MeasurementAreaMapVisual.qml

/****************************************************************************
 *
 *   (c) 2009-2016 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
 *
 * QGroundControl is licensed according to the terms in the file
 * COPYING.md in the root of the source code directory.
 *
 ****************************************************************************/

import QtQuick          2.3
import QtQuick.Controls 1.2
import QtLocation       5.3
import QtPositioning    5.3

import QGroundControl               1.0
import QGroundControl.ScreenTools   1.0
import QGroundControl.Palette       1.0
import QGroundControl.Controls      1.0
import QGroundControl.FlightMap     1.0

Item {
    id: _root

    property var map: undefined        ///< Map control to place item in
    property var geoArea: undefined   ///< GeoArea derived class

    opacity: 0.3

    signal clicked(int sequenceNumber)

    Component.onCompleted: {
        console.assert(map !== undefined, "please set the map property")
        console.assert(geoArea !== undefined, "please set the geoArea property")
    }

    // Area polygon
    QGCMapPolygonVisuals {
        id:                 mapPolygonVisuals

        mapControl:         _root.map
        mapPolygon:         _root.geoArea
        interactive:        geoArea.interactive
        borderWidth:        3
        borderColor:        "green"
        interiorColor:      "green"
        altColor:           QGroundControl.globalPalette.surveyPolygonTerrainCollision
        z: 					QGroundControl.zOrderMapItems-1
        interiorOpacity:    _root.opacity
    }

    // Add Snake tiles to the map
    Component {
        id: tileComponent

        Item{
            id: root

            property MapPolygon polygon

            MapPolygon{
                id:mapPolygon
                path:           []
            }

            Component.onCompleted: {
                polygon = mapPolygon
                map.addMapItem(mapPolygon)
            }

            Component.onDestruction: {
                map.removeMapItem(mapPolygon)
            }
        }
    }

    function getColor(progress) {
        if (progress === 0)
            return "transparent"
        if (progress < 33)
            return "orange"
        if (progress < 66)
            return "yellow"
        if (progress < 100)
            return "greenyellow"
        return "limegreen"
    }

    Repeater {
        id: progressRepeater
        property bool enable: geoArea.showTiles.value
        model: enable ? geoArea.tiles : []

        Item{
            property var _tileComponent
            property int _progress: _root.geoArea.progress[index] ?
                                        _root.geoArea.progress[index] : 0

            Component.onCompleted: {
                _tileComponent = tileComponent.createObject(map)

                _tileComponent.polygon.path =
                        Qt.binding(function(){return object.path})
                _tileComponent.polygon.opacity = 0.6
                _tileComponent.polygon.border.color = "black"
                _tileComponent.polygon.border.width = 1
                _tileComponent.polygon.color =
                        Qt.binding(function(){return getColor(_progress)})
            }

            Component.onDestruction: {
                _tileComponent.destroy()
            }

        }
    }
}