From: NRK <nrk@disroot.org>
Date: Wed, 23 Mar 2022 20:00:00 +0000 (+0600)
Subject: introduce drw_fontset_getwidth_clamp()
X-Git-Url: https://git.xinqibao.xyz/dmenu.git/commitdiff_plain/6be057f060543bb0f3ed9423904263617cdffffe?ds=inline;hp=6be057f060543bb0f3ed9423904263617cdffffe

introduce drw_fontset_getwidth_clamp()

getting the width of a string is an O(n) operation, and in many cases
users only care about getting the width upto a certain number.

instead of calling drw_fontset_getwidth() and *then* clamping the
result, this patch introduces drw_fontset_getwidth_clamp() function,
similar to strnlen(), which will stop once we reach n.

the `invert` parameter was overloaded internally to preserve the API,
however library users should be calling drw_fontset_getwidth_clamp() and
not depend upon internal behavior of drw_text().
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