--- loncom/homework/matchresponse.pm	2004/07/08 17:51:31	1.44
+++ loncom/homework/matchresponse.pm	2006/04/04 22:24:08	1.58
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Full matching style response
 #
-# $Id: matchresponse.pm,v 1.44 2004/07/08 17:51:31 sakharuk Exp $
+# $Id: matchresponse.pm,v 1.58 2006/04/04 22:24:08 foxr Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -32,6 +32,7 @@ use HTML::Entities();
 use Math::Random();
 use Apache::optionresponse();
 use Apache::lonlocal;
+use Apache::lonnet;
 
 BEGIN {
     &Apache::lonxml::register('Apache::matchresponse',('matchresponse'));
@@ -101,11 +102,15 @@ sub start_itemgroup {
 					   'location',
 					   ['top','bottom','left','right'],
 					   $token);
+	$result.=&Apache::edit::select_arg('Items Display Directection:',
+					   'direction',
+					   ['vertical','horizontal'],
+					   $token);
 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
     } elsif ($target eq 'modified') {
 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
 						     $safeeval,'randomize',
-						     'location');
+						     'location','direction');
 	if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
     } elsif ($target eq 'web' or $target eq 'tex') {
 	$Apache::matchresponse::itemtable{'location'}=
@@ -142,15 +147,20 @@ sub end_itemgroup {
     }
     $Apache::response::itemgroup{'letter_name_map'}=\%letter_name_map;
     $Apache::response::itemgroup{'name_letter_map'}=\%name_letter_map;
+    my $direction=&Apache::lonxml::get_param('direction',$parstack,$safeeval);
     if ($target eq 'web') {
-	my $table='<table>';
+	
+	my $table='<br /><table>'; # extra space to match what latex does.
 	my $i=0;
+	if ($direction eq 'horizontal') { $table .='<tr>';}
 	foreach my $name (@names) {
-	    $table.='<tr><td>'.$alphabet[$i].'</td><td>'.
-		$Apache::response::itemgroup{$name.'.text'}.
-		    '</td></tr>';
+	    if ($direction ne 'horizontal') { $table.='<tr>'; }
+	    $table.='<td>'.$alphabet[$i].'</td><td>'.
+		$Apache::response::itemgroup{$name.'.text'}.'</td>';
+	    if ($direction ne 'horizontal') { $table.='</tr>'; }
 	    $i++;
 	}
+	if ($direction eq 'horizontal') { $table .='</tr>';}
 	$table.='</table>';
 	$Apache::matchresponse::itemtable{'display'}=$table;
     } elsif ($target eq 'tex') {
@@ -207,7 +217,7 @@ sub end_item {
 	my $location=&Apache::lonxml::get_param('location',$parstack,
 						$safeeval);
 	&Apache::lonxml::debug("Got a name of :$name:");
-	if (!$name) { $name=$Apache::lonxml::curdepth; }
+	if ($name eq "") { $name=$Apache::lonxml::curdepth; }
 	&Apache::lonxml::debug("Using a name of :$name:");
 	push @{ $Apache::response::itemgroup{'names'} }, $name;
 	$Apache::response::itemgroup{"$name.text"} = $text;
@@ -287,18 +297,30 @@ sub displayanswers {
 						   $randomize,
 					  &Apache::response::showallfoils(),
 					 \%Apache::response::foilgroup);
-    my $result=&Apache::response::answer_header('matchresponse');
     my %name_letter_map;
     if (defined(%{ $Apache::response::itemgroup{'name_letter_map'} })) {
 	%name_letter_map=
 	    %{ $Apache::response::itemgroup{'name_letter_map'} };
     }
-    foreach my $name (@whichfoils) {
-	my $value_name=$Apache::response::foilgroup{$name.'.value'};
-	my $letter=$name_letter_map{$value_name};
-	$result.=&Apache::response::answer_part('matchresponse',$letter);
+    my $result;
+    if ($Apache::lonhomework::type eq 'exam') {
+	my $i=0;
+	foreach my $name (@whichfoils) {
+	    $result.=&Apache::response::answer_header('matchresponse',$i++);
+	    my $value_name=$Apache::response::foilgroup{$name.'.value'};
+	    my $letter=$name_letter_map{$value_name};
+	    $result.=&Apache::response::answer_part('matchresponse',$letter);
+	    $result.=&Apache::response::answer_footer('matchresponse');
+	}
+    } else {
+	$result=&Apache::response::answer_header('matchresponse');
+	foreach my $name (@whichfoils) {
+	    my $value_name=$Apache::response::foilgroup{$name.'.value'};
+	    my $letter=$name_letter_map{$value_name};
+	    $result.=&Apache::response::answer_part('matchresponse',$letter);
+	}
+	$result.=&Apache::response::answer_footer('matchresponse');
     }
-    $result.=&Apache::response::answer_footer('matchresponse');
     return $result;
 }
 
@@ -309,7 +331,7 @@ sub grade_response {
 						   $randomize,
 				            &Apache::response::showallfoils(),
 				           \%Apache::response::foilgroup);
-    if (!defined($ENV{'form.submitted'})) { return; }
+    if (!&Apache::response::submitted()) { return; }
     my %responsehash;
     my %grade;
     my ($temp,$right,$wrong,$ignored)=(1,0,0,0);
@@ -350,7 +372,16 @@ sub grade_response {
 	$itemstr;
     $Apache::lonhomework::results{"resource.$part.$id.submissiongrading"}=
