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Diffstat (limited to 'src/quick/items/qquickvisualadaptormodel.cpp')
| -rw-r--r-- | src/quick/items/qquickvisualadaptormodel.cpp | 977 |
1 files changed, 0 insertions, 977 deletions
diff --git a/src/quick/items/qquickvisualadaptormodel.cpp b/src/quick/items/qquickvisualadaptormodel.cpp deleted file mode 100644 index b57f4bbe76..0000000000 --- a/src/quick/items/qquickvisualadaptormodel.cpp +++ /dev/null @@ -1,977 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the QtQml module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qquickvisualadaptormodel_p.h" -#include "qquickvisualdatamodel_p_p.h" - -#include <private/qmetaobjectbuilder_p.h> -#include <private/qqmlproperty_p.h> -#include <private/qv8engine_p.h> - -QT_BEGIN_NAMESPACE - -class QQuickVisualAdaptorModelEngineData : public QV8Engine::Deletable -{ -public: - enum - { - Index, - ModelData, - HasModelChildren, - StringCount - }; - - QQuickVisualAdaptorModelEngineData(QV8Engine *engine); - ~QQuickVisualAdaptorModelEngineData(); - - v8::Local<v8::String> index() { return strings->Get(Index)->ToString(); } - v8::Local<v8::String> modelData() { return strings->Get(ModelData)->ToString(); } - v8::Local<v8::String> hasModelChildren() { return strings->Get(HasModelChildren)->ToString(); } - - v8::Persistent<v8::Function> constructorListItem; - v8::Persistent<v8::Array> strings; -}; - -V8_DEFINE_EXTENSION(QQuickVisualAdaptorModelEngineData, engineData) - -static v8::Handle<v8::Value> get_index(v8::Local<v8::String>, const v8::AccessorInfo &info) -{ - QQuickVisualDataModelItem *data = v8_resource_cast<QQuickVisualDataModelItem>(info.This()); - V8ASSERT_TYPE(data, "Not a valid VisualData object"); - - return v8::Int32::New(data->index); -} - -template <typename T, typename M> static void setModelDataType(QMetaObjectBuilder *builder, M *metaType) -{ - builder->setFlags(QMetaObjectBuilder::DynamicMetaObject); - builder->setClassName(T::staticMetaObject.className()); - builder->setSuperClass(&T::staticMetaObject); - metaType->propertyOffset = T::staticMetaObject.propertyCount(); - metaType->signalOffset = T::staticMetaObject.methodCount(); -} - -static void addProperty(QMetaObjectBuilder *builder, int propertyId, const QByteArray &propertyName, const QByteArray &propertyType) -{ - builder->addSignal("__" + QByteArray::number(propertyId) + "()"); - QMetaPropertyBuilder property = builder->addProperty( - propertyName, propertyType, propertyId); - property.setWritable(true); -} - -class VDMModelDelegateDataType; - -class QQuickVDMCachedModelData : public QQuickVisualDataModelItem -{ -public: - QQuickVDMCachedModelData( - QQuickVisualDataModelItemMetaType *metaType, - VDMModelDelegateDataType *dataType, - int index); - - int metaCall(QMetaObject::Call call, int id, void **arguments); - - virtual QVariant value(int role) const = 0; - virtual void setValue(int role, const QVariant &value) = 0; - - void setValue(const QString &role, const QVariant &value); - bool resolveIndex(const QQuickVisualAdaptorModel &model, int idx); - - static v8::Handle<v8::Value> get_property(v8::Local<v8::String>, const v8::AccessorInfo &info); - static void set_property( - v8::Local<v8::String>, v8::Local<v8::Value> value, const v8::AccessorInfo &info); - - VDMModelDelegateDataType *type; - QVector<QVariant> cachedData; -}; - -class VDMModelDelegateDataType - : public QQmlRefCount - , public QQuickVisualAdaptorModel::Accessors - , public QAbstractDynamicMetaObject -{ -public: - VDMModelDelegateDataType(QQuickVisualAdaptorModel *model) - : model(model) - , metaObject(0) - , propertyCache(0) - , propertyOffset(0) - , signalOffset(0) - , hasModelData(false) - { - } - - ~VDMModelDelegateDataType() - { - if (propertyCache) - propertyCache->release(); - free(metaObject); - - qPersistentDispose(constructor); - } - - bool