An item rendering delegate to highlight parent items and draw better item separators. More...

#include "TreeComboBox.h"

Public Member Functions
	TreeComboItemDelegate (QObject *parent=Q_NULLPTR)

Public Member Functions inherited from QStyledItemDelegate
	QStyledItemDelegate (QObject *parent)

virtual	~QStyledItemDelegate ()

virtual QWidget *	createEditor (QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const const override

virtual QString	displayText (const QVariant &value, const QLocale &locale) const const

QItemEditorFactory *	itemEditorFactory () const const

virtual const QMetaObject *	metaObject () const const

virtual int	qt_metacall (QMetaObject::Call, int, void **)

virtual void *	qt_metacast (const char *)

virtual void	setEditorData (QWidget *editor, const QModelIndex &index) const const override

void	setItemEditorFactory (QItemEditorFactory *factory)

virtual void	setModelData (QWidget editor, QAbstractItemModel model, const QModelIndex &index) const const override

virtual void	updateEditorGeometry (QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const const override

Public Member Functions inherited from QAbstractItemDelegate
	QAbstractItemDelegate (QObject *parent)

virtual	~QAbstractItemDelegate ()

void	closeEditor (QWidget *editor, QAbstractItemDelegate::EndEditHint hint)

void	commitData (QWidget *editor)

virtual void	destroyEditor (QWidget *editor, const QModelIndex &index) const const

virtual bool	helpEvent (QHelpEvent event, QAbstractItemView view, const QStyleOptionViewItem &option, const QModelIndex &index)

void	sizeHintChanged (const QModelIndex &index)

Public Member Functions inherited from QObject
	QObject (QObject *parent)

virtual	~QObject ()

bool	blockSignals (bool block)

const QObjectList &	children () const const

QMetaObject::Connection	connect (const QObject sender, const char signal, const char *method, Qt::ConnectionType type) const const

void	deleteLater ()

void	destroyed (QObject *obj)

bool	disconnect (const char signal, const QObject receiver, const char *method) const const

bool	disconnect (const QObject receiver, const char method) const const

void	dumpObjectInfo () const const

void	dumpObjectInfo ()

void	dumpObjectTree () const const

void	dumpObjectTree ()

QList< QByteArray >	dynamicPropertyNames () const const

virtual bool	event (QEvent *e)

T	findChild (const QString &name, Qt::FindChildOptions options) const const

QList< T >	findChildren (const QRegExp &regExp, Qt::FindChildOptions options) const const

QList< T >	findChildren (const QString &name, Qt::FindChildOptions options) const const

QList< T >	findChildren (const QRegularExpression &re, Qt::FindChildOptions options) const const

bool	inherits (const char *className) const const

void	installEventFilter (QObject *filterObj)

bool	isWidgetType () const const

bool	isWindowType () const const

void	killTimer (int id)

void	moveToThread (QThread *targetThread)

QString	objectName () const const

void	objectNameChanged (const QString &objectName)

QObject *	parent () const const

QVariant	property (const char *name) const const

void	removeEventFilter (QObject *obj)

void	setObjectName (const QString &name)

void	setParent (QObject *parent)

bool	setProperty (const char *name, const QVariant &value)

bool	signalsBlocked () const const

int	startTimer (int interval, Qt::TimerType timerType)

int	startTimer (std::chrono::milliseconds time, Qt::TimerType timerType)

QThread *	thread () const const

Static Public Member Functions
static bool	isParent (const QModelIndex &index)

static bool	isSeparator (const QModelIndex &index)

static void	setParent (QAbstractItemModel *model, const QModelIndex &index, const bool selectable=false)

static void	setSeparator (QAbstractItemModel *model, const QModelIndex &index)

Static Public Member Functions inherited from QStyledItemDelegate
QString	tr (const char s, const char c, int n)

QString	trUtf8 (const char s, const char c, int n)

Static Public Member Functions inherited from QAbstractItemDelegate
QString	elidedText (const QFontMetrics &fontMetrics, int width, Qt::TextElideMode mode, const QString &text)

QString	tr (const char s, const char c, int n)

QString	trUtf8 (const char s, const char c, int n)

Static Public Member Functions inherited from QObject
QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, PointerToMemberFunction signal, const QObject receiver, PointerToMemberFunction method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)

