places.qml Example File

places/places.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
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of The Qt Company Ltd nor the names of its
**     contributors may be used to endorse or promote products derived
**     from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/

import QtQuick 2.5
import QtQuick.Controls 1.4
import QtQuick.Layouts 1.2
import QtPositioning 5.5
import QtLocation 5.6
import "items"

ApplicationWindow {
    id: appWindow
    property Map map
    property variant parameters
    property variant searchLocation: map ? map.center : QtPositioning.coordinate()
    property variant searchRegion: QtPositioning.circle(searchLocation)
    property variant searchRegionItem

    property Plugin favoritesPlugin

    function getPlugins() {
        var plugin = Qt.createQmlObject('import QtLocation 5.3; Plugin {}', appWindow);
        var myArray = new Array;
        for (var i = 0; i < plugin.availableServiceProviders.length; i++) {
            var tempPlugin = Qt.createQmlObject ('import QtLocation 5.3; Plugin {name: "' + plugin.availableServiceProviders[i]+ '"}', appWindow)

            if (tempPlugin.supportsPlaces() && tempPlugin.supportsMapping() )
                myArray.push(tempPlugin.name)
        }
        myArray.sort()
        return myArray;
    }

    function initializeProviders(pluginParameters)
    {
        var parameters = new Array()
        for (var prop in pluginParameters) {
            var parameter = Qt.createQmlObject('import QtLocation 5.3; PluginParameter{ name: "'+ prop + '"; value: "' + pluginParameters[prop]+'"}',appWindow)
            parameters.push(parameter)
        }
        appWindow.parameters = parameters
        var plugins = getPlugins()
        mainMenu.providerMenu.createMenu(plugins)
        for (var i = 0; i<plugins.length; i++) {
            if (plugins[i] === "osm")
                mainMenu.selectProvider(plugins[i])
        }
    }

    function createMap(provider) {
        var plugin;
        if (parameters && parameters.length>0)
            plugin = Qt.createQmlObject ('import QtLocation 5.3; Plugin{ name:"' + provider + '"; parameters: appWindow.parameters}', appWindow)
        else
            plugin = Qt.createQmlObject ('import QtLocation 5.3; Plugin{ name:"' + provider + '"}', appWindow)

        if (map)
            map.destroy();
        map = mapComponent.createObject(page);
        map.plugin = plugin;
        map.zoomLevel = (map.maximumZoomLevel - map.minimumZoomLevel)/2
        categoryModel.plugin = plugin;
        categoryModel.update();
        placeSearchModel.plugin = plugin;
        suggestionModel.plugin = plugin;
    }

    title: qsTr("Places")
    width: 360
    height: 640
    visible: true
    menuBar: mainMenu
    toolBar: searchBar

    MainMenu {
        id: mainMenu
        onSelectProvider: {
            stackView.pop(page)
            for (var i = 0; i < providerMenu.items.length; i++) {
                providerMenu.items[i].checked = providerMenu.items[i].text === providerName
            }

            createMap(providerName)
            if (map.error === Map.NoError) {
                settingsMenu.createMenu(map);
            } else {
                settingsMenu.clear();
            }
        }
        onSelectSetting: {
            stackView.pop({tem:page,immediate: true})
            switch (setting) {
            case "searchCenter":
                stackView.push({ item: Qt.resolvedUrl("forms/SearchCenter.qml") ,
                                   properties: { "coordinate": map.center}})
                stackView.currentItem.changeSearchCenter.connect(stackView.changeSearchCenter)
                stackView.currentItem.closeForm.connect(stackView.closeForm)
                break
            case "searchBoundingBox":
                stackView.push({ item: Qt.resolvedUrl("forms/SearchBoundingBox.qml") ,
                                   properties: { "searchRegion": searchRegion}})
                stackView.currentItem.changeSearchBoundingBox.connect(stackView.changeSearchBoundingBox)
                stackView.currentItem.closeForm.connect(stackView.closeForm)
                break
            case "searchBoundingCircle":
                stackView.push({ item: Qt.resolvedUrl("forms/SearchBoundingCircle.qml") ,
                                   properties: { "searchRegion": searchRegion}})
                stackView.currentItem.changeSearchBoundingCircle.connect(stackView.changeSearchBoundingCircle)
                stackView.currentItem.closeForm.connect(stackView.closeForm)
                break
            case "SearchOptions":
                stackView.push({ item: Qt.resolvedUrl("forms/SearchOptions.qml") ,
                                   properties: { "plugin": map.plugin,
                                       "model": placeSearchModel}})
                stackView.currentItem.changeSearchSettings.connect(stackView.changeSearchSettings)
                stackView.currentItem.closeForm.connect(stackView.closeForm)
                break
            default:
                console.log("Unsupported setting !")
            }
        }
    }

