icons/cicon.pl

   1 #!/usr/bin/perl
   2
   3 # Given a list of input PNGs, create a C source file file
   4 # containing a const array of XPMs, under the name `xpm_icon'.
   5
   6 $k = 0;
   7 @xpms = ();
   8 foreach $f (@ARGV) {
   9   # XPM format is generated directly by ImageMagick, so that's easy
  10   # enough. We just have to adjust the declaration line so that it
  11   # has the right name, linkage and storage class.
  12   @lines = ();
  13   open XPM, "convert $f xpm:- |";
  14   push @lines, $_ while <XPM>;
  15   close XPM;
  16   die "XPM from $f in unexpected format\n" unless $lines[1] =~ /^static.*\{$/;
  17   $lines[1] = "static const char *const xpm_icon_$k"."[] = {\n";
  18   $k++;
  19   push @xpms, @lines, "\n";
  20 }
  21
  22 # Now output.
  23 foreach $line (@xpms) { print $line; }
  24 print "const char *const *const xpm_icons[] = {\n";
  25 for ($i = 0; $i < $k; $i++) { print "    xpm_icon_$i,\n"; }
  26 print "};\n";
  27 print "const int n_xpm_icons = $k;\n";