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/**************************************************************************
**
** This file is part of Qt Creator
**
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** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
**
**************************************************************************/

#include <model.h>
#include <modelnode.h>
#include "internalnode_p.h"
#include "invalidpropertyexception.h"
#include "invalidargumentexception.h"

#include <QtCore/QFile>
#include <QtCore/QByteArray>
#include <QWeakPointer>
#include <QtCore/QFileInfo>

#include <QtGui/QUndoStack>
#include <QtXml/QXmlStreamReader>
#include <QtCore/QDebug>
#include <QPlainTextEdit>

#include "abstractview.h"
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#include "nodeinstanceview.h"
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#include "metainfo.h"
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#include "nodemetainfo.h"
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#include "model_p.h"
#include "subcomponentmanager.h"
#include "variantparser.h"
#include "internalproperty.h"
#include "internalnodelistproperty.h"
#include "internalnodeabstractproperty.h"
#include "invalidmodelnodeexception.h"
#include "invalidmodelstateexception.h"
#include "invalidslideindexexception.h"

#include "abstractproperty.h"
#include "variantproperty.h"
#include "bindingproperty.h"
#include "nodeabstractproperty.h"
#include "nodelistproperty.h"
#include "rewritertransaction.h"
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#include "rewriterview.h"
#include "rewritingexception.h"
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#include "invalididexception.h"
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/*!
\defgroup CoreModel
*/
/*!
\class QmlDesigner::Model
\ingroup CoreModel
\brief This is the facade for the abstract model data.
 All write access is running through this interface

The Model is the central place to access a qml files data (see e.g. rootNode() ) and meta data (see metaInfo() ).

Components that want to be informed about changes in the model can register a subclass of AbstractView via attachView().

\see QmlDesigner::ModelNode, QmlDesigner::AbstractProperty, QmlDesigner::AbstractView
*/

namespace QmlDesigner {
namespace Internal {

ModelPrivate::ModelPrivate(Model *model) :
        m_q(model),
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        m_writeLock(false),
        m_internalIdCounter(1)
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{
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    m_rootInternalNode = createNode("Qt/Item", 4, 7, PropertyListType(), true);
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}

ModelPrivate::~ModelPrivate()
{
    detachAllViews();
}

void ModelPrivate::detachAllViews()
{
    foreach (const QWeakPointer<AbstractView> &view, m_viewList)
        detachView(view.data(), true);

    m_viewList.clear();
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    if (m_rewriterView) {
        m_rewriterView->modelAboutToBeDetached(m_q);
        m_rewriterView.clear();
    }

    if (m_nodeInstanceView) {
        m_nodeInstanceView->modelAboutToBeDetached(m_q);
        m_nodeInstanceView.clear();
    }
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}

Model *ModelPrivate::create(QString type, int major, int minor)
{
    Model *model = new Model;

    model->m_d->rootNode()->setType(type);
    model->m_d->rootNode()->setMajorVersion(major);
    model->m_d->rootNode()->setMinorVersion(minor);

    return model;
}

void ModelPrivate::addImport(const Import &import)
{
    if (m_imports.contains(import))
        return;

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    m_imports.append(import);
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    notifyImportAdded(import);
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}

void ModelPrivate::removeImport(const Import &import)
{
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    if (!m_imports.removeOne(import))
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        return;

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    notifyImportRemoved(import);
}

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void ModelPrivate::notifyImportAdded(const Import &import)
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{
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    bool resetModel = false;
    QString description;

    try {
        if (rewriterView()) {
            rewriterView()->importAdded(import);
        }
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }

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    foreach (const QWeakPointer<AbstractView> &view, m_viewList)
        view->importAdded(import);
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    if (nodeInstanceView())
        nodeInstanceView()->importAdded(import);

    if (resetModel) {
        resetModelByRewriter(description);
    }
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}

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void ModelPrivate::notifyImportRemoved(const Import &import)
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{
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    bool resetModel = false;
    QString description;

    try {
        if (rewriterView()) {
            rewriterView()->importRemoved(import);
        }
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }

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    foreach (const QWeakPointer<AbstractView> &view, m_viewList)
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        view->importRemoved(import);
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    if (nodeInstanceView())
        nodeInstanceView()->importRemoved(import);

    if (resetModel) {
        resetModelByRewriter(description);
    }
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}

QUrl ModelPrivate::fileUrl() const
{
    return m_fileUrl;
}

void ModelPrivate::setFileUrl(const QUrl &fileUrl)
{
    QUrl oldPath = m_fileUrl;

    if (oldPath != fileUrl) {
        m_fileUrl = fileUrl;

        foreach (const QWeakPointer<AbstractView> &view, m_viewList)
            view->fileUrlChanged(oldPath, fileUrl);
    }
}

InternalNode::Pointer ModelPrivate::createNode(const QString &typeString,
                                               int majorVersion,
                                               int minorVersion,
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                                               const QList<QPair<QString, QVariant> > &propertyList,
                                               bool isRootNode)
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{
    if (typeString.isEmpty())
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        throw InvalidArgumentException(__LINE__, __FUNCTION__, __FILE__, tr("invalid type"));
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    qint32 internalId = 0;

    if (!isRootNode)
        internalId = m_internalIdCounter++;

