icons/cicon.pl

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