#include <qcolumnview_p.h>

Inheritance diagram for QColumnViewPrivate:

Public Functions
void	_q_changeCurrentColumn ()

void	_q_clicked (const QModelIndex &index)

void	_q_columnsInserted (const QModelIndex &parent, int start, int end)

void	_q_gripMoved (int offset)

void	checkColumnCreation (const QModelIndex &parent)
	Makes sure we create a corresponding column as a result of changing the model. More...

void	closeColumns (const QModelIndex &parent=QModelIndex(), bool build=false)
	Find where the current columns intersect parent's columns. More...

QAbstractItemView *	createColumn (const QModelIndex &index, bool show)
	Create a new column for index. More...

void	doLayout ()
	Place all of the columns where they belong inside of the viewport, resize as necessary. More...

void	initialize ()

	QColumnViewPrivate ()

void	setPreviewWidget (QWidget *widget)

void	updateScrollbars ()

	~QColumnViewPrivate ()

Public Functions inherited from QAbstractItemViewPrivate
virtual void	_q_columnsAboutToBeRemoved (const QModelIndex &parent, int start, int end)
	This slot is called when columns are about to be removed. More...

virtual void	_q_columnsRemoved (const QModelIndex &parent, int start, int end)
	This slot is called when columns have been removed. More...

void	_q_headerDataChanged ()

virtual void	_q_layoutChanged ()
	This slot is called when the layout is changed. More...

virtual void	_q_modelDestroyed ()

virtual void	_q_rowsInserted (const QModelIndex &parent, int start, int end)
	This slot is called when rows have been inserted. More...

virtual void	_q_rowsRemoved (const QModelIndex &parent, int start, int end)
	This slot is called when rows have been removed. More...

void	addEditor (const QModelIndex &index, QWidget *editor, bool isStatic)

virtual void	adjustViewOptionsForIndex (QStyleOptionViewItemV4 *, const QModelIndex &) const

bool	canDecode (QDropEvent *e) const

void	checkMouseMove (const QPersistentModelIndex &index)

void	checkMouseMove (const QPoint &pos)

void	checkPersistentEditorFocus ()
	When persistent aeditor gets/loses focus, we need to check and setcorrectly the current index. More...

void	clearOrRemove ()
	In DND if something has been moved then this is called. More...

virtual QPoint	contentsOffset () const

QItemSelectionModel::SelectionFlags	contiguousSelectionCommand (const QModelIndex &index, const QEvent *event) const

QAbstractItemDelegate *	delegateForIndex (const QModelIndex &index) const

int	delegateRefCount (const QAbstractItemDelegate *delegate) const

void	doDelayedItemsLayout (int delay=0)

void	doDelayedReset ()

virtual QItemViewPaintPairs	draggablePaintPairs (const QModelIndexList &indexes, QRect *r) const

virtual bool	dropOn (QDropEvent event, int row, int col, QModelIndex index)
	If the event hasn't already been accepted, determines the index to drop on. More...

bool	droppingOnItself (QDropEvent *event, const QModelIndex &index)
	Return true if this is a move from ourself and index is a child of the selection that is being moved. More...

QWidget *	editor (const QModelIndex &index, const QStyleOptionViewItem &options)

const QEditorInfo &	editorForIndex (const QModelIndex &index) const

void	executePostedLayout () const

QItemSelectionModel::SelectionFlags	extendedSelectionCommand (const QModelIndex &index, const QEvent *event) const

void	fetchMore ()

bool	hasEditor (const QModelIndex &index) const

QModelIndex	indexForEditor (QWidget *editor) const

void	init ()

void	interruptDelayedItemsLayout () const

bool	isAnimating () const

bool	isIndexDragEnabled (const QModelIndex &index) const

bool	isIndexDropEnabled (const QModelIndex &index) const

bool	isIndexEnabled (const QModelIndex &index) const

bool	isIndexSelectable (const QModelIndex &index) const

bool	isIndexValid (const QModelIndex &index) const

bool	isPersistent (const QModelIndex &index) const

QItemSelectionModel::SelectionFlags	multiSelectionCommand (const QModelIndex &index, const QEvent *event) const

