Qt 5.9 | Qt Quick Extras | Qt Quick Extras - Gallery | gallery.qml Example File

Qt 5.9.9 Reference Documentation

# gallery.qml Example File

gallery/qml/gallery.qml

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      import QtQuick 2.2
      import QtGraphicalEffects 1.0
      import QtQuick.Controls 1.4
      import QtQuick.Controls.Styles 1.4
      import QtQuick.Dialogs 1.0
      import QtQuick.Extras 1.4
      import QtQuick.Layouts 1.0
      import QtQuick.Window 2.1

      Window {
          id: root
          objectName: "window"
          visible: true
          width: 480
          height: 800

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

          function toPixels(percentage) {
              return percentage * Math.min(root.width, root.height);
          }

          property bool isScreenPortrait: height > width
          property color lightFontColor: "#222"
          property color darkFontColor: "#e7e7e7"
          readonly property color lightBackgroundColor: "#cccccc"
          readonly property color darkBackgroundColor: "#161616"
          property real customizerPropertySpacing: 10
          property real colorPickerRowSpacing: 8

          Text {
              id: textSingleton
          }

          property Component circularGauge: CircularGaugeView {}

          property Component dial: ControlView {
              darkBackground: false

              control: Column {
                  id: dialColumn
                  width: controlBounds.width
                  height: controlBounds.height - spacing
                  spacing: root.toPixels(0.05)

                  ColumnLayout {
                      id: volumeColumn
                      width: parent.width
                      height: (dialColumn.height - dialColumn.spacing) / 2
                      spacing: height * 0.025

                      Dial {
                          id: volumeDial
                          anchors.horizontalCenter: parent.horizontalCenter
                          Layout.fillWidth: true
                          Layout.fillHeight: true

                          /*!
                              Determines whether the dial animates its rotation to the new value when
                              a single click or touch is received on the dial.
                          */
                          property bool animate: customizerItem.animate

                          Behavior on value {
                              enabled: volumeDial.animate && !volumeDial.pressed
                              NumberAnimation {
                                  duration: 300
                                  easing.type: Easing.OutSine
                              }
                          }
                      }

                      ControlLabel {
                          id: volumeText
                          text: "Volume"
                          anchors.horizontalCenter: parent.horizontalCenter
                      }
                  }

                  ColumnLayout {
                      id: trebleColumn
                      width: parent.width
                      height: (dialColumn.height - dialColumn.spacing) / 2
                      spacing: height * 0.025

                      Dial {
                          id: dial2
                          anchors.horizontalCenter: parent.horizontalCenter
                          Layout.fillWidth: true
                          Layout.fillHeight: true

                          stepSize: 1
                          maximumValue: 10

                          style: DialStyle {
                              labelInset: outerRadius * 0
                          }
                      }

                      ControlLabel {
                          id: trebleText
                          text: "Treble"
                          anchors.horizontalCenter: parent.horizontalCenter
                      }
                  }
              }

              customizer: Column {
                  spacing: customizerPropertySpacing

                  property alias animate: animateCheckBox.checked

                  CustomizerLabel {
                      text: "Animate"
                  }

                  CustomizerSwitch {
                      id: animateCheckBox
                  }
              }
          }

          property Component delayButton: ControlView {
              darkBackground: false

              control: DelayButton {
                  text: "Alarm"
                  anchors.centerIn: parent
              }
          }

          property Component gauge: ControlView {
              id: gaugeView
              control: Gauge {
                  id: gauge
                  width: orientation === Qt.Vertical ? implicitWidth : gaugeView.controlBounds.width
                  height: orientation === Qt.Vertical ? gaugeView.controlBounds.height : implicitHeight
                  anchors.centerIn: parent

                  minimumValue: 0
                  value: customizerItem.value
                  maximumValue: 100
                  orientation: customizerItem.orientationFlag ? Qt.Vertical : Qt.Horizontal
                  tickmarkAlignment: orientation === Qt.Vertical
                      ? (customizerItem.alignFlag ? Qt.AlignLeft : Qt.AlignRight)
                      : (customizerItem.alignFlag ? Qt.AlignTop : Qt.AlignBottom)
              }

              customizer: Column {
                  spacing: customizerPropertySpacing

                  property alias value: valueSlider.value
                  property alias orientationFlag: orientationCheckBox.checked
                  property alias alignFlag: alignCheckBox.checked

                  CustomizerLabel {
                      text: "Value"
                  }

                  CustomizerSlider {
                      id: valueSlider
                      minimumValue: 0
                      value: 50
                      maximumValue: 100
                  }

                  CustomizerLabel {
                      text: "Vertical orientation"
                  }

                  CustomizerSwitch {
                      id: orientationCheckBox
                      checked: true
                  }

                  CustomizerLabel {
                      text: controlItem.orientation === Qt.Vertical ? "Left align" : "Top align"
                  }

                  CustomizerSwitch {
                      id: alignCheckBox
                      checked: true
                  }
              }
          }

          property Component toggleButton: ControlView {
              darkBackground: false

              control: ToggleButton {
                  text: checked ? "On" : "Off"
                  anchors.centerIn: parent
              }
          }

          property Component pieMenu: PieMenuControlView {}

          property Component statusIndicator: ControlView {
              id: statusIndicatorView
              darkBackground: false

