--- loncom/homework/radiobuttonresponse.pm 2001/01/08 21:52:04 1.2 +++ loncom/homework/radiobuttonresponse.pm 2012/01/05 11:56:34 1.153 @@ -1,53 +1,1245 @@ # The LearningOnline Network with CAPA # mutliple choice style responses - -# 11/23,11/24,11/28 Gerd Kortemeyer +# +# $Id: radiobuttonresponse.pm,v 1.153 2012/01/05 11:56:34 foxr Exp $ +# +# 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/ +# package Apache::radiobuttonresponse; use strict; +use HTML::Entities(); +use Apache::lonlocal; +use Apache::lonnet; +use Apache::response; + +my $default_bubbles_per_line = 10; + +BEGIN { + &Apache::lonxml::register( 'Apache::radiobuttonresponse', + ('radiobuttonresponse') ); +} + +sub bubble_line_count { + my ( $numfoils, $bubbles_per_line ) = @_; + my $bubble_lines; + $bubble_lines = int( $numfoils / $bubbles_per_line ); + if ( ( $numfoils % $bubbles_per_line ) != 0 ) { + $bubble_lines++; + } + return $bubble_lines; -sub BEGIN { - &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse','foilgroup','foil')); } sub start_radiobuttonresponse { + my ( $target, $token, $tagstack, $parstack, $parser, $safeeval, $style ) = + @_; + my $result; + + #when in a radiobutton response use these + &Apache::lonxml::register( 'Apache::radiobuttonresponse', + ( 'foilgroup', 'foil', 'conceptgroup' ) ); + push( @Apache::lonxml::namespace, 'radiobuttonresponse' ); + my $id = &Apache::response::start_response( $parstack, $safeeval ); + + %Apache::hint::radiobutton = (); + undef(%Apache::response::foilnames); + if ( $target eq 'meta' ) { + $result = &Apache::response::meta_package_write('radiobuttonresponse'); + } + elsif ( $target eq 'edit' ) { + $result .= + &Apache::edit::start_table($token) + . '' + . &Apache::lonxml::description($token) + . &Apache::loncommon::help_open_topic('Radio_Response_Problems') + . '' + . '' + . &mt('Delete?') . ' ' + . &Apache::edit::deletelist( $target, $token ) + . '' + . ' ' + . &Apache::edit::end_row() + . &Apache::edit::start_spanning_row(); + $result .= &Apache::edit::text_arg( 'Max Number Of Shown Foils:', + 'max', $token, '4' ) + . ' ' x 3 + . &Apache::edit::select_arg( 'Randomize Foil Order:', + 'randomize', [ 'yes', 'no' ], $token ) + . ' ' x 3 + . &Apache::edit::select_arg( + 'Display Direction:', 'direction', + [ 'vertical', 'horizontal' ], $token + ) + . &Apache::edit::end_row() + . &Apache::edit::start_spanning_row() . "\n"; + } + elsif ( $target eq 'modified' ) { + my $constructtag = + &Apache::edit::get_new_args( $token, $parstack, $safeeval, 'max', + 'randomize', 'direction' ); + if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); } + } + elsif ( $target eq 'tex' ) { + my $type = + &Apache::lonxml::get_param( 'TeXtype', $parstack, $safeeval, undef, + 0 ); + if ( $type eq '1' ) { + $result .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}'; + } + elsif ( $type eq 'A' ) { + $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}'; + } + elsif ( $type eq 'a' ) { + $result .= ' \renewcommand{\labelenumi}{\alph{enumi}.}'; + } + elsif ( $type eq 'i' ) { + $result .= ' \renewcommand{\labelenumi}{\roman{enumi}.}'; + } + else { + $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}'; + } + if ( $env{'form.pdfFormFields'} eq 'yes' + && $Apache::inputtags::status[-1] eq 'CAN_ANSWER' ) + { + $result .= '\begin{itemize}'; + } + else { + $result .= '\begin{enumerate}'; + } + } + elsif ( $target eq 'analyze' ) { + my $part_id = "$Apache::inputtags::part.$id"; + $Apache::lonhomework::analyze{"$part_id.type"} = 'radiobuttonresponse'; + push( @{ $Apache::lonhomework::analyze{"parts"} }, $part_id ); + } + return $result; } sub end_radiobuttonresponse { + my ( $target, $token, $tagstack, $parstack, $parser, $safeeval, $style ) = + @_; + my $result; + if ( $target eq 'edit' ) { $result = &Apache::edit::end_table(); } + if ( $target eq 'tex' ) { + if ( $env{'form.pdfFormFields'} eq 'yes' + and $Apache::inputtags::status[-1] eq 'CAN_ANSWER' ) + { + $result .