--- loncom/homework/imageresponse.pm	2001/02/22 01:13:43	1.3
+++ loncom/homework/imageresponse.pm	2003/11/11 00:39:33	1.42
@@ -1,231 +1,523 @@
 # The LearningOnline Network with CAPA
-# iimage click response style
-
-#FIXME assumes multiple possbile submissions but only one is possible currently
+# image click response style
+#
+# $Id: imageresponse.pm,v 1.42 2003/11/11 00:39:33 albertel Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
+#FIXME LATER assumes multiple possible submissions but only one is possible 
+#currently
 
 package Apache::imageresponse;
 use strict;
+use Image::Magick;
+use Apache::randomlylabel;
+use Apache::Constants qw(:common :http);
 
-sub BEGIN {
-  &Apache::lonxml::register('Apache::imageresponse',('imageresponse'));
+BEGIN {
+    &Apache::lonxml::register('Apache::imageresponse',('imageresponse'));
 }
 
 sub start_imageresponse {
-  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
-  #when in a radiobutton response use these
-  &Apache::lonxml::register('Apache::imageresponse',('foilgroup','foil','text','image','rectangle'));
-  my $id = &Apache::response::start_response($parstack,$safeeval);
-  return '';
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+    my $result;
+    #when in a radiobutton response use these
+    &Apache::lonxml::register('Apache::imageresponse',('foilgroup','foil','text','image','rectangle','conceptgroup'));
+    push (@Apache::lonxml::namespace,'imageresponse');
+    my $id = &Apache::response::start_response($parstack,$safeeval);
+    if ($target eq 'meta') {
+	$result=&Apache::response::meta_package_write('imageresponse');
+    } elsif ($target eq 'analyze') {
+	my $part_id="$Apache::inputtags::part.$id";
+	push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
+    }
+    return $result;
 }
 
 sub end_imageresponse {
-  &Apache::response::end_response;
-  return '';
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+    &Apache::response::end_response;
+    pop @Apache::lonxml::namespace;
+    &Apache::lonxml::deregister('Apache::imageresponse',('foilgroup','foil','text','image','rectangle','conceptgroup'));
+    my $result;
+    if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
+    return $result;
 }
 
-%Apache::response::foilgroup={};
+%Apache::response::foilgroup=();
 sub start_foilgroup {
-  %Apache::response::foilgroup={};
-  return '';
-}
-
-sub setrandomnumber {
-  my $rndseed=&Apache::lonnet::rndseed();
-  $rndseed=unpack("%32i",$rndseed);
-  $rndseed=$rndseed
-    +&Apache::lonnet::numval($Apache::inputtags::part)
-      +&Apache::lonnet::numval($Apache::inputtags::response['-1']);
-  srand($rndseed);
-  return '';
+    %Apache::response::foilgroup=();
+    $Apache::imageresponse::conceptgroup=0;
+    &Apache::response::setrandomnumber();
+    return '';
 }
 
 sub getfoilcounts {
-  my ($parstack,$safeeval)=@_;
-  my $rrargs ='';
-  if ( $#$parstack > 0 ) { $rrargs=$$parstack['-2']; }
-  my $max = &Apache::run::run("{$rrargs;".'return $max}',$safeeval);
-  my $count = $#{ $Apache::response::foilgroup{'names'} };
-  return ($count,$max);
+    my ($parstack,$safeeval)=@_;
+
+    my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
+    # +1 since instructors will count from 1
+    my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
+    if (&Apache::response::showallfoils()) { $max=$count; }
+    return ($count,$max);
 }
 
