dashboard.qml Example File

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 import QtQuick 2.2
 import QtQuick.Window 2.1
 import QtQuick.Controls 1.4
 import QtQuick.Controls.Styles 1.4
 import QtQuick.Extras 1.4

 Window {
     id: root
     visible: true
     width: 1024
     height: 600

     color: "#161616"
     title: "Qt Quick Extras Demo"

     ValueSource {
         id: valueSource
     }

     // Dashboards are typically in a landscape orientation, so we need to ensure
     // our height is never greater than our width.
     Item {
         id: container
         width: root.width
         height: Math.min(root.width, root.height)
         anchors.centerIn: parent

         Row {
             id: gaugeRow
             spacing: container.width * 0.02
             anchors.centerIn: parent

             TurnIndicator {
                 id: leftIndicator
                 anchors.verticalCenter: parent.verticalCenter
                 width: height
                 height: container.height * 0.1 - gaugeRow.spacing

                 direction: Qt.LeftArrow
                 on: valueSource.turnSignal == Qt.LeftArrow
             }

             Item {
                 width: height
                 height: container.height * 0.25 - gaugeRow.spacing
                 anchors.verticalCenter: parent.verticalCenter

                 CircularGauge {
                     id: fuelGauge
                     value: valueSource.fuel
                     maximumValue: 1
                     y: parent.height / 2 - height / 2 - container.height * 0.01
                     width: parent.width
                     height: parent.height * 0.7

                     style: IconGaugeStyle {
                         id: fuelGaugeStyle

                         icon: "qrc:/images/fuel-icon.png"
                         minWarningColor: Qt.rgba(0.5, 0, 0, 1)

                         tickmarkLabel: Text {
                             color: "white"
                             visible: styleData.value === 0 || styleData.value === 1
                             font.pixelSize: fuelGaugeStyle.toPixels(0.225)
                             text: styleData.value === 0 ? "E" : (styleData.value === 1 ? "F" : "")
                         }
                     }
                 }

                 CircularGauge {
                     value: valueSource.temperature
                     maximumValue: 1
                     width: parent.width
                     height: parent.height * 0.7
                     y: parent.height / 2 + container.height * 0.01

                     style: IconGaugeStyle {
                         id: tempGaugeStyle

                         icon: "qrc:/images/temperature-icon.png"
                         maxWarningColor: Qt.rgba(0.5, 0, 0, 1)

                         tickmarkLabel: Text {
                             color: "white"
                             visible: styleData.value === 0 || styleData.value === 1
                             font.pixelSize: tempGaugeStyle.toPixels(0.225)
                             text: styleData.value === 0 ? "C" : (styleData.value === 1 ? "H" : "")
                         }
                     }
                 }
             }

             CircularGauge {
                 id: speedometer
                 value: valueSource.kph
                 anchors.verticalCenter: parent.verticalCenter
                 maximumValue: 280
                 // We set the width to the height, because the height will always be
                 // the more limited factor. Also, all circular controls letterbox
                 // their contents to ensure that they remain circular. However, we
                 // don't want to extra space on the left and right of our gauges,
                 // because they're laid out horizontally, and that would create
                 // large horizontal gaps between gauges on wide screens.
                 width: height
                 height: container.height * 0.5

                 style: DashboardGaugeStyle {}
             }

             CircularGauge {
                 id: tachometer
                 width: height
                 height: container.height * 0.25 - gaugeRow.spacing
                 value: valueSource.rpm
                 maximumValue: 8
                 anchors.verticalCenter: parent.verticalCenter

                 style: TachometerStyle {}
             }

             TurnIndicator {
                 id: rightIndicator
                 anchors.verticalCenter: parent.verticalCenter
                 width: height
                 height: container.height * 0.1 - gaugeRow.spacing

                 direction: Qt.RightArrow
                 on: valueSource.turnSignal == Qt.RightArrow
             }

         }
     }
 }