1: # The LearningOnline Network with CAPA
2: # mutliple choice style responses
3: #
4: # $Id: radiobuttonresponse.pm,v 1.130 2007/10/22 09:29:58 foxr 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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22: #
23: # /home/httpd/html/adm/gpl.txt
24: #
25: # http://www.lon-capa.org/
26: #
27:
28: package Apache::radiobuttonresponse;
29: use strict;
30: use HTML::Entities();
31: use Apache::lonlocal;
32: use Apache::lonnet;
33: use Apache::response;
34:
35: my $default_bubbles_per_line = 10;
36:
37:
38: BEGIN {
39: &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse'));
40: }
41:
42: sub bubble_line_count {
43: my ($numfoils, $bubbles_per_line) = @_;
44: my $bubble_lines;
45: $bubble_lines = int($numfoils / $bubbles_per_line);
46: if (($numfoils % $bubbles_per_line) != 0) {
47: $bubble_lines++;
48: }
49: return $bubble_lines;
50:
51: }
52:
53:
54: sub start_radiobuttonresponse {
55: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
56: my $result;
57:
58: #when in a radiobutton response use these
59: &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
60: push (@Apache::lonxml::namespace,'radiobuttonresponse');
61: my $id = &Apache::response::start_response($parstack,$safeeval);
62:
63: %Apache::hint::radiobutton=();
64: undef(%Apache::response::foilnames);
65: if ($target eq 'meta') {
66: $result=&Apache::response::meta_package_write('radiobuttonresponse');
67: } elsif ($target eq 'edit' ) {
68: $result.=&Apache::edit::start_table($token).
69: '<tr><td>'.&Apache::lonxml::description($token).
70: &Apache::loncommon::help_open_topic('Radio_Response_Problems').
71: "</td><td>Delete:".
72: &Apache::edit::deletelist($target,$token)
73: ."</td><td> ".&Apache::edit::end_row()
74: .&Apache::edit::start_spanning_row();
75: $result.=
76: &Apache::edit::text_arg('Max Number Of Shown Foils:','max',
77: $token,'4').
78: &Apache::edit::select_arg('Randomize Foil Order','randomize',
79: ['yes','no'],$token).
80: &Apache::edit::select_arg('Display Direction','direction',
81: ['vertical','horizontal'],$token).
82: &Apache::edit::end_row().
83: &Apache::edit::start_spanning_row()."\n";
84: } elsif ($target eq 'modified') {
85: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
86: $safeeval,'max',
87: 'randomize','direction');
88: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
89: } elsif ($target eq 'tex') {
90: my $type=&Apache::lonxml::get_param('TeXtype',$parstack,$safeeval,
91: undef,0);
92: if ($type eq '1') {
93: $result .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}';
94: } elsif ($type eq 'A') {
95: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
96: } elsif ($type eq 'a') {
97: $result .= ' \renewcommand{\labelenumi}{\alph{enumi}.}';
98: } elsif ($type eq 'i') {
99: $result .= ' \renewcommand{\labelenumi}{\roman{enumi}.}';
100: } else {
101: $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
102: }
103: $result .= '\begin{enumerate}';
104: } elsif ($target eq 'analyze') {
105: my $part_id="$Apache::inputtags::part.$id";
106: push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
107: }
108: return $result;
109: }
110:
111: sub end_radiobuttonresponse {
112: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
113: my $result;
114: if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
115: if ($target eq 'tex') { $result .= '\end{enumerate}'; }
116: &Apache::response::end_response;
117: pop @Apache::lonxml::namespace;
118: &Apache::lonxml::deregister('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
119: undef(%Apache::response::foilnames);
120: return $result;
121: }
122:
123: %Apache::response::foilgroup=();
124: sub start_foilgroup {
125: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
126: my $result;
127: %Apache::response::foilgroup=();
128: $Apache::radiobuttonresponse::conceptgroup=0;
129: &Apache::response::pushrandomnumber();
130: if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
131: $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]';
132: }
133: return $result;
134: }
135:
136: sub storesurvey {
137: if ( !&Apache::response::submitted() ) { return ''; }
138: my $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
139: &Apache::lonxml::debug("Here I am!:$response:");
140: if ( $response !~ /[0-9]+/) { return ''; }
141: my $part = $Apache::inputtags::part;
142: my $id = $Apache::inputtags::response['-1'];
143: my @whichfoils=@{ $Apache::response::foilgroup{'names'} };
144: my %responsehash;
145: $responsehash{$whichfoils[$response]}=$response;
146: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
147: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
148: $responsestr;
