C

Qt Cluster: Rendering and Recovery from Main UI Failure

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

// This file is part of the Qt Safe Renderer module

import QtQuick
import ".."
import ClusterDemo

Flipable {
    id: flipable
    height: width
    property bool flipped: false
    signal loaded
    property alias flipRotation: flipRotation
    property alias rpm: rpm

    property int rpmValue: 4000

    front: Loader {
        id: rpm
        width: parent.width
        height: parent.width
        asynchronous: true
        source: "RPMGauge_painter.qml"
        onLoaded: flipable.loaded()
    }

    back: Loader {
        width: parent.width
        height: parent.width
        asynchronous: true
        source: "../CarParkingSports.qml"
    }

    transform: Rotation {
        id: flipRotation
        origin.x: flipable.width / 2
        origin.y: flipable.height / 2
        axis.x: 0; axis.y: 1; axis.z: 0     // set axis.y to 1 to rotate around y-axis
        angle: 90   // the default angle
    }

    states: [
        State {
            name: "back"
            PropertyChanges {
                target: flipRotation
                angle: 180
            }
            PropertyChanges {
                target: flipable.front
                visible: false
            }

            PropertyChanges {
                target: flipable.back
                visible: true
            }

            when: flipable.flipped
        },
    State {
        name: "front"
        PropertyChanges {
            target: flipRotation
            angle: 0
        }
        PropertyChanges {
            target: flipable.front
            visible: true
        }

        PropertyChanges {
            target: flipable.back
            visible: false
        }
         when: !flipable.flipped
    }
    ]

    transitions: Transition {
        NumberAnimation { target: flipRotation; property: "angle"; duration: 300 }
    }

    //Fill background while flipping. TODO think better way to do it
    Rectangle {
        anchors.centerIn: parent
        radius: flipable.width+4 /2
        width: flipable.width+4
        height: flipable.width+4
        color: "black"
        z: -1
    }
}