How to anchor to a rotated rectangle edge?

[Abin]

I want to draw few line in qml and to be relatively placed and used Rectangle with small width for it. Line 2 is rotated 45 degree. Line 3 is anchored to Line 1 and Line 2. The issue is when i anchor a Line 3 to Line 2, it takes points before rotated. Is there a way to resolve this?

Rectangle {
    id: idLine1
    height: 2
    color: "white"
    width: idFluidStatus.width/3
    anchors.left: idRect.right
    anchors.verticalCenter: idRect.verticalCenter
}

Rectangle {
    id: idLine2
    height: 2
    color: "white"
    transformOrigin: Item.BottomLeft
    rotation: 45
    width: idFluidStatus.width/3
    anchors.left: idRect.horizontalCenter
    anchors.top: idLine1.bottom
}

Rectangle {
    id: idLine3
    height: 2
    color: "red"
    anchors.left: idLine2.right
    anchors.right: idLine1.right
    anchors.bottom: idLine2.bottom
}

I am not able to upload image to show the output