2 * vim:ts=4:sw=4:expandtab
4 * i3 - an improved dynamic tiling window manager
5 * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
15 * Returns the colorpixel to use for the given hex color (think of HTML). Only
16 * works for true-color (vast majority of cases) at the moment, avoiding a
19 * The hex_color has to start with #, for example #FF00FF.
21 * NOTE that get_colorpixel() does _NOT_ check the given color code for validity.
22 * This has to be done by the caller.
24 * NOTE that this function may in the future rely on a global xcb_connection_t
25 * variable called 'conn' to be present.
28 uint32_t get_colorpixel(const char *hex) {
30 if (strlen(hex) == strlen("#rrggbbaa")) {
34 alpha[0] = alpha[1] = 'F';
37 char strgroups[4][3] = {
38 {hex[1], hex[2], '\0'},
39 {hex[3], hex[4], '\0'},
40 {hex[5], hex[6], '\0'},
41 {alpha[0], alpha[1], '\0'}};
42 uint8_t r = strtol(strgroups[0], NULL, 16);
43 uint8_t g = strtol(strgroups[1], NULL, 16);
44 uint8_t b = strtol(strgroups[2], NULL, 16);
45 uint8_t a = strtol(strgroups[3], NULL, 16);
47 return (a << 24) | (r << 16 | g << 8 | b);