#include <qsplitter_p.h>

Inheritance diagram for QSplitterPrivate:

Public Functions
void	addContribution (int, int , int , bool) const

int	adjustPos (int, int, int , int , int , int ) const

bool	collapsible (QSplitterLayoutStruct *) const

bool	collapsible (int index) const

void	doMove (bool backwards, int pos, int index, int delta, bool mayCollapse, int positions, int widths)

void	doResize ()

QSplitterLayoutStruct *	findWidget (QWidget *) const

int	findWidgetJustBeforeOrJustAfter (int index, int delta, int &collapsibleSize) const

void	getRange (int index, int , int , int , int ) const

void	init ()

QSplitterLayoutStruct *	insertWidget (int index, QWidget *)

void	insertWidget_helper (int index, QWidget *widget, bool show)

int	pick (const QPoint &pos) const

int	pick (const QSize &s) const

	QSplitterPrivate ()

void	recalc (bool update=false)

void	setGeo (QSplitterLayoutStruct *s, int pos, int size, bool allowCollapse)

void	setSizes_helper (const QList< int > &sizes, bool clampNegativeSize=false)

void	storeSizes ()

int	trans (const QPoint &pos) const

int	trans (const QSize &s) const

void	updateHandles ()

Public Functions inherited from QFramePrivate
void	init ()

	QFramePrivate ()

void	updateFrameWidth ()
	Updated the frameWidth parameter. More...

void	updateStyledFrameWidths ()
	Updates the frame widths from the style. More...

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
bool	blockChildAdd

bool	childrenCollapsible: 8

bool	compatMode: 8

bool	firstShow: 8

int	handleWidth

QList< QSplitterLayoutStruct * >	list

bool	opaque: 8

Qt::Orientation	orient

QPointer< QRubberBand >	rubberBand

Public Variables inherited from QFramePrivate
short	bottomFrameWidth

int	frameStyle

short	frameWidth

QRect	frect

short	leftFrameWidth

short	lineWidth

short	midLineWidth

short	rightFrameWidth

short	topFrameWidth

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 81 of file qsplitter_p.h.

Constructors and Destructors

◆ QSplitterPrivate()

QSplitterPrivate::QSplitterPrivate ( )

inline

Definition at line 85 of file qsplitter_p.h.

85 : rubberBand(0), opaque(true), firstShow(true),

86 childrenCollapsible(true), compatMode(false), handleWidth(0), blockChildAdd(false) {}

QSplitterPrivate::blockChildAdd

bool blockChildAdd

Definition: qsplitter_p.h:96

QSplitterPrivate::childrenCollapsible

bool childrenCollapsible

Definition: qsplitter_p.h:93

QSplitterPrivate::firstShow

bool firstShow

Definition: qsplitter_p.h:92

QSplitterPrivate::opaque

bool opaque

Definition: qsplitter_p.h:91

QSplitterPrivate::handleWidth

int handleWidth

Definition: qsplitter_p.h:95

QSplitterPrivate::rubberBand

QPointer< QRubberBand > rubberBand

Definition: qsplitter_p.h:88

QSplitterPrivate::compatMode

bool compatMode

Definition: qsplitter_p.h:94

Functions

◆ addContribution()

void QSplitterPrivate::addContribution	(	int	index,
		int *	min,
		int *	max,
		bool	mayCollapse
	)		const

Definition at line 564 of file qsplitter.cpp.

 {
     QSplitterLayoutStruct *s = list.at(index);
     if (!s->widget->isHidden()) {
         if (!s->handle->isHidden()) {
             *min += s->getHandleSize(orient);
             *max += s->getHandleSize(orient);
         }
         if (mayCollapse || !s->collapsed)
             *min += pick(qSmartMinSize(s->widget));
 
         *max += pick(s->widget->maximumSize());
     }
 }

◆ adjustPos()

int QSplitterPrivate::adjustPos	(	int	pos,
		int	index,
		int *	farMin,
		int *	min,
		int *	max,
		int *	farMax
	)		const

Definition at line 653 of file qsplitter.cpp.

