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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Qt Toolkit - qvariant.h include file</title><style type="text/css"><!--h3.fn,span.fn { margin-left: 1cm; text-indent: -1cm; }a:link { color: #004faf; text-decoration: none }a:visited { color: #672967; text-decoration: none }body { background: white; color: black; }--></style></head><body bgcolor="#ffffff"><table width="100%"><tr><td><a href="index.html"><img width="100" height="100" src="qtlogo.png"alt="Home" border="0"><img width="100"height="100" src="face.png" alt="Home" border="0"></a><td valign="top"><div align="right"><img src="dochead.png" width="472" height="27"><br><a href="classes.html"><b>Classes</b></a>- <a href="annotated.html">Annotated</a>- <a href="hierarchy.html">Tree</a>- <a href="functions.html">Functions</a>- <a href="index.html">Home</a>- <a href="topicals.html"><b>Structure</b> <font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" align="center" size=32>Qte</font></a></div></table><h1 align=center>qvariant.h</h1><br clear="all">This is the verbatim text of the qvariant.h include file. It isprovided only for illustration; the copyrightremains with Trolltech.<hr><pre>/****************************************************************************** $Id: qt/src/kernel/qvariant.h 2.3.8 edited 2004-05-12 $**** Definition of QVariant class**** Created : 990414**** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.**** This file is part of the kernel module of the Qt GUI Toolkit.**** This file may be distributed under the terms of the Q Public License** as defined by Trolltech AS of Norway and appearing in the file** LICENSE.QPL included in the packaging of this file.**** This file may be distributed and/or modified under the terms of the** GNU General Public License version 2 as published by the Free Software** Foundation and appearing in the file LICENSE.GPL included in the** packaging of this file.**** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition** 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** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.**** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for** information about Qt Commercial License Agreements.** See http://www.trolltech.com/qpl/ for QPL licensing information.** See http://www.trolltech.com/gpl/ for GPL licensing information.**** Contact info@trolltech.com if any conditions of this licensing are** not clear to you.************************************************************************/#ifndef QVARIANT_H#define QVARIANT_H#ifndef QT_H#include "qstring.h"#endif // QT_H#ifndef QT_NO_VARIANTclass <a href="qstring.html">QString</a>;class <a href="qcstring.html">QCString</a>;class <a href="qfont.html">QFont</a>;class <a href="qpixmap.html">QPixmap</a>;class <a href="qbrush.html">QBrush</a>;class <a href="qrect.html">QRect</a>;class <a href="qpoint.html">QPoint</a>;class <a href="qimage.html">QImage</a>;class <a href="qsize.html">QSize</a>;class <a href="qcolor.html">QColor</a>;class <a href="qpalette.html">QPalette</a>;class <a href="qcolorgroup.html">QColorGroup</a>;class <a href="qiconset.html">QIconSet</a>;class <a href="qdatastream.html">QDataStream</a>;class <a href="qpointarray.html">QPointArray</a>;class <a href="qregion.html">QRegion</a>;class <a href="qbitmap.html">QBitmap</a>;class <a href="qcursor.html">QCursor</a>;class <a href="qstringlist.html">QStringList</a>;class <a href="qsizepolicy.html">QSizePolicy</a>;// Relevant header files rejected after QVariant declaration// for GCC 2.7.* compatibilityclass <a href="qvariant.html">QVariant</a>;class QVariantPrivate;template <class T> class QValueList;template <class T> class QValueListConstIterator;template <class T> class QValueListNode;template <class Key, class T> class QMap;template <class Key, class T> class QMapConstIterator;class Q_EXPORT <a href="qvariant.html">QVariant</a>{public: enum Type { Invalid, Map, List, String, StringList, Font, Pixmap, Brush, Rect, Size, Color, Palette, ColorGroup, IconSet, Point, Image, Int, UInt, Bool, Double, CString, PointArray, Region, Bitmap, Cursor, SizePolicy }; QVariant(); ~QVariant(); QVariant( const QVariant& ); QVariant( QDataStream& s ); QVariant( const QString& ); QVariant( const QCString& ); QVariant( const char* ); QVariant( const QStringList& ); QVariant( const QFont& ); QVariant( const QPixmap& ); QVariant( const QImage& ); QVariant( const QBrush& ); QVariant( const QPoint& ); QVariant( const QRect& ); QVariant( const QSize& ); QVariant( const QColor& ); QVariant( const QPalette& ); QVariant( const QColorGroup& );#ifndef QT_NO_ICONSET QVariant( const QIconSet& );#endif QVariant( const QPointArray& ); QVariant( const QRegion& ); QVariant( const QBitmap& ); QVariant( const QCursor& ); QVariant( const QValueList<QVariant>& ); QVariant( const QMap<QString,QVariant>& ); QVariant( int ); QVariant( uint ); // ### Problems on some compilers ? QVariant( bool, int ); QVariant( double ); QVariant( QSizePolicy ); QVariant& operator= ( const QVariant& ); bool operator==( const QVariant& ) const; bool operator!