QPoint	offset () const

bool	openEditor (const QModelIndex &index, QEvent *event)

void	paintDropIndicator (QPainter *painter)

virtual QAbstractItemView::DropIndicatorPosition	position (const QPoint &pos, const QRect &rect, const QModelIndex &idx) const

	QAbstractItemViewPrivate ()

void	releaseEditor (QWidget *editor) const

void	removeEditor (QWidget *editor)

QPixmap	renderToPixmap (const QModelIndexList &indexes, QRect *r) const

void	scrollContentsBy (int dx, int dy)

void	scrollDirtyRegion (int dx, int dy)

virtual void	selectAll (QItemSelectionModel::SelectionFlags command)

QModelIndexList	selectedDraggableIndexes () const

virtual bool	selectionAllowed (const QModelIndex &index) const

QItemSelectionModel::SelectionFlags	selectionBehaviorFlags () const

bool	sendDelegateEvent (const QModelIndex &index, QEvent *event) const

void	setDirtyRegion (const QRegion &visualRegion)

void	setHoverIndex (const QPersistentModelIndex &index)

bool	shouldAutoScroll (const QPoint &pos) const

bool	shouldEdit (QAbstractItemView::EditTrigger trigger, const QModelIndex &index) const

bool	shouldForwardEvent (QAbstractItemView::EditTrigger trigger, const QEvent *event) const

void	startAutoScroll ()

void	stopAutoScroll ()

void	updateDirtyRegion ()

void	updateEditorData (const QModelIndex &topLeft, const QModelIndex &bottomRight)

QStyleOptionViewItemV4	viewOptionsV4 () const

virtual	~QAbstractItemViewPrivate ()

Public Functions inherited from QAbstractScrollAreaPrivate
void	_q_hslide (int)

void	_q_showOrHideScrollBars ()

void	_q_vslide (int)

void	init ()

void	layoutChildren ()

	QAbstractScrollAreaPrivate ()

void	replaceScrollBar (QScrollBar *scrollBar, Qt::Orientation orientation)

virtual void	scrollBarPolicyChanged (Qt::Orientation, Qt::ScrollBarPolicy)

void	setSingleFingerPanEnabled (bool on=true)

bool	viewportEvent (QEvent *event)

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
QList< QAbstractItemView * >	columns

