGestures) {
+            QMap<QGestureRecognizer*, int>::iterator it = maybeGestures.find(r);
+            if (it != maybeGestures.end()) {
+                killTimer(it.value());
+                maybeGestures.erase(it);
+            }
+        }
+        foreach(QGestureRecognizer *r, newMaybeGestures) {
+            if (!maybeGestures.contains(r)) {
+                int timerId = startTimer(maximumGestureRecognitionTimeout);
+                if (!timerId)
+                    qWarning("QGestureManager: couldn't start timer!");
+                maybeGestures.insert(r, timerId);
+            }
+        }
+        if (!finishedGestures.isEmpty() || !activeGestures.isEmpty()) {
+            // gesture found!
+            ret = true;
+            DEBUG() << "QGestureManager: sending gesture event for: "
+                    << activeGestures << " and " << finishedGestures;
+
+            QList<QGesture*> gestures;
+            foreach(QGestureRecognizer *r, finishedGestures) {
+                if (QGesture *gesture = r->makeEvent())
+                    gestures << gesture;
+            }
+            foreach(QGestureRecognizer *r, activeGestures) {
+                if (QGesture *gesture = r->makeEvent())
+                    gestures << gesture;
+            }
+            Q_ASSERT(!gestures.isEmpty());
+            QGestureEvent event(targetWidget, gestures);
+            qt_sendGestureEvent(targetWidget, &event);
+
+            if (!activeGestures.isEmpty()) {
+                DEBUG() << "QGestureManager: new state = Gesture";
+                state = Gesture;
+            } else if (!maybeGestures.isEmpty()) {
+                DEBUG() << "QGestureManager: new state = Maybe";
+                state = MaybeGesture;
+            } else {
+                DEBUG() << "QGestureManager: new state = NotGesture";
+                state = NotGesture;
+            }
+        } else if (!maybeGestures.isEmpty()) {
+            if (state != MaybeGesture) {
+                // We got a new set of events that look like a start
+                // of some gesture, so we switch to state MaybeGesture
+                // and wait for more events.
+                DEBUG() << "QGestureManager: new state = Maybe. Waiting for events";
+                state = MaybeGesture;
+                // start gesture timer
+            } else {
+                // we still not sure if it is a gesture or not.
+            }
+        } else if (state == MaybeGesture) {
+            // last time we thought it looks like gesture, but now we
+            // know for sure that it isn't.
+            DEBUG() << "QGestureManager: new state = NotGesture";
+            state = NotGesture;
+        }
+        foreach(QGestureRecognizer *r, finishedGestures)
+            r->reset();
+        foreach(QGestureRecognizer *r, cancelledGestures)
+            r->reset();
+        foreach(QGestureRecognizer *r, notGestures)
+            r->reset();
+    } else if (state == Gesture) {
+        DEBUG() << "QGestureManager: current event processing state: Gesture";
+        Q_ASSERT(!activeGestures.isEmpty());
+
+        foreach(QGestureRecognizer *r, recognizers) {
+            if (grabbedGestures.value(r->gestureType(), 0) <= 0)
+                continue;
+            QGestureRecognizer::Result result = r->recognize(events);
+            if (result == QGestureRecognizer::GestureStarted) {
+                DEBUG() << "QGestureManager: gesture started: " << r;
+                startedGestures << r;
+            } else if (result == QGestureRecognizer::GestureFinished) {
+                DEBUG() << "QGestureManager: gesture finished: " << r;
+                finishedGestures << r;
+            } else if (result == QGestureRecognizer::MaybeGesture) {
+                DEBUG() << "QGestureManager: maybe gesture: " << r;
+                newMaybeGestures << r;
+            } else {
+                // if it was an active gesture, but isn't a gesture anymore.
+                if (activeGestures.contains(r)) {
+                    DEBUG() << "QGestureManager: cancelled gesture: " << r;
+                    cancelledGestures << r;
+                } else {
+                    DEBUG() << "QGestureManager: not gesture: " << r;
+                    notGestures << r;
+                }
+            }
+        }
+
+        activeGestures -= newMaybeGestures;
+        activeGestures -= cancelledGestures;
+        activeGestures -= finishedGestures;
+        activeGestures += startedGestures;
+        foreach(QGestureRecognizer *r, startedGestures+finishedGestures+notGestures) {
+            QMap<QGestureRecognizer*, int>::iterator it = maybeGestures.find(r);
+            if (it != maybeGestures.end()) {
+                killTimer(it.value());
+                maybeGestures.erase(it);
+            }
+        }
+        foreach(QGestureRecognizer *r, newMaybeGestures) {
+            if (!maybeGestures.contains(r)) {
+                int timerId = startTimer(maximumGestureRecognitionTimeout);
+                if (!timerId)
+                    qWarning("QGestureManager: couldn't start timer!");
+                maybeGestures.insert(r, timerId);
+            }
+        }
+        QList<QGesture*> gestures;
+        if (!finishedGestures.isEmpty() || !activeGestures.isEmpty()) {
+            // another gesture found!