 sub whichfoils {
-  my ($max)=@_;
-  my @names = @{ $Apache::response::foilgroup{'names'} };
-  my @whichopt =();
-  while ((($#whichopt+1) < $max) && ($#names > -1)) {
-    my $aopt=int rand $#names;
-    &Apache::lonxml::debug("From $#names elms, picking $aopt");
-    $aopt=splice(@names,$aopt,1);
-    &Apache::lonxml::debug("Picked $aopt");
-    push (@whichopt,$aopt);
-  }
-  return @whichopt;
+    my ($max)=@_;
+    if (!defined(@{ $Apache::response::foilgroup{'names'} })) { return; }
+    my @names = @{ $Apache::response::foilgroup{'names'} };
+    my @whichopt =();
+    while ((($#whichopt+1) < $max) && ($#names > -1)) {
+	&Apache::lonxml::debug("Have $#whichopt max is $max");
+	my $aopt;
+	if (&Apache::response::showallfoils()) {
+	    $aopt=0;
+	} else {
+	    $aopt=int(&Math::Random::random_uniform() * ($#names+1));
+	}
+	&Apache::lonxml::debug("From $#names elms, picking $aopt");
+	$aopt=splice(@names,$aopt,1);
+	&Apache::lonxml::debug("Picked $aopt");
+	push (@whichopt,$aopt);
+    }
+    return @whichopt;
+}
+
+sub prep_image {
+    my ($image,$mode,$name)=@_;
+    my $part=$Apache::inputtags::part;
+    my $respid=$Apache::inputtags::response['-1'];
+    my $id=&Apache::loncommon::get_cgi_id();
+    my %x;
+    $x{"cgi.$id.BGIMG"}=$image;
+    my ($x,$y)=split(/:/,$Apache::lonhomework::history{"resource.$part.$respid.submission"});
+    #draws 2 xs on the image at the clicked location
+    #one in white and then one in red on top of the one in white
+    if (defined($x) && defined($y)) {
+	$x{"cgi.$id.LINECOUNT"}=4;
+	my $length = 6;
+	my $width = 1;
+	my $extrawidth = 2;
+	$x{"cgi.$id.LINE0"}=
+	    join(':',(($x-$length),($y-$length),($x+$length),($y+$length),
+		      "FFFFFF",($width+$extrawidth)));
+	$x{"cgi.$id.LINE1"}=
+	    join(':',(($x-$length),($y+$length),($x+$length),($y-$length),
+		      "FFFFFF",($width+$extrawidth)));
+	$x{"cgi.$id.LINE2"}=
+	    join(':',(($x-$length),($y-$length),($x+$length),($y+$length),
+		      "FF0000",($width)));
+	$x{"cgi.$id.LINE3"}=
+	    join(':',(($x-$length),($y+$length),($x+$length),($y-$length),
+		      "FF0000",($width)));
+    }
+    if ($mode eq 'answer') {
+	my $width = 1;
+	my $extrawidth = 2;
+	my @areas = @{ $Apache::response::foilgroup{"$name.area"} };
+	foreach my $area (@areas) {
+	    my ($x1,$y1,$x2,$y2)=
+		($area=~m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/);
+	    my $i=$x{"cgi.$id.BOXCOUNT"}++;
+	    $x{"cgi.$id.BOX$i"}=join(':',($x1,$y1,$x2,$y2,"FFFFFF",
+					  ($width+$extrawidth)));
+	    $i=$x{"cgi.$id.BOXCOUNT"}++;
+	    $x{"cgi.$id.BOX$i"}=join(':',($x1,$y1,$x2,$y2,"00FF00",$width));
+	}
+    }
+    &Apache::lonnet::appenv(%x);
+    return $id;
 }
 
 sub displayfoils {
-  my (@whichopt) = @_;
-  my $result ='';
-  my $name;
-  my $temp=1;
-  foreach $name (@whichopt) {
-    $result.=$Apache::response::foilgroup{"$name.text"}."<br />\n";
-    my $image=$Apache::response::foilgroup{"$name.image"};
-    if ($Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"} =~ /^correct/ ) {
-      $result.="<img src=\"$image\"/> <br />\n";
-    } else {
-      $result.="<input type=\"image\" name=\"HWVAL_$Apache::inputtags::response['-1']:$temp\" src=\"$image\"/> <br />\n";
-    }
-    $temp++;
-  }
-  return $result;
+    my ($target,@whichopt) = @_;
+    my $result ='';
+    my $name;
+    my $temp=1;
+    foreach $name (@whichopt) {
+	$result.=$Apache::response::foilgroup{"$name.text"};
+	&Apache::lonxml::debug("Text is $result");
+	if ($target eq 'tex') {$result.="\\vskip 0 mm \n";} else {$result.="<br />\n";}
+	my $image=$Apache::response::foilgroup{"$name.image"};
+	&Apache::lonxml::debug("image is $image");
+	if ( $target eq 'web' && $image !~ /^http:/ ) {
+	    $image=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$image);
+	    if (&Apache::lonnet::repcopy($image) ne OK) {
+		$image='/home/httpd/html/adm/lonKaputt/lonlogo_broken.gif';
+	    }
+	}
+	&Apache::lonxml::debug("image is $image");
+	if ( &Apache::response::show_answer() ) {
+	    if ($target eq 'tex') {
+		$result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n";
+	    } else {
+		my $token=&prep_image($image,'answer',$name);
+		$result.="<img src=\"/adm/randomlabel.png?token=$token\" /><br />\n";
+	    }
+	} else {
+	    if ($target eq 'tex') {
+		$result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n";
+	    } else {
+		my $id=$Apache::inputtags::response['-1'];
+		my $token=&prep_image($image);
+		my $temp=1;
+		$result.="<input type=\"image\" name=\"HWVAL_$id:$temp\" ".
+		    "src=\"/adm/randomlabel.png?token=$token\" /><br />\n";
+	    }
+	}
+	$temp++;
+    }
+    return $result;
 }
 