QVector< int >	columnSizes

QPropertyAnimation	currentAnimation

int	offset

QAbstractItemView *	previewColumn

QWidget *	previewWidget

bool	showResizeGrips

Public Variables inherited from QAbstractItemViewPrivate
bool	alternatingColors

bool	autoScroll

int	autoScrollCount

int	autoScrollMargin

QBasicTimer	autoScrollTimer

QMap< int, QPointer< QAbstractItemDelegate > >	columnDelegates

QItemSelectionModel::SelectionFlag	ctrlDragSelectionFlag

bool	currentIndexSet

QWidget *	currentlyCommittingEditor

Qt::DropAction	defaultDropAction

QBasicTimer	delayedAutoScroll

QBasicTimer	delayedEditing

bool	delayedPendingLayout

QBasicTimer	delayedReset

QAbstractItemView::DragDropMode	dragDropMode

bool	dragEnabled

QAbstractItemView::DropIndicatorPosition	dropIndicatorPosition

QRect	dropIndicatorRect

QEditorIndexHash	editorIndexHash

QAbstractItemView::EditTriggers	editTriggers

QPersistentModelIndex	enteredIndex

QAbstractItemView::ScrollMode	horizontalScrollMode

QPersistentModelIndex	hover

QSize	iconSize

QIndexEditorHash	indexEditorHash

QPointer< QAbstractItemDelegate >	itemDelegate

QString	keyboardInput

QElapsedTimer	keyboardInputTime

QAbstractItemView::EditTrigger	lastTrigger

QAbstractItemModel *	model

bool	moveCursorUpdatedView

bool	noSelectionOnMousePress

bool	overwrite

QSet< QWidget * >	persistent

bool	pressedAlreadySelected

QPersistentModelIndex	pressedIndex

Qt::KeyboardModifiers	pressedModifiers

QPoint	pressedPosition

QPersistentModelIndex	root

QMap< int, QPointer< QAbstractItemDelegate > >	rowDelegates

QPoint	scrollDelayOffset

QAbstractItemView::SelectionBehavior	selectionBehavior

QAbstractItemView::SelectionMode	selectionMode

QPointer< QItemSelectionModel >	selectionModel

bool	shouldClearStatusTip

bool	shouldScrollToCurrentOnShow

bool	showDropIndicator

QAbstractItemView::State	state

QAbstractItemView::State	stateBeforeAnimation

bool	tabKeyNavigation

Qt::TextElideMode	textElideMode

QRegion	updateRegion

QBasicTimer	updateTimer

QAbstractItemView::ScrollMode	verticalScrollMode

bool	viewportEnteredNeeded

bool	wrapItemText

Public Variables inherited from QAbstractScrollAreaPrivate
int	bottom

QRect	cornerPaintingRect

QWidget *	cornerWidget

QScrollBar *	hbar

Qt::ScrollBarPolicy	hbarpolicy

int	left

QRect	reverseCornerPaintingRect

int	right

QAbstractScrollAreaScrollBarContainer *	scrollBarContainers [Qt::Vertical+1]

bool	singleFingerPanEnabled

int	top

QScrollBar *	vbar

Qt::ScrollBarPolicy	vbarpolicy

QWidget *	viewport

QScopedPointer< QObject >	viewportFilter

int	xoffset

int	yoffset

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 136 of file qcolumnview_p.h.

Constructors and Destructors

◆ QColumnViewPrivate()

QColumnViewPrivate::QColumnViewPrivate ( )

Definition at line 1053 of file qcolumnview.cpp.

 :  QAbstractItemViewPrivate()
 ,showResizeGrips(true)
 ,offset(0)
 ,previewWidget(0)
 ,previewColumn(0)
 {
 }

◆ ~QColumnViewPrivate()

QColumnViewPrivate::~QColumnViewPrivate ( )

Definition at line 1062 of file qcolumnview.cpp.

1063 {

1064 }

Functions

◆ _q_changeCurrentColumn()

void QColumnViewPrivate::_q_changeCurrentColumn ( )

Definition at line 966 of file qcolumnview.cpp.

 {
     Q_Q(QColumnView);
     if (columns.isEmpty())
         return;
 
     QModelIndex current = q->currentIndex();
     if (!current.isValid())
         return;
 
     // We might have scrolled far to the left so we need to close all of the children
     closeColumns(current, true);
 
     // Set up the "current" column with focus
     int currentColumn = qMax(0, columns.size() - 2);
     QAbstractItemView *parentColumn = columns.at(currentColumn);
     if (q->hasFocus())
         parentColumn->setFocus(Qt::OtherFocusReason);
     q->setFocusProxy(parentColumn);
 
