Inheritance diagram for QScrollBarPrivate:

Public Functions
void	activateControl (uint control, int threshold=500)

void	init ()

QStyle::SubControl	newHoverControl (const QPoint &pos)

int	pixelPosToRangeValue (int pos) const

void	stopRepeatAction ()

bool	updateHoverControl (const QPoint &pos)

Public Functions inherited from QAbstractSliderPrivate
virtual int	bound (int val) const

int	effectiveSingleStep () const

int	overflowSafeAdd (int add) const

	QAbstractSliderPrivate ()

bool	scrollByDelta (Qt::Orientation orientation, Qt::KeyboardModifiers modifiers, int delta)

void	setAdjustedSliderPosition (int position)

void	setSteps (int single, int page)

	~QAbstractSliderPrivate ()

Public Functions inherited from QWidgetPrivate
void	_q_showIfNotHidden ()

virtual void	aboutToDestroy ()

void	activateChildLayoutsRecursively ()

QSize	adjustedSize () const

void	adjustQuitOnCloseAttribute ()

QInputContext *	assignedInputContext () const

QPainter *	beginSharedPainter ()

QWidget *	childAt_helper (const QPoint &, bool) const

QWidget *	childAtRecursiveHelper (const QPoint &p, bool, bool includeFrame=false) const

QRect	clipRect () const

QRegion	clipRegion () const

void	clipToEffectiveMask (QRegion &region) const

bool	close_helper (CloseMode mode)

void	create_sys (WId window, bool initializeWindow, bool destroyOldWindow)

QWindowSurface *	createDefaultWindowSurface ()

QWindowSurface *	createDefaultWindowSurface_sys ()

void	createExtra ()
	Creates the widget extra data. More...

void	createRecursively ()

void	createSysExtra ()

void	createTLExtra ()

void	createTLSysExtra ()

void	createWinId (WId id=0)

void	deactivateWidgetCleanup ()

void	deleteExtra ()
	Deletes the widget extra data. More...

void	deleteSysExtra ()

void	deleteTLSysExtra ()

void	drawWidget (QPaintDevice pdev, const QRegion &rgn, const QPoint &offset, int flags, QPainter sharedPainter=0, QWidgetBackingStore *backingStore=0)

QWidget *	effectiveFocusWidget ()

QRect	effectiveRectFor (const QRect &rect) const

bool	endSharedPainter ()

void	enforceNativeChildren ()

QWExtra *	extraData () const

QRect	frameStrut () const

void	getLayoutItemMargins (int left, int top, int right, int bottom) const

const QRegion &	getOpaqueChildren () const

void	handleSoftwareInputPanel (Qt::MouseButton button, bool clickCausedFocus)

virtual bool	hasHeightForWidth () const

void	hide_helper ()

void	hide_sys ()
	Platform-specific part of QWidget::hide(). More...

void	hideChildren (bool spontaneous)

void	inheritStyle ()

void	init (QWidget *desktopWidget, Qt::WindowFlags f)

QInputContext *	inputContext () const

void	invalidateBuffer (const QRegion &)
	Invalidates the rgn (in widget's coordinates) of the backing store, i.e. More...

void	invalidateBuffer (const QRect &)
	This function is equivalent to calling invalidateBuffer(QRegion(rect), ...), but is more efficient as it eliminates QRegion operations/allocations and can use the rect more precisely for additional cut-offs. More...

void	invalidateBuffer_resizeHelper (const QPoint &oldPos, const QSize &oldSize)
	Invalidates the buffer when the widget is resized. More...

void	invalidateGraphicsEffectsRecursively ()

bool	isAboutToShow () const

bool	isBackgroundInherited () const

bool	isOverlapped (const QRect &) const

void	lower_sys ()

QPoint	mapFromGlobal (const QPoint &pos) const

QPoint	mapToGlobal (const QPoint &pos) const

QWidgetBackingStore *	maybeBackingStore () const

QTLWExtra *	maybeTopData () const

void	moveRect (const QRect &, int dx, int dy)

bool	nativeChildrenForced () const

QFont	naturalWidgetFont (uint inheritedMask) const

QPalette	naturalWidgetPalette (uint inheritedMask) const
	Returns the palette that the widget w inherits from its ancestors and QApplication::palette. More...

void	paintBackground (QPainter *, const QRegion &, int flags=DrawAsRoot) const

bool	paintOnScreen () const

void	paintSiblingsRecursive (QPaintDevice pdev, const QObjectList &children, int index, const QRegion &rgn, const QPoint &offset, int flags, QPainter sharedPainter, QWidgetBackingStore *backingStore)

bool	pointInsideRectAndMask (const QPoint &) const

QRegion	prepareToRender (const QRegion &region, QWidget::RenderFlags renderFlags)

void	propagatePaletteChange ()
	Propagate this widget's palette to all children, except style sheet widgets, and windows that don't enable window propagation (palettes don't normally propagate to windows). More...

