spanner padding

[Mark Polesky]

Hi everyone.

As usual, I cannot figure out if this is actually a bug, but here goes...

Increasing the left-padding for a DynamicTextSpanner moves the DynamicText to
the right. This seems wrong. Shouldn't the text stay put and the spanner be
shortened? See the attached file/image.

Increasing the right-padding does what I expect, whatever stencil is to the 
right of the spanner stays put, and the spanner is shortened accordingly.

Also, the default value for the left-padding is 0.5, which definitely moves the 
text to the right.

   bound-details (list):

   '((right (attach-dir . -1) (Y . 0) (padding . 0.75))
     (right-broken (attach-dir . 1) (padding . 0.0))
     (left (attach-dir . -1) (Y . 0) (stencil-offset 0 . -0.5) (padding . 0.5))
     (left-broken (attach-dir . 1))) 

http://lilypond.org/doc/v2.11/Documentation/user/lilypond-internals/DynamicTextSpanner

I don't have time right now to check the other spanners for this issue, but if 
it's a bug, I'd assume the other spanners may behave similarly.

- Mark

___________________________________________________________________________


\version "2.11.63-1"

\relative {
    %% this does what I expect -- padding goes between spanner and dynamic:
    \override DynamicTextSpanner #'bound-details #'right #'padding = #2
    
    %% this doesn't -- padding goes to the left of the "cresc." text:
    \override DynamicTextSpanner #'bound-details #'left #'padding = #2
    \crescTextCresc
    c\< c c c | c c c c\f
}

spanner-padding.PNG
Description: PNG image