notify( - const QQuickVisualAdaptorModel &, - const QList<QQuickVisualDataModelItem *> &items, - int index, - int count, - const QVector<int> &roles) const - { - bool changed = roles.isEmpty() && !watchedRoles.isEmpty(); - if (!changed && !watchedRoles.isEmpty() && watchedRoleIds.isEmpty()) { - QList<int> roleIds; - foreach (const QByteArray &r, watchedRoles) { - QHash<QByteArray, int>::const_iterator it = roleNames.find(r); - if (it != roleNames.end()) - roleIds << it.value(); - } - const_cast<VDMModelDelegateDataType *>(this)->watchedRoleIds = roleIds; - } - - QVector<int> signalIndexes; - for (int i = 0; i < roles.count(); ++i) { - const int role = roles.at(i); - if (!changed && watchedRoleIds.contains(role)) - changed = true; - - int propertyId = propertyRoles.indexOf(role); - if (propertyId != -1) - signalIndexes.append(propertyId + signalOffset); - } - if (roles.isEmpty()) { - for (int propertyId = 0; propertyId < propertyRoles.count(); ++propertyId) - signalIndexes.append(propertyId + signalOffset); - } - - for (int i = 0, c = items.count(); i < c; ++i) { - QQuickVisualDataModelItem *item = items.at(i); - const int idx = item->modelIndex(); - if (idx >= index && idx < index + count) { - for (int i = 0; i < signalIndexes.count(); ++i) - QMetaObject::activate(item, signalIndexes.at(i), 0); - } - } - return changed; - } - - void replaceWatchedRoles( - QQuickVisualAdaptorModel &, - const QList<QByteArray> &oldRoles, - const QList<QByteArray> &newRoles) const - { - VDMModelDelegateDataType *dataType = const_cast<VDMModelDelegateDataType *>(this); - - dataType->watchedRoleIds.clear(); - foreach (const QByteArray &oldRole, oldRoles) - dataType->watchedRoles.removeOne(oldRole); - dataType->watchedRoles += newRoles; - } - - void initializeConstructor(QQuickVisualAdaptorModelEngineData *const data) - { - constructor = qPersistentNew(v8::ObjectTemplate::New()); - constructor->SetHasExternalResource(true); - constructor->SetAccessor(data->index(), get_index); - - typedef QHash<QByteArray, int>::const_iterator iterator; - for (iterator it = roleNames.constBegin(), end = roleNames.constEnd(); it != end; ++it) { - const int propertyId = propertyRoles.indexOf(it.value()); - const QByteArray &propertyName = it.key(); - - constructor->SetAccessor( - v8::String::New(propertyName.constData(), propertyName.length()), - QQuickVDMCachedModelData::get_property, - QQuickVDMCachedModelData::set_property, - v8::Int32::New(propertyId)); - } - } - - // QAbstractDynamicMetaObject - - void objectDestroyed(QObject *) - { - release(); - } - - int metaCall(QObject *object, QMetaObject::Call call, int id, void **arguments) - { - return static_cast<QQuickVDMCachedModelData *>(object)->metaCall(call, id, arguments); - } - - v8::Persistent<v8::ObjectTemplate> constructor; - QList<int> propertyRoles; - QList<int> watchedRoleIds; - QList<QByteArray> watchedRoles; - QHash<QByteArray, int> roleNames; - QQuickVisualAdaptorModel *model; - QMetaObject *metaObject; - QQmlPropertyCache *propertyCache; - int propertyOffset; - int signalOffset; - bool hasModelData; -}; - -QQuickVDMCachedModelData::QQuickVDMCachedModelData( - QQuickVisualDataModelItemMetaType *metaType, VDMModelDelegateDataType *dataType, int index) - : QQuickVisualDataModelItem(metaType, index) - , type(dataType) -{ - if (index == -1) - cachedData.resize(type->hasModelData ? 1 : type->propertyRoles.count()); - - QObjectPrivate::get(this)->metaObject = type; - - type->addref(); - - QQmlData *qmldata = QQmlData::get(this, true); - qmldata->propertyCache = dataType->propertyCache; - qmldata->propertyCache->addref(); -} - -int QQuickVDMCachedModelData::metaCall(QMetaObject::Call call, int id, void **arguments) -{ - if (call == QMetaObject::ReadProperty && id >= type->propertyOffset) { - const int propertyIndex = id - type->propertyOffset; - if (index == -1) { - if (!cachedData.isEmpty()) { - *static_cast<QVariant *>(arguments[0]) = cachedData.at( - type->hasModelData ? 