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This is the verbatim text of the qwmatrix.h include file. It is provided only for illustration; the copyright remains with Trolltech.
** $Id: //depot/qt/main/src/kernel/qwmatrix.h#14 $
** Definition of QWMatrix class
** Created : 941020
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#ifndef QWMATRIX_H
#define QWMATRIX_H

#ifndef QT_H
#include "qwindowdefs.h"
#include "qpointarray.h"
#include "qrect.h"
#endif // QT_H


class Q_EXPORT QWMatrix                                 // 2D transform matrix
    QWMatrix( double m11, double m12, double m21, double m22,
              double dx, double dy );

    void        setMatrix( double m11, double m12, double m21, double m22,
                           double dx,  double dy );

    double      m11() const { return _m11; }
    double      m12() const { return _m12; }
    double      m21() const { return _m21; }
    double      m22() const { return _m22; }
    double      dx()  const { return _dx; }
    double      dy()  const { return _dy; }

    void        map( int x, int y, int *tx, int *ty )         const;
    void        map( double x, double y, double *tx, double *ty ) const;
    QPoint      map( const QPoint & )   const;
    QRect       map( const QRect & )    const;
    QPointArray map( const QPointArray & ) const;

    void        reset();

    QWMatrix   &translate( double dx, double dy );
    QWMatrix   &scale( double sx, double sy );
    QWMatrix   &shear( double sh, double sv );
    QWMatrix   &rotate( double a );

    QWMatrix    invert( bool * = 0 ) const;

    bool        operator==( const QWMatrix & ) const;
    bool        operator!=( const QWMatrix & ) const;
    QWMatrix   &operator*=( const QWMatrix & );

    QWMatrix   &bmul( const QWMatrix & );
    double      _m11, _m12;
    double      _m21, _m22;
    double      _dx,  _dy;

Q_EXPORT QWMatrix operator*( const QWMatrix &, const QWMatrix & );

  QWMatrix stream functions

Q_EXPORT QDataStream &operator<<( QDataStream &, const QWMatrix & );
Q_EXPORT QDataStream &operator>>( QDataStream &, QWMatrix & );

#endif // QT_NO_WMATRIX

#endif // QWMATRIX_H

Copyright © 2005 TrolltechTrademarks
Qt version 2.3.10