qt-creator/src/plugins/qmldesigner/components/itemlibrary/itemlibrarysectionmodel.cpp

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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
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** This file is part of Qt Creator.
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#include "itemlibrarysectionmodel.h"

#include "itemlibraryitem.h"

namespace QmlDesigner {

ItemLibrarySectionModel::ItemLibrarySectionModel(QObject *parent) :
    QAbstractListModel(parent)
{
    addRoleNames();
}

ItemLibrarySectionModel::~ItemLibrarySectionModel()
{
    clearItems();
}

int ItemLibrarySectionModel::rowCount(const QModelIndex &) const
{
    return m_itemList.count();
}

QVariant ItemLibrarySectionModel::data(const QModelIndex &index, int role) const
{
    if (!index.isValid() || index.row() + 1 > m_itemList.count()) {
        qDebug() << Q_FUNC_INFO << "invalid index requested";
        return QVariant();
    }

    if (m_roleNames.contains(role)) {
        QVariant value = m_itemList.at(index.row())->property(m_roleNames.value(role));

        if (ItemLibrarySectionModel* model = qobject_cast<ItemLibrarySectionModel *>(value.value<QObject*>()))
            return QVariant::fromValue(model);

        return m_itemList.at(index.row())->property(m_roleNames.value(role));
    }

    qWarning() << Q_FUNC_INFO << "invalid role requested";

    return QVariant();
}

void ItemLibrarySectionModel::clearItems()
{
    beginResetModel();
    endResetModel();
}

void ItemLibrarySectionModel::addItem(ItemLibraryItem *element)
{
    m_itemList.append(element);

    element->setVisible(true);
}

const QList<ItemLibraryItem *> &ItemLibrarySectionModel::items() const
{
    return m_itemList;
}

void ItemLibrarySectionModel::resetModel()
{
    beginResetModel();
    endResetModel();
}

void ItemLibrarySectionModel::addRoleNames()
{
    int role = 0;
    for (int propertyIndex = 0; propertyIndex < ItemLibraryItem::staticMetaObject.propertyCount(); ++propertyIndex) {
        QMetaProperty property = ItemLibraryItem::staticMetaObject.property(propertyIndex);
        m_roleNames.insert(role, property.name());
        ++role;
    }

    setRoleNames(m_roleNames);
}

} // namespace QmlDesigner