+            ret = true;
+            DEBUG() << "QGestureManager: sending gesture event for: "
+                    << activeGestures << " and " << finishedGestures;
+
+            foreach(QGestureRecognizer *r, finishedGestures) {
+                if (QGesture *gesture = r->makeEvent())
+                    gestures << gesture;
+            }
+            foreach(QGestureRecognizer *r, activeGestures) {
+                if (QGesture *gesture = r->makeEvent())
+                    gestures << gesture;
+            }
+        }
+        QSet<Qt::GestureType> cancelledGestureNames;
+        foreach(QGestureRecognizer *r, cancelledGestures)
+            cancelledGestureNames << r->gestureType();
+        if(!gestures.isEmpty()) {
+            QGestureEvent event(targetWidget, gestures, cancelledGestureNames);
+            qt_sendGestureEvent(targetWidget, &event);
+        }
+
+        foreach(QGestureRecognizer *r, finishedGestures)
+            r->reset();
+        foreach(QGestureRecognizer *r, cancelledGestures)
+            r->reset();
+        foreach(QGestureRecognizer *r, notGestures)
+            r->reset();
+        if (!activeGestures.isEmpty()) {
+            // nothing changed, we are still handling a gesture
+        } else if (!maybeGestures.isEmpty()) {
+            DEBUG() << "QGestureManager: new state = Maybe. Waiting for events: " << maybeGestures;
+            state = MaybeGesture;
+        } else {
+            DEBUG() << "QGestureManager: new state = NotGesture";
+            state = NotGesture;
+        }
+        ret = true;
+    }
+
+    lastPos = currentPos;
+    return ret;
+}
+
+void QGestureManager::timerEvent(QTimerEvent *event)
+{
+    // sanity checks, remove later
+    Q_ASSERT((state == Gesture && !activeGestures.isEmpty()) || (state != Gesture && activeGestures.isEmpty()));
+
+    typedef QMap<QGestureRecognizer*, int> MaybeGestureMap;
+    for (MaybeGestureMap::iterator it = maybeGestures.begin(), e = maybeGestures.end();
+         it != e; ++it) {
+        if (it.value() == event->timerId()) {
+            DEBUG() << "QGestureManager: gesture timeout.";
+            QGestureRecognizer *r = it.key();
+            r->reset();
+            maybeGestures.erase(it);
+            killTimer(event->timerId());
+            break;
+        }
+    }
+
+    if (state == MaybeGesture && maybeGestures.isEmpty()) {
+        DEBUG() << "QGestureManager: new state = NotGesture because of timeout";
+        state = NotGesture;
+    }
+}
+
+bool QGestureManager::inGestureMode()
+{
+    return state == Gesture;
+}
+
+void QGestureManager::setGestureTargetWidget(QWidget *widget)
+{
+    targetWidget = widget;
+}
+
+void QGestureManager::recognizerTriggered(QGestureRecognizer::Result result)
+{
+    if (!QApplication::testAttribute(Qt::AA_EnableGestures))
+        return;
+
+    QGestureRecognizer *recognizer = qobject_cast<QGestureRecognizer*>(sender());
+    if (!recognizer)
+        return;
+    if (qApp->d_func()->grabbedGestures.value(recognizer->gestureType(), 0) <= 0) {
+        recognizer->reset();
+        return;
+    }
+
+    switch (result) {
+    case QGestureRecognizer::GestureStarted:
+    case QGestureRecognizer::GestureFinished: {
+        if (result == QGestureRecognizer::GestureStarted) {
+            DEBUG() << "QGestureManager: gesture started: " << recognizer;
+            activeGestures << recognizer;
+            DEBUG() << "QGestureManager: new state = Gesture";
+            state = Gesture;
+        } else {
+            DEBUG() << "QGestureManager: gesture finished: " << recognizer;
+        }
+        if (maybeGestures.contains(recognizer)) {
+            killTimer(maybeGestures.value(recognizer));
+            maybeGestures.remove(recognizer);
+        }
+        QList<QGesture*> gestures;
+        if (QGesture *gesture = recognizer->makeEvent())
+            gestures << gesture;
+        if(!gestures.isEmpty()) {
+            QGestureEvent event(targetWidget, gestures);
+            qt_sendGestureEvent(targetWidget, &event);
+        }
+        if (result == QGestureRecognizer::GestureFinished)
+            recognizer->reset();
+    }
+        break;
+    case QGestureRecognizer::MaybeGesture: {
+        DEBUG() << "QGestureManager: maybe gesture: " << recognizer;
+        if (activeGestures.contains(recognizer)) {
+            QGestureEvent event(targetWidget, QList<QGesture*>(),
+                                QSet<Qt::GestureType>() << recognizer->gestureType());
+            qt_sendGestureEvent(targetWidget, &event);
+        }
+        if (!maybeGestures.contains(recognizer)) {
+            int timerId = startTimer(maximumGestureRecognitionTimeout);
+            if (!timerId)
+                qWarning("QGestureManager: couldn't start timer!");
+            maybeGestures.insert(recognizer, timerId);
+        }
