CircularGaugeView.qml Example File

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  import QtQuick 2.2
  import QtQuick.Controls 1.1
  import QtQuick.Extras 1.4

  ControlView {
      id: controlView
      darkBackground: customizerItem.currentStyleDark

      property color fontColor: darkBackground ? "white" : "black"

      property bool accelerating: false

      Keys.onSpacePressed: accelerating = true
      Keys.onReleased: {
          if (event.key === Qt.Key_Space) {
              accelerating = false;
              event.accepted = true;
          }
      }

      Button {
          id: accelerate
          text: "Accelerate"
          anchors.horizontalCenter: parent.horizontalCenter
          anchors.bottom: parent.bottom
          height: root.height * 0.125

          onPressedChanged: accelerating = pressed

          style: BlackButtonStyle {
              background: BlackButtonBackground {
                  pressed: control.pressed
              }
              label: Text {
                  text: control.text
                  color: "white"
                  font.pixelSize: Math.max(textSingleton.font.pixelSize, root.toPixels(0.04))
                  font.family: openSans.name
                  horizontalAlignment: Text.AlignHCenter
                  verticalAlignment: Text.AlignVCenter
              }
          }
      }

      control: CircularGauge {
          id: gauge
          minimumValue: customizerItem.minimumValue
          maximumValue: customizerItem.maximumValue
          width: controlBounds.width
          height: controlBounds.height

          value: accelerating ? maximumValue : 0
          style: styleMap[customizerItem.currentStylePath]

          // This stops the styles being recreated when a new one is chosen.
          property var styleMap: {
              var styles = {};
              for (var i = 0; i < customizerItem.allStylePaths.length; ++i) {
                  var path = customizerItem.allStylePaths[i];
                  styles[path] = Qt.createComponent(path, gauge);
              }
              styles;
          }

          // Called to update the style after the user has edited a property.
          Connections {
              target: customizerItem
              onMinimumValueAngleChanged: __style.minimumValueAngle = customizerItem.minimumValueAngle
              onMaximumValueAngleChanged: __style.maximumValueAngle = customizerItem.maximumValueAngle
              onLabelStepSizeChanged: __style.tickmarkStepSize = __style.labelStepSize = customizerItem.labelStepSize
          }

          Behavior on value {
              NumberAnimation {
                  easing.type: Easing.OutCubic
                  duration: 6000
              }
          }
      }

      customizer: Column {
          readonly property var allStylePaths: {
              var paths = [];
              for (var i = 0; i < stylePicker.model.count; ++i) {
                  paths.push(stylePicker.model.get(i).path);
              }
              paths;
          }
          property alias currentStylePath: stylePicker.currentStylePath
          property alias currentStyleDark: stylePicker.currentStyleDark
          property alias minimumValue: minimumValueSlider.value
          property alias maximumValue: maximumValueSlider.value
          property alias minimumValueAngle: minimumAngleSlider.value
          property alias maximumValueAngle: maximumAngleSlider.value
          property alias labelStepSize: labelStepSizeSlider.value

          id: circularGaugeColumn
          spacing: customizerPropertySpacing

          readonly property bool isDefaultStyle: stylePicker.model.get(stylePicker.currentIndex).name === "Default"

          Item {
              id: stylePickerBottomSpacing
              width: parent.width
              height: stylePicker.height + textSingleton.implicitHeight

              StylePicker {
                  id: stylePicker
                  currentIndex: 1

                  model: ListModel {
                      ListElement {
                          name: "Default"
                          path: "CircularGaugeDefaultStyle.qml"
                          dark: true
                      }
                      ListElement {
                          name: "Dark"
                          path: "CircularGaugeDarkStyle.qml"
                          dark: true
                      }
                      ListElement {
                          name: "Light"
                          path: "CircularGaugeLightStyle.qml"
                          dark: false
                      }
                  }
              }
          }

          CustomizerLabel {
              text: "Minimum angle"
          }

          CustomizerSlider {
              id: minimumAngleSlider
              minimumValue: -180
              value: -145
              maximumValue: 180
              width: parent.width
          }

          CustomizerLabel {
              text: "Maximum angle"
          }

          CustomizerSlider {
              id: maximumAngleSlider
              minimumValue: -180
              value: 145
              maximumValue: 180
          }

          CustomizerLabel {
              text: "Minimum value"
          }

          CustomizerSlider {
              id: minimumValueSlider
              minimumValue: 0
              value: 0
              maximumValue: 360
              stepSize: 1
          }

          CustomizerLabel {
              text: "Maximum value"
          }

          CustomizerSlider {
              id: maximumValueSlider
              minimumValue: 0
              value: 240
              maximumValue: 300
              stepSize: 1
          }

          CustomizerLabel {
              text: "Label step size"
          }

          CustomizerSlider {
              id: labelStepSizeSlider
              minimumValue: 10
              value: 20
              maximumValue: 100
              stepSize: 20
          }
      }
  }