	QWidgetPrivate (int version=QObjectPrivateVersion)

void	raise_sys ()

QPaintDevice *	redirected (QPoint *offset) const

void	registerDropSite (bool)

void	render (QPaintDevice *target, const QPoint &targetOffset, const QRegion &sourceRegion, QWidget::RenderFlags renderFlags, bool readyToRender)

void	render_helper (QPainter *painter, const QPoint &targetOffset, const QRegion &sourceRegion, QWidget::RenderFlags renderFlags)

void	repaint_sys (const QRegion &rgn)

void	reparentFocusWidgets (QWidget *oldtlw)

void	resolveFont ()
	Determine which font is implicitly imposed on this widget by its ancestors and QApplication::font, resolve this against its own font (attributes from the implicit font are copied over). More...

void	resolveLayoutDirection ()

void	resolveLocale ()

void	resolvePalette ()
	Determine which palette is inherited from this widget's ancestors and QApplication::palette, resolve this against this widget's palette (attributes from the inherited palette are copied over this widget's palette). More...

void	restoreRedirected ()

void	scroll_sys (int dx, int dy)

void	scroll_sys (int dx, int dy, const QRect &r)

void	scrollChildren (int dx, int dy)

void	scrollRect (const QRect &, int dx, int dy)

void	sendPendingMoveAndResizeEvents (bool recursive=false, bool disableUpdates=false)

void	sendStartupMessage (const char *message) const
	Platform-specific part of QWidget::show(). More...

void	setConstraints_sys ()

void	setCursor_sys (const QCursor &cursor)

void	setDirtyOpaqueRegion ()

void	setEnabled_helper (bool)

void	setFocus_sys ()

void	setFont_helper (const QFont &font)

void	setGeometry_sys (int, int, int, int, bool)

void	setLayoutDirection_helper (Qt::LayoutDirection)

void	setLayoutItemMargins (int left, int top, int right, int bottom)

void	setLayoutItemMargins (QStyle::SubElement element, const QStyleOption *opt=0)

void	setLocale_helper (const QLocale &l, bool forceUpdate=false)

void	setMask_sys (const QRegion &)

bool	setMaximumSize_helper (int &maxw, int &maxh)

bool	setMinimumSize_helper (int &minw, int &minh)

void	setModal_sys ()

void	setNetWmWindowTypes ()

void	setOpaque (bool opaque)

void	setPalette_helper (const QPalette &)

void	setParent_sys (QWidget *parent, Qt::WindowFlags)

void	setRedirected (QPaintDevice *replacement, const QPoint &offset)

void	setSharedPainter (QPainter *painter)

void	setStyle_helper (QStyle *newStyle, bool propagate, bool metalHack=false)

void	setUpdatesEnabled_helper (bool)

void	setWindowFilePath_helper (const QString &filePath)

void	setWindowIcon_helper ()

void	setWindowIcon_sys (bool forceReset=false)

void	setWindowIconText_helper (const QString &cap)

void	setWindowIconText_sys (const QString &cap)

void	setWindowOpacity_sys (qreal opacity)

void	setWindowRole ()

void	setWindowTitle_helper (const QString &cap)

void	setWindowTitle_sys (const QString &cap)

void	setWinId (WId)

QPainter *	sharedPainter () const

void	show_helper ()

void	show_recursive ()
	Makes the widget visible in the isVisible() meaning of the word. More...

void	show_sys ()
	Platform-specific part of QWidget::show(). More...

void	showChildren (bool spontaneous)

void	stackUnder_sys (QWidget *)

void	subtractOpaqueChildren (QRegion &rgn, const QRect &clipRect) const

void	subtractOpaqueSiblings (QRegion &source, bool *hasDirtySiblingsAbove=0, bool alsoNonOpaque=false) const

void	syncBackingStore ()

void	syncBackingStore (const QRegion &region)

QTLWExtra *	topData () const

void	unsetCursor_sys ()

void	updateFont (const QFont &)
	Assign font to this widget, and propagate it to all children, except style sheet widgets (handled differently) and windows that don't enable window propagation. More...

