Qt
Internal/Contributor docs for the Qt SDK. Note: These are NOT official API docs; those are found at https://doc.qt.io/
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#include <qquickoverlay_p.h>
Public Member Functions | |
QQuickOverlay (QQuickItem *parent=nullptr) | |
~QQuickOverlay () | |
QQmlComponent * | modal () const |
void | setModal (QQmlComponent *modal) |
QQmlComponent * | modeless () const |
void | setModeless (QQmlComponent *modeless) |
Public Member Functions inherited from QQuickItem | |
QQuickItem (QQuickItem *parent=nullptr) | |
Constructs a QQuickItem with the given parent. | |
~QQuickItem () override | |
Destroys the QQuickItem. | |
QQuickWindow * | window () const |
Returns the window in which this item is rendered. | |
QQuickItem * | parentItem () const |
void | setParentItem (QQuickItem *parent) |
void | stackBefore (const QQuickItem *) |
Moves the specified sibling item to the index before this item within the list of children. | |
void | stackAfter (const QQuickItem *) |
Moves the specified sibling item to the index after this item within the list of children. | |
QRectF | childrenRect () |
\qmlpropertygroup QtQuick::Item::childrenRect \qmlproperty real QtQuick::Item::childrenRect.x \qmlproperty real QtQuick::Item::childrenRect.y \qmlproperty real QtQuick::Item::childrenRect.width \qmlproperty real QtQuick::Item::childrenRect.height \readonly | |
QList< QQuickItem * > | childItems () const |
Returns the children of this item. | |
bool | clip () const |
\qmlproperty bool QtQuick::Item::clip This property holds whether clipping is enabled. | |
void | setClip (bool) |
QString | state () const |
\qmlproperty string QtQuick::Item::state | |
void | setState (const QString &) |
qreal | baselineOffset () const |
\qmlproperty int QtQuick::Item::baselineOffset | |
void | setBaselineOffset (qreal) |
QQmlListProperty< QQuickTransform > | transform () |
qreal | x () const |
qreal | y () const |
QPointF | position () const |
void | setX (qreal) |
void | setY (qreal) |
void | setPosition (const QPointF &) |
QBindable< qreal > | bindableX () |
QBindable< qreal > | bindableY () |
qreal | width () const |
void | setWidth (qreal) |
void | resetWidth () |
void | setImplicitWidth (qreal) |
qreal | implicitWidth () const |
Returns the width of the item that is implied by other properties that determine the content. | |
QBindable< qreal > | bindableWidth () |
qreal | height () const |
void | setHeight (qreal) |
void | resetHeight () |
void | setImplicitHeight (qreal) |
qreal | implicitHeight () const |
QBindable< qreal > | bindableHeight () |
QSizeF | size () const |
void | setSize (const QSizeF &size) |
TransformOrigin | transformOrigin () const |
void | setTransformOrigin (TransformOrigin) |
QPointF | transformOriginPoint () const |
void | setTransformOriginPoint (const QPointF &) |
qreal | z () const |
void | setZ (qreal) |
qreal | rotation () const |
void | setRotation (qreal) |
qreal | scale () const |
void | setScale (qreal) |
qreal | opacity () const |
void | setOpacity (qreal) |
bool | isVisible () const |
void | setVisible (bool) |
bool | isEnabled () const |
void | setEnabled (bool) |
bool | smooth () const |
void | setSmooth (bool) |
bool | activeFocusOnTab () const |
\qmlproperty bool QtQuick::Item::activeFocusOnTab | |
void | setActiveFocusOnTab (bool) |
bool | antialiasing () const |
void | setAntialiasing (bool) |
void | resetAntialiasing () |
Flags | flags () const |
Returns the item flags for this item. | |
void | setFlag (Flag flag, bool enabled=true) |
Enables the specified flag for this item if enabled is true; if enabled is false, the flag is disabled. | |
void | setFlags (Flags flags) |
Enables the specified flags for this item. | |
virtual QRectF | boundingRect () const |
Returns the extents of the item in its own coordinate system: a rectangle from {0, 0} to \l width() and \l height(). | |
virtual QRectF | clipRect () const |
Returns the rectangular area within this item that is currently visible in \l viewportItem(), if there is a viewport and the \l ItemObservesViewport flag is set; otherwise, the extents of this item in its own coordinate system: a rectangle from {0, 0} to \l width() and \l height(). | |
QQuickItem * | viewportItem () const |
If the \l ItemObservesViewport flag is set, returns the nearest parent with the \l ItemIsViewport flag. | |
bool | hasActiveFocus () const |
bool | hasFocus () const |
void | setFocus (bool) |
