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Diff for /loncom/homework/imageresponse.pm between versions 1.2 and 1.11

version 1.2, 2001/02/09 03:42:59 version 1.11, 2001/08/06 17:39:37
Line 1 Line 1
 # The LearningOnline Network with CAPA  # The LON-CAPA image response handler
 # iimage click response style  # 
   # Image click response style
   #
   # YEAR=2001
   # 2/7,2/9,2/22,3/1,5/4,5/15,5/31,6/2,6/26 Guy Albertelli
   # 8/6 Scott Harrison
   
   #FIXME assumes multiple possible submissions but only one is possible currently
   
 package Apache::imageresponse;  package Apache::imageresponse;
 use strict;  use strict;
   
   # ======================================================================= BEGIN
 sub BEGIN {  sub BEGIN {
   &Apache::lonxml::register('Apache::imageresponse',('imageresponse'));      &Apache::lonxml::register('Apache::imageresponse',('imageresponse'));
 }  }
   
   # ======================================================== Start image response
 sub start_imageresponse {  sub start_imageresponse {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
   #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',
   my $id = &Apache::response::start_response($parstack,$safeeval);         'text','image',
   return '';         'rectangle',
          'conceptgroup'));
       push (@Apache::lonxml::namespace,'imageresponse');
       my $id = &Apache::response::start_response($parstack,$safeeval);
       return '';
 }  }
   
   # ========================================================== End image response
 sub end_imageresponse {  sub end_imageresponse {
   &Apache::response::end_response;      &Apache::response::end_response;
   return '';      pop @Apache::lonxml::namespace;
       return '';
 }  }
   
 %Apache::response::foilgroup={};  %Apache::response::foilgroup = {};
   # ============================================================ Start foil group
 sub start_foilgroup {  sub start_foilgroup {
   %Apache::response::foilgroup={};      %Apache::response::foilgroup = {};
   return '';      $Apache::imageresponse::conceptgroup = 0;
 }      &Apache::response::setrandomnumber();
       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 '';  
 }  }
   
   # =================================== Get foil counts (returns 2 element array)
 sub getfoilcounts {  sub getfoilcounts {
   my ($parstack,$safeeval)=@_;      my ($parstack,$safeeval) = @_;
   my $rrargs ='';      my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
   if ( $#$parstack > 0 ) { $rrargs=$$parstack['-2']; }      # +1 since instructors will count from 1
   my $max = &Apache::run::run("{$rrargs;".'return $max}',$safeeval);      my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
   my $count = $#{ $Apache::response::foilgroup{'names'} };      return ($count,$max);
   return ($count,$max);  
 }  }
   
   # ============================================== Which foils (returns an array)
 sub whichfoils {  sub whichfoils {
   my ($max)=@_;      my ($max) = @_;
   my @names = @{ $Apache::response::foilgroup{'names'} };      if (!defined(@{ $Apache::response::foilgroup{'names'} })) { return; }
   my @whichopt =();      my @names = @{ $Apache::response::foilgroup{'names'} };
   while ((($#whichopt+1) < $max) && ($#names > -1)) {      my @whichopt =();
     my $aopt=int rand $#names;      while ((($#whichopt+1) < $max) && ($#names > -1)) {
     &Apache::lonxml::debug("From $#names elms, picking $aopt");   &Apache::lonxml::debug("Have $#whichopt max is $max");
     $aopt=splice(@names,$aopt,1);   my $aopt = int(rand($#names+1));
     &Apache::lonxml::debug("Picked $aopt");   &Apache::lonxml::debug("From $#names elms, picking $aopt");
     push (@whichopt,$aopt);   $aopt = splice(@names,$aopt,1);
   }   &Apache::lonxml::debug("Picked $aopt");
   return @whichopt;   push (@whichopt,$aopt);
       }
       return @whichopt;
 }  }
   
   # ======================================= Display foils (returns scalar string)
 sub displayfoils {  sub displayfoils {
   my (@whichopt) = @_;      my (@whichopt) = @_;
   my $result ='';      my $result ='';
   #<input type=image name=timg0 src=/~walt/kap18/picts/ch1map.gif>      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"}."<br />\n";   my $image = $Apache::response::foilgroup{"$name.image"};
     my $image=$Apache::response::foilgroup{"$name.image"};   if ($Apache::lonhomework::history{'resource.'.
     $result.="<input type=\"image\" name=\"HWVAL_$Apache::inputtags::response['-1']:$temp\" src=\"$image\"/> <br />\n";    $Apache::inputtags::part.
     $temp++;    '.solved'} =~ /^correct/) {
   }      $result .= "<img src=\"$image\"/> <br />\n";
   return $result;   } else {
       $result .= "<input type=\"image\" name=\"HWVAL_".
          $Apache::inputtags::response['-1'].
          ":$temp\" src=\"$image\"/> <br />\n";
    }
    $temp++;
       }
       return $result;
 }  }
   