     // find the column that is our current selection model and give it a new one.
     for (int i = 0; i < columns.size(); ++i) {
         if (columns.at(i)->selectionModel() == q->selectionModel()) {
             QItemSelectionModel *replacementSelectionModel =
                 new QItemSelectionModel(parentColumn->model());
             replacementSelectionModel->setCurrentIndex(
                 q->selectionModel()->currentIndex(), QItemSelectionModel::Current);
             replacementSelectionModel->select(
                 q->selectionModel()->selection(), QItemSelectionModel::Select);
             QAbstractItemView *view = columns.at(i);
             view->setSelectionModel(replacementSelectionModel);
             view->setFocusPolicy(Qt::NoFocus);
             if (columns.size() > i + 1)
                 view->setCurrentIndex(columns.at(i+1)->rootIndex());
             break;
         }
     }
     parentColumn->selectionModel()->deleteLater();
     parentColumn->setFocusPolicy(Qt::StrongFocus);
     parentColumn->setSelectionModel(q->selectionModel());
     // We want the parent selection to stay highlighted (but dimmed depending upon the color theme)
     if (currentColumn > 0) {
         parentColumn = columns.at(currentColumn - 1);
         if (parentColumn->currentIndex() != current.parent())
             parentColumn->setCurrentIndex(current.parent());
     }
 
     if (columns.last()->isHidden()) {
         columns.last()->setVisible(true);
     }
     if (columns.last()->selectionModel())
         columns.last()->selectionModel()->clear();
     updateScrollbars();
 }

◆ _q_clicked()

void QColumnViewPrivate::_q_clicked ( const QModelIndex & index )

Definition at line 649 of file qcolumnview.cpp.

 {
     Q_Q(QColumnView);
     QModelIndex parent = index.parent();
     QAbstractItemView *columnClicked = 0;
     for (int column = 0; column < columns.count(); ++column) {
         if (columns.at(column)->rootIndex() == parent) {
             columnClicked = columns[column];
             break;
         }
     }
     if (q->selectionModel() && columnClicked) {
         QItemSelectionModel::SelectionFlags flags = QItemSelectionModel::Current;
         if (columnClicked->selectionModel()->isSelected(index))
             flags |= QItemSelectionModel::Select;
         q->selectionModel()->setCurrentIndex(index, flags);
     }
 }

◆ _q_columnsInserted()

void QColumnViewPrivate::_q_columnsInserted	(	const QModelIndex &	parent,
		int	start,
		int	end
	)

virtual

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

Reimplemented from QAbstractItemViewPrivate.

Definition at line 1070 of file qcolumnview.cpp.

 {
     QAbstractItemViewPrivate::_q_columnsInserted(parent, start, end);
     checkColumnCreation(parent);
 }

◆ _q_gripMoved()

void QColumnViewPrivate::_q_gripMoved ( int offset )

Warning: This function is not part of the public interface. Move all widgets from the corner grip and to the right

Definition at line 534 of file qcolumnview.cpp.

 {
     Q_Q(QColumnView);
 
     QObject *grip = q->sender();
     Q_ASSERT(grip);
 
     if (q->isRightToLeft())
         offset = -1 * offset;
 
     bool found = false;
     for (int i = 0; i < columns.size(); ++i) {
         if (!found && columns.at(i)->cornerWidget() == grip) {
             found = true;
             columnSizes[i] = columns.at(i)->width();
             if (q->isRightToLeft())
                 columns.at(i)->move(columns.at(i)->x() + offset, 0);
             continue;
         }
         if (!found)
             continue;
 
         int currentX = columns.at(i)->x();
         columns.at(i)->move(currentX + offset, 0);
     }
 
     updateScrollbars();
 }

◆ checkColumnCreation()

void QColumnViewPrivate::checkColumnCreation ( const QModelIndex & parent )

Makes sure we create a corresponding column as a result of changing the model.

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

Definition at line 1085 of file qcolumnview.cpp.

Referenced by _q_columnsInserted().

 {
     if (parent == q_func()->currentIndex() && model->hasChildren(parent)) {
         //the parent has children and is the current
         //let's try to find out if there is already a mapping that is good
         for (int i = 0; i < columns.count(); ++i) {
             QAbstractItemView *view = columns.at(i);
             if (view->rootIndex() == parent) {
                 if (view == previewColumn) {
                     //let's recreate the parent
                     closeColumns(parent, false);
                     createColumn(parent, true /*show*/);
                 }
                 break;
             }
         }
     }
 }

◆ closeColumns()

void QColumnViewPrivate::closeColumns	(	const QModelIndex &	parent = `QModelIndex()`,
		bool	build = `false`
	)

Find where the current columns intersect parent's columns.