void | setFocus (bool focus, Qt::FocusReason reason) |
bool | isFocusScope () const |
Returns true if this item is a focus scope, and false otherwise. | |
QQuickItem * | scopedFocusItem () const |
If this item is a focus scope, this returns the item in its focus chain that currently has focus. | |
Qt::FocusPolicy | focusPolicy () const |
void | setFocusPolicy (Qt::FocusPolicy policy) |
Sets the focus policy of this item to policy. | |
bool | isAncestorOf (const QQuickItem *child) const |
Returns true if this item is an ancestor of child (i.e., if this item is child's parent, or one of child's parent's ancestors). | |
Qt::MouseButtons | acceptedMouseButtons () const |
Returns the mouse buttons accepted by this item. | |
void | setAcceptedMouseButtons (Qt::MouseButtons buttons) |
Sets the mouse buttons accepted by this item to buttons. | |
bool | acceptHoverEvents () const |
Returns whether hover events are accepted by this item. | |
void | setAcceptHoverEvents (bool enabled) |
If enabled is true, this sets the item to accept hover events; otherwise, hover events are not accepted by this item. | |
bool | acceptTouchEvents () const |
Returns whether touch events are accepted by this item. | |
void | setAcceptTouchEvents (bool accept) |
If enabled is true, this sets the item to accept touch events; otherwise, touch events are not accepted by this item. | |
bool | isUnderMouse () const |
void | grabMouse () |
void | ungrabMouse () |
bool | keepMouseGrab () const |
Returns whether mouse input should exclusively remain with this item. | |
void | setKeepMouseGrab (bool) |
Sets whether the mouse input should remain exclusively with this item. | |
bool | filtersChildMouseEvents () const |
Returns whether pointer events intended for this item's children should be filtered through this item. | |
void | setFiltersChildMouseEvents (bool filter) |
Sets whether pointer events intended for this item's children should be filtered through this item. | |
void | grabTouchPoints (const QList< int > &ids) |
void | ungrabTouchPoints () |
bool | keepTouchGrab () const |
Returns whether the touch points grabbed by this item should exclusively remain with this item. | |
void | setKeepTouchGrab (bool) |
Sets whether the touch points grabbed by this item should remain exclusively with this item. | |
Q_REVISION (2, 4) Q_INVOKABLE bool grabToImage(const QJSValue &callback | |
QSharedPointer< QQuickItemGrabResult > | grabToImage (const QSize &targetSize=QSize()) |
Grabs the item into an in-memory image. | |
virtual Q_INVOKABLE bool | contains (const QPointF &point) const |
\qmlmethod bool QtQuick::Item::contains(point point) | |
QObject * | containmentMask () const |
void | setContainmentMask (QObject *mask) |
QTransform | itemTransform (QQuickItem *, bool *) const |
\qmlmethod point QtQuick::Item::mapFromItem(Item item, real x, real y) \qmlmethod point QtQuick::Item::mapFromItem(Item item, point p) \qmlmethod rect QtQuick::Item::mapFromItem(Item item, real x, real y, real width, real height) \qmlmethod rect QtQuick::Item::mapFromItem(Item item, rect r) | |
QPointF | mapToScene (const QPointF &point) const |
Maps the given point in this item's coordinate system to the equivalent point within the scene's coordinate system, and returns the mapped coordinate. | |
QRectF | mapRectToItem (const QQuickItem *item, const QRectF &rect) const |
Maps the given rect in this item's coordinate system to the equivalent rectangular area within item's coordinate system, and returns the mapped rectangle value. | |
QRectF | mapRectToScene (const QRectF &rect) const |
Maps the given rect in this item's coordinate system to the equivalent rectangular area within the scene's coordinate system, and returns the mapped rectangle value. | |
QPointF | mapFromScene (const QPointF &point) const |
Maps the given point in the scene's coordinate system to the equivalent point within this item's coordinate system, and returns the mapped coordinate. | |
QRectF | mapRectFromItem (const QQuickItem *item, const QRectF &rect) const |
Maps the given rect in item's coordinate system to the equivalent rectangular area within this item's coordinate system, and returns the mapped rectangle value. | |
QRectF | mapRectFromScene (const QRectF &rect) const |
Maps the given rect in the scene's coordinate system to the equivalent rectangular area within this item's coordinate system, and returns the mapped rectangle value. | |
void | polish () |
Schedules a polish event for this item. | |