= '\end{itemize}'; + } + else { + $result .= '\end{enumerate}'; + } + } + &Apache::response::end_response; + pop @Apache::lonxml::namespace; + &Apache::lonxml::deregister( 'Apache::radiobuttonresponse', + ( 'foilgroup', 'foil', 'conceptgroup' ) ); + undef(%Apache::response::foilnames); + return $result; } -%Apache::response::foilgroup={}; +%Apache::response::foilgroup = (); + sub start_foilgroup { - %Apache::response::foilgroup={}; + my ( $target, $token, $tagstack, $parstack, $parser, $safeeval, $style ) = + @_; + %Apache::response::foilgroup = (); + $Apache::radiobuttonresponse::conceptgroup = 0; + &Apache::response::pushrandomnumber( undef, $target ); + return; +} + +sub storesurvey { + my ($style) = @_; + if ( !&Apache::response::submitted() ) { return ''; } + my $response = $env{ 'form.HWVAL_' . $Apache::inputtags::response['-1'] }; + &Apache::lonxml::debug("Here I am!:$response:"); + if ( $response !~ /[0-9]+/ ) { return ''; } + my $part = $Apache::inputtags::part; + my $id = $Apache::inputtags::response['-1']; + my @whichfoils = @{ $Apache::response::foilgroup{'names'} }; + my %responsehash; + $responsehash{ $whichfoils[$response] } = $response; + my $responsestr = &Apache::lonnet::hash2str(%responsehash); + $Apache::lonhomework::results{"resource.$part.$id.submission"} = + $responsestr; + my %previous = + &Apache::response::check_for_previous( $responsestr, $part, $id ); + my $ad; + + if ( $style eq 'anonsurvey' ) { + $ad = $Apache::lonhomework::results{"resource.$part.$id.awarddetail"} = + 'ANONYMOUS'; + } + elsif ( $style eq 'anonsurveycred' ) { + $ad = $Apache::lonhomework::results{"resource.$part.$id.awarddetail"} = + 'ANONYMOUS_CREDIT'; + } + elsif ( $style eq 'surveycred' ) { + $ad = $Apache::lonhomework::results{"resource.$part.$id.awarddetail"} = + 'SUBMITTED_CREDIT'; + } + else { + $ad = $Apache::lonhomework::results{"resource.$part.$id.awarddetail"} = + 'SUBMITTED'; + } + &Apache::response::handle_previous( \%previous, $ad ); + &Apache::lonxml::debug("submitted a $response
\n"); + return ''; +} + +sub grade_response { + my ( $answer, $whichfoils, $bubbles_per_line ) = @_; + + if ( !&Apache::response::submitted() ) { return; } + my $response; + + if ( $env{'form.submitted'} eq 'scantron' ) { + $response = + &Apache::response::getresponse( 1, undef, + &bubble_line_count( scalar( @{$whichfoils} ), $bubbles_per_line ), + $bubbles_per_line ); + + } + else { + $response = $env{ 'form.HWVAL_' . $Apache::inputtags::response['-1'] }; + } + + if ( $response !~ /[0-9]+/ ) { return; } + my $part = $Apache::inputtags::part; + my $id = $Apache::inputtags::response['-1']; + my %responsehash; + $responsehash{ $whichfoils->[$response] } = $response; + my $responsestr = &Apache::lonnet::hash2str(%responsehash); + my %previous = + &Apache::response::check_for_previous( $responsestr, $part, $id ); + $Apache::lonhomework::results{"resource.$part.$id.submission"} = + $responsestr; + &Apache::lonxml::debug("submitted a $response
\n"); + my $ad; + + if ( $response == $answer ) { + $ad = 'EXACT_ANS'; + } + else { + $ad = 'INCORRECT'; + } + $Apache::lonhomework::results{"resource.$part.$id.awarddetail"} = $ad; + &Apache::response::handle_previous( \%previous, $ad ); } sub end_foilgroup { - my ($target,$token,$parstack,$parser,$safeeval,$style)=@_; - my $name; - my $result; - foreach $name ($Apache::response::foilgroup{'names'}) { - $result.="
