FlightMap.qml 5.41 KB
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/****************************************************************************
 *
 *   (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.
 *
 ****************************************************************************/
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import QtQuick          2.3
import QtQuick.Controls 1.2
import QtLocation       5.3
import QtPositioning    5.3
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import QGroundControl                       1.0
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import QGroundControl.FactSystem            1.0
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import QGroundControl.Controls              1.0
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import QGroundControl.FlightMap             1.0
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import QGroundControl.ScreenTools           1.0
import QGroundControl.MultiVehicleManager   1.0
import QGroundControl.Vehicle               1.0
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import QGroundControl.Mavlink               1.0
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import QGroundControl.QGCPositionManager    1.0
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Map {
    id: _map
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    zoomLevel:                  QGroundControl.flightMapZoom
    center:                     QGroundControl.flightMapPosition
    gesture.flickDeceleration:  3000
    plugin:                     Plugin { name: "QGroundControl" }

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    property string mapName:                        'defaultMap'
    property bool   isSatelliteMap:                 activeMapType.name.indexOf("Satellite") > -1 || activeMapType.name.indexOf("Hybrid") > -1
    property var    gcsPosition:                    QtPositioning.coordinate()
    property bool   userPanned:                     false   ///< true: the user has manually panned the map
    property bool   allowGCSLocationCenter:         false   ///< true: map will center/zoom to gcs location one time
    property bool   allowVehicleLocationCenter:     false   ///< true: map will center/zoom to vehicle location one time
    property bool   firstGCSPositionReceived:       false   ///< true: first gcs position update was responded to
    property bool   firstVehiclePositionReceived:   false   ///< true: first vehicle position update was responded to
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    property bool   planView:                       false   ///< true: map being using for Plan view, items should be draggable
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    readonly property real  maxZoomLevel: 20

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    property var    _activeVehicle:                 QGroundControl.multiVehicleManager.activeVehicle
    property var    activeVehicleCoordinate:        _activeVehicle ? _activeVehicle.coordinate : QtPositioning.coordinate()

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    function setVisibleRegion(region) {
        // This works around a bug on Qt where if you set a visibleRegion and then the user moves or zooms the map
        // and then you set the same visibleRegion the map will not move/scale appropriately since it thinks there
        // is nothing to do.
        _map.visibleRegion = QtPositioning.rectangle(QtPositioning.coordinate(0, 0), QtPositioning.coordinate(0, 0))
        _map.visibleRegion = region
    }

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    function _possiblyCenterToVehiclePosition() {
        if (!firstVehiclePositionReceived && allowVehicleLocationCenter && activeVehicleCoordinate.isValid) {
            firstVehiclePositionReceived = true
            center = activeVehicleCoordinate
            zoomLevel = QGroundControl.flightMapInitialZoom
        }
    }

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    ExclusiveGroup { id: mapTypeGroup }
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    // Update ground station position
    Connections {
        target: QGroundControl.qgcPositionManger
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        onLastPositionUpdated: {
            if (valid && lastPosition.latitude && Math.abs(lastPosition.latitude)  > 0.001 && lastPosition.longitude && Math.abs(lastPosition.longitude)  > 0.001) {
                gcsPosition = QtPositioning.coordinate(lastPosition.latitude,lastPosition.longitude)
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                if (!firstGCSPositionReceived && !firstVehiclePositionReceived && allowGCSLocationCenter) {
                    firstGCSPositionReceived = true
                    center = gcsPosition
                    zoomLevel = QGroundControl.flightMapInitialZoom
                }
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            }
        }
    }
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    // We track whether the user has panned or not to correctly handle automatic map positioning
    Connections {
        target: gesture

        onPanFinished:      userPanned = true
        onFlickFinished:    userPanned = true
    }

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    function updateActiveMapType() {
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        var settings =  QGroundControl.settingsManager.flightMapSettings
        var fullMapName = settings.mapProvider.enumStringValue + " " + settings.mapType.enumStringValue
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        for (var i = 0; i < _map.supportedMapTypes.length; i++) {
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            if (fullMapName === _map.supportedMapTypes[i].name) {
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                _map.activeMapType = _map.supportedMapTypes[i]
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                return
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            }
        }
    }
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    onActiveVehicleCoordinateChanged: _possiblyCenterToVehiclePosition()

    Component.onCompleted: {
        updateActiveMapType()
        _possiblyCenterToVehiclePosition()
    }
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    Connections {
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        target:             QGroundControl.settingsManager.flightMapSettings.mapType
        onRawValueChanged:  updateActiveMapType()
    }

    Connections {
        target:             QGroundControl.settingsManager.flightMapSettings.mapProvider
        onRawValueChanged:  updateActiveMapType()
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    }

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    /// Ground Station location
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    MapQuickItem {
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        anchorPoint.x:  sourceItem.anchorPointX
        anchorPoint.y:  sourceItem.anchorPointY
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        visible:        gcsPosition.isValid
        coordinate:     gcsPosition
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        sourceItem:     MissionItemIndexLabel {
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        label:          QGroundControl.appName.charAt(0)
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        }
    }
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} // Map