 sub gradefoils {
-  my (@whichopt) = @_;
-  my $result='';
-  my $x;
-  my $y;
-  my $result;
-  my $id=$Apache::inputtags::response['-1'];
-  my $temp=1;
-  foreach my $name (@whichopt) {
-    $x=$ENV{"form.HWVAL_$id:$temp.x"};
-    $y=$ENV{"form.HWVAL_$id:$temp.y"};
-    &Apache::lonxml::debug("Got a x of $x and a y of $y for $name");
-    my @areas = @{ $Apache::response::foilgroup{"$name.area"} };
-    my $grade="INCORRECT";
-    foreach my $area (@areas) {
-      &Apache::lonxml::debug("Area is $area for $name");
-      $area =~ m/([a-z]*):/;
-      &Apache::lonxml::debug("Area of type $1");
-      if ($1 eq 'rectangle') {
-	$grade=&grade_rectangle($area,$x,$y);
-      } else {
-	&Apache::lonxml::error("Unknown area style $area");
-      }
-      &Apache::lonxml::debug("Area said $grade");
-      if ($grade eq 'APPROX_ANS') { last; }
-    }
-    &Apache::lonxml::debug("Foil was $grade");
-    if ($grade eq 'INCORRECT') { $result= 'INCORRECT'; }
-    if (($grade eq 'APPROX_ANS') && ($result ne 'APPROX_ANS')) { $result=$grade; }
-    &Apache::lonxml::debug("Question is $result");
-    $temp++;
-  }
-  $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}="$x:$y";
-  $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}=$result;
-  return '';
+    my (@whichopt) = @_;
+    my $x;
+    my $y;
+    my $result;
+    my $id=$Apache::inputtags::response['-1'];
+    my $temp=1;
+    foreach my $name (@whichopt) {
+	$x=$ENV{"form.HWVAL_$id:$temp.x"};
+	$y=$ENV{"form.HWVAL_$id:$temp.y"};
+	&Apache::lonxml::debug("Got a x of $x and a y of $y for $name");
+	if (defined($x) && defined($y) &&
+	    defined(@{ $Apache::response::foilgroup{"$name.area"} })) {
+	    my @areas = @{ $Apache::response::foilgroup{"$name.area"} };
+	    my $grade="INCORRECT";
+	    foreach my $area (@areas) {
+		&Apache::lonxml::debug("Area is $area for $name");
+		$area =~ m/([a-z]*):/;
+		&Apache::lonxml::debug("Area of type $1");
+		if ($1 eq 'rectangle') {
+		    $grade=&grade_rectangle($area,$x,$y);
+		} else {
+		    &Apache::lonxml::error("Unknown area style $area");
+		}
+		&Apache::lonxml::debug("Area said $grade");
+		if ($grade eq 'APPROX_ANS') { last; }
+	    }
+	    &Apache::lonxml::debug("Foil was $grade");
+	    if ($grade eq 'INCORRECT') { $result= 'INCORRECT'; }
+	    if (($grade eq 'APPROX_ANS') && ($result ne 'APPROX_ANS')) { $result=$grade; }
+	    &Apache::lonxml::debug("Question is $result");
+	    $temp++;
+	}
+    }
+    $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}="$x:$y";
+    $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}=$result;
+    return '';
 }
 
