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author | Miles Alan <m@milesalan.com> | 2021-08-07 21:34:35 -0400 |
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committer | Hiltjo Posthuma <hiltjo@codemadness.org> | 2021-08-09 18:20:51 +0200 |
commit | c585e8e498ec6f9c423ab8ea07cf853ee5b05fbe (patch) | |
tree | f5e85f3b182436b7a5c059c72791506911ee6c0a | |
parent | 523aa08f51a88c59ad4b1f600f8ce3d122e9e289 (diff) | |
download | dmenu-c585e8e498ec6f9c423ab8ea07cf853ee5b05fbe.tar.gz dmenu-c585e8e498ec6f9c423ab8ea07cf853ee5b05fbe.tar.bz2 dmenu-c585e8e498ec6f9c423ab8ea07cf853ee5b05fbe.zip |
Improve speed of drw_text when provided with large strings
Calculates len & ew in drw_font_getexts loop by incrementing instead of
decrementing; as such avoids proportional increase in time spent in loop
based on provided strings size.
-rw-r--r-- | drw.c | 7 |
1 files changed, 5 insertions, 2 deletions
@@ -310,8 +310,11 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp if (utf8strlen) { drw_font_getexts(usedfont, utf8str, utf8strlen, &ew, NULL); /* shorten text if necessary */ - for (len = MIN(utf8strlen, sizeof(buf) - 1); len && ew > w; len--) - drw_font_getexts(usedfont, utf8str, len, &ew, NULL); + if (ew > w) + for (ew = 0, len = 0; ew < w - lpad * 2 && len < MIN(utf8strlen, sizeof(buf) - 1); len++) + drw_font_getexts(usedfont, utf8str, len, &ew, NULL); + else + len = MIN(utf8strlen, sizeof(buf) - 1); if (len) { memcpy(buf, utf8str, len); |