Function X11_set_map_font

win/X11/winmap.c:1804–1856

#ifdef ENHANCED_SYMBOLS
static void
X11_set_map_font(struct xwindow *wp)
{
    struct map_info_t *map_info = wp->map_information;
    XFontStruct *fs;
    Atom font_atom;
    const char *font_name;
    unsigned dashes;
    const char *p;
    size_t len;
    char unicode_font[BUFSZ];
    Font font_id;

    /* Query the configured font for the map */
    fs = WindowFontStruct(wp->w);
    map_info->text_map.font = fs;
    if (!XGetFontProperty(fs, XA_FONT, &font_atom)) {
        return;
    }
    font_name = XGetAtomName(XtDisplay(wp->w), font_atom);
    if (font_name == NULL) {
        return;
    }

    /* Proceed to the registry name */
    dashes = 13;
    p = font_name;
    while (dashes != 0) {
        const char *q = strchr(p, '-');
        if (q == NULL) {
            break;
        }
        p = q + 1;
        --dashes;
    }

    /* Substitute "iso10646-1" for the registry name and encoding */
    len = (size_t) (p - font_name);
    if (dashes != 0 || len + 11 > sizeof(unicode_font)) {
        return;
    }

    memcpy(unicode_font, font_name, len);
    strcpy(unicode_font + len, "iso10646-1");
    font_name = unicode_font;

    font_id = XLoadFont(XtDisplay(wp->w), font_name);
    map_info->text_map.font = XQueryFont(XtDisplay(wp->w), font_id);
    if (map_info->text_map.font == NULL) {
        /* Fallback in case no iso10646 */
        map_info->text_map.font = fs;
    }
}
#endif

static Font