--- loncom/homework/radiobuttonresponse.pm 2010/12/19 04:24:29 1.147 +++ loncom/homework/radiobuttonresponse.pm 2012/02/05 16:11:57 1.153.6.10 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # mutliple choice style responses # -# $Id: radiobuttonresponse.pm,v 1.147 2010/12/19 04:24:29 raeburn Exp $ +# $Id: radiobuttonresponse.pm,v 1.153.6.10 2012/02/05 16:11:57 foxr Exp $ # # Copyright Michigan State University Board of Trustees # @@ -25,816 +25,1504 @@ # http://www.lon-capa.org/ # - - package Apache::radiobuttonresponse; use strict; use HTML::Entities(); use Apache::lonlocal; use Apache::lonnet; use Apache::response; +use Apache::caparesponse; my $default_bubbles_per_line = 10; +my @alphabet = ( 'A' .. 'Z' ); # Foil labels. + BEGIN { - &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse')); + &Apache::lonxml::register( 'Apache::radiobuttonresponse', + ('radiobuttonresponse') ); } +#--------------------------------------------------------------------------- +# +# Generic utility subs. + sub bubble_line_count { - my ($numfoils, $bubbles_per_line) = @_; + my ( $numfoils, $bubbles_per_line ) = @_; my $bubble_lines; - $bubble_lines = int($numfoils / $bubbles_per_line); - if (($numfoils % $bubbles_per_line) != 0) { - $bubble_lines++; + $bubble_lines = int( $numfoils / $bubbles_per_line ); + if ( ( $numfoils % $bubbles_per_line ) != 0 ) { + $bubble_lines++; } return $bubble_lines; - + } +#------------------------------------------------------------------------------ +# +# XML handlers. sub start_radiobuttonresponse { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + 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::lonxml::register( 'Apache::radiobuttonresponse', + ( 'foilgroup', 'foil', 'conceptgroup' ) ); + push( @Apache::lonxml::namespace, 'radiobuttonresponse' ); + my $id = &Apache::response::start_response( $parstack, $safeeval ); - %Apache::hint::radiobutton=(); + %Apache::hint::radiobutton = (); undef(%Apache::response::foilnames); - if ($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}'; + 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' ) { + $result .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}'; } - } elsif ($target eq 'analyze') { - my $part_id="$Apache::inputtags::part.$id"; + 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}.}'; + } + + } + 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); + push( @{ $Apache::lonhomework::analyze{"parts"} }, $part_id ); } return $result; } sub end_radiobuttonresponse { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + 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}'; - } - } + if ( $target eq 'edit' ) { $result = &Apache::edit::end_table(); } + &Apache::response::end_response; pop @Apache::lonxml::namespace; - &Apache::lonxml::deregister('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup')); + &Apache::lonxml::deregister( 'Apache::radiobuttonresponse', + ( 'foilgroup', 'foil', 'conceptgroup' ) ); undef(%Apache::response::foilnames); return $result; } -%Apache::response::foilgroup=(); +%Apache::response::foilgroup = (); + sub start_foilgroup { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; - my $result; - %Apache::response::foilgroup=(); - $Apache::radiobuttonresponse::conceptgroup=0; - &Apache::response::pushrandomnumber(undef,$target); - if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') { - $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]'; - } - return $result; + 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']}; + 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'} }; + 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); + $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'; + + 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::response::handle_previous( \%previous, $ad ); &Apache::lonxml::debug("submitted a $response
\n"); return ''; } - sub grade_response { - my ($answer, $whichfoils, $bubbles_per_line)=@_; + 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 ( $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']; + 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; + $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'; + + if ( $response == $answer ) { + $ad = 'EXACT_ANS'; + } + else { + $ad = 'INCORRECT'; } - $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad; - &Apache::response::handle_previous(\%previous,$ad); + $Apache::lonhomework::results{"resource.$part.