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Bugfix: if a font provides no per-char info for width, fall back to the default (Thanks Ciprian)

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Michael Stapelberg 2010-01-07 14:38:00 +01:00
parent 86b0dab7ea
commit d1a0e930a8
1 changed files with 16 additions and 1 deletions
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17
src/xcb.c
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@ -344,10 +344,25 @@ static xcb_charinfo_t *get_charinfo(int col, int row, xcb_query_font_reply_t *fo
int predict_text_width(xcb_connection_t *conn, const char *font_pattern, char *text, int length) {
xcb_query_font_reply_t *font_info;
xcb_charinfo_t *table;
xcb_generic_error_t *error;
int i, width = 0;
i3Font *font = load_font(conn, font_pattern);
font_info = xcb_query_font_reply(conn, xcb_query_font_unchecked(conn, font->id), NULL);
font_info = xcb_query_font_reply(conn, xcb_query_font(conn, font->id), &error);
if (error != NULL) {
fprintf(stderr, "ERROR: query font (X error code %d)\n", error->error_code);
/* We return the rather safe guess of 7 pixels, because a
* rendering error is better than a crash. Plus, the user will
* see the error on his stderr. */
return 7;
}
/* If no per-char info is available for this font, we use the default */
if (xcb_query_font_char_infos_length(font_info) == 0) {
DLOG("Falling back on default char_width of %d pixels\n", font_info->max_bounds.character_width);
return (font_info->max_bounds.character_width * length);
}
table = xcb_query_font_char_infos(font_info);
for (i = 0; i < 2 * length; i += 2) {