Qt
Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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#include <qquickstateoperations_p.h>
Public Member Functions | |
QQuickParentChange (QObject *parent=nullptr) | |
\qmltype ParentChange \instantiates QQuickParentChange \inqmlmodule QtQuick | |
QQuickItem * | object () const |
\qmlproperty Item QtQuick::ParentChange::target This property holds the item to be reparented | |
void | setObject (QQuickItem *) |
QQuickItem * | parent () const |
\qmlproperty Item QtQuick::ParentChange::parent This property holds the new parent for the item in this state. | |
void | setParent (QQuickItem *) |
QQuickItem * | originalParent () const |
QQmlScriptString | x () const |
\qmlproperty real QtQuick::ParentChange::x \qmlproperty real QtQuick::ParentChange::y \qmlproperty real QtQuick::ParentChange::width \qmlproperty real QtQuick::ParentChange::height \qmlproperty real QtQuick::ParentChange::scale \qmlproperty real QtQuick::ParentChange::rotation These properties hold the new position, size, scale, and rotation for the item in this state. | |
void | setX (const QQmlScriptString &x) |
bool | xIsSet () const |
QQmlScriptString | y () const |
void | setY (const QQmlScriptString &y) |
bool | yIsSet () const |
QQmlScriptString | width () const |
void | setWidth (const QQmlScriptString &width) |
bool | widthIsSet () const |
QQmlScriptString | height () const |
void | setHeight (const QQmlScriptString &height) |
bool | heightIsSet () const |
QQmlScriptString | scale () const |
void | setScale (const QQmlScriptString &scale) |
bool | scaleIsSet () const |
QQmlScriptString | rotation () const |
void | setRotation (const QQmlScriptString &rotation) |
bool | rotationIsSet () const |
ActionList | actions () override |
void | saveOriginals () override |
void | execute () override |
bool | isReversable () override |
void | reverse () override |
EventType | type () const override |
bool | mayOverride (QQuickStateActionEvent *other) override |
void | rewind () override |
void | saveCurrentValues () override |
Public Member Functions inherited from QQuickStateOperation | |
QQuickStateOperation (QObject *parent=nullptr) | |
QQuickState * | state () const |
void | setState (QQuickState *state) |
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. | |
virtual bool | eventFilter (QObject *watched, QEvent *event) |
Filters events if this object has been installed as an event filter for the watched object. | |
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 QQuickStateActionEvent | |
virtual | ~QQuickStateActionEvent () |
virtual bool | needsCopy () |
virtual void | copyOriginals (QQuickStateActionEvent *) |
virtual bool | isRewindable () |
virtual void | saveTargetValues () |
virtual bool | changesBindings () |
virtual void | clearBindings () |
Properties | |
QQuickItem * | target |
QQuickItem * | parent |
QQmlScriptString | x |
QQmlScriptString | y |
QQmlScriptString | width |
QQmlScriptString | height |
QQmlScriptString | scale |
QQmlScriptString | rotation |
Properties inherited from QObject | |
QString | objectName |
the name of this object | |
Additional Inherited Members | |
Public Types inherited from QQuickStateOperation | |
typedef QList< QQuickStateAction > | ActionList |
Public Types inherited from QQuickStateActionEvent | |
enum | EventType { Script , SignalHandler , ParentChange , AnchorChanges } |
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. | |
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 inherited from QQuickStateOperation | |
QQuickStateOperation (QObjectPrivate &dd, QObject *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) | |
Protected Attributes inherited from QObject | |
QScopedPointer< QObjectData > | d_ptr |
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) | |
Definition at line 28 of file qquickstateoperations_p.h.
\qmltype ParentChange \instantiates QQuickParentChange \inqmlmodule QtQuick
Specifies how to reparent an Item in a state change.
ParentChange reparents an item while preserving its visual appearance (position, size, rotation, and scale) on screen. You can then specify a transition to move/resize/rotate/scale the item to its final intended appearance.
ParentChange can only preserve visual appearance if no complex transforms are involved. More specifically, it will not work if the transform property has been set for any items involved in the reparenting (i.e. items in the common ancestor tree for the original and new parent).
The example below displays a large red rectangle and a small blue rectangle, side by side. When the blueRect
is clicked, it changes to the "reparented" state: its parent is changed to redRect
and it is positioned at (10, 10) within the red rectangle, as specified in the ParentChange.
You can specify at which point in a transition you want a ParentChange to occur by using a ParentAnimation.
Note that unlike PropertyChanges, ParentChange expects an Item-based target; it will not work with arbitrary objects (for example, you couldn't use it to reparent a Timer).
Definition at line 144 of file qquickstateoperations.cpp.
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overridevirtual |
Reimplemented from QQuickStateOperation.
Definition at line 305 of file qquickstateoperations.cpp.
References actions(), QQmlAnyBinding::createFromScriptString(), d, QQuickStateAction::event, QQmlScriptString::numberLiteral(), ok, property, QQuickStateAction::property, qmlContext(), ra, rotation, and QList< T >::value().
Referenced by actions(), and QQuickParentAnimation::transition().
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overridevirtual |
Reimplemented from QQuickStateActionEvent.
Definition at line 441 of file qquickstateoperations.cpp.
References d.
QQmlScriptString QQuickParentChange::height | ( | ) | const |
Definition at line 213 of file qquickstateoperations.cpp.
References d.
bool QQuickParentChange::heightIsSet | ( | ) | const |
Definition at line 225 of file qquickstateoperations.cpp.
References d.
Referenced by QQuickParentAnimation::transition().
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overridevirtual |
Reimplemented from QQuickStateActionEvent.
Definition at line 447 of file qquickstateoperations.cpp.
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overridevirtual |
Reimplemented from QQuickStateActionEvent.