    InternalNode::Pointer newInternalNodePointer = InternalNode::create(typeString, majorVersion, minorVersion, internalId);
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    typedef QPair<QString, QVariant> PropertyPair;

    foreach (const PropertyPair &propertyPair, propertyList) {
        newInternalNodePointer->addVariantProperty(propertyPair.first);
        newInternalNodePointer->variantProperty(propertyPair.first)->setValue(propertyPair.second);
    }

    m_nodeSet.insert(newInternalNodePointer);
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    m_internalIdNodeHash.insert(newInternalNodePointer->internalId(), newInternalNodePointer);
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    notifyNodeCreated(newInternalNodePointer);

    return newInternalNodePointer;
}

void ModelPrivate::removeNodeFromModel(const InternalNodePointer &node)
{
    Q_ASSERT(!node.isNull());

    node->resetParentProperty();

    if (!node->id().isEmpty())
        m_idNodeHash.remove(node->id());
    node->setValid(false);
    m_nodeSet.remove(node);
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    m_internalIdNodeHash.remove(node->internalId());
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}

void ModelPrivate::removeAllSubNodes(const InternalNode::Pointer &node)
{
    foreach (const InternalNodePointer &subNode, node->allSubNodes()) {
        removeNodeFromModel(subNode);
    }
}

void ModelPrivate::removeNode(const InternalNode::Pointer &node)
{
    Q_ASSERT(!node.isNull());

    AbstractView::PropertyChangeFlags propertyChangeFlags = AbstractView::NoAdditionalChanges;

    notifyNodeAboutToBeRemoved(node);

    InternalNodeAbstractProperty::Pointer oldParentProperty(node->parentProperty());

    removeAllSubNodes(node);
    removeNodeFromModel(node);

    InternalNode::Pointer parentNode;
    QString parentPropertyName;
    if (oldParentProperty) {
        parentNode = oldParentProperty->propertyOwner();
        parentPropertyName = oldParentProperty->name();
    }

    if (oldParentProperty && oldParentProperty->isEmpty()) {
        removePropertyWithoutNotification(oldParentProperty);

        propertyChangeFlags |= AbstractView::EmptyPropertiesRemoved;
    }

    notifyNodeRemoved(node, parentNode, parentPropertyName, propertyChangeFlags);
}

InternalNode::Pointer ModelPrivate::rootNode() const
{
    return m_rootInternalNode;
}

MetaInfo ModelPrivate::metaInfo() const
{
    return m_metaInfo;
}

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void ModelPrivate::setMetaInfo(const MetaInfo &metaInfo)
{
    m_metaInfo = metaInfo;
}

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void ModelPrivate::changeNodeId(const InternalNode::Pointer& internalNodePointer, const QString &id)
{
    const QString oldId = internalNodePointer->id();

    internalNodePointer->setId(id);
    if (!oldId.isEmpty())
        m_idNodeHash.remove(oldId);
    if (!id.isEmpty())
        m_idNodeHash.insert(id, internalNodePointer);
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    try {
        notifyNodeIdChanged(internalNodePointer, id, oldId);
    } catch (RewritingException &e) {
        throw InvalidIdException(__LINE__, __FUNCTION__, __FILE__, id, e.description());
    }
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}

void ModelPrivate::checkPropertyName(const QString &propertyName)
{
    if (propertyName.isEmpty()) {
        Q_ASSERT_X(propertyName.isEmpty(), Q_FUNC_INFO, "empty property name");
        throw InvalidPropertyException(__LINE__, __FUNCTION__, __FILE__, "<empty property name>");
    }

    if (propertyName == "id") {
        Q_ASSERT_X(propertyName != "id", Q_FUNC_INFO, "cannot add property id");
        throw InvalidPropertyException(__LINE__, __FUNCTION__, __FILE__, propertyName);
    }
}

void ModelPrivate::notifyAuxiliaryDataChanged(const InternalNodePointer &internalNode, const QString &name, const QVariant &data)
{
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    bool resetModel = false;
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    QString description;
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    try {
        if (rewriterView()) {
            ModelNode node(internalNode, model(), rewriterView());
            rewriterView()->auxiliaryDataChanged(node, name, data);
        }
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }

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    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
        Q_ASSERT(view != 0);
        ModelNode node(internalNode, model(), view.data());
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        view->auxiliaryDataChanged(node, name, data);

    }

    if (nodeInstanceView()) {
        ModelNode node(internalNode, model(), nodeInstanceView());
        nodeInstanceView()->auxiliaryDataChanged(node, name, data);
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    }

    if (resetModel) {
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        resetModelByRewriter(description);
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    }
}

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void ModelPrivate::notifyRootNodeTypeChanged(const QString &type, int majorVersion, int minorVersion)
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{
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    bool resetModel = false;
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    QString description;
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    try {
        if (rewriterView())
            rewriterView()->rootNodeTypeChanged(type, majorVersion, minorVersion);
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }

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    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
        Q_ASSERT(view != 0);
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        view->rootNodeTypeChanged(type, majorVersion, minorVersion);

