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ISHIGAKI / Win32-PowerPoint-0.10 / lib / Win32 / PowerPoint / Utils.pm 

            

              
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package Win32::PowerPoint::Utils;
use strict;
use warnings;
use Exporter 'import';
use Carp;
our @EXPORT_OK = qw(
  RGB
  canonical_alignment
  canonical_pattern
  canonical_datetime
  convert_cygwin_path
  _defined_or
);
sub _defined_or {
  my ($target, $alternative) = @_;
  return defined $target ? $target : $alternative;
}
sub RGB {
  my @color;
  if ( @_ == 1 && !ref $_[0] ) { # combined string such as '255, 255, 255'
    my $str = shift;
    $str =~ s/^RGB//i;
    $str =~ tr/()//d;
    @color = _check_colors( split /[\s,]+/, $str );
  }
  elsif ( @_ == 1 && ref $_[0] eq 'ARRAY' ) {
    @color = _check_colors( @{ $_[0] } );
  }
  elsif ( @_ == 3 ) {
    @color = _check_colors( @_ );
  }
  croak "wrong color specification" unless @color == 3;
  return $color[2] * 65536 + $color[1] * 256 + $color[0];
}
sub _check_colors {
  my @colors = @_;
  return map  { $_ = 0 if $_ < 0; $_ = 255 if $_ > 255; $_ }
         grep { defined $_ && /^\d+$/ }
         @colors;
}
sub canonical_alignment {
  my $align = shift;
  $align =~ s/^(?:pp)?align(?:ment)?//gi;
  $align = 'ppAlign' . (ucfirst lc $align);
  $align = 'ppAlignCenter'    if $align eq 'ppAlignCentre';
  $align = 'ppAlignmentMixed' if $align eq 'ppAlignMixed';
  $align;
}
sub canonical_pattern {
  my $pattern = shift;
  $pattern =~ s/^(?:mso)?Pattern//gi;
  $pattern =~ s/_([a-z])/\U$1\E/g;
  $pattern =~ s/(^|[0-9])([a-z])/$1\U$2\E/g;
  $pattern = "msoPattern$pattern";
  $pattern;
}
sub canonical_datetime {
  my $pattern = shift;
  $pattern =~ s/^(?:pp)?DateTime//gi;
  $pattern ="ppDateTime$pattern";
  $pattern;
}
sub convert_cygwin_path {
  my $path = shift;
  return $path unless $^O eq 'cygwin';
  return Cygwin::posix_to_win_path($path, 'absolute') if $] >= 5.010;
  require Filesys::CygwinPaths;
  return Filesys::CygwinPaths::fullwin32path($path);
}
1;
__END__
=head1 NAME
Win32::PowerPoint::Utils - Utility class
=head1 DESCRIPTION
This is used internally in L<Win32::PowerPoint>.
=head1 FUNCTIONS
=head2 RGB
Computes RGB color number from an array(ref) of RGB components or
color string like '255, 255, 255'. See also L<Win32::PowerPoint>.
=head2 canonical_alignment, canonical_pattern, canonical_datetime
Return canonicalized alignment/pattern/datetime format name to get constant's value.
=head2 convert_cygwin_path
Converts a Cygwin-ish path to a Windows-ish path.
=head1 SEE ALSO
L<Win32::PowerPoint>
=head1 AUTHOR
Kenichi Ishigaki, E<lt>ishigaki@cpan.orgE<gt>
=head1 COPYRIGHT AND LICENSE
Copyright (C) 2007 by Kenichi Ishigaki
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
=cut