qopengl2pexvertexarray_p.h

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// Copyright (C) 2016 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

//

//  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.

//

// Qt-Security score:significant reason:default

#ifndef QOPENGL2PEXVERTEXARRAY_P_H

#define QOPENGL2PEXVERTEXARRAY_P_H

#include <QRectF>

#include <private/qdatabuffer_p.h>

#include <private/qvectorpath_p.h>

#include <private/qopenglcontext_p.h>

QT_BEGIN_NAMESPACE

class QOpenGLPoint

public:

    QOpenGLPoint(GLfloat new_x, GLfloat new_y) :

        x(new_x), y(new_y) {}

    QOpenGLPoint(const QPointF &p) :

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

    QOpenGLPoint(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);}

};

Q_DECLARE_TYPEINFO(QOpenGLPoint, Q_PRIMITIVE_TYPE);

struct QOpenGLRect

    QOpenGLRect(const QRectF &r)

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

    QOpenGLRect(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);}

};

Q_DECLARE_TYPEINFO(QOpenGLRect, Q_PRIMITIVE_TYPE);

class QOpenGL2PEXVertexArray

public:

    QOpenGL2PEXVertexArray() :

        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 << QOpenGLPoint(left, top)

                    << QOpenGLPoint(right, top)

                    << QOpenGLPoint(right, bottom)

                    << QOpenGLPoint(right, bottom)

                    << QOpenGLPoint(left, bottom)

                    << QOpenGLPoint(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 << QOpenGLPoint(left, top)

                    << QOpenGLPoint(right, top)

                    << QOpenGLPoint(left, bottom)

                    << QOpenGLPoint(right, bottom);

    inline void addVertex(const GLfloat x, const GLfloat y)

        vertexArray.add(QOpenGLPoint(x, y));

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

    void clear();

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

    int *stops() const { return vertexArrayStops.data(); }

    int stopCount() const { return vertexArrayStops.size(); }

    QOpenGLRect         boundingRect() const;

    int vertexCount() const { return vertexArray.size(); }

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

private:

    QDataBuffer<QOpenGLPoint> 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