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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>qwidget.h</h1>
<p>This is the verbatim text of the qwidget.h include file. It is provided only for illustration; the copyright remains with Trolltech.
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/****************************************************************************
** $Id: qt/qwidget.h 3.3.8 edited Jan 11 14:38 $
**
** Definition of QWidget class
**
** Created : 931029
**
** Copyright (C) 1992-2007 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 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 ) // obsolete
Q_PROPERTY( bool hidden READ isHidden WRITE setHidden DESIGNABLE false SCRIPTABLE false )
Q_PROPERTY( bool shown READ isShown WRITE setShown DESIGNABLE false SCRIPTABLE false )
Q_PROPERTY( bool minimized READ isMinimized )
Q_PROPERTY( bool maximized READ isMaximized )
Q_PROPERTY( bool fullScreen READ isFullScreen )
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 )
Q_PROPERTY( bool inputMethodEnabled READ isInputMethodEnabled WRITE setInputMethodEnabled DESIGNABLE false SCRIPTABLE false )
Q_PROPERTY( double windowOpacity READ windowOpacity WRITE setWindowOpacity DESIGNABLE false )
public:
Q_EXPLICIT 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 &amp;style() const;
void setStyle( QStyle * );
QStyle* setStyle( const QString&amp; );
#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 &amp;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 &amp; );
virtual void setMinimumSize( int minw, int minh );
void setMaximumSize( const QSize &amp; );
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 &amp; );
virtual void setSizeIncrement( int w, int h );
QSize baseSize() const;
void setBaseSize( const QSize &amp; );
void setBaseSize( int basew, int baseh );
void setFixedSize( const QSize &amp; );
void setFixedSize( int w, int h );
void setFixedWidth( int w );
void setFixedHeight( int h );
// Widget coordinate mapping
QPoint mapToGlobal( const QPoint &amp; ) const;
QPoint mapFromGlobal( const QPoint &amp; ) const;
QPoint mapToParent( const QPoint &amp; ) const;
QPoint mapFromParent( const QPoint &amp; ) const;
QPoint mapTo( QWidget *, const QPoint &amp; ) const;
QPoint mapFrom( QWidget *, const QPoint &amp; ) const;
QWidget *topLevelWidget() const;
// Widget attribute functions
BackgroundMode backgroundMode() const;
virtual void setBackgroundMode( BackgroundMode );
void setBackgroundMode( BackgroundMode, BackgroundMode );
const QColor &amp; foregroundColor() const;
const QColor &amp; eraseColor() const;
virtual void setEraseColor( const QColor &amp; );
const QPixmap * erasePixmap() const;
virtual void setErasePixmap( const QPixmap &amp; );
#ifndef QT_NO_PALETTE
const QColorGroup &amp; colorGroup() const;
const QPalette &amp; palette() const;
bool ownPalette() const;
virtual void setPalette( const QPalette &amp; );
void unsetPalette();
#endif
const QColor &amp; paletteForegroundColor() const;
void setPaletteForegroundColor( const QColor &amp; );
const QColor &amp; paletteBackgroundColor() const;
virtual void setPaletteBackgroundColor( const QColor &amp; );
const QPixmap * paletteBackgroundPixmap() const;
virtual void setPaletteBackgroundPixmap( const QPixmap &amp; );
const QBrush&amp; backgroundBrush() const;
QFont font() const;
bool ownFont() const;
virtual void setFont( const QFont &amp; );
void unsetFont();
QFontMetrics fontMetrics() const;
QFontInfo fontInfo() const;
#ifndef QT_NO_CURSOR
const QCursor &amp;cursor() const;
bool ownCursor() const;
virtual void setCursor( const QCursor &amp; );
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 &amp; );
virtual void setMask( const QRegion &amp; );
void clearMask();
const QColor &amp; backgroundColor() const; // obsolete, use eraseColor()
virtual void setBackgroundColor( const QColor &amp; ); // obsolete, use setEraseColor()
const QPixmap * backgroundPixmap() const; // obsolete, use erasePixmap()
virtual void setBackgroundPixmap( const QPixmap &amp; ); // obsolete, use setErasePixmap()
public slots:
#ifndef QT_NO_WIDGET_TOPEXTRA
virtual void setCaption( const QString &amp;);
virtual void setIcon( const QPixmap &amp; );
virtual void setIconText( const QString &amp;);
#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 = TabFocus | ClickFocus | 0x8,
WheelFocus = StrongFocus | 0x4
};
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;
void setInputMethodEnabled( bool b );
bool isInputMethodEnabled() const;
// Grab functions
void grabMouse();
#ifndef QT_NO_CURSOR
void grabMouse( const QCursor &amp; );
#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 &amp;, 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&amp; );
void repaint();
void repaint( bool erase );
void repaint( int x, int y, int w, int h, bool erase=TRUE );
void repaint( const QRect &amp;, bool erase = TRUE );
void repaint( const QRegion &amp;, bool erase = TRUE );
// Widget management functions
virtual void show();
virtual void hide();
void setShown( bool show );
void setHidden( bool hide );
#ifndef QT_NO_COMPAT
void iconify() { showMinimized(); }
#endif
virtual void showMinimized();
virtual void showMaximized();
void showFullScreen();
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 &amp; );
virtual void resize( int w, int h );
void resize( const QSize &amp; );
virtual void setGeometry( int x, int y, int w, int h );
virtual void setGeometry( const QRect &amp; ); // ### make non virtual in Qt 4?