Q_INVOKABLE QPointF | mapFromItem (const QQuickItem *item, const QPointF &point) const |
Maps the given point in item's coordinate system to the equivalent point within this item's coordinate system, and returns the mapped coordinate. | |
Q_INVOKABLE QPointF | mapFromItem (const QQuickItem *item, qreal x, qreal y) |
Q_INVOKABLE QRectF | mapFromItem (const QQuickItem *item, const QRectF &rect) const |
Q_INVOKABLE QRectF | mapFromItem (const QQuickItem *item, qreal x, qreal y, qreal width, qreal height) const |
Q_INVOKABLE QPointF | mapToItem (const QQuickItem *item, const QPointF &point) const |
Maps the given point in this item's coordinate system to the equivalent point within item's coordinate system, and returns the mapped coordinate. | |
Q_INVOKABLE QPointF | mapToItem (const QQuickItem *item, qreal x, qreal y) |
Q_INVOKABLE QRectF | mapToItem (const QQuickItem *item, const QRectF &rect) const |
Q_INVOKABLE QRectF | mapToItem (const QQuickItem *item, qreal x, qreal y, qreal width, qreal height) const |
Q_REVISION (2, 7) Q_INVOKABLE QPointF mapFromGlobal(qreal x | |
Q_REVISION (2, 7) Q_INVOKABLE QPointF mapFromGlobal(const QPointF &point) const | |
Q_REVISION (2, 7) Q_INVOKABLE QPointF mapToGlobal(qreal x | |
Q_REVISION (2, 7) Q_INVOKABLE QPointF mapToGlobal(const QPointF &point) const | |
Q_INVOKABLE void | forceActiveFocus () |
\qmlmethod point QtQuick::Item::mapToItem(Item item, real x, real y) \qmlmethod point QtQuick::Item::mapToItem(Item item, point p) \qmlmethod rect QtQuick::Item::mapToItem(Item item, real x, real y, real width, real height) \qmlmethod rect QtQuick::Item::mapToItem(Item item, rect r) | |
Q_INVOKABLE void | forceActiveFocus (Qt::FocusReason reason) |
\qmlmethod QtQuick::Item::forceActiveFocus(Qt::FocusReason reason) This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Forces active focus on the item with the given reason. | |
Q_REVISION (2, 1) Q_INVOKABLE QQuickItem *nextItemInFocusChain(bool forward | |
Q_INVOKABLE QQuickItem * | childAt (qreal x, qreal y) const |
\qmlmethod QtQuick::Item::childAt(real x, real y) | |
Q_REVISION (6, 3) Q_INVOKABLE void ensurePolished() | |
Q_REVISION (6, 3) Q_INVOKABLE void dumpItemTree() const | |
virtual bool | isTextureProvider () const |
Returns true if this item is a texture provider. | |
virtual QSGTextureProvider * | textureProvider () const |
Returns the texture provider for an item. | |
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. | |
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 QQmlParserStatus | |
QQmlParserStatus () | |
virtual | ~QQmlParserStatus () |
Static Public Member Functions | |
static QQuickOverlay * | overlay (QQuickWindow *window) |
static QQuickOverlayAttached * | qmlAttachedProperties (QObject *object) |
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) |
Protected Member Functions | |
void | itemChange (ItemChange change, const ItemChangeData &data) override |
Called when change occurs for this item. | |
void | geometryChange (const QRectF &newGeometry, const QRectF &oldGeometry) override |
void | mousePressEvent (QMouseEvent *event) override |
This event handler can be reimplemented in a subclass to receive mouse press events for an item. | |
void | mouseMoveEvent (QMouseEvent *event) override |
This event handler can be reimplemented in a subclass to receive mouse move events for an item. | |
void | mouseReleaseEvent (QMouseEvent *event) override |
This event handler can be reimplemented in a subclass to receive mouse release events for an item. | |
bool | childMouseEventFilter (QQuickItem *item, QEvent *event) override |
Reimplement this method to filter the pointer events that are received by this item's children. | |
bool | eventFilter (QObject *object, QEvent *event) override |
Filters events if this object has been installed as an event filter for the watched object. | |
Protected Member Functions inherited from QQuickItem | |
bool | event (QEvent *) override |
\reimp | |
bool | isComponentComplete () const |
Returns true if construction of the QML component is complete; otherwise returns false. | |
bool | widthValid () const |
Returns whether the width property has been set explicitly. | |
bool | heightValid () const |
Returns whether the height property has been set explicitly. | |
void | setImplicitSize (qreal, qreal) |
void | classBegin () override |
\reimp Derived classes should call the base class method before adding their own action to perform at classBegin. | |
