DelegatePage.qml Example File | Qt Quick Controls 5.12.12

- Qt 5.12
- Qt Quick Controls
- Qt Quick Controls - Gallery
- DelegatePage.qml Example File
- Qt 5.12.12 Reference Documentation

# 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 2.12
     import QtQuick.Layouts 1.12
     import QtQuick.Controls 2.12

     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

                 Component {
                     id: removeComponent

                     Rectangle {
                         color: SwipeDelegate.pressed ? "#333" : "#444"
                         width: parent.width
                         height: parent.height
                         clip: true

                         SwipeDelegate.onClicked: view.model.remove(ourIndex)

                         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
                         }
                     }
                 }
             }
         }
     }