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Diff for /loncom/homework/imageresponse.pm between versions 1.13 and 1.36

version 1.13, 2001/08/13 21:44:24 version 1.36, 2003/09/24 19:20:58
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 # The LearningOnline Network with CAPA  # The LearningOnline Network with CAPA
 # iimage click response style  # image click response style
   #
 #FIXME assumes multiple possbile submissions but only one is possible currently  # $Id$
   #
   # 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/
   #
   # July,August 2003 H. K. Ng
   #
   #FIXME LATER assumes multiple possible submissions but only one is possible 
   #currently
   
 package Apache::imageresponse;  package Apache::imageresponse;
   use Apache::randomlylabel;
 use strict;  use strict;
   use Image::Magick;
   use GD;
   
 sub BEGIN {  BEGIN {
   &Apache::lonxml::register('Apache::imageresponse',('imageresponse'));      &Apache::lonxml::register('Apache::imageresponse',('imageresponse'));
 }  }
   
 sub start_imageresponse {  sub start_imageresponse {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $result;      my $result;
   #when in a radiobutton response use these      #when in a radiobutton response use these
   &Apache::lonxml::register('Apache::imageresponse',('foilgroup','foil','text','image','rectangle','conceptgroup'));      &Apache::lonxml::register('Apache::imageresponse',('foilgroup','foil','text','image','rectangle','conceptgroup'));
   push (@Apache::lonxml::namespace,'imageresponse');      push (@Apache::lonxml::namespace,'imageresponse');
   my $id = &Apache::response::start_response($parstack,$safeeval);      my $id = &Apache::response::start_response($parstack,$safeeval);
   if ($target eq 'meta') {      if ($target eq 'meta') {
     $result=&Apache::response::meta_package_write('imageresponse');   $result=&Apache::response::meta_package_write('imageresponse');
   }      }
   return $result;      return $result;
 }  }
   
 sub end_imageresponse {  sub end_imageresponse {
   &Apache::response::end_response;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   pop @Apache::lonxml::namespace;      &Apache::response::end_response;
   return '';      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 {  sub start_foilgroup {
   %Apache::response::foilgroup={};      %Apache::response::foilgroup=();
   $Apache::imageresponse::conceptgroup=0;      $Apache::imageresponse::conceptgroup=0;
   &Apache::response::setrandomnumber();      &Apache::response::setrandomnumber();
   return '';      return '';
 }  }
   
 sub getfoilcounts {  sub getfoilcounts {
   my ($parstack,$safeeval)=@_;      my ($parstack,$safeeval)=@_;
   
   my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');      my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
   # +1 since instructors will count from 1      # +1 since instructors will count from 1
   my $count = $#{ $Apache::response::foilgroup{'names'} }+1;      my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
   return ($count,$max);      if (&Apache::response::showallfoils()) { $max=$count; }
       return ($count,$max);
 }  }
   
 sub whichfoils {  sub whichfoils {
   my ($max)=@_;      my ($max)=@_;
   if (!defined(@{ $Apache::response::foilgroup{'names'} })) { return; }      if (!defined(@{ $Apache::response::foilgroup{'names'} })) { return; }
   my @names = @{ $Apache::response::foilgroup{'names'} };      my @names = @{ $Apache::response::foilgroup{'names'} };
   my @whichopt =();      my @whichopt =();
   while ((($#whichopt+1) < $max) && ($#names > -1)) {      while ((($#whichopt+1) < $max) && ($#names > -1)) {
     &Apache::lonxml::debug("Have $#whichopt max is $max");   &Apache::lonxml::debug("Have $#whichopt max is $max");
     my $aopt=int(rand($#names+1));   my $aopt;
     &Apache::lonxml::debug("From $#names elms, picking $aopt");   if (&Apache::response::showallfoils()) {
     $aopt=splice(@names,$aopt,1);      $aopt=0;
     &Apache::lonxml::debug("Picked $aopt");   } else {
     push (@whichopt,$aopt);      $aopt=int(&Math::Random::random_uniform() * ($#names+1));
   }   }
   return @whichopt;   &Apache::lonxml::debug("From $#names elms, picking $aopt");
    $aopt=splice(@names,$aopt,1);
    &Apache::lonxml::debug("Picked $aopt");
    push (@whichopt,$aopt);
       }
       return @whichopt;
 }  }
   
