I have a fundamental problem with the width of lilypond output, and
which should be fixed before releasing 2.4. Currently, I use
(interval-start (ly:stencil-extent page X))
but this isn't the right value. Reason: Contrary to TeX boxes,
lilypond's horizontal reference point is not always the left edge of
the output box:
^
|
+----+----------+
| | |
| | |
----+----+----------+--->
| | |
+----+----------+
|
|
We have `height' and `depth' as with TeX boxes, and we have `width'
and `extension' (to coin this term), where `width' is the amount right
of the y-axis, and `extension' the left amount (and let's assume that
`extension' is positive).
The above scheme code gives `width + extension', but I need `width'
only. How can I get that?
Werner
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