+    }
+        break;
+    case QGestureRecognizer::NotGesture:
+        DEBUG() << "QGestureManager: not gesture: " << recognizer;
+        if (maybeGestures.contains(recognizer)) {
+            killTimer(maybeGestures.value(recognizer));
+            maybeGestures.remove(recognizer);
+        }
+        recognizer->reset();
+        break;
+    default:
+        Q_ASSERT(false);
+    }
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qgesturemanager_p.cpp"
+
diff --git a/src/gui/kernel/qgesturemanager_p.h b/src/gui/kernel/qgesturemanager_p.h
new file mode 100644
index 0000000..9853f1a
--- /dev/null
+++ b/src/gui/kernel/qgesturemanager_p.h
@@ -0,0 +1,102 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the $MODULE$ of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QGESTUREMANAGER_P_H
+#define QGESTUREMANAGER_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of other Qt classes.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qlist.h"
+#include "qset.h"
+#include "qevent.h"
+#include "qbasictimer.h"
+
+#include "qgesturerecognizer.h"
+
+QT_BEGIN_NAMESPACE
+
+class Q_GUI_EXPORT QGestureManager : public QObject
+{
+    Q_OBJECT
+public:
+    QGestureManager();
+
+    // should be internal
+    void setGestureTargetWidget(QWidget *widget);
+
+    bool filterEvent(QEvent *event);
+    bool inGestureMode();
+
+protected:
+    void timerEvent(QTimerEvent *event);
+
+private slots:
+    void recognizerTriggered(QGestureRecognizer::Result);
+
+private:
+    QSet<QGestureRecognizer*> activeGestures;
+    QMap<QGestureRecognizer*, int> maybeGestures;
+    QSet<QGestureRecognizer*> recognizers;
+
+    QWidget *targetWidget;
+    QPoint lastPos;
+
+    enum State {
+        Gesture,
+        NotGesture,
+        MaybeGesture // that mean timers are up and waiting for some
+                     // more events, and input events are handled by
+                     // gesture recognizer explicitely
+    } state;
+};
+
+QT_END_NAMESPACE
+
+#endif // QGESTUREMANAGER_P_H
diff --git a/src/gui/kernel/qgesturerecognizer.h b/src/gui/kernel/qgesturerecognizer.h
new file mode 100644
index 0000000..3ed96c0
--- /dev/null
+++ b/src/gui/kernel/qgesturerecognizer.h
@@ -0,0 +1,83 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the $MODULE$ of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QGESTURERECOGNIZER_H
+#define QGESTURERECOGNIZER_H
+
+#include "qgesture.h"
+#include "qevent.h"
+#include "qlist.h"
+#include "qset.h"
+
+QT_BEGIN_NAMESPACE
+
+class QGestureRecognizer : public QObject
+{
+    Q_OBJECT
+public:
+    enum Result
+    {
+        NotGesture,
+        GestureStarted,
+        GestureFinished,
+        MaybeGesture
+    };
+
+    inline QGestureRecognizer() { }
+    //### remove this ctor
+    inline QGestureRecognizer(const char *type) : type_(QLatin1String(type)) { }
+    inline QGestureRecognizer(const Qt::GestureType &type) : type_(type) { }
+    inline Qt::GestureType gestureType() const { return type_; }
+
+    virtual Result recognize(const QList<QEvent*> &inputEvents) = 0;
+    virtual QGesture* makeEvent() const = 0;
+    virtual void reset() = 0;
+
+signals:
+    void triggered(QGestureRecognizer::Result result);
+
+protected:
+    Qt::GestureType type_;
+};
+
+QT_END_NAMESPACE
+
+#endif // QGESTURERECOGNIZER_P_H
diff --git a/src/gui/kernel/qgesturestandardrecognizers.cpp b/src/gui/kernel/qgesturestandardrecognizers.cpp
new file mode 100644
index 0000000..3a2fa1d
--- /dev/null
+++ b/src/gui/kernel/qgesturestandardrecognizers.cpp
@@ -0,0 +1,543 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the $MODULE$ of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qgesturestandardrecognizers_p.h"
+#include "qgesture_p.h"
+
+// #define GESTURE_RECOGNIZER_DEBUG
+#ifndef GESTURE_RECOGNIZER_DEBUG
+# define DEBUG if (0) qDebug
+#else
+# define DEBUG qDebug
+#endif
+
+QT_BEGIN_NAMESPACE
+/*
+QGestureRecognizerMouseTwoButtons::QGestureRecognizerMouseTwoButtons()
+    : QGestureRecognizer(Qt::MouseTwoButtonClick)
+{
+    clear();
+}
+
+QGestureRecognizer::Result QGestureRecognizerMouseTwoButtons::recognize(const QList<QEvent*> &inputEvents)
+{
+    // get all mouse events
+    QList<QMouseEvent*> events;
+    for(int i = 0; i < inputEvents.count(); ++i) {
+        QEvent *event = inputEvents.at(i);
+        switch (event->type()) {
+        case QEvent::MouseButtonPress:
+        case QEvent::MouseButtonRelease:
+            events.push_back(static_cast<QMouseEvent*>(event));
+        default:
+            break;
+        }
+    }
+
+    QGestureRecognizer::Result result = QGestureRecognizer::NotGesture;
+    for(int i = 0; i < events.count(); ++i) {
+        QMouseEvent *event = events.at(i);
+        if (event->type() == QEvent::MouseButtonPress) {
+            if (userEvents[3]) {
+                // something wrong, we already has a gesture.