    SearchBar {
        id: searchBar
        width: appWindow.width
        searchBarVisbile: stackView.depth > 1 &&
                          stackView.currentItem &&
                          stackView.currentItem.objectName != "suggestionView" ? false : true
        onShowCategories: {
            if (map && map.plugin) {
                stackView.pop({tem:page,immediate: true})
                stackView.enterCategory()
            }
        }
        onGoBack: stackView.pop()
        onSearchTextChanged: {
            if (searchText.length >= 3 && suggestionModel != null) {
                suggestionModel.searchTerm = searchText;
                suggestionModel.update();
            }
        }
        onDoSearch: {
            if (searchText.length > 0)
                placeSearchModel.searchForText(searchText);
        }
        onShowMap: stackView.pop(page)
    }

    StackView {
        id: stackView

        function showMessage(title,message,backPage)
        {
            push({ item: Qt.resolvedUrl("forms/Message.qml") ,
                     properties: {
                         "title" : title,
                         "message" : message,
                         "backPage" : backPage
                     }})
            currentItem.closeForm.connect(closeMessage)
        }

        function closeMessage(backPage)
        {
            pop(backPage)
        }

        function closeForm()
        {
            pop(page)
        }

        function enterCategory(index)
        {
            push({ item: Qt.resolvedUrl("views/CategoryView.qml") ,
                     properties: { "categoryModel": categoryModel,
                         "rootIndex" : index
                     }})
            currentItem.showSubcategories.connect(stackView.enterCategory)
            currentItem.searchCategory.connect(placeSearchModel.searchForCategory)
        }

        function showSuggestions()
        {
            if (currentItem.objectName != "suggestionView") {
                stackView.pop(page)
                push({ item: Qt.resolvedUrl("views/SuggestionView.qml") ,
                         properties: { "suggestionModel": suggestionModel }
                     })
                currentItem.objectName = "suggestionView"
                currentItem.suggestionSelected.connect(searchBar.showSearch)
                currentItem.suggestionSelected.connect(placeSearchModel.searchForText)
            }
        }

        function showPlaces()
        {
            if (currentItem.objectName != "searchResultView") {
                stackView.pop({tem:page,immediate: true})
                push({ item: Qt.resolvedUrl("views/SearchResultView.qml") ,
                         properties: { "placeSearchModel": placeSearchModel }
                     })
                currentItem.showPlaceDetails.connect(showPlaceDatails)
                currentItem.showMap.connect(searchBar.showMap)
                currentItem.objectName = "searchResultView"
            }
        }

        function showPlaceDatails(place, distance)
        {
            push({ item: Qt.resolvedUrl("forms/PlaceDetails.qml") ,
                     properties: { "place": place,
                         "distanceToPlace": distance }
                 })
            currentItem.searchForSimilar.connect(searchForSimilar)
            currentItem.showReviews.connect(showReviews)
            currentItem.showEditorials.connect(showEditorials)
            currentItem.showImages.connect(showImages)
        }

        function showEditorials(place)
        {
            push({ item: Qt.resolvedUrl("views/EditorialView.qml") ,
                     properties: { "place": place }
                 })
            currentItem.showEditorial.connect(showEditorial)
        }

        function showReviews(place)
        {
            push({ item: Qt.resolvedUrl("views/ReviewView.qml") ,
                     properties: { "place": place }
                 })
            currentItem.showReview.connect(showReview)
        }

        function showImages(place)
        {
            push({ item: Qt.resolvedUrl("views/ImageView.qml") ,
                     properties: { "place": place }
                 })
        }

        function showEditorial(editorial)
        {
            push({ item: Qt.resolvedUrl("views/EditorialPage.qml") ,
                     properties: { "editorial": editorial }
                 })
        }

        function showReview(review)
        {
            push({ item: Qt.resolvedUrl("views/ReviewPage.qml") ,
                     properties: { "review": review }
                 })
        }

        function changeSearchCenter(coordinate)
        {
            stackView.pop(page)
            map.center = coordinate;
            if (searchRegionItem) {
                map.removeMapItem(searchRegionItem);
                searchRegionItem.destroy();
            }
        }

        function changeSearchBoundingBox(coordinate,widthDeg,heightDeg)
        {
            stackView.pop(page)
            map.center = coordinate
            searchRegion = QtPositioning.rectangle(map.center, widthDeg, heightDeg)
            if (searchRegionItem) {
                map.removeMapItem(searchRegionItem);
                searchRegionItem.destroy();
            }
            searchRegionItem = Qt.createQmlObject('import QtLocation 5.3; MapRectangle { color: "#46a2da"; border.color: "#190a33"; border.width: 2; opacity: 0.25 }', page, "MapRectangle");
            searchRegionItem.topLeft = searchRegion.topLeft;
            searchRegionItem.bottomRight = searchRegion.bottomRight;
            map.addMapItem(searchRegionItem);
        }