public:
virtual bool close( bool alsoDelete );
bool isVisible() const;
bool isVisibleTo(QWidget*) const;
bool isVisibleToTLW() const; // obsolete
QRect visibleRect() const; // obsolete
bool isHidden() const;
bool isShown() const;
bool isMinimized() const;
bool isMaximized() const;
bool isFullScreen() const;
uint windowState() const;
void setWindowState(uint windowState);
virtual QSize sizeHint() const;
virtual QSize minimumSizeHint() const;
virtual QSizePolicy sizePolicy() const;
virtual void setSizePolicy( QSizePolicy );
void setSizePolicy( QSizePolicy::SizeType hor, QSizePolicy::SizeType ver, bool hfw = FALSE );
virtual int heightForWidth(int) const;
QRegion clipRegion() const;
// ### move together with other slots in Qt 4.0
public slots:
virtual void adjustSize();
public:
#ifndef QT_NO_LAYOUT
QLayout * layout() const { return lay_out; }
#endif
void updateGeometry();
virtual void reparent( QWidget *parent, WFlags, const QPoint &amp;,
bool showIt=FALSE );
void reparent( QWidget *parent, const QPoint &amp;,
bool showIt=FALSE );
#ifndef QT_NO_COMPAT
void recreate( QWidget *parent, WFlags f, const QPoint &amp; 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 &amp; );
void erase( const QRegion &amp; );
void scroll( int dx, int dy );
void scroll( int dx, int dy, const QRect&amp; );
void drawText( int x, int y, const QString &amp;);
void drawText( const QPoint &amp;, const QString &amp;);
// 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, AncestorOrigin };
virtual void setBackgroundOrigin( BackgroundOrigin );
BackgroundOrigin backgroundOrigin() const;
QPoint backgroundOffset() 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 &amp;, 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
void setWindowOpacity(double level);
double windowOpacity() const;
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&amp; );
#endif
virtual void enabledChange( bool oldEnabled );
#ifndef QT_NO_PALETTE
virtual void paletteChange( const QPalette &amp; );
#endif
virtual void fontChange( const QFont &amp; );
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();
virtual void setRegionDirty(bool);
virtual void macWidgetChangedWindow();
#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(bool update_rgn=TRUE);
void update( const QRegion&amp; );
//friends, way too many - fix this immediately!
friend void qt_clean_root_win();
friend bool qt_recreate_root_win();
friend QPoint posInWindow(QWidget *);
friend bool qt_mac_update_sizer(QWidget *, int);
friend QWidget *qt_recursive_match(QWidget *widg, int x, int y);
friend bool qt_paint_children(QWidget *,QRegion &amp;, uchar ops);
friend QMAC_PASCAL OSStatus qt_window_event(EventHandlerCallRef er, EventRef event, void *);
friend void qt_event_request_updates(QWidget *, const QRegion &amp;, bool subtract);
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 showChildren( bool spontaneous );
void hideChildren( bool spontaneous );
void reparentSys( QWidget *parent, WFlags, const QPoint &amp;, 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 &amp; );
void setBackgroundPixmapDirect( const QPixmap &amp; );
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;
uint im_enabled : 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();
void setChildrenAllocatedDirty( const QRegion &amp;r, const QWidget *dirty=0 );
bool isAllocatedRegionDirty() const;
void updateRequestedRegion( const QPoint &amp;gpos );
QRegion requestedRegion() const;
QRegion allocatedRegion() const;
QRegion paintableRegion() const;
void updateGraphicsContext( QGfx *qgfx_qws, bool clip_children ) const;
#ifndef QT_NO_CURSOR
void updateCursor( const QRegion &amp;r ) const;
#endif
// used to accumulate dirty region when children moved/resized.