$id.awarddetail"} = $ad; + &Apache::response::handle_previous( \%previous, $ad ); } sub end_foilgroup { - my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; + my ( $target, $token, $tagstack, $parstack, $parser, $safeeval, $style ) = + @_; my $result; my $bubble_lines; - my $bubbles_per_line; my $answer_count; - my $id = $Apache::inputtags::response['-1']; - my $part = $Apache::inputtags::part; - $bubbles_per_line = - &Apache::response::get_response_param($Apache::inputtags::part."_$id", - 'numbubbles', - $default_bubbles_per_line); - - - if ($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'}}); + 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 { + } + 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')); + 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; + } + } + $Apache::lonxml::post_evaluate = 0; } - if ($target eq 'web') { - &Apache::response::setup_prior_tries_hash(\&format_prior_answer, - [\%Apache::response::foilgroup]); + 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(); + $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 $truecnt = 0; + my $falsecnt = 0; my $name; if ( $Apache::response::foilgroup{'names'} ) { - @names= @{ $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++; - } + if ( $Apache::response::foilgroup{ $name . '.value' } eq 'true' ) { + $truecnt++; + } + elsif ( $Apache::response::foilgroup{ $name . '.value' } eq 'false' ) { + $falsecnt++; + } } - return ($truecnt,$falsecnt); + return ( $truecnt, $falsecnt ); } sub format_prior_answer { - my ($mode,$answer,$other_data) = @_; + 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'}.''; + 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'} }; - } +## +# Return the last survey response. The logic is slightly different than that of +# get_last_responses. TODO: See if there are chunks of code betweenthis and +# get_last_reponses that are common and can be factored. +# +# @param $part - Problem part under consideration. +# @param $showanswer - True if answers should be shown. +# @param $id - Problem id. +# +# @return hash reference. +# @retval reference to the has indexed by answer selection that +# indicates the most recent answer. +# +sub get_last_survey_response { + my ($part, $showanswer, $id) = @_; + + my $newvariation; + my $lastresponse; # stringified last response. - my $temp=0; - my $i =0; - my $id=$Apache::inputtags::response['-1']; - my $part=$Apache::inputtags::part; - my $lastresponse; - my ($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"}) { + 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"}; + 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')) { - $result.=""; } + my %lastresponse = &Apache::lonnet::str2hash($lastresponse); + + + return \%lastresponse; + +} +## +# Removes the names from a foil group that are marked as unused. +# +# @param $names - reference to the array of names to filter. +# +# @return arrayref +# @retval reference to the filtered array. +# +sub remove_unused { + my ($names) = @_; + my @result; + + foreach my $name (@{$names}) { + if ($Apache::response::foilgroup{$name . '.value'} ne 'unused') { + push(@result, $name); + } + } + return \@result; +} +## +# Displays all foils in a survey type problem for HTML rendition. +# TODO: See if there is any logic in this sub that can be shared +# with display_foils_html +# +# @param $names - ref to array of names of the foils to display. +# @param $part - Problem part number. +# @param $showanswer - If true, show the answers. +# @param $lastresponse - Ref to the last response hash. +# @param $direction - Display direction of the radiobuttons. +# +# @return string +# @retval HTML required to display the resource in a browser. +# +sub display_survey_html { + my ($names, $part, $showanswer, $lastresponse, $direction) = @_; + my $result; + + # Figure out a few fragments of html that depend onthe + # orientation of the radiobuttons: + # closing_html - HTML to emit at the end of the resource. + # pre_foil - HTML to emit prior to each foil. + # post_foil - HTML to emit following each foil. + # + # The opening HTML is just added to the $result now + # + # Figuring these outin advance compresses the loop over foils into something + # pretty simple: + # + # NOTE: There's probably a really cool way to do this with style sheets + # and picking the selector based on the orientation, if someone wants to puzzle + # that out. In that case, probably the whole thing lives in a
and each + # foil lives in a

