ntqwidget.h Include File

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# ntqwidget.h

This is the verbatim text of the ntqwidget.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    ** $Id: qt/ntqwidget.h   3.3.8   edited Jan 11 14:38 $
    **
    ** Definition of TQWidget class
    **
    ** Created : 931029
    **
    ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of the kernel module of the TQt 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 TQt 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.TQPL
    ** included in the packaging of this file.  Licensees holding valid TQt
    ** Commercial licenses may use this file in accordance with the TQt
    ** 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 TQWIDGET_H
    #define TQWIDGET_H

    #ifndef QT_H
    #include "ntqwindowdefs.h"
    #include "ntqobject.h"
    #include "ntqpaintdevice.h"
    #include "ntqpalette.h"
    #include "ntqfont.h"
    #include "ntqfontmetrics.h"
    #include "ntqfontinfo.h"
    #include "ntqsizepolicy.h"
    #endif // QT_H

    class TQLayout;
    struct TQWExtra;
    struct TQTLWExtra;
    class TQFocusData;
    class TQCursor;
    class TQWSRegionManager;
    class TQStyle;

    class TQ_EXPORT TQWidget : public TQObject, public TQPaintDevice
    {
        TQ_OBJECT
        TQ_ENUMS( BackgroundMode FocusPolicy BackgroundOrigin )
        TQ_PROPERTY( bool isTopLevel READ isTopLevel )
        TQ_PROPERTY( bool isDialog READ isDialog )
        TQ_PROPERTY( bool isModal READ isModal )
        TQ_PROPERTY( bool isPopup READ isPopup )
        TQ_PROPERTY( bool isDesktop READ isDesktop )
        TQ_PROPERTY( bool enabled READ isEnabled WRITE setEnabled )
        TQ_PROPERTY( TQRect geometry READ geometry WRITE setGeometry )
        TQ_PROPERTY( TQRect frameGeometry READ frameGeometry )
        TQ_PROPERTY( int x READ x )
        TQ_PROPERTY( int y READ y )
        TQ_PROPERTY( TQPoint pos READ pos WRITE move DESIGNABLE false STORED false )
        TQ_PROPERTY( TQSize frameSize READ frameSize )
        TQ_PROPERTY( TQSize size READ size WRITE resize DESIGNABLE false STORED false )
        TQ_PROPERTY( int width READ width )
        TQ_PROPERTY( int height READ height )
        TQ_PROPERTY( TQRect rect READ rect )
        TQ_PROPERTY( TQRect childrenRect READ childrenRect )
        TQ_PROPERTY( TQRegion childrenRegion READ childrenRegion )
        TQ_PROPERTY( TQSizePolicy sizePolicy READ sizePolicy WRITE setSizePolicy )
        TQ_PROPERTY( TQSize minimumSize READ minimumSize WRITE setMinimumSize )
        TQ_PROPERTY( TQSize maximumSize READ maximumSize WRITE setMaximumSize )
        TQ_PROPERTY( int minimumWidth READ minimumWidth WRITE setMinimumWidth STORED false DESIGNABLE false )
        TQ_PROPERTY( int minimumHeight READ minimumHeight WRITE setMinimumHeight STORED false DESIGNABLE false )
        TQ_PROPERTY( int maximumWidth READ maximumWidth WRITE setMaximumWidth STORED false DESIGNABLE false )
        TQ_PROPERTY( int maximumHeight READ maximumHeight WRITE setMaximumHeight STORED false DESIGNABLE false )
        TQ_PROPERTY( TQSize sizeIncrement READ sizeIncrement WRITE setSizeIncrement )
        TQ_PROPERTY( TQSize baseSize READ baseSize WRITE setBaseSize )
        TQ_PROPERTY( BackgroundMode backgroundMode READ backgroundMode WRITE setBackgroundMode DESIGNABLE false )
        TQ_PROPERTY( TQColor paletteForegroundColor READ paletteForegroundColor WRITE setPaletteForegroundColor RESET unsetPalette )
        TQ_PROPERTY( TQColor paletteBackgroundColor READ paletteBackgroundColor WRITE setPaletteBackgroundColor RESET unsetPalette )
        TQ_PROPERTY( TQPixmap paletteBackgroundPixmap READ paletteBackgroundPixmap WRITE setPaletteBackgroundPixmap RESET unsetPalette )
