Inheritance diagram for QFontFamilyDelegate:

Public Functions
void	paint (QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
	This pure abstract function must be reimplemented if you want to provide custom rendering. More...

	QFontFamilyDelegate (QObject *parent)

QSize	sizeHint (const QStyleOptionViewItem &option, const QModelIndex &index) const
	This pure abstract function must be reimplemented if you want to provide custom rendering. More...

Public Functions inherited from QAbstractItemDelegate
virtual QWidget *	createEditor (QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const
	Returns the editor to be used for editing the data item with the given index. More...

virtual bool	editorEvent (QEvent event, QAbstractItemModel model, const QStyleOptionViewItem &option, const QModelIndex &index)
	When editing of an item starts, this function is called with the event that triggered the editing, the model, the index of the item, and the option used for rendering the item. More...

	QAbstractItemDelegate (QObject *parent=0)
	Creates a new abstract item delegate with the given parent. More...

virtual void	setEditorData (QWidget *editor, const QModelIndex &index) const
	Sets the contents of the given editor to the data for the item at the given index. More...

virtual void	setModelData (QWidget editor, QAbstractItemModel model, const QModelIndex &index) const
	Sets the data for the item at the given index in the model to the contents of the given editor. More...

virtual void	updateEditorGeometry (QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const
	Updates the geometry of the editor for the item with the given index, according to the rectangle specified in the option. More...

virtual	~QAbstractItemDelegate ()
	Destroys the abstract item delegate. More...

Public Functions inherited from QObject
bool	blockSignals (bool b)
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). More...

const QObjectList &	children () const
	Returns a list of child objects. More...

bool	connect (const QObject sender, const char signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const

bool	disconnect (const char signal=0, const QObject receiver=0, const char *member=0)

bool	disconnect (const QObject receiver, const char member=0)

void	dumpObjectInfo ()
	Dumps information about signal connections, etc. More...

void	dumpObjectTree ()
	Dumps a tree of children to the debug output. More...

QList< QByteArray >	dynamicPropertyNames () const
	Returns the names of all properties that were dynamically added to the object using setProperty(). More...

virtual bool	event (QEvent *)
	This virtual function receives events to an object and should return true if the event e was recognized and processed. More...

virtual bool	eventFilter (QObject , QEvent )
	Filters events if this object has been installed as an event filter for the watched object. More...

template<typename T >
T	findChild (const QString &aName=QString()) const
	Returns the child of this object that can be cast into type T and that is called name, or 0 if there is no such object. More...

template<typename T >
QList< T >	findChildren (const QString &aName=QString()) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects. More...

template<typename T >
QList< T >	findChildren (const QRegExp &re) const

bool	inherits (const char *classname) const
	Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false. More...

void	installEventFilter (QObject *)
	Installs an event filter filterObj on this object. More...

bool	isWidgetType () const
	Returns true if the object is a widget; otherwise returns false. More...

void	killTimer (int id)
	Kills the timer with timer identifier, id. More...

virtual const QMetaObject *	metaObject () const
	Returns a pointer to the meta-object of this object. More...

void	moveToThread (QThread *thread)
	Changes the thread affinity for this object and its children. More...

QString	objectName () const

QObject *	parent () const
	Returns a pointer to the parent object. More...

QVariant	property (const char *name) const
	Returns the value of the object's name property. More...

Q_INVOKABLE	QObject (QObject *parent=0)
	Constructs an object with parent object parent. More...

void	removeEventFilter (QObject *)
	Removes an event filter object obj from this object. More...

void	setObjectName (const QString &name)

void	setParent (QObject *)
	Makes the object a child of parent. More...

bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value. More...

void	setUserData (uint id, QObjectUserData *data)

bool	signalsBlocked () const
	Returns true if signals are blocked; otherwise returns false. More...

int	startTimer (int interval)
	Starts a timer and returns a timer identifier, or returns zero if it could not start a timer. More...

QThread *	thread () const
	Returns the thread in which the object lives. More...

QObjectUserData *	userData (uint id) const

virtual	~QObject ()
	Destroys the object, deleting all its child objects. More...

