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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 - qwidget.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>qwidget.h</h1><br clear="all">This is the verbatim text of the qwidget.h include file. It isprovided only for illustration; the copyrightremains with Trolltech.<hr><pre>/****************************************************************************** $Id: qt/src/kernel/qwidget.h 2.3.8 edited 2004-05-12 $**** Definition of QWidget class**** Created : 931029**** 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 QWIDGET_H#define QWIDGET_H#ifndef QT_H#include "qwindowdefs.h"#include "qobject.h"#include "qpaintdevice.h"#include "qpalette.h"#include "qcursor.h"#include "qfont.h"#include "qfontmetrics.h"#include "qfontinfo.h"#include "qstyle.h"#include "qsizepolicy.h"#endif // QT_Hclass <a href="qlayout.html">QLayout</a>;struct QWExtra;struct QTLWExtra;class <a href="qfocusdata.html">QFocusData</a>;class <a href="qstyle.html">QStyle</a>;class QWSRegionManager;class Q_EXPORT <a href="qwidget.html">QWidget</a> : public <a href="qobject.html">QObject</a>, public <a href="qpaintdevice.html">QPaintDevice</a>{ Q_OBJECT Q_ENUMS( BackgroundMode PropagationMode FocusPolicy BackgroundOrigin ) Q_PROPERTY( bool isTopLevel READ isTopLevel ) Q_PROPERTY( bool isModal READ isModal ) Q_PROPERTY( bool isPopup READ isPopup ) Q_PROPERTY( bool isDesktop READ isDesktop ) Q_PROPERTY( bool enabled READ isEnabled WRITE setEnabled ) Q_PROPERTY( QRect geometry READ geometry WRITE setGeometry ) Q_PROPERTY( QRect frameGeometry READ frameGeometry ) Q_PROPERTY( int x READ x ) Q_PROPERTY( int y READ y ) Q_PROPERTY( QPoint pos READ pos ) Q_PROPERTY( QSize frameSize READ frameSize ) Q_PROPERTY( QSize size READ size WRITE resize DESIGNABLE false ) Q_PROPERTY( int width READ width ) Q_PROPERTY( int height READ height ) Q_PROPERTY( QRect rect READ rect ) Q_PROPERTY( QRect childrenRect READ childrenRect ) Q_PROPERTY( QRegion childrenRegion READ childrenRegion ) Q_PROPERTY( QSizePolicy sizePolicy READ sizePolicy WRITE setSizePolicy ) Q_PROPERTY( QSize minimumSize READ minimumSize WRITE setMinimumSize ) Q_PROPERTY( QSize maximumSize READ maximumSize WRITE setMaximumSize ) Q_PROPERTY( int minimumWidth READ minimumWidth WRITE setMinimumWidth STORED false ) Q_PROPERTY( int minimumHeight READ minimumHeight WRITE setMinimumHeight STORED false ) Q_PROPERTY( int maximumWidth READ maximumWidth WRITE setMaximumWidth STORED false ) Q_PROPERTY( int maximumHeight READ maximumHeight WRITE setMaximumHeight STORED false ) Q_PROPERTY( QSize sizeIncrement READ sizeIncrement WRITE setSizeIncrement ) Q_PROPERTY( QSize baseSize READ baseSize WRITE setBaseSize ) Q_PROPERTY( BackgroundMode backgroundMode READ backgroundMode WRITE setBackgroundMode DESIGNABLE false ) Q_PROPERTY( QColor backgroundColor READ backgroundColor WRITE setBackgroundColor DESIGNABLE false ) Q_PROPERTY( QColor foregroundColor READ foregroundColor ) Q_PROPERTY( QPixmap backgroundPixmap READ backgroundPixmap WRITE setBackgroundPixmap DESIGNABLE false ) Q_PROPERTY( QColorGroup colorGroup READ colorGroup ) Q_PROPERTY( QPalette palette READ palette WRITE setPalette RESET unsetPalette ) Q_PROPERTY( bool ownPalette READ ownPalette ) Q_PROPERTY( QFont font READ font WRITE setFont RESET unsetFont ) Q_PROPERTY( bool ownFont READ ownFont )#ifndef QT_NO_CURSOR Q_PROPERTY( QCursor cursor READ cursor WRITE setCursor RESET unsetCursor ) Q_PROPERTY( bool ownCursor READ ownCursor )#endif Q_PROPERTY( QString caption READ caption WRITE setCaption ) Q_PROPERTY( QPixmap icon READ icon WRITE setIcon ) Q_PROPERTY( QString iconText READ iconText WRITE setIconText ) Q_PROPERTY( bool mouseTracking READ hasMouseTracking WRITE setMouseTracking ) Q_PROPERTY( bool isActiveWindow READ isActiveWindow ) Q_PROPERTY( bool focusEnabled READ isFocusEnabled ) Q_PROPERTY( FocusPolicy focusPolicy READ focusPolicy WRITE setFocusPolicy ) Q_PROPERTY( bool focus READ hasFocus ) Q_PROPERTY( bool updatesEnabled READ isUpdatesEnabled WRITE setUpdatesEnabled DESIGNABLE false ) Q_PROPERTY( bool visible READ isVisible ) Q_PROPERTY( QRect visibleRect READ visibleRect ) Q_PROPERTY( bool hidden READ isHidden ) Q_PROPERTY( bool minimized READ isMinimized ) Q_PROPERTY( QSize sizeHint READ sizeHint ) Q_PROPERTY( QSize minimumSizeHint READ minimumSizeHint ) Q_PROPERTY( QRect microFocusHint READ microFocusHint ) Q_PROPERTY( bool acceptDrops READ acceptDrops