MapComponent.qml Example File

mapviewer/map/MapComponent.qml

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  import QtQuick 2.5
  import QtQuick.Controls 1.4
  import QtLocation 5.6
  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

      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 = "Latitude: " + latitude + "
" text +="Longitude: " + longitude + "
" + "
" if (street) text +="Street: "+ street + "
" if (district) text +="District: "+ district +"
" if (city) text +="City: "+ city + "
" if (county) text +="County: "+ county + "
" if (state) text +="State: "+ state + "
" if (countryCode) text +="Country code: "+ countryCode + "
" if (country) text +="Country: "+ country + "
" if (postalCode) text +="PostalCode: "+ postalCode + "
" 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 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++; } else if (mouse.button === Qt.RightButton) { map.zoomLevel--; } 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); } } } }