QDeclarativeAbstractBinding *
QDeclarativePropertyPrivate::setBinding(QObject *object, int coreIndex, int valueTypeIndex,
QDeclarativeAbstractBinding *newBinding, WriteFlags flags)
{
QDeclarativeDeclarativeData *data = QDeclarativeDeclarativeData::get(object, 0 != newBinding);
QDeclarativeAbstractBinding *binding = 0;
if (data && data->hasBindingBit(coreIndex)) {
binding = data->bindings;
while (binding && binding->propertyIndex() != coreIndex)
binding = binding->m_nextBinding;
}
if (binding && valueTypeIndex != -1 && binding->bindingType() == QDeclarativeAbstractBinding::ValueTypeProxy) {
int index = coreIndex | (valueTypeIndex << 24);
binding = static_cast<QDeclarativeValueTypeProxyBinding *>(binding)->binding(index);
}
if (binding)
binding->setEnabled(false);
if (newBinding)
newBinding->setEnabled(true, flags);
return binding;
}
/*!
Returns the binding associated with this property, or 0 if no binding
exists.
*/
QDeclarativeAbstractBinding *
QDeclarativePropertyPrivate::binding(const QDeclarativeProperty &that)
{
if (!that.isProperty() || !that.d->object)
return 0;
QDeclarativeDeclarativeData *data = QDeclarativeDeclarativeData::get(that.d->object);
if (!data)
return 0;
if (!data->hasBindingBit(that.d->core.coreIndex))
return 0;
QDeclarativeAbstractBinding *binding = data->bindings;
while (binding && binding->propertyIndex() != that.d->core.coreIndex)
binding = binding->m_nextBinding;
if (binding && that.d->valueType.valueTypeCoreIdx != -1) {
if (binding->bindingType() == QDeclarativeAbstractBinding::ValueTypeProxy) {
QDeclarativeValueTypeProxyBinding *proxy = static_cast<QDeclarativeValueTypeProxyBinding *>(binding);
binding = proxy->binding(bindingIndex(that));
}
}
return binding;
}
QDeclarativeAbstractBinding *QDeclarativeValueTypeProxyBinding::binding(int propertyIndex)
{
QDeclarativeAbstractBinding *binding = m_bindings;
while (binding && binding->propertyIndex() != propertyIndex)
binding = binding->m_nextBinding;
return binding;
}
void QDeclarativeAbstractBinding::addToObject(QObject *object)
{
Q_ASSERT(object);
if (m_object == object)
return;
int index = propertyIndex();
removeFromObject();
Q_ASSERT(!m_prevBinding);
m_object = object;
QDeclarativeData *data = QDeclarativeData::get(object, true);
if (index & 0xFF000000) {
// Value type
int coreIndex = index & 0xFFFFFF;
// Find the value type proxy (if there is one)
QDeclarativeValueTypeProxyBinding *proxy = 0;
if (data->hasBindingBit(coreIndex)) {
QDeclarativeAbstractBinding *b = data->bindings;
while (b && b->propertyIndex() != coreIndex)
b = b->m_nextBinding;
Q_ASSERT(b && b->bindingType() == QDeclarativeAbstractBinding::ValueTypeProxy);
proxy = static_cast<QDeclarativeValueTypeProxyBinding *>(b);
}
if (!proxy)
proxy = new QDeclarativeValueTypeProxyBinding(object, coreIndex);
proxy->addToObject(object);
m_nextBinding = proxy->m_bindings;
if (m_nextBinding) m_nextBinding->m_prevBinding = &m_nextBinding;
m_prevBinding = &proxy->m_bindings;
proxy->m_bindings = this;
} else {
m_nextBinding = data->bindings;
if (m_nextBinding) m_nextBinding->m_prevBinding = &m_nextBinding;
m_prevBinding = &data->bindings;
data->bindings = this;
data->setBindingBit(m_object, index);
}
}
