#!/usr/bin/perl -w 

use strict;

use Tk;

use Tk::Xrm;

use Tk qw(exit); 

my $version="Analyzer 20020429";

my %bases;

my $first_file=undef;

my $last_file=undef;

my $fileno=0;

my @panel_labels;

my @panel_ones;

my @panel_twos;

my @panel_onevars;

my @panel_twovars;

my @panel_keys;

my $panel_count;

# pop the toplevels

my $toplevel=new MainWindow(-class=>'AnalyzerGraph');

my $Xname=$toplevel->Class;

$toplevel->optionAdd("$Xname.geometry",  "800x600",20);

my $geometry=$toplevel->optionGet('geometry','');

$geometry=~/^(\d+)x(\d+)/;

$toplevel->configure(-width=>$1);

$toplevel->configure(-height=>$2);

$toplevel->optionAdd("$Xname.background",  "#4fc627",20);

$toplevel->optionAdd("$Xname*highlightBackground",  "#80c0d3",20);

$toplevel->optionAdd("$Xname.Panel.background",  "#4fc627",20);

$toplevel->optionAdd("$Xname.Panel.foreground",  "#d0d0d0",20);

$toplevel->optionAdd("$Xname.Panel.font",

                     '-*-helvetica-bold-r-*-*-18-*-*-*-*-*-*-*',20);

$toplevel->optionAdd("$Xname*Statuslabel.font",

                     '-*-helvetica-bold-r-*-*-18-*-*-*-*-*-*-*',20);

$toplevel->optionAdd("$Xname*Statuslabel.foreground", "#606060");

$toplevel->optionAdd("$Xname*Status.font",

                     '-*-helvetica-bold-r-*-*-18-*-*-*-*-*-*-*',20);

$toplevel->optionAdd("$Xname*AlertDetail.font",

                     '-*-helvetica-medium-r-*-*-10-*-*-*-*-*-*-*',20);

$toplevel->optionAdd("$Xname*background",  "#d0d0d0",20);

$toplevel->optionAdd("$Xname*foreground",  '#000000',20);

$toplevel->optionAdd("$Xname*Button*background",  "#f0d0b0",20);

$toplevel->optionAdd("$Xname*Button*foreground",  '#000000',20);

$toplevel->optionAdd("$Xname*Button*borderWidth",  '2',20);

$toplevel->optionAdd("$Xname*Button*relief",  'groove',20);

$toplevel->optionAdd("$Xname*Button*padY",  1,20);

#$toplevel->optionAdd("$Xname*Scale*background",  "#f0d0b0",20);

$toplevel->optionAdd("$Xname*Scale*foreground",  '#000000',20);

$toplevel->optionAdd("$Xname*Scale*borderWidth",  '1',20);

#$toplevel->optionAdd("$Xname*Scale*relief",  'groove',20);

$toplevel->optionAdd("$Xname*Scale*padY",  1,20);

$toplevel->optionAdd("$Xname*Checkbutton*background",  "#f0d0b0",20);

$toplevel->optionAdd("$Xname*Checkbutton*foreground",  '#000000',20);

$toplevel->optionAdd("$Xname*Checkbutton*borderWidth",  '2',20);

$toplevel->optionAdd("$Xname*Checkbutton*relief",  'groove',20);

$toplevel->optionAdd("$Xname*activeBackground",  "#ffffff",20);

$toplevel->optionAdd("$Xname*activeForeground",  '#0000a0',20);

$toplevel->optionAdd("$Xname*borderWidth",         0,20);

$toplevel->optionAdd("$Xname*relief",         'flat',20);

$toplevel->optionAdd("$Xname*activeBorderWidth",         1,20);

$toplevel->optionAdd("$Xname*highlightThickness",         0,20);

$toplevel->optionAdd("$Xname*padX",         2,20);

$toplevel->optionAdd("$Xname*padY",         2,20);

$toplevel->optionAdd("$Xname*font",    

                     '-*-helvetica-bold-r-*-*-12-*-*-*-*-*-*-*',20);