$name is $Apache::response::foilgroup{$name.'.value'} "; - } - return $result; + my ( $target, $token, $tagstack, $parstack, $parser, $safeeval, $style ) = + @_; + + my $result; + my $bubble_lines; + my $answer_count; + my $id = $Apache::inputtags::response['-1']; + my $part = $Apache::inputtags::part; + my $bubbles_per_line = &getbubblesnum( $part, $id ); + + if ( $target eq 'grade' + || $target eq 'web' + || $target eq 'answer' + || $target eq 'tex' + || $target eq 'analyze' ) + { + my $style = $Apache::lonhomework::type; + my $direction = + &Apache::lonxml::get_param( 'direction', $parstack, $safeeval, '-2' ); + if ( + ( + ( $style eq 'survey' ) + || ( $style eq 'surveycred' ) + || ( $style eq 'anonsurvey' ) + || ( $style eq 'anonsurveycred' ) + ) + && ( $target ne 'analyze' ) + ) + { + if ( $target eq 'web' || $target eq 'tex' ) { + $result = &displayallfoils( $direction, $target ); + } + elsif ( $target eq 'answer' ) { + $result = &displayallanswers(); + } + elsif ( $target eq 'grade' ) { + $result = &storesurvey($style); + } + $answer_count = + scalar( @{ $Apache::response::foilgroup{'names'} } ); + + } + else { + + my $name; + my $max = + &Apache::lonxml::get_param( 'max', $parstack, $safeeval, '-2' ); + my $randomize = + &Apache::lonxml::get_param( 'randomize', $parstack, $safeeval, + '-2' ); + my ( $answer, @shown ) = &whichfoils( $max, $randomize ); + $answer_count = scalar(@shown); + + if ( $target eq 'web' || $target eq 'tex' ) { + $result = + &displayfoils( $target, $answer, \@shown, $direction, + $bubbles_per_line ); + } + elsif ( $target eq 'answer' ) { + $result = + &displayanswers( $answer, \@shown, $bubbles_per_line ); + } + elsif ( $target eq 'grade' ) { + &grade_response( $answer, \@shown, $bubbles_per_line ); + } + elsif ( $target eq 'analyze' ) { + my $bubble_lines = + &bubble_line_count( $answer_count, $bubbles_per_line ); + &Apache::response::analyze_store_foilgroup( \@shown, + [ 'text', 'value', 'location' ] ); + my $part_id = "$part.$id"; + push( + @{ $Apache::lonhomework::analyze{"$part_id.options"} }, + ( 'true', 'false' ) + ); + + } + } + $Apache::lonxml::post_evaluate = 0; + } + if ( $target eq 'web' ) { + &Apache::response::setup_prior_tries_hash( \&format_prior_answer, + [ \%Apache::response::foilgroup ] ); + } + &Apache::response::poprandomnumber(); + $bubble_lines = &bubble_line_count( $answer_count, $bubbles_per_line ); + &Apache::lonxml::increment_counter( $bubble_lines, "$part.$id" ); + if ( $target eq 'analyze' ) { + &Apache::lonhomework::set_bubble_lines(); + } + return $result; +} + +sub getbubblesnum { + my ( $part, $id ) = @_; + my $bubbles_per_line; + my $default_numbubbles = $default_bubbles_per_line; + if ( ( $env{'form.bubbles_per_row'} =~ /^\d+$/ ) + && ( $env{'form.bubbles_per_row'} > 0 ) ) + { + $default_numbubbles = $env{'form.bubbles_per_row'}; + } + $bubbles_per_line = &Apache::response::get_response_param( $part . "_$id", + 'numbubbles', $default_numbubbles ); + return $bubbles_per_line; +} + +sub getfoilcounts { + my @names; + my $truecnt = 0; + my $falsecnt = 0; + my $name; + if ( $Apache::response::foilgroup{'names'} ) { + @names = @{ $Apache::response::foilgroup{'names'} }; + } + foreach $name (@names) { + if ( $Apache::response::foilgroup{ $name . '.value' } eq 'true' ) { + $truecnt++; + } + elsif ( $Apache::response::foilgroup{ $name . '.value' } eq 'false' ) { + $falsecnt++; + } + } + return ( $truecnt, $falsecnt ); +} + +sub format_prior_answer { + my ( $mode, $answer, $other_data ) = @_; + my $foil_data = $other_data->[0]; + my %response = &Apache::lonnet::str2hash($answer); + my ($name) = keys(%response); + return + '' + . $foil_data->{ $name . '.text' } + . ''; + +} + +sub displayallfoils { + my ( $direction, $target ) = @_; + my $result; + &Apache::lonxml::debug("survey style display"); + my @names; + if ( $Apache::response::foilgroup{'names'} ) { + @names = @{ $Apache::response::foilgroup{'names'} }; + } + + my $temp = 0; + my $i = 0; + my $id = $Apache::inputtags::response['-1']; + my $part = $Apache::inputtags::part; + my ( $lastresponse, $newvariation, $showanswer ); + if ( + ( + ( + $Apache::lonhomework::history{"resource.