-static xcb_charinfo_t *get_charinfo(int col, int row, xcb_query_font_reply_t *font_info,
- xcb_charinfo_t *table, bool dont_fallback) {
- xcb_charinfo_t *result;
-
- /* Bounds checking */
- if (row < font_info->min_byte1 || row > font_info->max_byte1 ||
- col < font_info->min_char_or_byte2 || col > font_info->max_char_or_byte2)
- return NULL;
-
- /* If we don’t have a table to lookup the infos per character, return the
- * minimum bounds */
- if (table == NULL)
- return &font_info->min_bounds;
-
- result = &table[((row - font_info->min_byte1) *
- (font_info->max_char_or_byte2 - font_info->min_char_or_byte2 + 1)) +
- (col - font_info->min_char_or_byte2)];
-
- /* If the character has an entry in the table, return it */
- if (result->character_width != 0 ||
- (result->right_side_bearing |
- result->left_side_bearing |
- result->ascent |
- result->descent) != 0)
- return result;
-
- /* Otherwise, get the default character and return its charinfo */
- if (dont_fallback)
- return NULL;
-
- return get_charinfo((font_info->default_char >> 8),
- (font_info->default_char & 0xFF),
- font_info,
- table,
- true);
+int predict_text_width(xcb_connection_t *conn, const char *font_pattern, char *text, int length) {
+ i3Font *font = load_font(conn, font_pattern);
+
+ xcb_query_text_extents_cookie_t cookie;
+ xcb_query_text_extents_reply_t *reply;
+ xcb_generic_error_t *error;
+ int width;
+
+ cookie = xcb_query_text_extents(conn, font->id, length, (xcb_char2b_t*)text);
+ if ((reply = xcb_query_text_extents_reply(conn, cookie, &error)) == NULL) {
+ ELOG("Could not get text extents (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 in his log. */
+ return 7;
+ }
+
+ width = reply->overall_width;
+ free(reply);
+ return width;