0 : propertyIndex); - } - } else if (*type->model) { - *static_cast<QVariant *>(arguments[0]) = value(type->propertyRoles.at(propertyIndex)); - } - return -1; - } else if (call == QMetaObject::WriteProperty && id >= type->propertyOffset) { - const int propertyIndex = id - type->propertyOffset; - if (index == -1) { - const QMetaObject *meta = metaObject(); - if (cachedData.count() > 1) { - cachedData[propertyIndex] = *static_cast<QVariant *>(arguments[0]); - QMetaObject::activate(this, meta, propertyIndex, 0); - } else if (cachedData.count() == 1) { - cachedData[0] = *static_cast<QVariant *>(arguments[0]); - QMetaObject::activate(this, meta, 0, 0); - QMetaObject::activate(this, meta, 1, 0); - } - } else if (*type->model) { - setValue(type->propertyRoles.at(propertyIndex), *static_cast<QVariant *>(arguments[0])); - } - return -1; - } else { - return qt_metacall(call, id, arguments); - } -} - -void QQuickVDMCachedModelData::setValue(const QString &role, const QVariant &value) -{ - QHash<QByteArray, int>::iterator it = type->roleNames.find(role.toUtf8()); - if (it != type->roleNames.end()) { - for (int i = 0; i < type->propertyRoles.count(); ++i) { - if (type->propertyRoles.at(i) == *it) { - cachedData[i] = value; - return; - } - } - } -} - -bool QQuickVDMCachedModelData::resolveIndex(const QQuickVisualAdaptorModel &, int idx) -{ - if (index == -1) { - Q_ASSERT(idx >= 0); - index = idx; - cachedData.clear(); - emit modelIndexChanged(); - const QMetaObject *meta = metaObject(); - const int propertyCount = type->propertyRoles.count(); - for (int i = 0; i < propertyCount; ++i) - QMetaObject::activate(this, meta, i, 0); - return true; - } else { - return false; - } -} - -v8::Handle<v8::Value> QQuickVDMCachedModelData::get_property( - v8::Local<v8::String>, const v8::AccessorInfo &info) -{ - QQuickVisualDataModelItem *data = v8_resource_cast<QQuickVisualDataModelItem>(info.This()); - V8ASSERT_TYPE(data, "Not a valid VisualData object"); - - QQuickVDMCachedModelData *modelData = static_cast<QQuickVDMCachedModelData *>(data); - const int propertyId = info.Data()->Int32Value(); - if (data->index == -1) { - if (!modelData->cachedData.isEmpty()) { - return data->engine->fromVariant( - modelData->cachedData.at(modelData->type->hasModelData ? 0 : propertyId)); - } - } else if (*modelData->type->model) { - return data->engine->fromVariant( - modelData->value(modelData->type->propertyRoles.at(propertyId))); - } - return v8::Undefined(); -} - -void QQuickVDMCachedModelData::set_property( - v8::Local<v8::String>, v8::Local<v8::Value> value, const v8::AccessorInfo &info) -{ - QQuickVisualDataModelItem *data = v8_resource_cast<QQuickVisualDataModelItem>(info.This()); - V8ASSERT_TYPE_SETTER(data, "Not a valid VisualData object"); - - const int propertyId = info.Data()->Int32Value(); - if (data->index == -1) { - QQuickVDMCachedModelData *modelData = static_cast<QQuickVDMCachedModelData *>(data); - if (!modelData->cachedData.isEmpty()) { - if (modelData->cachedData.count() > 1) { - modelData->cachedData[propertyId] = data->engine->toVariant(value, QVariant::Invalid); - QMetaObject::activate(data, data->metaObject(), propertyId, 0); - } else if (modelData->cachedData.count() == 1) { - modelData->cachedData[0] = data->engine->toVariant(value, QVariant::Invalid); - QMetaObject::activate(data, data->metaObject(), 0, 0); - QMetaObject::activate(data, data->metaObject(), 1, 0); - } - } - } -} - -//----------------------------------------------------------------- -// QAbstractItemModel -//----------------------------------------------------------------- - -class QQuickVDMAbstractItemModelData : public QQuickVDMCachedModelData -{ - Q_OBJECT - Q_PROPERTY(bool