Item {
  width: 400
  height: 400
  Rectangle {
    y: 100
    anchors.horizontalCenter: parent.horizontalCenter
    border.color: "orange"
    width: content1.implicitWidth
    height: content1.implicitHeight
    Text { id: content1
        text: "Hello, World!\n Hello again!\nNoWrap"
        wrapMode: Text.NoWrap
    }
  }
  Rectangle {
    y: 200
    anchors.horizontalCenter: parent.horizontalCenter
    border.color: "orange"
    width: content2.implicitWidth
    height: content2.implicitHeight
    Text { id: content2
        text: "Hello, World!\n Hello again!\nWrap"
        wrapMode: Text.Wrap
    }
  }
}

import QtQuick 2.12
import QtQuick.Controls 2.12

ApplicationWindow {
  width: 640
  height: 480
  Button {
    anchors.centerIn: parent
    text: "test button"

    HoverHandler { id: hoverHandler2 }
    ToolTip.visible: hoverHandler2.hovered
    ToolTip.text: "Multi line\n2nd line\nBox is too wide"
  }
}