Delete any extra columns and insert any needed columns.

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

Definition at line 573 of file qcolumnview.cpp.

Referenced by checkColumnCreation().

 {
     if (columns.isEmpty())
         return;
 
     bool clearAll = !parent.isValid();
     bool passThroughRoot = false;
 
     QList<QModelIndex> dirsToAppend;
 
     // Find the last column that matches the parent's tree
     int currentColumn = -1;
     QModelIndex parentIndex = parent;
     while (currentColumn == -1 && parentIndex.isValid()) {
         if (columns.isEmpty())
             break;
         parentIndex = parentIndex.parent();
         if (root == parentIndex)
             passThroughRoot = true;
         if (!parentIndex.isValid())
             break;
         for (int i = columns.size() - 1; i >= 0; --i) {
             if (columns.at(i)->rootIndex() == parentIndex) {
                 currentColumn = i;
                 break;
             }
         }
         if (currentColumn == -1)
             dirsToAppend.append(parentIndex);
     }
 
     // Someone wants to go to an index that can be reached without changing
     // the root index, don't allow them
     if (!clearAll && !passThroughRoot && currentColumn == -1)
         return;
 
     if (currentColumn == -1 && parent.isValid())
         currentColumn = 0;
 
     // Optimization so we don't go deleting and then creating the same thing
     bool alreadyExists = false;
     if (build && columns.size() > currentColumn + 1) {
         bool viewingParent = (columns.at(currentColumn + 1)->rootIndex() == parent);
         bool viewingChild = (!model->hasChildren(parent)
                              && !columns.at(currentColumn + 1)->rootIndex().isValid());
         if (viewingParent || viewingChild) {
             currentColumn++;
             alreadyExists = true;
         }
     }
 
     // Delete columns that don't match our path
     for (int i = columns.size() - 1; i > currentColumn; --i) {
         QAbstractItemView* notShownAnymore = columns.at(i);
         columns.removeAt(i);
         notShownAnymore->setVisible(false);
         if (notShownAnymore != previewColumn)
             notShownAnymore->deleteLater();
     }
 
     if (columns.isEmpty()) {
         offset = 0;
         updateScrollbars();
     }
 
     // Now fill in missing columns
     while (!dirsToAppend.isEmpty()) {
         QAbstractItemView *newView = createColumn(dirsToAppend.takeLast(), true);
         if (!dirsToAppend.isEmpty())
             newView->setCurrentIndex(dirsToAppend.last());
     }
 
     if (build && !alreadyExists)
         createColumn(parent, false);
 }

◆ createColumn()

QAbstractItemView * QColumnViewPrivate::createColumn	(	const QModelIndex &	index,
		bool	show
	)

Create a new column for index.

Warning: This function is not part of the public interface. A grip is attached if requested and it is shown if requested.

Return the new view

See also: createColumn() setPreviewWidget(); doLayout()

Definition at line 681 of file qcolumnview.cpp.

Referenced by checkColumnCreation().

 {
     Q_Q(QColumnView);
     QAbstractItemView *view = 0;
     if (model->hasChildren(index)) {
         view = q->createColumn(index);
         q->connect(view, SIGNAL(clicked(QModelIndex)),
                    q, SLOT(_q_clicked(QModelIndex)));
     } else {
         if (!previewColumn)
             setPreviewWidget(new QWidget(q));
         view = previewColumn;
         view->setMinimumWidth(qMax(view->minimumWidth(), previewWidget->minimumWidth()));
     }
 
     q->connect(view, SIGNAL(activated(QModelIndex)),
             q, SIGNAL(activated(QModelIndex)));
     q->connect(view, SIGNAL(clicked(QModelIndex)),
             q, SIGNAL(clicked(QModelIndex)));
     q->connect(view, SIGNAL(doubleClicked(QModelIndex)),
             q, SIGNAL(doubleClicked(QModelIndex)));
     q->connect(view, SIGNAL(entered(QModelIndex)),
             q, SIGNAL(entered(QModelIndex)));
     q->connect(view, SIGNAL(pressed(QModelIndex)),
             q, SIGNAL(pressed(QModelIndex)));
 
     view->setFocusPolicy(Qt::NoFocus);
     view->setParent(viewport);
     Q_ASSERT(view);
 
