#include <qdesigner_widgetitem_p.h>

Inheritance diagram for qdesigner_internal::QDesignerWidgetItem:

Collaboration diagram for qdesigner_internal::QDesignerWidgetItem:

Public Member Functions
	QDesignerWidgetItem (const QLayout containingLayout, QWidget w, Qt::Orientations o=Qt::Horizontal\|Qt::Vertical)

const QLayout *	containingLayout () const

QWidget *	constWidget () const

QSize	minimumSize () const override
	Implemented in subclasses to return the minimum size of this item.

QSize	sizeHint () const override
	Implemented in subclasses to return the preferred size of this item.

QSize	nonLaidOutMinSize () const

void	setNonLaidOutMinSize (const QSize &s)

QSize	nonLaidOutSizeHint () const

void	setNonLaidOutSizeHint (const QSize &s)

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

Public Member Functions inherited from QObject
Q_INVOKABLE	QObject (QObject *parent=nullptr)
	Constructs an object with parent object parent.

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

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

QString	objectName () const

Q_WEAK_OVERLOAD void	setObjectName (const QString &name)
	Sets the object's name to name.

void	setObjectName (QAnyStringView name)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

QBindable< QString >	bindableObjectName ()

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

bool	isWindowType () const
	Returns `true` if the object is a window; otherwise returns `false`.

bool	isQuickItemType () const
	Returns `true` if the object is a QQuickItem; otherwise returns `false`.

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

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

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

bool	moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL)
	Changes the thread affinity for this object and its children and returns `true` on success.

int	startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
	This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.

int	startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer)

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

void	killTimer (Qt::TimerId id)

template<typename T >
T	findChild (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.

template<typename T >
QList< T >	findChildren (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) 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.

template<typename T >
T	findChild (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

template<typename T >
QList< T >	findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

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

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

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

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

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

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

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

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

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

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

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

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

QList< QByteArray >	dynamicPropertyNames () const

QBindingStorage *	bindingStorage ()

const QBindingStorage *	bindingStorage () const

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

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`.

Public Member Functions inherited from QWidgetItemV2
	QWidgetItemV2 (QWidget *widget)

	~QWidgetItemV2 ()

QSize	sizeHint () const override
	\reimp

QSize	minimumSize () const override
	\reimp

QSize	maximumSize () const override
	\reimp

int	heightForWidth (int width) const override
	\reimp

Public Member Functions inherited from QWidgetItem
	QWidgetItem (QWidget *w)
	Creates an item containing the given widget.

	~QWidgetItem ()
	Destructor.

Qt::Orientations	expandingDirections () const override
	\reimp

bool	isEmpty () const override
	Returns `true` if the widget is hidden; otherwise returns `false`.

void	setGeometry (const QRect &) override
	\reimp

QRect	geometry () const override
	\reimp

QWidget *	widget () const override
	Returns the widget managed by this item.

bool	hasHeightForWidth () const override
	\reimp

int	minimumHeightForWidth (int) const override
	Returns the minimum height this widget needs for the given width, w.

QSizePolicy::ControlTypes	controlTypes () const override
	Returns the control type associated with the widget for which this size policy applies.

Public Member Functions inherited from QLayoutItem
	QLayoutItem (Qt::Alignment alignment=Qt::Alignment())
	Constructs a layout item with an alignment.

virtual	~QLayoutItem ()
	Destroys the QLayoutItem.

virtual void	invalidate ()
	Invalidates any cached information in this layout item.

virtual QLayout *	layout ()
	If this item is a QLayout, it is returned as a QLayout; otherwise \nullptr is returned.

virtual QSpacerItem *	spacerItem ()
	If this item is a QSpacerItem, it is returned as a QSpacerItem; otherwise \nullptr is returned.

Qt::Alignment	alignment () const
	Returns the alignment of this item.

void	setAlignment (Qt::Alignment a)
	Sets the alignment of this item to alignment.

Static Public Member Functions
static bool	check (const QLayout layout, QWidget w, Qt::Orientations *ptrToOrientations=nullptr)

static void	install ()

static void	deinstall ()

static bool	isContainer (const QDesignerFormEditorInterface core, QWidget w)

static bool	subjectToStretch (const QLayout layout, QWidget w)

Static Public Member Functions inherited from QObject
static QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)
	\threadsafe

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

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)
	\threadsafe

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

static bool	disconnect (const QMetaObject::Connection &)
	Disconnect a connection.

template<typename Func1 , typename Func2 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object receiver, Func2 slot)

template<typename Func1 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject receiver, void **zero)

Additional Inherited Members
Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe

Signals inherited from QObject
void	destroyed (QObject *=nullptr)
	This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.

void	objectNameChanged (const QString &objectName, QPrivateSignal)
	This signal is emitted after the object's name has been changed.

Protected Member Functions inherited from QObject
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 \nullptr.

int	senderSignalIndex () const

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

bool	isSignalConnected (const QMetaMethod &signal) const

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

virtual void	childEvent (QChildEvent *event)
	This event handler can be reimplemented in a subclass to receive child events.

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

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	disconnectNotify (const QMetaMethod &signal)

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

Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Protected Attributes inherited from QWidgetItem
QWidget *	wid

Protected Attributes inherited from QLayoutItem
Qt::Alignment	align

Properties inherited from QObject
QString	objectName
	the name of this object

Related Symbols inherited from QObject
template< class T > T	qobject_cast (const QObject *object)
	Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.

template< typename T > T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

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

	QObjectList
	\macro Q_CLASSINFO(Name, Value)

Detailed Description

Definition at line 44 of file qdesigner_widgetitem_p.h.