149: my %previous=&Apache::response::check_for_previous($responsestr,$part,$id);
150: my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
151: &Apache::response::handle_previous(\%previous,$ad);
152: &Apache::lonxml::debug("submitted a $response<br />\n");
153: return '';
154: }
155:
156:
157: sub grade_response {
158: my ($answer, $whichfoils, $bubbles_per_line)=@_;
159:
160: if ( !&Apache::response::submitted() ) { return; }
161: my $response;
162:
163: if ($env{'form.submitted'} eq 'scantron') {
164: $response = &Apache::response::getresponse(1,undef,
165: &bubble_line_count(scalar(@{ $whichfoils}),
166: $bubbles_per_line),
167: $bubbles_per_line);
168:
169: } else {
170: $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
171: }
172:
173:
174: if ( $response !~ /[0-9]+/) { return; }
175: my $part=$Apache::inputtags::part;
176: my $id = $Apache::inputtags::response['-1'];
177: my %responsehash;
178: $responsehash{$whichfoils->[$response]}=$response;
179: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
180: my %previous=&Apache::response::check_for_previous($responsestr,
181: $part,$id);
182: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
183: $responsestr;
184: &Apache::lonxml::debug("submitted a $response<br />\n");
185: my $ad;
186: if ($response == $answer) {
187: $ad='EXACT_ANS';
188: } else {
189: $ad='INCORRECT';
190: }
191: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
192: &Apache::response::handle_previous(\%previous,$ad);
193: }
194:
195: sub end_foilgroup {
196: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
197:
198: my $result;
199: my $bubble_lines;
200: my $bubbles_per_line;
201: my $answer_count;
202: my $id = $Apache::inputtags::response['-1'];
203: my $part = $Apache::inputtags::part;
204: $bubbles_per_line =
205: &Apache::response::get_response_param($Apache::inputtags::part."_$id",
206: 'numbubbles',
207: $default_bubbles_per_line);
208:
209:
210: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
211: $target eq 'tex' || $target eq 'analyze') {
212: my $style = $Apache::lonhomework::type;
213: my $direction = &Apache::lonxml::get_param('direction',$parstack,
214: $safeeval,'-2');
215: if ( $style eq 'survey' && $target ne 'analyze') {
216: if ($target eq 'web' || $target eq 'tex') {
217: $result=&displayallfoils($direction, $target);
218: } elsif ( $target eq 'answer' ) {
219: $result=&displayallanswers();
220: } elsif ( $target eq 'grade' ) {
221: $result=&storesurvey();
222: }
223: $answer_count = scalar(@{$Apache::response::foilgroup{'names'}});
224:
225: } else {
226:
227: my $name;
228: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,
229: '-2');
230: my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
231: $safeeval,'-2');
232: my ($answer, @shown) = &whichfoils($max, $randomize);
233: $answer_count = scalar(@shown);
234:
235: if ($target eq 'web' || $target eq 'tex') {
236: $result=&displayfoils($target,
237: $answer, \@shown,
238: $direction,
239: $bubbles_per_line);
240: } elsif ($target eq 'answer' ) {
241: $result=&displayanswers($answer, \@shown, $bubbles_per_line);
242: } elsif ( $target eq 'grade') {
243: &grade_response($answer, \@shown, $bubbles_per_line);
244: } elsif ( $target eq 'analyze') {
245: my $bubble_lines = &bubble_line_count($answer_count,
246: $bubbles_per_line);
247: &Apache::response::analyze_store_foilgroup(\@shown,
248: ['text','value','location']);
249: my $part_id="$part.$id";
250: push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },
251: ('true','false'));
252:
253: }
254: }
255: $Apache::lonxml::post_evaluate=0;
256: }
257: if ($target eq 'web') {
258: &Apache::response::setup_prior_tries_hash(\&format_prior_answer,
259: [\%Apache::response::foilgroup]);
260: }
261: &Apache::response::poprandomnumber();
262: $bubble_lines = &bubble_line_count($answer_count, $bubbles_per_line);
263: &Apache::lonxml::increment_counter($bubble_lines,
264: "$part.$id");
265: if ($target eq 'analyze') {
266: &Apache::lonhomework::set_bubble_lines();
267: }
268: return $result;
269: }
270:
271: sub getfoilcounts {
272: my @names;
273: my $truecnt=0;
274: my $falsecnt=0;
275: my $name;
276: if ( $Apache::response::foilgroup{'names'} ) {
277: @names= @{ $Apache::response::foilgroup{'names'} };
278: }
279: foreach $name (@names) {
280: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
281: $truecnt++;
282: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
283: $falsecnt++;
284: }
285: }
286: return ($truecnt,$falsecnt);
287: }
288:
289: sub format_prior_answer {
290: my ($mode,$answer,$other_data) = @_;
291: my $foil_data = $other_data->[0];
292: my %response = &Apache::lonnet::str2hash($answer);
293: my ($name) = keys(%response);
294: return '<span class="LC_prior_radiobutton">'.