+ # + + + my ($opening_html, $closing_html, $pre_foil, $post_foil) = + &html_direction_fragments($direction); + + $result = $opening_html; + + # Different rendering depending on whether answers are shown: + # I played with different factorings but this seems the most concise/clear... + # although I don't like the $showanswer conditino inside the loop. Other things I tried + # - two loops..much longer code..no gain in clarity. + # - Using a visitor patttern passing it the rendering code chunklets and + # an anonymous hash reference for state data etc. Very cool but + # quite a bit more code and quite a bit less clear. + + my $temp = 0; + foreach my $name (@{$names}) { + $result .= $pre_foil; + + if ($showanswer) { + my $foiltext = $Apache::response::foilgroup{$name . '.text'}; + + # Bold the prior response: + + if (defined($lastresponse->{$name})) { + $result .= '' . $foiltext . ''; + } else { + $result .= $foiltext; } + } else { + $result .= &html_radiobutton( + $part, $Apache::inputtags::response['-1'], $name, $lastresponse, $temp + ); } + + $result .= $post_foil; + $temp++; + } + + + $result .= $closing_html; + return $result; + +} + +## +# Generate LaTeX for surveys. +# +# @param $names - names of the foils to display. +# @param $showanswer - flag that is true to display answers. +# @param $lastresponse - Reference to a hash the indicates the last response. +# @param $direction - Orientation of foils ('horiztonal' or otherwise). +# @param $venv - LaTeX name for vertical env. +# +# @return string +# @retval LaTeX rendering of the survey question. + +sub latex_survey { + my ($names, $showanswer, $lastresponse, $direction, $venv) = @_; + + my $result; + + + + + if ($showanswer) { + + $result .= "\\begin{$venv}"; + foreach my $name (@{$names}) { + + + $result .= '\item \vskip -2mm '; + + if ( defined( $lastresponse->{$name} ) ) { + $result .= '}'; + } + $result .= $Apache::response::foilgroup{ $name . '.text' } . ' '; + } + $result .= "\\end{$venv}"; + + } elsif ( $env{'form.pdfFormFields'} eq 'yes' + && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') { + $result .= &display_pdf_form($names, $direction, $venv); } else { - foreach my $name (@names) { - if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') { - if ($direction eq 'horizontal') { - $result.="

"; } - } else { - $result.='\vskip 0 mm '; - } + + $result .= '\vskip 0 mm '; } + $result .= "\\end{$venv}"; } + + + } + + return $result; + + +} +## +# Figure out the LaTeX environment in which to wrap the LaTeX vertical output. +# +# @return string +# @retval the environment name. The LaTeX should be wrapped a +# \begin{retval} \end{retval} pair. +# +sub latex_vertical_environment { + if ($env{'form.pdfFormFields'} eq 'yes' + && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') { + return 'itemize'; + } else { + return 'enumerate'; + } +} + +## +# Figure out the key html fragments that depend on the rendering direction: +# +# @param $direction - 'horizontal' for horizontal direction. +# +# @return list +# @retval (part_start, part_end, foil_start, foil_end) +# Where: +# - part_start is the HTML to emit at the start of the part. +# - part_end is the HTML to emit at the end of the part. +# - foil_start is the HTML to emit prior to each foil. +# - foil_end is the HTML to emit after each foil +# +sub html_direction_fragments { + my $direction = shift; + if ($direction eq 'horizontal') { + return ('
"; - } 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 .= '
', '
', '', ''); + } else { + return ('', '
', '
', ''); + } +} + +## +# +# Displays all the foils of a problem in a format suitable for +# surveys, surveys for credit, anonymous surveys and anonymous surveys for credit. +# +# @param $direction - Display direction of the choices ('horiztonal' or not). +# @param $target - Rendering target. +# +# @return string +# @retval Text that renders for the selected target. +# +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 $id = $Apache::inputtags::response['-1']; + my $part = $Apache::inputtags::part; - if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.=''; } + my $showanswer = &Apache::response::show_answer(); + my $lastresponse = &get_last_survey_response($part, $showanswer, $id); + my $used_names = &remove_unused(\@names); + + + if ($target ne 'tex') { + $result .= &display_survey_html( + $used_names, $part, $showanswer, $lastresponse, $direction + ); + } else { + + my $vertical_env = &latex_vertical_environment(); + $result .= &latex_survey( + $used_names, $showanswer, $lastresponse, $direction, $vertical_env + ); + + } + + + return $result; } + sub whichfoils { - my ($max,$randomize)=@_; + my ( $max, $randomize ) = @_; my @truelist; my @falselist; - my @whichfalse =(); - my ($truecnt,$falsecnt) = &getfoilcounts(); - my $count=0; + 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)); + 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'} }; + @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.').'