        TQ_PROPERTY( TQBrush backgroundBrush READ backgroundBrush )
        TQ_PROPERTY( TQColorGroup colorGroup READ colorGroup )
        TQ_PROPERTY( TQPalette palette READ palette WRITE setPalette RESET unsetPalette  STORED ownPalette )
        TQ_PROPERTY( BackgroundOrigin backgroundOrigin READ backgroundOrigin WRITE setBackgroundOrigin )
        TQ_PROPERTY( bool ownPalette READ ownPalette )
        TQ_PROPERTY( TQFont font READ font WRITE setFont RESET unsetFont STORED ownFont )
        TQ_PROPERTY( bool ownFont READ ownFont )
    #ifndef TQT_NO_CURSOR
        TQ_PROPERTY( TQCursor cursor READ cursor WRITE setCursor RESET unsetCursor STORED ownCursor )
        TQ_PROPERTY( bool ownCursor READ ownCursor )
    #endif
    #ifndef TQT_NO_WIDGET_TOPEXTRA
        TQ_PROPERTY( TQString caption READ caption WRITE setCaption )
        TQ_PROPERTY( TQPixmap icon READ icon WRITE setIcon )
        TQ_PROPERTY( TQString iconText READ iconText WRITE setIconText )
    #endif
        TQ_PROPERTY( bool mouseTracking READ hasMouseTracking WRITE setMouseTracking )
        TQ_PROPERTY( bool underMouse READ hasMouse )
        TQ_PROPERTY( bool isActiveWindow READ isActiveWindow )
        TQ_PROPERTY( bool focusEnabled READ isFocusEnabled )
        TQ_PROPERTY( FocusPolicy focusPolicy READ focusPolicy WRITE setFocusPolicy )
        TQ_PROPERTY( bool focus READ hasFocus )
        TQ_PROPERTY( bool updatesEnabled READ isUpdatesEnabled WRITE setUpdatesEnabled DESIGNABLE false )
        TQ_PROPERTY( bool visible READ isVisible )
        TQ_PROPERTY( TQRect visibleRect READ visibleRect ) // obsolete
        TQ_PROPERTY( bool hidden READ isHidden WRITE setHidden DESIGNABLE false SCRIPTABLE false )
        TQ_PROPERTY( bool shown READ isShown WRITE setShown DESIGNABLE false SCRIPTABLE false )
        TQ_PROPERTY( bool minimized READ isMinimized )
        TQ_PROPERTY( bool maximized READ isMaximized )
        TQ_PROPERTY( bool fullScreen READ isFullScreen )
        TQ_PROPERTY( TQSize sizeHint READ sizeHint )
        TQ_PROPERTY( TQSize minimumSizeHint READ minimumSizeHint )
        TQ_PROPERTY( TQRect microFocusHint READ microFocusHint )
        TQ_PROPERTY( bool acceptDrops READ acceptDrops WRITE setAcceptDrops )
        TQ_PROPERTY( bool autoMask READ autoMask WRITE setAutoMask DESIGNABLE false SCRIPTABLE false )
        TQ_PROPERTY( bool customWhatsThis READ customWhatsThis )
        TQ_PROPERTY( bool inputMethodEnabled READ isInputMethodEnabled WRITE setInputMethodEnabled DESIGNABLE false SCRIPTABLE false )
        TQ_PROPERTY( double windowOpacity READ windowOpacity WRITE setWindowOpacity DESIGNABLE false )

    public:
        explicit TQWidget( TQWidget* parent=0, const char* name=0, WFlags f=0 );
        ~TQWidget();

        WId		 winId() const;
        void	 setName( const char *name );
    #ifndef TQT_NO_STYLE
        // GUI style setting

        TQStyle     &style() const;
        void        setStyle( TQStyle * );
        TQStyle*	setStyle( const TQString& );
    #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(TQWidget*) const;
        bool	 isEnabledToTLW() const;

    public slots:
        virtual void setEnabled( bool );
        void setDisabled( bool );

        // Widget coordinates

    public:
        TQRect	 frameGeometry() const;
        const TQRect &geometry()	const;
        int		 x()		const;
        int		 y()		const;
        TQPoint	 pos()		const;
        TQSize	 frameSize()    const;
        TQSize	 size()		const;
        int		 width()	const;
        int		 height()	const;
        TQRect	 rect()		const;
        TQRect	 childrenRect() const;
        TQRegion	 childrenRegion() const;