$part.type"} eq + 'randomizetry' + ) + || ( $Apache::lonhomework::type eq 'randomizetry' ) + ) + && ( $Apache::inputtags::status[-1] eq 'CAN_ANSWER' ) + ) + { + if ( $env{ 'form.' . $part . '.rndseed' } ne + $Apache::lonhomework::history{"resource.$part.rndseed"} ) + { + $newvariation = 1; + } + } + $showanswer = &Apache::response::show_answer(); + unless ( + ( + ( + $Apache::lonhomework::history{"resource.$part.type"} eq + 'anonsurvey' + ) + || ( $Apache::lonhomework::history{"resource.$part.type"} eq + 'anonsurveycred' ) + ) + && ( defined( $env{'form.grade_symb'} ) ) + || ( $newvariation && !$showanswer ) + ) + { + $lastresponse = + $Apache::lonhomework::history{"resource.$part.$id.submission"}; + } + if ( $direction eq 'horizontal' ) { $result .= ''; } + my %lastresponse = &Apache::lonnet::str2hash($lastresponse); + if ($showanswer) { + foreach my $name (@names) { + if ( $Apache::response::foilgroup{ $name . '.value' } ne 'unused' ) + { + if ( ( $direction eq 'horizontal' ) && ( $target ne 'tex' ) ) { + $result .= ""; + } + } + } + } + else { + foreach my $name (@names) { + if ( $Apache::response::foilgroup{ $name . '.value' } ne 'unused' ) + { + if ( $direction eq 'horizontal' ) { + $result .= ""; + } + } + else { + $result .= '\vskip 0 mm '; + } + } + } + } + + if ( ( $direction eq 'horizontal' ) && ( $target ne 'tex' ) ) { + $result .= '
"; + } + else { + if ( $target eq 'tex' ) { + $result .= '\item \vskip -2mm '; + } + else { + $result .= "
"; + } + } + if ( defined( $lastresponse{$name} ) ) { + if ( $target eq 'tex' ) { + $result .= '}'; + } + else { + $result .= ''; + } + } + $result .= $Apache::response::foilgroup{ $name . '.text' }; + if ( defined( $lastresponse{$name} ) && ( $target ne 'tex' ) ) { + $result .= ''; + } + if ( ( $direction eq 'horizontal' ) && ( $target ne 'tex' ) ) { + $result .= "		"; + } + else { + if ( $target eq 'tex' ) { + if ( $env{'form.pdfFormFields'} eq 'yes' + && $Apache::inputtags::status[-1] eq 'CAN_ANSWER' ) + { + my $fieldname = + $env{'request.symb'} + . '&part_' + . $Apache::inputtags::part + . '&radiobuttonresponse' + . '&HWVAL_' + . $Apache::inputtags::response['-1']; + $result .= '\item[{' + . &Apache::lonxml::print_pdf_radiobutton( + $fieldname, $temp ) + . '}]' + . $Apache::response::foilgroup{ $name . '.text' } + . "\n"; + } + else { + $result .= '\item \vskip -2mm '; + } + } + else { + $result .= "
"; + } + } + if ( $target eq 'tex' ) { + if ( $env{'form.pdfFormFields'} ne 'yes' + or $Apache::inputtags::status[-1] ne 'CAN_ANSWER' ) + { + $result .= + '$\bigcirc$' + . $Apache::response::foilgroup{ $name . '.text' } + . '\\\\'; #' stupid emacs + } + $i++; + } + else { + $result .= '
'; + } + return $result; +} + +sub whichfoils { + my ( $max, $randomize ) = @_; + + my @truelist; + my @falselist; + my @whichfalse = (); + my ( $truecnt, $falsecnt ) = &getfoilcounts(); + my $count = 0; + + # we will add in 1 of the true statements + if ( $max > 0 && ( $falsecnt + 1 ) > $max ) { $count = $max } + else { $count = $falsecnt + 1; $max = $count; } + my $answer = int( &Math::Random::random_uniform() * ($count) ); + &Apache::lonxml::debug("Count is $count, $answer is $answer"); + my @names; + if ( $Apache::response::foilgroup{'names'} ) { + @names = @{ $Apache::response::foilgroup{'names'} }; + } + if ( &Apache::response::showallfoils() ) { + @whichfalse = @names; + } + elsif ( $randomize eq 'no' ) { + &Apache::lonxml::debug("No randomization"); + my $havetrue = 0; + foreach my $name (@names) { + if ( $Apache::response::foilgroup{ $name . '.value' } eq 'true' ) { + if ( !$havetrue ) { + push( @whichfalse, $name ); + $havetrue++; + $answer = $#whichfalse; + } + } + elsif ( + $Apache::response::foilgroup{ $name . '.value' } eq 'false' ) + { + push( @whichfalse, $name ); + } + elsif ( + $Apache::response::foilgroup{ $name . '.value' } eq 'unused' ) + { + } + else { + &Apache::lonxml::error( + &HTML::Entities::encode( +"No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in ", + '<>&"' + ) + ); + } + } + if ( ( !$havetrue ) + && ( $Apache::lonhomework::type ne 'survey' ) + && ( $Apache::lonhomework::type ne 'surveycred' ) + && ( $Apache::lonhomework::type ne 'anonsurvey' ) + && ( $Apache::lonhomework::type ne 'anonsurveycred' ) ) + { + &Apache::lonxml::error( + &mt('There are no true statements available.') . '