+                clear();
+            } else if (userEvents[2]) {
+                // 1d, 2d, 1u, and user press another button. not gesture.
+                DEBUG() << "1";
+                result = QGestureRecognizer::NotGesture;
+                clear();
+                break;
+            } else if (userEvents[1]) {
+                // 1d, 2d, and user pressed third button. not gesture.
+                DEBUG() << "2";
+                result = QGestureRecognizer::NotGesture;
+                clear();
+                break;
+            } else if (userEvents[0]) {
+                // second button press.
+                DEBUG() << "3";
+                userEvents[1] = event;
+                result = QGestureRecognizer::MaybeGesture;
+            } else {
+                // first button press.
+                DEBUG() << "4";
+                userEvents[0] = event;
+                result = QGestureRecognizer::MaybeGesture;
+            }
+        } else if (event->type() == QEvent::MouseButtonRelease) {
+            if (userEvents[3]) {
+                // something wrong, we already has a gesture.
+                clear();
+            } else if (userEvents[2]) {
+                // 1d, 2d, 1u, and button release
+                DEBUG() << "5";
+                if (userEvents[1]->button() != event->button()) {
+                    // got weird buttonreleased event. doesn't look like gesture.
+                    result = QGestureRecognizer::NotGesture;
+                    clear();
+                    break;
+                }
+                // gesture!
+                userEvents[3] = event;
+                result = QGestureRecognizer::GestureFinished;
+                break;
+            } else if (userEvents[1]) {
+                // 1d, 2d, and button release
+                DEBUG() << "6";
+                if (userEvents[0]->button() != event->button()) {
+                    // user released the wrong button. not gesture.
+                    result = QGestureRecognizer::NotGesture;
+                    clear();
+                    break;
+                }
+                // user released the right button! looks like gesture
+                userEvents[2] = event;
+                result = QGestureRecognizer::MaybeGesture;
+            } else if (userEvents[0]) {
+                // 1d, and some button was released. not a gesture.
+                DEBUG() << "7";
+                result = QGestureRecognizer::NotGesture;
+                clear();
+                break;
+            }
+        }
+    }
+    return result;
+}
+
+QGesture* QGestureRecognizerMouseTwoButtons::makeEvent() const
+{
+    if (!userEvents[0] || !userEvents[1] || !userEvents[2] || !userEvents[3])
+        return 0;
+    QGesture::Direction direction =
+        (userEvents[0]->button() < userEvents[1]->button() ?
+         QGesture::Left : QGesture::Right);
+    QList<QPoint> points;
+    points.push_back(userEvents[0]->globalPos());
+    points.push_back(userEvents[1]->globalPos());
+    QGesture *gesture =
+        new QGesture(Qt::MouseTwoButtonClick, points.at(0), points.at(1), points.at(1),
+                     direction,
+                     QRect(points.at(0), points.at(1)),
+                     points.at(0));
+    return gesture;
+}
+
+void QGestureRecognizerMouseTwoButtons::reset()
+{
+    clear();
+}
+
+void QGestureRecognizerMouseTwoButtons::clear()
+{
+    userEvents[0] = userEvents[1] = userEvents[2] = userEvents[3] = 0;
+}
+*/
+
+//
+// QGestureRecognizerPan
+//
+
+QGestureRecognizerPan::QGestureRecognizerPan()
+    : QGestureRecognizer(Qt::Pan), mousePressed(false), gestureFinished(false),
+      lastDirection(Direction::None)
+{
+}
+
+QGestureRecognizer::Result QGestureRecognizerPan::recognize(const QList<QEvent*> &inputEvents)
+{
+    // get all mouse events
+    QList<QMouseEvent*> events;
+    for(int i = 0; i < inputEvents.count(); ++i) {
+        QEvent *event = inputEvents.at(i);
+        switch (event->type()) {
+        case QEvent::MouseButtonPress:
+        case QEvent::MouseButtonRelease:
+        case QEvent::MouseMove:
+            events.push_back(static_cast<QMouseEvent*>(event));
+        default:
+            break;
+        }
+    }
+
+    QGestureRecognizer::Result result = QGestureRecognizer::NotGesture;
+    for(int i = 0; i < events.count(); ++i) {
+        QMouseEvent *event = events.at(i);
+        if (event->type() == QEvent::MouseButtonPress) {
+            if (lastDirection != Direction::None) {
+                DEBUG() << "Pan: MouseButtonPress: fail. another press during pan";
+                result = QGestureRecognizer::NotGesture;
+                reset();
+                break;
+            }
+            DEBUG() << "Pan: MouseButtonPress: maybe gesture started";
+            result = QGestureRecognizer::MaybeGesture;
+            mousePressed = true;
+            pressedPos = lastPos = currentPos = event->pos();
+        } else if (event->type() == QEvent::MouseButtonRelease) {
+            if (mousePressed && lastDirection != Direction::None) {