        TQSize	 minimumSize()	 const;
        TQSize	 maximumSize()	 const;
        int		 minimumWidth()	 const;
        int		 minimumHeight() const;
        int		 maximumWidth()	 const;
        int		 maximumHeight() const;
        void	 setMinimumSize( const TQSize & );
        virtual void setMinimumSize( int minw, int minh );
        void	 setMaximumSize( const TQSize & );
        virtual void setMaximumSize( int maxw, int maxh );
        void	 setMinimumWidth( int minw );
        void	 setMinimumHeight( int minh );
        void	 setMaximumWidth( int maxw );
        void	 setMaximumHeight( int maxh );

        TQSize	 sizeIncrement() const;
        void	 setSizeIncrement( const TQSize & );
        virtual void setSizeIncrement( int w, int h );
        TQSize	 baseSize() const;
        void	 setBaseSize( const TQSize & );
        void	 setBaseSize( int basew, int baseh );

        void	setFixedSize( const TQSize & );
        void	setFixedSize( int w, int h );
        void	setFixedWidth( int w );
        void	setFixedHeight( int h );

        // Widget coordinate mapping

        TQPoint	 mapToGlobal( const TQPoint & )	 const;
        TQPoint	 mapFromGlobal( const TQPoint & ) const;
        TQPoint	 mapToParent( const TQPoint & )	 const;
        TQPoint	 mapFromParent( const TQPoint & ) const;
        TQPoint	 mapTo( TQWidget *, const TQPoint & ) const;
        TQPoint	 mapFrom( TQWidget *, const TQPoint & ) const;

        TQWidget	*topLevelWidget()   const;

        // Widget attribute functions

        BackgroundMode	backgroundMode() const;
        virtual void	setBackgroundMode( BackgroundMode );
        void 		setBackgroundMode( BackgroundMode, BackgroundMode );

        const TQColor &	foregroundColor() const;

        const TQColor &	eraseColor() const;
        virtual void	setEraseColor( const TQColor & );

        const TQPixmap *	erasePixmap() const;
        virtual void	setErasePixmap( const TQPixmap & );

    #ifndef TQT_NO_PALETTE
        const TQColorGroup & colorGroup() const;
        const TQPalette &	palette()    const;
        bool		ownPalette() const;
        virtual void	setPalette( const TQPalette & );
        void		unsetPalette();
    #endif

        const TQColor &	paletteForegroundColor() const;
        void		setPaletteForegroundColor( const TQColor & );

        const TQColor &	paletteBackgroundColor() const;
        virtual void	setPaletteBackgroundColor( const TQColor & );

        const TQPixmap *	paletteBackgroundPixmap() const;
        virtual void 	setPaletteBackgroundPixmap( const TQPixmap & );

        const TQBrush&	backgroundBrush() const;

        TQFont		font() const;
        bool		ownFont() const;
        virtual void	setFont( const TQFont & );
        void		unsetFont();
        TQFontMetrics	fontMetrics() const;
        TQFontInfo	 	fontInfo() const;

    #ifndef TQT_NO_CURSOR
        const TQCursor      &cursor() const;
        bool		ownCursor() const;
        virtual void	setCursor( const TQCursor & );
        virtual void	unsetCursor();
    #endif
    #ifndef TQT_NO_WIDGET_TOPEXTRA
        TQString		caption() const;
        const TQPixmap      *icon() const;
        TQString		iconText() const;
    #endif
        bool		hasMouseTracking() const;
        bool		hasMouse() const;

        virtual void	setMask( const TQBitmap & );
        virtual void	setMask( const TQRegion & );
        void		clearMask();

        const TQColor &	backgroundColor() const; // obsolete, use eraseColor()
        virtual void	setBackgroundColor( const TQColor & ); // obsolete, use setEraseColor()
        const TQPixmap *	backgroundPixmap() const; // obsolete, use erasePixmap()
        virtual void	setBackgroundPixmap( const TQPixmap & ); // obsolete, use setErasePixmap()

    public slots:
    #ifndef TQT_NO_WIDGET_TOPEXTRA
        virtual void	setCaption( const TQString &);
        virtual void	setIcon( const TQPixmap & );
        virtual void	setIconText( const TQString &);
    #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( TQWidget *, TQWidget * );
        virtual void	setFocusProxy( TQWidget * );
        TQWidget *		focusProxy() const;

        void setInputMethodEnabled( bool b );
        bool isInputMethodEnabled() const;
        // Grab functions

        void		grabMouse();
    #ifndef TQT_NO_CURSOR
        void		grabMouse( const TQCursor & );
    #endif
        void		releaseMouse();
        void		grabKeyboard();
        void		releaseKeyboard();
        static TQWidget *	mouseGrabber();
        static TQWidget *	keyboardGrabber();