 	$gradestr;
-    if (!$Apache::lonhomework::scantronmode) {
+    if ($Apache::lonhomework::type eq 'survey') {
+	if ($ignored == 0) {
+	    my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
+	    &Apache::response::handle_previous(\%previous,$ad);
+	} elsif ($wrong==0 && $right==0) {
+	} else {
+	    my $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='MISSING_ANSWER';
+	    &Apache::response::handle_previous(\%previous,$ad);
+	}
+    } elsif (!$Apache::lonhomework::scantronmode) {
 	my $ad;
 	if ($wrong==0 && $ignored==0) {
 	    $ad='EXACT_ANS';
@@ -420,7 +451,7 @@ sub displayfoils {
 	    if ($target eq 'tex') {
 		$question.=' \\\\ '.$letter.':'.$text;
 	    } else {
-		$question.='<br />'.$letter.':'.$text;
+		$question.='<br /><b>'.$letter.':</b> '.$text;
 	    }
 	}
     } else {
@@ -460,9 +491,9 @@ sub displayfoils {
 	    my $text=$Apache::response::foilgroup{$name.'.text'};
 	    if ($target ne 'tex') {
 		if ($Apache::lonhomework::type ne 'exam') {
-		    $question.='<br />'.$optionlist.$text."\n";
+		    $question.="<br />\n".$optionlist.$text;
 		} else {
-		    $question.='<br />'.$text."\n";
+		    $question.="<br />\n".$text;
 		}
 		if ($Apache::lonhomework::type eq 'exam') {
 		    my @blank;
@@ -488,10 +519,12 @@ sub displayfoils {
 	$result=$question.$result;
     } elsif ($result=&itemdisplay('right')) {
 	if ($target ne 'tex') {
-	    $result='<table><tr><td>'.$question.'</td><td>'.$result.
-		'</td></tr></table>';
+	    #remove the first <br />
+	    $question=~s|<br />||;
+	    $result='<table><tr><td valign="top">'.$question.
+		'</td><td valign="top">'.$result.'</td></tr></table>';
 	} else {
-	    my $tabsize=&Apache::londefdef::recalc($ENV{'form.textwidth'});
+	    my $tabsize=&Apache::londefdef::recalc($env{'form.textwidth'});
 	    my ($lefttabsize,$righttabsize)=(0,0);
 	    if ($Apache::matchresponse::TeXitemgroupwidth ne '') {
 		$Apache::matchresponse::TeXitemgroupwidth=~/(\d*.?\d*)/;
@@ -508,10 +541,12 @@ sub displayfoils {
 	}
     } elsif ($result=&itemdisplay('left')) {
 	if ($target ne 'tex') {
-	    $result='<table><tr><td>'.$result.'</td><td>'.$question.
-		'</td></tr></table>';
+	    #remove the first <br />
+	    $question=~s|<br />||;
+	    $result='<table><tr><td valign="top">'.$result.
+		'</td><td valign="top">'.$question.'</td></tr></table>';
 	} else {
-	    my $tabsize=&Apache::londefdef::recalc($ENV{'form.textwidth'});
+	    my $tabsize=&Apache::londefdef::recalc($env{'form.textwidth'});
 	    my ($lefttabsize,$righttabsize)=(0,0);
 	    if ($Apache::matchresponse::TeXitemgroupwidth ne '') {
 		$Apache::matchresponse::TeXitemgroupwidth=~/(\d*.?\d*)/;
@@ -587,6 +622,9 @@ sub start_foil {
     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,"Foil");
 	my $level='-2';
@@ -620,13 +658,20 @@ sub end_foil {
     if ($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' || $target eq 'analyze') {
+	if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
+	    $text='\vskip 5mm $\triangleright$ '.$text;
+	}
 	my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
 	if ($value ne 'unused') {
 	    my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
 	    &Apache::lonxml::debug("Got a name of :$name:");
-	    if (!$name) { $name=$Apache::lonxml::curdepth; }
+	    if (!$name) {
+		&Apache::lonxml::warning("Foils without names exist. This can cause problems to malfunction.");
+		$name=$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));
@@ -638,28 +683,12 @@ sub end_foil {
 		 && !&Apache::response::showallfoils() ) {
 		push @{ $Apache::response::conceptgroup{'names'} }, $name;
 		$Apache::response::conceptgroup{"$name.value"} = $value;
-		if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
-		    $Apache::response::conceptgroup{"$name.text"} = ' $\triangleright$ '.$text;
-		} else {
-		    $Apache::response::conceptgroup{"$name.text"} = $text;
-		}
+		$Apache::response::conceptgroup{"$name.text"} = $text;
 		$Apache::response::conceptgroup{"$name.location"} = $location;
 	    } else {
 		push @{ $Apache::response::foilgroup{'names'} }, $name;
 		$Apache::response::foilgroup{"$name.value"} = $value;
-		if ($Apache::lonhomework::type eq 'exam') {
-		    if ($target eq 'tex') {
-			$Apache::response::foilgroup{"$name.text"} = '\vskip 5 mm $\triangleright$ '.$text;
-		    } else {
-			$Apache::response::foilgroup{"$name.text"} = $text;
-		    }
-		} else {
-		    if ($target eq 'tex') {
-			$Apache::response::foilgroup{"$name.text"} = $text;
-		    } else {
-			$Apache::response::foilgroup{"$name.text"} = $text;
-		    }
-		}
+		$Apache::response::foilgroup{"$name.text"} = $text;
 		$Apache::response::foilgroup{"$name.location"} = $location;
 	    }
 	}