ly:one-line-breaking doesn't properly handle indent value/side margins

[Urs Liska]

Hi,

while testing the new #ly:one-line-auto-height-breaking I noticed some
issues with the already available #ly:one-line-breaking.

It seems the left and right margins are not properly handled in that mode:

The right margin is way too large to my eyes, which you can see when
setting right-margin to 0\cm.

The left margin is too small and doesn't respond to setting the indent
variable.
Quite the contrary, increasing the indent doesn't move the system to the
right but the instrument name to the left.

You can see both in the attached file. The image shows the unclipped
left/right/top margins compiled from the settings in the attached .ly file.

Urs

one-line-breaking.ly
Description: Text Data

one-line-breaking.png
Description: PNG image