        // Update/refresh functions

        bool	 	isUpdatesEnabled() const;

    #if 0 //def TQ_WS_QWS
        void		repaintUnclipped( const TQRegion &, 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 TQRect& );
        void		repaint();
        void		repaint( bool erase );
        void		repaint( int x, int y, int w, int h, bool erase=true );
        void		repaint( const TQRect &, bool erase = true );
        void		repaint( const TQRegion &, bool erase = true );

        // Widget management functions

        virtual void	show();
        virtual void	hide();
        void		setShown( bool show );
        void		setHidden( bool hide );
    #ifndef TQT_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( TQWidget* );
        virtual void	move( int x, int y );
        void		move( const TQPoint & );
        virtual void	resize( int w, int h );
        void		resize( const TQSize & );
        virtual void	setGeometry( int x, int y, int w, int h );
        virtual void	setGeometry( const TQRect & ); // ### make non virtual in TQt 4?

    public:
        virtual bool	close( bool alsoDelete );
        bool		isVisible()	const;
        bool		isVisibleTo(TQWidget*) const;
        bool		isVisibleToTLW() const; // obsolete
        TQRect		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 TQSize	sizeHint() const;
        virtual TQSize	minimumSizeHint() const;
        virtual TQSizePolicy	sizePolicy() const;
        virtual void	setSizePolicy( TQSizePolicy );
        void 		setSizePolicy( TQSizePolicy::SizeType hor, TQSizePolicy::SizeType ver, bool hfw = false );
        virtual int heightForWidth(int) const;

        TQRegion	clipRegion() const;

    // ### move together with other slots in TQt 4.0
    public slots:
        virtual void  	adjustSize();

    public:
    #ifndef TQT_NO_LAYOUT
        TQLayout *		layout() const { return lay_out; }
    #endif
        void		updateGeometry();
        virtual void 	reparent( TQWidget *parent, WFlags, const TQPoint &,
    				  bool showIt=false );
        void		reparent( TQWidget *parent, const TQPoint &,
    				  bool showIt=false );
    #ifndef TQT_NO_COMPAT
        void		recreate( TQWidget *parent, WFlags f, const TQPoint & 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 TQRect & );
        void		erase( const TQRegion & );
        void		scroll( int dx, int dy );
        void		scroll( int dx, int dy, const TQRect& );

        void		drawText( int x, int y, const TQString &);
        void		drawText( const TQPoint &, const TQString &);

        // Misc. functions

        TQWidget *		focusWidget() const;
        TQRect               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;
        TQPoint backgroundOffset() const;

        // whats this help
        virtual bool customWhatsThis() const;

        TQWidget *		parentWidget( bool sameWindow = false ) const;
        WState		testWState( WState s ) const;
        WFlags		testWFlags( WFlags f ) const;
        static TQWidget *	find( WId );
        static TQWidgetMapper *wmapper();

        TQWidget  *childAt( int x, int y, bool includeThis = false ) const;
        TQWidget  *childAt( const TQPoint &, bool includeThis = false ) const;

    #if defined(TQ_WS_QWS)
        virtual TQGfx * graphicsContext(bool clip_children=true) const;
    #endif
    #if defined(TQ_WS_MAC)
        TQRegion clippedRegion(bool do_children=true);
        uint clippedSerial(bool do_children=true);
    #ifndef TQMAC_NO_QUARTZ
        CGContextRef macCGContext(bool clipped=true) const;
    #endif
    #endif

        void setWindowOpacity(double level);
        double windowOpacity() const;