WRITE setAcceptDrops ) Q_PROPERTY( bool autoMask READ autoMask WRITE setAutoMask ) Q_PROPERTY( BackgroundOrigin backgroundOrigin READ backgroundOrigin WRITE setBackgroundOrigin ) Q_PROPERTY( bool customWhatsThis READ customWhatsThis )public: QWidget( QWidget *parent=0, const char *name=0, WFlags f=0 ); ~QWidget(); WId winId() const; void setName( const char *name );#ifndef QT_NO_STYLE // GUI style setting QStyle &style() const; void setStyle( QStyle * );#endif#ifdef QT_KEYPAD_MODE bool isModalEditing() const; void setModalEditing(bool); QWidget* editingWidget() const;#endif // Widget types and states bool isTopLevel() const; bool isModal() const; bool isPopup() const; bool isDesktop() const; bool isEnabled() const; bool isEnabledTo(QWidget*) const; bool isEnabledToTLW() const;public slots: virtual void setEnabled( bool ); void setDisabled( bool ); // Widget coordinatespublic: QRect frameGeometry() const; const QRect &geometry() const; int x() const; int y() const; QPoint pos() const; QSize frameSize() const; QSize size() const; int width() const; int height() const; QRect rect() const; QRect childrenRect() const; QRegion childrenRegion() const; QSize minimumSize() const; QSize maximumSize() const; int minimumWidth() const; int minimumHeight() const; int maximumWidth() const; int maximumHeight() const; void setMinimumSize( const QSize & ); virtual void setMinimumSize( int minw, int minh ); void setMaximumSize( const QSize & ); virtual void setMaximumSize( int maxw, int maxh ); void setMinimumWidth( int minw ); void setMinimumHeight( int minh ); void setMaximumWidth( int maxw ); void setMaximumHeight( int maxh ); QSize sizeIncrement() const; void setSizeIncrement( const QSize & ); virtual void setSizeIncrement( int w, int h ); QSize baseSize() const; void setBaseSize( const QSize & ); void setBaseSize( int basew, int baseh ); void setFixedSize( const QSize & ); void setFixedSize( int w, int h ); void setFixedWidth( int w ); void setFixedHeight( int h ); // Widget coordinate mapping QPoint mapToGlobal( const QPoint & ) const; QPoint mapFromGlobal( const QPoint & ) const; QPoint mapToParent( const QPoint & ) const; QPoint mapFromParent( const QPoint & ) const; QPoint mapTo( QWidget *, const QPoint & ) const; QPoint mapFrom( QWidget *, const QPoint & ) const; QWidget *topLevelWidget() const; // Widget attribute functions enum BackgroundMode { FixedColor, FixedPixmap, NoBackground, PaletteForeground, PaletteButton, PaletteLight, PaletteMidlight, PaletteDark, PaletteMid, PaletteText, PaletteBrightText, PaletteBase, PaletteBackground, PaletteShadow, PaletteHighlight, PaletteHighlightedText, PaletteButtonText, X11ParentRelative }; BackgroundMode backgroundMode() const; virtual void setBackgroundMode( BackgroundMode ); const QColor & backgroundColor() const; const QColor & foregroundColor() const; virtual void setBackgroundColor( const QColor & ); const QPixmap * backgroundPixmap() const; virtual void setBackgroundPixmap( const QPixmap & );#ifndef QT_NO_PALETTE const QColorGroup & colorGroup() const; const QPalette & palette() const; bool ownPalette() const; virtual void setPalette( const QPalette & ); void unsetPalette();#endif QFont font() const; bool ownFont() const; virtual void setFont( const QFont & ); void unsetFont(); QFontMetrics fontMetrics() const; QFontInfo fontInfo() const; enum PropagationMode { NoChildren, AllChildren, SameFont, SamePalette = SameFont }; PropagationMode fontPropagation() const; // obsolete, remove 3.0 virtual void setFontPropagation( PropagationMode ); // obsolete, remove 3.0 PropagationMode palettePropagation() const; // obsolete, remove 3.0 virtual void setPalettePropagation( PropagationMode ); // obsolete, remove 3.0#ifndef QT_NO_CURSOR const QCursor &cursor() const; bool ownCursor() const; virtual void setCursor( const QCursor & ); virtual void unsetCursor();#endif QString caption() const; const QPixmap *icon() const; QString iconText() const; bool hasMouseTracking() const; virtual void setMask( const QBitmap & ); virtual void setMask( const QRegion & ); void clearMask();public slots: virtual void setCaption( const QString &); virtual void setIcon( const QPixmap & ); virtual void setIconText( const QString &); virtual void setMouseTracking( bool enable ); // Keyboard input focus functions virtual void setFocus(); void clearFocus();public: enum FocusPolicy { NoFocus = 0, TabFocus = 0x1,⌨️ 快捷键说明
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