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From: | Urs Liska |
Subject: | Re: Find Voice/etc. context from Staff/etc. context |
Date: | Wed, 11 Jul 2018 23:35:12 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 |
Am 11.07.2018 um 10:33 schrieb David Kastrup:
Urs Liska <address@hidden> writes:One more understanding question regarding contexts and engravers. If I \consist an engraver in a bottom context like Voice I can travel up the chain of parent contexts, retrieving their name and id properties. But if I \consist it in Staff level contexts I don't see if/how I can get to the bottom-level context a grob is possibly in.To be in any meaningful way "in a bottom-level context", a grob needs to be made by an engraver at bottom level. In that case you can call ly:translator-context on the third argument of the grob acknowledger which is the _source_ engraver rather than the current engraver.
OK, I have tested how this works, and I see how I can retrieve the lowest context of any given grob. But if I'm not mistaken this is only possible in acknowledgers, isn't it? But I have to get to that context in process-acknowledged or stop-translation-timestep.
By now I would know how to link that information to the grob in acknowledgers and read it later - but that would mean I have to look up the source-engraver context for *all* grobs and not only for those (the annotated grobs) where I actually need them.
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