File:  [LON-CAPA] / loncom / homework / matchresponse.pm
Revision 1.81.2.1: download - view: text, annotated - select for diffs
Tue Nov 8 01:48:51 2011 UTC (12 years, 6 months ago) by raeburn
Branches: version_2_10_X
CVS tags: version_2_10_1, loncapaMITrelate_1
Diff to branchpoint 1.81: preferred, unified
- Backport 1.84.

    1: # The LearningOnline Network with CAPA
    2: # Full matching style response
    3: #
    4: # $Id: matchresponse.pm,v 1.81.2.1 2011/11/08 01:48:51 raeburn Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: 
   29: package Apache::matchresponse;
   30: use strict;
   31: use HTML::Entities();
   32: use Math::Random();
   33: use Apache::optionresponse();
   34: use Apache::lonlocal;
   35: use Apache::lonnet;
   36: use Apache::lonxml;
   37: 
   38: BEGIN {
   39:     &Apache::lonxml::register('Apache::matchresponse',('matchresponse'));
   40: }
   41: 
   42: sub start_matchresponse {
   43:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   44:     my $result;
   45:     #when in a matchresponse use these
   46:     &Apache::lonxml::register('Apache::matchresponse',
   47: 			      ('foilgroup','foil','conceptgroup','item',
   48: 			       'itemgroup'));
   49:     push (@Apache::lonxml::namespace,'matchresponse');
   50:     my $id = &Apache::response::start_response($parstack,$safeeval);
   51:     %Apache::hint::match=();
   52:     undef(%Apache::response::foilnames);
   53:     if ($target eq 'meta') {
   54: 	$result=&Apache::response::meta_package_write('matchresponse');
   55:     } elsif ($target eq 'edit' ) {
   56: 	$result.=&Apache::edit::start_table($token).
   57: 	    '<tr><td>'.&Apache::lonxml::description($token).'</td>'
   58:            .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
   59: 	   .&Apache::edit::deletelist($target,$token)
   60:            .'</span></td>'
   61:            .'<td>&nbsp;'.&Apache::edit::end_row()
   62: 	   .&Apache::edit::start_spanning_row();
   63: 	
   64: 	$result.=
   65: 	    &Apache::edit::text_arg('Max Number Of Shown Foils:','max',$token,'4').
   66: 	    &Apache::edit::select_arg('Randomize Foil Order:','randomize',
   67: 				      ['yes','no'],$token).
   68: 	    &Apache::edit::end_row().&Apache::edit::start_spanning_row()."\n";
   69:     } elsif ($target eq 'modified') {
   70: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
   71: 						     $safeeval,'max',
   72: 						     'randomize');
   73: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
   74:     } elsif ($target eq 'analyze') {
   75: 	my $part_id="$Apache::inputtags::part.$id";
   76:         $Apache::lonhomework::analyze{"$part_id.type"} = 'matchresponse';
   77: 	push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
   78: 	push (@{ $Apache::lonhomework::analyze{"$part_id.bubble_lines"} },
   79: 	      1);
   80:     }
   81:     return $result;
   82: }
   83: 
   84: sub end_matchresponse {
   85:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   86:     my $result;
   87:     if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
   88:     &Apache::response::end_response;
   89:     pop @Apache::lonxml::namespace;
   90:     &Apache::lonxml::deregister('Apache::matchresponse',
   91: 				('foilgroup','foil','conceptgroup'));
   92:     undef(%Apache::response::foilnames);
   93:     return $result;
   94: }
   95: 
   96: %Apache::response::itemgroup=();
   97: sub start_itemgroup {
   98:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   99:     my $result;
  100:     %Apache::response::itemgroup=();
  101:     %Apache::matchresponse::itemtable=();
  102: 
  103:     if ($target eq 'edit') {
  104: 	$result=&Apache::edit::tag_start($target,$token);
  105: 	$result.=&Apache::edit::select_arg('Randomize Order:','randomize',
  106: 					   ['yes','no'],$token).'&nbsp;'x 3;
  107: 	$result.=&Apache::edit::select_arg('Items Display Location:',
  108: 					   'location',
  109: 					   ['top','bottom','left','right'],
  110: 					   $token).'&nbsp;'x 3;
  111: 	$result.=&Apache::edit::select_arg('Items Display Direction:',
  112: 					   'direction',
  113: 					   ['vertical','horizontal'],