Public Variables
QIcon	bitmap

QIcon	truetype

QFontDatabase::WritingSystem	writingSystem

Additional Inherited Members
Public Types inherited from QAbstractItemDelegate
enum	EndEditHint { NoHint, EditNextItem, EditPreviousItem, SubmitModelCache, RevertModelCache }
	This enum describes the different hints that the delegate can give to the model and view components to make editing data in a model a comfortable experience for the user. More...

Public Slots inherited from QAbstractItemDelegate
bool	helpEvent (QHelpEvent event, QAbstractItemView view, const QStyleOptionViewItem &option, const QModelIndex &index)
	Whenever a help event occurs, this function is called with the event view option and the index that corresponds to the item where the event occurs. More...

Public Slots inherited from QObject
void	deleteLater ()
	Schedules this object for deletion. More...

Signals inherited from QAbstractItemDelegate
void	closeEditor (QWidget *editor, QAbstractItemDelegate::EndEditHint hint=NoHint)
	This signal is emitted when the user has finished editing an item using the specified editor. More...

void	commitData (QWidget *editor)
	This signal must be emitted when the editor widget has completed editing the data, and wants to write it back into the model. More...

void	sizeHintChanged (const QModelIndex &)
	This signal must be emitted when the sizeHint() of index changed. More...

Signals inherited from QObject
void	destroyed (QObject *=0)
	This signal is emitted immediately before the object obj is destroyed, and can not be blocked. More...

Static Public Functions inherited from QAbstractItemDelegate
static QString	elidedText (const QFontMetrics &fontMetrics, int width, Qt::TextElideMode mode, const QString &text)
	Use QFontMetrics::elidedText() instead. More...

Static Public Functions inherited from QObject
static bool	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)
	Creates a connection of the given type from the signal in the sender object to the method in the receiver object. More...

static bool	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)
	Disconnects signal in object sender from method in object receiver. More...

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

static uint	registerUserData ()

static QString	tr (const char sourceText, const char comment=0, int n=-1)

static QString	trUtf8 (const char sourceText, const char comment=0, int n=-1)

Static Public Variables inherited from QObject
static const QMetaObject	staticMetaObject
	This variable stores the meta-object for the class. More...

Protected Functions inherited from QAbstractItemDelegate
	QAbstractItemDelegate (QObjectPrivate &, QObject *parent=0)
	Creates a new abstract item delegate with the given parent. More...

Protected Functions inherited from QObject
virtual void	childEvent (QChildEvent *)
	This event handler can be reimplemented in a subclass to receive child events. More...

virtual void	connectNotify (const char *signal)
	This virtual function is called when something has been connected to signal in this object. More...

virtual void	customEvent (QEvent *)
	This event handler can be reimplemented in a subclass to receive custom events. More...

virtual void	disconnectNotify (const char *signal)
	This virtual function is called when something has been disconnected from signal in this object. More...

	QObject (QObjectPrivate &dd, QObject *parent=0)

int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal. More...

QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns 0. More...

int	senderSignalIndex () const

virtual void	timerEvent (QTimerEvent *)
	This event handler can be reimplemented in a subclass to receive timer events for the object. More...

Protected Variables inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Static Protected Variables inherited from QObject
static const QMetaObject	staticQtMetaObject

Related Functions inherited from QObject
T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QRegExp &regExp)()

T *	qobject_cast (QObject *object)

	QObjectList

void *	qt_find_obj_child (QObject parent, const char type, const QString &name)
	Returns a pointer to the object named name that inherits type and with a given parent. More...

Detailed Description

Definition at line 101 of file qfontcombobox.cpp.

Constructors and Destructors

◆ QFontFamilyDelegate()

QFontFamilyDelegate::QFontFamilyDelegate ( QObject * parent )

explicit

Definition at line 120 of file qfontcombobox.cpp.

     : QAbstractItemDelegate(parent)
 {
     truetype = QIcon(QLatin1String(":/trolltech/styles/commonstyle/images/fonttruetype-16.png"));
     bitmap = QIcon(QLatin1String(":/trolltech/styles/commonstyle/images/fontbitmap-16.png"));
     writingSystem = QFontDatabase::Any;
 }

Functions

◆ paint()

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

virtual

This pure abstract function must be reimplemented if you want to provide custom rendering.

