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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().
Diffstat (limited to 'drw.c%25252525253fid%25252525253d22511c41d55a38a770541ae617a09383d5e6ad1c%252525253fid%252525253d77526f756e23e362081ac807521f901f2e5cd5e6%2525253fid%2525253d77526f756e23e362081ac807521f901f2e5cd5e6&id2%2525253d7269c5355d257dd2ad2c53f15dc9c1cf6796aea5%25253fid%25253d77526f756e23e362081ac807521f901f2e5cd5e6&id2%25253d7269c5355d257dd2ad2c53f15dc9c1cf6796aea5%253fid%253d77526f756e23e362081ac807521f901f2e5cd5e6%3fid%3d7269c5355d257dd2ad2c53f15dc9c1cf6796aea5?id=6be057f060543bb0f3ed9423904263617cdffffe')
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