 sub displayfoils {  sub displayfoils {
   my (@whichopt) = @_;      my ($target,@whichopt) = @_;
   my $result ='';      my $result ='';
   my $name;      my $name;
   my $temp=1;      my $temp=1;
   foreach $name (@whichopt) {      foreach $name (@whichopt) {
     $result.=$Apache::response::foilgroup{"$name.text"}."<br />\n";   $result.=$Apache::response::foilgroup{"$name.text"};
     my $image=$Apache::response::foilgroup{"$name.image"};   &Apache::lonxml::debug("Text is $result");
     if ($Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"} =~ /^correct/ ) {   if ($target eq 'tex') {$result.="\\vskip 0 mm \n";} else {$result.="<br />\n";}
       $result.="<img src=\"$image\"/> <br />\n";   my $image=$Apache::response::foilgroup{"$name.image"};
     } else {   &Apache::lonxml::debug("image is $image");
       $result.="<input type=\"image\" name=\"HWVAL_$Apache::inputtags::response['-1']:$temp\" src=\"$image\"/> <br />\n";   if ( &Apache::response::show_answer() ) {
     }      if ($target eq 'tex') {
     $temp++;   $result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n";
   }      } else {
   return $result;   $result.="<img src=\"$image\"/> <br />\n";
       }
    } else {
       if ($target eq 'tex') {
    $result.=$Apache::response::foilgroup{"$name.image"}."\\vskip 0 mm \n";
       } else {
    $result.="<input type=\"image\" name=\"HWVAL_$Apache::inputtags::response['-1']:$temp\" src=\"$image\"/> <br />\n";
       }
    }
    $temp++;
       }
       return $result;
 }  }
   
 sub gradefoils {  sub gradefoils {
   my (@whichopt) = @_;      my (@whichopt) = @_;
   my $result='';      my $x;
   my $x;      my $y;
   my $y;      my $result;
   my $result;      my $id=$Apache::inputtags::response['-1'];
   my $id=$Apache::inputtags::response['-1'];      my $temp=1;
   my $temp=1;      foreach my $name (@whichopt) {
   foreach my $name (@whichopt) {   $x=$ENV{"form.HWVAL_$id:$temp.x"};
     $x=$ENV{"form.HWVAL_$id:$temp.x"};   $y=$ENV{"form.HWVAL_$id:$temp.y"};
     $y=$ENV{"form.HWVAL_$id:$temp.y"};   &Apache::lonxml::debug("Got a x of $x and a y of $y for $name");
     &Apache::lonxml::debug("Got a x of $x and a y of $y for $name");   if (defined($x) && defined($y) &&
     if (defined(@{ $Apache::response::foilgroup{"$name.area"} })) {      defined(@{ $Apache::response::foilgroup{"$name.area"} })) {
       my @areas = @{ $Apache::response::foilgroup{"$name.area"} };      my @areas = @{ $Apache::response::foilgroup{"$name.area"} };
       my $grade="INCORRECT";      my $grade="INCORRECT";
       foreach my $area (@areas) {      foreach my $area (@areas) {
  &Apache::lonxml::debug("Area is $area for $name");   &Apache::lonxml::debug("Area is $area for $name");
  $area =~ m/([a-z]*):/;   $area =~ m/([a-z]*):/;
  &Apache::lonxml::debug("Area of type $1");   &Apache::lonxml::debug("Area of type $1");
  if ($1 eq 'rectangle') {   if ($1 eq 'rectangle') {
   $grade=&grade_rectangle($area,$x,$y);      $grade=&grade_rectangle($area,$x,$y);
  } else {   } else {
   &Apache::lonxml::error("Unknown area style $area");      &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::lonxml::debug("Area said $grade");      }
  if ($grade eq 'APPROX_ANS') { last; }      $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}="$x:$y";
       }      $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}=$result;
       &Apache::lonxml::debug("Foil was $grade");      return '';
       if ($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 {  sub end_foilgroup {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $result='';      my $result='';
   my @whichopt;      my @whichopt;
   if ($target eq 'web' || $target eq 'grade') {      if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
     my ($count,$max) = &getfoilcounts($parstack,$safeeval);   my ($count,$max) = &getfoilcounts($parstack,$safeeval);
     if ($count>$max) { $count=$max }   if ($count>$max) { $count=$max }
     &Apache::lonxml::debug("Count is $count from $max");   &Apache::lonxml::debug("Count is $count from $max");
     @whichopt = &whichfoils($max);   @whichopt = &whichfoils($max);
   }   if ($target eq 'web' || $target eq 'tex') {
   if ($target eq 'web') {      $result=&displayfoils($target,@whichopt);
     $result=&displayfoils(@whichopt);   } elsif ($target eq 'grade') {
   }      if ( defined $ENV{'form.submitted'}) { &gradefoils(@whichopt); }
   if ($target eq 'grade') {   } 
     if ( defined $ENV{'form.submitted'}) {      } elsif ($target eq 'edit') {
       &gradefoils(@whichopt);   $result=&Apache::edit::end_table();
     }      }
   }      return $result;
   return $result;  
 }  }
   