  114: 					   $token);
  115: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
  116:     } elsif ($target eq 'modified') {
  117: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
  118: 						     $safeeval,'randomize',
  119: 						     'location','direction');
  120: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
  121:     } elsif ($target eq 'web' or $target eq 'tex') {
  122: 	$Apache::matchresponse::itemtable{'location'}=
  123: 	    &Apache::lonxml::get_param('location',$parstack,$safeeval);
  124: 	$Apache::matchresponse::TeXitemgroupwidth=&Apache::lonxml::get_param('TeXitemgroupwidth',$parstack,$safeeval,undef,0);
  125:     }
  126:     return $result;
  127: }
  128: 
  129: sub end_itemgroup {
  130:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  131:     my $result;
  132: 
  133:     if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
  134:     if (ref($Apache::response::itemgroup{'names'}) eq 'ARRAY') {
  135:         if(!@{ $Apache::response::itemgroup{'names'} }) { return; }
  136:     } else {
  137:         return;
  138:     }
  139:     my @names=@{ $Apache::response::itemgroup{'names'} };
  140:     my $randomize =&Apache::lonxml::get_param('randomize',$parstack,$safeeval);
  141:     if ($randomize ne 'no' ) {
  142: 	@names=&Apache::response::whichorder($#names+1,$randomize,0,
  143: 					 \%Apache::response::itemgroup);
  144:     }
  145:     if ($target eq 'analyze') {
  146: 	my $partid="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
  147: 	push (@{ $Apache::lonhomework::analyze{"$partid.items"} }, @names);
  148:     }
  149:     my %letter_name_map;
  150:     my %name_letter_map;
  151:     my @alphabet=('A'..'Z');
  152:     my $i=0;
  153:     foreach my $name (@names) {
  154: 	$letter_name_map{$alphabet[$i]}=$name;
  155: 	$name_letter_map{$name}=$alphabet[$i];
  156: 	$i++;
  157:     }
  158:     $Apache::response::itemgroup{'letter_name_map'}=\%letter_name_map;
  159:     $Apache::response::itemgroup{'name_letter_map'}=\%name_letter_map;
  160:     my $direction=&Apache::lonxml::get_param('direction',$parstack,$safeeval);
  161:     if ($target eq 'web') {
  162: 	
  163: 	my $table='<br /><table>'; # extra space to match what latex does.
  164: 	my $i=0;
  165: 	if ($direction eq 'horizontal') { $table .='<tr>';}
  166: 	foreach my $name (@names) {
  167: 	    if ($direction ne 'horizontal') { $table.='<tr>'; }
  168: 	    $table.='<td>'.$alphabet[$i].'</td><td>'.
  169: 		$Apache::response::itemgroup{$name.'.text'}.'</td>';
  170: 	    if ($direction ne 'horizontal') { $table.='</tr>'; }
  171: 	    $i++;
  172: 	}
  173: 	if ($direction eq 'horizontal') { $table .='</tr>';}
  174: 	$table.='</table>';
  175: 	$Apache::matchresponse::itemtable{'display'}=$table;
  176: 	$Apache::lonxml::post_evaluate=0;
  177:     } elsif ($target eq 'tex') {
  178: 	my $table=' \begin{description}\setlength{\leftmargin}{2em}\setlength{\labelwidth}{1em}\setlength{\itemsep}{0.5pt plus1pt minus2pt}\setlength{\listparindent}{0em} ';
  179: 	my $i=0;
  180: 	foreach my $name (@names) {
  181: 	    # $Apache::response::itemgroup{$name.'.text'}=~s/\$\$/\$/g;
  182: 	    $table.='\item['.$alphabet[$i].'] '.
  183: 		$Apache::response::itemgroup{$name.'.text'};
  184: 	    $i++;
  185: 	}
  186: 	$table.=' \end{description}  \strut ';
  187: 	if ($Apache::lonhomework::type eq 'exam')  {$table.='\vskip -13 mm \strut ';}
  188: 	$Apache::matchresponse::itemtable{'display'}=$table;
  189: 	$Apache::lonxml::post_evaluate=0;
  190:     }
  191:     return $result;
  192: }
  193: 
  194: sub start_item {
  195:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  196:     my $result='';
  197:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
  198: 	&Apache::lonxml::startredirection;
  199:     } elsif ($target eq 'edit') {
  200: 	my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
  201: 						 $safeeval,'-2');
  202: 	$result=&Apache::edit::tag_start($target,$token,"Item");
  203: 	$result.=&Apache::edit::text_arg('Name:','name',$token);
  204: 	if ($randomize ne 'no') {
  205: 	    $result.='&nbsp;'x 3 .