              Timer {
                  id: recordingFlashTimer
                  running: true
                  repeat: true
                  interval: 1000
              }

              ColumnLayout {
                  id: indicatorLayout
                  width: statusIndicatorView.controlBounds.width * 0.25
                  height: statusIndicatorView.controlBounds.height * 0.75
                  anchors.centerIn: parent

                  Repeater {
                      model: ListModel {
                          id: indicatorModel
                          ListElement {
                              name: "Power"
                              indicatorColor: "#35e02f"
                          }
                          ListElement {
                              name: "Recording"
                              indicatorColor: "red"
                          }
                      }

                      ColumnLayout {
                          Layout.preferredWidth: indicatorLayout.width
                          spacing: 0

                          StatusIndicator {
                              id: indicator
                              color: indicatorColor
                              Layout.preferredWidth: statusIndicatorView.controlBounds.width * 0.07
                              Layout.preferredHeight: Layout.preferredWidth
                              Layout.alignment: Qt.AlignHCenter
                              on: true

                              Connections {
                                  target: recordingFlashTimer
                                  onTriggered: if (name == "Recording") indicator.active = !indicator.active
                              }
                          }
                          ControlLabel {
                              id: indicatorLabel
                              text: name
                              Layout.alignment: Qt.AlignHCenter
                              Layout.maximumWidth: parent.width
                              horizontalAlignment: Text.AlignHCenter
                          }
                      }
                  }
              }
          }

          property Component tumbler: ControlView {
              id: tumblerView
              darkBackground: false

              Tumbler {
                  id: tumbler
                  anchors.centerIn: parent

                  // TODO: Use FontMetrics with 5.4
                  Label {
                      id: characterMetrics
                      font.bold: true
                      font.pixelSize: textSingleton.font.pixelSize * 1.25
                      font.family: openSans.name
                      visible: false
                      text: "M"
                  }

                  readonly property real delegateTextMargins: characterMetrics.width * 1.5
                  readonly property var days: [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]

                  TumblerColumn {
                      id: tumblerDayColumn

                      function updateModel() {
                          var previousIndex = tumblerDayColumn.currentIndex;
                          var newDays = tumbler.days[monthColumn.currentIndex];

                          if (!model) {
                              var array = [];
                              for (var i = 0; i < newDays; ++i) {
                                  array.push(i + 1);
                              }
                              model = array;
                          } else {
                              // If we've already got days in the model, just add or remove
                              // the minimum amount necessary to make spinning the month column fast.
                              var difference = model.length - newDays;
                              if (model.length > newDays) {
                                  model.splice(model.length - 1, difference);
                              } else {
                                  var lastDay = model[model.length - 1];
                                  for (i = lastDay; i < lastDay + difference; ++i) {
                                      model.push(i + 1);
                                  }
                              }
                          }

                          tumbler.setCurrentIndexAt(0, Math.min(newDays - 1, previousIndex));
                      }
                  }
                  TumblerColumn {
                      id: monthColumn
                      width: characterMetrics.width * 3 + tumbler.delegateTextMargins
                      model: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]
                      onCurrentIndexChanged: tumblerDayColumn.updateModel()
                  }
                  TumblerColumn {
                      width: characterMetrics.width * 4 + tumbler.delegateTextMargins
                      model: ListModel {
                          Component.onCompleted: {
                              for (var i = 2000; i < 2100; ++i) {
                                  append({value: i.toString()});
                              }
                          }
                      }
                  }
              }
          }

          FontLoader {
              id: openSans
              source: "qrc:/fonts/OpenSans-Regular.ttf"
           }

          property var componentMap: {
              "CircularGauge": circularGauge,
              "DelayButton": delayButton,
              "Dial": dial,
              "Gauge": gauge,
              "PieMenu": pieMenu,
              "StatusIndicator": statusIndicator,
              "ToggleButton": toggleButton,
              "Tumbler": tumbler
          }

          StackView {
              id: stackView
              anchors.fill: parent

              initialItem: ListView {
                  model: ListModel {
                      ListElement {
                          title: "CircularGauge"
                      }
                      ListElement {
                          title: "DelayButton"
                      }
                      ListElement {
                          title: "Dial"
                      }
                      ListElement {
                          title: "Gauge"
                      }
                      ListElement {
                          title: "PieMenu"
                      }
                      ListElement {
                          title: "StatusIndicator"
                      }
                      ListElement {
                          title: "ToggleButton"
                      }
                      ListElement {
                          title: "Tumbler"
                      }
                  }

                  delegate: Button {
                      width: stackView.width
                      height: root.height * 0.125
                      text: title

                      style: BlackButtonStyle {
                          fontColor: root.darkFontColor
                          rightAlignedIconSource: "qrc:/images/icon-go.png"
                      }

                      onClicked: {
                          if (stackView.depth == 1) {
                              // Only push the control view if we haven't already pushed it...
                              stackView.push({item: componentMap[title]});
                              stackView.currentItem.forceActiveFocus();
                          }
                      }
                  }
              }
          }
      }