+++ /dev/null
-package Font::TTF::Maxp;
-
-=head1 NAME
-
-Font::TTF::Maxp - Maximum Profile table in a font
-
-=head1 DESCRIPTION
-
-A collection of useful instance variables following the TTF standard. Probably
-the most used being C<numGlyphs>. Note that this particular value is
-foundational and should be kept up to date by the application, it is not updated
-by C<update>.
-
-Handles table versions 0.5, 1.0
-
-=head1 INSTANCE VARIABLES
-
-No others beyond those specified in the standard:
-
- numGlyphs
- maxPoints
- maxContours
- maxCompositePoints
- maxCompositeContours
- maxZones
- maxTwilightPoints
- maxStorage
- maxFunctionDefs
- maxInstructionDefs
- maxStackElements
- maxSizeOfInstructions
- maxComponentElements
- maxComponentDepth
-
-
-=head1 METHODS
-
-=cut
-
-use strict;
-use vars qw(@ISA %fields @field_info);
-use Font::TTF::Utils;
-
-@ISA = qw(Font::TTF::Table);
-@field_info = (
- 'numGlyphs' => 'S',
- 'maxPoints' => 'S',
- 'maxContours' => 'S',
- 'maxCompositePoints' => 'S',
- 'maxCompositeContours' => 'S',
- 'maxZones' => 'S',
- 'maxTwilightPoints' => 'S',
- 'maxStorage' => 'S',
- 'maxFunctionDefs' => 'S',
- 'maxInstructionDefs' => 'S',
- 'maxStackElements' => 'S',
- 'maxSizeOfInstructions' => 'S',
- 'maxComponentElements' => 'S',
- 'maxComponentDepth' => 'S');
-
-sub init
-{
- my ($k, $v, $c, $i);
- for ($i = 0; $i < $#field_info; $i += 2)
- {
- ($k, $v, $c) = TTF_Init_Fields($field_info[$i], $c, $field_info[$i + 1]);
- next unless defined $k && $k ne "";
- $fields{$k} = $v;
- }
-}
-
-
-=head2 $t->read
-
-Reads the table into memory
-
-=cut
-
-sub read
-{
- my ($self) = @_;
- my ($dat);
-
- $self->SUPER::read or return $self;
-
- init unless defined $fields{'numGlyphs'}; # any key would do
- $self->{' INFILE'}->read($dat, 4);
- $self->{'version'} = TTF_Unpack("v", $dat);
-
- if ($self->{'version'} == 0.5)
- {
- $self->{' INFILE'}->read($dat, 2);
- $self->{'numGlyphs'} = unpack("n", $dat);
- } else
- {
- $self->{' INFILE'}->read($dat, 28);
- TTF_Read_Fields($self, $dat, \%fields);
- }
- $self;
-}
-
-
-=head2 $t->out($fh)
-
-Writes the table to a file either from memory or by copying.
-
-=cut
-
-sub out
-{
- my ($self, $fh) = @_;
-
- return $self->SUPER::out($fh) unless $self->{' read'};
- $fh->print(TTF_Pack("v", $self->{'version'}));
-
- if ($self->{'version'} == 0.5)
- { $fh->print(pack("n", $self->{'numGlyphs'})); }
- else
- { $fh->print(TTF_Out_Fields($self, \%fields, 28)); }
- $self;
-}
-
-
-=head2 $t->update
-
-Calculates all the maximum values for a font based on the glyphs in the font.
-Only those fields which require hinting code interpretation are ignored and
-left as they were read.
-
-=cut
-
-sub update
-{
- my ($self) = @_;
- my ($i, $num, @n, @m, $j);
- my (@name) = qw(maxPoints maxContours maxCompositePoints maxCompositeContours
- maxSizeOfInstructions maxComponentElements maxComponentDepth);
-
- return undef unless ($self->SUPER::update);
- return undef if ($self->{'version'} == 0.5); # only got numGlyphs
- return undef unless (defined $self->{' PARENT'}{'loca'});
- $self->{' PARENT'}{'loca'}->update;
- $num = $self->{'numGlyphs'};
-
- for ($i = 0; $i < $num; $i++)
- {
- my ($g) = $self->{' PARENT'}{'loca'}{'glyphs'}[$i] || next;
-
- @n = $g->maxInfo;
-
- for ($j = 0; $j <= $#n; $j++)
- { $m[$j] = $n[$j] if $n[$j] > $m[$j]; }
- }
-
- foreach ('prep', 'fpgm')
- { $m[4] = length($self->{' PARENT'}{$_}{' dat'})
- if (defined $self->{' PARENT'}{$_}
- && length($self->{' PARENT'}{$_}{' dat'}) > $m[4]);
- }
-
- for ($j = 0; $j <= $#name; $j++)
- { $self->{$name[$j]} = $m[$j]; }
- $self;
-}
-1;
-
-
-=head1 BUGS
-
-None known
-
-=head1 AUTHOR
-
-Martin Hosken Martin_Hosken@sil.org. See L<Font::TTF::Font> for copyright and
-licensing.
-
-=cut
fnp / librarian.git / blobdiff