Multitouch, Cocoa: First revision of multi touch in Qt/Cocoa

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diff --git a/src/gui/kernel/qmultitouch_mac_p.h b/src/gui/kernel/qmultitouch_mac_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//
+//  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.
+//
+
+#ifndef QMULTITOUCH_MAC_P_H
+#define QMULTITOUCH_MAC_P_H
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6
+
+#ifdef QT_MAC_USE_COCOA
+#import <Cocoa/Cocoa.h>
+#endif
+
+#include <qevent.h>
+#include <qhash.h>
+#include <QtCore>
+
+QT_BEGIN_NAMESPACE
+
+#ifdef QT_MAC_USE_COCOA
+
+class QCocoaTouch
+{
+    public:
+        static QList<QTouchEvent::TouchPoint> getCurrentTouchPointList(NSEvent *event);
+        static void setMouseInDraggingState(bool inDraggingState);
+
+    private:
+        static QHash<int, QCocoaTouch*> _currentTouches;
+        static QPointF _screenReferencePos;
+        static QPointF _trackpadReferencePos;
+        static bool _inMouseDraggingState;
+        static int _idAssignmentCount;
+
+        QTouchEvent::TouchPoint _touchPoint;
+        QPointF _trackpadPos;
+        int _identity;
+
+        QCocoaTouch(NSTouch *nstouch);
+        ~QCocoaTouch();
+
+        void updateTouchData(NSTouch *nstouch, NSTouchPhase phase);
+        static QCocoaTouch *findQCocoaTouch(NSTouch *nstouch);
+        static Qt::TouchPointState toTouchPointState(NSTouchPhase nsState);
+        static void validateCurrentTouchList(NSEvent *event);
+};
+
+#endif // QT_MAC_USE_COCOA
+
+QT_END_NAMESPACE
+
+#endif // MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_6
+
+#endif // QMULTITOUCH_MAC_P_H
+