+                DEBUG() << "Pan: MouseButtonRelease: pan detected";
+                result = QGestureRecognizer::GestureFinished;
+                gestureFinished = true;
+                currentPos = event->pos();
+                internalReset();
+                break;
+            }
+            DEBUG() << "Pan: MouseButtonRelease: some weird release detected, ignoring";
+            result = QGestureRecognizer::NotGesture;
+            reset();
+            break;
+        } else if (event->type() == QEvent::MouseMove) {
+            if (!mousePressed)
+                continue;
+            lastPos = currentPos;
+            currentPos = event->pos();
+            Direction::DirectionType direction =
+                simpleRecognizer.addPosition(event->pos()).direction;
+            DEBUG() << "Pan: MouseMove: simplerecognizer result = " << direction;
+            if (lastDirection == Direction::None) {
+                if (direction == Direction::None)
+                    result = QGestureRecognizer::MaybeGesture;
+                else
+                    result = QGestureRecognizer::GestureStarted;
+            } else {
+                result = QGestureRecognizer::GestureStarted;
+            }
+            if (direction != Direction::None)
+                lastDirection = direction;
+        }
+    }
+    return result;
+}
+
+QGesture* QGestureRecognizerPan::makeEvent() const
+{
+    QPannableGesture::DirectionType dir = QPannableGesture::None;
+    if (lastDirection == Direction::Left)
+        dir = QPannableGesture::Left;
+    else if (lastDirection == Direction::Right)
+        dir = QPannableGesture::Right;
+    else if (lastDirection == Direction::Up)
+        dir = QPannableGesture::Up;
+    else if (lastDirection == Direction::Down)
+        dir = QPannableGesture::Down;
+    else
+        return 0;
+    QPannableGesture *g =
+        new QPannableGesture(Qt::Pan, pressedPos, lastPos, currentPos,
+                             QRect(), pressedPos, QDateTime(), 0,
+                             gestureFinished ? Qt::GestureFinished : Qt::GestureStarted);
+    QPannableGesturePrivate *d = (QPannableGesturePrivate*)g->d;
+    d->lastDirection = dir; ///###
+    d->direction = dir;
+    
+    return g;
+}
+
+void QGestureRecognizerPan::reset()
+{
+    mousePressed = false;
+    lastDirection = Direction::None;
+    gestureFinished = false;
+    diagonalRecognizer.reset();
+    simpleRecognizer.reset();
+}
+
+void QGestureRecognizerPan::internalReset()
+{
+    mousePressed = false;
+    diagonalRecognizer.reset();
+    simpleRecognizer.reset();
+}
+
+
+//
+// QDoubleTapGestureRecognizer
+//
+QDoubleTapGestureRecognizer::QDoubleTapGestureRecognizer()
+    : QGestureRecognizer(Qt::DoubleTap)
+{
+}
+
+QGestureRecognizer::Result QDoubleTapGestureRecognizer::recognize(const QList<QEvent*> &inputEvents)
+{
+    // get all mouse events
+    QList<QMouseEvent*> events;
+    for(int i = 0; i < inputEvents.count(); ++i) {
+        QEvent *event = inputEvents.at(i);
+        switch (event->type()) {
+        case QEvent::MouseButtonPress:
+        case QEvent::MouseButtonRelease:
+        case QEvent::MouseButtonDblClick:
+        case QEvent::MouseMove:
+            events.push_back(static_cast<QMouseEvent*>(event));
+        default:
+            break;
+        }
+    }
+
+    QGestureRecognizer::Result result = QGestureRecognizer::NotGesture;
+    for(int i = 0; i < events.count(); ++i) {
+        QMouseEvent *event = events.at(i);
+        if (event->type() == QEvent::MouseButtonPress) {
+            if (pressedPosition.isNull()) {
+                result = QGestureRecognizer::MaybeGesture;
+                pressedPosition = event->pos();
+            } else if ((pressedPosition - event->pos()).manhattanLength() < 10) {
+                result = QGestureRecognizer::GestureFinished;
+            }
+        } else if (event->type() == QEvent::MouseButtonRelease) {
+            if (!pressedPosition.isNull() && (pressedPosition - event->pos()).manhattanLength() < 10)
+                result = QGestureRecognizer::MaybeGesture;
+        } else if (event->type() == QEvent::MouseButtonDblClick) {
+            result = QGestureRecognizer::GestureFinished;
+            pressedPosition = event->pos();
+            break;
+        }
+    }
+    return result;
+}
+
+QGesture* QDoubleTapGestureRecognizer::makeEvent() const
+{
+    return new QGesture(Qt::DoubleTap,
+                        pressedPosition, pressedPosition, pressedPosition,
+                        QRect(), pressedPosition, QDateTime(), 0, Qt::GestureFinished);
+}
+
+void QDoubleTapGestureRecognizer::reset()
+{
+    pressedPosition = QPoint();
+}
+
+//
+// QLongTapGestureRecognizer
+//
+const int QLongTapGestureRecognizer::iterationCount = 40;
+const int QLongTapGestureRecognizer::iterationTimeout = 50;
+
+QLongTapGestureRecognizer::QLongTapGestureRecognizer()
+    : QGestureRecognizer(Qt::LongTap), iteration(0)
+{
+}
+
+QGestureRecognizer::Result QLongTapGestureRecognizer::recognize(const QList<QEvent*> &inputEvents)
+{
+    // get all mouse events
+    QList<QMouseEvent*> events;
