apps/konsole/tests/color-spaces.pl

   1 #!/usr/bin/perl
   2 # Author: Todd Larason <jtl@molehill.org>
   3 # $XFree86: xc/programs/xterm/vttests/256colors2.pl,v 1.1 1999/07/11 08:49:54 dawes Exp $
   4
   5 print "256 color mode\n\n";
   6
   7 # display back ground colors
   8
   9 for ($fgbg = 38; $fgbg <= 48; $fgbg +=10) {
  10
  11 # first the system ones:
  12 print "System colors:\n";
  13 for ($color = 0; $color < 8; $color++) {
  14     print "\x1b[${fgbg};5;${color}m::";
  15 }
  16 print "\x1b[0m\n";
  17 for ($color = 8; $color < 16; $color++) {
  18     print "\x1b[${fgbg};5;${color}m::";
  19 }
  20 print "\x1b[0m\n\n";
  21
  22 # now the color cube
  23 print "Color cube, 6x6x6:\n";
  24 for ($green = 0; $green < 6; $green++) {
  25     for ($red = 0; $red < 6; $red++) {
  26         for ($blue = 0; $blue < 6; $blue++) {
  27             $color = 16 + ($red * 36) + ($green * 6) + $blue;
  28             print "\x1b[${fgbg};5;${color}m::";
  29         }
  30         print "\x1b[0m ";
  31     }
  32     print "\n";
  33 }
  34
  35 # now the grayscale ramp
  36 print "Grayscale ramp:\n";
  37 for ($color = 232; $color < 256; $color++) {
  38     print "\x1b[${fgbg};5;${color}m::";
  39 }
  40 print "\x1b[0m\n\n";
  41
  42 }
  43
  44 print "Examples for the 3-byte color mode\n\n";
  45
  46 for ($fgbg = 38; $fgbg <= 48; $fgbg +=10) {
  47
  48 # now the color cube
  49 print "Color cube\n";
  50 for ($green = 0; $green < 256; $green+=51) {
  51     for ($red = 0; $red < 256; $red+=51) {
  52         for ($blue = 0; $blue < 256; $blue+=51) {
  53             print "\x1b[${fgbg};2;${red};${green};${blue}m::";
  54         }
  55         print "\x1b[0m ";
  56     }
  57     print "\n";
  58 }
  59
  60 # now the grayscale ramp
  61 print "Grayscale ramp:\n";
  62 for ($gray = 8; $gray < 256; $gray+=10) {
  63     print "\x1b[${fgbg};2;${gray};${gray};${gray}m::";
  64 }
  65 print "\x1b[0m\n\n";
  66
  67 }