hasModelChildren READ hasModelChildren CONSTANT) -public: - QQuickVDMAbstractItemModelData( - QQuickVisualDataModelItemMetaType *metaType, - VDMModelDelegateDataType *dataType, - int index) - : QQuickVDMCachedModelData(metaType, dataType, index) - { - } - - bool hasModelChildren() const - { - if (index >= 0 && *type->model) { - const QAbstractItemModel * const model = type->model->aim(); - return model->hasChildren(model->index(index, 0, type->model->rootIndex)); - } else { - return false; - } - } - - QVariant value(int role) const - { - return type->model->aim()->index(index, 0, type->model->rootIndex).data(role); - } - - void setValue(int role, const QVariant &value) - { - type->model->aim()->setData( - type->model->aim()->index(index, 0, type->model->rootIndex), value, role); - } - - v8::Handle<v8::Value> get() - { - if (type->constructor.IsEmpty()) { - QQuickVisualAdaptorModelEngineData * const data = engineData(engine); - v8::HandleScope handleScope; - v8::Context::Scope contextScope(engine->context()); - type->initializeConstructor(data); - type->constructor->SetAccessor(data->hasModelChildren(), get_hasModelChildren); - } - v8::Local<v8::Object> data = type->constructor->NewInstance(); - data->SetExternalResource(this); - ++scriptRef; - return data; - } - - static v8::Handle<v8::Value> get_hasModelChildren(v8::Local<v8::String>, const v8::AccessorInfo &info) - { - QQuickVisualDataModelItem *data = v8_resource_cast<QQuickVisualDataModelItem>(info.This()); - V8ASSERT_TYPE(data, "Not a valid VisualData object"); - - const QQuickVisualAdaptorModel *const model = static_cast<QQuickVDMCachedModelData *>(data)->type->model; - if (data->index >= 0 && *model) { - const QAbstractItemModel * const aim = model->aim(); - return v8::Boolean::New(aim->hasChildren(aim->index(data->index, 0, model->rootIndex))); - } else { - return v8::Boolean::New(false); - } - } -}; - -class VDMAbstractItemModelDataType : public VDMModelDelegateDataType -{ -public: - VDMAbstractItemModelDataType(QQuickVisualAdaptorModel *model) - : VDMModelDelegateDataType(model) - { - } - - int count(const QQuickVisualAdaptorModel &model) const - { - return model.aim()->rowCount(model.rootIndex); - } - - void cleanup(QQuickVisualAdaptorModel &model, QQuickVisualDataModel *vdm) const - { - QAbstractItemModel * const aim = model.aim(); - if (aim && vdm) { - QObject::disconnect(aim, SIGNAL(rowsInserted(QModelIndex,int,int)), - vdm, SLOT(_q_rowsInserted(QModelIndex,int,int))); - QObject::disconnect(aim, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)), - vdm, SLOT(_q_rowsAboutToBeRemoved(QModelIndex,int,int))); - QObject::disconnect(aim, SIGNAL(rowsRemoved(QModelIndex,int,int)), - vdm, SLOT(_q_rowsRemoved(QModelIndex,int,int))); - QObject::disconnect(aim, SIGNAL(dataChanged(QModelIndex,QModelIndex,QVector<int>)), - vdm, SLOT(_q_dataChanged(QModelIndex,QModelIndex,QVector<int>))); - QObject::disconnect(aim, SIGNAL(rowsMoved(QModelIndex,int,int,QModelIndex,int)), - vdm, SLOT(_q_rowsMoved(QModelIndex,int,int,QModelIndex,int))); - QObject::disconnect(aim, SIGNAL(modelReset()), - vdm, SLOT(_q_modelReset())); - QObject::disconnect(aim, SIGNAL(layoutChanged()), - vdm, SLOT(_q_layoutChanged())); - } - - const_cast<VDMAbstractItemModelDataType *>(this)->release(); - } - - QVariant value(const QQuickVisualAdaptorModel &model, int index, const QString &role) const - { - QHash<QByteArray, int>::const_iterator it = roleNames.find(role.toUtf8()); - if (it != roleNames.end()) { - return model.aim()->index(index, 0, model.rootIndex).data(*it); - } else if (role == QLatin1String("hasModelChildren")) { - return QVariant(model.aim()->hasChildren(model.aim()->index(index, 0, model.rootIndex))); - } else { - return QVariant(); - } - } - - QVariant parentModelIndex(const QQuickVisualAdaptorModel &model) const - { - return