 {
     const int Threshold = 40;
 
     getRange(index, farMin, min, max, farMax);
 
     if (pos >= *min) {
         if (pos <= *max) {
             return pos;
         } else {
             int delta = pos - *max;
             int width = *farMax - *max;
 
             if (delta > width / 2 && delta >= qMin(Threshold, width)) {
                 return *farMax;
             } else {
                 return *max;
             }
         }
     } else {
         int delta = *min - pos;
         int width = *min - *farMin;
 
         if (delta > width / 2 && delta >= qMin(Threshold, width)) {
             return *farMin;
         } else {
             return *min;
         }
     }
 }

◆ collapsible() [1/2]

bool QSplitterPrivate::collapsible ( QSplitterLayoutStruct * s ) const

Definition at line 684 of file qsplitter.cpp.

 {
     if (s->collapsible != Default) {
         return (bool)s->collapsible;
     } else {
         return childrenCollapsible;
     }
 }

◆ collapsible() [2/2]

bool QSplitterPrivate::collapsible ( int index ) const

inline

Definition at line 116 of file qsplitter_p.h.

117 { return (index < 0 || index >= list.size()) ? true : collapsible(list.at(index)); }

QSplitterPrivate::collapsible

bool collapsible(QSplitterLayoutStruct *) const

Definition: qsplitter.cpp:684

QList::at

const T & at(int i) const

Returns the item at index position i in the list.

Definition: qlist.h:468

QSplitterPrivate::list

QList< QSplitterLayoutStruct * > list

Definition: qsplitter_p.h:89

QList::size

int size() const

Returns the number of items in the list.

Definition: qlist.h:137

index

quint16 index

Definition: qfontsubset.cpp:116

◆ doMove()

void QSplitterPrivate::doMove	(	bool	backwards,
		int	pos,
		int	index,
		int	delta,
		bool	mayCollapse,
		int *	positions,
		int *	widths
	)

Definition at line 770 of file qsplitter.cpp.

 {
     if (index < 0 || index >= list.count())
         return;
 
 #ifdef QSPLITTER_DEBUG
     qDebug() << "QSplitterPrivate::doMove" << backwards << hPos << index << delta << mayCollapse;
 #endif
 
     QSplitterLayoutStruct *s = list.at(index);
     QWidget *w = s->widget;
 
     int nextId = backwards ? index - delta : index + delta;
 
     if (w->isHidden()) {
         doMove(backwards, hPos, nextId, delta, collapsible(nextId), positions, widths);
     } else {
         int hs =s->handle->isHidden() ? 0 : s->getHandleSize(orient);
 
         int  ws = backwards ? hPos - pick(s->rect.topLeft())
                  : pick(s->rect.bottomRight()) - hPos -hs + 1;
         if (ws > 0 || (!s->collapsed && !mayCollapse)) {
             ws = qMin(ws, pick(w->maximumSize()));
             ws = qMax(ws, pick(qSmartMinSize(w)));
         } else {
             ws = 0;
         }
         positions[index] = backwards ? hPos - ws : hPos + hs;
         widths[index] = ws;
         doMove(backwards, backwards ? hPos - ws - hs : hPos + hs + ws, nextId, delta,
                collapsible(nextId), positions, widths);
     }
 
 }

◆ doResize()

void QSplitterPrivate::doResize ( )

Definition at line 473 of file qsplitter.cpp.

 {
     Q_Q(QSplitter);
     QRect r = q->contentsRect();
     int n = list.count();
     QVector<QLayoutStruct> a(n*2);
     int i;
 
     bool noStretchFactorsSet = true;
     for (i = 0; i < n; ++i) {
         QSizePolicy p = list.at(i)->widget->sizePolicy();
         int sf = orient == Qt::Horizontal ? p.horizontalStretch() : p.verticalStretch();
         if (sf != 0) {
             noStretchFactorsSet = false;
             break;
         }
     }
 
     int j=0;
     for (i = 0; i < n; ++i) {
         QSplitterLayoutStruct *s = list.at(i);
 #ifdef QSPLITTER_DEBUG
         qDebug("widget %d hidden: %d collapsed: %d handle hidden: %d", i, s->widget->isHidden(),
                s->collapsed, s->handle->isHidden());
 #endif
 
         a[j].init();
         if (s->handle->isHidden()) {
             a[j].maximumSize = 0;
         } else {
             a[j].sizeHint = a[j].minimumSize = a[j].maximumSize = s->getHandleSize(orient);
             a[j].empty = false;
         }
         ++j;
 
         a[j].init();
         if (s->widget->isHidden() || s->collapsed) {
             a[j].maximumSize = 0;
         } else {
             a[j].minimumSize = pick(qSmartMinSize(s->widget));
             a[j].maximumSize = pick(s->widget->maximumSize());
             a[j].empty = false;
 
