'; }
- my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
- if (&Apache::response::show_answer() ) {
- foreach my $name (@names) {
- if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
- if (($direction eq 'horizontal') && ($target ne 'tex')) {
- $result.="
';
}
-
- if (($direction eq 'horizontal') && ($target ne 'tex')) { $result.='
'; }
return $result;
}
-=pod
-
-=item &whichfoils($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
- $answer - location in the array of the correct answer
- @foils - array of foil names in to display order
-
-=cut
-
sub whichfoils {
- my ($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::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') {
- $dosplice=0;
- &Apache::lonxml::error(&mt('There are no true statements available.').' ');
- }
- #insert the true statement, keeping track of where it wants to be
- if ($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;
- }
- }
- &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]); }
+ 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 ( $answer, @whichfalse );
}
+##
+# 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, $value) = @_;
-sub displayfoils {
- my ($target,$answer,$whichfoils,$direction, $bubbles_per_line)=@_;
+ my $result='';
+
+ return $result;
+
+}
+
+##
+# 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 $solved - Solution state of the problem.
+# @param $show_answer- True if answers should be shown.
+#
+# @return string
+# @retval generated html.
+#
+sub display_foils_html {
+ my ($whichfoils, $target, $direction, $part, $solved, $show_answer) = @_;
my $result;
- my $part=$Apache::inputtags::part;
- my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
- if ( ($target ne 'tex') &&
- &Apache::response::show_answer() ) {
+ # if the answers get shown, we need to label each item as correct or
+ # incorrect.
+
+ if ($show_answer) {
+ my $item_pretext = ' '; # html prior to each item
+ my $item_posttext = ''; # html after each item.
+ my $finalclose = ''; # html to close off the whole shebang
+
+
+ # Horizontal layout is a table with each foil in a cell
+
if ($direction eq 'horizontal') {
- if ($target ne 'tex') {
- $result.='
';
- }
- }
- foreach my $name (@{ $whichfoils }) {
- if ($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{';
- }
+ $result = '
';
+ $item_pretext = '
' . $item_pretext;
+ $item_posttext = '
';
+ $finalclose = '
';
+ }
+
+ 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 {
- $result.=&mt('Incorrect:');
- }
- if ($target eq 'web') { $result.=""; }
- if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
- if ($target ne 'tex') { $result.='';} else {$result.='}';}
+ $result .= &mt('Incorrect');
}
- if ($direction eq 'horizontal') {
- if ($target ne 'tex') { $result.='
'; }
- }
- }
- if ($direction eq 'horizontal') {
- if ($target ne 'tex') {
- $result.='
';
+
+ # Web rendition encloses the
+ # item text in a label tag as well:
+
+ if ($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.
}
+
+ $result .= $finalclose;
+
} 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 $lastresponse=$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.="