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    }

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    if (nodeInstanceView())
        nodeInstanceView()->rootNodeTypeChanged(type, majorVersion, minorVersion);

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    if (resetModel) {
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        resetModelByRewriter(description);
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    }
}

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void ModelPrivate::notifyInstancePropertyChange(const QList<QPair<ModelNode, QString> > &propertyPairList)
{
    // no need to notify the rewriter or the instance view

    typedef QPair<ModelNode, QString> ModelNodePropertyPair;
    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
        Q_ASSERT(view != 0);

        QList<QPair<ModelNode, QString> > adaptedPropertyList;
        foreach (const ModelNodePropertyPair &propertyPair, propertyPairList) {
            ModelNodePropertyPair newPair(ModelNode(propertyPair.first.internalNode(), model(), view.data()), propertyPair.second);
            adaptedPropertyList.append(newPair);
        }

        view->instancePropertyChange(adaptedPropertyList);
    }
}

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void ModelPrivate::notifyInstancesCompleted(const QVector<ModelNode> &nodeVector)
{
    bool resetModel = false;
    QString description;

    QVector<Internal::InternalNode::Pointer> internalVector(toInternalNodeVector(nodeVector));

    try {
        if (rewriterView())
            rewriterView()->instancesCompleted(toModelNodeVector(internalVector, rewriterView()));
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }

    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
        Q_ASSERT(view != 0);
        view->instancesCompleted(toModelNodeVector(internalVector, view.data()));
    }

    if (nodeInstanceView()) {
        nodeInstanceView()->instancesCompleted(toModelNodeVector(internalVector, nodeInstanceView()));
    }

    if (resetModel) {
        resetModelByRewriter(description);
    }
}

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void ModelPrivate::notifyCustomNotification(const AbstractView *senderView, const QString &identifier, const QList<ModelNode> &nodeList, const QList<QVariant> &data)
{
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    bool resetModel = false;
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    QString description;
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    QList<Internal::InternalNode::Pointer> internalList(toInternalNodeList(nodeList));
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    try {
        if (rewriterView())
            rewriterView()->customNotification(senderView, identifier, toModelNodeList(internalList, rewriterView()), data);
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }

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    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
        Q_ASSERT(view != 0);
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        view->customNotification(senderView, identifier, toModelNodeList(internalList, view.data()), data);
    }

    if (nodeInstanceView()) {
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        nodeInstanceView()->customNotification(senderView, identifier, toModelNodeList(internalList, nodeInstanceView()), data);
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    }

    if (resetModel) {
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        resetModelByRewriter(description);
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    }
}


void ModelPrivate::notifyPropertiesRemoved(const QList<PropertyPair> &propertyPairList)
{
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    bool resetModel = false;
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    QString description;
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    try {
        if (rewriterView()) {
            QList<AbstractProperty> propertyList;
            foreach (const PropertyPair &propertyPair, propertyPairList) {
                AbstractProperty newProperty(propertyPair.second, propertyPair.first, model(), rewriterView());
                propertyList.append(newProperty);
            }

            rewriterView()->propertiesRemoved(propertyList);
        }
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }

    if (nodeInstanceView()) {
        QList<AbstractProperty> propertyList;
        foreach (const PropertyPair &propertyPair, propertyPairList) {
            AbstractProperty newProperty(propertyPair.second, propertyPair.first, model(), nodeInstanceView());
            propertyList.append(newProperty);
        }

        nodeInstanceView()->propertiesRemoved(propertyList);
    }

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    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
        QList<AbstractProperty> propertyList;
        Q_ASSERT(view != 0);
        foreach (const PropertyPair &propertyPair, propertyPairList) {
            AbstractProperty newProperty(propertyPair.second, propertyPair.first, model(), view.data());
            propertyList.append(newProperty);
        }
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        view->propertiesRemoved(propertyList);
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    }

    if (resetModel) {
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        resetModelByRewriter(description);
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    }
}

void ModelPrivate::notifyPropertiesAboutToBeRemoved(const QList<InternalProperty::Pointer> &internalPropertyList)
{
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    bool resetModel = false;
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    QString description;
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    try {
        if (rewriterView()) {
            QList<AbstractProperty> propertyList;
            foreach (const InternalProperty::Pointer &property, internalPropertyList) {
                AbstractProperty newProperty(property->name(), property->propertyOwner(), model(), rewriterView());
                propertyList.append(newProperty);
            }

            rewriterView()->propertiesAboutToBeRemoved(propertyList);
        }
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }

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    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
        QList<AbstractProperty> propertyList;
        Q_ASSERT(view != 0);
        foreach (const InternalProperty::Pointer &property, internalPropertyList) {
            AbstractProperty newProperty(property->name(), property->propertyOwner(), model(), view.data());
            propertyList.append(newProperty);
        }
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        try {
            view->propertiesAboutToBeRemoved(propertyList);
        } catch (RewritingException &e) {
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            description = e.description();
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            resetModel = true;
        }
    }

