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| 20 | <font color="#004faf">Home</font></a>
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| 22 | <font color="#004faf">All Classes</font></a>
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| 24 | <font color="#004faf">Main Classes</font></a>
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| 28 | <font color="#004faf">Grouped Classes</font></a>
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| 30 | <font color="#004faf">Functions</font></a>
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| 31 | </td>
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| 32 | <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>qwmatrix.h</h1>
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| 33 |
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| 34 | <p>This is the verbatim text of the qwmatrix.h include file. It is provided only for illustration; the copyright remains with Trolltech.
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| 35 | <hr>
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| 36 | <pre>
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| 37 | /****************************************************************************
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| 38 | ** $Id: qwmatrix-h.html 2051 2007-02-21 10:04:20Z chehrlic $
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| 39 | **
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| 40 | ** Definition of QWMatrix class
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| 41 | **
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| 42 | ** Created : 941020
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| 43 | **
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| 44 | ** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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| 45 | **
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| 46 | ** This file is part of the kernel module of the Qt GUI Toolkit.
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| 47 | **
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| 48 | ** This file may be distributed under the terms of the Q Public License
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| 49 | ** as defined by Trolltech ASA of Norway and appearing in the file
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| 50 | ** LICENSE.QPL included in the packaging of this file.
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| 51 | **
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| 52 | ** This file may be distributed and/or modified under the terms of the
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| 53 | ** GNU General Public License version 2 as published by the Free Software
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| 54 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 55 | ** packaging of this file.
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| 56 | **
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| 57 | ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
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| 58 | ** licenses may use this file in accordance with the Qt Commercial License
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| 59 | ** Agreement provided with the Software.
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| 60 | **
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| 61 | ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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| 62 | ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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| 63 | **
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| 64 | ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
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| 65 | ** information about Qt Commercial License Agreements.
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| 66 | ** See http://www.trolltech.com/qpl/ for QPL licensing information.
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| 67 | ** See http://www.trolltech.com/gpl/ for GPL licensing information.
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| 68 | **
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| 69 | ** Contact info@trolltech.com if any conditions of this licensing are
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| 70 | ** not clear to you.
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| 71 | **
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| 72 | **********************************************************************/
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| 73 |
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| 74 | #ifndef QWMATRIX_H
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| 75 | #define QWMATRIX_H
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| 76 |
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| 77 | #ifndef QT_H
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| 78 | #include "qwindowdefs.h"
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| 79 | #include "qpointarray.h"
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| 80 | #include "qrect.h"
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| 81 | #include "qregion.h"
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| 82 | #endif // QT_H
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| 83 |
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| 84 | #ifndef QT_NO_WMATRIX
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| 85 |
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| 86 |
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| 87 | class Q_EXPORT QWMatrix // 2D transform matrix
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| 88 | {
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| 89 | public:
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| 90 | QWMatrix();
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| 91 | QWMatrix( double m11, double m12, double m21, double m22,
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| 92 | double dx, double dy );
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| 93 |
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| 94 | void setMatrix( double m11, double m12, double m21, double m22,
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| 95 | double dx, double dy );
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| 96 |
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| 97 | double m11() const { return _m11; }
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| 98 | double m12() const { return _m12; }
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| 99 | double m21() const { return _m21; }
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| 100 | double m22() const { return _m22; }
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| 101 | double dx() const { return _dx; }
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| 102 | double dy() const { return _dy; }
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| 103 |
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| 104 | void map( int x, int y, int *tx, int *ty ) const;
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| 105 | void map( double x, double y, double *tx, double *ty ) const;
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| 106 | QRect mapRect( const QRect & ) const;
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| 107 |
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| 108 | QPoint map( const QPoint &p ) const { return operator *( p ); }
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| 109 | QRect map( const QRect &r ) const { return mapRect ( r ); }
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| 110 | QPointArray map( const QPointArray &a ) const { return operator * ( a ); }
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| 111 | QRegion map( const QRegion &r ) const { return operator *( r ); }
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| 112 | QRegion mapToRegion( const QRect &r ) const { return operator *( r ); }
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| 113 | QPointArray mapToPolygon( const QRect &r ) const;
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| 114 |
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| 115 | void reset();
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| 116 | bool isIdentity() const;
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| 117 |
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| 118 | QWMatrix &translate( double dx, double dy );
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| 119 | QWMatrix &scale( double sx, double sy );
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| 120 | QWMatrix &shear( double sh, double sv );
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| 121 | QWMatrix &rotate( double a );
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| 122 |
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| 123 | bool isInvertible() const { return (_m11*_m22 - _m12*_m21) != 0; }
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| 124 | double det() const { return _m11*_m22 - _m12*_m21; }
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| 125 |
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| 126 | QWMatrix invert( bool * = 0 ) const;
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| 127 |
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| 128 | bool operator==( const QWMatrix & ) const;
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| 129 | bool operator!=( const QWMatrix & ) const;
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| 130 | QWMatrix &operator*=( const QWMatrix & );
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| 131 |
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| 132 | /* we use matrix multiplication semantics here */
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| 133 | QPoint operator * (const QPoint & ) const;
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| 134 | QRegion operator * (const QRect & ) const;
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| 135 | QRegion operator * (const QRegion & ) const;
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| 136 | QPointArray operator * ( const QPointArray &a ) const;
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| 137 |
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| 138 | enum TransformationMode {
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| 139 | Points, Areas
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| 140 | };
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| 141 | static void setTransformationMode( QWMatrix::TransformationMode m );
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| 142 | static TransformationMode transformationMode();
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| 143 | private:
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| 144 | double _m11, _m12;
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| 145 | double _m21, _m22;
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| 146 | double _dx, _dy;
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| 147 | };
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| 148 |
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| 149 | Q_EXPORT QWMatrix operator*( const QWMatrix &, const QWMatrix & );
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| 150 |
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| 151 |
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| 152 | /*****************************************************************************
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| 153 | QWMatrix stream functions
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| 154 | *****************************************************************************/
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| 155 |
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| 156 | Q_EXPORT QDataStream &operator<<( QDataStream &, const QWMatrix & );
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| 157 | Q_EXPORT QDataStream &operator>>( QDataStream &, QWMatrix & );
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| 158 |
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| 159 |
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| 160 | #endif // QT_NO_WMATRIX
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| 161 |
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| 162 | #endif // QWMATRIX_H
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| 163 | </pre>
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| 164 | <!-- eof -->
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| 165 | <p><address><hr><div align=center>
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| 166 | <table width=100% cellspacing=0 border=0><tr>
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| 167 | <td>Copyright © 2007
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| 168 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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| 169 | <td align=right><div align=right>Qt 3.3.8</div>
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| 170 | </table></div></address></body>
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| 171 | </html>
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