/****************************************************************************
**
** Copyright (C) 2020 Paolo Angelelli <paolo.angelelli@gmail.com>
** Copyright (C) 2020 The Qt Company Ltd.
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** This file is part of the examples of the Qt Toolkit.
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import QtQuick 2.12
import QtPositioning 5.12
import Qt.labs.location 1.0
import Qt.labs.qmlmodels 1.0

DelegateChooser {
    id: dc
    role: "type"
    property color defaultColor: "grey"

    DelegateChoice {
        roleValue: "Point"
        delegate: MapCircleObject {
            property string geojsonType: "Point"
            property var props: modelData.properties
            geoShape: modelData.data
            radius: 20*1000
            border.width: 3
            /* The expression below is equivalent to:
               ((props !== undefined && props["color"] !== undefined) ? props["color"] :
               ((parent && parent.props !== undefined && parent.props["color"] !== undefined) ? parent.props["color"] : dc.defaultColor))
            */
            color: (props && props.color) || (parent && parent.props && parent.props.color) || dc.defaultColor
        }
    }

    DelegateChoice {
        roleValue: "LineString"
        delegate: MapPolylineObject {
            property string geojsonType: "LineString"
            property var props: modelData.properties
            geoShape: modelData.data
            line.width: 4
            line.color: (props && props.color) || (parent && parent.props && parent.props.color) || dc.defaultColor
        }
    }

    DelegateChoice {
        roleValue: "Polygon"
        delegate: MapPolygonObject {
            property string geojsonType: "Polygon"
            property var props: modelData.properties
            geoShape: modelData.data
            color: (props && props.color) || (parent && parent.props && parent.props.color) || dc.defaultColor
            border.width: 4
            border.color: 'black'
        }
    }

    DelegateChoice {
        roleValue: "MultiPoint"
        delegate: MapObjectView {
            property string geojsonType: "MultiPoint"
            property var props: modelData.properties
            model: modelData.data
            delegate: dc
        }
    }

    DelegateChoice {
        roleValue: "MultiLineString"
        delegate: MapObjectView {
            property string geojsonType: "MultiLineString"
            property var props: modelData.properties
            model: modelData.data
            delegate: dc
        }
    }

    DelegateChoice {
        roleValue: "MultiPolygon"
        delegate: MapObjectView {
            property string geojsonType: "MultiPolygon"
            property var props: modelData.properties
            model: modelData.data
            delegate: dc
        }
    }

    DelegateChoice {
        roleValue: "GeometryCollection"
        delegate: MapObjectView {
            property string geojsonType: "GeometryCollection"
            property var props: modelData.properties
            model: modelData.data
            delegate: dc
        }
    }

    // Features are explicitly not generated by the parser, but converted straight to their content + the properties.

    DelegateChoice {
        roleValue: "FeatureCollection"
        delegate: MapObjectView {
            property string geojsonType: "FeatureCollection"
            property var props: modelData.properties
            model: modelData.data
            delegate: dc
        }
    }
}