     // Setup corner grip
     if (showResizeGrips) {
         QColumnViewGrip *grip = new QColumnViewGrip(view);
         view->setCornerWidget(grip);
         q->connect(grip, SIGNAL(gripMoved(int)), q, SLOT(_q_gripMoved(int)));
     }
 
     if (columnSizes.count() > columns.count()) {
         view->setGeometry(0, 0, columnSizes.at(columns.count()), viewport->height());
     } else {
         int initialWidth = view->sizeHint().width();
         if (q->isRightToLeft())
             view->setGeometry(viewport->width() - initialWidth, 0, initialWidth, viewport->height());
         else
             view->setGeometry(0, 0, initialWidth, viewport->height());
         columnSizes.resize(qMax(columnSizes.count(), columns.count() + 1));
         columnSizes[columns.count()] = initialWidth;
     }
     if (!columns.isEmpty() && columns.last()->isHidden())
         columns.last()->setVisible(true);
 
     columns.append(view);
     doLayout();
     updateScrollbars();
     if (show && view->isHidden())
         view->setVisible(true);
     return view;
 }

◆ doLayout()

void QColumnViewPrivate::doLayout ( )

Place all of the columns where they belong inside of the viewport, resize as necessary.

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

Definition at line 1111 of file qcolumnview.cpp.

 {
     Q_Q(QColumnView);
     if (!model || columns.isEmpty())
         return;
 
     int viewportHeight = viewport->height();
     int x = columns.at(0)->x();
 
     if (q->isRightToLeft()) {
         x = viewport->width() + q->horizontalOffset();
         for (int i = 0; i < columns.size(); ++i) {
             QAbstractItemView *view = columns.at(i);
             x -= view->width();
             if (x != view->x() || viewportHeight != view->height())
                 view->setGeometry(x, 0, view->width(), viewportHeight);
         }
     } else {
         for (int i = 0; i < columns.size(); ++i) {
             QAbstractItemView *view = columns.at(i);
             int currentColumnWidth = view->width();
             if (x != view->x() || viewportHeight != view->height())
                 view->setGeometry(x, 0, currentColumnWidth, viewportHeight);
             x += currentColumnWidth;
         }
     }
 }

◆ initialize()

void QColumnViewPrivate::initialize ( )

Definition at line 109 of file qcolumnview.cpp.

 {
     Q_Q(QColumnView);
     q->setTextElideMode(Qt::ElideMiddle);
 #ifndef QT_NO_ANIMATION
     QObject::connect(&currentAnimation, SIGNAL(finished()), q, SLOT(_q_changeCurrentColumn()));
     currentAnimation.setDuration(ANIMATION_DURATION_MSEC);
     currentAnimation.setTargetObject(hbar);
     currentAnimation.setPropertyName("value");
     currentAnimation.setEasingCurve(QEasingCurve::InOutQuad);
 #endif //QT_NO_ANIMATION
     delete itemDelegate;
     q->setItemDelegate(new QColumnViewDelegate(q));
 }

◆ setPreviewWidget()

void QColumnViewPrivate::setPreviewWidget ( QWidget * widget )

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

Definition at line 850 of file qcolumnview.cpp.