 sub end_foilgroup {
-  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
-  my $result='';
-  my @whichopt;
-  if ($target eq 'web' || $target eq 'grade') {
-    &setrandomnumber();
-    my ($count,$max) = &getfoilcounts($parstack,$safeeval);
-    if ($count>$max) { $count=$max }
-    &Apache::lonxml::debug("Count is $count from $max");
-    @whichopt = &whichfoils($max);
-  }
-  if ($target eq 'web') {
-    $result=&displayfoils(@whichopt);
-  }
-  if ($target eq 'grade') {
-    if ( defined $ENV{'form.submitted'}) {
-      &gradefoils(@whichopt);
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+    my $result='';
+    my @whichopt;
+    if ($target eq 'web' || $target eq 'grade' || $target eq 'tex' ||
+	$target eq 'analyze') {
+	my ($count,$max) = &getfoilcounts($parstack,$safeeval);
+	if ($count>$max) { $count=$max }
+	&Apache::lonxml::debug("Count is $count from $max");
+	@whichopt = &whichfoils($max);
+	if ($target eq 'web' || $target eq 'tex') {
+	    $result=&displayfoils($target,@whichopt);
+	} elsif ($target eq 'grade') {
+	    if ( defined $ENV{'form.submitted'}) { &gradefoils(@whichopt); }
+	} elsif ( $target eq 'analyze') {
+	    &Apache::response::analyze_store_foilgroup(\@whichopt,
+						      ['text','image','area']);
+	}
+    } elsif ($target eq 'edit') {
+	$result=&Apache::edit::end_table();
     }
-  }
-  return $result;
+    return $result;
 }
 
 sub start_conceptgroup {
+    $Apache::imageresponse::conceptgroup=1;
+    %Apache::response::conceptgroup=();
+    return '';
 }
 
 sub end_conceptgroup {
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+    $Apache::imageresponse::conceptgroup=0;
+    my $result;
+    if ($target eq 'web' || $target eq 'grade' || $target eq 'tex' ||
+	$target eq 'analyze') {
+	&Apache::response::pick_foil_for_concept($target,
+						 ['area','text','image'],
+						 \%Apache::hint::image,
+						 $parstack,$safeeval);
+    } elsif ($target eq 'edit') {
+	$result=&Apache::edit::end_table();
+    }
+    return $result;
+}
+
+sub insert_foil {
+    return '
+       <foil>
+           <image></image>
+           <text></text>
+           <rectangle></rectangle>
+       </foil>
+';
 }
 
 $Apache::imageresponse::curname='';
 sub start_foil {
-  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
-  if ($target eq 'web' || $target eq 'grade') {
-    my $args ='';
-    if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
-    my $name = &Apache::run::run("{$args;".'return $name}',$safeeval);
-    if ($name eq '') { $name=$Apache::lonxml::curdepth; }
-    push(@{ $Apache::response::foilgroup{'names'} }, $name);
-    $Apache::imageresponse::curname=$name;
-  }
-  return '';
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+    if ($target eq 'web' || $target eq 'grade' || $target eq 'tex' ||
+	$target eq 'analyze') {
+	my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
+	if ($name eq '') { $name=$Apache::lonxml::curdepth; }
+	if ( $Apache::imageresponse::conceptgroup
+	     && !&Apache::response::showallfoils()) {
+	    push(@{ $Apache::response::conceptgroup{'names'} }, $name);
+	} else {
+	    push(@{ $Apache::response::foilgroup{'names'} }, $name);
+	}
+	$Apache::imageresponse::curname=$name;
+    }
+    return '';
 }
 
 sub end_foil {
-  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
-  return '';
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+    my $result;
+    if ($target eq 'edit') {
+	$result=&Apache::edit::end_table();
+    }
+    return $result;
 }
 
 sub start_text {
-  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
-  if ($target eq 'web') { &Apache::lonxml::startredirection; }
-  return '';
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+    my $result='';
+    if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') { 
+	&Apache::lonxml::startredirection; 
+    } elsif ($target eq 'edit') {
+	my $descr=&Apache::lonxml::get_all_text('/text',$parser);
+	$result=&Apache::edit::tag_start($target,$token,'Task Description').
+	    &Apache::edit::editfield($token->[1],$descr,'Text',60,2).
+	    &Apache::edit::end_row();
+    } elsif ($target eq "modified") {
+	$result=$token->[4].&Apache::edit::modifiedfield('/text',$parser);
+    }
+    return $result;
 }
 
 sub end_text {
-  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
-  if ($target eq 'web') {
-    my $name = $Apache::imageresponse::curname;
-    $Apache::response::foilgroup{"$name.text"} = &Apache::lonxml::endredirection;
-  }
-  return '';
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+    my $result;
+    if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
+	my $name = $Apache::imageresponse::curname;
+	if ( $Apache::imageresponse::conceptgroup
+	     && !&Apache::response::showallfoils() ) {
+	    $Apache::response::conceptgroup{"$name.text"} = &Apache::lonxml::endredirection;
+	} else {
+	    $Apache::response::foilgroup{"$name.text"} = &Apache::lonxml::endredirection;
+	}
+    } elsif ($target eq 'edit') {
+	$result=&Apache::edit::end_table();
+    }
+    return $result;
 }
 
