diff options
Diffstat (limited to 'src/declarative/qml/qmlmetaproperty.cpp')
| -rw-r--r-- | src/declarative/qml/qmlmetaproperty.cpp | 47 |
1 files changed, 46 insertions, 1 deletions
diff --git a/src/declarative/qml/qmlmetaproperty.cpp b/src/declarative/qml/qmlmetaproperty.cpp index 52036c2..30e818b 100644 --- a/src/declarative/qml/qmlmetaproperty.cpp +++ b/src/declarative/qml/qmlmetaproperty.cpp @@ -519,7 +519,7 @@ QMetaProperty QmlMetaProperty::property() const Returns the binding associated with this property, or 0 if no binding exists. */ -QmlBindableValue *QmlMetaProperty::binding() +QmlBindableValue *QmlMetaProperty::binding() const { if (!isProperty() || type() & Attached) return 0; @@ -537,6 +537,51 @@ QmlBindableValue *QmlMetaProperty::binding() return 0; } +/*! + Set the binding associated with this property to \a binding. Returns + the existing binding (if any), otherwise 0. + + \a binding will be enabled, and the returned binding (if any) will be + disabled. +*/ +QmlBindableValue *QmlMetaProperty::setBinding(QmlBindableValue *binding) const +{ + if (!isProperty() || type() & Attached) + return 0; + + const QObjectList &children = object()->children(); + for (QObjectList::ConstIterator iter = children.begin(); + iter != children.end(); ++iter) { + QObject *child = *iter; + if (child->metaObject() == &QmlBindableValue::staticMetaObject) { + QmlBindableValue *v = static_cast<QmlBindableValue *>(child); + if (v->property() == *this && v->enabled()) { + + v->setEnabled(false); + + if (binding) { + binding->setParent(object()); + binding->setTarget(*this); + binding->setEnabled(true); + binding->forceUpdate(); + } + + return v; + + } + } + } + + if (binding) { + binding->setParent(object()); + binding->setTarget(*this); + binding->setEnabled(true); + binding->forceUpdate(); + } + + return 0; +} + /*! \internal */ int QmlMetaProperty::findSignal(const QObject *obj, const char *name) { |