   # ================================================================= Grade foils
   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");
    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 '';
   }
   
   # ======================================= End foil group (return scalar string)
 sub end_foilgroup {  sub end_foilgroup {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
   my $result='';      my $result = '';
   if ($target eq 'web' || $target eq 'grade') {      my @whichopt;
     &setrandomnumber();      if ($target eq 'web' || $target eq 'grade') {
     my ($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 $max");
     my @whichopt = &whichfoils($max);   @whichopt = &whichfoils($max);
   }      }
   if ($target eq 'web') {      if ($target eq 'web') {
     $result=&displayfoils(@whichopt);   $result = &displayfoils(@whichopt);
   }      }
   if ($target eq 'grade') {      if ($target eq 'grade') {
     &gradefoils(@whichopt);   if ( defined $ENV{'form.submitted'}) {
   }      &gradefoils(@whichopt);
   return $result;   }
       }
       return $result;
 }  }
   
   # ========================================================= Start concept group
 sub start_conceptgroup {  sub start_conceptgroup {
       $Apache::imageresponse::conceptgroup = 1;
       %Apache::response::conceptgroup = {};
       return '';
 }  }
   
   # =========================================================== End concept group
 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 $pick = int(rand($#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='';  $Apache::imageresponse::curname = '';
   # ================================================================== Start foil
 sub start_foil {  sub start_foil {
   my ($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;      push(@{ $Apache::response::conceptgroup{'names'} }, $name);
     $Apache::imageresponse::curname=$name;   } else {
   }      push(@{ $Apache::response::foilgroup{'names'} }, $name);
   return '';   }
    $Apache::imageresponse::curname=$name;
       }
       return '';
 }  }
   
   # ==================================================================== End foil
 sub end_foil {  sub end_foil {
   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;      my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
   return '';      return '';
 }  }
   
   # ================================================================== Start text
 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 '';  
 }  }
   
   # ==================================================================== End text
 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' ) {      $Apache::response::conceptgroup{"$name.text"} = 
       $Apache::lonxml::redirection++;                                 &Apache::lonxml::endredirection;
       if ($Apache::lonxml::redirection == 1) {    } else {
  $Apache::lonxml::outputstack='';       $Apache::response::foilgroup{"$name.text"} = 
       }                                 &Apache::lonxml::endredirection;
    }
     }      }
   }      return '';
   return '';  
 }  }
   
   # ================================================================= Start image
 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') { $Apache::lonxml::redirection--; }      if ($target eq 'web') { &Apache::lonxml::startredirection; }
   return '';      return '';
 }  }
   
   # =================================================================== End image
 sub end_image {  sub end_image {
   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.image"} = $Apache::lonxml::outputstack;   my $image = &Apache::lonxml::endredirection;
     if ($target eq 'web' ) {   &Apache::lonxml::debug("out is $image");
       $Apache::lonxml::redirection++;   if ( $Apache::imageresponse::conceptgroup ) {
       if ($Apache::lonxml::redirection == 1) {$Apache::lonxml::outputstack='';}      $Apache::response::conceptgroup{"$name.image"} = $image;
    } else {
       $Apache::response::foilgroup{"$name.image"} = $image;
    }
     }      }
   }      return '';
   return '';  
 }  }
   
   # ============================================================= Start rectangle
 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') { $Apache::lonxml::redirection--; }      if ($target eq 'web' || $target eq 'grade') { 
   return '';   &Apache::lonxml::startredirection;
       }
       return '';
 }  }
   
   # ====================================== Grade rectangle (return scalar string)
   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';
   }
   
   # =============================================================== End rectangle
 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') {      if ($target eq 'web' || $target eq 'grade') {
     my $name = $Apache::imageresponse::curname;   my $name = $Apache::imageresponse::curname;
     push ${ $Apache::response::foilgroup{"$name.area"}},"rectangle:$Apache::lonxml::outputstack";   my $area = &Apache::lonxml::endredirection;
     if ($target eq 'web' ) {   &Apache::lonxml::debug("out is $area for $name");
       $Apache::lonxml::redirection++;   if ( $Apache::imageresponse::conceptgroup ) {
       if ($Apache::lonxml::redirection == 1) {$Apache::lonxml::outputstack='';}      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.1.2  
changed lines
  Added in v.1.11

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