'); + 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 ); +} + +## +# Return a list of foil texts given foil names. +# +# @param $whichfoils - Reference to a list of foil names. +# +# @return array +# @retval foil texts +# +sub get_foil_texts { + my ($whichfoils) = @_; + my @foil_texts; + + foreach my $name (@{$whichfoils}) { + push(@foil_texts, $Apache::response::foilgroup{$name . '.text'}); + } + return @foil_texts; +} + +## +# Generate the HTML for a single html foil. +# @param $part - The part for which the response is being generated. +# @param $fieldname - The basename of the radiobutton field +# @param $name - The foilname. +# @param $last_responses - Reference to a hash that holds the most recent +# responses. +# @param $value - radiobutton value. +# +# @return text +# @retval The generated html. +# +sub html_radiobutton { + my ($part, $fieldname, $name, $last_responses, $value) = @_; + + my $result=''; + + return $result; + +} +## +# Return a reference to the last response hash. This hash has exactly +# one or zero entries. The one entry is keyed by the foil 'name' of +# the prior response +# +# @param $part - Number of the problem part. +# +# @return reference to a hash. +# @retval see above. +# +sub get_last_response { + my ($part) = @_; + + my $id = $Apache::inputtags::response['-1']; + 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; } - } 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{$name.'.value'} eq 'unused') { + } + unless ($newvariation) { + $lastresponse = + $Apache::lonhomework::history{"resource.$part.$id.submission"}; + } + my %lastresponse = &Apache::lonnet::str2hash($lastresponse); + + return \%lastresponse; +} + +## +# Display foils in html rendition.: +# +# @param $whichfoils - Set of foils to display. +# @param $target - Rendition target...there are several html targets. +# @param $direction - 'horizontal' if layout is horizontal. +# @param $part - Part of the problem that's being displayed. +# @param $show_answer- True if answers should be shown. +# +# @return string +# @retval generated html. +# +sub display_foils_html { + my ($whichfoils, $target, $direction, $part, $show_answer) = @_; + my $result; + + + # if the answers get shown, we need to label each item as correct or + # incorrect. + + my ($opening_html, $finalclose, $item_pretext, $item_posttext) = + &html_direction_fragments($direction); + + $result .= $opening_html; + + + if ($show_answer) { + + foreach my $name (@{$whichfoils}) { + + # If the item gets further surrounded by tags, this + # holds the closures for those tages. + + my $item_closetag = ''; + + $result .= $item_pretext; + + # Label each foil as correct or incorrect: + + if ($Apache::response::foilgroup{$name . '.value'} eq 'true') { + $result .= &mt('Correct:') . ''; + $item_closetag .= ''; + } else { - &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in ",'<>&"')); + $result .= &mt('Incorrect'); } - } - #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); + + # Web rendition encloses the + # item text in a label tag as well: + + if ($target eq 'web') { + $result .= '' . $item_closetag; } + $result .= $Apache::response::foilgroup{$name . '.text'}; + $result .= $item_closetag; + $result .= $item_posttext; + $result .= "\n"; # make the html a bit more readable. } - &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) { - $answer = int(&Math::Random::random_uniform() * ($#whichfalse+1)) - + $topcount; - } + + + } else { + my $lastresponse = &get_last_response($part); + + my $item_no = 0; + foreach my $name (@{$whichfoils}) { + $result .= $item_pretext; + $result .= &html_radiobutton( + $part, $Apache::inputtags::response[-1], + $name, $lastresponse, $item_no + ); + $result .= $item_posttext; + $item_no++; } - &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]) } + + } + $result .= $finalclose; + + return $result; +} +## +# Display foils in exam mode for latex +# +# @param $whichfoils - Reference to an array that contains the foil names to display +# @param $bubbles_per_line - Number of bubbles on a line. +# @param $direction - Rendering direction 'horizontal' is what we're looking for. +# @param $venv - Name of LaTeX environment to use for vertical rendering. +# +# @return string +# @return the latex rendering of the exam problem. +# +# +sub display_latex_exam { + my ($whichfoils, $bubbles_per_line, $direction, $venv) = @_; + my $result; + my $numlines; + my $bubble_number = 0; + my $line = 0; + my $i = 0; + + + if ($direction eq 'horizontal') { + + # Marshall the display text for each foil and turn things over to + # Apache::response::make_horizontal_bubbles: + + my @foil_texts = &get_foil_texts($whichfoils); + $result .= &Apache::caparesponse::make_horizontal_latex_bubbles( + $whichfoils, \@foil_texts, '$\bigcirc$'); + + } else { + $result .= "\\begin{$venv}"; + + # This section puts out the prefix that tells the user + # (if necessary) to only choose one bubble in the next n lines + # for problems with more than one line worth of bubbles in the grid sheet: + + 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 . '}.]'; + } + + # Now output the bubbles themselves: + + foreach my $name (@{$whichfoils}) { + if ( $bubble_number >= $bubbles_per_line ) { + $line++; + $i = 0; + $bubble_number = 0; + } + my $identifier; + if ( $numlines > 1 ) { + $identifier = $Apache::lonxml::counter + $line; + } + $result .