             bool stretch = noStretchFactorsSet;
             if (!stretch) {
                 QSizePolicy p = s->widget->sizePolicy();
                 int sf = orient == Qt::Horizontal ? p.horizontalStretch() : p.verticalStretch();
                 stretch = (sf != 0);
             }
             if (stretch) {
                 a[j].stretch = s->getWidgetSize(orient);
                 a[j].sizeHint = a[j].minimumSize;
                 a[j].expansive = true;
             } else {
                 a[j].sizeHint = qMax(s->getWidgetSize(orient), a[j].minimumSize);
             }
         }
         ++j;
     }
 
     qGeomCalc(a, 0, n*2, pick(r.topLeft()), pick(r.size()), 0);
 
 #ifdef QSPLITTER_DEBUG
     for (i = 0; i < n*2; ++i) {
         qDebug("%*s%d: stretch %d, sh %d, minS %d, maxS %d, exp %d, emp %d -> %d, %d",
                i, "", i,
                a[i].stretch,
                a[i].sizeHint,
                a[i].minimumSize,
                a[i].maximumSize,
                a[i].expansive,
                a[i].empty,
                a[i].pos,
                a[i].size);
     }
 #endif
 
     for (i = 0; i < n; ++i) {
         QSplitterLayoutStruct *s = list.at(i);
         setGeo(s, a[i*2+1].pos, a[i*2+1].size, false);
     }
 }

◆ findWidget()

QSplitterLayoutStruct * QSplitterPrivate::findWidget ( QWidget * w ) const

Definition at line 806 of file qsplitter.cpp.

 {
     for (int i = 0; i < list.size(); ++i) {
         if (list.at(i)->widget == w)
             return list.at(i);
     }
     return 0;
 }

◆ findWidgetJustBeforeOrJustAfter()

int QSplitterPrivate::findWidgetJustBeforeOrJustAfter	(	int	index,
		int	delta,
		int &	collapsibleSize
	)		const

Definition at line 579 of file qsplitter.cpp.

 {
     if (delta < 0)
         index += delta;
     do {
         QWidget *w = list.at(index)->widget;
         if (!w->isHidden()) {
             if (collapsible(list.at(index)))
                 collapsibleSize = pick(qSmartMinSize(w));
             return index;
         }
         index += delta;
     } while (index >= 0 && index < list.count());
 
     return -1;
 }

◆ getRange()

void QSplitterPrivate::getRange	(	int	index,
		int *	farMin,
		int *	min,
		int *	max,
		int *	farMax
	)		const

Definition at line 600 of file qsplitter.cpp.

 {
     Q_Q(const QSplitter);
     int n = list.count();
     if (index <= 0 || index >= n)
         return;
 
     int collapsibleSizeBefore = 0;
     int idJustBefore = findWidgetJustBeforeOrJustAfter(index, -1, collapsibleSizeBefore);
 
     int collapsibleSizeAfter = 0;
     int idJustAfter = findWidgetJustBeforeOrJustAfter(index, +1, collapsibleSizeAfter);
 
     int minBefore = 0;
     int minAfter = 0;
     int maxBefore = 0;
     int maxAfter = 0;
     int i;
 
     for (i = 0; i < index; ++i)
         addContribution(i, &minBefore, &maxBefore, i == idJustBefore);
     for (i = index; i < n; ++i)
         addContribution(i, &minAfter, &maxAfter, i == idJustAfter);
 
     QRect r = q->contentsRect();
     int farMinVal;
     int minVal;
     int maxVal;
     int farMaxVal;
 
     int smartMinBefore = qMax(minBefore, pick(r.size()) - maxAfter);
     int smartMaxBefore = qMin(maxBefore, pick(r.size()) - minAfter);
 
     minVal = pick(r.topLeft()) + smartMinBefore;
     maxVal = pick(r.topLeft()) + smartMaxBefore;
 
     farMinVal = minVal;
     if (minBefore - collapsibleSizeBefore >= pick(r.size()) - maxAfter)
         farMinVal -= collapsibleSizeBefore;
     farMaxVal = maxVal;
     if (pick(r.size()) - (minAfter - collapsibleSizeAfter) <= maxBefore)
         farMaxVal += collapsibleSizeAfter;
 
     if (farMin)
         *farMin = farMinVal;
     if (min)
         *min = minVal;
     if (max)
         *max = maxVal;
     if (farMax)
         *farMax = farMaxVal;
 }

◆ init()

void QSplitterPrivate::init ( )

Definition at line 374 of file qsplitter.cpp.