=( const QVariant& ) const; Type type() const; const char* typeName() const; bool canCast( Type ) const; bool isValid() const; void clear(); const QString toString() const; const QCString toCString() const; const QStringList toStringList() const; const QFont toFont() const; const QPixmap toPixmap() const; const QImage toImage() const; const QBrush toBrush() const; const QPoint toPoint() const; const QRect toRect() const; const QSize toSize() const; const QColor toColor() const; const QPalette toPalette() const; const QColorGroup toColorGroup() const;#ifndef QT_NO_ICONSET const QIconSet toIconSet() const;#endif const QPointArray toPointArray() const; const QBitmap toBitmap() const; const QRegion toRegion() const; const QCursor toCursor() const; int toInt() const; uint toUInt() const; bool toBool() const; double toDouble() const; const QValueList<QVariant> toList() const; const QMap<QString,QVariant> toMap() const; QSizePolicy toSizePolicy() const; QValueListConstIterator<QVariant> listBegin() const; QValueListConstIterator<QVariant> listEnd() const; QValueListConstIterator<QString> stringListBegin() const; QValueListConstIterator<QString> stringListEnd() const; QMapConstIterator<QString,QVariant> mapBegin() const; QMapConstIterator<QString,QVariant> mapEnd() const; QMapConstIterator<QString,QVariant> mapFind( const QString& ) const; QString& asString(); QCString& asCString(); QStringList& asStringList(); QFont& asFont(); QPixmap& asPixmap(); QImage& asImage(); QBrush& asBrush(); QPoint& asPoint(); QRect& asRect(); QSize& asSize(); QColor& asColor(); QPalette& asPalette(); QColorGroup& asColorGroup();#ifndef QT_NO_ICONSET QIconSet& asIconSet();#endif QPointArray& asPointArray(); QBitmap& asBitmap(); QRegion& asRegion(); QCursor& asCursor(); int& asInt(); uint& asUInt(); bool& asBool(); double& asDouble(); QValueList<QVariant>& asList(); QMap<QString,QVariant>& asMap(); QSizePolicy& asSizePolicy(); void load( QDataStream& ); void save( QDataStream& ) const; static const char* typeToName( Type typ ); static Type nameToType( const char* name );private: void detach(); QVariantPrivate* d;};class QVariantPrivate : public QShared{public: QVariantPrivate(); QVariantPrivate( QVariantPrivate* ); ~QVariantPrivate(); void clear(); QVariant::Type typ; union { uint u; int i; bool b; double d; void *ptr; } value;};// These header files are down here for GCC 2.7.* compatibility#ifndef QT_H#include "qvaluelist.h"#include "qstringlist.h"#include "qmap.h"#endif // QT_Hinline QVariant::Type QVariant::type() const{ return d->typ;}inline bool QVariant::isValid() const{ return (d->typ != Invalid);}inline QValueListConstIterator<QString> QVariant::stringListBegin() const{ if ( d->typ != StringList ) return QValueListConstIterator<QString>(); return ((const QStringList*)d->value.ptr)->begin();}inline QValueListConstIterator<QString> QVariant::stringListEnd() const{ if ( d->typ != StringList ) return QValueListConstIterator<QString>(); return ((const QStringList*)d->value.ptr)->end();}inline QValueListConstIterator<QVariant> QVariant::listBegin() const{ if ( d->typ != List ) return QValueListConstIterator<QVariant>(); return ((const QValueList<QVariant>*)d->value.ptr)->begin();}inline QValueListConstIterator<QVariant> QVariant::listEnd() const{ if ( d->typ != List ) return QValueListConstIterator<QVariant>(); return ((const QValueList<QVariant>*)d->value.ptr)->end();}inline QMapConstIterator<QString,QVariant> QVariant::mapBegin() const{ if ( d->typ != Map ) return QMapConstIterator<QString,QVariant>(); return ((const QMap<QString,QVariant>*)d->value.ptr)->begin();}inline QMapConstIterator<QString,QVariant> QVariant::mapEnd() const{ if ( d->typ != Map ) return QMapConstIterator<QString,QVariant>(); return ((const QMap<QString,QVariant>*)d->value.ptr)->end();}inline QMapConstIterator<QString,QVariant> QVariant::mapFind( const QString& key ) const{ if ( d->typ != Map ) return QMapConstIterator<QString,QVariant>(); return ((const QMap<QString,QVariant>*)d->value.ptr)->find( key );}Q_EXPORT QDataStream& operator>> ( QDataStream& s, QVariant& p );Q_EXPORT QDataStream& operator<< ( QDataStream& s, const QVariant& p );Q_EXPORT QDataStream& operator>> ( QDataStream& s, QVariant::Type& p );Q_EXPORT QDataStream& operator<< ( QDataStream& s, const QVariant::Type p );#endif // QT_NO_VARIANT#endif // QVARIANT_H</pre><p><address><hr><div align="center"><table width="100%" cellspacing="0" border="0"><tr><td>Copyright ⌨️ 快捷键说明
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