' ); + } + } + else { + my $current = 0; + &Apache::lonhomework::showhash(%Apache::response::foilgroup); + my ( %top, %bottom ); + + #first find out where everyone wants to be + foreach my $name (@names) { + $current++; + if ( $Apache::response::foilgroup{ $name . '.value' } eq 'true' ) { + push( @truelist, $name ); + if ( $Apache::response::foilgroup{ $name . '.location' } eq + 'top' ) + { + $top{$name} = $current; + } + elsif ( $Apache::response::foilgroup{ $name . '.location' } eq + 'bottom' ) + { + $bottom{$name} = $current; + } + } + elsif ( + $Apache::response::foilgroup{ $name . '.value' } eq 'false' ) + { + push( @falselist, $name ); + if ( $Apache::response::foilgroup{ $name . '.location' } eq + 'top' ) + { + $top{$name} = $current; + } + elsif ( $Apache::response::foilgroup{ $name . '.location' } eq + 'bottom' ) + { + $bottom{$name} = $current; + } + } + elsif ( + $Apache::response::foilgroup{ $name . '.value' } eq 'unused' ) + { + } + else { + &Apache::lonxml::error( + &HTML::Entities::encode( +"No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in ", + '<>&"' + ) + ); + } + } + + #pick a true statement + my $notrue = 0; + if ( scalar(@truelist) == 0 ) { $notrue = 1; } + my $whichtrue = + int( &Math::Random::random_uniform() * ( $#truelist + 1 ) ); + &Apache::lonxml::debug( + "Max is $max, From $#truelist elms, picking $whichtrue"); + my ( @toplist, @bottomlist ); + my $topcount = 0; + my $bottomcount = 0; + + # assign everyone to either toplist/bottomlist or whichfalse + # which false is randomized, toplist bottomlist are in order + while (( ( $#whichfalse + $topcount + $bottomcount ) < $max - 2 ) + && ( $#falselist > -1 ) ) + { + &Apache::lonxml::debug("Have $#whichfalse max is $max"); + my $afalse = + int( &Math::Random::random_uniform() * ( $#falselist + 1 ) ); + &Apache::lonxml::debug("From $#falselist elms, picking $afalse"); + $afalse = splice( @falselist, $afalse, 1 ); + &Apache::lonxml::debug("Picked $afalse"); + &Apache::lonhomework::showhash( ( 'names' => \@names ) ); + &Apache::lonhomework::showhash(%top); + if ( $top{$afalse} ) { + $toplist[ $top{$afalse} ] = $afalse; + $topcount++; + } + elsif ( $bottom{$afalse} ) { + $bottomlist[ $bottom{$afalse} ] = $afalse; + $bottomcount++; + } + else { + push( @whichfalse, $afalse ); + } + } + &Apache::lonxml::debug("Answer wants $answer"); + my $truename = $truelist[$whichtrue]; + my $dosplice = 1; + if ( ($notrue) + && ( $Apache::lonhomework::type ne 'survey' ) + && ( $Apache::lonhomework::type ne 'surveycred' ) + && ( $Apache::lonhomework::type ne 'anonsurvey' ) + && ( $Apache::lonhomework::type ne 'anonsurveycred' ) ) + { + $dosplice = 0; + &Apache::lonxml::error( + &mt('There are no true statements available.') . '
' ); + } + + #insert the true statement, keeping track of where it wants to be + if ( $Apache::response::foilgroup{ $truename . '.location' } eq 'top' + && $dosplice ) + { + $toplist[ $top{$truename} ] = $truename; + $answer = -1; + foreach my $top ( reverse(@toplist) ) { + if ($top) { $answer++; } + if ( $top eq $truename ) { last; } + } + $dosplice = 0; + } + elsif ( + $Apache::response::foilgroup{ $truename . '.location' } eq 'bottom' + && $dosplice ) + { + $bottomlist[ $bottom{$truename} ] = $truename; + $answer = -1; + foreach my $bot (@bottomlist) { + if ($bot) { $answer++; } + if ( $bot eq $truename ) { last; } + } + $answer += $topcount + $#whichfalse + 1; + $dosplice = 0; + } + else { + if ( $topcount > 0 || $bottomcount > 0 ) { + my $inc = 1; + if ( ( $bottomcount > 0 ) + && ( $Apache::lonhomework::type ne 'exam' ) ) + { + $inc = 2; + } + $answer = int( + &Math::Random::random_uniform() * ( $#whichfalse + $inc ) ) + + $topcount; + } + } + &Apache::lonxml::debug("Answer now wants $answer"); + + #add the top items to the top, bottom items to the bottom + for ( my $i = 0 ; $i <= $#toplist ; $i++ ) { + if ( $toplist[$i] ) { unshift( @whichfalse, $toplist[$i] ) } + } + for ( my $i = 0 ; $i <= $#bottomlist ; $i++ ) { + if ( $bottomlist[$i] ) { push( @whichfalse, $bottomlist[$i] ) } + } + + #if the true statement is randomized insert it into the list + if ($dosplice) { + splice( @whichfalse, $answer, 0, $truelist[$whichtrue] ); + } + } + &Apache::lonxml::debug("Answer is $answer"); + return ( $answer, @whichfalse ); +} + +sub displayfoils { + my ( $target, $answer, $whichfoils, $direction, $bubbles_per_line ) = @_; + my $result; + + my $part = $Apache::inputtags::part; + my $solved = $Apache::lonhomework::history{"resource.$part.solved"}; + if ( ( $target ne 'tex' ) + && &Apache::response::show_answer() ) + { + if ( $direction eq 'horizontal' ) { + if ( $target ne 'tex' ) { + $result .= ''; + } + } + foreach my $name ( @{$whichfoils} ) { + if ( $direction eq 'horizontal' ) { + if ( $target ne 'tex' ) { $result .= ''; } + } + } + if ( $direction eq 'horizontal' ) { + if ( $target ne 'tex' ) { + $result .= '
'; } + } + if ( $target ne 'tex' ) { + $result .= "
"; + } + else { + $result .= '\item \vskip -2 mm '; + } + if ( $Apache::response::foilgroup{ $name . '.value' } eq 'true' ) { + if ( $target ne 'tex' ) { + $result .= &mt('Correct:') . ''; + } + else { + $result .= &mt('Correct:') . ' \textbf{'; + } + } + else { + $result .= &mt('Incorrect:'); + } + if ( $target eq 'web' ) { $result .= ""; } + if ( $Apache::response::foilgroup{ $name . '.value' } eq 'true' ) { + if ( $target ne 'tex' ) { $result .= ''; } + else { $result .= '}'; } + } + if ( $direction eq 'horizontal' ) { + if ( $target ne 'tex' ) { $result .= '
'; + } + } + } + else { + my @alphabet = ( 'A' .. 'Z' ); + my $i = 0; + my $bubble_number = 0; + my $line = 0; + my $temp = 0; + my $id = $Apache::inputtags::response['-1']; + my $part = $Apache::inputtags::part; + my ( $lastresponse, $newvariation ); + + if ( + ( + ( + $Apache::lonhomework::history{"resource.$part.type"} eq + 'randomizetry' + ) + || ( $Apache::lonhomework::type eq 'randomizetry' ) + ) + && ( $Apache::inputtags::status[-1] eq 'CAN_ANSWER' ) + ) + { + + if ( $env{ 'form.' . $part . '.rndseed' } ne + $Apache::lonhomework::history{"resource.$part.rndseed"} ) + { + $newvariation = 1; + } + } + unless ($newvariation) { + $lastresponse = + $Apache::lonhomework::history{"resource.$part.$id.submission"}; + } + my %lastresponse = &Apache::lonnet::str2hash($lastresponse); + if ( $target ne 'tex' && $direction eq 'horizontal' ) { + $result .= ""; + } + my $numlines; + if ( ( $target eq 'tex' ) && ( $Apache::lonhomework::type eq 'exam' ) ) + { + my $numitems = scalar( @{$whichfoils} ); + $numlines = int( $numitems / $bubbles_per_line ); + if ( ( $numitems % $bubbles_per_line ) != 0 ) { + $numlines++; + } + if ( $numlines < 1 ) { + $numlines = 1; + } + if ( $numlines > 1 ) { + my $linetext; + for ( my $i = 0 ; $i < $numlines ; $i++ ) { + $linetext .= $Apache::lonxml::counter + $i . ', '; + } + $linetext =~ s/,\s$//; + $result .= + '\item[\small {\textbf{' + . $linetext . '}}]' + . ' {\footnotesize ' + . &mt( '(Bubble once in [_1] lines)', $numlines ) + . '} \hspace*{\fill} \\\\'; + } + else { + $result .= '\item[\textbf{' . $Apache::lonxml::counter . '}.]'; + } + } + foreach my $name ( @{$whichfoils} ) { + if ( $target ne 'tex' ) { + if ( $direction eq 'horizontal' ) { + $result .= ""; + } + $temp++; + } + if ( $target ne 'tex' && $direction eq 'horizontal' ) { + $result .= "
"; + } + else { + $result .= "
"; + } + } + if ( $target ne 'tex' ) { + $result .= '