model - ? QVariant::fromValue(model.aim()->parent(model.rootIndex)) - : QVariant(); - } - - QVariant modelIndex(const QQuickVisualAdaptorModel &model, int index) const - { - return model - ? QVariant::fromValue(model.aim()->index(index, 0, model.rootIndex)) - : QVariant(); - } - - bool canFetchMore(const QQuickVisualAdaptorModel &model) const - { - return model && model.aim()->canFetchMore(model.rootIndex); - } - - void fetchMore(QQuickVisualAdaptorModel &model) const - { - if (model) - model.aim()->fetchMore(model.rootIndex); - } - - QQuickVisualDataModelItem *createItem( - QQuickVisualAdaptorModel &model, - QQuickVisualDataModelItemMetaType *metaType, - QQmlEngine *engine, - int index) const - { - VDMAbstractItemModelDataType *dataType = const_cast<VDMAbstractItemModelDataType *>(this); - if (!metaObject) - dataType->initializeMetaType(model, engine); - return new QQuickVDMAbstractItemModelData(metaType, dataType, index); - } - - void initializeMetaType(QQuickVisualAdaptorModel &model, QQmlEngine *engine) - { - QMetaObjectBuilder builder; - setModelDataType<QQuickVDMAbstractItemModelData>(&builder, this); - - const QByteArray propertyType = QByteArrayLiteral("QVariant"); - const QHash<int, QByteArray> names = model.aim()->roleNames(); - for (QHash<int, QByteArray>::const_iterator it = names.begin(); it != names.end(); ++it) { - const int propertyId = propertyRoles.count(); - propertyRoles.append(it.key()); - roleNames.insert(it.value(), it.key()); - addProperty(&builder, propertyId, it.value(), propertyType); - } - if (propertyRoles.count() == 1) { - hasModelData = true; - const int role = names.begin().key(); - const QByteArray propertyName = QByteArrayLiteral("modelData"); - - propertyRoles.append(role); - roleNames.insert(propertyName, role); - addProperty(&builder, 1, propertyName, propertyType); - } - - metaObject = builder.toMetaObject(); - *static_cast<QMetaObject *>(this) = *metaObject; - propertyCache = new QQmlPropertyCache(engine, metaObject); - } -}; - -//----------------------------------------------------------------- -// QQuickListAccessor -//----------------------------------------------------------------- - -class QQuickVDMListAccessorData : public QQuickVisualDataModelItem -{ - Q_OBJECT - Q_PROPERTY(QVariant modelData READ modelData WRITE setModelData NOTIFY modelDataChanged) -public: - QQuickVDMListAccessorData(QQuickVisualDataModelItemMetaType *metaType, int index, const QVariant &value) - : QQuickVisualDataModelItem(metaType, index) - , cachedData(value) - { - } - - QVariant modelData() const - { - return cachedData; - } - - void setModelData(const QVariant &data) - { - if (index == -1 && data != cachedData) { - cachedData = data; - emit modelDataChanged(); - } - } - - static v8::Handle<v8::Value> get_modelData(v8::Local<v8::String>, const v8::AccessorInfo &info) - { - QQuickVisualDataModelItem *data = v8_resource_cast<QQuickVisualDataModelItem>(info.This()); - V8ASSERT_TYPE(data, "Not a valid VisualData object"); - - return data->engine->fromVariant(static_cast<QQuickVDMListAccessorData *>(data)->cachedData); - } - - static void set_modelData(v8::Local<v8::String>, v8::Local<v8::Value> value, const v8::AccessorInfo &info) - { - QQuickVisualDataModelItem *data = v8_resource_cast<QQuickVisualDataModelItem>(info.This()); - V8ASSERT_TYPE_SETTER(data, "Not a valid VisualData object"); - - static_cast<QQuickVDMListAccessorData *>(data)->setModelData( - data->engine->toVariant(value, QVariant::Invalid)); - } - - v8::Handle<v8::Value> get() - { - v8::Local<v8::Object> data = engineData(engine)->constructorListItem->NewInstance(); - data->SetExternalResource(this); - ++scriptRef; - return data; - } - - void setValue(const QString &role, const QVariant &value) - { - if (role == QLatin1String("modelData")) - cachedData = value; - } - - bool resolveIndex(const