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#!/usr/local/bin/perl
#
# PROGRAM : hitdisplay.pl
# PURPOSE : Demonstrate Bio::Tk::HitDisplay
# AUTHOR : Keith James kdj@sanger.ac.uk
# CREATED : Nov 1 2000
#
# Requires Bio::Tk::HitDisplay
#
# To use, just pipe Blast output into this script. Try clicking on
# the blue Subject ids with the left button to activate a callback
# or with the right button to show text describing the hit.
#
use strict;
use Text::Wrap qw(wrap $columns);
use Bio::Tools::BPlite;
BEGIN {
print STDERR "This example uses deprecated BioPerl code; feel free to refactor as needed\n";
exit;
eval {
require 'Tk.pm';
require 'Bio/Tk/HitDisplay.pm';
};
if( $@ ) {
print STDERR "Must have bioperl-gui and Tk installed to run this test, see bioperl website www.bioperl.org for instructions on how to installed bioperl-gui modules\n";
exit;
}
}
use Tk;
$columns = 80;
my $report = Bio::Tools::BPlite->new(-fh => \*STDIN);
# Normally the code ref below is in a separate package and I do
# something like:
#
# my $adapter = Bio::PSU::IO::Blast::HitAdapter->new;
#
# while (my $hit = $result->next_hit)
# {
# my $text = " ... ";
# my $callback = sub { ... };
# push(@hits, $adapter->($sbjct, $text, $callback));
# }
#
# It's easy to roll your own for Fasta, or whatever.
my $adapter = sub
{
my ($sbjct, $text, $callback) = @_;
my (@data, $expect, $percent, $length);
my ($q_id, $s_id, $q_len, $s_len);
while (my $hsp = $sbjct->nextHSP)
{
$q_id ||= $hsp->query->seqname;
$s_id ||= $hsp->subject->seqname;
$q_len ||= $hsp->query->seqlength;
$s_len ||= $hsp->subject->seqlength;
my $q_x1 = $hsp->query->start;
my $q_x2 = $hsp->query->end;
my $s_x1 = $hsp->subject->start;
my $s_x2 = $hsp->subject->end;
push(@data, [$q_x1, $q_x2,
$s_x1, $s_x2]);
if (defined $expect)
{
if ($hsp->P < $expect)
{
$expect = $hsp->P;
$percent = $hsp->percent;
$length = $hsp->length;
}
}
else
{
$expect = $hsp->P;
$percent = $hsp->percent;
$length = $hsp->length;
}
}
return { q_id => $q_id,
s_id => $s_id,
expect => $expect,
score => $percent,
overlap => $length,
q_len => $q_len,
s_len => $s_len,
data => \@data,
text => $text,
callback => $callback }
};
my @hits;
while (my $sbjct = $report->nextSbjct)
{
# Make some text to show when the left button is clicked
my $text = wrap("", "", "Blast hit to: ", $sbjct->name, "\n");
# Make a callback to actiavte when the right button is clicked
my $callback = sub { print "Blast hit to ", $sbjct->name, "\n" };
# Convert Subjct, text and callback into hash
push(@hits, $adapter->($sbjct, $text, $callback));
}
# Create the main window and HitDisplay
my $mw = MainWindow->new;
my $hds = $mw->Scrolled('HitDisplay',
-borderwidth => 5,
-scrollbars => 'ose',
-width => 600,
-height => 300,
-background => 'white',
-hitcolours => {
10 => 'pink',
20 => 'purple',
40 => 'yellow',
60 => 'gold',
70 => 'orange',
90 => 'red'
},
-interval => 15,
-hitdata => \@hits);
$hds->pack(-side => 'top', -fill => 'both', -expand => 1);
$hds->waitVisibility;
$hds->configure(-height => 900);
$hds->configure(-scrollregion => [$hds->bbox("all")]);
MainLoop;
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