  206:                      &Apache::edit::select_arg('Location:','location',
  207: 					       ['random','top','bottom'],
  208: 					       $token);
  209: 	}
  210: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
  211:     } elsif ($target eq 'modified') {
  212: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
  213: 						     $safeeval,'name',
  214: 						     'location');
  215: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
  216:     }
  217:     return $result;
  218: }
  219: 
  220: sub end_item {
  221:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  222:     my $text ='';
  223:     my $result = '';
  224:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
  225: 	$text=&Apache::lonxml::endredirection;
  226:     }
  227:     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
  228: 	$target eq 'edit' || $target eq 'tex' || $target eq 'analyze') {
  229: 	my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
  230: 	my $location=&Apache::lonxml::get_param('location',$parstack,
  231: 						$safeeval);
  232: 	&Apache::lonxml::debug("Got a name of :$name:");
  233: 	if ($name eq "") { $name=$Apache::lonxml::curdepth; }
  234: 	&Apache::lonxml::debug("Using a name of :$name:");
  235: 	push @{ $Apache::response::itemgroup{'names'} }, $name;
  236: 	$Apache::response::itemgroup{"$name.text"} = $text;
  237: 	$Apache::response::itemgroup{"$name.location"} = $location;
  238:     }
  239:     if ($target eq 'edit') {
  240: 	$result.= &Apache::edit::tag_end($target,$token,'');
  241:     }
  242:     return $result;
  243: }
  244: 
  245: sub insert_item {
  246:     return '
  247: <item name="">
  248: <startouttext />
  249: <endouttext />
  250: </item>';
  251: }
  252: 
  253: %Apache::response::foilgroup=();
  254: sub start_foilgroup {
  255:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  256:     my $result;
  257:     %Apache::response::foilgroup=();
  258:     $Apache::matchresponse::conceptgroup=0;
  259:     &Apache::response::pushrandomnumber(undef,$target);
  260:     if ($target eq 'edit') {
  261: 	$result.=&Apache::edit::start_table($token)
  262: 	    .'<tr><td>'.&mt('Collection Of Foils').'</td>'
  263:             .'<td><span class="LC_nobreak">'.&mt('Delete?')
  264: 	    .&Apache::edit::deletelist($target,$token)
  265: 	    .'</span></td>'
  266:             .'<td>&nbsp;'.&Apache::edit::end_row()
  267:             .&Apache::edit::start_spanning_row()."\n";
  268:     }
  269:     return $result;
  270: }
  271: 
  272: sub end_foilgroup {
  273:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  274:     my $result;
  275:     my $part        = $Apache::inputtags::part;
  276:     my $response_id = $Apache::inputtags::response[-1];
  277: 
  278:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || $target eq 'tex' || $target eq 'analyze') {
  279: 	my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
  280: 	my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
  281: 						   $safeeval,'-2');
  282: 	if ($target eq 'web' || $target eq 'tex') {
  283: 	    $result=&displayfoils($target,$max,$randomize);
  284: 	    $Apache::lonxml::post_evaluate=0;
  285: 	} elsif ($target eq 'answer' ) {
  286: 	    $result=&displayanswers($max,$randomize);
  287: 	} elsif ( $target eq 'grade') {
  288: 	    &grade_response($max,$randomize);
  289: 	} elsif ( $target eq 'analyze') {
  290: 	    my @shown=&whichfoils($max,$randomize);
  291: 	    &Apache::response::analyze_store_foilgroup(\@shown,
  292: 						 ['text','value','location']);
  293: 	    #FIXME need to store options in some way
  294: 	}
  295: 	&Apache::lonxml::increment_counter(&getfoilcounts($max), 
  296: 					   "$part.$response_id");
  297: 	if ($target eq 'analyze') {
  298: 	    &Apache::lonhomework::set_bubble_lines();
  299: 	}
  300: 
  301:     } elsif ($target eq 'edit') {
  302: 	$result=&Apache::edit::end_table();
  303:     }
  304:     &Apache::response::poprandomnumber();
  305:     return $result;
  306: }
  307: 
  308: sub whichfoils {
  309:     my ($max,$randomize)=@_;
  310:     return &Apache::response::whichorder(&getfoilcounts($max),
  311: 					 $randomize,
  312: 					 &Apache::response::showallfoils(),
  313: 					 \%Apache::response::foilgroup);
  314: }
  315: 
  316: sub displayanswers {
  317:     my ($max,$randomize,@opt)=@_;
  318:     if (ref($Apache::response::foilgroup{'names'}) eq 'ARRAY') {
  319:         if (!@{ $Apache::response::foilgroup{'names'} }) { return; }
  320:     } else {
  321:         return;
  322:     }
  323:     my @names = @{ $Apache::response::foilgroup{'names'} };
  324:     my @whichfoils = &Apache::response::whichorder(&getfoilcounts($max),
