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-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the QtGui module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** 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 1.1, 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.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QTESSELATOR_P_H
-#define QTESSELATOR_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 <qpoint.h>
-#include <qrect.h>
-
-QT_BEGIN_NAMESPACE
-
-class QTessellatorPrivate;
-
-typedef int Q27Dot5;
-#define Q27Dot5ToDouble(i) ((i)/32.)
-#define FloatToQ27Dot5(i) (int)((i) * 32)
-#define IntToQ27Dot5(i) ((i) << 5)
-#define Q27Dot5ToXFixed(i) ((i) << 11)
-#define Q27Dot5Factor 32
-
-class Q_GUI_EXPORT QTessellator {
-public:
- QTessellator();
- virtual ~QTessellator();
-
- QRectF tessellate(const QPointF *points, int nPoints);
- void tessellateConvex(const QPointF *points, int nPoints);
- void tessellateRect(const QPointF &a, const QPointF &b, qreal width);
-
- void setWinding(bool w);
-
- struct Vertex {
- Q27Dot5 x;
- Q27Dot5 y;
- };
- struct Trapezoid {
- Q27Dot5 top;
- Q27Dot5 bottom;
- const Vertex *topLeft;
- const Vertex *bottomLeft;
- const Vertex *topRight;
- const Vertex *bottomRight;
- };
- virtual void addTrap(const Trapezoid &trap) = 0;
-
-private:
- friend class QTessellatorPrivate;
- QTessellatorPrivate *d;
-};
-
-QT_END_NAMESPACE
-
-#endif