This is the verbatim text of the qwmatrix.h include file. It is is provided only for illustration; the copyright remains with Troll Tech
/****************************************************************************
** $Id: qwmatrix.h,v 2.0 1996/09/24 10:16:05 agulbra Exp $
**
** Definition of QWMatrix class
**
** Created : 941020
**
** Copyright (C) 1994-1996 by Troll Tech AS. All rights reserved.
**
*****************************************************************************/
#ifndef QWMATRIX_H
#define QWMATRIX_H
#include "qwindefs.h"
#include "qpntarry.h"
#include "qrect.h"
class QWMatrix // 2D transform matrix
{
public:
QWMatrix();
QWMatrix( float m11, float m12, float m21, float m22,
float dx, float dy );
void setMatrix( float m11, float m12, float m21, float m22,
float dx, float dy );
float m11() const { return _m11; }
float m12() const { return _m12; }
float m21() const { return _m21; }
float m22() const { return _m22; }
float dx() const { return _dx; }
float dy() const { return _dy; }
void map( int x, int y, int *tx, int *ty ) const;
void map( float x, float y, float *tx, float *ty ) const;
QPoint map( const QPoint & ) const;
QRect map( const QRect & ) const;
QPointArray map( const QPointArray & ) const;
void reset();
QWMatrix &translate( float dx, float dy );
QWMatrix &scale( float sx, float sy );
QWMatrix &shear( float sh, float sv );
QWMatrix &rotate( float a );
QWMatrix invert( bool * = 0 ) const;
bool operator==( const QWMatrix & ) const;
bool operator!=( const QWMatrix & ) const;
QWMatrix &operator*=( const QWMatrix & );
private:
QWMatrix &bmul( const QWMatrix & );
float _m11, _m12;
float _m21, _m22;
float _dx, _dy;
};
QWMatrix operator*( const QWMatrix &, const QWMatrix & );
/*****************************************************************************
QWMatrix stream functions
*****************************************************************************/
QDataStream &operator<<( QDataStream &, const QWMatrix & );
QDataStream &operator>>( QDataStream &, QWMatrix & );
#endif // QWMATRIX_H