qopenvgmatrix.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
 
#ifndef QOPENVGMATRIX_H
#define QOPENVGMATRIX_H
 
#include <QtCore/qdebug.h>
#include <QtCore/QDataStream>
#include <QtCore/QPointF>
 
QT_BEGIN_NAMESPACE
 
class QOpenVGMatrix
{
public:
    QOpenVGMatrix();
    explicit QOpenVGMatrix(const float *values);
 
    const float& operator()(int row, int column) const;
    float& operator()(int row, int column);
 
    bool isIdentity() const;
    void setToIdentity();
 
    bool isAffine() const;
 
    QPointF map(const QPointF& point) const;
 
    void fill(float value);
 
    QOpenVGMatrix transposed() const;
 
    QOpenVGMatrix& operator+=(const QOpenVGMatrix& other);
    QOpenVGMatrix& operator-=(const QOpenVGMatrix& other);
    QOpenVGMatrix& operator*=(const QOpenVGMatrix& other);
    QOpenVGMatrix& operator*=(float factor);
    QOpenVGMatrix& operator/=(float divisor);
    friend QOpenVGMatrix operator*(const QOpenVGMatrix& m1, const QOpenVGMatrix& m2);
    friend QPointF operator*(const QPointF& point, const QOpenVGMatrix& matrix);
    friend QPointF operator*(const QOpenVGMatrix& matrix, const QPointF& point);
#ifndef QT_NO_DEBUG_STREAM
    friend QDebug operator<<(QDebug dbg, const QOpenVGMatrix &m);
#endif
    bool operator==(const QOpenVGMatrix& other) const;
    bool operator!=(const QOpenVGMatrix& other) const;
 
    void copyDataTo(float *values) const;
 
    float *data() { return *m; }
    const float *data() const { return *m; }
    const float *constData() const { return *m; }
 
private:
    float m[3][3];
};
 
QOpenVGMatrix operator*(const QOpenVGMatrix& m1, const QOpenVGMatrix& m2);
QPointF operator*(const QPointF& point, const QOpenVGMatrix& matrix);
QPointF operator*(const QOpenVGMatrix& matrix, const QPointF& point);
 
#ifndef QT_NO_DEBUG_STREAM
QDebug operator<<(QDebug dbg, const QOpenVGMatrix &m);
#endif
 
#ifndef QT_NO_DATASTREAM
QDataStream &operator<<(QDataStream &, const QOpenVGMatrix &);
QDataStream &operator>>(QDataStream &, QOpenVGMatrix &);
#endif
 
QT_END_NAMESPACE
 
#endif // QOPENVGMATRIX_H