MapComponent.qml Example File

mapviewer/map/MapComponent.qml
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import QtQuick 2.5 import QtQuick.Controls 1.4 import QtLocation 5.9 import QtPositioning 5.5 import "../helper.js" as Helper Map { id: map property variant markers property variant mapItems property int markerCounter: 0 // counter for total amount of markers. Resets to 0 when number of markers = 0 property int currentMarker property int lastX : -1 property int lastY : -1 property int pressX : -1 property int pressY : -1 property int jitterThreshold : 30 property bool followme: false property variant scaleLengths: [5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000, 10000, 20000, 50000, 100000, 200000, 500000, 1000000, 2000000] property alias routeQuery: routeQuery property alias routeModel: routeModel property alias geocodeModel: geocodeModel property alias slidersExpanded: sliders.expanded signal showGeocodeInfo() signal geocodeFinished() signal routeError() signal coordinatesCaptured(double latitude, double longitude) signal showMainMenu(variant coordinate) signal showMarkerMenu(variant coordinate) signal showRouteMenu(variant coordinate) signal showPointMenu(variant coordinate) signal showRouteList() function geocodeMessage() { var street, district, city, county, state, countryCode, country, postalCode, latitude, longitude, text latitude = Math.round(geocodeModel.get(0).coordinate.latitude * 10000) / 10000 longitude =Math.round(geocodeModel.get(0).coordinate.longitude * 10000) / 10000 street = geocodeModel.get(0).address.street district = geocodeModel.get(0).address.district city = geocodeModel.get(0).address.city county = geocodeModel.get(0).address.county state = geocodeModel.get(0).address.state countryCode = geocodeModel.get(0).address.countryCode country = geocodeModel.get(0).address.country postalCode = geocodeModel.get(0).address.postalCode text = "<b>Latitude:</b> " + latitude + "<br/>" text +="<b>Longitude:</b> " + longitude + "<br/>" + "<br/>" if (street) text +="<b>Street: </b>"+ street + " <br/>" if (district) text +="<b>District: </b>"+ district +" <br/>" if (city) text +="<b>City: </b>"+ city + " <br/>" if (county) text +="<b>County: </b>"+ county + " <br/>" if (state) text +="<b>State: </b>"+ state + " <br/>" if (countryCode) text +="<b>Country code: </b>"+ countryCode + " <br/>" if (country) text +="<b>Country: </b>"+ country + " <br/>" if (postalCode) text +="<b>PostalCode: </b>"+ postalCode + " <br/>" return text } function calculateScale() { var coord1, coord2, dist, text, f f = 0 coord1 = map.toCoordinate(Qt.point(0,scale.y)) coord2 = map.toCoordinate(Qt.point(0+scaleImage.sourceSize.width,scale.y)) dist = Math.round(coord1.distanceTo(coord2)) if (dist === 0) { // not visible } else { for (var i = 0; i < scaleLengths.length-1; i++) { if (dist < (scaleLengths[i] + scaleLengths[i+1]) / 2 ) { f = scaleLengths[i] / dist dist = scaleLengths[i] break; } } if (f === 0) { f = dist / scaleLengths[i] dist = scaleLengths[i] } } text = Helper.formatDistance(dist) scaleImage.width = (scaleImage.sourceSize.width * f) - 2 * scaleImageLeft.sourceSize.width scaleText.text = text } function deleteMarkers() { var count = map.markers.length for (var i = 0; i<count; i++){ map.removeMapItem(map.markers[i]) map.markers[i].destroy() } map.markers = [] markerCounter = 0 } function deleteMapItems() { var count = map.mapItems.length for (var i = 0; i<count; i++){ map.removeMapItem(map.mapItems[i]) map.mapItems[i].destroy() } map.mapItems = [] } function addMarker() { var count = map.markers.length markerCounter++ var marker = Qt.createQmlObject ('Marker {}', map) map.addMapItem(marker) marker.z = map.z+1 marker.coordinate = mouseArea.lastCoordinate //update list of markers var myArray = new Array() for (var i = 0; i<count; i++){ myArray.push(markers[i]) } myArray.push(marker) markers = myArray } function addGeoItem(item) { var count = map.mapItems.length var co = Qt.createComponent(item+'.qml') if (co.status == Component.Ready) { var o = co.createObject(map) o.setGeometry(map.markers, currentMarker) map.addMapItem(o) //update list of items var myArray = new Array() for (var i = 0; i<count; i++){ myArray.push(mapItems[i]) } myArray.push(o) mapItems = myArray } else { console.log(item + " is not supported right now, please call us later.") } } function deleteMarker(index) { //update list of markers var myArray = new Array() var count = map.markers.length for (var i = 0; i<count; i++){ if (index != i) myArray.push(map.markers[i]) } map.removeMapItem(map.markers[index]) map.markers[index].destroy() map.markers = myArray if (markers.length == 0) markerCounter = 0 } function calculateMarkerRoute() { routeQuery.clearWaypoints(); for (var i = currentMarker; i< map.markers.length; i++){ routeQuery.addWaypoint(markers[i].coordinate) } routeQuery.travelModes = RouteQuery.CarTravel routeQuery.routeOptimizations = RouteQuery.ShortestRoute routeQuery.setFeatureWeight(0, 0) routeModel.update(); } function calculateCoordinateRoute(startCoordinate, endCoordinate) { // clear away any old data in the query routeQuery.clearWaypoints(); // add the start and end coords as waypoints on the route routeQuery.addWaypoint(startCoordinate) routeQuery.addWaypoint(endCoordinate) routeQuery.travelModes = RouteQuery.CarTravel routeQuery.routeOptimizations = RouteQuery.FastestRoute for (var i=0; i<9; i++) { routeQuery.setFeatureWeight(i, 0) } //for (var i=0; i<routeDialog.features.length; i++) { // map.routeQuery.setFeatureWeight(routeDialog.features[i], RouteQuery.AvoidFeatureWeight) //} routeModel.update(); // center the map on the start coord map.center = startCoordinate; } function geocode(fromAddress) { // send the geocode request geocodeModel.query = fromAddress geocodeModel.update() } zoomLevel: (maximumZoomLevel - minimumZoomLevel)/2 center { // The Qt Company in Oslo latitude: 59.9485 longitude: 10.7686 } // Enable pan, flick, and pinch gestures to zoom in and out gesture.acceptedGestures: MapGestureArea.PanGesture | MapGestureArea.FlickGesture | MapGestureArea.PinchGesture | MapGestureArea.RotationGesture | MapGestureArea.TiltGesture gesture.flickDeceleration: 3000 gesture.enabled: true focus: true onCopyrightLinkActivated: Qt.openUrlExternally(link) onCenterChanged:{ scaleTimer.restart() if (map.followme) if (map.center != positionSource.position.coordinate) map.followme = false } onZoomLevelChanged:{ scaleTimer.restart() if (map.followme) map.center = positionSource.position.coordinate } onWidthChanged:{ scaleTimer.restart() } onHeightChanged:{ scaleTimer.restart() } Component.onCompleted: { markers = new Array(); mapItems = new Array(); } Keys.onPressed: { if (event.key === Qt.Key_Plus) { map.zoomLevel++; } else if (event.key === Qt.Key_Minus) { map.zoomLevel--; } else if (event.key === Qt.Key_Left || event.key === Qt.Key_Right || event.key === Qt.Key_Up || event.key === Qt.Key_Down) { var dx = 0; var dy = 0; switch (event.key) { case Qt.Key_Left: dx = map.width / 4; break; case Qt.Key_Right: dx = -map.width / 4; break; case Qt.Key_Up: dy = map.height / 4; break; case Qt.Key_Down: dy = -map.height / 4; break; } var mapCenterPoint = Qt.point(map.width / 2.0 - dx, map.height / 2.0 - dy); map.center = map.toCoordinate(mapCenterPoint); } } /* @todo Binding { target: map property: 'center' value: positionSource.position.coordinate when: followme }*/ PositionSource{ id: positionSource active: followme onPositionChanged: { map.center = positionSource.position.coordinate } } MapQuickItem { id: poiTheQtComapny sourceItem: Rectangle { width: 14; height: 14; color: "#e41e25"; border.width: 2; border.color: "white"; smooth: true; radius: 7 } coordinate { latitude: 59.9485 longitude: 10.7686 } opacity: 1.0 anchorPoint: Qt.point(sourceItem.width/2, sourceItem.height/2) } MapQuickItem { sourceItem: Text{ text: "The Qt Company" color:"#242424" font.bold: true styleColor: "#ECECEC" style: Text.Outline } coordinate: poiTheQtComapny.coordinate anchorPoint: Qt.point(-poiTheQtComapny.sourceItem.width * 0.5,poiTheQtComapny.sourceItem.height * 1.5) } MapSliders { id: sliders z: map.z + 3 mapSource: map edge: Qt.LeftEdge } Item { id: scale z: map.z + 3 visible: scaleText.text != "0 m" anchors.bottom: parent.bottom; anchors.right: parent.right anchors.margins: 20 height: scaleText.height * 2 width: scaleImage.width Image { id: scaleImageLeft source: "../resources/scale_end.png" anchors.bottom: parent.bottom anchors.right: scaleImage.left } Image { id: scaleImage source: "../resources/scale.png" anchors.bottom: parent.bottom anchors.right: scaleImageRight.left } Image { id: scaleImageRight source: "../resources/scale_end.png" anchors.bottom: parent.bottom anchors.right: parent.right } Label { id: scaleText color: "#004EAE" anchors.centerIn: parent text: "0 m" } Component.onCompleted: { map.calculateScale(); } } RouteModel { id: routeModel plugin : map.plugin query: RouteQuery { id: routeQuery } onStatusChanged: { if (status == RouteModel.Ready) { switch (count) { case 0: // technically not an error map.routeError() break case 1: map.showRouteList() break } } else if (status == RouteModel.Error) { map.routeError() } } } Component { id: routeDelegate MapRoute { id: route route: routeData line.color: "#46a2da" line.width: 5 smooth: true opacity: 0.8 MouseArea { id: routeMouseArea anchors.fill: parent hoverEnabled: false property variant lastCoordinate onPressed : { map.lastX = mouse.x + parent.x map.lastY = mouse.y + parent.y map.pressX = mouse.x + parent.x map.pressY = mouse.y + parent.y lastCoordinate = map.toCoordinate(Qt.point(mouse.x, mouse.y)) } onPositionChanged: { if (mouse.button == Qt.LeftButton) { map.lastX = mouse.x + parent.x map.lastY = mouse.y + parent.y } } onPressAndHold:{ if (Math.abs(map.pressX - parent.x- mouse.x ) < map.jitterThreshold && Math.abs(map.pressY - parent.y - mouse.y ) < map.jitterThreshold) { showRouteMenu(lastCoordinate); } } } } } GeocodeModel { id: geocodeModel plugin: map.plugin onStatusChanged: { if ((status == GeocodeModel.Ready) || (status == GeocodeModel.Error)) map.geocodeFinished() } onLocationsChanged: { if (count == 1) { map.center.latitude = get(0).coordinate.latitude map.center.longitude = get(0).coordinate.longitude } } } Component { id: pointDelegate MapCircle { id: point radius: 1000 color: "#46a2da" border.color: "#190a33" border.width: 2 smooth: true opacity: 0.25 center: locationData.coordinate MouseArea { anchors.fill:parent id: circleMouseArea hoverEnabled: false property variant lastCoordinate onPressed : { map.lastX = mouse.x + parent.x map.lastY = mouse.y + parent.y map.pressX = mouse.x + parent.x map.pressY = mouse.y + parent.y lastCoordinate = map.toCoordinate(Qt.point(mouse.x, mouse.y)) } onPositionChanged: { if (Math.abs(map.pressX - parent.x- mouse.x ) > map.jitterThreshold || Math.abs(map.pressY - parent.y -mouse.y ) > map.jitterThreshold) { if (pressed) parent.radius = parent.center.distanceTo( map.toCoordinate(Qt.point(mouse.x, mouse.y))) } if (mouse.button == Qt.LeftButton) { map.lastX = mouse.x + parent.x map.lastY = mouse.y + parent.y } } onPressAndHold:{ if (Math.abs(map.pressX - parent.x- mouse.x ) < map.jitterThreshold && Math.abs(map.pressY - parent.y - mouse.y ) < map.jitterThreshold) { showPointMenu(lastCoordinate); } } } } } MapItemView { model: routeModel delegate: routeDelegate autoFitViewport: true } MapItemView { model: geocodeModel delegate: pointDelegate } Timer { id: scaleTimer interval: 100 running: false repeat: false onTriggered: { map.calculateScale() } } MouseArea { id: mouseArea property variant lastCoordinate anchors.fill: parent acceptedButtons: Qt.LeftButton | Qt.RightButton onPressed : { map.lastX = mouse.x map.lastY = mouse.y map.pressX = mouse.x map.pressY = mouse.y lastCoordinate = map.toCoordinate(Qt.point(mouse.x, mouse.y)) } onPositionChanged: { if (mouse.button == Qt.LeftButton) { map.lastX = mouse.x map.lastY = mouse.y } } onDoubleClicked: { var mouseGeoPos = map.toCoordinate(Qt.point(mouse.x, mouse.y)); var preZoomPoint = map.fromCoordinate(mouseGeoPos, false); if (mouse.button === Qt.LeftButton) { map.zoomLevel = Math.floor(map.zoomLevel + 1) } else if (mouse.button === Qt.RightButton) { map.zoomLevel = Math.floor(map.zoomLevel - 1) } var postZoomPoint = map.fromCoordinate(mouseGeoPos, false); var dx = postZoomPoint.x - preZoomPoint.x; var dy = postZoomPoint.y - preZoomPoint.y; var mapCenterPoint = Qt.point(map.width / 2.0 + dx, map.height / 2.0 + dy); map.center = map.toCoordinate(mapCenterPoint); lastX = -1; lastY = -1; } onPressAndHold:{ if (Math.abs(map.pressX - mouse.x ) < map.jitterThreshold && Math.abs(map.pressY - mouse.y ) < map.jitterThreshold) { showMainMenu(lastCoordinate); } } } }

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