295: $foil_data->{$name.'.text'}.'</span>';
296:
297: }
298:
299: sub displayallfoils {
300: my ($direction, $target)=@_;
301: my $result;
302: &Apache::lonxml::debug("survey style display");
303: my @names;
304: if ( $Apache::response::foilgroup{'names'} ) {
305: @names= @{ $Apache::response::foilgroup{'names'} };
306: }
307:
308: my $temp=0;
309: my $i =0;
310: my $id=$Apache::inputtags::response['-1'];
311: my $part=$Apache::inputtags::part;
312: my $lastresponse=
313: $Apache::lonhomework::history{"resource.$part.$id.submission"};
314: if ($direction eq 'horizontal') { $result.='<table><tr>'; }
315: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
316: if (&Apache::response::show_answer() ) {
317: foreach my $name (@names) {
318: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
319: if (($direction eq 'horizontal') && ($target ne 'tex')) {
320: $result.="<td>";
321: } else {
322: if ($target eq 'tex') {
323: $result .= '\item \vskip -2mm ';
324: } else {
325: $result.="<br />";
326: }
327: }
328: if (defined($lastresponse{$name})) {
329: if ($target eq 'tex') {
330: $result .= '}';
331: } else {
332: $result.='<b>';
333: }
334: }
335: $result .= $Apache::response::foilgroup{$name.'.text'};
336: if (defined($lastresponse{$name}) && ($target ne 'tex')) {
337: $result.='</b>';
338: }
339: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
340: }
341: }
342: } else {
343: foreach my $name (@names) {
344: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
345: if ($direction eq 'horizontal') {
346: $result.="<td>";
347: } else {
348: if ($target eq 'tex') {
349: $result .= '\item \vskip -2mm ';
350: } else {
351: $result.="<br />";
352: }
353: }
354: if ($target eq 'tex') {
355: $result .= '$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
356: $i++;
357: } else {
358: $result .= '<label>';
359: $result.="<input
360: onchange=\"javascript:setSubmittedPart('$part');\"
361: type=\"radio\"
362: name=\"HWVAL_$Apache::inputtags::response['-1']\"
363: value=\"$temp\" ";
364: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
365: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}.
366: '</label>';
367: }
368: $temp++;
369: if ($target ne 'tex') {
370: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.="</td>"; }
371: } else {
372: $result.='\vskip 0 mm ';
373: }
374: }
375: }
376: }
377:
378: if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.='</tr></table>'; }
379: return $result;
380: }
381:
382: =pod
383:
384: =item &whichfoils($max,$randomize)
385:
386: Randomizes the list of foils.
387: Respects
388: - each foils desire to be randomized
389: - the existance of Concept groups of foils (select 1 foil from each)
390: - and selects a single correct statement from all possilble true statments
391: - and limits it to a toal of $max foils
392:
393: WARNING: this routine uses the random number generator, it should only
394: be called once per target, otherwise it can cause randomness changes in
395: homework problems.
