DelegatePage.qml Example File

gallery/pages/DelegatePage.qml

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  ** This file is part of the examples of the Qt Toolkit.
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  import QtQuick 2.6
  import QtQuick.Layouts 1.1
  import QtQuick.Controls 2.0

  Pane {
      padding: 0

      property var delegateComponentMap: {
          "ItemDelegate": itemDelegateComponent,
          "SwipeDelegate": swipeDelegateComponent,
          "CheckDelegate": checkDelegateComponent,
          "RadioDelegate": radioDelegateComponent,
          "SwitchDelegate": switchDelegateComponent
      }

      Component {
          id: itemDelegateComponent

          ItemDelegate {
              text: labelText
              width: parent.width
          }
      }

      Component {
          id: swipeDelegateComponent

          SwipeDelegate {
              id: swipeDelegate
              text: labelText
              width: parent.width

              onClicked: if (swipe.complete) view.model.remove(ourIndex)

              Component {
                  id: removeComponent

                  Rectangle {
                      color: swipeDelegate.swipe.complete && swipeDelegate.pressed ? "#333" : "#444"
                      width: parent.width
                      height: parent.height
                      clip: true

                      Label {
                          font.pixelSize: swipeDelegate.font.pixelSize
                          text: "Remove"
                          color: "white"
                          anchors.centerIn: parent
                      }
                  }
              }

              swipe.left: removeComponent
              swipe.right: removeComponent
          }
      }

      Component {
          id: checkDelegateComponent

          CheckDelegate {
              text: labelText
              width: parent.width
          }
      }

      ButtonGroup {
          id: radioButtonGroup
      }

      Component {
          id: radioDelegateComponent

          RadioDelegate {
              text: labelText
              ButtonGroup.group: radioButtonGroup
          }
      }

      Component {
          id: switchDelegateComponent

          SwitchDelegate {
              text: labelText
          }
      }

      ColumnLayout {
          id: column
          spacing: 40
          anchors.fill: parent
          anchors.topMargin: 20

          Label {
              Layout.fillWidth: true
              wrapMode: Label.Wrap
              horizontalAlignment: Qt.AlignHCenter
              text: "Delegate controls are used as delegates in views such as ListView."
          }

          ListView {
              id: listView
              Layout.fillWidth: true
              Layout.fillHeight: true
              clip: true
              model: ListModel {
                  ListElement { type: "ItemDelegate"; text: "ItemDelegate" }
                  ListElement { type: "ItemDelegate"; text: "ItemDelegate" }
                  ListElement { type: "ItemDelegate"; text: "ItemDelegate" }
                  ListElement { type: "SwipeDelegate"; text: "SwipeDelegate" }
                  ListElement { type: "SwipeDelegate"; text: "SwipeDelegate" }
                  ListElement { type: "SwipeDelegate"; text: "SwipeDelegate" }
                  ListElement { type: "CheckDelegate"; text: "CheckDelegate" }
                  ListElement { type: "CheckDelegate"; text: "CheckDelegate" }
                  ListElement { type: "CheckDelegate"; text: "CheckDelegate" }
                  ListElement { type: "RadioDelegate"; text: "RadioDelegate" }
                  ListElement { type: "RadioDelegate"; text: "RadioDelegate" }
                  ListElement { type: "RadioDelegate"; text: "RadioDelegate" }
                  ListElement { type: "SwitchDelegate"; text: "SwitchDelegate" }
                  ListElement { type: "SwitchDelegate"; text: "SwitchDelegate" }
                  ListElement { type: "SwitchDelegate"; text: "SwitchDelegate" }
              }

              section.property: "type"
              section.delegate: Pane {
                  width: listView.width
                  height: sectionLabel.implicitHeight + 20

                  Label {
                      id: sectionLabel
                      text: section
                      anchors.centerIn: parent
                  }
              }

              delegate: Loader {
                  id: delegateLoader
                  width: listView.width
                  sourceComponent: delegateComponentMap[text]

                  property string labelText: text
                  property ListView view: listView
                  property int ourIndex: index

                  // Can't find a way to do this in the SwipeDelegate component itself,
                  // so do it here instead.
                  ListView.onRemove: SequentialAnimation {
                      PropertyAction {
                          target: delegateLoader
                          property: "ListView.delayRemove"
                          value: true
                      }
                      NumberAnimation {
                          target: item
                          property: "height"
                          to: 0
                          easing.type: Easing.InOutQuad
                      }
                      PropertyAction {
                          target: delegateLoader
                          property: "ListView.delayRemove"
                          value: false
                      }
                  }
              }
          }
      }
  }