QG4/custom-example/res/MainToolbar/CustomGPSIndicator.qml

/****************************************************************************
 *
 * (c) 2009-2019 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.
 *
 * @file
 *   @author Gus Grubba <gus@auterion.com>
 */

import QtQuick          2.11
import QtQuick.Controls 1.4
import QtQuick.Layouts  1.11

import QGroundControl                       1.0
import QGroundControl.Controls              1.0
import QGroundControl.MultiVehicleManager   1.0
import QGroundControl.ScreenTools           1.0
import QGroundControl.Palette               1.0

import Custom.Widgets                       1.0

//-------------------------------------------------------------------------
//-- GPS Indicator
Item {
    id:                     _root
    width:                  gpsRow.width
    anchors.top:            parent.top
    anchors.bottom:         parent.bottom

    function getGPSSignal() {
        if(!activeVehicle || activeVehicle.gps.count.rawValue < 1 || activeVehicle.gps.hdop.rawValue > 1.4) {
            return 0;
        } else if(activeVehicle.gps.hdop.rawValue < 1.0) {
            return 100;
        } else if(activeVehicle.gps.hdop.rawValue < 1.1) {
            return 75;
        } else if(activeVehicle.gps.hdop.rawValue < 1.2) {
            return 50;
        } else {
            return 25;
        }
    }

    Component {
        id: gpsInfo

        Rectangle {
            width:  gpsCol.width   + ScreenTools.defaultFontPixelWidth  * 3
            height: gpsCol.height  + ScreenTools.defaultFontPixelHeight * 2
            radius: ScreenTools.defaultFontPixelHeight * 0.5
            color:  qgcPal.window

            Column {
                id:                 gpsCol
                spacing:            ScreenTools.defaultFontPixelHeight * 0.5
                width:              Math.max(gpsGrid.width, gpsLabel.width)
                anchors.margins:    ScreenTools.defaultFontPixelHeight
                anchors.centerIn:   parent

                QGCLabel {
                    id:             gpsLabel
                    text:           (activeVehicle && activeVehicle.gps.count.value >= 0) ? qsTr("GPS Status") : qsTr("GPS Data Unavailable")
                    font.family:    ScreenTools.demiboldFontFamily
                    anchors.horizontalCenter: parent.horizontalCenter
                }

                GridLayout {
                    id:                 gpsGrid
                    visible:            (activeVehicle && activeVehicle.gps.count.value >= 0)
                    anchors.margins:    ScreenTools.defaultFontPixelHeight
                    columnSpacing:      ScreenTools.defaultFontPixelWidth
                    anchors.horizontalCenter: parent.horizontalCenter
                    columns: 2

                    QGCLabel { text: qsTr("GPS Count:") }
                    QGCLabel { text: activeVehicle ? activeVehicle.gps.count.valueString : qsTr("N/A", "No data to display") }
                    QGCLabel { text: qsTr("GPS Lock:") }
                    QGCLabel { text: activeVehicle ? activeVehicle.gps.lock.enumStringValue : qsTr("N/A", "No data to display") }
                    QGCLabel { text: qsTr("HDOP:") }
                    QGCLabel { text: activeVehicle ? activeVehicle.gps.hdop.valueString : qsTr("--.--", "No data to display") }
                    QGCLabel { text: qsTr("VDOP:") }
                    QGCLabel { text: activeVehicle ? activeVehicle.gps.vdop.valueString : qsTr("--.--", "No data to display") }
                    QGCLabel { text: qsTr("Course Over Ground:") }
                    QGCLabel { text: activeVehicle ? activeVehicle.gps.courseOverGround.valueString : qsTr("--.--", "No data to display") }
                }
            }
        }
    }

    Row {
        id:             gpsRow
        anchors.top:    parent.top
        anchors.bottom: parent.bottom
        spacing:        ScreenTools.defaultFontPixelWidth * 0.25
        QGCColoredImage {
            width:              height
            anchors.top:        parent.top
            anchors.bottom:     parent.bottom
            sourceSize.height:  height
            source:             "/qmlimages/Gps.svg"
            color:              qgcPal.text
            fillMode:           Image.PreserveAspectFit
            opacity:            getGPSSignal() > 0 ? 1 : 0.5
        }
        CustomSignalStrength {
            anchors.verticalCenter: parent.verticalCenter
            size:                   parent.height * 0.75
            percent:                getGPSSignal()
        }
    }

    MouseArea {
        anchors.fill:   parent
        onClicked: {
            mainWindow.showPopUp(_root, gpsInfo)
        }
    }
}