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qwidget.h
这里是qwidget.h包含文件的所有文本，一字不差。它仅仅用来说明，版权由Trolltech保留。
/**************************************************************************** ** $Id: qt/qwidget.h 3.0.5 edited Apr 30 21:58 $ ** ** 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 [email protected] 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 [email protected] 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 "qfont.h" #include "qfontmetrics.h" #include "qfontinfo.h" #include "qsizepolicy.h" #endif // QT_H class QLayout; struct QWExtra; struct QTLWExtra; class QFocusData; class QCursor; class QWSRegionManager; class QStyle; class Q_EXPORT QWidget : public QObject, public QPaintDevice { Q_OBJECT Q_ENUMS( BackgroundMode FocusPolicy BackgroundOrigin ) Q_PROPERTY( bool isTopLevel READ isTopLevel ) Q_PROPERTY( bool isDialog READ isDialog ) 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 WRITE move DESIGNABLE false STORED false ) Q_PROPERTY( QSize frameSize READ frameSize ) Q_PROPERTY( QSize size READ size WRITE resize DESIGNABLE false STORED 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 DESIGNABLE false ) Q_PROPERTY( int minimumHeight READ minimumHeight WRITE setMinimumHeight STORED false DESIGNABLE false ) Q_PROPERTY( int maximumWidth READ maximumWidth WRITE setMaximumWidth STORED false DESIGNABLE false ) Q_PROPERTY( int maximumHeight READ maximumHeight WRITE setMaximumHeight STORED false DESIGNABLE 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 paletteForegroundColor READ paletteForegroundColor WRITE setPaletteForegroundColor RESET unsetPalette ) Q_PROPERTY( QColor paletteBackgroundColor READ paletteBackgroundColor WRITE setPaletteBackgroundColor RESET unsetPalette ) Q_PROPERTY( QPixmap paletteBackgroundPixmap READ paletteBackgroundPixmap WRITE setPaletteBackgroundPixmap RESET unsetPalette ) Q_PROPERTY( QBrush backgroundBrush READ backgroundBrush ) Q_PROPERTY( QColorGroup colorGroup READ colorGroup ) Q_PROPERTY( QPalette palette READ palette WRITE setPalette RESET unsetPalette STORED ownPalette ) Q_PROPERTY( BackgroundOrigin backgroundOrigin READ backgroundOrigin WRITE setBackgroundOrigin ) Q_PROPERTY( bool ownPalette READ ownPalette ) Q_PROPERTY( QFont font READ font WRITE setFont RESET unsetFont STORED ownFont ) Q_PROPERTY( bool ownFont READ ownFont ) #ifndef QT_NO_CURSOR Q_PROPERTY( QCursor cursor READ cursor WRITE setCursor RESET unsetCursor STORED ownCursor ) Q_PROPERTY( bool ownCursor READ ownCursor ) #endif #ifndef QT_NO_WIDGET_TOPEXTRA Q_PROPERTY( QString caption READ caption WRITE setCaption ) Q_PROPERTY( QPixmap icon READ icon WRITE setIcon ) Q_PROPERTY( QString iconText READ iconText WRITE setIconText ) #endif Q_PROPERTY( bool mouseTracking READ hasMouseTracking WRITE setMouseTracking ) Q_PROPERTY( bool underMouse READ hasMouse ) 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 DESIGNABLE false SCRIPTABLE false ) 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 * ); QStyle* setStyle( const QString& ); #endif // Widget types and states bool isTopLevel() const; bool isDialog() const; bool isPopup() const; bool isDesktop() const; bool isModal() const; bool isEnabled() const; bool isEnabledTo(QWidget*) const; bool isEnabledToTLW() const; public slots: virtual void setEnabled( bool ); void setDisabled( bool ); // Widget coordinates public: 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 BackgroundMode backgroundMode() const; virtual void setBackgroundMode( BackgroundMode ); void setBackgroundMode( BackgroundMode, BackgroundMode ); const QColor & foregroundColor() const; const QColor & eraseColor() const; virtual void setEraseColor( const QColor & ); const QPixmap * erasePixmap() const; virtual void setErasePixmap( 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 const QColor & paletteForegroundColor() const; void