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Diffstat (limited to 'src/kernel/qwmatrix.h')
| -rw-r--r-- | src/kernel/qwmatrix.h | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/src/kernel/qwmatrix.h b/src/kernel/qwmatrix.h new file mode 100644 index 000000000..ca4d79c8b --- /dev/null +++ b/src/kernel/qwmatrix.h @@ -0,0 +1,129 @@ +/**************************************************************************** +** +** Definition of TQWMatrix class +** +** Created : 941020 +** +** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. +** +** This file is part of the kernel module of the TQt GUI Toolkit. +** +** This file may be used under the terms of the GNU General +** Public License versions 2.0 or 3.0 as published by the Free +** Software Foundation and appearing in the files LICENSE.GPL2 +** and LICENSE.GPL3 included in the packaging of this file. +** Alternatively you may (at your option) use any later version +** of the GNU General Public License if such license has been +** publicly approved by Trolltech ASA (or its successors, if any) +** and the KDE Free TQt Foundation. +** +** Please review the following information to ensure GNU General +** Public Licensing retquirements will be met: +** http://trolltech.com/products/qt/licenses/licensing/opensource/. +** If you are unsure which license is appropriate for your use, please +** review the following information: +** http://trolltech.com/products/qt/licenses/licensing/licensingoverview +** or contact the sales department at sales@trolltech.com. +** +** This file may be used under the terms of the Q Public License as +** defined by Trolltech ASA and appearing in the file LICENSE.TQPL +** included in the packaging of this file. Licensees holding valid TQt +** Commercial licenses may use this file in accordance with the TQt +** Commercial License Agreement provided with the Software. +** +** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, +** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted +** herein. +** +**********************************************************************/ + +#ifndef TQWMATRIX_H +#define TQWMATRIX_H + +#ifndef QT_H +#include "qwindowdefs.h" +#include "qpointarray.h" +#include "qrect.h" +#include "qregion.h" +#endif // QT_H + +#ifndef QT_NO_WMATRIX + + +class Q_EXPORT TQWMatrix // 2D transform matrix +{ +public: + TQWMatrix(); + TQWMatrix( 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; + TQRect mapRect( const TQRect & ) const; + + TQPoint map( const TQPoint &p ) const { return operator *( p ); } + TQRect map( const TQRect &r ) const { return mapRect ( r ); } + TQPointArray map( const TQPointArray &a ) const { return operator * ( a ); } + TQRegion map( const TQRegion &r ) const { return operator *( r ); } + TQRegion mapToRegion( const TQRect &r ) const { return operator *( r ); } + TQPointArray mapToPolygon( const TQRect &r ) const; + + void reset(); + bool isIdentity() const; + + TQWMatrix &translate( double dx, double dy ); + TQWMatrix &scale( double sx, double sy ); + TQWMatrix &shear( double sh, double sv ); + TQWMatrix &rotate( double a ); + + bool isInvertible() const { return (_m11*_m22 - _m12*_m21) != 0; } + double det() const { return _m11*_m22 - _m12*_m21; } + + TQWMatrix invert( bool * = 0 ) const; + + bool operator==( const TQWMatrix & ) const; + bool operator!=( const TQWMatrix & ) const; + TQWMatrix &operator*=( const TQWMatrix & ); + + /* we use matrix multiplication semantics here */ + TQPoint operator * (const TQPoint & ) const; + TQRegion operator * (const TQRect & ) const; + TQRegion operator * (const TQRegion & ) const; + TQPointArray operator * ( const TQPointArray &a ) const; + + enum TransformationMode { + Points, Areas + }; + static void setTransformationMode( TQWMatrix::TransformationMode m ); + static TransformationMode transformationMode(); +private: + double _m11, _m12; + double _m21, _m22; + double _dx, _dy; +}; + +Q_EXPORT TQWMatrix operator*( const TQWMatrix &, const TQWMatrix & ); + + +/***************************************************************************** + TQWMatrix stream functions + *****************************************************************************/ + +Q_EXPORT TQDataStream &operator<<( TQDataStream &, const TQWMatrix & ); +Q_EXPORT TQDataStream &operator>>( TQDataStream &, TQWMatrix & ); + + +#endif // QT_NO_WMATRIX + +#endif // TQWMATRIX_H |