diff -r b72c6db6890b -r 5dc02b23752f src/declarative/util/qdeclarativelistmodelworkeragent.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/declarative/util/qdeclarativelistmodelworkeragent.cpp Tue Jul 06 15:10:48 2010 +0300 @@ -0,0 +1,239 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtDeclarative module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** 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, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "private/qdeclarativelistmodelworkeragent_p.h" +#include "private/qdeclarativelistmodel_p_p.h" +#include "private/qdeclarativedata_p.h" +#include "private/qdeclarativeengine_p.h" +#include "qdeclarativeinfo.h" + +#include +#include +#include + + +QT_BEGIN_NAMESPACE + + +void QDeclarativeListModelWorkerAgent::Data::clearChange() +{ + changes.clear(); +} + +void QDeclarativeListModelWorkerAgent::Data::insertChange(int index, int count) +{ + Change c = { Change::Inserted, index, count, 0 }; + changes << c; +} + +void QDeclarativeListModelWorkerAgent::Data::removeChange(int index, int count) +{ + Change c = { Change::Removed, index, count, 0 }; + changes << c; +} + +void QDeclarativeListModelWorkerAgent::Data::moveChange(int index, int count, int to) +{ + Change c = { Change::Moved, index, count, to }; + changes << c; +} + +void QDeclarativeListModelWorkerAgent::Data::changedChange(int index, int count) +{ + Change c = { Change::Changed, index, count, 0 }; + changes << c; +} + +QDeclarativeListModelWorkerAgent::QDeclarativeListModelWorkerAgent(QDeclarativeListModel *model) +: m_engine(0), m_ref(1), m_orig(model), m_copy(new QDeclarativeListModel(true, this)) +{ + m_copy->m_flat->m_roles = m_orig->m_flat->m_roles; + m_copy->m_flat->m_strings = m_orig->m_flat->m_strings; + m_copy->m_flat->m_values = m_orig->m_flat->m_values; +} + +QDeclarativeListModelWorkerAgent::~QDeclarativeListModelWorkerAgent() +{ +} + +void QDeclarativeListModelWorkerAgent::setScriptEngine(QScriptEngine *eng) +{ + m_engine = eng; + if (m_copy->m_flat) + m_copy->m_flat->m_scriptEngine = eng; +} + +QScriptEngine *QDeclarativeListModelWorkerAgent::scriptEngine() const +{ + return m_engine; +} + +void QDeclarativeListModelWorkerAgent::addref() +{ + m_ref.ref(); +} + +void QDeclarativeListModelWorkerAgent::release() +{ + bool del = !m_ref.deref(); + + if (del) + delete this; +} + +int QDeclarativeListModelWorkerAgent::count() const +{ + return m_copy->count(); +} + +void QDeclarativeListModelWorkerAgent::clear() +{ + data.clearChange(); + data.removeChange(0, m_copy->count()); + m_copy->clear(); +} + +void QDeclarativeListModelWorkerAgent::remove(int index) +{ + int count = m_copy->count(); + m_copy->remove(index); + + if (m_copy->count() != count) + data.removeChange(index, 1); +} + +void QDeclarativeListModelWorkerAgent::append(const QScriptValue &value) +{ + int count = m_copy->count(); + m_copy->append(value); + + if (m_copy->count() != count) + data.insertChange(m_copy->count() - 1, 1); +} + +void QDeclarativeListModelWorkerAgent::insert(int index, const QScriptValue &value) +{ + int count = m_copy->count(); + m_copy->insert(index, value); + + if (m_copy->count() != count) + data.insertChange(index, 1); +} + +QScriptValue QDeclarativeListModelWorkerAgent::get(int index) const +{ + return m_copy->get(index); +} + +void QDeclarativeListModelWorkerAgent::set(int index, const QScriptValue &value) +{ + m_copy->set(index, value); + data.changedChange(index, 1); +} + +void QDeclarativeListModelWorkerAgent::setProperty(int index, const QString& property, const QVariant& value) +{ + m_copy->setProperty(index, property, value); + data.changedChange(index, 1); +} + +void QDeclarativeListModelWorkerAgent::move(int from, int to, int count) +{ + m_copy->move(from, to, count); + data.moveChange(from, to, count); +} + +void QDeclarativeListModelWorkerAgent::sync() +{ + Sync *s = new Sync; + s->data = data; + s->list = m_copy; + data.changes.clear(); + QCoreApplication::postEvent(this, s); +} + +bool QDeclarativeListModelWorkerAgent::event(QEvent *e) +{ + if (e->type() == QEvent::User) { + Sync *s = static_cast(e); + + const QList &changes = s->data.changes; + + if (m_copy) { + bool cc = m_copy->count() != s->list->count(); + + FlatListModel *orig = m_orig->m_flat; + FlatListModel *copy = s->list->m_flat; + if (!orig || !copy) + return QObject::event(e); + + orig->m_roles = copy->m_roles; + orig->m_strings = copy->m_strings; + orig->m_values = copy->m_values; + + for (int ii = 0; ii < changes.count(); ++ii) { + const Change &change = changes.at(ii); + switch (change.type) { + case Change::Inserted: + emit m_orig->itemsInserted(change.index, change.count); + break; + case Change::Removed: + emit m_orig->itemsRemoved(change.index, change.count); + break; + case Change::Moved: + emit m_orig->itemsMoved(change.index, change.to, change.count); + break; + case Change::Changed: + emit m_orig->itemsMoved(change.index, change.to, change.count); + break; + } + } + + if (cc) + emit m_orig->countChanged(); + } + } + + return QObject::event(e); +} + +QT_END_NAMESPACE +