"; + } + } + if ( $target ne 'tex' ) { + if ( $direction ne 'horizontal' ) { $result .= "
"; } + } + else { $result .= '\vskip 0 mm '; } + return $result; +} + +sub displayallanswers { + my @names; + if ( $Apache::response::foilgroup{'names'} ) { + @names = @{ $Apache::response::foilgroup{'names'} }; + } + my $result = &Apache::response::answer_header('radiobuttonresponse'); + foreach my $name (@names) { + $result .= + &Apache::response::answer_part( 'radiobuttonresponse', + $Apache::response::foilgroup{ $name . '.value' } ); + } + $result .= &Apache::response::answer_footer('radiobuttonresponse'); + return $result; +} + +sub displayanswers { + my ( $answer, $whichopt, $bubbles_per_line ) = @_; + my $result; + + if ( $Apache::lonhomework::type eq 'exam' ) { + my $line = int( $answer / $bubbles_per_line ); + my $correct = ( 'A' .. 'Z' )[ $answer % $bubbles_per_line ]; + $result .= + &Apache::response::answer_header( 'radiobuttonresponse', $line ); + $result .= + &Apache::response::answer_part( 'radiobuttonresponse', $correct ); + } + else { + $result .= &Apache::response::answer_header('radiobuttonresponse'); + } + foreach my $name ( @{$whichopt} ) { + $result .= + &Apache::response::answer_part( 'radiobuttonresponse', + $Apache::response::foilgroup{ $name . '.value' } ); + } + $result .= &Apache::response::answer_footer('radiobuttonresponse'); + return $result; +} + +sub start_conceptgroup { + my ( $target, $token, $tagstack, $parstack, $parser, $safeeval, $style ) = + @_; + $Apache::radiobuttonresponse::conceptgroup = 1; + %Apache::response::conceptgroup = (); + my $result; + if ( $target eq 'edit' ) { + $result .= &Apache::edit::tag_start( $target, $token ); + $result .= + &Apache::edit::text_arg( 'Concept:', 'concept', $token, '50' ) + . &Apache::edit::end_row() + . &Apache::edit::start_spanning_row(); + } + elsif ( $target eq 'modified' ) { + my $constructtag = + &Apache::edit::get_new_args( $token, $parstack, $safeeval, + 'concept' ); + if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); } + } + return $result; +} + +sub end_conceptgroup { + my ( $target, $token, $tagstack, $parstack, $parser, $safeeval, $style ) = + @_; + $Apache::radiobuttonresponse::conceptgroup = 0; + my $result; + if ( $target eq 'web' + || $target eq 'grade' + || $target eq 'answer' + || $target eq 'tex' + || $target eq 'analyze' ) + { + &Apache::response::pick_foil_for_concept( $target, + [ 'value', 'text', 'location' ], + \%Apache::hint::radiobutton, $parstack, $safeeval ); + } + elsif ( $target eq 'edit' ) { + $result = &Apache::edit::end_table(); + } + return $result; +} + +sub insert_conceptgroup { + my $result = + "\n\t\t" + . &insert_foil() + . "\n\t\t\n"; + return $result; } sub start_foil { - $Apache::lonxml::redirection++; + my ( $target, $token, $tagstack, $parstack, $parser, $safeeval, $style ) = + @_; + my $result = ''; + if ( $target eq 'web' || $target eq 'tex' || $target eq 'analyze' ) { + &Apache::lonxml::startredirection; + if ( $target eq 'analyze' ) { + &Apache::response::check_if_computed( $token, $parstack, $safeeval, + 'value' ); + } + } + elsif ( $target eq 'edit' ) { + $result = &Apache::edit::tag_start( $target, $token ); + $result .= &Apache::edit::text_arg( 'Name:', 'name', $token ); + $result .= &Apache::edit::select_or_text_arg( + 'Correct Option:', 'value', + [ 'unused', 'true', 'false' ], $token + ); + my $randomize = + &Apache::lonxml::get_param( 'randomize', $parstack, $safeeval, '-3' ); + if ( $randomize ne 'no' ) { + $result .= + &Apache::edit::select_arg( 'Location:', 'location', + [ 'random', 'top', 'bottom' ], $token ); + } + $result .