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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The QtRectFPropertyManager provides and manages QRectF properties. More...
#include <qtpropertymanager_p.h>
Public Slots | |
void | setValue (QtProperty *property, const QRectF &val) |
Sets the value of the given property to value. | |
void | setConstraint (QtProperty *property, const QRectF &constraint) |
Sets the given property's constraining rectangle to constraint. | |
void | setDecimals (QtProperty *property, int prec) |
Sets the precision of the given property to prec. | |
Public Slots inherited from QObject | |
void | deleteLater () |
\threadsafe | |
Signals | |
void | valueChanged (QtProperty *property, const QRectF &val) |
This signal is emitted whenever a property created by this manager changes its value, passing a pointer to the property and the new value as parameters. | |
void | constraintChanged (QtProperty *property, const QRectF &constraint) |
This signal is emitted whenever property changes its constraint rectangle, passing a pointer to the property and the new constraint rectangle as parameters. | |
void | decimalsChanged (QtProperty *property, int prec) |
This signal is emitted whenever a property created by this manager changes its precision of value, passing a pointer to the property and the new prec value. | |
Signals inherited from QtAbstractPropertyManager | |
void | propertyInserted (QtProperty *property, QtProperty *parent, QtProperty *after) |
This signal is emitted when a new subproperty is inserted into an existing property, passing pointers to the newProperty, parentProperty and precedingProperty as parameters. | |
void | propertyChanged (QtProperty *property) |
This signal is emitted whenever a property's data changes, passing a pointer to the property as parameter. | |
void | propertyRemoved (QtProperty *property, QtProperty *parent) |
This signal is emitted when a subproperty is removed, passing pointers to the removed property and the parent property as parameters. | |
void | propertyDestroyed (QtProperty *property) |
This signal is emitted when the specified property is about to be destroyed. | |
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. | |
Public Member Functions | |
QtRectFPropertyManager (QObject *parent=0) | |
Creates a manager with the given parent. | |
~QtRectFPropertyManager () | |
Destroys this manager, and all the properties it has created. | |
QtDoublePropertyManager * | subDoublePropertyManager () const |
Returns the manager that creates the nested x, y, width and height subproperties. | |
QRectF | value (const QtProperty *property) const |
Returns the given property's value. | |
QRectF | constraint (const QtProperty *property) const |
Returns the given property's constraining rectangle. | |
int | decimals (const QtProperty *property) const |
Returns the given property's precision, in decimals. | |
Public Member Functions inherited from QtAbstractPropertyManager | |
QtAbstractPropertyManager (QObject *parent=0) | |
Creates an abstract property manager with the given parent. | |
~QtAbstractPropertyManager () | |
Destroys the manager. | |
QSet< QtProperty * > | properties () const |
Returns the set of properties created by this manager. | |
void | clear () const |
Destroys all the properties that this manager has created. | |
QtProperty * | addProperty (const QString &name=QString()) |
Creates a property with the given name which then is owned by this manager. | |
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 . | |
Protected Member Functions | |
QString | valueText (const QtProperty *property) const override |
\reimp | |
void | initializeProperty (QtProperty *property) override |
\reimp | |
void | uninitializeProperty (QtProperty *property) override |
\reimp | |
Protected Member Functions inherited from QtAbstractPropertyManager | |
virtual bool | hasValue (const QtProperty *property) const |
Returns whether the given property has a value. | |
virtual QIcon | valueIcon (const QtProperty *property) const |
Returns an icon representing the current state of the given property. | |
virtual QtProperty * | createProperty () |
Creates a property. | |
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) | |
Additional Inherited Members | |
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 Attributes inherited from QObject | |
QScopedPointer< QObjectData > | d_ptr |
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) | |
The QtRectFPropertyManager provides and manages QRectF properties.
\inmodule QtDesigner
A rectangle property has nested x, y, width and height subproperties. The top-level property's value can be retrieved using the value() function, and set using the setValue() slot.
The subproperties are created by a QtDoublePropertyManager object. This manager can be retrieved using the subDoublePropertyManager() function. In order to provide editing widgets for the subproperties in a property browser widget, this manager must be associated with an editor factory.
A rectangle property also has a constraint rectangle which can be retrieved using the constraint() function, and set using the setConstraint() slot.
In addition, QtRectFPropertyManager provides the valueChanged() signal which is emitted whenever a property created by this manager changes, and the constraintChanged() signal which is emitted whenever such a property changes its constraint rectangle.
Definition at line 484 of file qtpropertymanager_p.h.
QtRectFPropertyManager::QtRectFPropertyManager | ( | QObject * | parent = 0 | ) |
Creates a manager with the given parent.
Definition at line 4248 of file qtpropertymanager.cpp.
QtRectFPropertyManager::~QtRectFPropertyManager | ( | ) |
Destroys this manager, and all the properties it has created.
Definition at line 4263 of file qtpropertymanager.cpp.
References QtAbstractPropertyManager::clear().
QRectF QtRectFPropertyManager::constraint | ( | const QtProperty * | property | ) | const |
Returns the given property's constraining rectangle.
If returned value is null QRectF it means there is no constraint applied.
Definition at line 4311 of file qtpropertymanager.cpp.
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signal |
This signal is emitted whenever property changes its constraint rectangle, passing a pointer to the property and the new constraint rectangle as parameters.
int QtRectFPropertyManager::decimals | ( | const QtProperty * | property | ) | const |
Returns the given property's precision, in decimals.
Definition at line 4301 of file qtpropertymanager.cpp.
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signal |
This signal is emitted whenever a property created by this manager changes its precision of value, passing a pointer to the property and the new prec value.
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overrideprotectedvirtual |
\reimp
Implements QtAbstractPropertyManager.
Definition at line 4477 of file qtpropertymanager.cpp.
References QtProperty::addSubProperty().
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slot |
Sets the given property's constraining rectangle to constraint.
When setting the constraint, the current value is adjusted if necessary (ensuring that the current rectangle value is inside the constraint). In order to reset the constraint pass a null QRectF value.
Definition at line 4389 of file qtpropertymanager.cpp.
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slot |
Sets the precision of the given property to prec.
The valid decimal range is 0-13. The default is 2.
Definition at line 4447 of file qtpropertymanager.cpp.
References QtRectFPropertyManagerPrivate::Data::decimals.
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slot |
Sets the value of the given property to value.
Nested properties are updated automatically.
If the specified value is not inside the given property's constraining rectangle, the value is adjusted accordingly to fit within the constraint.
Definition at line 4344 of file qtpropertymanager.cpp.
QtDoublePropertyManager * QtRectFPropertyManager::subDoublePropertyManager | ( | ) | const |
Returns the manager that creates the nested x, y, width and height subproperties.
In order to provide editing widgets for the mentioned subproperties in a property browser widget, this manager must be associated with an editor factory.
Definition at line 4278 of file qtpropertymanager.cpp.
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overrideprotectedvirtual |
\reimp
Reimplemented from QtAbstractPropertyManager.
Definition at line 4519 of file qtpropertymanager.cpp.
QRectF QtRectFPropertyManager::value | ( | const QtProperty * | property | ) | const |
Returns the given property's value.
If the given property is not managed by this manager, this function returns an invalid rectangle.
Definition at line 4291 of file qtpropertymanager.cpp.
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signal |
This signal is emitted whenever a property created by this manager changes its value, passing a pointer to the property and the new value as parameters.
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overrideprotectedvirtual |
\reimp
Reimplemented from QtAbstractPropertyManager.
Definition at line 4319 of file qtpropertymanager.cpp.