// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only

/*!
    \page qtcharts-qmlf1legends-example.html
    \title Using List Models as Data Sources in QML
    \brief Implements an F1 Legends Chart to demonstrate List Models as Data Sources.
    \include qmlchartsgallery.qdocinc

    \image examples_qmlf1legends.png {Screenshot showing driver speeds displayed as
           three line charts from different people stacked on top of each other,
           Fittipaldi is blue, Steward is green, and Hunt is orange}

    Let's define an empty ChartView first:

    \snippet  qmlchartsgallery/qml/f1legends/F1Legends.qml 1

    Our ListModel uses hard-coded test data. In a real application the data
    source would be a timing system.

    \snippet qmlchartsgallery/qml/f1legends/SpeedsList.qml 1
    \dots
    \snippet qmlchartsgallery/qml/f1legends/F1Legends.qml 2

    The data is parsed with a timer. The line series representing each driver
    are created on the fly.

    \snippet qmlchartsgallery/qml/f1legends/F1Legends.qml 3
*/