$toplevel->optionAdd("$Xname*Entry.font",    

                     '-*-helvetica-medium-r-*-*-12-*-*-*-*-*-*-*',20);

$toplevel->optionAdd("$Xname*Exit.font",    

                     '-*-helvetica-bold-r-*-*-10-*-*-*-*-*-*-*',20);

$toplevel->optionAdd("$Xname*Exit.relief",          'groove',20);

$toplevel->optionAdd("$Xname*Exit.padX",          1,20);

$toplevel->optionAdd("$Xname*Exit.padY",          1,20);

$toplevel->optionAdd("$Xname*Exit.borderWidth",          2,20);

$toplevel->optionAdd("$Xname*Exit*background",  "#a0a0a0",20);

$toplevel->optionAdd("$Xname*Exit*disabledForeground",  "#ffffff",20);

#$toplevel->optionAdd("$Xname*Canvas.background",  "#c0c0c0",20);

$toplevel->optionAdd("$Xname*Entry.background",  "#ffffff",20);

$toplevel->optionAdd("$Xname*Entry.disabledForeground",  "#c0c0c0",20);

$toplevel->optionAdd("$Xname*Entry.relief",  "sunken",20);

$toplevel->optionAdd("$Xname*Entry.borderWidth",  1,20);

$toplevel->optionAdd("$Xname*Field.background",  "#ffffff",20);

$toplevel->optionAdd("$Xname*Field.disabledForeground",  "#c0c0c0",20);

$toplevel->optionAdd("$Xname*Field.relief",  "flat",20);

$toplevel->optionAdd("$Xname*Field.borderWidth",  1,20);

$toplevel->optionAdd("$Xname*Label.disabledForeground",  "#c0c0c0",20);

$toplevel->optionAdd("$Xname*Label.borderWidth",  1,20);

$toplevel->configure(-background=>$toplevel->optionGet("background",""));

#$toplevel->resizable(FALSE,FALSE);

my $panel=new MainWindow(-class=>'AnalyzerPanel');

my $X2name=$panel->Class;

$panel->optionAdd("$X2name.background",  "#353535",20);

$panel->optionAdd("$X2name*highlightBackground",  "#80c0d3",20);

$panel->optionAdd("$X2name.Panel.background",  "#353535",20);

$panel->optionAdd("$X2name.Panel.foreground",  "#4fc627",20);

$panel->optionAdd("$X2name.Panel.font",

                     '-*-helvetica-bold-o-*-*-18-*-*-*-*-*-*-*',20);

$panel->optionAdd("$X2name*Statuslabel.font",

                     '-*-helvetica-bold-r-*-*-18-*-*-*-*-*-*-*',20);

$panel->optionAdd("$X2name*Statuslabel.foreground", "#4fc627",20);

$panel->optionAdd("$X2name*Status.font",

                     '-*-helvetica-bold-r-*-*-18-*-*-*-*-*-*-*',20);

$panel->optionAdd("$X2name*AlertDetail.font",

                     '-*-helvetica-medium-r-*-*-10-*-*-*-*-*-*-*',20);

$panel->optionAdd("$X2name*background",  "#d0d0d0",20);

$panel->optionAdd("$X2name*foreground",  '#000000',20);

$panel->optionAdd("$X2name*Button*background",  "#f0d0b0",20);

$panel->optionAdd("$X2name*Button*foreground",  '#000000',20);

$panel->optionAdd("$X2name*Button*borderWidth",  '2',20);

$panel->optionAdd("$X2name*Button*relief",  'groove',20);

$panel->optionAdd("$X2name*Button*padY",  1,20);

$panel->optionAdd("$X2name*Checkbutton*background",  "#f0d0b0",20);

$panel->optionAdd("$X2name*Checkbutton*foreground",  '#000000',20);

$panel->optionAdd("$X2name*Checkbutton*borderWidth",  '2',20);

#$panel->optionAdd("$X2name*Checkbutton*padX",  '0',20);

#$panel->optionAdd("$X2name*Checkbutton*padY",  '0',20);

#$panel->optionAdd("$X2name*Checkbutton*relief",  'groove',20);

