app.cpp Example File

    /* Copyright (c) 2012, 2013  BlackBerry Limited.
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    * http://www.apache.org/licenses/LICENSE-2.0
    *
    * Unless required by applicable law or agreed to in writing, software
    * distributed under the License is distributed on an "AS IS" BASIS,
    * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    * See the License for the specific language governing permissions and
    * limitations under the License.
    */

    #include <bb/cascades/AbstractPane>
    #include <bb/cascades/Application>
    #include <bb/cascades/QmlDocument>

    #include "app.hpp"

    #include "filtereddatamodel.hpp"
    #include "vegetablesdatamodel.hpp"

    using namespace bb::cascades;

    App::App(QObject *parent)
        : QObject(parent)
        , m_model(0)
    {
        // Create the source data model
        VegetablesDataModel *vegetablesModel = new VegetablesDataModel(this);

        // Create the filtered data model and pass the source model
        m_model = new FilteredDataModel(vegetablesModel, this);

        QmlDocument *qml = QmlDocument::create("asset:///main.qml").parent(this);
        qml->setContextProperty("_model", m_model);
        qml->setContextProperty("_app", this);

        AbstractPane* root = qml->createRootObject<AbstractPane>();
        Application::instance()->setScene(root);
    }

    void App::selectionChanged(const QVariantList &indexPath, bool selected)
    {
        if (indexPath.size() != 1 || !selected)
            return; // Not interested

        // Selected a header item!
        const int selection = indexPath[0].toInt();

        // Toggle the expanded state of the selected header
        m_model->expandHeader(selection, !m_model->isHeaderExpanded(selection));
    }