- Qt 5.5
- Qt Location
- Map Viewer (QML)
- RouteAddress.qml Example File
- Qt 5.5.1 Reference Documentation

# RouteAddress.qml Example File

mapviewer/forms/RouteAddress.qml

    /****************************************************************************
    **
    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** This file is part of the examples of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:BSD$
    ** You may use this file under the terms of the BSD license as follows:
    **
    ** "Redistribution and use in source and binary forms, with or without
    ** modification, are permitted provided that the following conditions are
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    **     contributors may be used to endorse or promote products derived
    **     from this software without specific prior written permission.
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    import QtQuick 2.5
    import QtLocation 5.5
    import QtPositioning 5.5

    RouteAddressForm {
        property alias plugin : tempGeocodeModel.plugin;
        property variant fromAddress;
        property variant toAddress;
        signal showMessage(string topic, string message)
        signal showRoute(variant startCoordinate,variant endCoordinate)
        signal closeForm()

        goButton.onClicked: {
            tempGeocodeModel.reset()
            fromAddress.country =  fromCountry.text
            fromAddress.street = fromStreet.text
            fromAddress.city =  fromCity.text
            toAddress.country = toCountry.text
            toAddress.street = toStreet.text
            toAddress.city = toCity.text
            tempGeocodeModel.startCoordinate = QtPositioning.coordinate()
            tempGeocodeModel.endCoordinate = QtPositioning.coordinate()
            tempGeocodeModel.query = fromAddress
            tempGeocodeModel.update();
            goButton.enabled = false;
        }

        clearButton.onClicked: {
            fromStreet.text = ""
            fromCity.text = ""
            fromCountry.text = ""
            toStreet.text = ""
            toCity.text = ""
            toCountry.text = ""
        }

        cancelButton.onClicked: {
            closeForm()
        }

        Component.onCompleted: {
            fromStreet.text  = fromAddress.street
            fromCity.text =  fromAddress.city
            fromCountry.text = fromAddress.country
            toStreet.text = toAddress.street
            toCity.text = toAddress.city
            toCountry.text = toAddress.country
        }

        GeocodeModel {
            id: tempGeocodeModel

            property int success: 0
            property variant startCoordinate
            property variant endCoordinate

            onCountChanged: {
                if (success == 1 && count == 1) {
                    query = toAddress
                    update();
                }
            }

            onStatusChanged: {
                if ((status == GeocodeModel.Ready) && (count == 1)) {
                    success++
                    if (success == 1) {
                        startCoordinate.latitude = get(0).coordinate.latitude
                        startCoordinate.longitude = get(0).coordinate.longitude
                    }
                    if (success == 2) {
                        endCoordinate.latitude = get(0).coordinate.latitude
                        endCoordinate.longitude = get(0).coordinate.longitude
                        success = 0
                        if (startCoordinate.isValid && endCoordinate.isValid)
                            showRoute(startCoordinate,endCoordinate)
                        else
                            goButton.enabled = true
                    }
                } else if ((status == GeocodeModel.Ready) || (status == GeocodeModel.Error)) {
                    var st = (success == 0 ) ? "start" : "end"
                    success = 0
                    if ((status == GeocodeModel.Ready) && (count == 0 )) {
                        showMessage(qsTr("Geocode Error"),qsTr("Unsuccessful geocode"));
                        goButton.enabled = true;
                    }
                    else if (status == GeocodeModel.Error) {
                        showMessage(qsTr("Geocode Error"),
                                    qsTr("Unable to find location for the") + " " +
                                    st + " " +qsTr("point"))
                        goButton.enabled = true;
                    }
                    else if ((status == GeocodeModel.Ready) && (count > 1 )) {
                        showMessage(qsTr("Ambiguous geocode"),
                                    count + " " + qsTr("results found for the") +
                                    " " + st + " " +qsTr("point, please specify location"))
                        goButton.enabled = true;
                    }
                }
            }
        }
    }