import QtQuick 2.11
import QtQuick.Window 2.2

Item {
    anchors.fill: parent
    readonly property real bg_width: 2280.
    readonly property real bg_height: 1440.
    readonly property real refWidth:  480 * (bg_width/570)  /*1920.*/
    readonly property real refHeight: 320 * (bg_height/360) /*1280.*/
    readonly property real refDpi: 72.
    readonly property int dpi: Screen.pixelDensity * 25.4 // 1 дюйм = 25.4 мм
    readonly property real ratio: Math.min(height/refHeight1(), width/refWidth1())
    property real ratioFont: Math.min(height*refDpi/(dpi*refHeight), width*refDpi/(dpi*refWidth));

    function refWidth1() {
        return (width > height) ? refWidth : refHeight;
    }
    function refHeight1() {
        return (width > height) ? refHeight : refWidth;
    }

    Component.onCompleted: {
        if (ratioFont < 1.)
            ratioFont = 1.
    }
}