        function changeSearchBoundingCircle(coordinate,radius)
        {
            stackView.pop(page)
            map.center = coordinate;
            searchRegion = QtPositioning.circle(coordinate, radius)

            if (searchRegionItem) {
                map.removeMapItem(searchRegionItem);
                searchRegionItem.destroy();
            }
            searchRegionItem = Qt.createQmlObject('import QtLocation 5.3; MapCircle { color: "#46a2da"; border.color: "#190a33"; border.width: 2; opacity: 0.25 }', page, "MapRectangle");
            searchRegionItem.center = searchRegion.center;
            searchRegionItem.radius = searchRegion.radius;
            map.addMapItem(searchRegionItem);
        }

        function changeSearchSettings(orderByDistance, orderByName, locales)
        {
            stackView.pop(page)
            /*if (isFavoritesEnabled) {
                if (favoritesPlugin == null)
                    favoritesPlugin = Qt.createQmlObject('import QtLocation 5.3; Plugin { name: "places_jsondb" }', page);
                favoritesPlugin.parameters = pluginParametersFromMap(pluginParameters);
                placeSearchModel.favoritesPlugin = favoritesPlugin;
            } else {
                placeSearchModel.favoritesPlugin = null;
            }*/
            placeSearchModel.favoritesPlugin = null;

            placeSearchModel.relevanceHint = orderByDistance ? PlaceSearchModel.DistanceHint :
                                                               orderByName ? PlaceSearchModel.LexicalPlaceNameHint :
                                                                             PlaceSearchModel.UnspecifiedHint;
            map.plugin.locales = locales.split(Qt.locale().groupSeparator);
        }

        function searchForSimilar(place) {
            stackView.pop(page)
            searchBar.showSearch(place.name)
            placeSearchModel.searchForRecommendations(place.placeId);
        }

        anchors.fill: parent
        focus: true
        initialItem:  Item {
            id: page

            PlaceSearchModel {
                id: placeSearchModel
                searchArea: searchRegion

                function searchForCategory(category) {
                    searchTerm = "";
                    categories = category;
                    recommendationId = "";
                    searchArea = searchRegion
                    limit = -1;
                    update();
                }

                function searchForText(text) {
                    searchTerm = text;
                    categories = null;
                    recommendationId = "";
                    searchArea = searchRegion
                    limit = -1;
                    update();
                }

                function searchForRecommendations(placeId) {
                    searchTerm = "";
                    categories = null;
                    recommendationId = placeId;
                    searchArea = null;
                    limit = -1;
                    update();
                }

                onStatusChanged: {
                    switch (status) {
                    case PlaceSearchModel.Ready:
                        if (count > 0)
                            stackView.showPlaces()
                        else
                            stackView.showMessage(qsTr("Search Place Error"),qsTr("Place not found !"))
                        break;
                    case PlaceSearchModel.Error:
                        stackView.showMessage(qsTr("Search Place Error"),errorString())
                        break;
                    }
                }
            }

            PlaceSearchSuggestionModel {
                id: suggestionModel
                searchArea: searchRegion

                onStatusChanged: {
                    if (status == PlaceSearchSuggestionModel.Ready)
                        stackView.showSuggestions()
                }
            }

            CategoryModel {
                id: categoryModel
                hierarchical: true
            }

            Component {
                id: mapComponent

                MapComponent {
                    width: page.width
                    height: page.height

                    onErrorChanged: {
                        if (map.error != Map.NoError) {
                            var title = qsTr("ProviderError");
                            var message =  map.errorString + "<br/><br/><b>" + qsTr("Try to select other provider") + "</b>";
                            if (map.error == Map.MissingRequiredParameterError)
                                message += "<br/>" + qsTr("or see") + " \'mapviewer --help\' "
                                        + qsTr("how to pass plugin parameters.");
                            stackView.showMessage(title,message);
                        }
                    }

                    MapItemView {
                        model: placeSearchModel
                        delegate: MapQuickItem {
                            coordinate: model.type === PlaceSearchModel.PlaceResult ? place.location.coordinate : QtPositioning.coordinate()

                            visible: model.type === PlaceSearchModel.PlaceResult

                            anchorPoint.x: image.width * 0.28
                            anchorPoint.y: image.height

                            sourceItem: Image {
                                id: image
                                source: "resources/marker.png"
                                MouseArea {
                                    anchors.fill: parent
                                    onClicked: stackView.showPlaceDatails(model.place,model.distance)
                                }
                            }
                        }
                    }
                }
            }
        }
    }

    Rectangle {
        color: "white"
        opacity: busyIndicator.running ? 0.8 : 0
        anchors.fill: parent
        Behavior on opacity { NumberAnimation{} }
    }
    BusyIndicator {
        id: busyIndicator
        anchors.centerIn: parent
        running: placeSearchModel.status == PlaceSearchModel.Loading ||
                 categoryModel.status === CategoryModel.Loading
    }
}

© 2016 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.