 sub start_conceptgroup {  sub start_conceptgroup {
   $Apache::imageresponse::conceptgroup=1;      $Apache::imageresponse::conceptgroup=1;
   %Apache::response::conceptgroup={};      %Apache::response::conceptgroup=();
   return '';      return '';
 }  }
   
 sub end_conceptgroup {  sub end_conceptgroup {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   $Apache::imageresponse::conceptgroup=0;        $Apache::imageresponse::conceptgroup=0;
   if ($target eq 'web' || $target eq 'grade') {      my $result;
     if (defined(@{ $Apache::response::conceptgroup{'names'} })) {      if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
       my @names = @{ $Apache::response::conceptgroup{'names'} };   if (defined(@{ $Apache::response::conceptgroup{'names'} })) {
       my $pick=int(rand($#names+1));      my @names = @{ $Apache::response::conceptgroup{'names'} };
       my $name=$names[$pick];      my $pick=int(&Math::Random::random_uniform() * ($#names+1));
       if (defined(@{ $Apache::response::conceptgroup{"$name.area"} })) {      my $name=$names[$pick];
  push @{ $Apache::response::foilgroup{'names'} }, $name;      if (defined(@{ $Apache::response::conceptgroup{"$name.area"} })) {
  $Apache::response::foilgroup{"$name.text"} = $Apache::response::conceptgroup{"$name.text"};   push @{ $Apache::response::foilgroup{'names'} }, $name;
  $Apache::response::foilgroup{"$name.image"} = $Apache::response::conceptgroup{"$name.image"};   $Apache::response::foilgroup{"$name.text"} = $Apache::response::conceptgroup{"$name.text"};
  push(@{ $Apache::response::foilgroup{"$name.area"} }, @{ $Apache::response::conceptgroup{"$name.area"} });   $Apache::response::foilgroup{"$name.image"} = $Apache::response::conceptgroup{"$name.image"};
  my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);   push(@{ $Apache::response::foilgroup{"$name.area"} }, @{ $Apache::response::conceptgroup{"$name.area"} });
  $Apache::response::foilgroup{"$name.concept"} = $concept;   my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
  &Apache::lonxml::debug("Selecting $name in $concept");   $Apache::response::foilgroup{"$name.concept"} = $concept;
       }   &Apache::lonxml::debug("Selecting $name in $concept");
       }
    }
       } elsif ($target eq 'edit') {
    $result=&Apache::edit::end_table();
     }      }
   }      return $result;
   return '';  }
   
   sub insert_foil {
       return '
          <foil>
              <image></image>
              <text></text>
              <rectangle></rectangle>
          </foil>
   ';
 }  }
   