Definition at line 481 of file qquickstateoperations.cpp.
References d, other(), and QQuickStateActionEvent::ParentChange.
QQuickItem * QQuickParentChange::object | ( | ) | const |
\qmlproperty Item QtQuick::ParentChange::target This property holds the item to be reparented
Definition at line 277 of file qquickstateoperations.cpp.
References d.
Referenced by QQuickParentAnimation::transition().
QQuickItem * QQuickParentChange::originalParent | ( | ) | const |
Definition at line 267 of file qquickstateoperations.cpp.
References d.
Referenced by QQuickParentAnimation::transition().
QQuickItem * QQuickParentChange::parent | ( | ) | const |
\qmlproperty Item QtQuick::ParentChange::parent This property holds the new parent for the item in this state.
Definition at line 293 of file qquickstateoperations.cpp.
References d.
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overridevirtual |
Reimplemented from QQuickStateActionEvent.
Definition at line 470 of file qquickstateoperations.cpp.
References d.
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overridevirtual |
Reimplemented from QQuickStateActionEvent.
Definition at line 522 of file qquickstateoperations.cpp.
References d.
QQmlScriptString QQuickParentChange::rotation | ( | ) | const |
Definition at line 249 of file qquickstateoperations.cpp.
References d.
bool QQuickParentChange::rotationIsSet | ( | ) | const |
Definition at line 261 of file qquickstateoperations.cpp.
References d.
Referenced by QQuickParentAnimation::transition().
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overridevirtual |
Reimplemented from QQuickStateActionEvent.
Definition at line 491 of file qquickstateoperations.cpp.
References QList< T >::at(), QObject::children(), d, and QList< T >::size().
Referenced by saveOriginals().
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overridevirtual |
Reimplemented from QQuickStateActionEvent.
Definition at line 432 of file qquickstateoperations.cpp.
References d, and saveCurrentValues().
QQmlScriptString QQuickParentChange::scale | ( | ) | const |
Definition at line 231 of file qquickstateoperations.cpp.
References d.
bool QQuickParentChange::scaleIsSet | ( | ) | const |
Definition at line 243 of file qquickstateoperations.cpp.
References d.
Referenced by QQuickParentAnimation::transition().
void QQuickParentChange::setHeight | ( | const QQmlScriptString & | height | ) |
Definition at line 219 of file qquickstateoperations.cpp.
void QQuickParentChange::setObject | ( | QQuickItem * | target | ) |
Definition at line 283 of file qquickstateoperations.cpp.
Referenced by QQuickParentAnimation::transition().
void QQuickParentChange::setParent | ( | QQuickItem * | parent | ) |
Definition at line 299 of file qquickstateoperations.cpp.
Referenced by QQuickParentAnimation::transition().
void QQuickParentChange::setRotation | ( | const QQmlScriptString & | rotation | ) |
Definition at line 255 of file qquickstateoperations.cpp.
void QQuickParentChange::setScale | ( | const QQmlScriptString & | scale | ) |
Definition at line 237 of file qquickstateoperations.cpp.
void QQuickParentChange::setWidth | ( | const QQmlScriptString & | width | ) |
Definition at line 201 of file qquickstateoperations.cpp.
void QQuickParentChange::setX | ( | const QQmlScriptString & | x | ) |
Definition at line 165 of file qquickstateoperations.cpp.
void QQuickParentChange::setY | ( | const QQmlScriptString & | y | ) |
Definition at line 183 of file qquickstateoperations.cpp.
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overridevirtual |
Implements QQuickStateActionEvent.
Definition at line 476 of file qquickstateoperations.cpp.
References QQuickStateActionEvent::ParentChange.
QQmlScriptString QQuickParentChange::width | ( | ) | const |
Definition at line 195 of file qquickstateoperations.cpp.
References d.
bool QQuickParentChange::widthIsSet | ( | ) | const |
Definition at line 207 of file qquickstateoperations.cpp.
References d.
Referenced by QQuickParentAnimation::transition().
QQmlScriptString QQuickParentChange::x | ( | ) | const |
\qmlproperty real QtQuick::ParentChange::x \qmlproperty real QtQuick::ParentChange::y \qmlproperty real QtQuick::ParentChange::width \qmlproperty real QtQuick::ParentChange::height \qmlproperty real QtQuick::ParentChange::scale \qmlproperty real QtQuick::ParentChange::rotation These properties hold the new position, size, scale, and rotation for the item in this state.
Definition at line 159 of file qquickstateoperations.cpp.
References d.
bool QQuickParentChange::xIsSet | ( | ) | const |
Definition at line 171 of file qquickstateoperations.cpp.
References d.
Referenced by QQuickParentAnimation::transition().
QQmlScriptString QQuickParentChange::y | ( | ) | const |
Definition at line 177 of file qquickstateoperations.cpp.
References d.
bool QQuickParentChange::yIsSet | ( | ) | const |
Definition at line 189 of file qquickstateoperations.cpp.
References d.
Referenced by QQuickParentAnimation::transition().
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Definition at line 38 of file qquickstateoperations_p.h.
Referenced by setHeight().
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Definition at line 34 of file qquickstateoperations_p.h.
Referenced by setParent(), and QQuickParentAnimation::transition().
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Definition at line 40 of file qquickstateoperations_p.h.
Referenced by actions(), and setRotation().
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Definition at line 39 of file qquickstateoperations_p.h.
Referenced by setScale().
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Definition at line 33 of file qquickstateoperations_p.h.
Referenced by setObject().
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Definition at line 37 of file qquickstateoperations_p.h.
Referenced by setWidth().
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Definition at line 35 of file qquickstateoperations_p.h.
Referenced by setX().
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Definition at line 36 of file qquickstateoperations_p.h.
Referenced by setY().