components/x11/cmap_compact/src/cmcshow.c

   1 /*
   2 * Copyright (c) 1990, 2011, Oracle and/or its affiliates. All rights reserved.
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining a
   5 * copy of this software and associated documentation files (the "Software"),
   6 * to deal in the Software without restriction, including without limitation
   7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 * and/or sell copies of the Software, and to permit persons to whom the
   9 * Software is furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice (including the next
  12 * paragraph) shall be included in all copies or substantial portions of the
  13 * Software.
  14 *
  15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21 * DEALINGS IN THE SOFTWARE.
  22 *
  23 */
  24
  25 #include <stdio.h>
  26 #include <X11/Xlib.h>
  27 #include "cmc.h"
  28 #include "cmcutil.h"
  29
  30
  31 static void print_xcolors(XColor *colors, int ncolors);
  32
  33
  34 /*
  35 ** Print contents of workspace colors file in human readable form.
  36 */
  37
  38 void
  39 cmc_show (void)
  40
  41 {
  42         const char *filename;
  43         FILE    *f;
  44
  45         filename = comp_colors_filename(basename_arg);
  46         if ((f = fopen(filename, "r")) == NULL)
  47                 fatal_error("cannot open file '%s' for reading\n", filename);
  48
  49         /* Check magic number and version */
  50         cmc_header_test(f);
  51
  52         for (;;) {
  53                 int     scr_num;
  54                 int     ncolors;
  55                 XColor  *colors;
  56
  57                 if (!cmc_read(f, &scr_num, &ncolors, &colors))
  58                         break;
  59
  60                 printf("Screen %s.%d\n", XDisplayName(display_name), scr_num);
  61                 printf("%d saved colors\n", ncolors);
  62
  63                 print_xcolors(colors, ncolors);
  64                 printf("\n");
  65
  66                 free((char *)colors);
  67         }
  68 }
  69
  70
  71 static void
  72 print_xcolors (XColor *colors, int ncolors)
  73
  74 {
  75         register XColor *c;
  76         register int    i;
  77         int             planes;
  78
  79         for (c = colors; c < colors + ncolors; c++) {
  80             planes = c->red | c->green | c->blue;
  81             for(i = 4; i > 1 && (planes&0xf)==0; i--) {
  82                 c->red >>= 4;
  83                 c->green >>= 4;
  84                 c->blue >>= 4;
  85                 planes >>= 4;
  86             }
  87             printf("#%0*x%0*x%0*x\n", i, c->red, i, c->green, i, c->blue);
  88         }
  89 }