  325: 						   $randomize,
  326: 					  &Apache::response::showallfoils(),
  327: 					 \%Apache::response::foilgroup);
  328:     my %name_letter_map;
  329:     if (ref($Apache::response::itemgroup{'name_letter_map'}) eq 'HASH') {
  330:         if (%{$Apache::response::itemgroup{'name_letter_map'}}) {
  331:             %name_letter_map=
  332:                 %{ $Apache::response::itemgroup{'name_letter_map'} };
  333:         }
  334:     }
  335:     my $result;
  336:     if ($Apache::lonhomework::type eq 'exam') {
  337: 	my $i=0;
  338: 	foreach my $name (@whichfoils) {
  339: 	    $result.=&Apache::response::answer_header('matchresponse',$i++);
  340: 	    my $value_name=$Apache::response::foilgroup{$name.'.value'};
  341: 	    my $letter=$name_letter_map{$value_name};
  342: 	    $result.=&Apache::response::answer_part('matchresponse',$letter);
  343: 	    $result.=&Apache::response::answer_footer('matchresponse');
  344: 	}
  345:     } else {
  346: 	$result=&Apache::response::answer_header('matchresponse');
  347: 	foreach my $name (@whichfoils) {
  348: 	    my $value_name=$Apache::response::foilgroup{$name.'.value'};
  349: 	    my $letter=$name_letter_map{$value_name};
  350: 	    $result.=&Apache::response::answer_part('matchresponse',$letter);
  351: 	}
  352: 	$result.=&Apache::response::answer_footer('matchresponse');
  353:     }
  354:     return $result;
  355: }
  356: 
  357: 
  358: sub grade_response {
  359:     my ($max,$randomize)=@_;
  360:     my (@whichfoils)=&Apache::response::whichorder(&getfoilcounts($max),
  361: 						   $randomize,
  362: 				            &Apache::response::showallfoils(),
  363: 				           \%Apache::response::foilgroup);
  364:     if (!&Apache::response::submitted()) { return; }
  365:     my %responsehash;
  366:     my %grade;
  367:     my %answerhash;
  368:     my ($temp,$right,$wrong,$ignored)=(1,0,0,0);
  369:     my %letter_name_map;
  370:     if (ref($Apache::response::itemgroup{'letter_name_map'}) eq 'HASH') {
  371:         if (%{$Apache::response::itemgroup{'letter_name_map'}}) {
  372:             %letter_name_map=
  373:                 %{ $Apache::response::itemgroup{'letter_name_map'} };
  374:         }
  375:     }
  376:     my @items;
  377:     foreach my $name (@whichfoils) {
  378: 	my $response = &Apache::response::getresponse($temp,'letter');
  379: 	push(@items,$response);
  380: 	my $responsename = $letter_name_map{$response};
  381: 	my $value=$Apache::response::foilgroup{$name.'.value'};
  382:         if ($Apache::lonhomework::type eq 'randomizetry') {
  383:             $answerhash{$name} = $value;
  384:         }
  385: 	if ( $response =~ /[^\s]/) {
  386: 	    $responsehash{$name}=$responsename;
  387: 	    &Apache::lonxml::debug("submitted a $response($responsename) for $value<br />\n");
  388: 	    if ($value eq $responsename) {
  389: 		$grade{$name}='1'; $right++;
  390: 	    } else {
  391: 		$grade{$name}='0'; $wrong++;
  392: 	    }
  393: 	} else {
  394: 	    $ignored++;
  395: 	}
  396: 	$temp++;
  397:     }
  398:     my $part=$Apache::inputtags::part;
  399:     my $id = $Apache::inputtags::response['-1'];
  400:     my $responsestr=&Apache::lonnet::hash2str(%responsehash);
  401:     my $itemstr    =&Apache::lonnet::array2str(@items);
  402:     my $gradestr   =&Apache::lonnet::hash2str(%grade);
  403:     my %previous=&Apache::response::check_for_previous($responsestr,$part,$id);
  404:     &Apache::lonxml::debug("Got $right right and $wrong wrong, and $ignored were ignored ");
  405:     $Apache::lonhomework::results{"resource.$part.$id.submission"}=
  406: 	$responsestr;
  407:     $Apache::lonhomework::results{"resource.$part.$id.submissionitems"}=
  408: 	$itemstr;
  409:     $Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=
  410: 	$gradestr;
  411:     if ($Apache::lonhomework::type eq 'randomizetry') {
  412:         $Apache::lonhomework::results{"resource.$part.$id.foilorder"} = &Apache::lonnet::array2str(@whichfoils);
  413:     }
  414:     if (($Apache::lonhomework::type eq 'survey') ||
  415:         ($Apache::lonhomework::type eq 'surveycred') ||
  416:         ($Apache::lonhomework::type eq 'anonsurvey') ||
  417:         ($Apache::lonhomework::type eq 'anonsurveycred')) {
  418: 	if ($ignored == 0) {
  419: 	    my $ad;
  420:             if ($Apache::lonhomework::type eq 'anonsurvey') {
  421:                 $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS';
  422:             } elsif ($Apache::lonhomework::type eq 'anonsurveycred') {
  423:                 $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS_CREDIT';