    protected:
        // Event handlers
        bool	 event( TQEvent * );
        virtual void mousePressEvent( TQMouseEvent * );
        virtual void mouseReleaseEvent( TQMouseEvent * );
        virtual void mouseDoubleClickEvent( TQMouseEvent * );
        virtual void mouseMoveEvent( TQMouseEvent * );
    #ifndef TQT_NO_WHEELEVENT
        virtual void wheelEvent( TQWheelEvent * );
    #endif
        virtual void keyPressEvent( TQKeyEvent * );
        virtual void keyReleaseEvent( TQKeyEvent * );
        virtual void focusInEvent( TQFocusEvent * );
        virtual void focusOutEvent( TQFocusEvent * );
        virtual void enterEvent( TQEvent * );
        virtual void leaveEvent( TQEvent * );
        virtual void paintEvent( TQPaintEvent * );
        virtual void moveEvent( TQMoveEvent * );
        virtual void resizeEvent( TQResizeEvent * );
        virtual void closeEvent( TQCloseEvent * );
        virtual void contextMenuEvent( TQContextMenuEvent * );
        virtual void imStartEvent( TQIMEvent * );
        virtual void imComposeEvent( TQIMEvent * );
        virtual void imEndEvent( TQIMEvent * );
        virtual void tabletEvent( TQTabletEvent * );

    #ifndef TQT_NO_DRAGANDDROP
        virtual void dragEnterEvent( TQDragEnterEvent * );
        virtual void dragMoveEvent( TQDragMoveEvent * );
        virtual void dragLeaveEvent( TQDragLeaveEvent * );
        virtual void dropEvent( TQDropEvent * );
    #endif

        virtual void showEvent( TQShowEvent * );
        virtual void hideEvent( TQHideEvent * );

    #if defined(TQ_WS_MAC)
        virtual bool macEvent( MSG * );
    #endif
    #if defined(TQ_WS_WIN)
        virtual bool winEvent( MSG * );
    #endif
    #if defined(TQ_WS_X11)
        virtual bool x11Event( XEvent * );
    #endif
    #if defined(TQ_WS_QWS)
        virtual bool qwsEvent( TQWSEvent * );
        virtual unsigned char *scanLine( int ) const;
        virtual int bytesPerLine() const;
    #endif

        virtual void updateMask();

        // Misc. protected functions

    #ifndef TQT_NO_STYLE
        virtual void styleChange( TQStyle& );
    #endif
        virtual void enabledChange( bool oldEnabled );
    #ifndef TQT_NO_PALETTE
        virtual void paletteChange( const TQPalette & );
    #endif
        virtual void fontChange( const TQFont & );
        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 );

        TQWExtra	*extraData();
        TQTLWExtra	*topData();
        TQFocusData	*focusData();

        virtual void setKeyCompression(bool);
        virtual void setMicroFocusHint(int x, int y, int w, int h, bool text=true, TQFont *f = 0);

    #if defined(TQ_WS_MAC)
        void dirtyClippedRegion(bool);
        bool isClippedRegionDirty();
        virtual void setRegionDirty(bool);
        virtual void macWidgetChangedWindow();
    #endif

    private slots:
        void	 focusProxyDestroyed();

    private:
        void	 setFontSys( TQFont *f = 0 );
    #if defined(TQ_WS_X11)
        void	 createInputContext();
        void	 destroyInputContext();
        void	 focusInputContext();
        void	 checkChildrenDnd();
    #elif defined(TQ_WS_MAC)
        uint    own_id : 1, macDropEnabled : 1;
        EventHandlerRef window_event;
        //mac event functions
        void    propagateUpdates(bool update_rgn=true);
        void    update( const TQRegion& );
        //friends, way too many - fix this immediately!
        friend void tqt_clean_root_win();
        friend bool tqt_recreate_root_win();
        friend TQPoint posInWindow(TQWidget *);
        friend bool tqt_mac_update_sizer(TQWidget *, int);
        friend TQWidget *tqt_recursive_match(TQWidget *widg, int x, int y);
        friend bool tqt_paint_children(TQWidget *,TQRegion &, uchar ops);
        friend TQMAC_PASCAL OSStatus tqt_window_event(EventHandlerCallRef er, EventRef event, void *);
        friend void tqt_event_request_updates(TQWidget *, const TQRegion &, bool subtract);
        friend bool tqt_window_rgn(WId, short, RgnHandle, bool);
        friend class TQDragManager;
    #endif

