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| QFriendlyLayout () |
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| QFriendlyLayout () |
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| QLayout (QWidget *parent=nullptr) |
| Constructs a new top-level QLayout, with parent parent.
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| ~QLayout () |
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virtual int | spacing () const |
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virtual void | setSpacing (int) |
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void | setContentsMargins (int left, int top, int right, int bottom) |
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void | setContentsMargins (const QMargins &margins) |
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void | unsetContentsMargins () |
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void | getContentsMargins (int *left, int *top, int *right, int *bottom) const |
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QMargins | contentsMargins () const |
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QRect | contentsRect () const |
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bool | setAlignment (QWidget *w, Qt::Alignment alignment) |
| Sets the alignment for widget w to alignment and returns true if w is found in this layout (not including child layouts); otherwise returns false .
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bool | setAlignment (QLayout *l, Qt::Alignment alignment) |
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Sets the alignment for the layout l to alignment and returns true if l is found in this layout (not including child layouts); otherwise returns false .
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void | setSizeConstraint (SizeConstraint) |
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SizeConstraint | sizeConstraint () const |
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void | setMenuBar (QWidget *w) |
| Tells the geometry manager to place the menu bar widget at the top of parentWidget(), outside QWidget::contentsMargins().
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QWidget * | menuBar () const |
| Returns the menu bar set for this layout, or \nullptr if no menu bar is set.
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QWidget * | parentWidget () const |
| Returns the parent widget of this layout, or \nullptr if this layout is not installed on any widget.
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void | invalidate () override |
| \reimp
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QRect | geometry () const override |
| \reimp
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bool | activate () |
| Redoes the layout for parentWidget() if necessary.
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void | update () |
| Updates the layout for parentWidget().
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void | addWidget (QWidget *w) |
| Adds widget w to this layout in a manner specific to the layout.
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virtual void | addItem (QLayoutItem *)=0 |
| Implemented in subclasses to add an item.
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void | removeWidget (QWidget *w) |
| Removes the widget widget from the layout.
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void | removeItem (QLayoutItem *) |
| Removes the layout item item from the layout.
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Qt::Orientations | expandingDirections () const override |
| Returns whether this layout can make use of more space than sizeHint().
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QSize | minimumSize () const override |
| Returns the minimum size of this layout.
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QSize | maximumSize () const override |
| Returns the maximum size of this layout.
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virtual void | setGeometry (const QRect &) override |
| \reimp
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virtual QLayoutItem * | itemAt (int index) const =0 |
| Must be implemented in subclasses to return the layout item at index.
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virtual QLayoutItem * | takeAt (int index)=0 |
| Must be implemented in subclasses to remove the layout item at index from the layout, and return the item.
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virtual int | indexOf (const QWidget *) const |
| Searches for widget widget in this layout (not including child layouts).
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virtual int | indexOf (const QLayoutItem *) const |
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virtual int | count () const =0 |
| Must be implemented in subclasses to return the number of items in the layout.
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bool | isEmpty () const override |
| \reimp
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QSizePolicy::ControlTypes | controlTypes () const override |
| \reimp
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virtual QLayoutItem * | replaceWidget (QWidget *from, QWidget *to, Qt::FindChildOptions options=Qt::FindChildrenRecursively) |
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int | totalMinimumHeightForWidth (int w) const |
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int | totalHeightForWidth (int w) const |
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QSize | totalMinimumSize () const |
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QSize | totalMaximumSize () const |
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QSize | totalSizeHint () const |
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QLayout * | layout () override |
| \reimp
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void | setEnabled (bool) |
| Enables this layout if enable is true, otherwise disables it.
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bool | isEnabled () const |
| Returns true if the layout is enabled; otherwise returns false .
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void | setAlignment (Qt::Alignment a) |
| Sets the alignment of this item to alignment.
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Q_INVOKABLE | QObject (QObject *parent=nullptr) |
| Constructs an object with parent object parent.
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virtual | ~QObject () |
| Destroys the object, deleting all its child objects.
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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.
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virtual bool | eventFilter (QObject *watched, QEvent *event) |
| Filters events if this object has been installed as an event filter for the watched object.
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QString | objectName () const |
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Q_WEAK_OVERLOAD void | setObjectName (const QString &name) |
| Sets the object's name to name.
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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.
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QBindable< QString > | bindableObjectName () |
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bool | isWidgetType () const |
| Returns true if the object is a widget; otherwise returns false .
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bool | isWindowType () const |
| Returns true if the object is a window; otherwise returns false .
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bool | isQuickItemType () const |
| Returns true if the object is a QQuickItem; otherwise returns false .
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bool | signalsBlocked () const noexcept |
| Returns true if signals are blocked; otherwise returns false .
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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).
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QThread * | thread () const |
| Returns the thread in which the object lives.
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bool | moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL) |
| Changes the thread affinity for this object and its children and returns true on success.
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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.
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int | startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer) |
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void | killTimer (int id) |
| Kills the timer with timer identifier, id.
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void | killTimer (Qt::TimerId id) |
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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.
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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.
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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.
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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.
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const QObjectList & | children () const |
| Returns a list of child objects.