void	updateFrameStrut ()
	Computes the frame rectangle when needed. More...

void	updateGeometry_helper (bool forceUpdate)

void	updateIsOpaque ()

void	updateIsTranslucent ()

void	updateSystemBackground ()

void	updateX11AcceptFocus ()

void	x11UpdateIsOpaque ()

	~QWidgetPrivate ()

Public Functions inherited from QObjectPrivate
void	_q_reregisterTimers (void *pointer)

void	addConnection (int signal, Connection *c)

void	cleanConnectionLists ()

void	connectNotify (const char *signal)

void	deleteChildren ()

void	disconnectNotify (const char *signal)

bool	isSender (const QObject receiver, const char signal) const

bool	isSignalConnected (uint signalIdx) const
	Returns true if the signal with index signal_index from object sender is connected. More...

void	moveToThread_helper ()

	QObjectPrivate (int version=QObjectPrivateVersion)

QObjectList	receiverList (const char *signal) const

QObjectList	senderList () const

void	setParent_helper (QObject *)

void	setThreadData_helper (QThreadData currentData, QThreadData targetData)

int	signalIndex (const char *signalName) const
	Returns the signal index used in the internal connectionLists vector. More...

virtual	~QObjectPrivate ()

Public Functions inherited from QObjectData
virtual	~QObjectData ()=0

Public Variables
int	clickOffset

QStyle::SubControl	hoverControl

QRect	hoverRect

bool	pointerOutsidePressedControl

QStyle::SubControl	pressedControl

int	snapBackPosition

Public Variables inherited from QAbstractSliderPrivate
uint	blocktracking:1

uint	invertedAppearance: 1

uint	invertedControls: 1

int	maximum

int	minimum

float	offset_accumulated

Qt::Orientation	orientation

int	pageStep

int	position

uint	pressed: 1

int	pressValue

QAbstractSlider::SliderAction	repeatAction

int	repeatActionTime

QBasicTimer	repeatActionTimer

int	singleStep

uint	tracking: 1

int	value

Public Variables inherited from QWidgetPrivate
QString	accessibleDescription

QString	accessibleName

QList< QAction * >	actions

QPalette::ColorRole	bg_role: 8

signed char	bottomLayoutItemMargin

short	bottommargin

QWidgetData	data

QRegion	dirty

uint	dirtyOpaqueChildren: 1

QWExtra *	extra

QPaintEngine *	extraPaintEngine

QPalette::ColorRole	fg_role: 8

QWidget *	focus_child

QWidget *	focus_next

QWidget *	focus_prev

QMap< Qt::GestureType, Qt::GestureFlags >	gestureContext

QGraphicsEffect *	graphicsEffect

Qt::HANDLE	hd

uint	high_attributes [4]

QPointer< QInputContext >	ic

Qt::InputMethodHints	imHints

uint	inDirtyList: 1

uint	inheritedFontResolveMask

uint	inheritedPaletteResolveMask

uint	inheritsInputMethodHints: 1

uint	inSetParent: 1

uint	isGLWidget: 1

uint	isMoved: 1

uint	isOpaque: 1

uint	isScrolled: 1

QLayout *	layout

signed char	leftLayoutItemMargin

short	leftmargin

QLocale	locale

QRegion *	needsFlush

QRegion	opaqueChildren

Qt::HANDLE	picture

const QMetaObject *	polished

QPaintDevice *	redirectDev

QPoint	redirectOffset

signed char	rightLayoutItemMargin

short	rightmargin

QSizePolicy	size_policy

QString	statusTip

QString	toolTip

signed char	topLayoutItemMargin

short	topmargin

uint	usesDoubleBufferedGLContext: 1

QString	whatsThis

QWidgetItemV2 *	widgetItem

QX11Info	xinfo

Public Variables inherited from QObjectPrivate
union {
QObject * currentChildBeingDeleted

QAbstractDeclarativeData * declarativeData

};

quint32	connectedSignals [2]

