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package Imager::Font::FT2;
use strict;
use Imager;
use vars qw($VERSION @ISA);
@ISA = qw(Imager::Font);
BEGIN {
$VERSION = "0.86";
require XSLoader;
XSLoader::load('Imager::Font::FT2', $VERSION);
}
*_first = \&Imager::Font::_first;
sub new {
my $class = shift;
my %hsh=(color=>Imager::Color->new(255,0,0,255),
size=>15,
@_);
unless ($hsh{file}) {
$Imager::ERRSTR = "No font file specified";
return;
}
unless (-e $hsh{file}) {
$Imager::ERRSTR = "Font file $hsh{file} not found";
return;
}
unless ($Imager::formats{ft2}) {
$Imager::ERRSTR = "Freetype2 not supported in this build";
return;
}
my $id = i_ft2_new($hsh{file}, $hsh{'index'} || 0);
unless ($id) { # the low-level code may miss some error handling
$Imager::ERRSTR = Imager::_error_as_msg();
return;
}
return bless {
id => $id,
aa => $hsh{aa} || 0,
file => $hsh{file},
type => 't1',
size => $hsh{size},
color => $hsh{color},
utf8 => $hsh{utf8},
vlayout => $hsh{vlayout},
}, $class;
}
sub _draw {
my $self = shift;
my %input = @_;
if (exists $input{channel}) {
i_ft2_cp($self->{id}, $input{image}{IMG}, $input{'x'}, $input{'y'},
$input{channel}, $input{size}, $input{sizew} || 0,
$input{string}, , $input{align}, $input{aa}, $input{vlayout},
$input{utf8});
} else {
i_ft2_text($self->{id}, $input{image}{IMG},
$input{'x'}, $input{'y'},
$input{color}, $input{size}, $input{sizew} || 0,
$input{string}, $input{align}, $input{aa}, $input{vlayout},
$input{utf8});
}
}
sub _bounding_box {
my $self = shift;
my %input = @_;
return i_ft2_bbox($self->{id}, $input{size}, $input{sizew}, $input{string},
$input{utf8});
}
sub dpi {
my $self = shift;
my @old = i_ft2_getdpi($self->{id});
if (@_) {
my %hsh = @_;
my $result;
unless ($hsh{xdpi} && $hsh{ydpi}) {
if ($hsh{dpi}) {
$hsh{xdpi} = $hsh{ydpi} = $hsh{dpi};
}
else {
$Imager::ERRSTR = "dpi method requires xdpi and ydpi or just dpi";
return;
}
i_ft2_setdpi($self->{id}, $hsh{xdpi}, $hsh{ydpi}) or return;
}
}
return @old;
}
sub hinting {
my ($self, %opts) = @_;
i_ft2_sethinting($self->{id}, $opts{hinting} || 0);
}
sub _transform {
my $self = shift;
my %hsh = @_;
my $matrix = $hsh{matrix} or return undef;
return i_ft2_settransform($self->{id}, $matrix)
}
sub utf8 {
return 1;
}
# check if the font has the characters in the given string
sub has_chars {
my ($self, %hsh) = @_;
unless (defined $hsh{string} && length $hsh{string}) {
$Imager::ERRSTR = "No string supplied to \$font->has_chars()";
return;
}
return i_ft2_has_chars($self->{id}, $hsh{string},
_first($hsh{'utf8'}, $self->{utf8}, 0));
}
sub face_name {
my ($self) = @_;
i_ft2_face_name($self->{id});
}
sub can_glyph_names {
i_ft2_can_do_glyph_names();
}
sub glyph_names {
my ($self, %input) = @_;
my $string = $input{string};
defined $string
or return Imager->_set_error("no string parameter passed to glyph_names");
my $utf8 = _first($input{utf8}, 0);
my $reliable_only = _first($input{reliable_only}, 1);
my @names = i_ft2_glyph_name($self->{id}, $string, $utf8, $reliable_only);
@names or return Imager->_set_error(Imager->_error_as_msg);
return @names if wantarray;
return pop @names;
}
sub is_mm {
my ($self) = @_;
i_ft2_is_multiple_master($self->{id});
}
sub mm_axes {
my ($self) = @_;
my ($num_axis, $num_design, @axes) =
i_ft2_get_multiple_masters($self->{id})
or return Imager->_set_error(Imager->_error_as_msg);
return @axes;
}
sub set_mm_coords {
my ($self, %opts) = @_;
$opts{coords}
or return Imager->_set_error("Missing coords parameter");
ref($opts{coords}) && $opts{coords} =~ /ARRAY\(0x[\da-f]+\)$/
or return Imager->_set_error("coords parameter must be an ARRAY ref");
i_ft2_set_mm_coords($self->{id}, @{$opts{coords}})
or return Imager->_set_error(Imager->_error_as_msg);
return 1;
}
1;
__END__
=head1 NAME
Imager::Font::FT2 - font support using FreeType 2
=head1 SYNOPSIS
use Imager;
my $img = Imager->new;
my $font = Imager::Font->new(file => "foo.ttf", type => "ft2");
$img->string(... font => $font);
=head1 DESCRIPTION
This provides font support on FreeType 2.
=head1 CAVEATS
Unfortunately, older versions of Imager would install
C<Imager::Font::FreeType2> even if FreeType 2 wasn't available, and if
no font was created would succeed in loading the module. This means
that an existing C<FreeType2.pm> could cause a probe success for
supported font files, so I've renamed it.
=head1 AUTHOR
Tony Cook <tonyc@cpan.org>
=head1 SEE ALSO
Imager, Imager::Font.
=cut
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