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qt3/doc/html/qsizepolicy-h.html

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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>qsizepolicy.h</h1>
<p>This is the verbatim text of the qsizepolicy.h include file. It is provided only for illustration; the copyright remains with Trolltech.
<hr>
<pre>
/****************************************************************************
** $Id: qt/qsizepolicy.h 3.3.8 edited Jan 11 14:46 $
**
** Definition of the QSizePolicy class
**
** Created : 980929
**
** Copyright (C) 1998-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the kernel module of the Qt 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 Qt 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.QPL
** included in the packaging of this file. Licensees holding valid Qt
** Commercial licenses may use this file in accordance with the Qt
** 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 QSIZEPOLICY_H
#define QSIZEPOLICY_H
#ifndef QT_H
#include "qglobal.h"
#endif // QT_H
// Documentation is in qabstractlayout.cpp.
class Q_EXPORT QSizePolicy
{
private:
enum SizePolicy_Internal { HSize = 6, HMask = 0x3f, VMask = HMask &lt;&lt; HSize,
MayGrow = 1, ExpMask = 2, MayShrink = 4 };
public:
enum SizeType { Fixed = 0,
Minimum = MayGrow,
Maximum = MayShrink,
Preferred = MayGrow | MayShrink,
MinimumExpanding = MayGrow | ExpMask,
Expanding = MayGrow | MayShrink | ExpMask,
Ignored = ExpMask /* magic value */ };
enum ExpandData { NoDirection = 0,
Horizontally = 1,
Vertically = 2,
#ifndef QT_NO_COMPAT
Horizontal = Horizontally,
Vertical = Vertically,
#endif
BothDirections = Horizontally | Vertically };
QSizePolicy() : data( 0 ) { }
QSizePolicy( SizeType hor, SizeType ver, bool hfw = FALSE )
: data( hor | (ver&lt;&lt;HSize) | (hfw ? (Q_UINT32)(1&lt;&lt;2*HSize) : 0) ) { }
QSizePolicy( SizeType hor, SizeType ver, uchar hors, uchar vers, bool hfw = FALSE );
SizeType horData() const { return (SizeType)( data &amp; HMask ); }
SizeType verData() const { return (SizeType)( (data &amp; VMask) &gt;&gt; HSize ); }
bool mayShrinkHorizontally() const { return horData() &amp; MayShrink || horData() == Ignored; }
bool mayShrinkVertically() const { return verData() &amp; MayShrink || verData() == Ignored; }
bool mayGrowHorizontally() const { return horData() &amp; MayGrow || horData() == Ignored; }
bool mayGrowVertically() const { return verData() &amp; MayGrow || verData() == Ignored; }
ExpandData expanding() const
{
return (ExpandData)( (int)(verData() &amp; ExpMask ? Vertically : 0) |
(int)(horData() &amp; ExpMask ? Horizontally : 0) );
}
void setHorData( SizeType d ) { data = (Q_UINT32)(data &amp; ~HMask) | d; }
void setVerData( SizeType d ) { data = (Q_UINT32)(data &amp; ~(HMask &lt;&lt; HSize)) |
(d &lt;&lt; HSize); }
void setHeightForWidth( bool b ) { data = b ? (Q_UINT32)( data | ( 1 &lt;&lt; 2*HSize ) )
: (Q_UINT32)( data &amp; ~( 1 &lt;&lt; 2*HSize ) ); }
bool hasHeightForWidth() const { return data &amp; ( 1 &lt;&lt; 2*HSize ); }
bool operator==( const QSizePolicy&amp; s ) const { return data == s.data; }
bool operator!=( const QSizePolicy&amp; s ) const { return data != s.data; }
uint horStretch() const { return data &gt;&gt; 24; }
uint verStretch() const { return (data &gt;&gt; 16) &amp; 0xff; }
void setHorStretch( uchar sf ) { data = (data&amp;0x00ffffff) | (uint(sf)&lt;&lt;24); }
void setVerStretch( uchar sf ) { data = (data&amp;0xff00ffff) | (uint(sf)&lt;&lt;16); }
inline void transpose();
private:
QSizePolicy( int i ) : data( (Q_UINT32)i ) { }
Q_UINT32 data;
};
inline QSizePolicy::QSizePolicy( SizeType hor, SizeType ver, uchar hors, uchar vers, bool hfw )
: data( hor | (ver&lt;&lt;HSize) | (hfw ? (Q_UINT32)(1&lt;&lt;2*HSize) : 0) ) {
setHorStretch( hors );
setVerStretch( vers );
}
inline void QSizePolicy::transpose() {
*this = QSizePolicy( verData(), horData(), verStretch(), horStretch(),
hasHeightForWidth() );
}
#endif // QSIZEPOLICY_H
</pre>
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