QObjectConnectionListVector *	connectionLists

Sender *	currentSender

QList< QPointer< QObject > >	eventFilters

ExtraData *	extraData

QString	objectName

Connection *	senders

QAtomicPointer< QtSharedPointer::ExternalRefCountData >	sharedRefcount

QThreadData *	threadData

void *	unused

Public Variables inherited from QObjectData
uint	blockSig: 1

QObjectList	children

uint	hasGuards: 1

uint	inEventHandler: 1

uint	inThreadChangeEvent: 1

uint	isWidget: 1

QMetaObject *	metaObject

uint	ownObjectName: 1

QObject *	parent

uint	pendTimer: 1

int	postedEvents

QObject *	q_ptr

uint	receiveChildEvents: 1

uint	sendChildEvents: 1

uint	unused: 22

uint	wasDeleted: 1

Additional Inherited Members
Public Types inherited from QWidgetPrivate
enum	CloseMode { CloseNoEvent, CloseWithEvent, CloseWithSpontaneousEvent }

enum	Direction { DirectionNorth = 0x01, DirectionEast = 0x10, DirectionSouth = 0x02, DirectionWest = 0x20 }

enum	DrawWidgetFlags { DrawAsRoot = 0x01, DrawPaintOnScreen = 0x02, DrawRecursive = 0x04, DrawInvisible = 0x08, DontSubtractOpaqueChildren = 0x10, DontSetCompositionMode = 0x20, DontDrawOpaqueChildren = 0x40, DontDrawNativeChildren = 0x80 }

Public Types inherited from QObjectPrivate
typedef void(*	StaticMetaCallFunction) (QObject , QMetaObject::Call, int, void *)

Static Public Functions inherited from QWidgetPrivate
static void	adjustFlags (Qt::WindowFlags &flags, QWidget *w=0)

static QGraphicsProxyWidget *	nearestGraphicsProxyWidget (const QWidget *origin)
	Finds the nearest widget embedded in a graphics proxy widget along the chain formed by this widget and its ancestors. More...

static int	pointToRect (const QPoint &p, const QRect &r)

static QRect	screenGeometry (const QWidget *widget)

Static Public Functions inherited from QObjectPrivate
static void	clearGuards (QObject *)

static QObjectPrivate *	get (QObject *o)

static void	resetCurrentSender (QObject receiver, Sender currentSender, Sender *previousSender)

static Sender *	setCurrentSender (QObject receiver, Sender sender)

static void	signalSignature (const QMetaMethod &signal, QVarLengthArray< char > *result)

Static Public Variables inherited from QWidgetPrivate
static QWidgetSet *	allWidgets = 0

static int	instanceCounter = 0

static QWidget *	keyboardGrabber = 0

static QWidgetMapper *	mapper = 0

static int	maxInstances = 0

static QWidget *	mouseGrabber = 0

Detailed Description

Definition at line 206 of file qscrollbar.cpp.

Functions

◆ activateControl()

void QScrollBarPrivate::activateControl	(	uint	control,
		int	threshold = `500`
	)

Definition at line 254 of file qscrollbar.cpp.

 {
     QAbstractSlider::SliderAction action = QAbstractSlider::SliderNoAction;
     switch (control) {
     case QStyle::SC_ScrollBarAddPage:
         action = QAbstractSlider::SliderPageStepAdd;
         break;
     case QStyle::SC_ScrollBarSubPage:
         action = QAbstractSlider::SliderPageStepSub;
         break;
     case QStyle::SC_ScrollBarAddLine:
         action = QAbstractSlider::SliderSingleStepAdd;
         break;
     case QStyle::SC_ScrollBarSubLine:
         action = QAbstractSlider::SliderSingleStepSub;
         break;
     case QStyle::SC_ScrollBarFirst:
         action = QAbstractSlider::SliderToMinimum;
         break;
     case QStyle::SC_ScrollBarLast:
         action = QAbstractSlider::SliderToMaximum;
         break;
     default:
         break;
     }
 
     if (action) {
         q_func()->setRepeatAction(action, threshold);
         q_func()->triggerAction(action);
     }
 }

◆ init()

void QScrollBarPrivate::init ( )

Definition at line 423 of file qscrollbar.cpp.

 {
     Q_Q(QScrollBar);
     invertedControls = true;
     pressedControl = hoverControl = QStyle::SC_None;
     pointerOutsidePressedControl = false;
     q->setFocusPolicy(Qt::NoFocus);
     QSizePolicy sp(QSizePolicy::Minimum, QSizePolicy::Fixed, QSizePolicy::Slider);
     if (orientation == Qt::Vertical)
         sp.transpose();
     q->setSizePolicy(sp);
     q->setAttribute(Qt::WA_WState_OwnSizePolicy, false);
     q->setAttribute(Qt::WA_OpaquePaintEvent);
 
 #if !defined(QT_NO_CONTEXTMENU) && defined(Q_WS_WINCE)
     if (!q->style()->styleHint(QStyle::SH_ScrollBar_ContextMenu, 0, q)) {
         q->setContextMenuPolicy(Qt::PreventContextMenu);
     }
 #endif
 }

◆ newHoverControl()

QStyle::SubControl QScrollBarPrivate::newHoverControl ( const QPoint & pos )

Definition at line 240 of file qscrollbar.cpp.

