- if(!drw || !drw->scheme)
- return;
- XSetForeground(drw->dpy, drw->gc, invert ? drw->scheme->fg->rgb : drw->scheme->bg->rgb);
- XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
- if(!text || !drw->font)
- return;
- olen = strlen(text);
- drw_font_getexts(drw->font, text, olen, &tex);
- th = drw->font->ascent + drw->font->descent;
- ty = y + (h / 2) - (th / 2) + drw->font->ascent;
- tx = x + (h / 2);
- /* shorten text if necessary */
- for(len = MIN(olen, sizeof buf); len && (tex.w > w - tex.h || w < tex.h); len--)
- drw_font_getexts(drw->font, text, len, &tex);
- if(!len)
- return;
- memcpy(buf, text, len);
- if(len < olen)
- for(i = len; i && i > len - 3; buf[--i] = '.');
- XSetForeground(drw->dpy, drw->gc, invert ? drw->scheme->bg->rgb : drw->scheme->fg->rgb);
- if(drw->font->set)
- XmbDrawString(drw->dpy, drw->drawable, drw->font->set, drw->gc, tx, ty, buf, len);
- else
- XDrawString(drw->dpy, drw->drawable, drw->gc, tx, ty, buf, len);
+ if (!(render = x || y || w || h)) {
+ w = ~w;
+ }
+
+ if (!drw || !drw->scheme) {
+ return 0;
+ } else if (render) {
+ XSetForeground(drw->dpy, drw->gc, invert ? drw->scheme->fg->pix : drw->scheme->bg->pix);
+ XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
+ }
+
+ if (!text || !drw->fontcount) {
+ return 0;
+ } else if (render) {
+ cmap = DefaultColormap(drw->dpy, drw->screen);
+ vis = DefaultVisual(drw->dpy, drw->screen);
+ d = XftDrawCreate(drw->dpy, drw->drawable, vis, cmap);
+ }
+
+ curfont = drw->fonts[0];
+ while (1) {
+ utf8strlen = 0;
+ utf8str = text;
+ nextfont = NULL;
+ while (*text) {
+ utf8charlen = utf8decode(text, &utf8codepoint, UTF_SIZ);
+ for (i = 0; i < drw->fontcount; i++) {
+ charexists = charexists || XftCharExists(drw->dpy, drw->fonts[i]->xfont, utf8codepoint);
+ if (charexists) {
+ if (drw->fonts[i] == curfont) {
+ utf8strlen += utf8charlen;
+ text += utf8charlen;
+ } else {
+ nextfont = drw->fonts[i];
+ }
+ break;
+ }
+ }
+
+ if (!charexists || (nextfont && nextfont != curfont)) {
+ break;
+ } else {
+ charexists = 0;
+ }
+ }
+
+ if (utf8strlen) {
+ drw_font_getexts(curfont, utf8str, utf8strlen, &tex);
+ /* shorten text if necessary */
+ for(len = MIN(utf8strlen, (sizeof buf) - 1); len && (tex.w > w - drw->fonts[0]->h || w < drw->fonts[0]->h); len--)
+ drw_font_getexts(curfont, utf8str, len, &tex);
+
+ if (len) {
+ memcpy(buf, utf8str, len);
+ buf[len] = '\0';
+ if(len < utf8strlen)
+ for(i = len; i && i > len - 3; buf[--i] = '.');
+
+ if (render) {
+ th = curfont->ascent + curfont->descent;
+ ty = y + (h / 2) - (th / 2) + curfont->ascent;
+ tx = x + (h / 2);
+ XftDrawStringUtf8(d, invert ? &drw->scheme->bg->rgb : &drw->scheme->fg->rgb, curfont->xfont, tx, ty, (XftChar8 *)buf, len);
+ }
+
+ x += tex.w;
+ w -= tex.w;
+ }
+ }
+
+ if (!*text) {
+ break;
+ } else if (nextfont) {
+ charexists = 0;
+ curfont = nextfont;
+ } else {
+ /* Regardless of whether or not a fallback font is found, the
+ * character must be drawn.
+ */
+ charexists = 1;
+
+ if (drw->fontcount >= DRW_FONT_CACHE_SIZE) {
+ continue;
+ }
+
+ fccharset = FcCharSetCreate();
+ FcCharSetAddChar(fccharset, utf8codepoint);
+
+ if (!drw->fonts[0]->pattern) {
+ /* Refer to the comment in drw_font_xcreate for more
+ * information.
+ */
+ die("The first font in the cache must be loaded from a font string.\n");
+ }
+
+ fcpattern = FcPatternDuplicate(drw->fonts[0]->pattern);
+ FcPatternAddCharSet(fcpattern, FC_CHARSET, fccharset);
+ FcPatternAddBool(fcpattern, FC_SCALABLE, FcTrue);
+
+ FcConfigSubstitute(NULL, fcpattern, FcMatchPattern);
+ FcDefaultSubstitute(fcpattern);
+ match = XftFontMatch(drw->dpy, drw->screen, fcpattern, &result);
+
+ FcCharSetDestroy(fccharset);
+ FcPatternDestroy(fcpattern);
+
+ if (match) {
+ curfont = drw_font_xcreate(drw, NULL, match);
+ if (curfont && XftCharExists(drw->dpy, curfont->xfont, utf8codepoint)) {
+ drw->fonts[drw->fontcount++] = curfont;
+ } else {
+ if (curfont) {
+ drw_font_free(curfont);
+ }
+ curfont = drw->fonts[0];
+ }
+ }
+ }
+ }
+
+ if (render) {
+ XftDrawDestroy(d);
+ }
+
+ return x;