396:
397: Arguments
398: $max - maximum number of foils to select (including the true one)
399: (so a max of 5 is: 1 true, 4 false)
400:
401: $randomize - whether to randomize the listing of foils, by default
402: will randomize, only if randomize is 'no' will it not
403:
404: Returns
405: $answer - location in the array of the correct answer
406: @foils - array of foil names in to display order
407:
408: =cut
409:
410: sub whichfoils {
411: my ($max,$randomize)=@_;
412:
413: my @truelist;
414: my @falselist;
415: my @whichfalse =();
416: my ($truecnt,$falsecnt) = &getfoilcounts();
417: my $count=0;
418: # we will add in 1 of the true statements
419: if ( $max>0 && ($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; $max=$count; }
420: my $answer=int(&Math::Random::random_uniform() * ($count));
421: &Apache::lonxml::debug("Count is $count, $answer is $answer");
422: my @names;
423: if ( $Apache::response::foilgroup{'names'} ) {
424: @names= @{ $Apache::response::foilgroup{'names'} };
425: }
426: if (&Apache::response::showallfoils()) {
427: @whichfalse=@names;
428: } elsif ($randomize eq 'no') {
429: &Apache::lonxml::debug("No randomization");
430: my $havetrue=0;
431: foreach my $name (@names) {
432: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
433: if (!$havetrue ) {
434: push(@whichfalse,$name); $havetrue++; $answer=$#whichfalse;
435: }
436: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
437: push (@whichfalse,$name);
438: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
439: } else {
440: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
441: }
442: }
443: if (!$havetrue && $Apache::lonhomework::type ne 'survey') {
444: &Apache::lonxml::error("There are no true statements available.<br />");
445: }
446: } else {
447: my $current=0;
448: &Apache::lonhomework::showhash(%Apache::response::foilgroup);
449: my (%top,%bottom);
450: #first find out where everyone wants to be
451: foreach my $name (@names) {
452: $current++;
453: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
454: push (@truelist,$name);
455: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
456: $top{$name}=$current;
457: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
458: $bottom{$name}=$current;
459: }
460: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
461: push (@falselist,$name);
462: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
463: $top{$name}=$current;
464: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
465: $bottom{$name}=$current;
466: }
467: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
468: } else {
469: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
470: }
471: }
472: #pick a true statement
473: my $notrue=0;
474: if (scalar(@truelist) == 0) { $notrue=1; }
475: my $whichtrue = int(&Math::Random::random_uniform() * ($#truelist+1));
476: &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
477: my (@toplist, @bottomlist);
478: my $topcount=0;
479: my $bottomcount=0;
480: # assign everyone to either toplist/bottomlist or whichfalse
481: # which false is randomized, toplist bottomlist are in order
482: while ((($#whichfalse+$topcount+$bottomcount) < $max-2) && ($#falselist > -1)) {
483: &Apache::lonxml::debug("Have $#whichfalse max is $max");
484: my $afalse=int(&Math::Random::random_uniform() * ($#falselist+1));
485: &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
486: $afalse=splice(@falselist,$afalse,1);
487: &Apache::lonxml::debug("Picked $afalse");
488: &Apache::lonhomework::showhash(('names'=>\@names));
489: &Apache::lonhomework::showhash(%top);
490: if ($top{$afalse}) {
491: $toplist[$top{$afalse}]=$afalse;
492: $topcount++;
493: } elsif ($bottom{$afalse}) {
494: $bottomlist[$bottom{$afalse}]=$afalse;
495: $bottomcount++;
496: } else {
497: push (@whichfalse,$afalse);
498: }
499: }
500: &Apache::lonxml::debug("Answer wants $answer");
501: my $truename=$truelist[$whichtrue];
502: my $dosplice=1;
503: if ($notrue && $Apache::lonhomework::type ne 'survey') {
504: $dosplice=0;
505: &Apache::lonxml::error("There are no true statements available.<br />");
506: }
507: #insert the true statement, keeping track of where it wants to be
508: if ($Apache::response::foilgroup{$truename.'.location'} eq 'top' && $dosplice) {
509: $toplist[$top{$truename}]=$truename;
510: $answer=-1;
511: foreach my $top (reverse(@toplist)) {
512: if ($top) { $answer++;}
513: if ($top eq $truename) { last; }
514: }
515: $dosplice=0;
516: } elsif ($Apache::response::foilgroup{$truename.'.location'} eq 'bottom' && $dosplice) {
517: $bottomlist[$bottom{$truename}]=$truename;
518: $answer=-1;
519: foreach my $bot (@bottomlist) {
520: if ($bot) { $answer++;}
521: if ($bot eq $truename) { last; }
522: }