Referenced by updateHoverControl().

 {
     Q_Q(QScrollBar);
     QStyleOptionSlider opt;
     q->initStyleOption(&opt);
     opt.subControls = QStyle::SC_All;
     hoverControl = q->style()->hitTestComplexControl(QStyle::CC_ScrollBar, &opt, pos, q);
     if (hoverControl == QStyle::SC_None)
         hoverRect = QRect();
     else
         hoverRect = q->style()->subControlRect(QStyle::CC_ScrollBar, &opt, hoverControl, q);
     return hoverControl;
 }

◆ pixelPosToRangeValue()

int QScrollBarPrivate::pixelPosToRangeValue ( int pos ) const

Definition at line 713 of file qscrollbar.cpp.

 {
     Q_Q(const QScrollBar);
     QStyleOptionSlider opt;
     q->initStyleOption(&opt);
     QRect gr = q->style()->subControlRect(QStyle::CC_ScrollBar, &opt,
                                           QStyle::SC_ScrollBarGroove, q);
     QRect sr = q->style()->subControlRect(QStyle::CC_ScrollBar, &opt,
                                           QStyle::SC_ScrollBarSlider, q);
     int sliderMin, sliderMax, sliderLength;
 
     if (orientation == Qt::Horizontal) {
         sliderLength = sr.width();
         sliderMin = gr.x();
         sliderMax = gr.right() - sliderLength + 1;
         if (q->layoutDirection() == Qt::RightToLeft)
             opt.upsideDown = !opt.upsideDown;
     } else {
         sliderLength = sr.height();
         sliderMin = gr.y();
         sliderMax = gr.bottom() - sliderLength + 1;
     }
 
     return  QStyle::sliderValueFromPosition(minimum, maximum, pos - sliderMin,
                                             sliderMax - sliderMin, opt.upsideDown);
 }

◆ stopRepeatAction()

void QScrollBarPrivate::stopRepeatAction ( )

Definition at line 286 of file qscrollbar.cpp.

 {
     Q_Q(QScrollBar);
     QStyle::SubControl tmp = pressedControl;
     q->setRepeatAction(QAbstractSlider::SliderNoAction);
     pressedControl = QStyle::SC_None;
 
     if (tmp == QStyle::SC_ScrollBarSlider)
         q->setSliderDown(false);
 
     QStyleOptionSlider opt;
     q->initStyleOption(&opt);
     q->repaint(q->style()->subControlRect(QStyle::CC_ScrollBar, &opt, tmp, q));
 }

◆ updateHoverControl()

bool QScrollBarPrivate::updateHoverControl ( const QPoint & pos )

Definition at line 226 of file qscrollbar.cpp.

 {
     Q_Q(QScrollBar);
     QRect lastHoverRect = hoverRect;
     QStyle::SubControl lastHoverControl = hoverControl;
     bool doesHover = q->testAttribute(Qt::WA_Hover);
     if (lastHoverControl != newHoverControl(pos) && doesHover) {
         q->update(lastHoverRect);
         q->update(hoverRect);
         return true;
     }
     return !doesHover;
 }

Properties

◆ clickOffset

int QScrollBarPrivate::clickOffset

Definition at line 213 of file qscrollbar.cpp.

◆ hoverControl

QStyle::SubControl QScrollBarPrivate::hoverControl

Definition at line 222 of file qscrollbar.cpp.

Referenced by newHoverControl(), and updateHoverControl().

◆ hoverRect

QRect QScrollBarPrivate::hoverRect

Definition at line 223 of file qscrollbar.cpp.

Referenced by newHoverControl(), and updateHoverControl().

◆ pointerOutsidePressedControl

bool QScrollBarPrivate::pointerOutsidePressedControl

Definition at line 211 of file qscrollbar.cpp.

◆ pressedControl

QStyle::SubControl QScrollBarPrivate::pressedControl

Definition at line 210 of file qscrollbar.cpp.

Referenced by stopRepeatAction().

◆ snapBackPosition

int QScrollBarPrivate::snapBackPosition