/****************************************************************************

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the QtOpenGL 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

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**

** If you have questions regarding the use of this file, please contact

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** $QT_END_LICENSE$

**

****************************************************************************/

//

//  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.

//

#ifndef QGL2PEXVERTEXARRAY_P_H

#define QGL2PEXVERTEXARRAY_P_H

#include <QRectF>

#include <private/qdatabuffer_p.h>

#include <private/qvectorpath_p.h>

#include <private/qgl_p.h>

QT_BEGIN_NAMESPACE

class QGLPoint

{

public:

    QGLPoint(GLfloat new_x, GLfloat new_y) :

        x(new_x), y(new_y) {};

    QGLPoint(const QPointF &p) :

        x(p.x()), y(p.y()) {};

    QGLPoint(const QPointF* p) :

        x(p->x()), y(p->y()) {};

    GLfloat x;

    GLfloat y;

    operator QPointF() {return QPointF(x,y);}

    operator QPointF() const {return QPointF(x,y);}

};

struct QGLRect

{

    QGLRect(const QRectF &r)

        :  left(r.left()), top(r.top()), right(r.right()), bottom(r.bottom()) {}

    QGLRect(GLfloat l, GLfloat t, GLfloat r, GLfloat b)

        : left(l), top(t), right(r), bottom(b) {}

    GLfloat left;

    GLfloat top;

    GLfloat right;

    GLfloat bottom;

    operator QRectF() {return QRectF(left, top, right-left, bottom-top);}

};

class QGL2PEXVertexArray

{

public:

    QGL2PEXVertexArray() :

        maxX(-2e10), maxY(-2e10), minX(2e10), minY(2e10),

        boundingRectDirty(true) {}

    void addRect(const QRectF &rect);

    void addPath(const QVectorPath &path, GLfloat curveInverseScale, bool outline = true);

    void clear();

    QGLPoint*        data() {return vertexArray.data();}

    QVector<int>&   stops() {return vertexArrayStops;}

    QGLRect         boundingRect() const;

    void lineToArray(const GLfloat x, const GLfloat y);

private:

    QDataBuffer<QGLPoint> vertexArray;

    QVector<int>          vertexArrayStops;

    GLfloat     maxX;

    GLfloat     maxY;

    GLfloat     minX;

    GLfloat     minY;

    bool        boundingRectDirty;

    inline void curveToArray(const QGLPoint &cp1, const QGLPoint &cp2, const QGLPoint &ep, GLfloat inverseScale);

    void addClosingLine(int index);

    void addCentroid(const QVectorPath &path, int subPathIndex);

};

QT_END_NAMESPACE

#endif