Constructor & Destructor Documentation

◆ QDesignerWidgetItem()

qdesigner_internal::QDesignerWidgetItem::QDesignerWidgetItem	(	const QLayout *	containingLayout,
		QWidget *	w,
		Qt::Orientations	o = Qt::Horizontal\|Qt::Vertical )

explicit

Definition at line 78 of file qdesigner_widgetitem.cpp.

Member Function Documentation

◆ check()

bool qdesigner_internal::QDesignerWidgetItem::check	(	const QLayout *	layout,
		QWidget *	w,
		Qt::Orientations *	ptrToOrientations = nullptr )

static

Definition at line 194 of file qdesigner_widgetitem.cpp.

◆ constWidget()

QWidget * qdesigner_internal::QDesignerWidgetItem::constWidget ( ) const

inline

Definition at line 52 of file qdesigner_widgetitem_p.h.

◆ containingLayout()

const QLayout * qdesigner_internal::QDesignerWidgetItem::containingLayout ( ) const

Definition at line 253 of file qdesigner_widgetitem.cpp.

◆ deinstall()

void qdesigner_internal::QDesignerWidgetItem::deinstall ( )

static

Definition at line 248 of file qdesigner_widgetitem.cpp.

◆ eventFilter()

bool qdesigner_internal::QDesignerWidgetItem::eventFilter	(	QObject *	watched,
		QEvent *	event )

overridevirtual

Filters events if this object has been installed as an event filter for the watched object.

In your reimplementation of this function, if you want to filter the event out, i.e. stop it being handled further, return true; otherwise return false.

Example:

class MainWindow : public QMainWindow
{
public:
    MainWindow();
 
protected:
    bool eventFilter(QObject *obj, QEvent *ev) override;
 
private:
    QTextEdit *textEdit;
};
 
MainWindow::MainWindow()
{
    textEdit = new QTextEdit;
    setCentralWidget(textEdit);
 
    textEdit->installEventFilter(this);
}
 
bool MainWindow::eventFilter(QObject *obj, QEvent *event)
{
    if (obj == textEdit) {
        if (event->type() == QEvent::KeyPress) {
            QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
            qDebug() << "Ate key press" << keyEvent->key();
            return true;
        } else {
            return false;
        }
    } else {
        // pass the event on to the parent class
        return QMainWindow::eventFilter(obj, event);
    }
}

Notice in the example above that unhandled events are passed to the base class's eventFilter() function, since the base class might have reimplemented eventFilter() for its own internal purposes.

Some events, such as \l QEvent::ShortcutOverride must be explicitly accepted (by calling \l {QEvent::}{accept()} on them) in order to prevent propagation.

Warning: If you delete the receiver object in this function, be sure to return true. Otherwise, Qt will forward the event to the deleted object and the program might crash.

See also: installEventFilter()

Reimplemented from QObject.

Definition at line 277 of file qdesigner_widgetitem.cpp.

◆ install()

void qdesigner_internal::QDesignerWidgetItem::install ( )

static

Definition at line 243 of file qdesigner_widgetitem.cpp.

◆ isContainer()

bool qdesigner_internal::QDesignerWidgetItem::isContainer	(	const QDesignerFormEditorInterface *	core,
		QWidget *	w )

static

Definition at line 181 of file qdesigner_widgetitem.cpp.

◆ minimumSize()

QSize qdesigner_internal::QDesignerWidgetItem::minimumSize ( ) const

overridevirtual

Implemented in subclasses to return the minimum size of this item.

Implements QLayoutItem.

Definition at line 107 of file qdesigner_widgetitem.cpp.

◆ nonLaidOutMinSize()

QSize qdesigner_internal::QDesignerWidgetItem::nonLaidOutMinSize ( ) const

Definition at line 219 of file qdesigner_widgetitem.cpp.

◆ nonLaidOutSizeHint()

QSize qdesigner_internal::QDesignerWidgetItem::nonLaidOutSizeHint ( ) const

Definition at line 231 of file qdesigner_widgetitem.cpp.

◆ setNonLaidOutMinSize()

void qdesigner_internal::QDesignerWidgetItem::setNonLaidOutMinSize ( const QSize & s )

Definition at line 224 of file qdesigner_widgetitem.cpp.

◆ setNonLaidOutSizeHint()

void qdesigner_internal::QDesignerWidgetItem::setNonLaidOutSizeHint ( const QSize & s )

Definition at line 236 of file qdesigner_widgetitem.cpp.

◆ sizeHint()

QSize qdesigner_internal::QDesignerWidgetItem::sizeHint ( ) const

overridevirtual

Implemented in subclasses to return the preferred size of this item.

Implements QLayoutItem.

Definition at line 123 of file qdesigner_widgetitem.cpp.

◆ subjectToStretch()

bool qdesigner_internal::QDesignerWidgetItem::subjectToStretch	(	const QLayout *	layout,
		QWidget *	w )

static

Definition at line 139 of file qdesigner_widgetitem.cpp.

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

qttools/src/designer/src/lib/shared/qdesigner_widgetitem_p.h (a5bb88c896170ec0c719c3a73ce932cb8d5205ca)
qttools/src/designer/src/lib/shared/qdesigner_widgetitem.cpp (a5bb88c896170ec0c719c3a73ce932cb8d5205ca)

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QDesignerWidgetItem()

Member Function Documentation

◆ check()

◆ constWidget()

◆ containingLayout()

◆ deinstall()

◆ eventFilter()

◆ install()

◆ isContainer()

◆ minimumSize()

◆ nonLaidOutMinSize()

◆ nonLaidOutSizeHint()

◆ setNonLaidOutMinSize()

◆ setNonLaidOutSizeHint()

◆ sizeHint()

◆ subjectToStretch()