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Diff for /loncom/homework/imageresponse.pm between versions 1.1 and 1.23

version 1.1, 2001/02/07 00:29:59 version 1.23, 2003/01/16 02:55:05
Line 1 Line 1
 # The LearningOnline Network with CAPA  # The LearningOnline Network with CAPA
 # iimage click response style  # image click response style
   #
   # $Id$
   #
   # 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/
   #
   
   #FIXME assumes multiple possbile submissions but only one is possible currently
   
 package Apache::imageresponse;  package Apache::imageresponse;
 use strict;  use strict;
   use Image::Magick;
   
 sub BEGIN {  BEGIN {
   &Apache::lonxml::register('Apache::imageresponse',('imageresponse'));    &Apache::lonxml::register('Apache::imageresponse',('imageresponse'));
 }  }
   
 sub start_imageresponse {  sub start_imageresponse {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     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'));    &Apache::lonxml::register('Apache::imageresponse',('foilgroup','foil','text','image','rectangle','conceptgroup'));
     push (@Apache::lonxml::namespace,'imageresponse');
   my $id = &Apache::response::start_response($parstack,$safeeval);    my $id = &Apache::response::start_response($parstack,$safeeval);
   return '';    if ($target eq 'meta') {
       $result=&Apache::response::meta_package_write('imageresponse');
     }
     return $result;
 }  }
   
 sub end_imageresponse {  sub end_imageresponse {
   &Apache::response::end_response;    &Apache::response::end_response;
     pop @Apache::lonxml::namespace;
     &Apache::lonxml::deregister('Apache::imageresponse',('foilgroup','foil','text','image','rectangle','conceptgroup'));
   return '';    return '';
 }  }
   
 %Apache::response::foilgroup={};  %Apache::response::foilgroup=();
 sub start_foilgroup {  sub start_foilgroup {
   %Apache::response::foilgroup={};    %Apache::response::foilgroup=();
     $Apache::imageresponse::conceptgroup=0;
     &Apache::response::setrandomnumber();
   return '';    return '';
 }  }
   
 sub setrandomnumber {  sub getfoilcounts {
   my $rndseed=&Apache::lonnet::rndseed();    my ($parstack,$safeeval)=@_;
   $rndseed=unpack("%32i",$rndseed);  
   $rndseed=$rndseed    my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
     +&Apache::lonnet::numval($Apache::inputtags::part)    # +1 since instructors will count from 1
       +&Apache::lonnet::numval($Apache::inputtags::response['-1']);    my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
   srand($rndseed);    if (&Apache::response::showallfoils()) { $max=$count; }
     return ($count,$max);
   }
   
   sub whichfoils {
     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 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;
   }
   
   sub gradefoils {
     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(@{ $Apache::response::foilgroup{"$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 '';    return '';
 }  }
   
 sub end_foilgroup {  sub end_foilgroup {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       my $result='';
     my @whichopt;
     if ($target eq 'web' || $target eq 'grade') {
       my ($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);
       }
     }
     return $result;
 }  }
   
 sub start_conceptgroup {  sub start_conceptgroup {
     $Apache::imageresponse::conceptgroup=1;
     %Apache::response::conceptgroup=();
     return '';
 }  }
   
 sub end_conceptgroup {  sub end_conceptgroup {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     $Apache::imageresponse::conceptgroup=0;  
     if ($target eq 'web' || $target eq 'grade') {
       if (defined(@{ $Apache::response::conceptgroup{'names'} })) {
         my @names = @{ $Apache::response::conceptgroup{'names'} };
         my $pick=int(&Math::Random::random_uniform() * ($#names+1));
         my $name=$names[$pick];
         if (defined(@{ $Apache::response::conceptgroup{"$name.area"} })) {
    push @{ $Apache::response::foilgroup{'names'} }, $name;
    $Apache::response::foilgroup{"$name.text"} = $Apache::response::conceptgroup{"$name.text"};
    $Apache::response::foilgroup{"$name.image"} = $Apache::response::conceptgroup{"$name.image"};
    push(@{ $Apache::response::foilgroup{"$name.area"} }, @{ $Apache::response::conceptgroup{"$name.area"} });
    my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
    $Apache::response::foilgroup{"$name.concept"} = $concept;
    &Apache::lonxml::debug("Selecting $name in $concept");
         }
       }
     }
     return '';
 }  }
   
