diff options
Diffstat (limited to 'src/declarative/util/qdeclarativelistmodel.cpp')
-rw-r--r-- | src/declarative/util/qdeclarativelistmodel.cpp | 93 |
1 files changed, 64 insertions, 29 deletions
diff --git a/src/declarative/util/qdeclarativelistmodel.cpp b/src/declarative/util/qdeclarativelistmodel.cpp index 7b01cd1..9332de4 100644 --- a/src/declarative/util/qdeclarativelistmodel.cpp +++ b/src/declarative/util/qdeclarativelistmodel.cpp @@ -108,9 +108,9 @@ QDeclarativeListModelParser::ListInstruction *QDeclarativeListModelParser::ListM The following example shows a ListModel containing three elements, with the roles "name" and "cost". - \beginfloatright + \div {float-right} \inlineimage listmodel.png - \endfloat + \enddiv \snippet doc/src/snippets/declarative/listmodel.qml 0 @@ -133,9 +133,9 @@ QDeclarativeListModelParser::ListInstruction *QDeclarativeListModelParser::ListM The delegate displays all the fruit attributes: - \beginfloatright + \div {float-right} \inlineimage listmodel-nested.png - \endfloat + \enddiv \snippet doc/src/snippets/declarative/listmodel-nested.qml delegate @@ -559,6 +559,14 @@ QScriptValue QDeclarativeListModel::get(int index) const */ void QDeclarativeListModel::set(int index, const QScriptValue& valuemap) { + QList<int> roles; + set(index, valuemap, &roles); + if (!roles.isEmpty() && !inWorkerThread()) + emit itemsChanged(index, 1, roles); +} + +void QDeclarativeListModel::set(int index, const QScriptValue& valuemap, QList<int> *roles) +{ if (!valuemap.isObject() || valuemap.isArray()) { qmlInfo(this) << tr("set: value is not an object"); return; @@ -571,14 +579,10 @@ void QDeclarativeListModel::set(int index, const QScriptValue& valuemap) if (index == count()) { append(valuemap); } else { - QList<int> roles; if (m_flat) - m_flat->set(index, valuemap, &roles); + m_flat->set(index, valuemap, roles); else - m_nested->set(index, valuemap, &roles); - - if (!inWorkerThread()) - emit itemsChanged(index, 1, roles); + m_nested->set(index, valuemap, roles); } } @@ -597,19 +601,23 @@ void QDeclarativeListModel::set(int index, const QScriptValue& valuemap) */ void QDeclarativeListModel::setProperty(int index, const QString& property, const QVariant& value) { + QList<int> roles; + setProperty(index, property, value, &roles); + if (!roles.isEmpty() && !inWorkerThread()) + emit itemsChanged(index, 1, roles); +} + +void QDeclarativeListModel::setProperty(int index, const QString& property, const QVariant& value, QList<int> *roles) +{ if (count() == 0 || index >= count() || index < 0) { qmlInfo(this) << tr("set: index %1 out of range").arg(index); return; } - QList<int> roles; if (m_flat) - m_flat->setProperty(index, property, value, &roles); + m_flat->setProperty(index, property, value, roles); else - m_nested->setProperty(index, property, value, &roles); - - if (!inWorkerThread()) - emit itemsChanged(index, 1, roles); + m_nested->setProperty(index, property, value, roles); } /*! @@ -1011,9 +1019,11 @@ void FlatListModel::setProperty(int index, const QString& property, const QVaria } else { role = iter.value(); } - roles->append(role); - m_values[index][role] = value; + if (m_values[index][role] != value) { + roles->append(role); + m_values[index][role] = value; + } } void FlatListModel::move(int from, int to, int n) @@ -1043,6 +1053,10 @@ bool FlatListModel::addValue(const QScriptValue &value, QHash<int, QVariant> *ro iter = m_strings.insert(name, role); if (roles) roles->append(role); + } else { + int role = iter.value(); + if (roles && row->contains(role) && row->value(role) != v) + roles->append(role); } row->insert(*iter, v); } @@ -1151,14 +1165,14 @@ void FlatListScriptClass::setProperty(Object *obj, const Identifier &name, const QHash<int, QVariant> &row = m_model->m_values[index]; row[role] = value.toVariant(); + QList<int> roles; + roles << role; if (m_model->m_parentAgent) { // This is the list in the worker thread, so tell the agent to // emit itemsChanged() later - m_model->m_parentAgent->changedData(index, 1); + m_model->m_parentAgent->changedData(index, 1, roles); } else { // This is the list in the main thread, so emit itemsChanged() - QList<int> roles; - roles << role; emit m_model->m_listModel->itemsChanged(index, 1, roles); } } @@ -1350,7 +1364,9 @@ void NestedListModel::set(int index, const QScriptValue& valuemap, QList<int> *r Q_ASSERT(index >=0 && index < count()); ModelNode *node = qvariant_cast<ModelNode *>(_root->values.at(index)); - node->setObjectValue(valuemap); + bool emitItemsChanged = node->setObjectValue(valuemap); + if (!emitItemsChanged) + return; QScriptValueIterator it(valuemap); while (it.hasNext()) { @@ -1369,7 +1385,9 @@ void NestedListModel::setProperty(int index, const QString& property, const QVar Q_ASSERT(index >=0 && index < count()); ModelNode *node = qvariant_cast<ModelNode *>(_root->values.at(index)); - node->setProperty(property, value); + bool emitItemsChanged = node->setProperty(property, value); + if (!emitItemsChanged) + return; int r = roleStrings.indexOf(property); if (r < 0) { @@ -1441,24 +1459,37 @@ void ModelNode::clear() properties.clear(); } -void ModelNode::setObjectValue(const QScriptValue& valuemap, bool writeToCache) { +bool ModelNode::setObjectValue(const QScriptValue& valuemap, bool writeToCache) +{ + bool emitItemsChanged = false; + QScriptValueIterator it(valuemap); while (it.hasNext()) { it.next(); + ModelNode *prev = properties.value(it.name()); ModelNode *value = new ModelNode(m_model); QScriptValue v = it.value(); + if (v.isArray()) { value->isArray = true; value->setListValue(v); + if (writeToCache && objectCache) + objectCache->setValue(it.name().toUtf8(), QVariant::fromValue(value->model(m_model))); + emitItemsChanged = true; // for now, too inefficient to check whether list and sublists have changed } else { value->values << v.toVariant(); if (writeToCache && objectCache) objectCache->setValue(it.name().toUtf8(), value->values.last()); + if (!emitItemsChanged && prev && prev->values.count() == 1 + && prev->values[0] != value->values.last()) { + emitItemsChanged = true; + } } if (properties.contains(it.name())) delete properties[it.name()]; properties.insert(it.name(), value); } + return emitItemsChanged; } void ModelNode::setListValue(const QScriptValue& valuelist) { @@ -1481,9 +1512,12 @@ void ModelNode::setListValue(const QScriptValue& valuelist) { } } -void ModelNode::setProperty(const QString& prop, const QVariant& val) { +bool ModelNode::setProperty(const QString& prop, const QVariant& val) { QHash<QString, ModelNode *>::const_iterator it = properties.find(prop); + bool emitItemsChanged = false; if (it != properties.end()) { + if (val != (*it)->values[0]) + emitItemsChanged = true; (*it)->values[0] = val; } else { ModelNode *n = new ModelNode(m_model); @@ -1492,6 +1526,7 @@ void ModelNode::setProperty(const QString& prop, const QVariant& val) { } if (objectCache) objectCache->setValue(prop.toUtf8(), val); + return emitItemsChanged; } void ModelNode::updateListIndexes() @@ -1559,7 +1594,7 @@ ModelObject::ModelObject(ModelNode *node, NestedListModel *model, QScriptEngine void ModelObject::setValue(const QByteArray &name, const QVariant &val) { m_meta->setValue(name, val); - setProperty(name.constData(), val); + //setProperty(name.constData(), val); } void ModelObject::setNodeUpdatesEnabled(bool enable) @@ -1586,9 +1621,9 @@ void ModelNodeMetaObject::propertyWritten(int index) QScriptValue sv = m_seng->newObject(); sv.setProperty(propName, m_seng->newVariant(value)); - m_obj->m_node->setObjectValue(sv, false); - - m_obj->m_node->changedProperty(propName); + bool changed = m_obj->m_node->setObjectValue(sv, false); + if (changed) + m_obj->m_node->changedProperty(propName); } |