+    for(int i = 0; i < inputEvents.count(); ++i) {
+        QEvent *event = inputEvents.at(i);
+        switch (event->type()) {
+        case QEvent::MouseButtonPress:
+        case QEvent::MouseButtonRelease:
+        case QEvent::MouseMove:
+            events.push_back(static_cast<QMouseEvent*>(event));
+        default:
+            break;
+        }
+    }
+
+    QGestureRecognizer::Result result = QGestureRecognizer::NotGesture;
+    for(int i = 0; i < events.count(); ++i) {
+        QMouseEvent *event = events.at(i);
+        if (event->type() == QEvent::MouseButtonPress) {
+            if (timer.isActive())
+                timer.stop();
+            timer.start(QLongTapGestureRecognizer::iterationTimeout, this);
+            pressedPosition = event->pos();
+            result = QGestureRecognizer::MaybeGesture;
+        } else if (event->type() == QEvent::MouseMove) {
+            if ((pressedPosition - event->pos()).manhattanLength() < 15)
+                result = QGestureRecognizer::GestureStarted;
+            else
+                result = QGestureRecognizer::NotGesture;
+        } else if (event->type() == QEvent::MouseButtonRelease) {
+            result = QGestureRecognizer::NotGesture;
+            timer.stop();
+            break;
+        }
+    }
+    return result;
+}
+
+void QLongTapGestureRecognizer::timerEvent(QTimerEvent *event)
+{
+    if (event->timerId() != timer.timerId())
+        return;
+    if (++iteration == QLongTapGestureRecognizer::iterationCount) {
+        emit triggered(QGestureRecognizer::GestureFinished);
+        timer.stop();
+    } else {
+        emit triggered(QGestureRecognizer::GestureStarted);
+    }
+}
+
+QGesture* QLongTapGestureRecognizer::makeEvent() const
+{
+    return new QGesture(Qt::LongTap,
+                        pressedPosition, pressedPosition, pressedPosition,
+                        QRect(), pressedPosition, QDateTime(), 0,
+                        iteration >= QLongTapGestureRecognizer::iterationCount ?
+                        Qt::GestureFinished :  Qt::GestureStarted);
+}
+
+void QLongTapGestureRecognizer::reset()
+{
+    pressedPosition = QPoint();
+    timer.stop();
+    iteration = 0;
+}
+
+//
+// QMultiTouchGestureRecognizer
+//
+
+/*
+QMultiTouchGestureRecognizer::QMultiTouchGestureRecognizer()
+    : QGestureRecognizer(Qt::Pinch)
+{
+}
+
+QGestureRecognizer::Result QMultiTouchGestureRecognizer::recognize(const QList<QEvent*> &inputEvents)
+{
+    QGestureRecognizer::Result result = QGestureRecognizer::NotGesture;
+    for(int i = 0; i < inputEvents.count(); ++i) {
+        QEvent *inputEvent = inputEvents.at(i);
+        if (inputEvent->type() != QEvent::Pointer) {
+            if (touches.size() == 2)
+                result = QGestureRecognizer::GestureStarted;
+            else if (touches.size() == 1)
+                result = QGestureRecognizer::MaybeGesture;
+            continue;
+        }
+        QPointerEvent *event = static_cast<QPointerEvent*>(inputEvent);
+        Q_ASSERT(event->pointerCount() > 0);
+        for (int idx = 0; idx < event->pointerCount(); ++idx) {
+            switch (event->state(idx)) {
+            case QPointerEvent::Begin:
+                qDebug() << "Begin" << idx;
+                if (touches.size() == 2) {
+                    // too many touches
+                    qDebug() << "too many touches";
+                    result = QGestureRecognizer::MaybeGesture;
+                    continue;
+                }
+                touches[event->pointerId(idx)].startPosition = event->pos(idx);
+                if (touches.size() == 1) {
+                    result = QGestureRecognizer::MaybeGesture;
+                } else if (touches.size() == 2) {
+                    result = QGestureRecognizer::GestureStarted;
+                } else {
+                    result = QGestureRecognizer::NotGesture;
+                }
+                break;
+
+            case QPointerEvent::Move:
+                qDebug() << "Move" << idx;
+                touches[event->pointerId(idx)].lastPosition = touches[event->pointerId(idx)].currentPosition;
+                touches[event->pointerId(idx)].currentPosition = event->pos(idx);
+                if (touches.size() == 1)
+                    result = QGestureRecognizer::MaybeGesture;
+                else if (touches.size() == 2)
+                    result = QGestureRecognizer::GestureStarted;
+                else
+                    result = QGestureRecognizer::NotGesture;
+                break;
+
+            case QPointerEvent::End:
+                qDebug() << "End" << idx;
+                touches.remove(event->pointerId(idx));
+                if (touches.size() == 1) {
+                    result = QGestureRecognizer::MaybeGesture;
+                } else if (touches.size() == 0) {
+                    result = QGestureRecognizer::NotGesture;
+                } else {
+                    qDebug() << "unexpected touch end event";
+                    return QGestureRecognizer::NotGesture;
+                }
+                break;
+
+            case QPointerEvent::Stationary:
+                qDebug() << "Stationary" << idx;
+                if (touches.size() == 2)
+                    result = QGestureRecognizer::GestureStarted;
+                else if (touches.size() == 1)
+                    result = QGestureRecognizer::MaybeGesture;
+                break;
+
+            default:
+                break;
+            }
+        }
+    }
+    return result;
+}
+
+QGesture* QMultiTouchGestureRecognizer::makeEvent() const
+{
+    if (touches.size() != 2)
+        return 0;
+
+    QGesture *g = new QGesture(Qt::Pinch);
+    QGesture::Data data;
+
+    TapMap::const_iterator it = touches.begin();
+    data.startPos = it->startPosition.toPoint();
+    data.lastPos = it->lastPosition.toPoint();
+    data.currentPos = it->currentPosition.toPoint();
+    g->datas.push_back(data);
+
+    ++it;
+    data.startPos = it->startPosition.toPoint();
+    data.lastPos = it->lastPosition.toPoint();
+    data.currentPos = it->currentPosition.toPoint();
+    g->datas.push_back(data);
+
+    return g;
+}
+
+void QMultiTouchGestureRecognizer::reset()
+{
+    touches.clear();
+}
+*/
+
+QT_END_NAMESPACE
diff --git a/src/gui/kernel/qgesturestandardrecognizers_p.h b/src/gui/kernel/qgesturestandardrecognizers_p.h
new file mode 100644
index 0000000..3b314e7
--- /dev/null
+++ b/src/gui/kernel/qgesturestandardrecognizers_p.h
@@ -0,0 +1,169 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the $MODULE$ of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QGESTURESTANDARDRECOGNIZERS_P_H
+#define QGESTURESTANDARDRECOGNIZERS_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of other Qt classes.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qevent.h"
+#include "qbasictimer.h"
+#include "qdebug.h"
+
+#include "qgesturerecognizer.h"
+#include "private/qdirectionrecognizer_p.h"
+
+QT_BEGIN_NAMESPACE
+
+/*
+class QGestureRecognizerMouseTwoButtons : public QGestureRecognizer
+{
+    Q_OBJECT
+public:
+    QGestureRecognizerMouseTwoButtons();
+    QGestureRecognizer::Result recognize(const QList<QEvent*> &inputEvents);
+
+    QGesture* makeEvent() const;
+    void reset();
+
+private:
+    void clear();
+
+    // find the last two button click events
+    QMouseEvent* userEvents[4];
+};
+*/
+
+class QGestureRecognizerPan : public QGestureRecognizer
+{
+    Q_OBJECT
+public:
+    QGestureRecognizerPan();
+
+    QGestureRecognizer::Result recognize(const QList<QEvent*> &inputEvents);
+    QGesture* makeEvent() const;
+
+    void reset();
+
+private:
+    void internalReset();
+
+    QPoint pressedPos;
+    QPoint lastPos;
+    QPoint currentPos;
+    bool mousePressed;
+    bool gestureFinished;
+    Direction::DirectionType lastDirection;
+    QDirectionDiagonalRecognizer diagonalRecognizer;
+    QDirectionSimpleRecognizer simpleRecognizer;
+};
+
+class QDoubleTapGestureRecognizer : public QGestureRecognizer
+{
+    Q_OBJECT
+public:
+    QDoubleTapGestureRecognizer();
+
+    QGestureRecognizer::Result recognize(const QList<QEvent*> &inputEvents);
+    QGesture* makeEvent() const;
+    void reset();
+
+private:
+    QPoint pressedPosition;
+};
+
+class QLongTapGestureRecognizer : public QGestureRecognizer
+{
+    Q_OBJECT
+public:
+    QLongTapGestureRecognizer();
+
+    QGestureRecognizer::Result recognize(const QList<QEvent*> &inputEvents);
+    QGesture* makeEvent() const;
+    void reset();
+
+protected:
+    void timerEvent(QTimerEvent *event);
+
+private:
+    QPoint pressedPosition;
+    QBasicTimer timer;
+    int iteration;
+    static const int iterationCount;
+    static const int iterationTimeout;
+};
+
+/*
+class QMultiTouchGestureRecognizer : public QGestureRecognizer
+{
+    Q_OBJECT
+public:
+    QMultiTouchGestureRecognizer();
+
+    QMap<Qt::GestureType, int> maybeGestureCompletion();
+    QGestureRecognizer::Result recognize(const QList<QEvent*> &inputEvents);
+    QGesture* makeEvent() const;
+    void reset();
+
+private:
+    struct Tap {
+        //### should I use QPointF everywhere internally ??
+        QPointF startPosition;
+        QPointF lastPosition;
+        QPointF currentPosition;
+    };
+    typedef QMap<int, Tap> TapMap;
+    TapMap touches;
+};
+*/
+
+QT_END_NAMESPACE
+
+#endif // QGESTURESTANDARDRECOGNIZERS_P_H
diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index 968a423..f6be730 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -7532,6 +7532,7 @@ bool QWidget::event(QEvent *event)
 #ifndef QT_NO_WHEELEVENT
         case QEvent::Wheel:
 #endif
+        case QEvent::Gesture:
             return false;
         default:
             break;
@@ -7927,6 +7928,9 @@ bool QWidget::event(QEvent *event)
         d->needWindowChange = false;
         break;
 #endif
+    case QEvent::Gesture:
+        gestureEvent((QGestureEvent*)event);
+        break;
 #ifndef QT_NO_PROPERTIES
     case QEvent::DynamicPropertyChange: {
         const QByteArray &propName = static_cast<QDynamicPropertyChangeEvent *>(event)->propertyName();
@@ -8732,6 +8736,11 @@ bool QWidget::qwsEvent(QWSEvent *)
 
 #endif
 
+void QWidget::gestureEvent(QGestureEvent *event)
+{
+    event->ignore();
+}
+
 
 /*!