 $Apache::imageresponse::curname='';  $Apache::imageresponse::curname='';
 sub start_foil {  sub start_foil {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   if ($target eq 'web' || $target eq 'grade') {      if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
     my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);   my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
     if ($name eq '') { $name=$Apache::lonxml::curdepth; }   if ($name eq '') { $name=$Apache::lonxml::curdepth; }
     if ( $Apache::imageresponse::conceptgroup ) {   if ( $Apache::imageresponse::conceptgroup
       push(@{ $Apache::response::conceptgroup{'names'} }, $name);       && !&Apache::response::showallfoils()) {
     } else {      push(@{ $Apache::response::conceptgroup{'names'} }, $name);
       push(@{ $Apache::response::foilgroup{'names'} }, $name);   } else {
     }      push(@{ $Apache::response::foilgroup{'names'} }, $name);
     $Apache::imageresponse::curname=$name;   }
   }   $Apache::imageresponse::curname=$name;
   return '';      }
       return '';
 }  }
   
 sub end_foil {  sub end_foil {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   return '';      my $result;
       if ($target eq 'edit') {
    $result=&Apache::edit::end_table();
       }
       return $result;
 }  }
   
 sub start_text {  sub start_text {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   if ($target eq 'web') { &Apache::lonxml::startredirection; }      my $result='';
   return '';      if ($target eq 'web' || $target eq 'tex') { 
    &Apache::lonxml::startredirection; 
       } elsif ($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") {
    my $descr=&Apache::lonxml::get_all_text('/text',$parser);
    $result=$token->[4].&Apache::edit::modifiedfield($token);
    &Apache::lonxml::debug($result);
       }
       return $result;
 }  }
   
 sub end_text {  sub end_text {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   if ($target eq 'web') {      my $result;
     my $name = $Apache::imageresponse::curname;      if ($target eq 'web' || $target eq 'tex') {
     if ( $Apache::imageresponse::conceptgroup ) {   my $name = $Apache::imageresponse::curname;
       $Apache::response::conceptgroup{"$name.text"} = &Apache::lonxml::endredirection;   if ( $Apache::imageresponse::conceptgroup
     } else {       && !&Apache::response::showallfoils() ) {
       $Apache::response::foilgroup{"$name.text"} = &Apache::lonxml::endredirection;      $Apache::response::conceptgroup{"$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;
   return '';  
 }  }
   
 sub start_image {  sub start_image {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   if ($target eq 'web') { &Apache::lonxml::startredirection; }      my $result='';
   return '';      if ($target eq 'web' || $target eq 'tex') { 
    &Apache::lonxml::startredirection; 
       } elsif ($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") {
    my $bgimg=&Apache::lonxml::get_all_text('/image',$parser);
    $result=$token->[4].&Apache::edit::modifiedfield($token);
    &Apache::lonxml::debug($result);
       }
       return $result;
 }  }
   
 sub end_image {  sub end_image {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   if ($target eq 'web') {      my $result;
     my $name = $Apache::imageresponse::curname;      my $name = $Apache::imageresponse::curname;
     my $image = &Apache::lonxml::endredirection;      if ($target eq 'web') {
     &Apache::lonxml::debug("out is $image");   my $image = &Apache::lonxml::endredirection;
     if ( $Apache::imageresponse::conceptgroup ) {   &Apache::lonxml::debug("original image is $image");
       $Apache::response::conceptgroup{"$name.image"} = $image;   my $id=$Apache::inputtags::response['-1'];
     } else {   my $temp=1;
       $Apache::response::foilgroup{"$name.image"} = $image;   my $x=$ENV{"form.HWVAL_$id:$temp.x"};
     }   my $y=$ENV{"form.HWVAL_$id:$temp.y"};
   }   if (defined ($x) && defined ($y)) {
   return '';      &Apache::lonxml::debug("x and y defined as $x,$y");
       my $currentImage = &Apache::randomlylabel::get_image('/home/httpd/html'.$image,1);
       if (! defined($currentImage)) {
    &Apache::lonnet::logthis('Unable to create image object for '.$image);
    return '';
       }
       my $red;
       if (!($red = $currentImage->colorResolve(255,0,0))) {
    $red = $currentImage->colorClosestHWB(255,0,0);
       }
       my $length = 6;
       $currentImage->line($x-$length,$y-$length,$x+$length,$y+$length,$red);
       $currentImage->line($x-$length,$y+$length,$x+$length,$y-$length,$red);
   
