package Bio::Graphics::Glyph::three_letters;
# DAS-compatible package to use for drawing a line of groups of three letters
# Non object-oriented utilities used here-and-there in Bio::Graphics modules
=head1 NAME
Bio::Graphics::Glyph::three_letters - DAS-compatible package to use for drawing a line of groups of three letters
=cut
use strict;
use base qw(Bio::Graphics::Glyph::repeating_shape);
sub pad_top {
my $self = shift;
my $top = $self->SUPER::pad_top;
my $extra = 0.2 * $self->font->height;
return $top + $extra;
}
sub default_interval
{
return 20;
}
sub default_text
{
return "CAG";
}
sub draw_repeating_shape
{
my ($self, $gd, $x1, $y1, $x2, $y2, $fg) = @_;
my $text = defined $self->option('text') ? $self->option('text') : $self->default_text();
while (length $text < 3)
{
$text .= " ";
}
$text = substr($text,0,3);
my @letters = split //, $text;
my $oneThird = ($x2-$x1) / 3;
my $secondLetterX = $x1 + $oneThird;
my $thirdLetterX = $x1 + 2*$oneThird;
my $font = $self->option('labelfont') || $self->font;
$gd->string($font, $x1, $y2-$font->height, $letters[0], $self->fontcolor);
$gd->string($font, $secondLetterX, $y2-1.7*$font->height, $letters[1], $self->fontcolor);
$gd->string($font, $thirdLetterX, $y2-$font->height, $letters[2], $self->fontcolor);
}
1;
__END__
=head1 SYNOPSIS
See L<Bio::Graphics::Panel> and L<Bio::Graphics::Glyph>.
=head1 DESCRIPTION
This glyph draws groups of three letters separated by horizontal lines.
=head2 OPTIONS
In addition to the common options, the following glyph-specific
options are recognized:
Option Description Default
------ ----------- -------
-text The three letters to show "CAG"
-width Width of one letter group 20
-interval Interval between 10
letter groups
=head1 BUGS
Please report them.
=head1 SEE ALSO
L<Bio::Graphics::Panel>,
L<Bio::Graphics::Glyph>,
L<Bio::Graphics::Glyph::arrow>,
L<Bio::Graphics::Glyph::cds>,
L<Bio::Graphics::Glyph::crossbox>,
L<Bio::Graphics::Glyph::diamond>,
L<Bio::Graphics::Glyph::dna>,
L<Bio::Graphics::Glyph::dot>,
L<Bio::Graphics::Glyph::ellipse>,
L<Bio::Graphics::Glyph::extending_arrow>,
L<Bio::Graphics::Glyph::generic>,
L<Bio::Graphics::Glyph::graded_segments>,
L<Bio::Graphics::Glyph::heterogeneous_segments>,
L<Bio::Graphics::Glyph::line>,
L<Bio::Graphics::Glyph::pinsertion>,
L<Bio::Graphics::Glyph::primers>,
L<Bio::Graphics::Glyph::rndrect>,
L<Bio::Graphics::Glyph::segments>,
L<Bio::Graphics::Glyph::ruler_arrow>,
L<Bio::Graphics::Glyph::toomany>,
L<Bio::Graphics::Glyph::transcript>,
L<Bio::Graphics::Glyph::transcript2>,
L<Bio::Graphics::Glyph::translation>,
L<Bio::Graphics::Glyph::triangle>,
L<Bio::DB::GFF>,
L<Bio::SeqI>,
L<Bio::SeqFeatureI>,
L<Bio::Das>,
L<GD>
=head1 AUTHOR
Vsevolod (Simon) Ilyushchenko E<lt>simonf@cshl.eduE<gt>.
Copyright (c) 2004 Cold Spring Harbor Laboratory
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself. See DISCLAIMER.txt for
disclaimers of warranty.
=cut