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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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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