void | componentComplete () override |
\reimp Derived classes should call the base class method before adding their own actions to perform at componentComplete. | |
virtual void | keyPressEvent (QKeyEvent *event) |
This event handler can be reimplemented in a subclass to receive key press events for an item. | |
virtual void | keyReleaseEvent (QKeyEvent *event) |
This event handler can be reimplemented in a subclass to receive key release events for an item. | |
virtual void | focusInEvent (QFocusEvent *) |
This event handler can be reimplemented in a subclass to receive focus-in events for an item. | |
virtual void | focusOutEvent (QFocusEvent *) |
This event handler can be reimplemented in a subclass to receive focus-out events for an item. | |
virtual void | mouseDoubleClickEvent (QMouseEvent *event) |
This event handler can be reimplemented in a subclass to receive mouse double-click events for an item. | |
virtual void | mouseUngrabEvent () |
This event handler can be reimplemented in a subclass to be notified when a mouse ungrab event has occurred on this item. | |
virtual void | touchUngrabEvent () |
This event handler can be reimplemented in a subclass to be notified when a touch ungrab event has occurred on this item. | |
virtual void | touchEvent (QTouchEvent *event) |
This event handler can be reimplemented in a subclass to receive touch events for an item. | |
virtual void | hoverEnterEvent (QHoverEvent *event) |
This event handler can be reimplemented in a subclass to receive hover-enter events for an item. | |
virtual void | hoverMoveEvent (QHoverEvent *event) |
This event handler can be reimplemented in a subclass to receive hover-move events for an item. | |
virtual void | hoverLeaveEvent (QHoverEvent *event) |
This event handler can be reimplemented in a subclass to receive hover-leave events for an item. | |
virtual QSGNode * | updatePaintNode (QSGNode *, UpdatePaintNodeData *) |
Called on the render thread when it is time to sync the state of the item with the scene graph. | |
virtual void | releaseResources () |
This function is called when an item should release graphics resources which are not already managed by the nodes returned from QQuickItem::updatePaintNode(). | |
virtual void | updatePolish () |
This function should perform any layout as required for this item. | |
QQuickItem (QQuickItemPrivate &dd, QQuickItem *parent=nullptr) | |
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) | |
Properties | |
QQmlComponent * | modal |
QQmlComponent * | modeless |
Properties inherited from QQuickItem | |
QQuickItem * | parent |
\qmlproperty Item QtQuick::Item::parent This property holds the visual parent of the item. | |
qreal | x |
\qmlproperty real QtQuick::Item::x \qmlproperty real QtQuick::Item::y \qmlproperty real QtQuick::Item::width \qmlproperty real QtQuick::Item::height | |
qreal | y |
Defines the item's y position relative to its parent. | |
qreal | z |
\qmlproperty real QtQuick::Item::z | |
qreal | width |
This property holds the width of this item. | |
qreal | height |
This property holds the height of this item. | |
qreal | opacity |
\qmlproperty real QtQuick::Item::opacity | |
bool | enabled |
\qmlproperty bool QtQuick::Item::enabled | |
bool | visible |
\qmlproperty bool QtQuick::Item::visible | |
Qt::FocusPolicy | focusPolicy |
\qmlproperty enumeration QtQuick::Item::focusPolicy | |
qreal | rotation |
\qmlproperty real QtQuick::Item::rotation This property holds the rotation of the item in degrees clockwise around its transformOrigin. | |
qreal | scale |
\qmlproperty real QtQuick::Item::scale This property holds the scale factor for this item. | |
TransformOrigin | transformOrigin |
\qmlproperty enumeration QtQuick::Item::transformOrigin This property holds the origin point around which scale and rotation transform. | |
QPointF | transformOriginPoint |
QQmlListProperty< QQuickTransform > | transform |
\qmlproperty list<Transform> QtQuick::Item::transform This property holds the list of transformations to apply. | |
bool | smooth |
\qmlproperty bool QtQuick::Item::smooth | |
bool | antialiasing |
\qmlproperty bool QtQuick::Item::antialiasing | |
qreal | implicitWidth |
qreal | implicitHeight |
QObject * | containmentMask |
\qmlproperty QObject* QtQuick::Item::containmentMask | |
Properties inherited from QObject | |
QString | objectName |
the name of this object | |
Definition at line 28 of file qquickoverlay_p.h.
