Remove WorkerListModel and integrate its functionality into ListModel.

Task-number: QT-2829

1 files changed, 245 insertions, 0 deletions

diff --git a/src/declarative/util/qdeclarativelistmodelworkeragent.cpp b/src/declarative/util/qdeclarativelistmodelworkeragent.cpp
new file mode 100644
index 0000000..ee43447
--- /dev/null
+++ b/src/declarative/util/qdeclarativelistmodelworkeragent.cpp
@@ -0,0 +1,245 @@
+/****************************************************************************
+**
+** 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 "qdeclarativelistmodelworkeragent_p.h"
+#include "qdeclarativelistmodel_p_p.h"
+#include "qdeclarativedeclarativedata_p.h"
+#include "qdeclarativeengine_p.h"
+#include "qdeclarativeinfo.h"
+
+#include <QtCore/qcoreevent.h>
+#include <QtCore/qcoreapplication.h>
+#include <QtCore/qdebug.h>
+
+
+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
+{
+    if (index < 0 || index >= count())
+        return m_engine->undefinedValue();
+
+    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<Sync *>(e);
+
+        const QList<Change> &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) {
+                qWarning("QML List worker: cannot synchronize lists");
+                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(m_copy->count());
+
+            //qDebug() << "------sync():" << m_copy->count() << s->list->count() << m_orig->count();
+        }
+    }
+
+    return QObject::event(e);
+}
+
+QT_END_NAMESPACE
+