text: /*
   * vim:ts=4:sw=4:expandtab
   *
   * i3 - an improved dynamic tiling window manager
   * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
   *
   */
  #include <stdlib.h>
  #include <stdint.h>
  
  #include "libi3.h"
  
  /*
   * Returns the colorpixel to use for the given hex color (think of HTML). Only
   * works for true-color (vast majority of cases) at the moment, avoiding a
   * roundtrip to X11.
   *
   * 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.
   *
   * NOTE that this function may in the future rely on a global xcb_connection_t
   * variable called 'conn' to be present.
   *
   */
  uint32_t get_colorpixel(const char *hex) {
      char strgroups[3][3] = {{hex[1], hex[2], '\0'},
                              {hex[3], hex[4], '\0'},
                              {hex[5], hex[6], '\0'}};
      uint8_t r = strtol(strgroups[0], NULL, 16);
      uint8_t g = strtol(strgroups[1], NULL, 16);
      uint8_t b = strtol(strgroups[2], NULL, 16);
  
      /* We set the first 8 bits high to have 100% opacity in case of a 32 bit
       * color depth visual. */
      return (0xFF << 24) | (r << 16 | g << 8 | b);
  }
  