--- loncom/homework/matchresponse.pm	2004/02/09 19:47:53	1.35
+++ loncom/homework/matchresponse.pm	2004/05/27 04:32:19	1.41
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Full matching style response
 #
-# $Id: matchresponse.pm,v 1.35 2004/02/09 19:47:53 albertel Exp $
+# $Id: matchresponse.pm,v 1.41 2004/05/27 04:32:19 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -30,7 +30,8 @@ package Apache::matchresponse;
 use strict;
 use HTML::Entities();
 use Math::Random();
-use Apache::optionresponse;
+use Apache::optionresponse();
+use Apache::lonlocal;
 
 BEGIN {
     &Apache::lonxml::register('Apache::matchresponse',('matchresponse'));
@@ -46,6 +47,7 @@ sub start_matchresponse {
     push (@Apache::lonxml::namespace,'matchresponse');
     my $id = &Apache::response::start_response($parstack,$safeeval);
     %Apache::hint::match=();
+    undef(%Apache::response::foilnames);
     if ($target eq 'meta') {
 	$result=&Apache::response::meta_package_write('matchresponse');
     } elsif ($target eq 'edit' ) {
@@ -80,6 +82,7 @@ sub end_matchresponse {
     pop @Apache::lonxml::namespace;
     &Apache::lonxml::deregister('Apache::matchresponse',
 				('foilgroup','foil','conceptgroup'));
+    undef(%Apache::response::foilnames);
     return $result;
 }
 
@@ -150,7 +153,7 @@ sub end_itemgroup {
 	$table.='</table>';
 	$Apache::matchresponse::itemtable{'display'}=$table;
     } elsif ($target eq 'tex') {
-	my $table=' \begin{description} ';
+	my $table=' \begin{description}\setlength{\leftmargin}{2em}\setlength{\labelwidth}{1em}\setlength{\itemsep}{0.5pt plus1pt minus2pt}\setlength{\listparindent}{0em} ';
 	my $i=0;
 	foreach my $name (@names) {
 	    $Apache::response::itemgroup{$name.'.text'}=~s/\$\$/\$/g;
@@ -158,7 +161,8 @@ sub end_itemgroup {
 		$Apache::response::itemgroup{$name.'.text'};
 	    $i++;
 	}
-	$table.=' \end{description} \strut ';
+	$table.=' \end{description}  \strut ';
+	if ($Apache::lonhomework::type eq 'exam') {$table.='\vskip -13 mm \strut ';}
 	$Apache::matchresponse::itemtable{'display'}=$table;
     }
     return $result;
@@ -228,7 +232,7 @@ sub start_foilgroup {
     my $result;
     %Apache::response::foilgroup=();
     $Apache::matchresponse::conceptgroup=0;
-    &Apache::response::setrandomnumber();
+    &Apache::response::pushrandomnumber();
     if ($target eq 'edit') {
 	$result.=&Apache::edit::start_table($token)
 	    ."<tr><td>Collection Of Foils</td><td>Delete:"
@@ -262,6 +266,7 @@ sub end_foilgroup {
     } elsif ($target eq 'edit') {
 	$result=&Apache::edit::end_table();
     }
+    &Apache::response::poprandomnumber();
     return $result;
 }
 
@@ -419,7 +424,7 @@ sub displayfoils {
 	}
     } else {
 	my $i = 0;
-	my $temp=0;
+	my $temp=1;
 	my $id=$Apache::inputtags::response[-1];
 	my $part=$Apache::inputtags::part;
 	my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
@@ -466,7 +471,7 @@ sub displayfoils {
 		    $question.=' '.$optionlist.$text."\n";
 		    my @emptyItems = ();
 		    for (my $i=0;$i<=$#used_letters;$i++) {push @emptyItems, ' ';}
-		    $question.='\vskip -2 mm\parbox{\textwidth}{\begin{enumerate}\item[\textbf{'.$internal_counter.'}.]\parbox{\textwidth - 5 mm}{'.&Apache::optionresponse::bubbles(\@used_letters,\@emptyItems).'}\end{enumerate}} \vskip -10 mm \strut ';
+		    $question.='\vskip -1 mm\noindent\begin{enumerate}\item[\textbf{'.$internal_counter.'}.]'.&Apache::optionresponse::bubbles(\@used_letters,\@emptyItems).'\end{enumerate} \vskip -8 mm \strut ';
 		    $internal_counter++;
 	        } else {
 		    $question.=' '.$optionlist.$text.'\strut\\\\\strut '."\n";
@@ -484,14 +489,22 @@ sub displayfoils {
 	    $result='<table><tr><td>'.$question.'</td><td>'.$result.
 		'</td></tr></table>';
 	} else {
-	    $result='\begin{tabular}{p{\textwidth/2}p{\textwidth/2}}\begin{minipage}{\textwidth/2}'.$question.'\end{minipage}&\begin{minipage}{\textwidth/2}'.$result.'\end{minipage}\end{tabular}';
+	    my $tabsize=&Apache::londefdef::recalc($ENV{'form.textwidth'});
+	    $tabsize=~/(\d+\.?\d*)/;
+	    $tabsize=$1/2.1;
+	    $tabsize.=' mm ';
+	    $result='\setlength{\tabcolsep}{1 mm}\begin{tabular}{p{'.$tabsize.'}p{'.$tabsize.'}}\begin{minipage}{'.$tabsize.'}'.$question.'\end{minipage}&\begin{minipage}{'.$tabsize.'}'.$result.'\end{minipage}\end{tabular}';
 	}
     } elsif ($result=&itemdisplay('left')) {
 	if ($target ne 'tex') {
 	    $result='<table><tr><td>'.$result.'</td><td>'.$question.
 		'</td></tr></table>';
 	} else {
-	    $result='\begin{tabular}{p{\textwidth/2}p{\textwidth/2}}\begin{minipage}{\textwidth/2}'.$result.'\end{minipage}&\begin{minipage}{\textwidth/2}'.$question.'\end{minipage}\end{tabular}';
+	    my $tabsize=&Apache::londefdef::recalc($ENV{'form.textwidth'});
+	    $tabsize=~/(\d+\.?\d*)/;
+	    $tabsize=$1/2.1;
+	    $tabsize.=' mm ';
+	    $result='\setlength{\tabcolsep}{1 mm}\begin{tabular}{p{'.$tabsize.'}p{'.$tabsize.'}}\begin{minipage}{'.$tabsize.'}'.$result.'\end{minipage}&\begin{minipage}{'.$tabsize.'}'.$question.'\end{minipage}\end{tabular}';
 	}
     }
     if ($target ne 'tex') {$result.="<br />";} else {$result.=' \\\\ ';}
@@ -592,10 +605,15 @@ sub end_foil {
 	my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
 	if ($value ne 'unused') {
 	    my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
-	    my $location =&Apache::lonxml::get_param('location',$parstack,$safeeval);
 	    &Apache::lonxml::debug("Got a name of :$name:");
 	    if (!$name) { $name=$Apache::lonxml::curdepth; }
 	    &Apache::lonxml::debug("Using a name of :$name:");
+	    if (defined($Apache::response::foilnames{$name})) {
+		&Apache::lonxml::error(&mt("Foil name <b><tt>[_1]</tt></b> appears more than once. Foil names need to be unique.",$name));
+	    }
+	    $Apache::response::foilnames{$name}++;
+	    my $location =&Apache::lonxml::get_param('location',$parstack,
+						     $safeeval);
 	    if ( $Apache::matchresponse::conceptgroup
 		 && !&Apache::response::showallfoils() ) {
 		push @{ $Apache::response::conceptgroup{'names'} }, $name;