    #ifndef TQT_NO_LAYOUT
        void 	 setLayout( TQLayout *l );
    #endif
        void	 setWinId( WId );
        void	 showWindow();
        void	 hideWindow();
        void	 showChildren( bool spontaneous );
        void	 hideChildren( bool spontaneous );
        void	 reparentSys( TQWidget *parent, WFlags, const TQPoint &,  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( TQWidget * );
        TQFocusData	*focusData( bool create );
        void         setBackgroundFromMode();
        void         setBackgroundColorDirect( const TQColor & );
        void   	 setBackgroundPixmapDirect( const TQPixmap & );
        void         setBackgroundModeDirect( BackgroundMode );
        void         setBackgroundEmpty();
        void	 updateFrameStrut() const;
    #if defined(TQ_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;
        TQRect	 crect;
        TQColor	 bg_col;
    #ifndef TQT_NO_PALETTE
        TQPalette	 pal;
    #endif
        TQFont	 fnt;
    #ifndef TQT_NO_LAYOUT
        TQLayout 	*lay_out;
    #endif
        TQWExtra	*extra;
    #if defined(TQ_WS_QWS)
        TQRegion	 req_region;			// Requested region
        mutable TQRegion	 paintable_region;	// Paintable region
        mutable bool         paintable_region_dirty;// needs to be recalculated
        mutable TQRegion      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 TQRegion &r, const TQWidget *dirty=0 );
        bool isAllocatedRegionDirty() const;
        void updateRequestedRegion( const TQPoint &gpos );
        TQRegion requestedRegion() const;
        TQRegion allocatedRegion() const;
        TQRegion paintableRegion() const;

        void updateGraphicsContext( TQGfx *qgfx_qws, bool clip_children ) const;
    #ifndef TQT_NO_CURSOR
        void updateCursor( const TQRegion &r ) const;
    #endif

        // used to accumulate dirty region when children moved/resized.
        TQRegion dirtyChildren;
        bool isSettingGeometry;
        friend class TQWSManager;
    #endif
        static int instanceCounter;  // Current number of widget instances
        static int maxInstances;     // Maximum number of widget instances

        static void	 createMapper();
        static void	 destroyMapper();
        static TQWidgetList	 *wList();
        static TQWidgetList	 *tlwList();
        static TQWidgetMapper *mapper;
        friend class TQApplication;
        friend class TQBaseApplication;
        friend class TQPainter;
        friend class TQFontMetrics;
        friend class TQFontInfo;
        friend class TQETWidget;
        friend class TQLayout;

    private:	// Disabled copy constructor and operator=
    #if defined(TQ_DISABLE_COPY)
        TQWidget( const TQWidget & );
        TQWidget &operator=( const TQWidget & );
    #endif

    public: // obsolete functions to dissappear or to become inline in 3.0
    #ifndef TQT_NO_PALETTE
        void setPalette( const TQPalette &p, bool ) { setPalette( p ); }
    #endif
        void setFont( const TQFont &f, bool ) { setFont( f ); }
    };

    inline TQt::WState TQWidget::testWState( WState s ) const
    { return (widget_state & s); }

    inline TQt::WFlags TQWidget::testWFlags( WFlags f ) const
    { return (widget_flags & f); }

    inline WId TQWidget::winId() const
    { return winid; }

    inline bool TQWidget::isTopLevel() const
    { return testWFlags(WType_TopLevel); }

    inline bool TQWidget::isDialog() const
    { return testWFlags(WType_Dialog); }

    inline bool TQWidget::isPopup() const
    { return testWFlags(WType_Popup); }

    inline bool TQWidget::isDesktop() const
    { return testWFlags(WType_Desktop); }

    inline bool TQWidget::isEnabled() const
    { return !testWState(WState_Disabled); }

    inline bool TQWidget::isModal() const
    { return testWFlags(WShowModal); }

    inline bool TQWidget::isEnabledToTLW() const
    { return isEnabled(); }

    inline const TQRect &TQWidget::geometry() const
    { return crect; }

    inline TQSize TQWidget::size() const
    { return crect.size(); }

    inline int TQWidget::width() const
    { return crect.width(); }

    inline int TQWidget::height() const
    { return crect.height(); }

    inline TQRect TQWidget::rect() const
    { return TQRect(0,0,crect.width(),crect.height()); }

