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- /****************************************************************************
- ** $Id: qwmatrix.h,v 2.4 1998/07/03 00:09:42 hanord Exp $
- **
- ** Definition of QWMatrix class
- **
- ** Created : 941020
- **
- ** Copyright (C) 1992-1998 Troll Tech AS. All rights reserved.
- **
- ** This file is part of Qt Free Edition, version 1.40.
- **
- ** See the file LICENSE included in the distribution for the usage
- ** and distribution terms, or http://www.troll.no/free-license.html.
- **
- ** IMPORTANT NOTE: You may NOT copy this file or any part of it into
- ** your own programs or libraries.
- **
- ** Please see http://www.troll.no/pricing.html for information about
- ** Qt Professional Edition, which is this same library but with a
- ** license which allows creation of commercial/proprietary software.
- **
- *****************************************************************************/
-
- #ifndef QWMATRIX_H
- #define QWMATRIX_H
-
- #ifndef QT_H
- #include "qwindowdefs.h"
- #include "qpointarray.h"
- #include "qrect.h"
- #endif // QT_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
-