  424:             } elsif ($Apache::lonhomework::type eq 'surveycred') {
  425:                 $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED_CREDIT';
  426:             } else {
  427:                 $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
  428:             }
  429: 	    &Apache::response::handle_previous(\%previous,$ad);
  430: 	} elsif ($wrong==0 && $right==0) {
  431: 	} else {
  432: 	    my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='MISSING_ANSWER';
  433: 	    &Apache::response::handle_previous(\%previous,$ad);
  434: 	}
  435:     } elsif (!$Apache::lonhomework::scantronmode) {
  436: 	my $ad;
  437: 	if ($wrong==0 && $ignored==0) {
  438: 	    $ad='EXACT_ANS';
  439: 	} elsif ($wrong==0 && $right==0) {
  440: 	    #nothing submitted
  441: 	} else {
  442: 	    if ($ignored==0) {
  443: 		$ad='INCORRECT';
  444: 	    } else {
  445: 		$ad='MISSING_ANSWER';
  446: 	    }
  447: 	}
  448: 	$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
  449: 	&Apache::response::handle_previous(\%previous,$ad);
  450:     } else {
  451: 	my $ad;
  452: 	if ($wrong==0 && $right==0) {
  453: 	    #nothing submitted
  454: 	} else {
  455: 	    $ad='ASSIGNED_SCORE';
  456: 	    $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
  457: 		$ad;
  458: 	    $Apache::lonhomework::results{"resource.$part.$id.awarded"}=
  459: 		$right/(scalar(@whichfoils));
  460: 	    $Apache::lonhomework::results{"resource.$part.$id.numfoils"}=
  461: 		scalar(@whichfoils);
  462: 	}
  463:     }
  464: }
  465: 
  466: sub format_prior_answer {
  467:     my ($mode,$answer,$other_data) = @_;
  468:     my %answer      =&Apache::lonnet::str2hash($answer);
  469:     my $foil_order  =$other_data->[0];
  470:     my %grading     =&Apache::lonnet::str2hash($other_data->[1]);
  471:     my @items       =&Apache::lonnet::str2array($other_data->[2]);
  472:     my $output;
  473:     
  474:     foreach my $name (@{ $foil_order }) {
  475: 	my $item=shift(@items);
  476: 	$output .= '<tr><td>'.$item.'</td></tr>';
  477:     }
  478:     return if (!defined($output));
  479: 
  480:     $output = '<table class="LC_prior_match">'.$output.'</table>';
  481:     return $output;
  482: }
  483: 
  484: sub itemdisplay {
  485:     my ($location)=@_;
  486:     if ($location eq 'top' &&
  487: 	!defined($Apache::matchresponse::itemtable{'location'})) {
  488: 	return $Apache::matchresponse::itemtable{'display'};
  489:     }
  490:     if ($Apache::matchresponse::itemtable{'location'} eq $location) {
  491: 	return $Apache::matchresponse::itemtable{'display'};
  492:     }
  493:     return undef;
  494: }
  495: 
  496: sub displayfoils {
  497:     my ($target,$max,$randomize)=@_;
  498:     my ($tabsize, $lefttabsize, $righttabsize);
  499: 
  500:     my $result;
  501:     my $question;
  502:     my (@whichfoils)=&Apache::response::whichorder(&getfoilcounts($max),
  503: 						   $randomize,
  504: 				            &Apache::response::showallfoils(),
  505: 				           \%Apache::response::foilgroup);
  506:     my $part=$Apache::inputtags::part;
  507:     my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
  508:     my %letter_name_map;
  509:     if (ref($Apache::response::itemgroup{'letter_name_map'}) eq 'HASH') {
  510:         if (%{$Apache::response::itemgroup{'letter_name_map'}}) {
  511:             %letter_name_map=
  512:                 %{ $Apache::response::itemgroup{'letter_name_map'} };
  513:         }
  514:     }
  515:     my %name_letter_map;
  516:     if (ref($Apache::response::itemgroup{'name_letter_map'}) eq 'HASH') {
  517:         if (%{$Apache::response::itemgroup{'name_letter_map'}}) {
  518:             %name_letter_map=
  519:                 %{ $Apache::response::itemgroup{'name_letter_map'} };
  520:         }
  521:     }
  522:     if ( &Apache::response::show_answer() && ($target ne 'tex')) {
  523: 	foreach my $name (@whichfoils) {
  524: 	    my $text=$Apache::response::foilgroup{$name.'.text'};
  525: 	    my $value=$Apache::response::foilgroup{$name.'.value'};
  526: 	    my $letter=$name_letter_map{$value};
  527: 	    if ($target eq 'tex') {
  528: 		$question.=' \\\\ '.$letter.':'.$text;
  529: 	    } else {
  530: 		$question.='<br /><b>'.$letter.':</b> '.$text;
  531: 	    }
  532: 	}
  533:     } else {
  534: 	my $i = 0;
  535: 	my $temp=1;
  536: 	my $id=$Apache::inputtags::response[-1];
  537: 	my $part=$Apache::inputtags::part;
  538:         my ($lastresponse,$newvariation);
  539:         if ((($Apache::lonhomework::history{"resource.$part.type"} eq 'randomizetry') ||
  540:             ($Apache::lonhomework::type eq 'randomizetry')) &&