 $Apache::imageresponse::curname='';  $Apache::imageresponse::curname='';
 sub start_foil {  sub start_foil {
   my ($target,$token,$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') {
     my $args ='';      my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
     if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }      if ($name eq '') { $name=$Apache::lonxml::curdepth; }
     my $name = &Apache::run::run("{$args;".'return $name}',$safeeval);      if ( $Apache::imageresponse::conceptgroup
     push @{ $Apache::response::foilgroup{'names'} }, $name;   && !&Apache::response::showallfoils()) {
         push(@{ $Apache::response::conceptgroup{'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,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   return '';    return '';
 }  }
   
 sub start_text {  sub start_text {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   if ($target eq 'web') {     if ($target eq 'web') { &Apache::lonxml::startredirection; }
     $Apache::lonxml::redirection--;   
   }  
   return '';    return '';
 }  }
   
 sub end_text {  sub end_text {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   if ($target eq 'web') {    if ($target eq 'web') {
     my $name = $Apache::imageresponse::curname;      my $name = $Apache::imageresponse::curname;
     $Apache::response::foilgroup{"$name.text"} = $Apache::lonxml::outputstack;      if ( $Apache::imageresponse::conceptgroup
     if ($target eq 'web' ) {         && !&Apache::response::showallfoils() ) {
       $Apache::lonxml::redirection++;        $Apache::response::conceptgroup{"$name.text"} = &Apache::lonxml::endredirection;
       if ($Apache::lonxml::redirection == 1) {       } else {
  $Apache::lonxml::outputstack='';         $Apache::response::foilgroup{"$name.text"} = &Apache::lonxml::endredirection;
       }  
     }      }
   }    }
   return '';    return '';
 }  }
   
 sub start_image {  sub start_image {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
       if ($target eq 'web' || $target eq 'tex') { &Apache::lonxml::startredirection; }
     return '';
 }  }
   
 sub end_image {  sub end_image {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;            
     my $currentstring = '';
     if ($target eq 'web') {
       my $name = $Apache::imageresponse::curname;
       my $image = &Apache::lonxml::endredirection;
       &Apache::lonxml::debug("out 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 '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;
       $newsrc =~ s/(\.gif|\.jpg)$/\.eps/i;
       $file=~s/(\.gif|\.jpg)$/\.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) {
       $currentstring .= '\vskip 0 mm \noindent\graphicspath{{'.$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";
    $currentstring .= '\vskip 0 mm \graphicspath{{/home/httpd/prtspool/}}\includegraphics[width='.$width_param.' mm]{'.$file.'} ';
       }
    } 
     return $currentstring;
 }  }
   
 sub start_rectangle {  sub start_rectangle {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
     if ($target eq 'web' || $target eq 'grade') { &Apache::lonxml::startredirection; }
     return '';
   }
   
   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 >= $x1) && ($x <= $x2) && ($y >= $y1) && ($y <= $y2)) {
       return 'APPROX_ANS';
     }
     return 'INCORRECT';
 }  }
   
 sub end_rectangle {  sub end_rectangle {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;    my ($target,$token,$tagstack,$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");
       if ( $Apache::imageresponse::conceptgroup
    && !&Apache::response::showallfoils()) {
         push @{ $Apache::response::conceptgroup{"$name.area"} },"rectangle:$area";
       } else {
         push @{ $Apache::response::foilgroup{"$name.area"} },"rectangle:$area";
       }
     }
     return '';
 }  }
 1;  1;
 __END__  __END__
Removed from v.1.1  
changed lines
  Added in v.1.23

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