setPaletteForegroundColor( const QColor & ); const QColor & paletteBackgroundColor() const; virtual void setPaletteBackgroundColor( const QColor & ); const QPixmap * paletteBackgroundPixmap() const; virtual void setPaletteBackgroundPixmap( const QPixmap & ); const QBrush& backgroundBrush() const; QFont font() const; bool ownFont() const; virtual void setFont( const QFont & ); void unsetFont(); QFontMetrics fontMetrics() const; QFontInfo fontInfo() const; #ifndef QT_NO_CURSOR const QCursor &cursor() const; bool ownCursor() const; virtual void setCursor( const QCursor & ); virtual void unsetCursor(); #endif #ifndef QT_NO_WIDGET_TOPEXTRA QString caption() const; const QPixmap *icon() const; QString iconText() const; #endif bool hasMouseTracking() const; bool hasMouse() const; virtual void setMask( const QBitmap & ); virtual void setMask( const QRegion & ); void clearMask(); const QColor & backgroundColor() const; // obsolete, use eraseColor() virtual void setBackgroundColor( const QColor & ); // obsolete, use setEraseColor() const QPixmap * backgroundPixmap() const; // obsolete, use erasePixmap() virtual void setBackgroundPixmap( const QPixmap & ); // obsolete, use setErasePixmap() public slots: #ifndef QT_NO_WIDGET_TOPEXTRA virtual void setCaption( const QString &); virtual void setIcon( const QPixmap & ); virtual void setIconText( const QString &); #endif virtual void setMouseTracking( bool enable ); // Keyboard input focus functions virtual void setFocus(); void clearFocus(); public: enum FocusPolicy { NoFocus = 0, TabFocus = 0x1, ClickFocus = 0x2, StrongFocus = 0x3, WheelFocus = 0x7 }; bool isActiveWindow() const; virtual void setActiveWindow(); bool isFocusEnabled() const; FocusPolicy focusPolicy() const; virtual void setFocusPolicy( FocusPolicy ); bool hasFocus() const; static void setTabOrder( QWidget *, QWidget * ); virtual void setFocusProxy( QWidget * ); QWidget * focusProxy() const; // Grab functions void grabMouse(); #ifndef QT_NO_CURSOR void grabMouse( const QCursor & ); #endif void releaseMouse(); void grabKeyboard(); void releaseKeyboard(); static QWidget * mouseGrabber(); static QWidget * keyboardGrabber(); // Update/refresh functions bool isUpdatesEnabled() const; #if 0 //def Q_WS_QWS void repaintUnclipped( const QRegion &, bool erase = TRUE ); #endif public slots: virtual void setUpdatesEnabled( bool enable ); void update(); void update( int x, int y, int w, int h ); void update( const QRect& ); void repaint(); void repaint( bool erase ); void repaint( int x, int y, int w, int h, bool erase=TRUE ); void repaint( const QRect &, bool erase = TRUE ); void repaint( const QRegion &, bool erase = TRUE ); // Widget management functions virtual void show(); virtual void hide(); #ifndef QT_NO_COMPAT void iconify() { showMinimized(); } #endif virtual void showMinimized(); virtual void showMaximized(); void showFullScreen(); // virtual 3.0 virtual void showNormal(); virtual void polish(); void constPolish() const; bool close(); void raise(); void lower(); void stackUnder( QWidget* ); virtual void move( int x, int y ); void move( const QPoint & ); virtual void resize( int w, int h ); void resize( const QSize & ); virtual void setGeometry( int x, int y, int w, int h ); virtual void setGeometry( const QRect & ); public: virtual bool close( bool alsoDelete ); bool isVisible() const; bool isVisibleTo(QWidget*) const; bool isVisibleToTLW() const; // obsolete QRect visibleRect() const; bool isHidden() const; bool isMinimized() const; bool isMaximized() const; virtual QSize sizeHint() const; virtual QSize minimumSizeHint() const; virtual QSizePolicy sizePolicy() const; virtual void setSizePolicy( QSizePolicy ); virtual int heightForWidth(int) const; virtual void adjustSize(); #ifndef QT_NO_LAYOUT QLayout * layout() const { return lay_out; } #endif void updateGeometry(); virtual void reparent( QWidget *parent, WFlags, const