$panel->optionAdd("$X2name*activeBackground",  "#ffffff",20);

$panel->optionAdd("$X2name*activeForeground",  '#0000a0',20);

$panel->optionAdd("$X2name*borderWidth",         0,20);

$panel->optionAdd("$X2name*relief",         'flat',20);

$panel->optionAdd("$X2name*activeBorderWidth",         1,20);

$panel->optionAdd("$X2name*highlightThickness",         0,20);

$panel->optionAdd("$X2name*padX",         2,20);

$panel->optionAdd("$X2name*padY",         2,20);

$panel->optionAdd("$X2name*font",    

                     '-*-helvetica-bold-r-*-*-12-*-*-*-*-*-*-*',20);

$panel->optionAdd("$X2name*Entry.font",    

                     '-*-helvetica-medium-r-*-*-12-*-*-*-*-*-*-*',20);

$panel->optionAdd("$X2name*Exit.font",    

                     '-*-helvetica-bold-r-*-*-10-*-*-*-*-*-*-*',20);

$panel->optionAdd("$X2name*Exit.relief",          'groove',20);

$panel->optionAdd("$X2name*Exit.padX",          1,20);

$panel->optionAdd("$X2name*Exit.padY",          1,20);

$panel->optionAdd("$X2name*Exit.borderWidth",          2,20);

$panel->optionAdd("$X2name*Exit*background",  "#a0a0a0",20);

$panel->optionAdd("$X2name*Exit*disabledForeground",  "#ffffff",20);

$panel->optionAdd("$X2name*Entry.background",  "#ffffff",20);

$panel->optionAdd("$X2name*Entry.disabledForeground",  "#c0c0c0",20);

$panel->optionAdd("$X2name*Entry.relief",  "sunken",20);

$panel->optionAdd("$X2name*Entry.borderWidth",  1,20);

$panel->optionAdd("$X2name*Field.background",  "#ffffff",20);

$panel->optionAdd("$X2name*Field.disabledForeground",  "#c0c0c0",20);

$panel->optionAdd("$X2name*Field.relief",  "flat",20);

$panel->optionAdd("$X2name*Field.borderWidth",  1,20);

$panel->optionAdd("$X2name*Label.disabledForeground",  "#c0c0c0",20);

$panel->optionAdd("$X2name*Label.borderWidth",  1,20);

$panel->configure(-background=>$panel->optionGet("background",""));

#$panel->resizable("FALSE","FALSE");

my $panel_shell=$panel->Label(Name=>"shell",-borderwidth=>1,-relief=>'raised')->

    place(-x=>10,-y=>36,-relwidth=>1.0,-relheight=>1.0,

          -width=>-20,-height=>-46,-anchor=>'nw');

my $panel_quit=$panel_shell->Button(-class=>"Exit",-text=>"quit",-command=>[sub{Shutdown()}])->

    place(-x=>-1,-y=>-1,-relx=>1.0,-rely=>1.0,-anchor=>'se');

$panel->Label(Name=>"logo text",-class=>"Panel",-text=>$version)->

    place(-x=>5,-y=>5,-anchor=>'nw');

my $graph_shell=$toplevel->Label(Name=>"shell",-borderwidth=>1,-relief=>'raised')->

    place(-x=>10,-y=>36,-relwidth=>1.0,-relheight=>1.0,

          -width=>-20,-height=>-46,-anchor=>'nw');

my $graph_status=$toplevel->Label(Name=>"logo text",-class=>"Panel",-text=>"Starting up")->

    place(-x=>5,-y=>5,-anchor=>'nw');

my $panely=5;

my $panel_rescan=$panel_shell->Button(-text=>"rescan",-command=>[sub{scan_directory()}])->

    place(-x=>-5,-relx=>1.,-y=>$panely,-anchor=>'ne');

$panely+=$panel_rescan->reqheight()+6;

my$temp=$graph_shell->Button(-text=>"<<",

		     -command=>[sub{$fileno-=10;$fileno=$first_file if($fileno<$first_file);

				load_graph();}])->

    place(-x=>5,-y=>-5,-rely=>1.,-relwidth=>.2,-width=>-5,-anchor=>'sw');

