diff options
Diffstat (limited to 'src/declarative/qml/qdeclarativeproperty.cpp')
| -rw-r--r-- | src/declarative/qml/qdeclarativeproperty.cpp | 100 |
1 files changed, 68 insertions, 32 deletions
diff --git a/src/declarative/qml/qdeclarativeproperty.cpp b/src/declarative/qml/qdeclarativeproperty.cpp index e1ec2cd..945d098 100644 --- a/src/declarative/qml/qdeclarativeproperty.cpp +++ b/src/declarative/qml/qdeclarativeproperty.cpp @@ -115,8 +115,10 @@ QDeclarativeProperty::QDeclarativeProperty(QObject *obj) } /*! - Creates a QDeclarativeProperty for the default property of \a obj. If there is no - default property, an invalid QDeclarativeProperty will be created. + Creates a QDeclarativeProperty for the default property of \a obj + using the \l{QDeclarativeContext} {context} \a ctxt. If there is + no default property, an invalid QDeclarativeProperty will be + created. */ QDeclarativeProperty::QDeclarativeProperty(QObject *obj, QDeclarativeContext *ctxt) : d(new QDeclarativePropertyPrivate) @@ -128,11 +130,13 @@ QDeclarativeProperty::QDeclarativeProperty(QObject *obj, QDeclarativeContext *ct } /*! - Creates a QDeclarativeProperty for the default property of \a obj. If there is no - default property, an invalid QDeclarativeProperty will be created. + Creates a QDeclarativeProperty for the default property of \a obj + using the environment for instantiating QML components that is + provided by \a engine. If there is no default property, an + invalid QDeclarativeProperty will be created. */ QDeclarativeProperty::QDeclarativeProperty(QObject *obj, QDeclarativeEngine *engine) -: d(new QDeclarativePropertyPrivate) + : d(new QDeclarativePropertyPrivate) { d->q = this; d->context = 0; @@ -166,8 +170,9 @@ QDeclarativeProperty::QDeclarativeProperty(QObject *obj, const QString &name) } /*! - Creates a QDeclarativeProperty for the property \a name of \a obj. - */ + Creates a QDeclarativeProperty for the property \a name of \a obj + using the \l{QDeclarativeContext} {context} \a ctxt. +*/ QDeclarativeProperty::QDeclarativeProperty(QObject *obj, const QString &name, QDeclarativeContext *ctxt) : d(new QDeclarativePropertyPrivate) { @@ -179,7 +184,9 @@ QDeclarativeProperty::QDeclarativeProperty(QObject *obj, const QString &name, QD } /*! - Creates a QDeclarativeProperty for the property \a name of \a obj. + Creates a QDeclarativeProperty for the property \a name of \a obj + using the environment for instantiating QML components that is + provided by \a engine. */ QDeclarativeProperty::QDeclarativeProperty(QObject *obj, const QString &name, QDeclarativeEngine *engine) : d(new QDeclarativePropertyPrivate) @@ -238,10 +245,10 @@ void QDeclarativePropertyPrivate::initProperty(QObject *obj, const QString &name if (property->flags & QDeclarativePropertyCache::Data::IsFunction) return; // Not an object property - if (ii == (path.count() - 2) && property->propType < (int)QVariant::UserType) { + if (ii == (path.count() - 2) && QDeclarativeValueTypeFactory::isValueType(property->propType)) { // We're now at a value type property. We can use a global valuetypes array as we // never actually use the objects, just look up their properties. - QObject *typeObject = qmlValueTypes()->valueTypes[property->propType]; + QObject *typeObject = (*qmlValueTypes())[property->propType]; if (!typeObject) return; // Not a value type int idx = typeObject->metaObject()->indexOfProperty(path.last().toUtf8().constData()); @@ -346,7 +353,7 @@ QDeclarativePropertyPrivate::propertyTypeCategory() const int type = propertyType(); if (type == QVariant::Invalid) return QDeclarativeProperty::InvalidCategory; - else if ((uint)type < QVariant::UserType) + else if (QDeclarativeValueTypeFactory::isValueType((uint)type)) return QDeclarativeProperty::Normal; else if (core.flags & QDeclarativePropertyCache::Data::IsQObjectDerived) return QDeclarativeProperty::Object; @@ -766,11 +773,14 @@ QVariant QDeclarativeProperty::read(QObject *object, const QString &name) } /*! -Return the \a name property value of \a object. This method is equivalent to: -\code + Return the \a name property value of \a object using the + \l{QDeclarativeContext} {context} \a ctxt. This method is + equivalent to: + + \code QDeclarativeProperty p(object, name, context); p.read(); -\endcode + \endcode */ QVariant QDeclarativeProperty::read(QObject *object, const QString &name, QDeclarativeContext *ctxt) { @@ -779,11 +789,15 @@ QVariant QDeclarativeProperty::read(QObject *object, const QString &name, QDecla } /*! -Return the \a name property value of \a object. This method is equivalent to: -\code + + Return the \a name property value of \a object using the environment + for instantiating QML components that is provided by \a engine. . + This method is equivalent to: + + \code QDeclarativeProperty p(object, name, engine); p.read(); -\endcode + \endcode */ QVariant QDeclarativeProperty::read(QObject *object, const QString &name, QDeclarativeEngine *engine) { @@ -793,7 +807,7 @@ QVariant QDeclarativeProperty::read(QObject *object, const QString &name, QDecla QVariant QDeclarativePropertyPrivate::readValueProperty() { - if(isValueType()) { + if (isValueType()) { QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(context); QDeclarativeValueType *valueType = 0; @@ -809,13 +823,20 @@ QVariant QDeclarativePropertyPrivate::readValueProperty() if (!ep) delete valueType; return rv; - } else if(core.flags & QDeclarativePropertyCache::Data::IsQList) { + } else if (core.flags & QDeclarativePropertyCache::Data::IsQList) { QDeclarativeListProperty<QObject> prop; void *args[] = { &prop, 0 }; QMetaObject::metacall(object, QMetaObject::ReadProperty, core.coreIndex, args); return QVariant::fromValue(QDeclarativeListReferencePrivate::init(prop, core.propType, engine)); + } else if (core.flags & QDeclarativePropertyCache::Data::IsQObjectDerived) { + + QObject *rv = 0; + void *args[] = { &rv, 0 }; + QMetaObject::metacall(object, QMetaObject::ReadProperty, core.coreIndex, args); + return QVariant::fromValue(rv); + } else { return object->metaObject()->property(core.coreIndex).read(object.data()); @@ -1066,19 +1087,23 @@ const QMetaObject *QDeclarativePropertyPrivate::rawMetaObjectForType(QDeclarativ } /*! - Set the property value to \a value. -*/ + Sets the property value to \a value and returns true. + Returns false if the property can't be set because the + \a value is the wrong type, for example. + */ bool QDeclarativeProperty::write(const QVariant &value) const { return QDeclarativePropertyPrivate::write(*this, value, 0); } /*! -Writes \a value to the \a name property of \a object. This method is equivalent to: -\code + Writes \a value to the \a name property of \a object. This method + is equivalent to: + + \code QDeclarativeProperty p(object, name); p.write(value); -\endcode + \endcode */ bool QDeclarativeProperty::write(QObject *object, const QString &name, const QVariant &value) { @@ -1087,13 +1112,18 @@ bool QDeclarativeProperty::write(QObject *object, const QString &name, const QVa } /*! -Writes \a value to the \a name property of \a object. This method is equivalent to: -\code + Writes \a value to the \a name property of \a object using the + \l{QDeclarativeContext} {context} \a ctxt. This method is + equivalent to: + + \code QDeclarativeProperty p(object, name, ctxt); p.write(value); -\endcode + \endcode */ -bool QDeclarativeProperty::write(QObject *object, const QString &name, const QVariant &value, +bool QDeclarativeProperty::write(QObject *object, + const QString &name, + const QVariant &value, QDeclarativeContext *ctxt) { QDeclarativeProperty p(object, name, ctxt); @@ -1101,11 +1131,15 @@ bool QDeclarativeProperty::write(QObject *object, const QString &name, const QVa } /*! -Writes \a value to the \a name property of \a object. This method is equivalent to: -\code + + Writes \a value to the \a name property of \a object using the + environment for instantiating QML components that is provided by + \a engine. This method is equivalent to: + + \code QDeclarativeProperty p(object, name, engine); p.write(value); -\endcode + \endcode */ bool QDeclarativeProperty::write(QObject *object, const QString &name, const QVariant &value, QDeclarativeEngine *engine) @@ -1115,7 +1149,9 @@ bool QDeclarativeProperty::write(QObject *object, const QString &name, const QVa } /*! - Resets the property value. + Resets the property and returns true if the property is + resettable. If the property is not resettable, nothing happens + and false is returned. */ bool QDeclarativeProperty::reset() const { |