    inline int TQWidget::minimumWidth() const
    { return minimumSize().width(); }

    inline int TQWidget::minimumHeight() const
    { return minimumSize().height(); }

    inline int TQWidget::maximumWidth() const
    { return maximumSize().width(); }

    inline int TQWidget::maximumHeight() const
    { return maximumSize().height(); }

    inline void TQWidget::setMinimumSize( const TQSize &s )
    { setMinimumSize(s.width(),s.height()); }

    inline void TQWidget::setMaximumSize( const TQSize &s )
    { setMaximumSize(s.width(),s.height()); }

    inline void TQWidget::setSizeIncrement( const TQSize &s )
    { setSizeIncrement(s.width(),s.height()); }

    inline void TQWidget::setBaseSize( const TQSize &s )
    { setBaseSize(s.width(),s.height()); }

    inline const TQColor &TQWidget::eraseColor() const
    { return bg_col; }

    #ifndef TQT_NO_PALETTE
    inline const TQPalette &TQWidget::palette() const
    { return pal; }
    #endif

    inline TQFont TQWidget::font() const
    { return fnt; }

    inline TQFontMetrics TQWidget::fontMetrics() const
    { return TQFontMetrics(font()); }

    inline TQFontInfo TQWidget::fontInfo() const
    { return TQFontInfo(font()); }

    inline bool TQWidget::hasMouseTracking() const
    { return testWState(WState_MouseTracking); }

    inline bool TQWidget::hasMouse() const
    { return testWState(WState_HasMouse); }

    inline bool  TQWidget::isFocusEnabled() const
    { return (FocusPolicy)focus_policy != NoFocus; }

    inline TQWidget::FocusPolicy TQWidget::focusPolicy() const
    { return (FocusPolicy)focus_policy; }

    inline bool TQWidget::isUpdatesEnabled() const
    { return !testWState(WState_BlockUpdates); }

    inline void TQWidget::update( const TQRect &r )
    { update( r.x(), r.y(), r.width(), r.height() ); }

    inline void TQWidget::repaint()
    { repaint( true ); }

    inline void TQWidget::repaint( const TQRect &r, bool erase )
    { repaint( r.x(), r.y(), r.width(), r.height(), erase ); }

    inline void TQWidget::erase()
    { erase( 0, 0, crect.width(), crect.height() ); }

    inline void TQWidget::erase( const TQRect &r )
    { erase( r.x(), r.y(), r.width(), r.height() ); }

    inline bool TQWidget::close()
    { return close( false ); }

    inline bool TQWidget::isVisible() const
    { return testWState(WState_Visible); }

    inline bool TQWidget::isVisibleToTLW() const // obsolete
    { return isVisible(); }

    inline bool TQWidget::isHidden() const
    { return testWState(WState_ForceHide); }

    inline bool TQWidget::isShown() const
    { return !testWState(WState_ForceHide); }

    inline void TQWidget::move( const TQPoint &p )
    { move( p.x(), p.y() ); }

    inline void TQWidget::resize( const TQSize &s )
    { resize( s.width(), s.height()); }

    inline void TQWidget::setGeometry( const TQRect &r )
    { setGeometry( r.left(), r.top(), r.width(), r.height() ); }

    inline void TQWidget::drawText( const TQPoint &p, const TQString &s )
    { drawText( p.x(), p.y(), s ); }

    inline TQWidget *TQWidget::parentWidget( bool sameWindow ) const
    {
        if ( sameWindow )
    	return isTopLevel() ? 0 : (TQWidget *)TQObject::parent();
        return (TQWidget *)TQObject::parent();
    }

    inline TQWidgetMapper *TQWidget::wmapper()
    { return mapper; }

    inline uint TQWidget::getWState() const
    { return widget_state; }

    inline void TQWidget::setWState( uint f )
    { widget_state |= f; }

    inline void TQWidget::clearWState( uint f )
    { widget_state &= ~f; }

    inline TQt::WFlags TQWidget::getWFlags() const
    { return widget_flags; }

    inline void TQWidget::setWFlags( WFlags f )
    { widget_flags |= f; }

    inline void TQWidget::clearWFlags( WFlags f )
    { widget_flags &= ~f; }

    inline void TQWidget::constPolish() const
    {
        if ( !testWState(WState_Polished) ) {
    	TQWidget* that = (TQWidget*) this;
    	that->polish();
            that->setWState(WState_Polished); // be on the safe side...
        }
    }
    #ifndef TQT_NO_CURSOR
    inline bool TQWidget::ownCursor() const
    {
        return testWState( WState_OwnCursor );
    }
    #endif
    inline bool TQWidget::ownFont() const
    {
        return own_font;
    }
    #ifndef TQT_NO_PALETTE
    inline bool TQWidget::ownPalette() const
    {
        return own_palette;
    }
    #endif