 {
     Q_Q(QColumnView);
     if (previewColumn) {
         if (!columns.isEmpty() && columns.last() == previewColumn)
             columns.removeLast();
         previewColumn->deleteLater();
     }
     QColumnViewPreviewColumn *column = new QColumnViewPreviewColumn(q);
     column->setPreviewWidget(widget);
     previewColumn = column;
     previewColumn->hide();
     previewColumn->setFrameShape(QFrame::NoFrame);
     previewColumn->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
     previewColumn->setSelectionMode(QAbstractItemView::NoSelection);
     previewColumn->setMinimumWidth(qMax(previewColumn->verticalScrollBar()->width(),
                 previewColumn->minimumWidth()));
     previewWidget = widget;
     previewWidget->setParent(previewColumn->viewport());
 }

◆ updateScrollbars()

void QColumnViewPrivate::updateScrollbars ( )

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

Definition at line 411 of file qcolumnview.cpp.

 {
     Q_Q(QColumnView);
 #ifndef QT_NO_ANIMATION
     if (currentAnimation.state() == QPropertyAnimation::Running)
         return;
 #endif //QT_NO_ANIMATION
 
     // find the total horizontal length of the laid out columns
     int horizontalLength = 0;
     if (!columns.isEmpty()) {
         horizontalLength = (columns.last()->x() + columns.last()->width()) - columns.first()->x();
         if (horizontalLength <= 0) // reverse mode
             horizontalLength = (columns.first()->x() + columns.first()->width()) - columns.last()->x();
     }
 
     QSize viewportSize = viewport->size();
     if (horizontalLength < viewportSize.width() && hbar->value() == 0) {
         hbar->setRange(0, 0);
     } else {
         int visibleLength = qMin(horizontalLength + q->horizontalOffset(), viewportSize.width());
         int hiddenLength = horizontalLength - visibleLength;
         if (hiddenLength != hbar->maximum())
             hbar->setRange(0, hiddenLength);
     }
     if (!columns.isEmpty()) {
         int pageStepSize = columns.at(0)->width();
         if (pageStepSize != hbar->pageStep())
             hbar->setPageStep(pageStepSize);
     }
     bool visible = (hbar->maximum() > 0);
     if (visible != hbar->isVisible())
         hbar->setVisible(visible);
 }

Properties

◆ columns

QList<QAbstractItemView*> QColumnViewPrivate::columns

Definition at line 159 of file qcolumnview_p.h.

Referenced by checkColumnCreation(), and doLayout().

◆ columnSizes

QVector<int> QColumnViewPrivate::columnSizes

Definition at line 160 of file qcolumnview_p.h.

◆ currentAnimation

QPropertyAnimation QColumnViewPrivate::currentAnimation

Definition at line 164 of file qcolumnview_p.h.

◆ offset

int QColumnViewPrivate::offset

Definition at line 162 of file qcolumnview_p.h.

◆ previewColumn

QAbstractItemView* QColumnViewPrivate::previewColumn

Definition at line 167 of file qcolumnview_p.h.

Referenced by checkColumnCreation().

◆ previewWidget

QWidget* QColumnViewPrivate::previewWidget

Definition at line 166 of file qcolumnview_p.h.

◆ showResizeGrips

bool QColumnViewPrivate::showResizeGrips

Definition at line 161 of file qcolumnview_p.h.

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

/src/gui/itemviews/qcolumnview_p.h
/src/gui/itemviews/qcolumnview.cpp

Public Functions

Public Variables

Additional Inherited Members

Detailed Description

Constructors and Destructors

◆ QColumnViewPrivate()

◆ ~QColumnViewPrivate()

Functions

◆ _q_changeCurrentColumn()

◆ _q_clicked()

◆ _q_columnsInserted()

◆ _q_gripMoved()

◆ checkColumnCreation()

◆ closeColumns()

◆ createColumn()

◆ doLayout()

◆ initialize()

◆ setPreviewWidget()

◆ updateScrollbars()

Properties

◆ columns

◆ columnSizes

◆ currentAnimation

◆ offset

◆ previewColumn

◆ previewWidget

◆ showResizeGrips