QQuickVisualAdaptorModel &model, int idx) - { - if (index == -1) { - index = idx; - cachedData = model.list.at(idx); - emit modelIndexChanged(); - emit modelDataChanged(); - return true; - } else { - return false; - } - } - - -Q_SIGNALS: - void modelDataChanged(); - -private: - QVariant cachedData; -}; - - -class VDMListDelegateDataType : public QQuickVisualAdaptorModel::Accessors -{ -public: - inline VDMListDelegateDataType() {} - - int count(const QQuickVisualAdaptorModel &model) const - { - return model.list.count(); - } - - QVariant value(const QQuickVisualAdaptorModel &model, int index, const QString &role) const - { - return role == QLatin1String("modelData") - ? model.list.at(index) - : QVariant(); - } - - QQuickVisualDataModelItem *createItem( - QQuickVisualAdaptorModel &model, - QQuickVisualDataModelItemMetaType *metaType, - QQmlEngine *, - int index) const - { - return new QQuickVDMListAccessorData( - metaType, - index, - index >= 0 && index < model.list.count() ? model.list.at(index) : QVariant()); - } -}; - -//----------------------------------------------------------------- -// QObject -//----------------------------------------------------------------- - -class VDMObjectDelegateDataType; -class QQuickVDMObjectData : public QQuickVisualDataModelItem, public QQuickVisualAdaptorModelProxyInterface -{ - Q_OBJECT - Q_PROPERTY(QObject *modelData READ modelData CONSTANT) - Q_INTERFACES(QQuickVisualAdaptorModelProxyInterface) -public: - QQuickVDMObjectData( - QQuickVisualDataModelItemMetaType *metaType, - VDMObjectDelegateDataType *dataType, - int index, - QObject *object); - - QObject *modelData() const { return object; } - QObject *proxiedObject() { return object; } - - QQmlGuard<QObject> object; -}; - -class VDMObjectDelegateDataType : public QQmlRefCount, public QQuickVisualAdaptorModel::Accessors -{ -public: - QMetaObject *metaObject; - int propertyOffset; - int signalOffset; - bool shared; - QMetaObjectBuilder builder; - - VDMObjectDelegateDataType() - : metaObject(0) - , propertyOffset(0) - , signalOffset(0) - , shared(true) - { - } - - VDMObjectDelegateDataType(const VDMObjectDelegateDataType &type) - : QQmlRefCount() - , QQuickVisualAdaptorModel::Accessors() - , metaObject(0) - , propertyOffset(type.propertyOffset) - , signalOffset(type.signalOffset) - , shared(false) - , builder(type.metaObject, QMetaObjectBuilder::Properties - | QMetaObjectBuilder::Signals - | QMetaObjectBuilder::SuperClass - | QMetaObjectBuilder::ClassName) - { - builder.setFlags(QMetaObjectBuilder::DynamicMetaObject); - } - - ~VDMObjectDelegateDataType() - { - free(metaObject); - } - - int count(const QQuickVisualAdaptorModel &model) const - { - return model.list.count(); - } - - QVariant value(const QQuickVisualAdaptorModel &model, int index, const QString &role) const - { - if (QObject *object = model.list.at(index).value<QObject *>()) - return object->property(role.toUtf8()); - return QVariant(); - } - - QQuickVisualDataModelItem *createItem( - QQuickVisualAdaptorModel &model, - QQuickVisualDataModelItemMetaType *metaType, - QQmlEngine *, - int index) const - { - VDMObjectDelegateDataType *dataType = const_cast<VDMObjectDelegateDataType *>(this); - if (!metaObject) - dataType->initializeMetaType(model); - return index >= 0 && index < model.list.count() - ? new QQuickVDMObjectData(metaType, dataType, index, qvariant_cast<QObject *>(model.list.at(index))) - : 0; - } - - void initializeMetaType(QQuickVisualAdaptorModel &) - { - setModelDataType<QQuickVDMObjectData>(&builder, this); - - metaObject = builder.toMetaObject(); - } - - void cleanup(QQuickVisualAdaptorModel &, QQuickVisualDataModel *) const - { - const_cast<VDMObjectDelegateDataType *>(this)->release(); - } -}; - -class QQuickVDMObjectDataMetaObject : public QAbstractDynamicMetaObject -{ -public: - QQuickVDMObjectDataMetaObject(QQuickVDMObjectData *data, VDMObjectDelegateDataType *type) - : m_data(data) - , m_type(type) - { - QObjectPrivate *op = QObjectPrivate::get(m_data); - *static_cast<QMetaObject *>(this) = *type->metaObject; - op->metaObject = this; - m_type->addref(); - } - - ~QQuickVDMObjectDataMetaObject() - { - m_type->release(); - } - - int metaCall(QMetaObject::Call call, int id, void **arguments) - { - static const int objectPropertyOffset = QObject::staticMetaObject.propertyCount(); - if (id >= m_type->propertyOffset - && (call == QMetaObject::ReadProperty - || call == QMetaObject::WriteProperty - || call == QMetaObject::ResetProperty)) { - if (m_data->object) - QMetaObject::metacall(m_data->object, call, id - m_type->propertyOffset + objectPropertyOffset, arguments); - return -1; - } else if (id >= m_type->signalOffset && call == QMetaObject::InvokeMetaMethod) { - QMetaObject::activate(m_data, this, id - m_type->signalOffset, 0); - return -1; - } else { - return m_data->qt_metacall(call, id, arguments); - } - } - - int createProperty(const char *name, const char *) - { - if (!m_data->object) - return -1; - const QMetaObject *metaObject = m_data->object->metaObject(); - static const int objectPropertyOffset = QObject::staticMetaObject.propertyCount(); - - const int previousPropertyCount = propertyCount() - propertyOffset(); - int propertyIndex = metaObject->indexOfProperty(name); - if (propertyIndex == -1) - return -1; - if (previousPropertyCount + objectPropertyOffset == metaObject->propertyCount()) - return propertyIndex + m_type->propertyOffset - objectPropertyOffset; - - if (m_type->shared) { - VDMObjectDelegateDataType *type = m_type; - m_type = new VDMObjectDelegateDataType(*m_type); - type->release(); - } - - const int previousMethodCount = methodCount(); - int notifierId = previousMethodCount - methodOffset(); - for (int propertyId = previousPropertyCount; propertyId < metaObject->propertyCount() - objectPropertyOffset; ++propertyId) { - QMetaProperty property = metaObject->property(propertyId + objectPropertyOffset); - QMetaPropertyBuilder propertyBuilder; - if (property.hasNotifySignal()) { - m_type->builder.addSignal("__" + QByteArray::number(propertyId) + "()"); - propertyBuilder = m_type->builder.addProperty(property.name(), property.typeName(), notifierId); - ++notifierId; - } else { - propertyBuilder = m_type->builder.addProperty(property.name(), property.typeName()); - } - propertyBuilder.setWritable(property.isWritable()); - propertyBuilder.setResettable(property.isResettable()); - propertyBuilder.setConstant(property.isConstant()); - } - - if (m_type->metaObject) - free(m_type->metaObject); - m_type->metaObject = m_type->builder.toMetaObject(); - *static_cast<QMetaObject *>(this) = *m_type->metaObject; - - notifierId = previousMethodCount; - for (int i = previousPropertyCount; i < metaObject->propertyCount() - objectPropertyOffset; ++i) { - QMetaProperty property = metaObject->property(i + objectPropertyOffset); - if (property.hasNotifySignal()) { - QQmlPropertyPrivate::connect( - m_data->object, property.notifySignalIndex(), m_data, notifierId); - ++notifierId; - } - } - return propertyIndex + m_type->propertyOffset - objectPropertyOffset; - } - - QQuickVDMObjectData *m_data; - VDMObjectDelegateDataType *m_type; -}; - -QQuickVDMObjectData::QQuickVDMObjectData( - QQuickVisualDataModelItemMetaType *metaType, - VDMObjectDelegateDataType *dataType, - int index, - QObject *object) - : QQuickVisualDataModelItem(metaType, index) - , object(object) -{ - new QQuickVDMObjectDataMetaObject(this, dataType); -} - -//----------------------------------------------------------------- -// QQuickVisualAdaptorModel -//----------------------------------------------------------------- - -static const QQuickVisualAdaptorModel::Accessors qt_vdm_null_accessors; -static