       my ($nameWOext) = ($image =~ /^.*\/(.*)\..*$/);
       &Apache::lonxml::debug("graph name $nameWOext");
       my $webImageName = "/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_".
    $nameWOext.'.png'; #needs to be more random or specific
       my $newImageName = '/home/httpd'.$webImageName;
       
       my $imgfh = Apache::File->new('>'.$newImageName); 
       print $imgfh $currentImage->png;
       $image = $webImageName;
    }
    &Apache::lonxml::debug("out 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 '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 {  sub start_rectangle {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   if ($target eq 'web' || $target eq 'grade') { &Apache::lonxml::startredirection; }      my $result='';
   return '';      if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') { 
    &Apache::lonxml::startredirection; 
       } elsif ($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") {
    my $coords=&Apache::lonxml::get_all_text('/rectangle',$parser);
    $result=$token->[4].&Apache::edit::modifiedfield($token);
    &Apache::lonxml::debug($result);
       }
       return $result;
 }  }
   
 sub grade_rectangle {  sub grade_rectangle {
   my ($spec,$x,$y) = @_;      my ($spec,$x,$y) = @_;
   &Apache::lonxml::debug("Spec is $spec");      &Apache::lonxml::debug("Spec is $spec");
   $spec=~m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/;      $spec=~m/rectangle:\(([0-9]+),([0-9]+)\)\-\(([0-9]+),([0-9]+)\)/;
   my $x1=$1;      my $x1=$1;
   my $y1=$2;      my $y1=$2;
   my $x2=$3;      my $x2=$3;
   my $y2=$4;      my $y2=$4;
   &Apache::lonxml::debug("Point $x1,$y1,$x2,$y2");      &Apache::lonxml::debug("Point $x1,$y1,$x2,$y2");
   if ($x1 > $x2) { my $temp=$x1;$x1=$x2;$x2=$temp; }      if ($x1 > $x2) { my $temp=$x1;$x1=$x2;$x2=$temp; }
   if ($y1 > $y2) { my $temp=$y1;$y1=$y2;$y2=$temp; }      if ($y1 > $y2) { my $temp=$y1;$y1=$y2;$y2=$temp; }
   if ($x => $x1) { if ($x <= $x2) { if ($y => $y1) { if ($y <= $y2) { return 'APPROX_ANS'; } } } }      if (($x >= $x1) && ($x <= $x2) && ($y >= $y1) && ($y <= $y2)) {
   return 'INCORRECT';   return 'APPROX_ANS';
       }
       return 'INCORRECT';
 }  }
   
 sub end_rectangle {  sub end_rectangle {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   if ($target eq 'web' || $target eq 'grade') {      my $result;
     my $name = $Apache::imageresponse::curname;      if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
     my $area = &Apache::lonxml::endredirection;   my $name = $Apache::imageresponse::curname;
     &Apache::lonxml::debug("out is $area for $name");   my $area = &Apache::lonxml::endredirection;
     if ( $Apache::imageresponse::conceptgroup ) {   &Apache::lonxml::debug("out is $area for $name");
       push @{ $Apache::response::conceptgroup{"$name.area"} },"rectangle:$area";   if ( $Apache::imageresponse::conceptgroup
     } else {       && !&Apache::response::showallfoils()) {
       push @{ $Apache::response::foilgroup{"$name.area"} },"rectangle:$area";      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;
   return '';  
 }  }
 1;  1;
 __END__  __END__
Removed from v.1.13  
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  Added in v.1.36

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