GeoTab.qml Example File

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  ** This file is part of the examples of the Qt Toolkit.
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  import QtQuick 2.0
  import QtPositioning 5.2

  Rectangle {
      id: container
      property int maxX: parent.width; property int maxY: parent.height
      property variant coordinate

      Binding {
          target: container
          property: "coordinate"
          value: positionSource.position.coordinate
      }

      width: 300; height: 130
      color: "blue"
      opacity: 0.7
      border.color: "black"
      border.width: 1
      radius: 5
      gradient: Gradient {
          GradientStop {position: 0.0; color: "grey"}
          GradientStop {position: 1.0; color: "black"}
      }
      MouseArea {
          anchors.fill: parent
          drag.target: parent
          drag.axis: Drag.XandYAxis
          drag.minimumX: -(parent.width * (2/3)); drag.maximumX: parent.maxX - (parent.width/3)
          drag.minimumY: -(parent.height/2); drag.maximumY: parent.maxY - (parent.height/2)
      }
      Button {
          id: locateButton
          text: "Locate & update"
          anchors {left: parent.left; leftMargin: 5}
          y: 3; height: 32; width: parent.width - 10
          onClicked: {
              if (positionSource.supportedPositioningMethods ===
                      PositionSource.NoPositioningMethods) {
                  positionSource.nmeaSource = "nmealog.txt";
                  sourceText.text = "(filesource): " + printableMethod(positionSource.supportedPositioningMethods);
              }
              positionSource.update();
          }
      }
      PositionSource {
          id: positionSource
          onPositionChanged: { planet.source = "images/sun.png"; }

          onSourceErrorChanged: {
              if (sourceError == PositionSource.NoError)
                  return

              console.log("Source error: " + sourceError)
              activityText.fadeOut = true
              stop()
          }

          onUpdateTimeout: {
              activityText.fadeOut = true
          }
      }
      function printableMethod(method) {
          if (method === PositionSource.SatellitePositioningMethods)
              return "Satellite";
          else if (method === PositionSource.NoPositioningMethods)
              return "Not available"
          else if (method === PositionSource.NonSatellitePositioningMethods)
              return "Non-satellite"
          else if (method === PositionSource.AllPositioningMethods)
              return "Multiple"
          return "source error";
      }

      Grid {
          id: locationGrid
          columns: 2
          anchors {left: parent.left; leftMargin: 5; top: locateButton.bottom; topMargin: 5}
          spacing: 5
          Text {color: "white"; font.bold: true
              text: "Lat:"; style: Text.Raised; styleColor: "black"
          }
          Text {id: latitudeValue; color: "white"; font.bold: true
              text: positionSource.position.coordinate.latitude; style: Text.Raised; styleColor: "black";
          }
          Text {color: "white"; font.bold: true
              text: "Lon:"; style: Text.Raised; styleColor: "black"
          }
          Text {id: longitudeValue; color: "white"; font.bold: true
              text: positionSource.position.coordinate.longitude; style: Text.Raised; styleColor: "black"
          }
      }
      Image {
          id: planet
          anchors {top: locationGrid.bottom; left: parent.left; leftMargin: locationGrid.anchors.leftMargin}
          source: "images/moon.png"
          width: 30; height: 30
      }
      Text {id: sourceText; color: "white"; font.bold: true;
          anchors {left: planet.right; leftMargin: 5; verticalCenter: planet.verticalCenter}
          text: "Source: " + printableMethod(positionSource.supportedPositioningMethods); style: Text.Raised; styleColor: "black";
      }

      Text {
          id: activityText; color: "white"; font.bold: true;
          anchors { top: planet.bottom; horizontalCenter: parent.horizontalCenter }
          property bool fadeOut: false

          text: {
              if (fadeOut)
                  return qsTr("Timeout occurred!");
              else if (positionSource.active)
                  return qsTr("Retrieving update...")
              else
                  return ""
          }

          Timer {
              id: fadeoutTimer; repeat: false; interval: 3000; running: activityText.fadeOut
              onTriggered: { activityText.fadeOut = false; }
          }
      }
  }