$graph_shell->Button(-text=>">>",

		     -command=>[sub{$fileno+=10;$fileno=$last_file if($fileno>$last_file);

				load_graph();}])->

    place(-x=>-5,-y=>-5,-relwidth=>.2,-rely=>1.,-width=>-5,-relx=>1.,-anchor=>'se');

$graph_shell->Button(-text=>"<",

		     -command=>[sub{$fileno-=1;$fileno=$first_file if($fileno<$first_file);

				load_graph();}])->

    place(-x=>5,-y=>-5,-relwidth=>.3,-width=>-7,-rely=>1.,-relx=>.2,-anchor=>'sw');

$graph_shell->Button(-text=>">",

		     -command=>[sub{$fileno+=1;$fileno=$last_file if($fileno>$last_file);

				load_graph();}])->

    place(-x=>-5,-y=>-5,-relwidth=>.3,-width=>-7,-rely=>1.,-relx=>.8,-anchor=>'se');

my$graphy=-10-$temp->reqheight();

my$graph_slider=$temp=$graph_shell->Scale(-bigincrement=>1,

				    -resolution=>1,

				    -showvalue=>'TRUE',-variable=>\$fileno,-orient=>'horizontal')->

    place(-x=>5,-y=>$graphy,-relwidth=>1.,-rely=>1.,-width=>-10,-anchor=>'sw');

$graphy-=$temp->reqheight()+5;

my$onecrop;

my$twocrop;

my$oneresize=$temp=$graph_shell->Checkbutton(-text=>"rescale",-variable=>\$onecrop,

				-command=>[sub{draw_graph();}])->

    place(-x=>5,-y=>5,-anchor=>'nw');

my$one=$graph_shell->Canvas()->

    place(-relwidth=>1.,-width=>-10,-relheight=>.5,-height=>($graphy/2)-5-$temp->reqheight(),

				     -x=>5,-y=>5+$temp->reqheight,-anchor=>'nw');

my$tworesize=$temp=$graph_shell->Checkbutton(-text=>"rescale",-variable=>\$twocrop,

				-command=>[sub{draw_graph();}])->

    place(-rely=>1.,-y=>5,-anchor=>'nw',-in=>$one);

my$two=$graph_shell->Canvas()->

    place(-relwidth=>1.,-relheight=>1.,-rely=>1.,-y=>5+$temp->reqheight(),-anchor=>'nw',-in=>$one);

scan_directory();

my%onestate;

my%twostate;

my @data;

$onestate{"canvas"}=$one;

$onestate{"vars"}=\@panel_onevars;

$twostate{"canvas"}=$two;

$twostate{"vars"}=\@panel_twovars;

$graph_slider->configure(-command=>[sub{load_graph()}]);

load_graph();

$toplevel->bind('MainWindow','<Configure>',[sub{$toplevel->update();

						draw_graph()}]);

Tk::MainLoop();

sub load_graph{

    scan_directory()if(!defined($panel_count));

    @data=undef;

    for(my$i=0;$i<$panel_count;$i++){

	my$filename=$panel_keys[$i]."_$fileno.m";

	if(open F, "$filename"){

	    $data[$i]=[(<F>)];

	    close F;

	}

    }

    draw_graph();

}

sub graphhelper{

    my($graph)=@_;

    my$count=0;

    my@colors=("#ff0000","#00df00","#0000ff","#ffff00","#ff00ff","#00ffff","#ffffff",

	       "#9f0000","#007f00","#00009f","#8f8f00","#8f008f","#008f8f","#000000");

    my$w=$graph->{"canvas"};

    my$rescale=0;

    Status("Plotting $fileno");

    $w->delete('foo');

    $w->delete('legend');

    $w->delete('lines');

    # count range 

    for(my$i=0;$i<$panel_count;$i++){

	if($graph->{"vars"}->[$i]){

	    if(defined($data[$i])){

		if(!defined($graph->{"minx"})){

		    $data[$i]->[0]=~m/^\s*(-?[0-9\.]*)[ ,]+(-?[0-9\.]*)/;

