Move get_colorpixel to libi3, use it everywhere else

src/xcb.c

@@ -63,26 +63,6 @@ i3Font load_font(const char *pattern, bool fallback) {
     return new;
 }
 
-/*
- * Returns the colorpixel to use for the given hex color (think of HTML).
- *
- * The hex_color has to start with #, for example #FF00FF.
- *
- * NOTE that get_colorpixel() does _NOT_ check the given color code for validity.
- * This has to be done by the caller.
- *
- */
-uint32_t get_colorpixel(char *hex) {
-    char strgroups[3][3] = {{hex[1], hex[2], '\0'},
-                            {hex[3], hex[4], '\0'},
-                            {hex[5], hex[6], '\0'}};
-    uint32_t rgb16[3] = {(strtol(strgroups[0], NULL, 16)),
-                         (strtol(strgroups[1], NULL, 16)),
-                         (strtol(strgroups[2], NULL, 16))};
-
-    return (rgb16[0] << 16) + (rgb16[1] << 8) + rgb16[2];
-}
-
 /*
  * Convenience wrapper around xcb_create_window which takes care of depth, generating an ID and checking
  * for errors.