const VDMListDelegateDataType qt_vdm_list_accessors; - -QQuickVisualAdaptorModel::Accessors::~Accessors() -{ -} - -QQuickVisualAdaptorModel::QQuickVisualAdaptorModel() - : accessors(&qt_vdm_null_accessors) -{ -} - -QQuickVisualAdaptorModel::~QQuickVisualAdaptorModel() -{ - accessors->cleanup(*this); -} - -void QQuickVisualAdaptorModel::setModel(const QVariant &variant, QQuickVisualDataModel *vdm, QQmlEngine *engine) -{ - accessors->cleanup(*this, vdm); - - list.setList(variant, engine); - - if (QObject *object = qvariant_cast<QObject *>(variant)) { - setObject(object); - if (QAbstractItemModel *model = qobject_cast<QAbstractItemModel *>(object)) { - accessors = new VDMAbstractItemModelDataType(this); - - qmlobject_connect(model, QAbstractItemModel, SIGNAL(rowsInserted(QModelIndex,int,int)), - vdm, QQuickVisualDataModel, SLOT(_q_rowsInserted(QModelIndex,int,int))); - qmlobject_connect(model, QAbstractItemModel, SIGNAL(rowsRemoved(QModelIndex,int,int)), - vdm, QQuickVisualDataModel, SLOT(_q_rowsRemoved(QModelIndex,int,int))); - qmlobject_connect(model, QAbstractItemModel, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)), - vdm, QQuickVisualDataModel, SLOT(_q_rowsAboutToBeRemoved(QModelIndex,int,int))); - qmlobject_connect(model, QAbstractItemModel, SIGNAL(dataChanged(QModelIndex,QModelIndex,QVector<int>)), - vdm, QQuickVisualDataModel, SLOT(_q_dataChanged(QModelIndex,QModelIndex,QVector<int>))); - qmlobject_connect(model, QAbstractItemModel, SIGNAL(rowsMoved(QModelIndex,int,int,QModelIndex,int)), - vdm, QQuickVisualDataModel, SLOT(_q_rowsMoved(QModelIndex,int,int,QModelIndex,int))); - qmlobject_connect(model, QAbstractItemModel, SIGNAL(modelReset()), - vdm, QQuickVisualDataModel, SLOT(_q_modelReset())); - qmlobject_connect(model, QAbstractItemModel, SIGNAL(layoutChanged()), - vdm, QQuickVisualDataModel, SLOT(_q_layoutChanged())); - } else { - accessors = new VDMObjectDelegateDataType; - } - } else if (list.type() == QQuickListAccessor::ListProperty) { - setObject(static_cast<const QQmlListReference *>(variant.constData())->object()); - accessors = new VDMObjectDelegateDataType; - } else if (list.type() != QQuickListAccessor::Invalid) { - Q_ASSERT(list.type() != QQuickListAccessor::Instance); // Should have cast to QObject. - setObject(0); - accessors = &qt_vdm_list_accessors; - } else { - setObject(0); - accessors = &qt_vdm_null_accessors; - } -} - -void QQuickVisualAdaptorModel::invalidateModel(QQuickVisualDataModel *vdm) -{ - accessors->cleanup(*this, vdm); - accessors = &qt_vdm_null_accessors; - // Don't clear the model object as we still need the guard to clear the list variant if the - // object is destroyed. -} - -bool QQuickVisualAdaptorModel::isValid() const -{ - return accessors != &qt_vdm_null_accessors; -} - -void QQuickVisualAdaptorModel::objectDestroyed(QObject *) -{ - setModel(QVariant(), 0, 0); -} - -QQuickVisualAdaptorModelEngineData::QQuickVisualAdaptorModelEngineData(QV8Engine *) -{ - strings = qPersistentNew(v8::Array::New(StringCount)); - strings->Set(Index, v8::String::New("index")); - strings->Set(ModelData, v8::String::New("modelData")); - strings->Set(HasModelChildren, v8::String::New("hasModelChildren")); - - v8::Local<v8::FunctionTemplate> listItem = v8::FunctionTemplate::New(); - listItem->InstanceTemplate()->SetHasExternalResource(true); - listItem->InstanceTemplate()->SetAccessor(index(), get_index); - listItem->InstanceTemplate()->SetAccessor( - modelData(), - QQuickVDMListAccessorData::get_modelData, - QQuickVDMListAccessorData::set_modelData); - constructorListItem = qPersistentNew(listItem->GetFunction()); -} - -QQuickVisualAdaptorModelEngineData::~QQuickVisualAdaptorModelEngineData() -{ - qPersistentDispose(constructorListItem); - qPersistentDispose(strings); -} - -QT_END_NAMESPACE - -#include <qquickvisualadaptormodel.moc> |