 {
     Q_Q(QSplitter);
     QSizePolicy sp(QSizePolicy::Expanding, QSizePolicy::Preferred);
     if (orient == Qt::Vertical)
         sp.transpose();
     q->setSizePolicy(sp);
     q->setAttribute(Qt::WA_WState_OwnSizePolicy, false);
 }

◆ insertWidget()

QSplitterLayoutStruct * QSplitterPrivate::insertWidget	(	int	index,
		QWidget *	w
	)

Definition at line 924 of file qsplitter.cpp.

 {
     Q_Q(QSplitter);
     QSplitterLayoutStruct *sls = 0;
     int i;
     int last = list.count();
     for (i = 0; i < list.size(); ++i) {
         QSplitterLayoutStruct *s = list.at(i);
         if (s->widget == w) {
             sls = s;
             --last;
             break;
         }
     }
     if (index < 0 || index > last)
         index = last;
 
     if (sls) {
         list.move(i,index);
     } else {
         QSplitterHandle *newHandle = 0;
         sls = new QSplitterLayoutStruct;
         QString tmp = QLatin1String("qt_splithandle_");
         tmp += w->objectName();
         newHandle = q->createHandle();
         newHandle->setObjectName(tmp);
         sls->handle = newHandle;
         sls->widget = w;
         w->lower();
         list.insert(index,sls);
 
         if (newHandle && q->isVisible())
             newHandle->show(); // will trigger sending of post events
 
 #ifdef QT3_SUPPORT
         if (compatMode) {
             int sf = getStretch(sls->widget);
             if (sf == 243)
                 setStretch(sls->widget, 0);
             else if (sf == 0)
                 setStretch(sls->widget, 1);
         }
 #endif
     }
     return sls;
 }

◆ insertWidget_helper()

void QSplitterPrivate::insertWidget_helper	(	int	index,
		QWidget *	widget,
		bool	show
	)

Warning: This function is not part of the public interface.

Definition at line 904 of file qsplitter.cpp.

 {
     Q_Q(QSplitter);
     QBoolBlocker b(blockChildAdd);
     bool needShow = show && q->isVisible() &&
                     !(widget->isHidden() && widget->testAttribute(Qt::WA_WState_ExplicitShowHide));
     if (widget->parentWidget() != q)
         widget->setParent(q);
     if (needShow)
         widget->show();
     insertWidget(index, widget);
     recalc(q->isVisible());
 }

◆ pick() [1/2]

int QSplitterPrivate::pick ( const QPoint & pos ) const

inline

Definition at line 98 of file qsplitter_p.h.

99 { return orient == Qt::Horizontal ? pos.x() : pos.y(); }

Qt::Horizontal

Definition: qnamespace.h:175

QSplitterPrivate::orient

Qt::Orientation orient

Definition: qsplitter_p.h:90

QPoint::y

int y() const

Returns the y coordinate of this point.

Definition: qpoint.h:131

QPoint::x

int x() const

Returns the x coordinate of this point.

Definition: qpoint.h:128

◆ pick() [2/2]

int QSplitterPrivate::pick ( const QSize & s ) const

inline

Definition at line 100 of file qsplitter_p.h.

101 { return orient == Qt::Horizontal ? s.width() : s.height(); }

Qt::Horizontal

Definition: qnamespace.h:175

QSize::width

int width() const

Returns the width.

Definition: qsize.h:126

QSplitterPrivate::orient

Qt::Orientation orient

Definition: qsplitter_p.h:90

QSize::height

int height() const

Returns the height.

Definition: qsize.h:129

◆ recalc()

void QSplitterPrivate::recalc ( bool update = false )

Definition at line 384 of file qsplitter.cpp.