  541:             ($Apache::inputtags::status[-1] eq 'CAN_ANSWER')) {
  542:             if ($env{'form.'.$part.'.rndseed'} ne
  543:                 $Apache::lonhomework::history{"resource.$part.rndseed"}) {
  544:                 $newvariation = 1;
  545:             }
  546:         }
  547:         unless ((($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurvey') || ($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurveycred') && (defined($env{'form.grade_symb'}))) || $newvariation) {
  548: 	    $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
  549:         }
  550: 	my %lastresponse=&Apache::lonnet::str2hash($lastresponse);    
  551: 	my @alphabet=('A'..'Z');
  552: 	my @used_letters=sort(keys(%letter_name_map));
  553: 	my $internal_counter=$Apache::lonxml::counter;
  554: 	foreach my $name (@whichfoils) {
  555: 	    my $lastopt=$lastresponse{$name};
  556: 	    my $last_letter=$name_letter_map{$lastopt};
  557: 	    my $optionlist = '';
  558: 	    if ($target ne 'tex') {
  559: 		$optionlist="<option></option>\n";
  560: 	    } else {
  561: 		if ($Apache::lonhomework::type ne 'exam') {
  562:                     if($env{'form.pdfFormFields'} eq 'yes'
  563:                        && $Apache::inputtags::status['-1'] eq 'CAN_ANSWER') {
  564:                         my $fieldname = $env{'request.symb'} . '&part_'. $Apache::inputtags::part .'&matchresponse'. '&HWVAL_' . $Apache::inputtags::response['-1'] . ':' . $temp . '&submit_' . $Apache::inputtags::part . '&';
  565:                         $optionlist = &Apache::lonxml::print_pdf_start_combobox($fieldname);
  566:                     } else {
  567: 
  568:                         $optionlist='\framebox[10 mm][s]{\tiny\strut}';
  569:                     }
  570:                 }
  571: 	    }
  572: 	    my $option;
  573: 	    foreach $option (@used_letters) {
  574: 		if ($option eq $last_letter) {
  575: 		    if ($target ne 'tex') {
  576:                         $optionlist.="<option selected=\"selected\">$option</option>\n";
  577:                     } elsif ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
  578:                              && $Apache::inputtags::status['-1'] eq 'CAN_ANSWER'
  579:                              && $Apache::lonhomework::type ne 'exam') {
  580:                         $optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option);
  581:                     }
  582: 		} else {
  583: 		    if ($target ne 'tex') {
  584:                         $optionlist.="<option>$option</option>\n";
  585:                     } elsif ($target eq 'tex' && $env{'form.pdfFormFields'} eq 'yes'
  586:                              && $Apache::inputtags::status['-1'] eq 'CAN_ANSWER'
  587:                              && $Apache::lonhomework::type ne 'exam') {
  588:                         $optionlist .= &Apache::lonxml::print_pdf_add_combobox_option($option);
  589:                     }
  590: 		}
  591: 	    }
  592: 	    if ($target ne 'tex' && $Apache::lonhomework::type ne 'exam') {
  593: 	        $optionlist='<select onchange="javascript:setSubmittedPart(\''.
  594: 		  $part.'\');" name="HWVAL_'.
  595: 		    $Apache::inputtags::response[-1].':'.$temp.'">'.
  596: 		        $optionlist."</select>\n";
  597: 	    }
  598: 	    my $text=$Apache::response::foilgroup{$name.'.text'};
  599: 	    #
  600:             #  Factor out the tex computations of the left/right 1/2 minipage
  601: 	    #  widths for left or right positioning.  This allows us
  602: 	    #  to, if necessary constrain the bubble widths:
  603: 	    #
  604: 	    if ($target eq 'tex'   &&
  605: 		(&itemdisplay('left') || &itemdisplay('right'))) {
  606: 		$tabsize=&Apache::londefdef::recalc($env{'form.textwidth'});
  607: 		($lefttabsize,$righttabsize)=(0,0);
  608: 		if ($Apache::matchresponse::TeXitemgroupwidth ne '') {
  609: 		    $Apache::matchresponse::TeXitemgroupwidth=~/(\d*.?\d*)/;
  610: 		    $lefttabsize=$tabsize*$1/100;	
  611: 		    $righttabsize=0.95*($tabsize-$lefttabsize);
  612: 		} else {
  613: 		    $tabsize=~/(\d+\.?\d*)/;
  614: 		    $lefttabsize=$1/2.1;
  615: 		    $righttabsize=0.95*($1-$lefttabsize);
  616: 		}
  617: 	    }
  618: 	    if ($target ne 'tex') {
  619: 		if ($Apache::lonhomework::type ne 'exam') {
  620: 		    $question.="<br />\n".$optionlist.$text;
  621: 		} else {
  622: 		    $question.="<br />\n".$text;
  623: 		}
  624: 		if ($Apache::lonhomework::type eq 'exam') {
  625: 		    my @blank;
  626: 		    $question.=&Apache::optionresponse::webbubbles(\@used_letters,\@blank,$temp,$last_letter);
  627: 		}
  628: 	    } else {		
  629: 		# Note that if left or right positioned, we must