		    $graph->{"maxx"}=$1;

		    $graph->{"minx"}=$1;

		    $graph->{"maxy"}=$2;

		    $graph->{"miny"}=$2;

		    $rescale=1;

		}

		for(my$j=0;$j<=$#{$data[$i]};$j++){

		    $data[$i]->[$j]=~m/^\s*(-?[0-9\.]*)[ ,]+(-?[0-9\.]*)/;

		    $rescale=1 if($1>$graph->{"maxx"});

		    $rescale=1 if($1<$graph->{"minx"});

		    $rescale=1 if($2>$graph->{"maxy"});

		    $rescale=1 if($2<$graph->{"miny"});

		    $graph->{"maxx"}=$1 if($1>$graph->{"maxx"});

		    $graph->{"minx"}=$1 if($1<$graph->{"minx"});

		    $graph->{"maxy"}=$2 if($2>$graph->{"maxy"});

		    $graph->{"miny"}=$2 if($2<$graph->{"miny"});

		}

	    }

	    $count++;

	}

    }

    my$width=$w->width();

    my$height=$w->height();

    $rescale=1 if(!defined($graph->{"width"}) || 

		  $width!=$graph->{"width"} || 

		  $height!=$graph->{"height"});

    $graph->{"width"}=$width; 

    $graph->{"height"}=$height; 

    if(defined($graph->{"maxx"})){

	# draw axes, labels

	# look for appropriate axis scales

	if($rescale){

	    $w->delete('ylabel');

	    $w->delete('xlabel');

	    $w->delete('axes');

	    my$yscale=1.;

	    my$xscale=1.;

	    my$iyscale=1.;

	    my$ixscale=1.;

	    while(($graph->{"maxx"}-$graph->{"minx"})*$xscale>15){$xscale*=.1;$ixscale*=10.;}

	    while(($graph->{"maxy"}-$graph->{"miny"})*$yscale>15){$yscale*=.1;$iyscale*=10.;}

	    while(($graph->{"maxx"}-$graph->{"minx"})*$xscale<3){$xscale*=10.;$ixscale*=.1;}

	    while(($graph->{"maxy"}-$graph->{"miny"})*$yscale<3){$yscale*=10.;$iyscale*=.1;}

	    # how tall are the x axis labels?

	    $w->createText(-1,-1,-anchor=>'se',-tags=>['foo'],-text=>"0123456789.");

	    my($x1,$y1,$x2,$y2)=$w->bbox('foo');

	    $w->delete('foo');

	    my$maxlabelheight=$y2-$y1;

	    my$useabley=$height-$maxlabelheight-3;

	    my$pixelpery=$useabley/($graph->{"maxy"}-$graph->{"miny"});

	    # place y axis labels at proper spacing/height

	    my$lasty=-$maxlabelheight/2;

	    my$topyval=int($graph->{"maxy"}*$yscale+1.)*$iyscale;

	    for(my$i=0;;$i++){

		my$yval= $topyval-$i*$iyscale;

		my$y= ($graph->{"maxy"}-$yval)*$pixelpery;

		last if($y>$useabley);

		if($y-$maxlabelheight>=$lasty){

		    $w->createText(0,$y,-anchor=>'e',-tags=>['ylabel'],-text=>"$yval");

		    $lasty=$y;

		}

	    }

	    # get the max ylabel width and place them at proper x

	    ($x1,$y1,$x2,$y2)=$w->bbox('ylabel');

	    my$maxylabelwidth=$x2-$x1;

	    $w->move('ylabel',$maxylabelwidth,0);

	    my$beginx=$maxylabelwidth+3;

	    my$useablex=$width-$beginx;

	    # draw basic axes

	    $w->createLine($beginx,0,$beginx,$useabley,$width,$useabley,

			   -tags=>['axes'],-width=>2);