= + '{\small \textbf{' + . $identifier + . $alphabet[$i] + . '}}$\bigcirc$' + . $Apache::response::foilgroup{ $name . '.text' } + . '\\\\'; #' stupid emacs -- it thinks it needs that apostrophe to close the quote + + $i++; + $bubble_number++; } - for (my $i=0;$i<=$#bottomlist;$i++) { - if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) } + $result .= "\\end{$venv}"; + + } + + return $result; + +} + +## +# Display latex when exam mode is not on. +# +# @param $whichfoils - The foils to display +# @param $direction - Display direction ('horizontal' is what matters to us). +# @param $venv - Vertical env. to use for vertical rendering. +# @param $vend - End the vertical environment being used. +# +# @return string +# @retval - The LaTeX rendering of the resource.' +# +sub display_latex { + my ($whichfoils, $direction, $venv) = @_; + my $result; + + # how we render depends on the direction. + # Vertical is some kind of list environment determined by vbegin/vend. + # Horizontal is a table that is generated by + # Apache::caparesponse::make_horizontal_latex_bubbles with an empty string + # for the actual bubble text. + + if ($direction eq 'horizontal') { + my @foil_texts = &get_foil_texts($whichfoils); + $result .= &Apache::caparesponse::make_horizontal_latex_bubbles( + $whichfoils, \@foil_texts, ''); + } else { + $result .= "\\begin{$venv}"; + foreach my $name (@{$whichfoils}) { + $result .= '\vspace*{-2 mm}\item ' + . $Apache::response::foilgroup{ $name . '.text' }; } - #if the true statement is randomized insert it into the list - if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); } + + $result .= "\\end{$venv}"; } - &Apache::lonxml::debug("Answer is $answer"); - return ($answer,@whichfalse); + return $result; } + +## +# Render foils for a PDF form. This is a variant of tex rednering that provides +# sufficient markup that the final PDF is a form that can be filled in online, +# or offline. +# +# @param $whichfoils - References an array of foils to display in the order in which +# they should be displayed. +# @param $direction - Rendering direction. 'horiztonal' means inputs are laid out +# horizontally otherwise they are stacked vertically. +# @param $venv - Vertical environment in which to wrap the foils. +# +# @return string +# @retval String containing the rendering of the resource. +# +# TODO: Take into account direction!!! +# +sub display_pdf_form { + my ($whichfoils, $direction, $venv) = @_; + my $temp = 0; + my $result; + + $result .= "\\begin{$venv}"; + foreach my $name ( @{$whichfoils} ) { + + 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"; + + $temp++; + } + $result .= "\\end{$venv}"; + + return $result; +} + + +## +# Display selected foils: This is really just a dispatchter to appropriate renderers +# +# @param $target - Target (e.g. 'tex'...). +# @param $answer - True if answers should be shown. +# @param $whichfoils - Array of foil selectors that indicate which foils shouild be +# rendered, in rendering order. +# @param $direction- Rendering direction ('horizontal' is the one we look for, +# otherwise foils are rendered one per line vertically. +# @param $bubbles_per_line - number of exam bubbles per line. +# +# @return string +# @retval The rendered problem. + sub displayfoils { - my ($target,$answer,$whichfoils,$direction, $bubbles_per_line)=@_; + 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.='
'; - } - } + my $part = $Apache::inputtags::part; + my $solved = $Apache::lonhomework::history{"resource.$part.solved"}; + + # Show answers html. + + if ( ( $target ne 'tex' ) + && &Apache::response::show_answer() ) + { + + $result = &display_foils_html( + $whichfoils, $target, $direction, $part, 1); + + # other html + } elsif ($target ne 'tex') { + $result = &display_foils_html($whichfoils, $target, $direction, $part, + 0, 0); + + # LaTeX rendering: } 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.=""; - } - foreach my $name (@{ $whichfoils }) { - if ($target ne 'tex') { - if ($direction eq 'horizontal') { - $result.=""; + $result .= &display_latex($whichfoils, $direction, $vertical_env ); } - $temp++; - } - if ($target ne 'tex' && $direction eq 'horizontal') { - $result.="
"; - } else { - $result.="
"; - } - } - if ($target ne 'tex') { - $result.= '
"; + $result .= '\vskip 0 mm '; + } + + } - if ($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'} }; + @names = @{ $Apache::response::foilgroup{'names'} }; } - my $result=&Apache::response::answer_header('radiobuttonresponse'); + 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_part( 'radiobuttonresponse', + $Apache::response::foilgroup{ $name . '.value' } ); } - $result.=&Apache::response::answer_footer('radiobuttonresponse'); + $result .= &Apache::response::answer_footer('radiobuttonresponse'); return $result; } sub displayanswers { - my ($answer, $whichopt, $bubbles_per_line)=@_; + 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'}); + 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'); + $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); } + 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 ( $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(); + 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"; + my $result = + "\n\t\t" + . &insert_foil() + . "\n\t\t\n"; return $result; } sub start_foil { - my ($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); } - } + 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,$token,$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; - } - } + 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 ''; } @@ -846,6 +1534,7 @@ sub insert_foil { '; } + 1; __END__