Extra pixels still remains!
Is this a QML bug?

@ Rectangle
{
id: rect
anchors.fill: textContainer
color: "yellow"
}

Item
{
    id: textContainer

    width: 100
    height: 50

    anchors.centerIn: parent
}

Text
{
    id: testText

    // NOTE: auto width

    anchors.centerIn: textContainer

    text: "aa"
    //verticalAlignment: Text.AlignTop  // <-- NOT NEEDED
    //horizontalAlignment: Text.AlignLeft   // <-- NOT NEEDED

    scale: Math.min((textContainer.width / paintedWidth), (textContainer.height / paintedHeight))
    //transformOrigin: Item.Center   // <-- NOT NEEDED
    color: "black"
}

@

This seems to work but vertical expansion still does not fill the whole height.
Please correct me if I'm wrong, but I believe paintedHeight should be the height in pixel of the text being rendered.
However, this does not seem the case, as a border of a few pixels still remains, both in the upper and the lower part of the rectangle.
Is this behavior due to the render engine leaving a few extra pixels for characters potentially higher than 'a' (e.g., 't' or 'q'), since the font being used is not monospace?
Thanks in advance.

I tried with a vertical expansion changing the text to "aa". In this case, (width / paintedWidth) is greather than (height / paintedHeight), therefore the scale should be (height / paintedHeight) and I expect the text height will be the same as the box.

But the result is !http://oi62.tinypic.com/2vvq0xs.jpg(http://oi62.tinypic.com/2vvq0xs.jpg)!

What is wrong?

@ //verticalAlignment: Text.AlignVCenter
//horizontalAlignment: Text.AlignHCenter@

Result: !http://oi60.tinypic.com/24mgtn4.jpg(http://oi60.tinypic.com/24mgtn4.jpg)!

With only vertical alignment:

@ verticalAlignment: Text.AlignVCenter
//horizontalAlignment: Text.AlignHCenter@

Result: !http://oi59.tinypic.com/25f6hro.jpg(http://oi59.tinypic.com/25f6hro.jpg)!