Qt 5.9 | Qt Location | Map Viewer (QML) | Marker.qml Example File

Qt 5.9.4 Reference Documentation

# Marker.qml Example File

mapviewer/map/Marker.qml

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      import QtQuick 2.5;
      import QtLocation 5.6

      MapQuickItem {
          id: marker
          property alias lastMouseX: markerMouseArea.lastX
          property alias lastMouseY: markerMouseArea.lastY

          anchorPoint.x: image.width/4
          anchorPoint.y: image.height

          sourceItem: Image {
              id: image
              source: "../resources/marker.png"
              opacity: markerMouseArea.pressed ? 0.6 : 1.0
              MouseArea  {
                  id: markerMouseArea
                  property int pressX : -1
                  property int pressY : -1
                  property int jitterThreshold : 10
                  property int lastX: -1
                  property int lastY: -1
                  anchors.fill: parent
                  hoverEnabled : false
                  drag.target: marker
                  preventStealing: true

                  onPressed : {
                      map.pressX = mouse.x
                      map.pressY = mouse.y
                      map.currentMarker = -1
                      for (var i = 0; i< map.markers.length; i++){
                          if (marker == map.markers[i]){
                              map.currentMarker = i
                              break
                          }
                      }
                  }

                  onPressAndHold:{
                      if (Math.abs(map.pressX - mouse.x ) < map.jitterThreshold
                              && Math.abs(map.pressY - mouse.y ) < map.jitterThreshold) {
                          var p = map.fromCoordinate(marker.coordinate)
                          lastX = p.x
                          lastY = p.y
                          map.showMarkerMenu(marker.coordinate)
                      }
                  }
              }

              Text{
                  id: number
                  y: image.height/10
                  width: image.width
                  color: "white"
                  font.bold: true
                  font.pixelSize: 14
                  horizontalAlignment: Text.AlignHCenter
                  Component.onCompleted: {
                      text = map.markerCounter
                  }
              }

          }

          Component.onCompleted: coordinate = map.toCoordinate(Qt.point(markerMouseArea.mouseX,
                                                                        markerMouseArea.mouseY));
      }