= + &Apache::edit::end_row() . &Apache::edit::start_spanning_row(); + } + elsif ( $target eq 'modified' ) { + my $constructtag = + &Apache::edit::get_new_args( $token, $parstack, $safeeval, 'value', + 'name', 'location' ); + if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); } + } + return $result; } sub end_foil { - my ($target,$token,$parstack,$parser,$safeeval,$style)=@_; - my $args =''; - if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; } - my $name = &Apache::run::run("{$args;".'return $name}',$safeeval); - push @{ $Apache::response::foilgroup{'names'} }, $name; - my $value = &Apache::run::run("{$args;".'return $value}',$safeeval); - $Apache::response::foilgroup{"$name.value"} = $value; - $Apache::response::foilgroup{"$name.text"} = $Apache::lonxml::outputstack; - $Apache::lonxml::redirection--; - return ''; + my ( $target, $token, $tagstack, $parstack, $parser, $safeeval, $style ) = + @_; + my $text = ''; + if ( $target eq 'web' || $target eq 'tex' || $target eq 'analyze' ) { + $text = &Apache::lonxml::endredirection; + } + if ( $target eq 'web' + || $target eq 'grade' + || $target eq 'answer' + || $target eq 'tex' + || $target eq 'analyze' ) + { + my $value = &Apache::lonxml::get_param( 'value', $parstack, $safeeval ); + if ( $value ne 'unused' ) { + my $name = + &Apache::lonxml::get_param( 'name', $parstack, $safeeval ); + if ( $name eq "" ) { + &Apache::lonxml::warning( + &mt( +'Foils without names exist. This can cause problems to malfunction.' + ) + ); + $name = $Apache::lonxml::curdepth; + } + if ( defined( $Apache::response::foilnames{$name} ) ) { + &Apache::lonxml::error( + &mt( +'Foil name [_1] appears more than once. Foil names need to be unique.', + '' . $name . '' + ) + ); + } + $Apache::response::foilnames{$name}++; + my $location = + &Apache::lonxml::get_param( 'location', $parstack, $safeeval ); + if ( $Apache::radiobuttonresponse::conceptgroup + && !&Apache::response::showallfoils() ) + { + push @{ $Apache::response::conceptgroup{'names'} }, $name; + $Apache::response::conceptgroup{"$name.value"} = $value; + $Apache::response::conceptgroup{"$name.text"} = $text; + $Apache::response::conceptgroup{"$name.location"} = $location; + } + else { + push @{ $Apache::response::foilgroup{'names'} }, $name; + $Apache::response::foilgroup{"$name.value"} = $value; + $Apache::response::foilgroup{"$name.text"} = $text; + $Apache::response::foilgroup{"$name.location"} = $location; + } + } + } + return ''; +} + +sub insert_foil { + return ' + + + +'; } 1; __END__ + + + +=head1 NAME + +Apache::radiobuttonresponse + +=head1 SYNOPSIS + +Handles multiple-choice style responses. + +This is part of the LearningOnline Network with CAPA project +described at http://www.lon-capa.org. + +=head1 SUBROUTINES + +=over + +=item start_radiobuttonresponse() + +=item bubble_line_count() + +=item end_radiobuttonresponse() + +=item start_foilgroup() + +=item storesurvey() + +=item grade_response() + +=item end_foilgroup() + +=item getfoilcounts() + +=item format_prior_answer() + +=item displayallfoils() + +=item &whichfoils($max,$randomize) + +Randomizes the list of foils. +Respects + - each foils desire to be randomized + - the existance of Concept groups of foils (select 1 foil from each) + - and selects a single correct statement from all possilble true statments + - and limits it to a toal of $max foils + +WARNING: this routine uses the random number generator, it should only +be called once per target, otherwise it can cause randomness changes in +homework problems. + +Arguments + $max - maximum number of foils to select (including the true one) + (so a max of 5 is: 1 true, 4 false) + + $randomize - whether to randomize the listing of foils, by default + will randomize, only if randomize is 'no' will it not + +Returns + $answer - location in the array of the correct answer + @foils - array of foil names in to display order + +=item displayfoils() + +=item displayallanswers() + +=item displayanswers() + +=item start_conceptgroup() + +=item end_conceptgroup() + +=item insert_conceptgroup() + +=item start_foil() + +=item end_foil() + +=item insert_foil() + +=back + +=cut