     Ensures that the widget has been polished by QStyle (i.e., has a
@@ -11016,6 +11025,42 @@ QWindowSurface *QWidget::windowSurface() const
     return bs ? bs->windowSurface : 0;
 }
 
+void QWidget::grabGesture(Qt::GestureType gesture)
+{
+    Q_D(QWidget);
+    if (d->gestures.contains(gesture))
+        return;
+    d->gestures << gesture;
+    ++qApp->d_func()->grabbedGestures[gesture];
+}
+
+void QWidget::grabGestures(const QSet<Qt::GestureType> &gestures)
+{
+    Q_D(QWidget);
+    foreach(const Qt::GestureType &gesture, gestures) {
+        if (!d->gestures.contains(gesture))
+            ++qApp->d_func()->grabbedGestures[gesture];
+    }
+    d->gestures.unite(gestures);
+}
+
+void QWidget::releaseGesture(Qt::GestureType gesture)
+{
+    Q_D(QWidget);
+    QMap<Qt::GestureType, int>::iterator it =
+        qApp->d_func()->grabbedGestures.find(gesture);
+    if (it != qApp->d_func()->grabbedGestures.end() &&
+        d->gestures.contains(gesture))
+        ++it.value();
+    d->gestures.remove(gesture);
+}
+
+QSet<Qt::GestureType> QWidget::gestures()
+{
+    Q_D(const QWidget);
+    return d->gestures;
+}
+
 void QWidgetPrivate::getLayoutItemMargins(int *left, int *top, int *right, int *bottom) const
 {
     if (left)
diff --git a/src/gui/kernel/qwidget.h b/src/gui/kernel/qwidget.h
index 6703d26..afe637d 100644
--- a/src/gui/kernel/qwidget.h
+++ b/src/gui/kernel/qwidget.h
@@ -59,6 +59,8 @@
 #include <QtGui/qevent.h>
 #endif
 
+#include <QtGui/qgesture.h>
+
 QT_BEGIN_HEADER
 
 QT_BEGIN_NAMESPACE
@@ -90,6 +92,7 @@ class QDragLeaveEvent;
 class QDropEvent;
 class QShowEvent;
 class QHideEvent;
+class QGestureEvent;
 class QInputContext;
 class QIcon;
 class QWindowSurface;
@@ -610,6 +613,11 @@ public:
     void setWindowSurface(QWindowSurface *surface);
     QWindowSurface *windowSurface() const;
 
+    void grabGesture(Qt::GestureType gesture);
+    void grabGestures(const QSet<Qt::GestureType> &gestures);
+    void releaseGesture(Qt::GestureType gesture);
+    QSet<Qt::GestureType> gestures();
+
 Q_SIGNALS:
     void customContextMenuRequested(const QPoint &pos);
 
@@ -669,6 +677,8 @@ protected:
     // Misc. protected functions
     virtual void changeEvent(QEvent *);
 
+    virtual void gestureEvent(QGestureEvent *);
+
     int metric(PaintDeviceMetric) const;
 
     virtual void inputMethodEvent(QInputMethodEvent *);
diff --git a/src/gui/kernel/qwidget_p.h b/src/gui/kernel/qwidget_p.h
index 5f5e1b1..178f7ba 100644
--- a/src/gui/kernel/qwidget_p.h
+++ b/src/gui/kernel/qwidget_p.h
@@ -57,6 +57,7 @@
 #include "private/qobject_p.h"
 #include "QtCore/qrect.h"
 #include "QtCore/qlocale.h"
+#include "QtCore/qset.h"
 #include "QtGui/qregion.h"
 #include "QtGui/qsizepolicy.h"
 #include "QtGui/qstyle.h"
@@ -592,6 +593,8 @@ public:
     uint isGLWidget : 1;
 #endif
 
+    QSet<Qt::GestureType> gestures;
+
 #if defined(Q_WS_X11) || defined (Q_WS_WIN) || defined(Q_WS_MAC)
 #ifdef Q_WS_MAC
     void setWSGeometry(bool dontShow=false, const QRect &oldRect = QRect());
diff --git a/src/gui/widgets/qabstractscrollarea.cpp b/src/gui/widgets/qabstractscrollarea.cpp
index 9886969..190dbb5 100644
--- a/src/gui/widgets/qabstractscrollarea.cpp
+++ b/src/gui/widgets/qabstractscrollarea.cpp
@@ -908,6 +908,7 @@ bool QAbstractScrollArea::event(QEvent *e)
     case QEvent::DragMove:
     case QEvent::DragLeave:
 #endif
+    case QEvent::Gesture:
         return false;
     case QEvent::StyleChange:
     case QEvent::LayoutDirectionChange: