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** Copyright (C) 2017 The Qt Company Ltd.
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** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit.
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import QtQuick 2.9
import QtQuick.Templates 2.2 as T
import QtQuick.Controls.Universal 2.2

Rectangle {
    implicitWidth: 20
    implicitHeight: 20

    color: !control.enabled ? "transparent" :
            control.down && !partiallyChecked ? control.Universal.baseMediumColor :
            control.checkState === Qt.Checked ? control.Universal.accent : "transparent"
    border.color: !control.enabled ? control.Universal.baseLowColor :
                   control.down ? control.Universal.baseMediumColor :
                   control.checked ? control.Universal.accent : control.Universal.baseMediumHighColor
    border.width: 2 // CheckBoxBorderThemeThickness

    property Item control
    readonly property bool partiallyChecked: control.checkState === Qt.PartiallyChecked

    Image {
        x: (parent.width - width) / 2
        y: (parent.height - height) / 2

        visible: control.checkState === Qt.Checked
        source: "image://universal/checkmark/" + (!control.enabled ? control.Universal.baseLowColor : control.Universal.chromeWhiteColor)
        sourceSize.width: width
        sourceSize.height: height
    }

    Rectangle {
        x: (parent.width - width) / 2
        y: (parent.height - height) / 2
        width: partiallyChecked ? parent.width / 2 : parent.width
        height: partiallyChecked ? parent.height / 2 : parent.height

        visible: !control.pressed && control.hovered || partiallyChecked
        color: !partiallyChecked ? "transparent" :
               !control.enabled ? control.Universal.baseLowColor :
                control.down ? control.Universal.baseMediumColor :
                control.hovered ? control.Universal.baseHighColor : control.Universal.baseMediumHighColor
        border.width: partiallyChecked ? 0 : 2 // CheckBoxBorderThemeThickness
        border.color: control.Universal.baseMediumLowColor
    }
}