  630: 		# confine the bubbles to righttabsize:
  631: 		#
  632: 		if ($Apache::lonhomework::type eq 'exam') {
  633: 		    $question.=' '.$optionlist.$text."\n";
  634: 		    my @emptyItems = ();
  635: 		    for (my $i=0;$i<=$#used_letters;$i++) {push @emptyItems, ' ';}
  636: 		    $question.='\vskip -1 mm\noindent\begin{list}{}{\setlength{\listparindent}{0mm}\setlength{\leftmargin}{2mm}}'
  637: 			.'\item \hskip -3mm \textbf{'.$internal_counter.'}';
  638: 		    if (&itemdisplay('left') || &itemdisplay('right')) {
  639: 			$question .= '\vskip -4 mm' . &Apache::optionresponse::bubbles(\@used_letters,\@emptyItems, "", $righttabsize);
  640: 		    }
  641: 		    else {
  642: 			$question .= '\vskip -4 mm' . &Apache::optionresponse::bubbles(\@used_letters,\@emptyItems);
  643: 		    }
  644: 		    $question .= '\end{list} \vskip -8 mm \strut ';
  645: 		    $internal_counter++;
  646: 	        } else {
  647:                     if($env{'form.pdfFormFields'} eq 'yes' 
  648:                             && $Apache::inputtags::status['-1'] eq 'CAN_ANSWER') {
  649:                         $question .= " $optionlist ". &Apache::lonxml::print_pdf_end_combobox($text).'\strut';
  650:                     } else {
  651:                         $question.=' '.$optionlist.$text.'\strut\\\\\strut '."\n";
  652:                     }
  653: 		}
  654:             } 
  655: 	    $temp++;
  656: 	}
  657:     }
  658:     if ($result=&itemdisplay('top')) {
  659: 	$result.=$question;
  660:     } elsif ($result=&itemdisplay('bottom')) {
  661: 	$result=$question.$result;
  662:     } elsif ($result=&itemdisplay('right')) {
  663: 	if ($target ne 'tex') {
  664: 	    #remove the first <br />
  665: 	    $question=~s|<br />||;
  666: 	    $result='<table><tr><td valign="top">'.$question.
  667: 		'</td><td valign="top">'.$result.'</td></tr></table>';
  668: 	} else {
  669: 	    $lefttabsize.=' mm ';
  670: 	    $righttabsize.=' mm ';
  671: 	    $result='\setlength{\tabcolsep}{1 mm}\begin{tabular}{p{'.$righttabsize.'}p{'.$lefttabsize.'}}\begin{minipage}{'.$righttabsize.'}'.$question.'\end{minipage}&\begin{minipage}{'.$lefttabsize.'}'.$result.'\end{minipage}\end{tabular}';
  672: 	}
  673:     } elsif ($result=&itemdisplay('left')) {
  674: 	if ($target ne 'tex') {
  675: 	    #remove the first <br />
  676: 	    $question=~s|<br />||;
  677: 	    $result='<table><tr><td valign="top">'.$result.
  678: 		'</td><td valign="top">'.$question.'</td></tr></table>';
  679: 	} else {
  680: 	    $lefttabsize.=' mm ';
  681: 	    $righttabsize.=' mm ';
  682: 	    $result='\setlength{\tabcolsep}{1 mm}\begin{tabular}{p{'.$lefttabsize.'}p{'.$righttabsize.'}}\begin{minipage}{'.$lefttabsize.'}'.$result.'\end{minipage}&\begin{minipage}{'.$righttabsize.'}'.$question.'\end{minipage}\end{tabular}';
  683: 	}
  684:     }
  685:     if ($target eq 'web') {
  686:         my $questiontype;
  687:         if ($Apache::lonhomework::type eq 'randomizetry') {
  688:             $questiontype = $Apache::lonhomework::type;
  689:         }
  690: 	&Apache::response::setup_prior_tries_hash(\&format_prior_answer,
  691: 						  [\@whichfoils,
  692: 						   'submissiongrading',
  693: 						   'submissionitems'],
  694:                                                   $questiontype);
  695:     }
  696:     if ($target ne 'tex') {$result.="<br />";} else {$result.=' \\\\ ';}
  697:     return $result;
  698: }
  699: 
  700: sub getfoilcounts {
  701:     my ($max)=@_;
  702:     # +1 since instructors will count from 1
  703:     my $count = $#{ $Apache::response::foilgroup{'names'} }+1;
  704:     if (&Apache::response::showallfoils()) { $max=$count; }
  705:     if ($count>$max) { $count=$max } 
  706:     &Apache::lonxml::debug("Count is $count from $max");
  707:     return $count;
  708: }
  709: 
  710: 
  711: sub start_conceptgroup {
  712:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  713:     $Apache::matchresponse::conceptgroup=1;
  714:     %Apache::response::conceptgroup=();
  715:     my $result;
  716:     if ($target eq 'edit') {
  717: 	$result.=&Apache::edit::tag_start($target,$token,
  718: 					  "Concept Grouped Foils");
  719: 	$result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
  720: 	    &Apache::edit::end_row().&Apache::edit::start_spanning_row();
  721:     }
  722:     if ($target eq 'modified') {
  723: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
  724: 						     $safeeval,'concept');
  725: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
  726:     }
  727:     return $result;
  728: }
  729: 
  730: sub end_conceptgroup {
  731:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  732:     $Apache::matchresponse::conceptgroup=0;
