Alignment of text mark in a function

[Ed Gordijn]

Hi,
    
    
    I am resending this message because I think it didn't reach the list. That happens also to my first message I posted last week (see http://old.nabble.com/Add-text-to-rehearsal-mark-td31294800.html#a31294800). Is this a common problem?


    
    I want to print a mark that consist of a rehearsal mark and a text
    and want to align it on the center of the rehearsal mark. I know how
    I would this manually:
    
        \once \override Score.RehearsalMark #'self-alignment-X = #-0.83
        \mark \markup { \bold { \box "10" \normalsize "Theme from 007"
    }}
    
    But I want this in a function so I could use it with other text and
    marks.
    
    I worked out two options. The first option (IIa in the script) is
    the manual approach. This works fine but although I know how to
    calculate the override value in a markup script I don't know how I
    should get the result in the override. Is that possible?
    
    
    Option IIb is something that I got from a snippet about centering
    Dynamics (see http://old.nabble.com/dynamic-alignment-td30444495.html).
    It works almost, but doesn't behave as I would expect when the mark
    is aligned on the clef. Can that be solved?
    
    
    Greetings, Ed

CenterMark.ly
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