--- loncom/homework/inputtags.pm	2003/04/19 09:00:54	1.92
+++ loncom/homework/inputtags.pm	2003/05/06 15:31:45	1.98
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # input  definitons
 #
-# $Id: inputtags.pm,v 1.92 2003/04/19 09:00:54 albertel Exp $
+# $Id: inputtags.pm,v 1.98 2003/05/06 15:31:45 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -33,7 +33,7 @@ use strict;
 use Apache::loncommon;
 
 BEGIN {
-  &Apache::lonxml::register('Apache::inputtags',('textfield','textline'));
+  &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
 }
 
 
@@ -124,11 +124,17 @@ sub start_textfield {
     }
     $result.=&Apache::edit::modifiedfield();
   } elsif ($target eq 'tex') {
+      my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
+      my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
       if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
-	  my $number_of_lines= &Apache::lonxml::get_param('rows',$parstack,$safeeval);
 	  $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
-	for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
-	$result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
+	  for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
+	  $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
+      } else {
+	  my $TeXwidth=$width_of_box/80;
+	  $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
+	  for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
+	  $result.='}}}\vskip 2 mm ';
       }
   }
   return $result;
@@ -194,6 +200,34 @@ sub end_textline {
   return "";
 }
 
+sub start_hiddenline {
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+    my $result = "";
+    if ($target eq 'web') {
+	$Apache::lonxml::evaluate--;
+	if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+	    my $partid=$Apache::inputtags::part;
+	    my $id=$Apache::inputtags::response[-1];
+	    my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"});
+	    if ($Apache::lonhomework::type ne 'exam') {
+		$result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
+		    $oldresponse.'" />';
+	    }
+	}
+    } elsif ($target eq 'edit') {
+	$result=&Apache::edit::tag_start($target,$token);
+	$result.=&Apache::edit::end_table;
+    }
+    return $result;
+}
+
+sub end_hiddenline {
+  my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
+  if    ($target eq 'web') { $Apache::lonxml::evaluate++; }
+  elsif ($target eq 'edit') { return ('','no'); }
+  return "";
+}
+
 sub finalizeawards {
   my $result='';
   my $award;
@@ -344,8 +378,8 @@ sub decideoutput {
   } else {
       $message = "Unknown message: $award";
       $button=1;
-  } 
-  if (lc($Apache::lonhomework::problemstatus) ne 'yes') {
+  }
+  if (lc($Apache::lonhomework::problemstatus) eq 'no') {
       $message = "Answer Submitted";
       $button=1;
   }
@@ -370,8 +404,14 @@ sub setgradedata {
     $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
     return '';
   } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
-       /^correct/ ) {
+       /^correct/ || $Apache::lonhomework::scantronmode) {
     #handle assignment of tries and solved status
+    my $solvemsg;
+    if ($Apache::lonhomework::scantronmode) {
+	$solvemsg='correct_by_scantron';
+    } else {
+	$solvemsg='correct_by_student';
+    }
     if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
       $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
     }
@@ -379,19 +419,23 @@ sub setgradedata {
 	$Apache::lonhomework::results{"resource.$id.tries"} =
 	    $Apache::lonhomework::history{"resource.$id.tries"} + 1;
 	$Apache::lonhomework::results{"resource.$id.solved"} =
-	    'correct_by_student';
-	my $numawards=scalar(@Apache::inputtags::response);
+	    $solvemsg;
+	my $numawards=scalar(@Apache::inputtags::responselist);
+	&Apache::lonxml::debug("Whaaa!");
 	$Apache::lonhomework::results{"resource.$id.awarded"} = 0;
-	foreach my $res (@Apache::inputtags::response) {
+	foreach my $res (@Apache::inputtags::responselist) {
 	    $Apache::lonhomework::results{"resource.$id.awarded"}+=
 	       $Apache::lonhomework::results{"resource.$id.$res.awarded"};
 	}
-	$Apache::lonhomework::results{"resource.$id.awarded"}/=$numawards;
+	if ($numawards > 0) {
+	    $Apache::lonhomework::results{"resource.$id.awarded"}/=
+		$numawards;
+	}
     } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
       $Apache::lonhomework::results{"resource.$id.tries"} =
 	$Apache::lonhomework::history{"resource.$id.tries"} + 1;
       $Apache::lonhomework::results{"resource.$id.solved"} =
-	'correct_by_student';
+	$solvemsg;
       $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
     } elsif ( $award eq 'INCORRECT' ) {
       $Apache::lonhomework::results{"resource.$id.tries"} =
@@ -514,8 +558,8 @@ sub gradestatus {
     if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; } 
     if ( $showbutton ) {
       if ($target eq 'tex') {
-	  if ($ENV{'request.state'} ne "construct") {
-	      $trystr = ' {\small \textit{Tries} '.$tries.'/'.$maxtries.'} \vskip 0 mm ';
+	  if ($ENV{'request.state'} ne "construct" && $Apache::lonhomework::type ne 'exam') {
+	      $trystr = ' {\vskip 1 mm \small \textit{Tries} '.$tries.'/'.$maxtries.'} \vskip 2 mm ';
 	  } else {
 	      $trystr = '\vskip 0 mm ';
 	  }