QPoint &, bool showIt=FALSE ); void reparent( QWidget *parent, const QPoint &, bool showIt=FALSE ); #ifndef QT_NO_COMPAT void recreate( QWidget *parent, WFlags f, const QPoint & p, bool showIt=FALSE ) { reparent(parent,f,p,showIt); } #endif void erase(); void erase( int x, int y, int w, int h ); void erase( const QRect & ); void erase( const QRegion & ); void scroll( int dx, int dy ); void scroll( int dx, int dy, const QRect& ); void drawText( int x, int y, const QString &); void drawText( const QPoint &, const QString &); // Misc. functions QWidget * focusWidget() const; QRect microFocusHint() const; // drag and drop bool acceptDrops() const; virtual void setAcceptDrops( bool on ); // transparency and pseudo transparency virtual void setAutoMask(bool); bool autoMask() const; enum BackgroundOrigin { WidgetOrigin, ParentOrigin, WindowOrigin }; virtual void setBackgroundOrigin( BackgroundOrigin ); BackgroundOrigin backgroundOrigin() const; // whats this help virtual bool customWhatsThis() const; QWidget * parentWidget( bool sameWindow = FALSE ) const; WState testWState( WState s ) const; WFlags testWFlags( WFlags f ) const; static QWidget * find( WId ); static QWidgetMapper *wmapper(); QWidget *childAt( int x, int y, bool includeThis = FALSE ) const; QWidget *childAt( const QPoint &, bool includeThis = FALSE ) const; #if defined(Q_WS_QWS) virtual QGfx * graphicsContext(bool clip_children=TRUE) const; #endif #if defined(Q_WS_MAC) QRegion clippedRegion(bool do_children=TRUE); uint clippedSerial(bool do_children=TRUE); #ifndef QMAC_NO_QUARTZ CGContextRef macCGContext(bool clipped=TRUE) const; #endif #endif protected: // Event handlers bool event( QEvent * ); virtual void mousePressEvent( QMouseEvent * ); virtual void mouseReleaseEvent( QMouseEvent * ); virtual void mouseDoubleClickEvent( QMouseEvent * ); virtual void mouseMoveEvent( QMouseEvent * ); #ifndef QT_NO_WHEELEVENT virtual void wheelEvent( QWheelEvent * ); #endif virtual void keyPressEvent( QKeyEvent * ); virtual void keyReleaseEvent( QKeyEvent * ); virtual void focusInEvent( QFocusEvent * ); virtual void focusOutEvent( QFocusEvent * ); virtual void enterEvent( QEvent * ); virtual void leaveEvent( QEvent * ); virtual void paintEvent( QPaintEvent * ); virtual void moveEvent( QMoveEvent * ); virtual void resizeEvent( QResizeEvent * ); virtual void closeEvent( QCloseEvent * ); virtual void contextMenuEvent( QContextMenuEvent * ); virtual void imStartEvent( QIMEvent * ); virtual void imComposeEvent( QIMEvent * ); virtual void imEndEvent( QIMEvent * ); virtual void tabletEvent( QTabletEvent * ); #ifndef QT_NO_DRAGANDDROP virtual void dragEnterEvent( QDragEnterEvent * ); virtual void dragMoveEvent( QDragMoveEvent * ); virtual void dragLeaveEvent( QDragLeaveEvent * ); virtual void dropEvent( QDropEvent * ); #endif virtual void showEvent( QShowEvent * ); virtual void hideEvent( QHideEvent * ); #if defined(Q_WS_MAC) virtual bool macEvent( MSG * ); #endif #if defined(Q_WS_WIN) virtual bool winEvent( MSG * ); #endif #if defined(Q_WS_X11) virtual bool x11Event( XEvent * ); #endif #if defined(Q_WS_QWS) virtual bool qwsEvent( QWSEvent * ); virtual unsigned char *scanLine( int ) const; virtual int bytesPerLine() const; #endif virtual void updateMask(); // Misc. protected functions #ifndef QT_NO_STYLE virtual void styleChange( QStyle& ); #endif virtual void enabledChange( bool oldEnabled ); #ifndef QT_NO_PALETTE virtual void paletteChange( const QPalette & ); #endif virtual void fontChange( const QFont & ); virtual void windowActivationChange( bool oldActive ); int metric( int ) const; void resetInputContext(); virtual void create( WId = 0, bool initializeWindow = TRUE, bool destroyOldWindow = TRUE ); virtual void destroy( bool destroyWindow = TRUE, bool destroySubWindows = TRUE ); uint getWState() const; virtual void setWState( uint ); void clearWState( uint n ); WFlags