523: $answer+=$topcount+$#whichfalse+1;
524: $dosplice=0;
525: } else {
526: if ($topcount>0 || $bottomcount>0) {
527: $answer = int(&Math::Random::random_uniform() * ($#whichfalse+1))
528: + $topcount;
529: }
530: }
531: &Apache::lonxml::debug("Answer now wants $answer");
532: #add the top items to the top, bottom items to the bottom
533: for (my $i=0;$i<=$#toplist;$i++) {
534: if ($toplist[$i]) { unshift(@whichfalse,$toplist[$i]) }
535: }
536: for (my $i=0;$i<=$#bottomlist;$i++) {
537: if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) }
538: }
539: #if the true statement is randomized insert it into the list
540: if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); }
541: }
542: &Apache::lonxml::debug("Answer is $answer");
543: return ($answer,@whichfalse);
544: }
545:
546: sub displayfoils {
547: my ($target,$answer,$whichfoils,$direction, $bubbles_per_line)=@_;
548: my $result;
549:
550: my $part=$Apache::inputtags::part;
551: my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
552: if ( ($target ne 'tex') &&
553: &Apache::response::show_answer() ) {
554: if ($direction eq 'horizontal') {
555: if ($target ne 'tex') {
556: $result.='<table><tr>';
557: }
558: }
559: foreach my $name (@{ $whichfoils }) {
560: if ($direction eq 'horizontal') {
561: if ($target ne 'tex') { $result.='<td>'; }
562: }
563: if ($target ne 'tex') {
564: $result.="<br />";
565: } else {
566: $result.='\item \vskip -2 mm ';
567: }
568: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
569: if ($target ne 'tex') { $result.='Correct:<b>'; } else { $result.='Correct: \textbf{';}
570: } else {
571: $result.='Incorrect:';
572: }
573: if ($target eq 'web') { $result.="<label>"; }
574: $result.=$Apache::response::foilgroup{$name.'.text'};
575: if ($target eq 'web') { $result.="</label>"; }
576: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
577: if ($target ne 'tex') { $result.='</b>';} else {$result.='}';}
578: }
579: if ($direction eq 'horizontal') {
580: if ($target ne 'tex') { $result.='</td>'; }
581: }
582: }
583: if ($direction eq 'horizontal') {
584: if ($target ne 'tex') {
585: $result.='</tr></table>';
586: }
587: }
588: } else {
589: my @alphabet = ('A'..'Z');
590: my $i = 0;
591: my $bubble_number = 0;
592: my $line = 0;
593: my $temp=0;
594: my $id=$Apache::inputtags::response['-1'];
595: my $part=$Apache::inputtags::part;
596: my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
597: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
598: if ($target ne 'tex' && $direction eq 'horizontal') {
599: $result.="<table><tr>";
600: }
601: foreach my $name (@{ $whichfoils }) {
602: if ($target ne 'tex') {
603: if ($direction eq 'horizontal') {
604: $result.="<td>";
605: } else {
606: $result.="<br />";
607: }
608: }
609: if ($target ne 'tex') {
610: $result.= '<label>';
611: $result.=
612: "<input type=\"radio\"
613: onchange=\"javascript:setSubmittedPart('$part');\"
614: name=\"HWVAL_$Apache::inputtags::response['-1']\"
615: value=\"$temp\" ";
616: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
617: $result .= ' />'.$Apache::response::foilgroup{$name.'.text'}."</label>";
618: } else {
619: if ($Apache::lonhomework::type eq 'exam') {
620: if($bubble_number >= $bubbles_per_line) {
621: $line++;
622: $i = 0;
623: $bubble_number = 0;
624: $result.='\item[\textbf{'.($Apache::lonxml::counter+$line).'}.]';
625: }
626: $result .= '{\small \textbf{'.$alphabet[$i].'}}$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
627: $i++;
628: $bubble_number++;
629: } else {
630: $result .= '\vspace*{-2 mm}\item '.$Apache::response::foilgroup{$name.'.text'};
631: }
632: }
633: if ($target ne 'tex' && $direction eq 'horizontal') {
634: $result.="</td>";
635: }
636: $temp++;
637: }
638: if ($target ne 'tex' && $direction eq 'horizontal') {
639: $result.="</tr></table>";
640: }
641: }
642: if ($target ne 'tex') { if ($direction ne 'horizontal') { $result.="<br />";} } else { $result.='\vskip 0 mm '; }
643: return $result;
644: }
645:
646: sub displayallanswers {
647: my @names;
648: if ( $Apache::response::foilgroup{'names'} ) {
649: @names= @{ $Apache::response::foilgroup{'names'} };
650: }
651: my $result=&Apache::response::answer_header('radiobuttonresponse');
652: foreach my $name (@names) {
653: $result.=&Apache::response::answer_part('radiobuttonresponse',
654: $Apache::response::foilgroup{$name.'.value'});
655: }
656: $result.=&Apache::response::answer_footer('radiobuttonresponse');
657: return $result;
658: }
659:
660: sub displayanswers {
661: my ($answer, $whichopt, $bubbles_per_line)=@_;
662: my $result;
663:
664: if ($Apache::lonhomework::type eq 'exam') {
665: my $line = int($answer/$bubbles_per_line);
666: my $correct = ('A'..'Z')[$answer%$bubbles_per_line];