 {
     Q_Q(QSplitter);
     int n = list.count();
     /*
       Splitter handles before the first visible widget or right
       before a hidden widget must be hidden.
     */
     bool first = true;
     bool allInvisible = n != 0;
     for (int i = 0; i < n ; ++i) {
         QSplitterLayoutStruct *s = list.at(i);
         bool widgetHidden = s->widget->isHidden();
         if (allInvisible && !widgetHidden && !s->collapsed)
             allInvisible = false;
         s->handle->setHidden(first || widgetHidden);
         if (!widgetHidden)
             first = false;
     }
 
     if (allInvisible)
         for (int i = 0; i < n ; ++i) {
             QSplitterLayoutStruct *s = list.at(i);
             if (!s->widget->isHidden()) {
                 s->collapsed = false;
                 break;
             }
         }
 
     int fi = 2 * q->frameWidth();
     int maxl = fi;
     int minl = fi;
     int maxt = QWIDGETSIZE_MAX;
     int mint = fi;
     /*
       calculate min/max sizes for the whole splitter
     */
     bool empty = true;
     for (int j = 0; j < n; j++) {
         QSplitterLayoutStruct *s = list.at(j);
 
         if (!s->widget->isHidden()) {
             empty = false;
             if (!s->handle->isHidden()) {
                 minl += s->getHandleSize(orient);
                 maxl += s->getHandleSize(orient);
             }
 
             QSize minS = qSmartMinSize(s->widget);
             minl += pick(minS);
             maxl += pick(s->widget->maximumSize());
             mint = qMax(mint, trans(minS));
             int tm = trans(s->widget->maximumSize());
             if (tm > 0)
                 maxt = qMin(maxt, tm);
         }
     }
 
     if (empty) {
         if (qobject_cast<QSplitter *>(parent)) {
             // nested splitters; be nice
             maxl = maxt = 0;
         } else {
             // QSplitter with no children yet
             maxl = QWIDGETSIZE_MAX;
         }
     } else {
         maxl = qMin<int>(maxl, QWIDGETSIZE_MAX);
     }
     if (maxt < mint)
         maxt = mint;
 
     if (update) {
         if (orient == Qt::Horizontal) {
             q->setMaximumSize(maxl, maxt);
             if (q->isWindow())
                 q->setMinimumSize(minl,mint);
         } else {
             q->setMaximumSize(maxt, maxl);
             if (q->isWindow())
                 q->setMinimumSize(mint,minl);
         }
         doResize();
         q->updateGeometry();
     } else {
         firstShow = true;
     }
 }

◆ setGeo()

void QSplitterPrivate::setGeo	(	QSplitterLayoutStruct *	s,
		int	pos,
		int	size,
		bool	allowCollapse
	)

Definition at line 727 of file qsplitter.cpp.

 {
     Q_Q(QSplitter);
     QWidget *w = sls->widget;
     QRect r;
     QRect contents = q->contentsRect();
     if (orient == Qt::Horizontal) {
         r.setRect(p, contents.y(), s, contents.height());
     } else {
         r.setRect(contents.x(), p, contents.width(), s);
     }
     sls->rect = r;
 
     int minSize = pick(qSmartMinSize(w));
 
     if (orient == Qt::Horizontal && q->isRightToLeft())
         r.moveRight(contents.width() - r.left());
 
     if (allowCollapse)
         sls->collapsed = s <= 0 && minSize > 0 && !w->isHidden();
 
     //   Hide the child widget, but without calling hide() so that
     //   the splitter handle is still shown.
     if (sls->collapsed)
         r.moveTopLeft(QPoint(-r.width()-1, -r.height()-1));
 
     w->setGeometry(r);
 
     if (!sls->handle->isHidden()) {
         QSplitterHandle *h = sls->handle;
         QSize hs = h->sizeHint();
         int left, top, right, bottom;
         h->getContentsMargins(&left, &top, &right, &bottom);
         if (orient==Qt::Horizontal) {
             if (q->isRightToLeft())
                 p = contents.width() - p + hs.width();
             h->setGeometry(p-hs.width() - left, contents.y(), hs.width() + left + right, contents.height());
         } else {
             h->setGeometry(contents.x(), p-hs.height() - top, contents.width(), hs.height() + top + bottom);
         }
     }
 }

◆ setSizes_helper()

void QSplitterPrivate::setSizes_helper	(	const QList< int > &	sizes,
		bool	clampNegativeSize = `false`
	)

Definition at line 699 of file qsplitter.cpp.