    inline void TQWidget::setSizePolicy( TQSizePolicy::SizeType hor, TQSizePolicy::SizeType ver, bool hfw )
    {
        setSizePolicy( TQSizePolicy( hor, ver, hfw) );
    }

    inline bool TQWidget::isInputMethodEnabled() const
    {
        return (bool)im_enabled;
    }

    // Extra TQWidget data
    //  - to minimize memory usage for members that are seldom used.
    //  - top-level widgets have extra extra data to reduce cost further

    class TQFocusData;
    class TQWSManager;
    #if defined(TQ_WS_WIN)
    class TQOleDropTarget;
    #endif
    #if defined(TQ_WS_MAC)
    class TQMacDndExtra;
    #endif

    struct TQ_EXPORT TQTLWExtra {
    #ifndef TQT_NO_WIDGET_TOPEXTRA
        TQString  caption;				// widget caption
        TQString  iconText;				// widget icon text
        TQPixmap *icon;				// widget icon
    #endif
        TQFocusData *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( TQ_WS_WIN ) || defined( TQ_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(TQ_WS_X11)
        WId  parentWinId;				// parent window Id (valid after reparenting)
        uint     embedded : 1;			// window is embedded in another TQt 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(TQ_WS_MAC)
        WindowGroupRef group;
        uint     is_moved: 1;
        uint     resizer : 4;
    #endif
    #if defined(TQ_WS_QWS) && !defined ( TQT_NO_QWS_MANAGER )
        TQRegion decor_allocated_region;		// decoration allocated region
        TQWSManager *qwsManager;
    #endif
    #if defined(TQ_WS_WIN)
        HICON    winIcon;				// internal Windows icon
    #endif
        TQRect    normalGeometry;			// used by showMin/maximized/FullScreen
    #ifdef TQ_WS_WIN
        uint style, exstyle;
    #endif
    };

    #define TQWIDGETSIZE_MAX 32767

    // dear user: you can see this struct, but it is internal. do not touch.

    struct TQ_EXPORT TQWExtra {
        TQ_INT16  minw, minh;			// minimum size
        TQ_INT16  maxw, maxh;			// maximum size
        TQPixmap *bg_pix;				// background pixmap
        TQWidget *focus_proxy;
    #ifndef TQT_NO_CURSOR
        TQCursor *curs;
    #endif
        TQTLWExtra *topextra;			// only useful for TLWs
    #if defined(TQ_WS_WIN)
        TQOleDropTarget *dropTarget;			// drop target
    #endif
    #if defined(TQ_WS_X11)
        WId xDndProxy;				// XDND forwarding to embedded windows
    #endif
    #if defined(TQ_WS_MAC)
        TQRegion clip_saved, clip_sibs, clip_children;
        TQMacDndExtra *macDndExtra;
        TQRegion dirty_area;
        uint clip_dirty : 1, clip_serial : 15;
        uint child_dirty : 1, child_serial : 15;
    #ifndef TQMAC_NO_QUARTZ
        uint ctx_children_clipped:1;
    #endif // TQMAC_NO_QUARTZ
        uint has_dirty_area:1;
    #endif // TQ_WS_MAC
        uint bg_origin : 2;
    #if defined(TQ_WS_X11)
        uint children_use_dnd : 1;
        uint compress_events : 1;
    #endif
    #if defined(TQ_WS_QWS) || defined(TQ_WS_MAC)
        TQRegion mask;				// widget mask
    #endif
        char     bg_mode;				// background mode
        char     bg_mode_visual;			// visual background mode
    #ifndef TQT_NO_STYLE
        TQStyle* style;
    #endif
        TQRect micro_focus_hint;			// micro focus hint
        TQSizePolicy size_policy;
    };

    #define Q_DEFINED_QWIDGET
    #include "ntqwinexport.h"

    #endif // TQWIDGET_H