QMetaObject::Connection	connect (const QObject sender, PointerToMemberFunction signal, const QObject context, Functor functor, Qt::ConnectionType type)

bool	disconnect (const QMetaObject::Connection &connection)

bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char method)

bool	disconnect (const QObject sender, PointerToMemberFunction signal, const QObject receiver, PointerToMemberFunction method)

bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method)

QString	tr (const char sourceText, const char disambiguation, int n)

QString	trUtf8 (const char sourceText, const char disambiguation, int n)

Protected Member Functions
virtual void	paint (QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override

virtual QSize	sizeHint (const QStyleOptionViewItem &option, const QModelIndex &index) const override

Protected Member Functions inherited from QStyledItemDelegate
virtual bool	editorEvent (QEvent event, QAbstractItemModel model, const QStyleOptionViewItem &option, const QModelIndex &index) override

virtual bool	eventFilter (QObject editor, QEvent event) override

virtual void	initStyleOption (QStyleOptionViewItem *option, const QModelIndex &index) const const

Protected Member Functions inherited from QObject
virtual void	childEvent (QChildEvent *event)

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	customEvent (QEvent *event)

virtual void	disconnectNotify (const QMetaMethod &signal)

bool	isSignalConnected (const QMetaMethod &signal) const const

int	receivers (const char *signal) const const

QObject *	sender () const const

int	senderSignalIndex () const const

virtual void	timerEvent (QTimerEvent *event)

Additional Inherited Members
Public Types inherited from QAbstractItemDelegate
enum	EndEditHint

Properties inherited from QObject
	objectName

Public Attributes inherited from QAbstractItemDelegate
	EditNextItem

	EditPreviousItem

	NoHint

	RevertModelCache

	SubmitModelCache

Detailed Description

An item rendering delegate to highlight parent items and draw better item separators.

Used by TreeComboBox.

This delegate differs from the default by how it renders separator items and by adding a new formatting style for "parent" items. With this delegate, separators are visible on all platforms. Parent items get bolded and italicisized fonts. Parent items are drawn with enabled style even if they're actually disabled. It also has convenience static functions for flagging/checking a data model item as a separator or parent. The separator type is fully compatible with default QComboBox (it is set the same way).

Definition at line 50 of file TreeComboBox.h.

Constructor & Destructor Documentation

◆ TreeComboItemDelegate()

TreeComboItemDelegate::TreeComboItemDelegate ( QObject * parent = Q_NULLPTR )

inlineexplicit

Definition at line 55 of file TreeComboBox.h.

Member Function Documentation

◆ isParent()

bool TreeComboItemDelegate::isParent ( const QModelIndex & index )

static

Definition at line 50 of file TreeComboBox.cpp.

◆ isSeparator()

bool TreeComboItemDelegate::isSeparator ( const QModelIndex & index )

static

Definition at line 45 of file TreeComboBox.cpp.

◆ paint()

void TreeComboItemDelegate::paint	(	QPainter *	painter,
		const QStyleOptionViewItem &	option,
		const QModelIndex &	index
	)		const

overrideprotectedvirtual

Reimplemented from QStyledItemDelegate.

Definition at line 72 of file TreeComboBox.cpp.

◆ setParent()

void TreeComboItemDelegate::setParent	(	QAbstractItemModel *	model,
		const QModelIndex &	index,
		const bool	selectable = `false`
	)

static

Definition at line 63 of file TreeComboBox.cpp.

◆ setSeparator()

void TreeComboItemDelegate::setSeparator	(	QAbstractItemModel *	model,
		const QModelIndex &	index
	)

static

Definition at line 55 of file TreeComboBox.cpp.

◆ sizeHint()

QSize TreeComboItemDelegate::sizeHint	(	const QStyleOptionViewItem &	option,
		const QModelIndex &	index
	)		const

overrideprotectedvirtual

Reimplemented from QStyledItemDelegate.

Definition at line 97 of file TreeComboBox.cpp.

Public Member Functions

Static Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ TreeComboItemDelegate()

Member Function Documentation

◆ isParent()

◆ isSeparator()

◆ paint()

◆ setParent()

◆ setSeparator()

◆ sizeHint()