/******************************************************************************
**
** Copyright (C) 2020 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Quick Ultralite module.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
******************************************************************************/
import QtQuick 2.4

Item {
    id: root
    width: 700
    property int counter: 0
    readonly property int opacityAnimationDuration: 1000
    readonly property int listingAnimationDuration: 1000
    readonly property int elementsCount: 17
    property bool active: false
    property bool isDayMode: true

    readonly property ListModel tachoElements: ListModel {
        id: tachoImagesModel
        ListElement {
            yPos: 81
            xPos: 0
        }
        ListElement {
            yPos: 63
            xPos: 35
        }
        ListElement {
            yPos: 43
            xPos: 75
        }
        ListElement {
            yPos: 25
            xPos: 113
        }
        ListElement {
            yPos: 7
            xPos: 156
        }
        ListElement {
            yPos: 0
            xPos: 204
        }
        ListElement {
            yPos: 0
            xPos: 251
        }
        ListElement {
            yPos: 0
            xPos: 298
        }
        ListElement {
            yPos: 0
            xPos: 345
        }
        ListElement {
            yPos: 0
            xPos: 390
        }
        ListElement {
            yPos: 0
            xPos: 433
        }
        ListElement {
            yPos: 0
            xPos: 485
        }
        ListElement {
            yPos: 7
            xPos: 528
        }
        ListElement {
            yPos: 25
            xPos: 572
        }
        ListElement {
            yPos: 43
            xPos: 612
        }
        ListElement {
            yPos: 63
            xPos: 649
        }
        ListElement {
            yPos: 81
            xPos: 685
        }
    }
    Repeater {
        id: scale
        model: tachoElements
        Text {
            text: index
            y: model.yPos
            x: model.xPos
            color: index >= 13 ? Style.pureRed : (isDayMode ? Style.black : Style.white)
            opacity: index >= counter ? 0.0 : 1.0
            font.pixelSize: 18
            font.family: "Barlow-mono"
            Behavior on opacity {
                NumberAnimation {
                    duration: root.opacityAnimationDuration
                }
            }
        }
    }

    onActiveChanged: {
        if (active) {
            root.opacity = 1
            startAnimation()
        } else {
            hiddingAnimation()
        }
    }

    function startAnimation() {
        showAnimation.start()
    }

    function hiddingAnimation() {
        hideAnimation.start()
    }

    NumberAnimation {
        id: showAnimation
        target: root
        property: "counter"
        from: 0
        to: root.elementsCount
        duration: root.listingAnimationDuration
    }

    SequentialAnimation {
        id: hideAnimation
        NumberAnimation {
            target: root
            property: "opacity"
            duration: 500
            to: 0
        }
        ScriptAction {
            script: {
                root.counter = 0
            }
        }
    }
}