--- loncom/homework/inputtags.pm	2003/04/08 13:46:30	1.90
+++ 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 1.90 2003/04/08 13:46:30 sakharuk 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;
@@ -252,6 +286,9 @@ sub finalizeawards {
     foreach $award (@_) { if ($award eq 'SUBMITTED') {$result=$award; last;} }
   }
   if ($result eq '' ) {
+    foreach $award (@_) { if ($award eq 'ASSIGNED_SCORE') {$result=$award; last;} }
+  }
+  if ($result eq '' ) {
     foreach $award (@_) { if ($award eq 'APPROX_ANS') {$result=$award; last;} }
   }
   if ($result eq '' ) { $result='EXACT_ANS'; }
@@ -264,84 +301,88 @@ sub decideoutput {
   my $button=0;
   my $previousmsg;
 
- if (lc $Apache::lonhomework::problemstatus eq 'yes') {
-
   if ($previous) { $previousmsg='You have entered that answer before'; }
 
   if      ($solved =~ /^correct/) {
-    if ($target eq 'tex') {
-      $message = '\textbf{You are correct}. Your receipt is '.
-      &Apache::lonnet::receipt;
-    } else {
-      $message = "<b>You are correct.</b> Your receipt is ".
-      &Apache::lonnet::receipt;
-    }
-    $button=0;
-    $previousmsg='';
+      if ($award eq 'ASSIGNED_SCORE') {
+	  $message = "A score has been assigned.";
+      } else {
+	  if ($target eq 'tex') {
+	      $message = '\textbf{You are correct}.';
+	  } else {
+	      $message = "<b>You are correct.</b>";
+	  }
+	  $message=' Your receipt is '.&Apache::lonnet::receipt;
+      }
+      $button=0;
+      $previousmsg='';
   } elsif ($solved =~ /^excused/) {
-    $message = "<b>You are excused from the problem.</b>";
-    $button=0;
-    $previousmsg='';
-  } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
-    if ($solved =~ /^incorrect/ || $solved eq '') {
-      $message = "Incorrect";
-      $button=1;
-    } else {
-      $message = "<b>You are correct.</b> Your receipt is ".
-	&Apache::lonnet::receipt;
+      $message = "<b>You are excused from the problem.</b>";
       $button=0;
       $previousmsg='';
-    }
+  } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
+      if ($solved =~ /^incorrect/ || $solved eq '') {
+	  $message = "Incorrect";
+	  $button=1;
+      } else {
+	  $message = "<b>You are correct.</b> Your receipt is ".
+	   &Apache::lonnet::receipt;
+	  $button=0;
+	  $previousmsg='';
+      }
   } elsif ($award eq 'NO_RESPONSE') {
-    $message = '';
-    $button=1;
+      $message = '';
+      $button=1;
   } elsif ($award eq 'MISSING_ANSWER') {
-    $message = 'Some parts were not submitted';
-    $button = 1;
+      $message = 'Some parts were not submitted';
+      $button = 1;
   } elsif ($award eq 'WANTED_NUMERIC') {
-    $message = "This question expects a numeric answer";
-    $button=1;
+      $message = "This question expects a numeric answer";
+      $button=1;
   } elsif ($award eq 'MISORDERED_RANK') {
-    $message = 'You have provided an invalid ranking, please refer to '.
-     &Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems').'.';
-    $button=1;
+      $message = 'You have provided an invalid ranking, please refer to '.
+       &Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems').'.';
+      $button=1;
   } elsif ($award eq 'INVALID_FILETYPE') {
-    $message = 'The filetype extension of the file you uploaded is not allowed.';
-    $button=1;
+      $message = 'The filetype extension of the file you uploaded is not allowed.';
+      $button=1;
   } elsif ($award eq 'SIG_FAIL') {
-    $message = "Please adjust significant figures.";# you provided %s significant figures";
-    $button=1;
+      $message = "Please adjust significant figures.";# you provided %s significant figures";
+      $button=1;
   } elsif ($award eq 'UNIT_FAIL') {
-    $message = "Units incorrect. ".
+      $message = "Units incorrect. ".
        &Apache::loncommon::help_open_topic('Physical_Units'); #Computer reads units as %s";
-    $button=1;
+      $button=1;
   } elsif ($award eq 'UNIT_NOTNEEDED') {
-    $message = "Only a number required.";# Computer reads units of %s";
-    $button=1;
+      $message = "Only a number required.";# Computer reads units of %s";
+      $button=1;
   } elsif ($award eq 'NO_UNIT') {
-    $message = "Units required".
+      $message = "Units required".
        &Apache::loncommon::help_open_topic('Physical_Units');
-    $button=1;
+      $button=1;
   } elsif ($award eq 'BAD_FORMULA') {
-    $message = "Unable to understand formula";
-    $button=1;
+      $message = "Unable to understand formula";
+      $button=1;
   } elsif ($award eq 'INCORRECT') {
-    $message = "Incorrect";
-    $button=1;
+      $message = "Incorrect";
+      $button=1;
   } elsif ($award eq 'SUBMITTED') {
-    $message = "Your submission has been recorded.";
-    $button=1;
+      $message = "Your submission has been recorded.";
+      $button=1;
   } elsif ($award eq 'DRAFT') {
-    $message = "A draft copy has been saved.";
-    $button=1;
+      $message = "A draft copy has been saved.";
+      $button=1;
+  } elsif ($award eq 'ASSIGNED_SCORE') {
+      $message = "A score has been assigned.";
+      $button=0;
   } else {
-    $message = "Unknown message: $award";
-    $button=1;
+      $message = "Unknown message: $award";
+      $button=1;
+  }
+  if (lc($Apache::lonhomework::problemstatus) eq 'no') {
+      $message = "Answer Submitted";
+      $button=1;
   }
- } elsif ($Apache::lonhomework::type eq 'exam') {
-     $message = "Answer Submitted";
-     $button=1;
- }
   return ($button,$message,$previousmsg);
 }
 
@@ -363,16 +404,38 @@ 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"}='';
     }
-    if ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
+    if ( $award eq 'ASSIGNED_SCORE') {
+	$Apache::lonhomework::results{"resource.$id.tries"} =
+	    $Apache::lonhomework::history{"resource.$id.tries"} + 1;
+	$Apache::lonhomework::results{"resource.$id.solved"} =
+	    $solvemsg;
+	my $numawards=scalar(@Apache::inputtags::responselist);
+	&Apache::lonxml::debug("Whaaa!");
+	$Apache::lonhomework::results{"resource.$id.awarded"} = 0;
+	foreach my $res (@Apache::inputtags::responselist) {
+	    $Apache::lonhomework::results{"resource.$id.awarded"}+=
+	       $Apache::lonhomework::results{"resource.$id.$res.awarded"};
+	}
+	if ($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"} =
@@ -495,8 +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 ';
 	  }