4.3BSD - /usr/src/new/X/Xlib/XParseColor.c

   1: #include <X/mit-copyright.h>
   2: 
   3: /* $Header: XParseColor.c,v 10.4 86/02/01 15:37:40 tony Rel $ */
   4: /* Copyright    Massachusetts Institute of Technology    1985	*/
   5: 
   6: #include "XlibInternal.h"
   7: 
   8: Status XParseColor (spec, def)
   9:     register char *spec;
  10:     Color *def;
  11: {
  12:     register Display *dpy;
  13:     register XReq *req;
  14:     XRep rep;
  15:     register int n, i;
  16:     int r, g, b;
  17:     char c;
  18: 
  19:     n = strlen (spec);
  20:     if (*spec != '#') {
  21:         GetReq (X_LookupColor, 0);
  22:         req->param.s[0] = n;
  23:         Data (dpy, spec, n);
  24:         if (!_XReply (dpy, &rep))
  25:             return (0);
  26:         def->red = rep.param.u[0];
  27:         def->green = rep.param.u[1];
  28:         def->blue = rep.param.u[2];
  29:         return (1);
  30:     }
  31:     spec++;
  32:     n--;
  33:     if (n != 3 && n != 6 && n != 9 && n != 12)
  34:         return (0);
  35:     n /= 3;
  36:     r = g = b = 0;
  37:     do {
  38:         r = g;
  39:         g = b;
  40:         b = 0;
  41:         for (i = n; --i >= 0; ) {
  42:         c = *spec++;
  43:         b <<= 4;
  44:         if (c >= '0' && c <= '9')
  45:             b |= c - '0';
  46:         else if (c >= 'A' && c <= 'F')
  47:             b |= c - ('A' - 10);
  48:         else if (c >= 'a' && c <= 'f')
  49:             b |= c - ('a' - 10);
  50:         else return (0);
  51:         }
  52:     } while (*spec);
  53:     n <<= 2;
  54:     n = 16 - n;
  55:     def->red = r << n;
  56:     def->green = g << n;
  57:     def->blue = b << n;
  58:     return (1);
  59: }

Defined functions