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void | setParent (QObject *parent) |
| Makes the object a child of parent.
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void | installEventFilter (QObject *filterObj) |
| Installs an event filter filterObj on this object.
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void | removeEventFilter (QObject *obj) |
| Removes an event filter object obj from this object.
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QMetaObject::Connection | connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const |
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bool | disconnect (const char *signal=nullptr, const QObject *receiver=nullptr, const char *member=nullptr) const |
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bool | disconnect (const QObject *receiver, const char *member=nullptr) const |
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void | dumpObjectTree () const |
| Dumps a tree of children to the debug output.
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void | dumpObjectInfo () const |
| Dumps information about signal connections, etc.
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bool | setProperty (const char *name, const QVariant &value) |
| Sets the value of the object's name property to value.
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bool | setProperty (const char *name, QVariant &&value) |
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QVariant | property (const char *name) const |
| Returns the value of the object's name property.
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QList< QByteArray > | dynamicPropertyNames () const |
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QBindingStorage * | bindingStorage () |
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const QBindingStorage * | bindingStorage () const |
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QObject * | parent () const |
| Returns a pointer to the parent object.
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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 .
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| QLayoutItem (Qt::Alignment alignment=Qt::Alignment()) |
| Constructs a layout item with an alignment.
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virtual | ~QLayoutItem () |
| Destroys the QLayoutItem.
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virtual QSize | sizeHint () const =0 |
| Implemented in subclasses to return the preferred size of this item.
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virtual bool | hasHeightForWidth () const |
| Returns true if this layout's preferred height depends on its width; otherwise returns false .
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virtual int | heightForWidth (int) const |
| Returns the preferred height for this layout item, given the width, which is not used in this default implementation.
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virtual int | minimumHeightForWidth (int) const |
| Returns the minimum height this widget needs for the given width, w.
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virtual QWidget * | widget () const |
| If this item manages a QWidget, returns that widget.
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virtual QSpacerItem * | spacerItem () |
| If this item is a QSpacerItem, it is returned as a QSpacerItem; otherwise \nullptr is returned.
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Qt::Alignment | alignment () const |
| Returns the alignment of this item.
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void | setAlignment (Qt::Alignment a) |
| Sets the alignment of this item to alignment.
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enum | SizeConstraint {
SetDefaultConstraint
, SetNoConstraint
, SetMinimumSize
, SetFixedSize
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SetMaximumSize
, SetMinAndMaxSize
} |
| The possible values are: More...
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void | deleteLater () |
| \threadsafe
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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.
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void | objectNameChanged (const QString &objectName, QPrivateSignal) |
| This signal is emitted after the object's name has been changed.
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static QSize | closestAcceptableSize (const QWidget *w, const QSize &s) |
| Returns a size that satisfies all size constraints on widget, including heightForWidth() and that is as close as possible to size.
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static QMetaObject::Connection | connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection) |
| \threadsafe
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static QMetaObject::Connection | connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection) |
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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) |
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template<typename Func1 , typename Func2 > |
static QMetaObject::Connection | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot) |
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static bool | disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member) |
| \threadsafe
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static bool | disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member) |
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static bool | disconnect (const QMetaObject::Connection &) |
| Disconnect a connection.
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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) |
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template<typename Func1 > |
static bool | disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *receiver, void **zero) |
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void | widgetEvent (QEvent *) |
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void | childEvent (QChildEvent *e) override |
| \reimp
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void | addChildLayout (QLayout *l) |
| This function is called from addLayout() or insertLayout() functions in subclasses to add layout childLayout as a sub-layout.
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void | addChildWidget (QWidget *w) |
| This function is called from addWidget() functions in subclasses to add w as a managed widget of a layout.
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bool | adoptLayout (QLayout *layout) |
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QRect | alignmentRect (const QRect &) const |
| Returns the rectangle that should be covered when the geometry of this layout is set to r, provided that this layout supports setAlignment().
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| QLayout (QLayoutPrivate &d, QLayout *, QWidget *) |
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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.
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int | senderSignalIndex () const |
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int | receivers (const char *signal) const |
| Returns the number of receivers connected to the signal.
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bool | isSignalConnected (const QMetaMethod &signal) const |
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virtual void | timerEvent (QTimerEvent *event) |
| This event handler can be reimplemented in a subclass to receive timer events for the object.
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virtual void | customEvent (QEvent *event) |
| This event handler can be reimplemented in a subclass to receive custom events.
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virtual void | connectNotify (const QMetaMethod &signal) |
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virtual void | disconnectNotify (const QMetaMethod &signal) |
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| QObject (QObjectPrivate &dd, QObject *parent=nullptr) |
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QScopedPointer< QObjectData > | d_ptr |
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Qt::Alignment | align |
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int | spacing |
| the spacing between widgets inside the layout
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QMargins | contentsMargins |
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SizeConstraint | sizeConstraint |
| the resize mode of the layout
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QString | objectName |
| the name of this object
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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.
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template< typename T > T | qFindChildqFindChildren (const QObject *obj, const QString &name)() |
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template< typename T > QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QString &name)() |
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| QObjectList |
| \macro Q_CLASSINFO(Name, Value)
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