Use the painter and style option to render the item specified by the item index.

If you reimplement this you must also reimplement sizeHint().

Implements QAbstractItemDelegate.

Definition at line 128 of file qfontcombobox.cpp.

 {
     QString text = index.data(Qt::DisplayRole).toString();
     QFont font(option.font);
     font.setPointSize(QFontInfo(font).pointSize() * 3 / 2);
     QFont font2 = font;
     font2.setFamily(text);
 
     bool hasLatin;
     QFontDatabase::WritingSystem system = writingSystemForFont(font2, &hasLatin);
     if (hasLatin)
         font = font2;
 
     QRect r = option.rect;
 
     if (option.state & QStyle::State_Selected) {
         painter->save();
         painter->setBrush(option.palette.highlight());
         painter->setPen(Qt::NoPen);
         painter->drawRect(option.rect);
         painter->setPen(QPen(option.palette.highlightedText(), 0));
     }
 
     const QIcon *icon = &bitmap;
     if (QFontDatabase().isSmoothlyScalable(text)) {
         icon = &truetype;
     }
     QSize actualSize = icon->actualSize(r.size());
 
     icon->paint(painter, r, Qt::AlignLeft|Qt::AlignVCenter);
     if (option.direction == Qt::RightToLeft)
         r.setRight(r.right() - actualSize.width() - 4);
     else
         r.setLeft(r.left() + actualSize.width() + 4);
 
     QFont old = painter->font();
     painter->setFont(font);
 
     // If the ascent of the font is larger than the height of the rect,
     // we will clip the text, so it's better to align the tight bounding rect in this case
     // This is specifically for fonts where the ascent is very large compared to
     // the descent, like certain of the Stix family.
     QFontMetricsF fontMetrics(font);
     if (fontMetrics.ascent() > r.height()) {
         QRectF tbr = fontMetrics.tightBoundingRect(text);
         painter->drawText(r.x(), r.y() + (r.height() + tbr.height()) / 2.0, text);
     } else {
         painter->drawText(r, Qt::AlignVCenter|Qt::AlignLeading|Qt::TextSingleLine, text);
     }
 
     if (writingSystem != QFontDatabase::Any)
         system = writingSystem;
 
     if (system != QFontDatabase::Any) {
         int w = painter->fontMetrics().width(text + QLatin1String("  "));
         painter->setFont(font2);
         QString sample = QFontDatabase().writingSystemSample(system);
         if (option.direction == Qt::RightToLeft)
             r.setRight(r.right() - w);
         else
             r.setLeft(r.left() + w);
         painter->drawText(r, Qt::AlignVCenter|Qt::AlignLeading|Qt::TextSingleLine, sample);
     }
     painter->setFont(old);
 
     if (option.state & QStyle::State_Selected)
         painter->restore();
 
 }

◆ sizeHint()

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

virtual

This pure abstract function must be reimplemented if you want to provide custom rendering.

The options are specified by option and the model item by index.

If you reimplement this you must also reimplement paint().

Implements QAbstractItemDelegate.

Definition at line 200 of file qfontcombobox.cpp.

 {
     QString text = index.data(Qt::DisplayRole).toString();
     QFont font(option.font);
 //     font.setFamily(text);
     font.setPointSize(QFontInfo(font).pointSize() * 3/2);
     QFontMetrics fontMetrics(font);
     return QSize(fontMetrics.width(text), fontMetrics.height());
 }

Properties

◆ bitmap

QIcon QFontFamilyDelegate::bitmap

Definition at line 116 of file qfontcombobox.cpp.

Referenced by paint(), and QFontFamilyDelegate().

◆ truetype

QIcon QFontFamilyDelegate::truetype

Definition at line 115 of file qfontcombobox.cpp.

Referenced by paint(), and QFontFamilyDelegate().

◆ writingSystem

QFontDatabase::WritingSystem QFontFamilyDelegate::writingSystem

Definition at line 117 of file qfontcombobox.cpp.

Referenced by QFontComboBoxPrivate::_q_updateModel(), paint(), QFontFamilyDelegate(), and QFontComboBox::setWritingSystem().

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

/src/gui/widgets/qfontcombobox.cpp

Public Functions

Public Variables

Additional Inherited Members