	    # draw y tix

	    $lasty=-$maxlabelheight/2;

	    for(my$i=0;;$i++){

		my$yval= $topyval-$i*$iyscale;

		my$y= ($graph->{"maxy"}-$yval)*$pixelpery;

		last if($y>$useabley);

		if($yval==0){

		    $w->createLine($beginx,$y,$width,$y,

				   -tags=>['axes'],-width=>1);

		}else{

		    if($y-$maxlabelheight>=$lasty){

			$w->createLine($beginx,$y,$width,$y,

				       -tags=>['axes'],-width=>1,

				       -stipple=>'gray50');

			$lasty=$y;

		    }

		}

	    }

	    # place x axis labels at proper spacing

	    my$topxval=int($graph->{"maxx"}*$xscale+1.)*$ixscale;

	    my$pixelperx=$useablex/($graph->{"maxx"}-$graph->{"minx"});

	    for(my$i=0;;$i++){

		my$xval= $topxval-$i*$ixscale;

		my$x= $width-($graph->{"maxx"}-$xval)*$pixelperx;

		last if($x<$beginx);

		# bounding boxen are hard.  place temp labels.

		$w->createText(-1,-1,-anchor=>'e',-tags=>['foo'],-text=>"$xval");

	    }

	    ($x1,$y1,$x2,$y2)=$w->bbox('foo');

	    my$maxxlabelwidth=$x2-$x1;

	    $w->delete('foo');

	    my$lastx=$width;

	    for(my$i=0;;$i++){

		my$xval= $topxval-$i*$ixscale;

		my$x= $width-($graph->{"maxx"}-$xval)*$pixelperx;

		last if($x-$maxxlabelwidth/2<0 || $x<$beginx);

		if($xval==0 && $x<$width){

		    $w->createLine($x,0,$x,$useabley,-tags=>['axes'],-width=>1);

		}

		if($x+$maxxlabelwidth<=$lastx){

		    $w->createText($x,$height-1,-anchor=>'s',-tags=>['xlabel'],-text=>"$xval");

		    $w->createLine($x,0,$x,$useabley,-tags=>['axes'],-width=>1,-stipple=>"gray50");

		    $lastx=$x;

		}

	    }

	    $graph->{"labelheight"}=$maxlabelheight;

	    $graph->{"xo"}=$beginx;

	    $graph->{"ppx"}=$pixelperx;

	    $graph->{"ppy"}=$pixelpery;

	}

	# plot the files

	$count=0;

	my$legendy=$graph->{"labelheight"}/2;

	for(my$i=0;$i<$panel_count;$i++){

	    if($graph->{"vars"}->[$i]){

		$count++; # count here for legend color selection stability

		if(defined($data[$i])){

		    # place a legend placard;

		    my$color=$colors[($count-1)%($#colors+1)];

		    $w->createText($width,$legendy,-anchor=>'e',-tags=>['legend'],

				   -fill=>$color,-text=>$panel_keys[$i]);

		    $legendy+=$graph->{"labelheight"};

		    # plot the lines

		    my@pairs=map{if(/^\s*(-?[0-9\.]*)[ ,]+(-?[0-9\.]*)/){

			(($1-$graph->{"minx"})*$graph->{"ppx"}+$graph->{"xo"},

			 (-$2+$graph->{"maxy"})*$graph->{"ppy"})}} (@{$data[$i]});

		    $w->createLine((@pairs),-fill=>$color,-tags=>['lines']);

		}

	    }

	}

    }

}    

sub draw_graph{

    if($onecrop){

	$onestate{"minx"}=undef;

	$onestate{"miny"}=undef;

	$onestate{"maxx"}=undef;

	$onestate{"maxy"}=undef;

    }

    if($twocrop){

	$twostate{"minx"}=undef;

	$twostate{"miny"}=undef;

	$twostate{"maxx"}=undef;

	$twostate{"maxy"}=undef;

    }

    for(my$i=0;$i<$panel_count;$i++){

	if($twostate{"vars"}->[$i]){

	    #re-place the canvases

	    $oneresize->place(-x=>5,-y=>5,-anchor=>'nw');