getWFlags() const; virtual void setWFlags( WFlags ); void clearWFlags( WFlags n ); virtual bool focusNextPrevChild( bool next ); QWExtra *extraData(); QTLWExtra *topData(); QFocusData *focusData(); virtual void setKeyCompression(bool); virtual void setMicroFocusHint(int x, int y, int w, int h, bool text=TRUE, QFont *f = 0); #if defined(Q_WS_MAC) void dirtyClippedRegion(bool); bool isClippedRegionDirty(); #endif private slots: void focusProxyDestroyed(); private: void setFontSys( QFont *f = 0 ); #if defined(Q_WS_X11) void createInputContext(); void destroyInputContext(); void focusInputContext(); void checkChildrenDnd(); #elif defined(Q_WS_MAC) uint own_id : 1, macDropEnabled : 1; EventHandlerRef window_event; //mac event functions void propagateUpdates(); void update( const QRegion& ); //friends, way too many - fix this immediatly! friend void qt_clean_root_win(); friend bool qt_recreate_root_win(); friend QPoint posInWindow(QWidget *); friend QWidget *qt_recursive_match(QWidget *widg, int x, int y); friend void qt_paint_children(QWidget *,QRegion &, uchar ops); friend void qt_event_request_updates(QWidget *, QRegion &); friend bool qt_window_rgn(WId, short, RgnHandle, bool); friend class QDragManager; #endif #ifndef QT_NO_LAYOUT void setLayout( QLayout *l ); #endif void setWinId( WId ); void showWindow(); void hideWindow(); void sendShowEventsToChildren( bool spontaneous ); void sendHideEventsToChildren( bool spontaneous ); void reparentSys( QWidget *parent, WFlags, const QPoint &, bool showIt); void createTLExtra(); void createExtra(); void deleteExtra(); void createSysExtra(); void deleteSysExtra(); void createTLSysExtra(); void deleteTLSysExtra(); void deactivateWidgetCleanup(); void internalSetGeometry( int, int, int, int, bool ); void reparentFocusWidgets( QWidget * ); QFocusData *focusData( bool create ); void setBackgroundFromMode(); void setBackgroundColorDirect( const QColor & ); void setBackgroundPixmapDirect( const QPixmap & ); void setBackgroundModeDirect( BackgroundMode ); void setBackgroundEmpty(); void updateFrameStrut() const; #if defined(Q_WS_X11) void setBackgroundX11Relative(); #endif WId winid; uint widget_state; uint widget_flags; uint focus_policy : 4; uint own_font :1; uint own_palette :1; uint sizehint_forced :1; uint is_closing :1; uint in_show : 1; uint in_show_maximized : 1; uint fstrut_dirty : 1; QRect crect; QColor bg_col; #ifndef QT_NO_PALETTE QPalette pal; #endif QFont fnt; #ifndef QT_NO_LAYOUT QLayout *lay_out; #endif QWExtra *extra; #if defined(Q_WS_QWS) QRegion req_region; // Requested region mutable QRegion paintable_region; // Paintable region mutable bool paintable_region_dirty;// needs to be recalculated mutable QRegion alloc_region; // Allocated region mutable bool alloc_region_dirty; // needs to be recalculated mutable int overlapping_children; // Handle overlapping children int alloc_region_index; int alloc_region_revision; void updateOverlappingChildren() const; void setChildrenAllocatedDirty(); bool isAllocatedRegionDirty() const; QRegion requestedRegion() const; QRegion allocatedRegion() const; QRegion paintableRegion() const; // used to accumulate dirty region when children moved/resized. QRegion dirtyChildren; bool isSettingGeometry; friend class QWSManager; #endif static void createMapper(); static void destroyMapper(); static QWidgetList *wList(); static QWidgetList *tlwList(); static QWidgetMapper *mapper; friend class QApplication; friend class QBaseApplication; friend class QPainter; friend class QFontMetrics; friend class QFontInfo; friend class QETWidget; friend class QLayout; private: // Disabled copy constructor and operator= #if defined(Q_DISABLE_COPY) QWidget( const QWidget & ); QWidget &operator=( const QWidget & ); #endif public: // obsolete functions to dissappear or to become inline in 3.0 #ifndef QT_NO_PALETTE void setPalette( const QPalette &p, bool ) { setPalette( p ); } #endif void setFont( const QFont &f, bool ) { setFont( f ); } }; inline Qt::WState QWidget::testWState( WState s ) const { return (widget_state & s); } inline Qt::WFlags QWidget::testWFlags( WFlags f ) const { return (widget_flags & f); } inline WId QWidget::winId() const { return winid; } inline bool QWidget::isTopLevel() const { return testWFlags(WType_TopLevel); } inline bool QWidget::isDialog() const { return testWFlags(WType_Dialog); } inline bool QWidget::isPopup() const { return testWFlags(WType_Popup); } inline bool QWidget::isDesktop() const { return testWFlags(WType_Desktop); } inline bool QWidget::isEnabled() const { return !testWState(WState_Disabled); } inline bool QWidget::isModal() const { return testWFlags(WShowModal); } inline bool QWidget::isEnabledToTLW() const { return isEnabled(); } inline const QRect &QWidget::geometry() const { return crect; } inline QSize QWidget::size() const { return crect.size(); } inline int QWidget::width() const { return crect.width(); } inline int QWidget::height() const { return crect.height(); } inline QRect QWidget::rect() const { return QRect(0,0,crect.width(),crect.height()); } inline int QWidget::minimumWidth() const { return minimumSize().width(); } inline int QWidget::minimumHeight() const { return minimumSize().height(); } inline int QWidget::maximumWidth() const { return maximumSize().width(); } inline int QWidget::maximumHeight() const { return maximumSize().height(); } inline void QWidget::setMinimumSize( const QSize &s ) { setMinimumSize(s.width(),s.height()); } inline void QWidget::setMaximumSize( const QSize &s ) { setMaximumSize(s.width(),s.height()); } inline void QWidget::setSizeIncrement( const QSize &s ) { setSizeIncrement(s.width(),s.height()); } inline void QWidget::setBaseSize( const QSize &s ) { setBaseSize(s.width(),s.height()); } inline const QColor &QWidget::eraseColor() const { return bg_col; } #ifndef QT_NO_PALETTE inline const QPalette &QWidget::palette() const { return pal; } #endif inline QFont QWidget::font() const { return fnt; } inline QFontMetrics QWidget::fontMetrics() const { return QFontMetrics(font()); } inline QFontInfo QWidget::fontInfo() const { return QFontInfo(font()); } inline bool QWidget::hasMouseTracking() const { return testWState(WState_MouseTracking); } inline bool QWidget::hasMouse() const { return testWState(WState_HasMouse); } inline bool QWidget::isFocusEnabled() const { return (FocusPolicy)focus_policy != NoFocus; } inline QWidget::FocusPolicy QWidget::focusPolicy() const { return (FocusPolicy)focus_policy; } inline bool QWidget::isUpdatesEnabled() const { return !testWState(WState_BlockUpdates); } inline void QWidget::update( const QRect &r ) { update( r.x(), r.y(), r.width(), r.height() ); } inline void QWidget::repaint() { repaint( 0, 0, crect.width(), crect.height(), TRUE ); } inline void QWidget::repaint( bool erase ) { repaint( 0, 0, crect.width(), crect.height(), erase ); } inline void QWidget::repaint( const QRect &r, bool erase ) { repaint( r.x(), r.y(), r.width(), r.height(), erase ); } inline void QWidget::erase() { erase( 0, 0, crect.width(), crect.height() ); } inline void QWidget::erase( const QRect &r ) { erase( r.x(), r.y(), r.width(), r.height() ); } inline bool QWidget::close() { return close( FALSE ); } inline bool QWidget::isVisible() const { return testWState(WState_Visible); } inline bool QWidget::isVisibleToTLW() const // obsolete { return isVisible(); } inline bool QWidget::isHidden() const { return testWState(WState_ForceHide); } inline void QWidget::move( const QPoint &p ) { move( p.x(), p.y() ); } inline void QWidget::resize( const QSize &s ) { resize( s.width(), s.height()); } inline void QWidget::setGeometry( const QRect &r ) { setGeometry( r.left(), r.top(), r.width(), r.height() ); } inline void QWidget::drawText( const QPoint &p, const QString &s ) { drawText( p.x(), p.y(), s ); } inline QWidget *QWidget::parentWidget( bool sameWindow ) const { if ( sameWindow ) return isTopLevel() ? 