  733:     my $result='';
  734:     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
  735: 	$target eq 'tex' || $target eq 'analyze') {
  736: 	&Apache::response::pick_foil_for_concept($target,
  737: 						 ['value','text','location'],
  738: 						 \%Apache::hint::match,
  739: 						 $parstack,$safeeval);
  740:     } elsif ($target eq 'edit') {
  741: 	$result=&Apache::edit::end_table();
  742:     }
  743:     return $result;
  744: }
  745: 
  746: sub insert_conceptgroup {
  747:     my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
  748:     return $result;
  749: }
  750: 
  751: sub start_foil {
  752:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  753:     my $result='';
  754:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
  755: 	&Apache::lonxml::startredirection;
  756: 	if ($target eq 'analyze') {
  757: 	    &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
  758: 	}
  759:     } elsif ($target eq 'edit') {
  760: 	$result=&Apache::edit::tag_start($target,$token,"Foil");
  761: 	my $level='-2';
  762: 	if ($$tagstack[-2] eq 'conceptgroup') { $level = '-3'; }
  763: 	$result.=&Apache::edit::text_arg('Name:','name',$token);
  764: 	my @names;
  765:         if (ref($Apache::response::itemgroup{'names'}) eq 'ARRAY') {
  766:             if (@{ $Apache::response::itemgroup{'names'} }) {
  767:                 @names=@{ $Apache::response::itemgroup{'names'} };
  768:             }
  769:         }
  770: 	$result.= &Apache::edit::select_or_text_arg('Correct Option:','value',['unused',@names],$token,'15');
  771: 	my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
  772: 						 $safeeval,'-3');
  773: 	if ($randomize ne 'no') {
  774: 	    $result.=&Apache::edit::select_arg('Location:','location',
  775: 					     ['random','top','bottom'],$token);
  776: 	}
  777: 	$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
  778:     } elsif ($target eq 'modified') {
  779: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
  780: 						     $safeeval,'value',
  781: 						     'name','location');
  782: 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
  783:     }
  784:     return $result;
  785: }
  786: 
  787: sub end_foil {
  788:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  789:     my $text ='';
  790:     my $result = '';
  791:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
  792: 	$text=&Apache::lonxml::endredirection;
  793:     }
  794: 
  795:     if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
  796: 	$target eq 'tex' || $target eq 'analyze') {
  797: 	if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
  798: 	    $text='\vskip 5mm $\triangleright$ '.$text;
  799: 	}
  800: 	my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
  801: 	if ($value ne 'unused') {
  802: 	    my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
  803: 	    &Apache::lonxml::debug("Got a name of :$name:");
  804: 	    if (!$name) {
  805: 		&Apache::lonxml::warning(&mt('Foils without names exist. This can cause problems to malfunction.'));
  806: 		$name=$Apache::lonxml::curdepth;
  807: 	    }
  808: 	    &Apache::lonxml::debug("Using a name of :$name:");
  809: 	    if (defined($Apache::response::foilnames{$name})) {
  810: 		&Apache::lonxml::error(&mt("Foil name [_1] appears more than once. Foil names need to be unique.",'<b><tt>'.$name.'</tt></b>'));
  811: 	    }
  812: 	    $Apache::response::foilnames{$name}++;
  813: 	    my $location =&Apache::lonxml::get_param('location',$parstack,
  814: 						     $safeeval);
  815: 	    if ( $Apache::matchresponse::conceptgroup
  816: 		 && !&Apache::response::showallfoils() ) {
  817: 
  818: 		push @{ $Apache::response::conceptgroup{'names'} }, $name;
  819: 		$Apache::response::conceptgroup{"$name.value"} = $value;
  820: 		$Apache::response::conceptgroup{"$name.text"} = $text;
  821: 		$Apache::response::conceptgroup{"$name.location"} = $location;
  822: 	    } else {
  823: 
  824: 		push @{ $Apache::response::foilgroup{'names'} }, $name;
  825: 		$Apache::response::foilgroup{"$name.value"} = $value;
  826: 		$Apache::response::foilgroup{"$name.text"} = $text;
  827: 		$Apache::response::foilgroup{"$name.location"} = $location;
  828: 	    }
  829: 	}
  830:     }
  831:     if ($target eq 'edit') {
  832: 	$result.= &Apache::edit::tag_end($target,$token,'');
  833:     }
  834:     return $result;
  835: }
  836: 
  837: sub insert_foil {
  838:     return '
  839: <foil name="" value="unused">
  840: <startouttext />
  841: <endouttext />
  842: </foil>';
  843: }
  844: 1;
  845: __END__

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