 sub start_image {
-  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
-  if ($target eq 'web') { &Apache::lonxml::startredirection; }
-  return '';
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+    my $result='';
+    if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') { 
+	&Apache::lonxml::startredirection; 
+    } elsif ($target eq 'edit') {
+	my $bgimg=&Apache::lonxml::get_all_text('/image',$parser);
+	$Apache::edit::bgimgsrc=$bgimg;
+	$Apache::edit::bgimgsrcdepth=$Apache::lonxml::curdepth;
+
+	$result=&Apache::edit::tag_start($target,$token,'Clickable Image').
+	    &Apache::edit::editline($token->[1],$bgimg,'Image Source File',40);
+	$result.=&Apache::edit::browse(undef,'textnode').' ';
+	$result.=&Apache::edit::search(undef,'textnode').
+	    &Apache::edit::end_row();
+    } elsif ($target eq "modified") {
+	$result=$token->[4].&Apache::edit::modifiedfield('/image',$parser);
+    }
+    return $result;
 }
 
 sub end_image {
-  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
-  if ($target eq 'web') {
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+    my $result;
     my $name = $Apache::imageresponse::curname;
-    my $image = &Apache::lonxml::endredirection;
-    &Apache::lonxml::debug("out is $image");
-    $Apache::response::foilgroup{"$name.image"} = $image;
-  }
-  return '';
+    if ($target eq 'web') {
+	my $image = &Apache::lonxml::endredirection;
+	&Apache::lonxml::debug("original image is $image");
+	if ( $Apache::imageresponse::conceptgroup
+	     && !&Apache::response::showallfoils()) {
+	    $Apache::response::conceptgroup{"$name.image"} = $image;
+	} else {
+	    $Apache::response::foilgroup{"$name.image"} = $image;
+	}
+    } elsif ($target eq 'analyze') {
+	my $image = &Apache::lonxml::endredirection;
+	if ( $Apache::imageresponse::conceptgroup
+	     && !&Apache::response::showallfoils()) {
+	    $Apache::response::conceptgroup{"$name.image"} = $image;
+	} else {
+	    $Apache::response::foilgroup{"$name.image"} = $image;
+	}
+    } elsif ($target eq 'edit') {
+	$result=&Apache::edit::end_table();
+    } elsif ($target eq 'tex') {
+	my $src = &Apache::lonxml::endredirection;
+	$src=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$src);
+	my $width_param = '';
+	my $height_param = '';
+	my $scaling = .3;
+	my $image = Image::Magick->new;
+	my $current_figure = $image->Read($src);
+	$width_param = $image->Get('width') * $scaling;;
+	$height_param = $image->Get('height') * $scaling;;
+	undef $image;
+	my $epssrc = $src;
+	$epssrc =~ s/(\.gif|\.jpg)$/\.eps/i;
+	if (not -e $epssrc) {
+	    my $localfile = $epssrc;
+	    $localfile =~ s/.*(\/res)/$1/;	
+	    my $file;
+	    my $path;	
+	    if ($localfile =~ m!(.*)/([^/]*)$!) {
+		$file = $2;
+		$path = $1.'/'; 
+	    }	
+	    my $signal_eps = 0;
+	    my @content_directory = &Apache::lonnet::dirlist($path);
+	    for (my $iy=0;$iy<=$#content_directory;$iy++) {
+		my @tempo_array = split(/&/,$content_directory[$iy]);
+		$content_directory[$iy] = $tempo_array[0];
+		if ($file eq $tempo_array[0]) {
+		    $signal_eps = 1;
+		    last;
+		}
+	    }
+	    if ($signal_eps) {
+		my $eps_file = &Apache::lonnet::getfile($localfile);
+	    } else {
+		$localfile = $src;
+		$localfile =~ s/.*(\/res)/$1/;	
+		my $as = &Apache::lonnet::getfile($src);		      
+	    }
+	}
+	my $file;
+	my $path;	
+	if ($src =~ m!(.*)/([^/]*)$!) {
+	    $file = $2;
+	    $path = $1.'/'; 
+	}
+	my $newsrc = $src;
+	$newsrc =~ s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
+	$file=~s/(\.gif|\.jpg|\.jpeg)$/\.eps/i;
+	#do we have any specified size of the picture?
+	my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval); 
+	my $TeXheight = &Apache::lonxml::get_param('TeXheight',$parstack,$safeeval); 
+	my $width = &Apache::lonxml::get_param('width',$parstack,$safeeval);
+	if ($TeXwidth ne '') { 
+	    $width_param = $TeXwidth; 
+	} elsif ($TeXheight ne '') { 
+	    $width_param = $TeXheight/$height_param*$width_param;
+	} elsif ($width ne '') {
+	    $width_param = $width*$scaling;      
+	}
+	#where can we find the picture?
+	if (-e $newsrc) {
+	    if ($path) {
+		$Apache::response::foilgroup{"$name.image"} ='\vskip 0 mm \noindent\graphicspath{{'.$path.'}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
+	    }
+	} else {
+	    my $temp_file;
+	    my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.dat";
+	    $temp_file = Apache::File->new('>>'.$filename); 
+	    print $temp_file "$src\n";
+	    $Apache::response::foilgroup{"$name.image"} ='\vskip 0 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
+	}
+    } 
+    return $result;
 }
 