	    $one->place(-relwidth=>1.,-width=>-10,-relheight=>.5,

			 -height=>($graphy/2)-5-$oneresize->reqheight(),

			 -x=>5,-y=>5+$oneresize->reqheight,-anchor=>'nw');

	    $tworesize->place(-rely=>1.,-y=>5,-anchor=>'nw',-in=>$one);

	    $two->place(-relwidth=>1.,-relheight=>1.,-rely=>1.,

			-y=>5+$tworesize->reqheight(),-anchor=>'nw',-in=>$one);

	    graphhelper(\%onestate);

	    graphhelper(\%twostate);

	    return;

	}

    }

    $oneresize->place(-x=>5,-y=>5,-anchor=>'nw');

    $one->place(-relwidth=>1.,-width=>-10,-relheight=>1.,

		 -height=>$graphy-5-$oneresize->reqheight(),

		 -x=>5,-y=>5+$oneresize->reqheight,-anchor=>'nw');

    $tworesize->placeForget();

    $two->placeForget();

    graphhelper(\%onestate);

}

sub depopulate_panel{

    my $win;

    foreach $win (@panel_labels){

	$win->destroy();

    }

    @panel_labels=();

    foreach $win (@panel_ones){

	$win->destroy();

    }

    @panel_ones=();

    foreach $win (@panel_twos){

	$win->destroy();

    }

    @panel_twos=();

    @panel_keys=();

}

sub populate_panel{

    my $localy=$panely;

    my $key;

    my $i=0;

    foreach $key (sort (keys %bases)){

	$panel_keys[$i]=$key;

	if(!defined($panel_onevars[$i])){

	    $panel_onevars[$i]=0;

	    $panel_twovars[$i]=0;

	}

	my $temp=$panel_twos[$i]=$panel_shell->

	    Checkbutton(-variable=>\$panel_twovars[$i],-command=>['main::draw_graph'],-text=>'2')->

	    place(-y=>$localy,-x=>-5,-anchor=>"ne",-relx=>1.);

	my $oney=$temp->reqheight();

	my $onex=$temp->reqwidth()+15;

	$temp=$panel_ones[$i]=$panel_shell->

	    Checkbutton(-variable=>\$panel_onevars[$i],-command=>['main::draw_graph'],-text=>'1')->

	    place(-y=>0,-x=>0,-anchor=>"ne",-in=>$temp,-bordermode=>'outside');

	$oney=$temp->reqheight() if ($oney<$temp->reqheight());

	$onex+=$temp->reqwidth();

	$temp=$panel_labels[$i]=$panel_shell->Label(-text=>$key,-class=>'Field',-justify=>'left')->

	    place(-y=>$localy,-x=>5,-anchor=>"nw",-relwidth=>1.,-width=>-$onex,

		  -bordermode=>'outside');

	$oney=$temp->reqheight() if ($oney<$temp->reqheight());

	$localy+=$oney+2;

	$i++;

    }

    $panel_count=$i;    

    $localy+=$panel_quit->reqheight()+50;

    my $geometry=$panel->geometry();

    $geometry=~/^(\d+)/;

    $panel->configure(-height=>$localy);

    $panel->configure(-width=>$1);

}

sub Shutdown{

  Tk::exit();

}

sub Status{

    my$text=shift @_;

    $graph_status->configure(-text=>"$text");

    $toplevel->update();

}

sub scan_directory{

    %bases=();

    my$count=0;

    $first_file=undef;

    $last_file=undef;

    if(opendir(D,".")){

        my$file;

        while(defined($file=readdir(D))){

	    if($file=~m/^(\S*)_(\d+).m/){

		$bases{"$1"}="0";

		$first_file=$2 if(!defined($first_file) || $2<$first_file);

		$last_file=$2 if(!defined($last_file) || $2>$last_file);

		$count++;

		Status("Reading... $count")if($count%117==0);

	    }

        }	

        closedir(D);

    }

    Status("Done Reading: $count files");

    depopulate_panel();

    populate_panel();

    $fileno=$first_file if($fileno<$first_file);

    $fileno=$last_file if($fileno>$last_file);

    $graph_slider->configure(-from=>$first_file,-to=>$last_file);

}