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    if (nodeInstanceView()) {
        QList<AbstractProperty> propertyList;
        foreach (const InternalProperty::Pointer &property, internalPropertyList) {
            AbstractProperty newProperty(property->name(), property->propertyOwner(), model(), nodeInstanceView());
            propertyList.append(newProperty);
        }

        nodeInstanceView()->propertiesAboutToBeRemoved(propertyList);
    }

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    if (resetModel) {
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        resetModelByRewriter(description);
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    }
}

void ModelPrivate::setAuxiliaryData(const InternalNode::Pointer& node, const QString &name, const QVariant &data)
{
    node->setAuxiliaryData(name, data);
    notifyAuxiliaryDataChanged(node, name,data);
}

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void ModelPrivate::resetModelByRewriter(const QString &description)
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{
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    if (rewriterView()) {
        rewriterView()->resetToLastCorrectQml();
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    }
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    throw RewritingException(__LINE__, __FUNCTION__, __FILE__, description, rewriterView()->textModifierContent());
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}

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void ModelPrivate::attachView(AbstractView *view)
{
    if (m_viewList.contains(view))
       return;

    m_viewList.append(view);

    view->modelAttached(m_q);
}

void ModelPrivate::detachView(AbstractView *view, bool notifyView)
{
    if (notifyView)
        view->modelAboutToBeDetached(m_q);
    m_viewList.removeOne(view);
}

void ModelPrivate::notifyNodeCreated(const InternalNode::Pointer &newInternalNodePointer)
{
    Q_ASSERT(newInternalNodePointer->isValid());

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    bool resetModel = false;
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    QString description;
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    try {
        if (rewriterView()) {
            ModelNode createdNode(newInternalNodePointer, model(), rewriterView());
            rewriterView()->nodeCreated(createdNode);
        }
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }

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    if (nodeInstanceView()) {
        ModelNode createdNode(newInternalNodePointer, model(), nodeInstanceView());
        nodeInstanceView()->nodeCreated(createdNode);
    }

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    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
        Q_ASSERT(view != 0);
        ModelNode createdNode(newInternalNodePointer, model(), view.data());
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        view->nodeCreated(createdNode);
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    }
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    if (resetModel) {
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        resetModelByRewriter(description);
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    }
}

void ModelPrivate::notifyNodeAboutToBeRemoved(const InternalNode::Pointer &nodePointer)
{
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    bool resetModel = false;
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    QString description;
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    try {
        if (rewriterView()) {
            ModelNode node(nodePointer, model(), rewriterView());
            rewriterView()->nodeAboutToBeRemoved(node);
        }
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }

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    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
        Q_ASSERT(view != 0);
        ModelNode node(nodePointer, model(), view.data());
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        view->nodeAboutToBeRemoved(node);
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    }
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    if (nodeInstanceView()) {
        ModelNode node(nodePointer, model(), nodeInstanceView());
        nodeInstanceView()->nodeAboutToBeRemoved(node);
    }
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    if (resetModel) {
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        resetModelByRewriter(description);
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    }
}

void ModelPrivate::notifyNodeRemoved(const InternalNodePointer &nodePointer, const InternalNodePointer &parentNodePointer, const QString &parentPropertyName, AbstractView::PropertyChangeFlags propertyChange)
{
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    bool resetModel = false;
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    QString description;
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    try {
        if (rewriterView()) {
            ModelNode node(nodePointer, model(), rewriterView());
            NodeAbstractProperty parentProperty(parentPropertyName, parentNodePointer, model(), rewriterView());
            rewriterView()->nodeRemoved(node, parentProperty, propertyChange);
        }
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }

    if (nodeInstanceView()) {
        ModelNode node(nodePointer, model(), nodeInstanceView());
        NodeAbstractProperty parentProperty(parentPropertyName, parentNodePointer, model(), nodeInstanceView());
        nodeInstanceView()->nodeRemoved(node, parentProperty, propertyChange);
    }

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    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
        Q_ASSERT(view != 0);
        ModelNode node(nodePointer, model(), view.data());
        NodeAbstractProperty parentProperty(parentPropertyName, parentNodePointer, model(), view.data());
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        view->nodeRemoved(node, parentProperty, propertyChange);

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    }
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    if (resetModel) {
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        resetModelByRewriter(description);
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    }
}

void ModelPrivate::notifyNodeIdChanged(const InternalNode::Pointer& nodePointer, const QString& newId, const QString& oldId)
{
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    bool resetModel = false;
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    QString description;
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    try {
        if (rewriterView()) {
            ModelNode node(nodePointer, model(), rewriterView());
            rewriterView()->nodeIdChanged(node, newId, oldId);
        }
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }

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    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
        Q_ASSERT(view != 0);
        ModelNode node(nodePointer, model(), view.data());
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        view->nodeIdChanged(node, newId, oldId);
    }

    if (nodeInstanceView()) {
        ModelNode node(nodePointer, model(), nodeInstanceView());
        nodeInstanceView()->nodeIdChanged(node, newId, oldId);
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    }
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    if (resetModel) {
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        resetModelByRewriter(description);
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    }
}

void ModelPrivate::notifyBindingPropertiesChanged(const QList<InternalBindingPropertyPointer> &internalBropertyList, AbstractView::PropertyChangeFlags propertyChange)
{
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    bool resetModel = false;
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    QString description;
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    try {
        if (rewriterView()) {
            QList<BindingProperty> propertyList;
            foreach (const InternalBindingPropertyPointer &bindingProperty, internalBropertyList) {
                propertyList.append(BindingProperty(bindingProperty->name(), bindingProperty->propertyOwner(), model(), rewriterView()));
            }
            rewriterView()->bindingPropertiesChanged(propertyList, propertyChange);
        }
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }

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    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
        Q_ASSERT(view != 0);
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        QList<BindingProperty> propertyList;
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        foreach (const InternalBindingPropertyPointer &bindingProperty, internalBropertyList) {
            propertyList.append(BindingProperty(bindingProperty->name(), bindingProperty->propertyOwner(), model(), view.data()));
        }
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        view->bindingPropertiesChanged(propertyList, propertyChange);

    }

    if (nodeInstanceView()) {
        QList<BindingProperty> propertyList;
        foreach (const InternalBindingPropertyPointer &bindingProperty, internalBropertyList) {
            propertyList.append(BindingProperty(bindingProperty->name(), bindingProperty->propertyOwner(), model(), nodeInstanceView()));
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        }
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        nodeInstanceView()->bindingPropertiesChanged(propertyList, propertyChange);
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    }
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    if (resetModel) {
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        resetModelByRewriter(description);
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    }
}

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void ModelPrivate::notifyScriptFunctionsChanged(const InternalNodePointer &internalNodePointer, const QStringList &scriptFunctionList)
{
    bool resetModel = false;
    QString description;

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    try {
        if (rewriterView()) {
            ModelNode node(internalNodePointer, model(), rewriterView());
            rewriterView()->scriptFunctionsChanged(node, scriptFunctionList);
        }
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }

    if (nodeInstanceView()) {
        ModelNode node(internalNodePointer, model(), nodeInstanceView());
        nodeInstanceView()->scriptFunctionsChanged(node, scriptFunctionList);
    }

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    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
        Q_ASSERT(view != 0);

        ModelNode node(internalNodePointer, model(), view.data());
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        view->scriptFunctionsChanged(node, scriptFunctionList);

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    }
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    if (resetModel) {
        resetModelByRewriter(description);
    }
}


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void ModelPrivate::notifyVariantPropertiesChanged(const InternalNodePointer &internalNodePointer, const QStringList& propertyNameList, AbstractView::PropertyChangeFlags propertyChange)
{
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    bool resetModel = false;
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    QString description;
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    try {
        if (rewriterView()) {
            QList<VariantProperty> propertyList;
            foreach (const QString &propertyName, propertyNameList) {
                Q_ASSERT(internalNodePointer->hasProperty(propertyName));
                Q_ASSERT(internalNodePointer->property(propertyName)->isVariantProperty());
                VariantProperty property(propertyName, internalNodePointer, model(), rewriterView());
                propertyList.append(property);
            }

            ModelNode node(internalNodePointer, model(), rewriterView());
            rewriterView()->variantPropertiesChanged(propertyList, propertyChange);
        }
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }


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    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
        QList<VariantProperty> propertyList;
        Q_ASSERT(view != 0);
        foreach (const QString &propertyName, propertyNameList) {
            Q_ASSERT(internalNodePointer->hasProperty(propertyName));
            Q_ASSERT(internalNodePointer->property(propertyName)->isVariantProperty());
            VariantProperty property(propertyName, internalNodePointer, model(), view.data());
            propertyList.append(property);
        }
        ModelNode node(internalNodePointer, model(), view.data());
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        view->variantPropertiesChanged(propertyList, propertyChange);

    }

    if (nodeInstanceView()) {
        QList<VariantProperty> propertyList;
        foreach (const QString &propertyName, propertyNameList) {
            Q_ASSERT(internalNodePointer->hasProperty(propertyName));
            Q_ASSERT(internalNodePointer->property(propertyName)->isVariantProperty());
            VariantProperty property(propertyName, internalNodePointer, model(), nodeInstanceView());
            propertyList.append(property);
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        }
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        ModelNode node(internalNodePointer, model(), nodeInstanceView());
        nodeInstanceView()->variantPropertiesChanged(propertyList, propertyChange);
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    }
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    if (resetModel) {
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        resetModelByRewriter(description);
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    }
}

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void ModelPrivate::notifyNodeAboutToBeReparent(const InternalNodePointer &internalNodePointer, const InternalNodeAbstractPropertyPointer &newPropertyParent, const InternalNodePointer &oldParent, const QString &oldPropertyName, AbstractView::PropertyChangeFlags propertyChange)
{
    bool resetModel = false;
    QString description;

    try {
        if (rewriterView()) {
            NodeAbstractProperty newProperty;
            NodeAbstractProperty oldProperty;

            if (!oldPropertyName.isEmpty() && oldParent->isValid())
                oldProperty = NodeAbstractProperty(oldPropertyName, oldParent, model(), rewriterView());

            if (!newPropertyParent.isNull())
                newProperty = NodeAbstractProperty(newPropertyParent, model(), rewriterView());
            ModelNode node(internalNodePointer, model(), rewriterView());
            rewriterView()->nodeAboutToBeReparented(node, newProperty, oldProperty, propertyChange);
        }
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }

    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
        NodeAbstractProperty newProperty;
        NodeAbstractProperty oldProperty;

        Q_ASSERT(!view.isNull());
        if (!oldPropertyName.isEmpty() && oldParent->isValid())
            oldProperty = NodeAbstractProperty(oldPropertyName, oldParent, model(), view.data());

        if (!newPropertyParent.isNull())
            newProperty = NodeAbstractProperty(newPropertyParent, model(), view.data());
        ModelNode node(internalNodePointer, model(), view.data());

        view->nodeAboutToBeReparented(node, newProperty, oldProperty, propertyChange);

    }

    if (nodeInstanceView()) {
        NodeAbstractProperty newProperty;
        NodeAbstractProperty oldProperty;

        if (!oldPropertyName.isEmpty() && oldParent->isValid())
            oldProperty = NodeAbstractProperty(oldPropertyName, oldParent, model(), nodeInstanceView());

        if (!newPropertyParent.isNull())
            newProperty = NodeAbstractProperty(newPropertyParent, model(), nodeInstanceView());
        ModelNode node(internalNodePointer, model(), nodeInstanceView());
        nodeInstanceView()->nodeAboutToBeReparented(node, newProperty, oldProperty, propertyChange);
    }

    if (resetModel) {
        resetModelByRewriter(description);
    }
}


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void ModelPrivate::notifyNodeReparent(const InternalNode::Pointer &internalNodePointer, const InternalNodeAbstractProperty::Pointer &newPropertyParent, const InternalNodePointer &oldParent, const QString &oldPropertyName, AbstractView::PropertyChangeFlags propertyChange)
{
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    bool resetModel = false;
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    QString description;
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    try {
        if (rewriterView()) {
            NodeAbstractProperty newProperty;
            NodeAbstractProperty oldProperty;

            if (!oldPropertyName.isEmpty() && oldParent->isValid())
                oldProperty = NodeAbstractProperty(oldPropertyName, oldParent, model(), rewriterView());

            if (!newPropertyParent.isNull())
                newProperty = NodeAbstractProperty(newPropertyParent, model(), rewriterView());
            ModelNode node(internalNodePointer, model(), rewriterView());
            rewriterView()->nodeReparented(node, newProperty, oldProperty, propertyChange);
        }
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }

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    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
        NodeAbstractProperty newProperty;
        NodeAbstractProperty oldProperty;
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        Q_ASSERT(!view.isNull());
        if (!oldPropertyName.isEmpty() && oldParent->isValid())
            oldProperty = NodeAbstractProperty(oldPropertyName, oldParent, model(), view.data());

        if (!newPropertyParent.isNull())
            newProperty = NodeAbstractProperty(newPropertyParent, model(), view.data());
        ModelNode node(internalNodePointer, model(), view.data());
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        view->nodeReparented(node, newProperty, oldProperty, propertyChange);

    }

    if (nodeInstanceView()) {
        NodeAbstractProperty newProperty;
        NodeAbstractProperty oldProperty;

        if (!oldPropertyName.isEmpty() && oldParent->isValid())
            oldProperty = NodeAbstractProperty(oldPropertyName, oldParent, model(), nodeInstanceView());

        if (!newPropertyParent.isNull())
            newProperty = NodeAbstractProperty(newPropertyParent, model(), nodeInstanceView());
        ModelNode node(internalNodePointer, model(), nodeInstanceView());
        nodeInstanceView()->nodeReparented(node, newProperty, oldProperty, propertyChange);
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    }
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    }
}
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void ModelPrivate::notifyNodeOrderChanged(const InternalNodeListPropertyPointer &internalListPropertyPointer,
                                          const InternalNode::Pointer &internalNodePointer,
                                          int oldIndex)
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{
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    bool resetModel = false;
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    QString description;
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    try {
        if (rewriterView())
            rewriterView()->nodeOrderChanged(NodeListProperty(internalListPropertyPointer, model(), rewriterView()),
                               ModelNode(internalNodePointer, model(), rewriterView()),
                               oldIndex);
    } catch (RewritingException &e) {
        description = e.description();
        resetModel = true;
    }

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    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
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        Q_ASSERT(!view.isNull());
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        view->nodeOrderChanged(NodeListProperty(internalListPropertyPointer, model(), view.data()),
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                                   ModelNode(internalNodePointer, model(), view.data()),
                                   oldIndex);
    }
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    if (nodeInstanceView())
        nodeInstanceView()->nodeOrderChanged(NodeListProperty(internalListPropertyPointer, model(), nodeInstanceView()),
                           ModelNode(internalNodePointer, model(), nodeInstanceView()),
                           oldIndex);

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    if (resetModel) {
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        resetModelByRewriter(description);
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    }
}

void ModelPrivate::setSelectedNodes(const QList<InternalNode::Pointer> &selectedNodeList)
{

