- Qt 6.6
- Qt Quick 3D
- Qt Quick 3D Examples and Tutorials
- Qt Quick 3D - Particles 3D Testbed Example
- Qt Quick 3D | Commercial or GPLv3

# Qt Quick 3D - Particles 3D Testbed Example

     // Copyright (C) 2023 The Qt Company Ltd.
     // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause

     import QtQuick
     import QtQuick.Controls

     Item {
         id: rootItem
         property real showState: AppSettings.showSettingsView ? 1.0 : 0.0

         default property alias content: settingsArea.children

         width: settingsDrawer.width
         height: settingsDrawer.height

         Button {
             x: (settingsDrawer.visible) ? settingsDrawer.x - width : Window.window.width - width
             anchors.top: parent.top
             width: AppSettings.iconSize
             height: width
             opacity: rootItem.showState * 0.6 + 0.4
             visible: opacity
             icon.width: width * 0.3
             icon.height: height * 0.3
             icon.source: "qrc:/images/icon_settings.png"
             icon.color: "transparent"
             background: Rectangle {
                 color: "transparent"
             }
             onClicked: {
                 AppSettings.showSettingsView = !AppSettings.showSettingsView;
             }
         }

         Drawer {
             id: settingsDrawer
             modal: false
             edge: Qt.RightEdge
             interactive: false
             leftInset: -10
             topInset: -20
             bottomInset: -20
             topMargin: 10
             visible: AppSettings.showSettingsView

             background: Rectangle {
                 color: "#80404040"
                 border.color: "#000000"
                 border.width: 1
                 opacity: 0.8
             }

             Column {
                 id: settingsArea
             }
             enter: Transition {
                 NumberAnimation {
                     property: "position"
                     to: 1.0
                     duration: 800
                     easing.type: Easing.InOutQuad
                 }
             }

             exit: Transition {
                 NumberAnimation {
                     property: "position"
                     to: 0.0
                     duration: 800
                     easing.type: Easing.InOutQuad
                 }
             }
         }
     }