summaryrefslogtreecommitdiffstats
path: root/doc/html/qwmatrix-h.html
blob: a625aa27adec008a1ff8baf85a869fa713ffdef0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/include/qwmatrix.h:1 -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>qwmatrix.h Include File</title>
<style type="text/css"><!--
fn { margin-left: 1cm; text-indent: -1cm; }
a:link { color: #004faf; text-decoration: none }
a:visited { color: #672967; text-decoration: none }
body { background: #ffffff; color: black; }
--></style>
</head>
<body>

<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr bgcolor="#E5E5E5">
<td valign=center>
 <a href="index.html">
<font color="#004faf">Home</font></a>
 | <a href="classes.html">
<font color="#004faf">All&nbsp;Classes</font></a>
 | <a href="mainclasses.html">
<font color="#004faf">Main&nbsp;Classes</font></a>
 | <a href="annotated.html">
<font color="#004faf">Annotated</font></a>
 | <a href="groups.html">
<font color="#004faf">Grouped&nbsp;Classes</font></a>
 | <a href="functions.html">
<font color="#004faf">Functions</font></a>
</td>
<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>

<p>This is the verbatim text of the qwmatrix.h include file. It is provided only for illustration; the copyright remains with Trolltech.
<hr>
<pre>
/****************************************************************************
** $Id: qt/qwmatrix.h   3.3.8   edited Jan 11 14:38 $
**
** Definition of TQWMatrix class
**
** Created : 941020
**
** Copyright (C) 1992-2007 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 file LICENSE.GPL 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 requirements 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 &amp; )	const;

    TQPoint	map( const TQPoint &amp;p )	const { return operator *( p ); }
    TQRect	map( const TQRect &amp;r )	const { return mapRect ( r ); }
    TQPointArray map( const TQPointArray &amp;a ) const { return operator * ( a ); }
    TQRegion     map( const TQRegion &amp;r ) const { return operator *( r ); }
    TQRegion     mapToRegion( const TQRect &amp;r ) const { return operator *( r ); }
    TQPointArray	mapToPolygon( const TQRect &amp;r )	const;

    void	reset();
    bool	isIdentity() const;

    TQWMatrix   &amp;translate( double dx, double dy );
    TQWMatrix   &amp;scale( double sx, double sy );
    TQWMatrix   &amp;shear( double sh, double sv );
    TQWMatrix   &amp;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 &amp; ) const;
    bool	operator!=( const TQWMatrix &amp; ) const;
    TQWMatrix   &amp;operator*=( const TQWMatrix &amp; );

    /* we use matrix multiplication semantics here */
    TQPoint operator * (const TQPoint &amp; ) const;
    TQRegion operator * (const TQRect &amp; ) const;
    TQRegion operator * (const TQRegion &amp; ) const;
    TQPointArray operator *  ( const TQPointArray &amp;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 &amp;, const TQWMatrix &amp; );


/*****************************************************************************
  TQWMatrix stream functions
 *****************************************************************************/

Q_EXPORT TQDataStream &amp;operator&lt;&lt;( TQDataStream &amp;, const TQWMatrix &amp; );
Q_EXPORT TQDataStream &amp;operator&gt;&gt;( TQDataStream &amp;, TQWMatrix &amp; );


#endif // QT_NO_WMATRIX

#endif // TQWMATRIX_H
</pre>
<!-- eof -->
<p><address><hr><div align=center>
<table width=100% cellspacing=0 border=0><tr>
<td>Copyright &copy; 2007
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
<td align=right><div align=right>TQt 3.3.8</div>
</table></div></address></body>
</html>