667: $result .= &Apache::response::answer_header('radiobuttonresponse',
668: $line);
669: $result .= &Apache::response::answer_part('radiobuttonresponse',
670: $correct);
671: } else {
672: $result .= &Apache::response::answer_header('radiobuttonresponse');
673: }
674: foreach my $name (@{ $whichopt }) {
675: $result.=&Apache::response::answer_part('radiobuttonresponse',
676: $Apache::response::foilgroup{$name.'.value'});
677: }
678: $result.=&Apache::response::answer_footer('radiobuttonresponse');
679: return $result;
680: }
681:
682: sub start_conceptgroup {
683: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
684: $Apache::radiobuttonresponse::conceptgroup=1;
685: %Apache::response::conceptgroup=();
686: my $result;
687: if ($target eq 'edit') {
688: $result.=&Apache::edit::tag_start($target,$token);
689: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
690: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
691: } elsif ($target eq 'modified') {
692: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
693: $safeeval,'concept');
694: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
695: }
696: return $result;
697: }
698:
699: sub end_conceptgroup {
700: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
701: $Apache::radiobuttonresponse::conceptgroup=0;
702: my $result;
703: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
704: $target eq 'tex' || $target eq 'analyze') {
705: &Apache::response::pick_foil_for_concept($target,
706: ['value','text','location'],
707: \%Apache::hint::radiobutton,
708: $parstack,$safeeval);
709: } elsif ($target eq 'edit') {
710: $result=&Apache::edit::end_table();
711: }
712: return $result;
713: }
714:
715: sub insert_conceptgroup {
716: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
717: return $result;
718: }
719:
720: sub start_foil {
721: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
722: my $result='';
723: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
724: &Apache::lonxml::startredirection;
725: if ($target eq 'analyze') {
726: &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
727: }
728: } elsif ($target eq 'edit') {
729: $result=&Apache::edit::tag_start($target,$token);
730: $result.=&Apache::edit::text_arg('Name:','name',$token);
731: $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
732: ['unused','true','false'],
733: $token);
734: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
735: $safeeval,'-3');
736: if ($randomize ne 'no') {
737: $result.=&Apache::edit::select_arg('Location:','location',
738: ['random','top','bottom'],$token);
739: }
740: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
741: } elsif ($target eq 'modified') {
742: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
743: $safeeval,'value','name',
744: 'location');
745: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
746: }
747: return $result;
748: }
749:
750: sub end_foil {
751: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
752: my $text='';
753: if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
754: $text=&Apache::lonxml::endredirection;
755: }
756: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
757: || $target eq 'tex' || $target eq 'analyze') {
758: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
759: if ($value ne 'unused') {
760: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
761: if ($name eq "") {
762: &Apache::lonxml::warning("Foils without names exist. This can cause problems to malfunction.");
763: $name=$Apache::lonxml::curdepth;
764: }
765: if (defined($Apache::response::foilnames{$name})) {
766: &Apache::lonxml::error(&mt("Foil name <b><tt>[_1]</tt></b> appears more than once. Foil names need to be unique.",$name));
767: }
768: $Apache::response::foilnames{$name}++;
769: my $location =&Apache::lonxml::get_param('location',$parstack,
770: $safeeval);
771: if ( $Apache::radiobuttonresponse::conceptgroup
772: && !&Apache::response::showallfoils() ) {
773: push @{ $Apache::response::conceptgroup{'names'} }, $name;
774: $Apache::response::conceptgroup{"$name.value"} = $value;
775: $Apache::response::conceptgroup{"$name.text"} = $text;
776: $Apache::response::conceptgroup{"$name.location"} = $location;
777: } else {
778: push @{ $Apache::response::foilgroup{'names'} }, $name;
779: $Apache::response::foilgroup{"$name.value"} = $value;
780: $Apache::response::foilgroup{"$name.text"} = $text;
781: $Apache::response::foilgroup{"$name.location"} = $location;
782: }
783: }
784: }
785: return '';
786: }
787:
788: sub insert_foil {
789: return '
790: <foil name="" value="unused">
791: <startouttext />
792: <endouttext />
793: </foil>';
794: }
795: 1;
796: __END__
797:
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