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explicit |
Definition at line 309 of file qquickoverlay.cpp.
QQuickOverlay::~QQuickOverlay | ( | ) |
Definition at line 332 of file qquickoverlay.cpp.
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overrideprotectedvirtual |
Reimplement this method to filter the pointer events that are received by this item's children.
This method will only be called if filtersChildMouseEvents() is true
.
Return true
if the specified event should not be passed on to the specified child item, and false
otherwise. If you return true
, you should also \l {QEvent::accept()}{accept} or \l {QEvent::ignore()}{ignore} the event, to signal if event propagation should stop or continue. The event will, however, always be sent to all childMouseEventFilters up the parent chain.
event->type()
and/or event->device()->type()
to handle different event types in different ways.Reimplemented from QQuickItem.
Definition at line 464 of file qquickoverlay.cpp.
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:
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.
Reimplemented from QObject.
Definition at line 518 of file qquickoverlay.cpp.
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overrideprotectedvirtual |
This function is called to handle this item's changes in geometry from oldGeometry to newGeometry. If the two geometries are the same, it doesn't do anything.
Derived classes must call the base class method within their implementation.
Reimplemented from QQuickItem.
Definition at line 412 of file qquickoverlay.cpp.
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overrideprotectedvirtual |
Called when change occurs for this item.
value contains extra information relating to the change, when applicable.
If you re-implement this method in a subclass, be sure to call
typically at the end of your implementation, to ensure the \l windowChanged() signal will be emitted.
Reimplemented from QQuickItem.
Definition at line 400 of file qquickoverlay.cpp.
QQmlComponent * QQuickOverlay::modal | ( | ) | const |
Definition at line 344 of file qquickoverlay.cpp.
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signal |
QQmlComponent * QQuickOverlay::modeless | ( | ) | const |
Definition at line 360 of file qquickoverlay.cpp.
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signal |
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overrideprotectedvirtual |
This event handler can be reimplemented in a subclass to receive mouse move events for an item.
The event information is provided by the event parameter.
In order to receive mouse movement events, the preceding mouse press event must be accepted (by overriding \l mousePressEvent(), for example) and \l acceptedMouseButtons() must return the relevant mouse button.
\input item.qdocinc accepting-events
Reimplemented from QQuickItem.
Definition at line 426 of file qquickoverlay.cpp.
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overrideprotectedvirtual |
This event handler can be reimplemented in a subclass to receive mouse press events for an item.
The event information is provided by the event parameter.
In order to receive mouse press events, \l acceptedMouseButtons() must return the relevant mouse button.
\input item.qdocinc accepting-events
Reimplemented from QQuickItem.
Definition at line 420 of file qquickoverlay.cpp.
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overrideprotectedvirtual |
This event handler can be reimplemented in a subclass to receive mouse release events for an item.
The event information is provided by the event parameter.
In order to receive mouse release events, the preceding mouse press event must be accepted (by overriding \l mousePressEvent(), for example) and \l acceptedMouseButtons() must return the relevant mouse button.
\input item.qdocinc accepting-events
Reimplemented from QQuickItem.
Definition at line 432 of file qquickoverlay.cpp.
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static |
Definition at line 376 of file qquickoverlay.cpp.
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signal |
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static |
Definition at line 395 of file qquickoverlay.cpp.
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signal |
void QQuickOverlay::setModal | ( | QQmlComponent * | modal | ) |
Definition at line 350 of file qquickoverlay.cpp.
void QQuickOverlay::setModeless | ( | QQmlComponent * | modeless | ) |
Definition at line 366 of file qquickoverlay.cpp.
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readwrite |
Definition at line 31 of file qquickoverlay_p.h.
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readwrite |
Definition at line 32 of file qquickoverlay_p.h.