    QList<InternalNode::Pointer> sortedSelectedList(selectedNodeList);
    QMutableListIterator<InternalNode::Pointer> iterator(sortedSelectedList);
    while (iterator.hasNext()) {
        InternalNode::Pointer node(iterator.next());
        if (!node->isValid())
            iterator.remove();
    }

    sortedSelectedList = sortedSelectedList.toSet().toList();
    qSort(sortedSelectedList);

    if (sortedSelectedList == m_selectedNodeList)
        return;


    const QList<InternalNode::Pointer> lastSelectedNodeList = m_selectedNodeList;
    m_selectedNodeList = sortedSelectedList;

    changeSelectedNodes(sortedSelectedList, lastSelectedNodeList);
}


void ModelPrivate::clearSelectedNodes()
{
    const QList<InternalNode::Pointer> lastSelectedNodeList = m_selectedNodeList;
    m_selectedNodeList.clear();
    changeSelectedNodes(m_selectedNodeList, lastSelectedNodeList);
}

QList<ModelNode> ModelPrivate::toModelNodeList(const QList<InternalNode::Pointer> &nodeList, AbstractView *view) const
{
    QList<ModelNode> newNodeList;
    foreach (const Internal::InternalNode::Pointer &node, nodeList)
        newNodeList.append(ModelNode(node, model(), view));

    return newNodeList;
}

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QVector<ModelNode> ModelPrivate::toModelNodeVector(const QVector<InternalNode::Pointer> &nodeVector, AbstractView *view) const
{
    QVector<ModelNode> newNodeVector;
    foreach (const Internal::InternalNode::Pointer &node, nodeVector)
        newNodeVector.append(ModelNode(node, model(), view));

    return newNodeVector;
}

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QList<Internal::InternalNode::Pointer> ModelPrivate::toInternalNodeList(const QList<ModelNode> &nodeList) const
{
    QList<Internal::InternalNode::Pointer> newNodeList;
    foreach (const ModelNode &node, nodeList)
        newNodeList.append(node.internalNode());

    return newNodeList;
}

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QVector<Internal::InternalNode::Pointer> ModelPrivate::toInternalNodeVector(const QVector<ModelNode> &nodeVector) const
{
    QVector<Internal::InternalNode::Pointer> newNodeVector;
    foreach (const ModelNode &node, nodeVector)
        newNodeVector.append(node.internalNode());

    return newNodeVector;
}

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void ModelPrivate::changeSelectedNodes(const QList<InternalNode::Pointer> &newSelectedNodeList,
                                       const QList<InternalNode::Pointer> &oldSelectedNodeList)
{
    foreach (const QWeakPointer<AbstractView> &view, m_viewList) {
        Q_ASSERT(view != 0);
        view->selectedNodesChanged(toModelNodeList(newSelectedNodeList, view.data()), toModelNodeList(oldSelectedNodeList, view.data()));
    }
}

QList<InternalNode::Pointer> ModelPrivate::selectedNodes() const
{
    foreach (const InternalNode::Pointer &node, m_selectedNodeList) {
        if (!node->isValid())
            throw new InvalidModelNodeException(__LINE__, __FUNCTION__, __FILE__);
    }

    return m_selectedNodeList;
}

void ModelPrivate::selectNode(const InternalNode::Pointer &node)
{
    if (selectedNodes().contains(node))
        return;

    QList<InternalNode::Pointer> selectedNodeList(selectedNodes());
    selectedNodeList += node;
    setSelectedNodes(selectedNodeList);
}

void ModelPrivate::deselectNode(const InternalNode::Pointer &node)
{
    QList<InternalNode::Pointer> selectedNodeList(selectedNodes());
    bool isRemoved = selectedNodeList.removeOne(node);

    if (!isRemoved)
        return;

    setSelectedNodes(selectedNodeList);
}

void ModelPrivate::removePropertyWithoutNotification(const InternalPropertyPointer &property)
{
    if (property->isNodeAbstractProperty()) {
        foreach (const InternalNode::Pointer & internalNode, property->toNodeAbstractProperty()->allSubNodes())
            removeNodeFromModel(internalNode);
    }

    property->remove();
}

static QList<PropertyPair> toPropertyPairList(const QList<InternalProperty::Pointer> &propertyList)
{
    QList<PropertyPair> propertyPairList;

    foreach (const InternalProperty::Pointer &property, propertyList)
        propertyPairList.append(qMakePair(property->propertyOwner(), property->name()));

    return propertyPairList;

}

void ModelPrivate::removeProperty(const InternalProperty::Pointer &property)
{
    notifyPropertiesAboutToBeRemoved(QList<InternalProperty::Pointer>() << property);

    QList<PropertyPair> propertyPairList = toPropertyPairList(QList<InternalProperty::Pointer>() << property);

    removePropertyWithoutNotification(property);

    notifyPropertiesRemoved(propertyPairList);
}

void ModelPrivate::setBindingProperty(const InternalNode::Pointer &internalNode, const QString &name, const QString &expression)
{
    AbstractView::PropertyChangeFlags propertyChange = AbstractView::NoAdditionalChanges;
    if (!internalNode->hasProperty(name)) {
        internalNode->addBindingProperty(name);
        propertyChange = AbstractView::PropertiesAdded;
    }