 {
     int j = 0;
 
     for (int i = 0; i < list.size(); ++i) {
         QSplitterLayoutStruct *s = list.at(i);
 
         s->collapsed = false;
         s->sizer = sizes.value(j++);
         if (clampNegativeSize && s->sizer < 0)
             s->sizer = 0;
         int smartMinSize = pick(qSmartMinSize(s->widget));
 
         // Make sure that we reset the collapsed state.
         if (s->sizer == 0) {
             if (collapsible(s) && smartMinSize > 0) {
                 s->collapsed = true;
             } else {
                 s->sizer = smartMinSize;
             }
         } else {
             if (s->sizer < smartMinSize)
                 s->sizer = smartMinSize;
         }
     }
     doResize();
 }

◆ storeSizes()

void QSplitterPrivate::storeSizes ( )

Definition at line 556 of file qsplitter.cpp.

 {
     for (int i = 0; i < list.size(); ++i) {
         QSplitterLayoutStruct *sls = list.at(i);
         sls->sizer = pick(sls->rect.size());
     }
 }

◆ trans() [1/2]

int QSplitterPrivate::trans ( const QPoint & pos ) const

inline

Definition at line 103 of file qsplitter_p.h.

104 { return orient == Qt::Vertical ? pos.x() : pos.y(); }

Qt::Vertical

Definition: qnamespace.h:176

QSplitterPrivate::orient

Qt::Orientation orient

Definition: qsplitter_p.h:90

QPoint::y

int y() const

Returns the y coordinate of this point.

Definition: qpoint.h:131

QPoint::x

int x() const

Returns the x coordinate of this point.

Definition: qpoint.h:128

◆ trans() [2/2]

int QSplitterPrivate::trans ( const QSize & s ) const

inline

Definition at line 105 of file qsplitter_p.h.

106 { return orient == Qt::Vertical ? s.width() : s.height(); }

Qt::Vertical

Definition: qnamespace.h:176

QSize::width

int width() const

Returns the width.

Definition: qsize.h:126

QSplitterPrivate::orient

Qt::Orientation orient

Definition: qsplitter_p.h:90

QSize::height

int height() const

Returns the height.

Definition: qsize.h:129

◆ updateHandles()

void QSplitterPrivate::updateHandles ( )

Definition at line 693 of file qsplitter.cpp.

 {
     Q_Q(QSplitter);
     recalc(q->isVisible());
 }

Properties

◆ blockChildAdd

bool QSplitterPrivate::blockChildAdd

Definition at line 96 of file qsplitter_p.h.

◆ childrenCollapsible

bool QSplitterPrivate::childrenCollapsible

Definition at line 93 of file qsplitter_p.h.

◆ compatMode

bool QSplitterPrivate::compatMode

Definition at line 94 of file qsplitter_p.h.

◆ firstShow

bool QSplitterPrivate::firstShow

Definition at line 92 of file qsplitter_p.h.

◆ handleWidth

int QSplitterPrivate::handleWidth

Definition at line 95 of file qsplitter_p.h.

◆ list

QList<QSplitterLayoutStruct *> QSplitterPrivate::list

mutable

Definition at line 89 of file qsplitter_p.h.

◆ opaque

bool QSplitterPrivate::opaque

Definition at line 91 of file qsplitter_p.h.

◆ orient

Qt::Orientation QSplitterPrivate::orient

Definition at line 90 of file qsplitter_p.h.

◆ rubberBand

QPointer<QRubberBand> QSplitterPrivate::rubberBand

Definition at line 88 of file qsplitter_p.h.

The documentation for this class was generated from the following files:

/src/gui/widgets/qsplitter_p.h
/src/gui/widgets/qsplitter.cpp

Public Functions

Public Variables

Additional Inherited Members

Detailed Description

Constructors and Destructors

◆ QSplitterPrivate()

Functions

◆ addContribution()

◆ adjustPos()

◆ collapsible() [1/2]

◆ collapsible() [2/2]

◆ doMove()

◆ doResize()

◆ findWidget()

◆ findWidgetJustBeforeOrJustAfter()

◆ getRange()

◆ init()

◆ insertWidget()

◆ insertWidget_helper()

◆ pick() [1/2]

◆ pick() [2/2]

◆ recalc()

◆ setGeo()

◆ setSizes_helper()

◆ storeSizes()

◆ trans() [1/2]

◆ trans() [2/2]

◆ updateHandles()

Properties

◆ blockChildAdd

◆ childrenCollapsible

◆ compatMode

◆ firstShow

◆ handleWidth

◆ list

◆ opaque

◆ orient

◆ rubberBand