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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 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
** 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// 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() const {return QRectF(left, top, right-left, bottom-top);}
};
class QGL2PEXVertexArray
{
public:
QGL2PEXVertexArray() :
vertexArray(0), vertexArrayStops(0),
maxX(-2e10), maxY(-2e10), minX(2e10), minY(2e10),
boundingRectDirty(true)
{ }
inline void addRect(const QRectF &rect)
{
qreal top = rect.top();
qreal left = rect.left();
qreal bottom = rect.bottom();
qreal right = rect.right();
vertexArray << QGLPoint(left, top)
<< QGLPoint(right, top)
<< QGLPoint(right, bottom)
<< QGLPoint(right, bottom)
<< QGLPoint(left, bottom)
<< QGLPoint(left, top);
}
inline void addQuad(const QRectF &rect)
{
qreal top = rect.top();
qreal left = rect.left();
qreal bottom = rect.bottom();
qreal right = rect.right();
vertexArray << QGLPoint(left, top)
<< QGLPoint(right, top)
<< QGLPoint(left, bottom)
<< QGLPoint(right, bottom);
}
inline void addVertex(const GLfloat x, const GLfloat y)
{
vertexArray.add(QGLPoint(x, y));
}
void addPath(const QVectorPath &path, GLfloat curveInverseScale, bool outline = true);
void clear();
QGLPoint* data() {return vertexArray.data();}
int *stops() const { return vertexArrayStops.data(); }
int stopCount() const { return vertexArrayStops.size(); }
QGLRect boundingRect() const;
int vertexCount() const { return vertexArray.size(); }
void lineToArray(const GLfloat x, const GLfloat y);
private:
QDataBuffer<QGLPoint> vertexArray;
QDataBuffer<int> vertexArrayStops;
GLfloat maxX;
GLfloat maxY;
GLfloat minX;
GLfloat minY;
bool boundingRectDirty;
void addClosingLine(int index);
void addCentroid(const QVectorPath &path, int subPathIndex);
};
QT_END_NAMESPACE
#endif
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