    InternalBindingProperty::Pointer bindingProperty = internalNode->bindingProperty(name);
    bindingProperty->setExpression(expression);
    notifyBindingPropertiesChanged(QList<InternalBindingPropertyPointer>() << bindingProperty, propertyChange);
}

void ModelPrivate::setVariantProperty(const InternalNode::Pointer &internalNode, const QString &name, const QVariant &value)
{
    AbstractView::PropertyChangeFlags propertyChange = AbstractView::NoAdditionalChanges;
    if (!internalNode->hasProperty(name)) {
        internalNode->addVariantProperty(name);
        propertyChange = AbstractView::PropertiesAdded;
    }

    internalNode->variantProperty(name)->setValue(value);
    internalNode->variantProperty(name)->resetDynamicTypeName();
    notifyVariantPropertiesChanged(internalNode, QStringList() << name, propertyChange);
}

void ModelPrivate::setDynamicVariantProperty(const InternalNodePointer &internalNode, const QString &name, const QString &dynamicPropertyType, const QVariant &value)
{
    AbstractView::PropertyChangeFlags propertyChange = AbstractView::NoAdditionalChanges;
    if (!internalNode->hasProperty(name)) {
        internalNode->addVariantProperty(name);
        propertyChange = AbstractView::PropertiesAdded;
    }

    internalNode->variantProperty(name)->setDynamicValue(dynamicPropertyType, value);
    notifyVariantPropertiesChanged(internalNode, QStringList() << name, propertyChange);
}

void ModelPrivate::setDynamicBindingProperty(const InternalNodePointer &internalNode, const QString &name, const QString &dynamicPropertyType, const QString &expression)
{
    AbstractView::PropertyChangeFlags propertyChange = AbstractView::NoAdditionalChanges;
    if (!internalNode->hasProperty(name)) {
        internalNode->addBindingProperty(name);
        propertyChange = AbstractView::PropertiesAdded;
    }

    InternalBindingProperty::Pointer bindingProperty = internalNode->bindingProperty(name);
    bindingProperty->setDynamicExpression(dynamicPropertyType, expression);
    notifyBindingPropertiesChanged(QList<InternalBindingPropertyPointer>() << bindingProperty, propertyChange);
}

void ModelPrivate::reparentNode(const InternalNode::Pointer &newParentNode, const QString &name, const InternalNode::Pointer &node, bool list)
{
    AbstractView::PropertyChangeFlags propertyChange = AbstractView::NoAdditionalChanges;
    if (!newParentNode->hasProperty(name)) {
        if (list)
            newParentNode->addNodeListProperty(name);
        else
            newParentNode->addNodeProperty(name);
        propertyChange |= AbstractView::PropertiesAdded;
    }

    InternalNodeAbstractProperty::Pointer oldParentProperty(node->parentProperty());
    InternalNode::Pointer oldParentNode;
    QString oldParentPropertyName;
    if (oldParentProperty && oldParentProperty->isValid()) {
        oldParentNode = node->parentProperty()->propertyOwner();
        oldParentPropertyName = node->parentProperty()->name();
    }

    InternalNodeAbstractProperty::Pointer newParentProperty(newParentNode->nodeAbstractProperty(name));
    Q_ASSERT(!newParentProperty.isNull());
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    notifyNodeAboutToBeReparent(node, newParentProperty, oldParentNode, oldParentPropertyName, propertyChange);

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    if (newParentProperty)
        node->setParentProperty(newParentProperty);


    if (oldParentProperty && oldParentProperty->isValid() && oldParentProperty->isEmpty()) {
        removePropertyWithoutNotification(oldParentProperty);

        propertyChange |= AbstractView::EmptyPropertiesRemoved;
    }

    notifyNodeReparent(node, newParentProperty, oldParentNode, oldParentPropertyName, propertyChange);
}

void ModelPrivate::clearParent(const InternalNodePointer &node)
{

    InternalNodeAbstractProperty::Pointer oldParentProperty(node->parentProperty());
    InternalNode::Pointer oldParentNode;
    QString oldParentPropertyName;
    if (oldParentProperty->isValid()) {
        oldParentNode = node->parentProperty()->propertyOwner();
        oldParentPropertyName = node->parentProperty()->name();
    }

    node->resetParentProperty();
    notifyNodeReparent(node, InternalNodeAbstractProperty::Pointer(), oldParentNode, oldParentPropertyName, AbstractView::NoAdditionalChanges);
}

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void ModelPrivate::changeRootNodeType(const QString &type, int majorVersion, int minorVersion)
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{
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    Q_ASSERT(!rootNode().isNull());
    rootNode()->setType(type);
    rootNode()->setMajorVersion(majorVersion);
    rootNode()->setMinorVersion(minorVersion);
    notifyRootNodeTypeChanged(type, majorVersion, minorVersion);
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}

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void ModelPrivate::setScriptFunctions(const InternalNode::Pointer &internalNode, const QStringList &scriptFunctionList)
{
    internalNode->setScriptFunctions(scriptFunctionList);

    notifyScriptFunctionsChanged(internalNode, scriptFunctionList);
}