import QtQuick
import QtQuick.Controls.Material
import QtQuick.Layouts

Window {
    width: 640
    height: 480
    visible: true
    title: qsTr("Hello World")

    Button {
        text: "Button"
        onClicked: {
            popup.open()
        }
    }

    Dialog {
        id: popup

        anchors.centerIn: parent

        header: Label {
            text: "Header"
            font.pixelSize: 21 // <--- 21
            Component.onCompleted: {
                console.log("Header", implicitHeight) // implicitHeight: 28
            }
        }

        contentItem: TextField {
            id: field
            font.pixelSize: 34
            Component.onCompleted: {
                console.log("TextField", implicitHeight)  // implicitHeight: 62
            }
        }
    }
}