QRegion dirtyChildren;
bool isSettingGeometry;
friend class QWSManager;
#endif
static int instanceCounter; // Current number of widget instances
static int maxInstances; // Maximum number of widget instances
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 &amp; );
QWidget &amp;operator=( const QWidget &amp; );
#endif
public: // obsolete functions to dissappear or to become inline in 3.0
#ifndef QT_NO_PALETTE
void setPalette( const QPalette &amp;p, bool ) { setPalette( p ); }
#endif
void setFont( const QFont &amp;f, bool ) { setFont( f ); }
};
inline Qt::WState QWidget::testWState( WState s ) const
{ return (widget_state &amp; s); }
inline Qt::WFlags QWidget::testWFlags( WFlags f ) const
{ return (widget_flags &amp; 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 &amp;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 &amp;s )
{ setMinimumSize(s.width(),s.height()); }
inline void QWidget::setMaximumSize( const QSize &amp;s )
{ setMaximumSize(s.width(),s.height()); }
inline void QWidget::setSizeIncrement( const QSize &amp;s )
{ setSizeIncrement(s.width(),s.height()); }
inline void QWidget::setBaseSize( const QSize &amp;s )
{ setBaseSize(s.width(),s.height()); }
inline const QColor &amp;QWidget::eraseColor() const
{ return bg_col; }
#ifndef QT_NO_PALETTE
inline const QPalette &amp;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 &amp;r )
{ update( r.x(), r.y(), r.width(), r.height() ); }
inline void QWidget::repaint()
{ repaint( TRUE ); }
inline void QWidget::repaint( const QRect &amp;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 &amp;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 bool QWidget::isShown() const
{ return !testWState(WState_ForceHide); }
inline void QWidget::move( const QPoint &amp;p )
{ move( p.x(), p.y() ); }
inline void QWidget::resize( const QSize &amp;s )
{ resize( s.width(), s.height()); }
inline void QWidget::setGeometry( const QRect &amp;r )
{ setGeometry( r.left(), r.top(), r.width(), r.height() ); }
inline void QWidget::drawText( const QPoint &amp;p, const QString &amp;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 &amp;= ~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 &amp;= ~f; }
inline void QWidget::constPolish() const
{
if ( !testWState(WState_Polished) ) {
QWidget* that = (QWidget*) this;
that-&gt;polish();
that-&gt;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
inline void QWidget::setSizePolicy( QSizePolicy::SizeType hor, QSizePolicy::SizeType ver, bool hfw )
{
setSizePolicy( QSizePolicy( hor, ver, hfw) );
}
inline bool QWidget::isInputMethodEnabled() const
{
return (bool)im_enabled;
}
// 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 unused : 8; // not used at this point...
#if defined( Q_WS_WIN ) || defined( Q_WS_MAC )
uint opacity : 8; // Stores opacity level on Windows/Mac OS X.
#endif
uint savedFlags; // Save widgetflags while showing fullscreen
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 spont_unmapped: 1; // window was spontaneously unmapped
uint reserved: 1; // 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;
uint is_moved: 1;
uint resizer : 4;
#endif
#if defined(Q_WS_QWS) &amp;&amp; !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
#ifdef Q_WS_WIN
uint style, exstyle;
#endif
};
#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 // QMAC_NO_QUARTZ
uint has_dirty_area:1;
#endif // Q_WS_MAC
uint bg_origin : 2;
#if defined(Q_WS_X11)
uint children_use_dnd : 1;
uint compress_events : 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;
};
#define Q_DEFINED_QWIDGET
#include "qwinexport.h"
#endif // QWIDGET_H
</pre>
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