0 : (QWidget *)QObject::parent(); return (QWidget *)QObject::parent(); } inline QWidgetMapper *QWidget::wmapper() { return mapper; } inline uint QWidget::getWState() const { return widget_state; } inline void QWidget::setWState( uint f ) { widget_state |= f; } inline void QWidget::clearWState( uint f ) { widget_state &= ~f; } inline Qt::WFlags QWidget::getWFlags() const { return widget_flags; } inline void QWidget::setWFlags( WFlags f ) { widget_flags |= f; } inline void QWidget::clearWFlags( WFlags f ) { widget_flags &= ~f; } inline void QWidget::constPolish() const { if ( !testWState(WState_Polished) ) { QWidget* that = (QWidget*) this; that->polish(); that->setWState(WState_Polished); // be on the safe side... } } #ifndef QT_NO_CURSOR inline bool QWidget::ownCursor() const { return testWState( WState_OwnCursor ); } #endif inline bool QWidget::ownFont() const { return own_font; } #ifndef QT_NO_PALETTE inline bool QWidget::ownPalette() const { return own_palette; } #endif // Extra QWidget data // - to minimize memory usage for members that are seldom used. // - top-level widgets have extra extra data to reduce cost further class QFocusData; class QWSManager; #if defined(Q_WS_WIN) class QOleDropTarget; #endif #if defined(Q_WS_MAC) class QMacDndExtra; #endif struct Q_EXPORT QTLWExtra { #ifndef QT_NO_WIDGET_TOPEXTRA QString caption; // widget caption QString iconText; // widget icon text QPixmap *icon; // widget icon #endif QFocusData *focusData; // focus data (for TLW) short incw, inch; // size increments // frame strut ulong fleft, fright, ftop, fbottom; uint iconic: 1; // iconified [cur. win32 only] uint fullscreen : 1; // full-screen mode uint showMode: 2; // 0 normal, 1 minimized, 2 maximized, 3 reset short basew, baseh; // base sizes #if defined(Q_WS_X11) WId parentWinId; // parent window Id (valid after reparenting) uint embedded : 1; // window is embedded in another Qt application uint reserved: 2; // reserved uint dnd : 1; // DND properties installed uint uspos : 1; // User defined position uint ussize : 1; // User defined size void *xic; // XIM Input Context #endif #if defined(Q_WS_MAC) WindowGroupRef group; #endif #if defined(Q_WS_QWS) && !defined ( QT_NO_QWS_MANAGER ) QRegion decor_allocated_region; // decoration allocated region QWSManager *qwsManager; #endif #if defined(Q_WS_WIN) HICON winIcon; // internal Windows icon #endif QRect normalGeometry; // used by showMin/maximized/FullScreen }; #define QWIDGETSIZE_MAX 32767 // dear user: you can see this struct, but it is internal. do not touch. struct Q_EXPORT QWExtra { Q_INT16 minw, minh; // minimum size Q_INT16 maxw, maxh; // maximum size QPixmap *bg_pix; // background pixmap QWidget *focus_proxy; #ifndef QT_NO_CURSOR QCursor *curs; #endif QTLWExtra *topextra; // only useful for TLWs #if defined(Q_WS_WIN) QOleDropTarget *dropTarget; // drop target #endif #if defined(Q_WS_X11) WId xDndProxy; // XDND forwarding to embedded windows #endif #if defined(Q_WS_MAC) QRegion clip_saved, clip_sibs, clip_children; QMacDndExtra *macDndExtra; QRegion dirty_area; uint clip_dirty : 1, clip_serial : 15; uint child_dirty : 1, child_serial : 15; #ifndef QMAC_NO_QUARTZ uint ctx_children_clipped:1; #endif uint has_dirty_area:1; #endif uint bg_origin : 2; #if defined(Q_WS_X11) uint children_use_dnd : 1; #endif #if defined(Q_WS_QWS) || defined(Q_WS_MAC) QRegion mask; // widget mask #endif char bg_mode; // background mode char bg_mode_visual; // visual background mode #ifndef QT_NO_STYLE QStyle* style; #endif QRect micro_focus_hint; // micro focus hint QSizePolicy size_policy; }; #endif // QWIDGET_H
| Copyright © 2002 Trolltech | Trademarks | 译者:Cavendish | Qt 3.0.5版
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