 sub start_rectangle {
-  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
-  if ($target eq 'web' || $target eq 'grade') { &Apache::lonxml::startredirection; }
-  return '';
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+    my $result='';
+    if ($target eq 'web' || $target eq 'grade' || $target eq 'tex' ||
+	$target eq 'analyze') { 
+	&Apache::lonxml::startredirection; 
+    } elsif ($target eq 'edit') {
+	my $coords=&Apache::lonxml::get_all_text('/rectangle',$parser);
+	$result=&Apache::edit::tag_start($target,$token,'Rectangle').
+	    &Apache::edit::editline($token->[1],$coords,'Coordinate Pairs',40).
+	    &Apache::edit::entercoordpair(undef,'textnode').
+	    &Apache::edit::end_row();
+    } elsif ($target eq "modified") {
+	$result=$token->[4].&Apache::edit::modifiedfield('/rectangle',$parser);
+    }
+    return $result;
 }
 
 sub grade_rectangle {
-  my ($spec,$x,$y) = @_;
-  &Apache::lonxml::debug("Spec is $spec");
-  $spec=~m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/;
-  my $x1=$1;
-  my $y1=$2;
-  my $x2=$3;
-  my $y2=$4;
-  &Apache::lonxml::debug("Point $x1,$y1,$x2,$y2");
-  if ($x1 > $x2) { my $temp=$x1;$x1=$x2;$x2=$temp; }
-  if ($y1 > $y2) { my $temp=$y1;$y1=$y2;$y2=$temp; }
-  if ($x => $x1) { if ($x <= $x2) { if ($y => $y1) { if ($y <= $y2) { return 'APPROX_ANS'; } } } }
-  return 'INCORRECT';
+    my ($spec,$x,$y) = @_;
+    &Apache::lonxml::debug("Spec is $spec");
+    $spec=~m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/;
+    my $x1=$1;
+    my $y1=$2;
+    my $x2=$3;
+    my $y2=$4;
+    &Apache::lonxml::debug("Point $x1,$y1,$x2,$y2");
+    if ($x1 > $x2) { my $temp=$x1;$x1=$x2;$x2=$temp; }
+    if ($y1 > $y2) { my $temp=$y1;$y1=$y2;$y2=$temp; }
+    if (($x >= $x1) && ($x <= $x2) && ($y >= $y1) && ($y <= $y2)) {
+	return 'APPROX_ANS';
+    }
+    return 'INCORRECT';
 }
 
 sub end_rectangle {
-  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
-  if ($target eq 'web' || $target eq 'grade') {
-    my $name = $Apache::imageresponse::curname;
-    my $area = &Apache::lonxml::endredirection;
-    &Apache::lonxml::debug("out is $area for $name");
-    push @{ $Apache::response::foilgroup{"$name.area"} },"rectangle:$area";
-  }
-  return '';
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+    my $result;
+    if ($target eq 'web' || $target eq 'grade' || $target eq 'tex' ||
+	$target eq 'analyze') {
+	my $name = $Apache::imageresponse::curname;
+	my $area = &Apache::lonxml::endredirection;
+	&Apache::lonxml::debug("out is $area for $name");
+	if ( $Apache::imageresponse::conceptgroup
+	     && !&Apache::response::showallfoils()) {
+	    push @{ $Apache::response::conceptgroup{"$name.area"} },"rectangle:$area";
+	} else {
+	    push @{ $Apache::response::foilgroup{"$name.area"} },"rectangle:$area";
+	}
+    } elsif ($target eq 'edit') {
+	$result=&Apache::edit::end_table();
+    }
+    return $result;
 }
 1;
 __END__