--- loncom/interface/lonquickgrades.pm	2002/11/15 19:32:09	1.2
+++ loncom/interface/lonquickgrades.pm	2018/11/13 03:59:00	1.114
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Quick Student Grades Display
 #
-# 
+# $Id: lonquickgrades.pm,v 1.114 2018/11/13 03:59:00 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -25,114 +25,1345 @@
 #
 # http://www.lon-capa.org/
 #
-# Created Nov. 14, 2002 by Jeremy Bowers
 
 package Apache::lonquickgrades;
 
 use strict;
-use Apache::Constants qw(:common :http);
+use Apache::Constants qw(:common :http REDIRECT);
+use POSIX;
+use Apache::loncommon;
+use Apache::lonlocal;
+use Apache::lonnet;
+use Apache::grades;
+use Apache::loncoursedata;
+use Apache::lonstudentassessment;
+use Apache::lonuserstate;
+
+use Time::HiRes;
+use Spreadsheet::WriteExcel;
+use Spreadsheet::WriteExcel::Utility();
+#
+# Excel data
+#
+my $excel_sheet;
+my $excel_workbook;
+my $filename;
+my $format;
+my $request_aborted;
+my $header_row;
+my $cols_output;
+my %prog_state;
+
 
 sub handler {
     my $r = shift;
+    return real_handler($r);
+}
+
+sub real_handler {
+    my $r = shift;
 
     &Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
 
     # Handle header-only request
+    if ($env{'browser.mathml'}) {
+	&Apache::loncommon::content_type($r,'text/xml');
+    } else {
+	&Apache::loncommon::content_type($r,'text/html');
+    }
     if ($r->header_only) {
-        if ($ENV{'browser.mathml'}) {
-            $r->content_type('text/xml');
-        } else {
-            $r->content_type('text/html');
+	$r->send_http_header;
+        return OK;
+    }
+
+    my $cangrade=&Apache::lonnet::allowed('mgr');
+    my $showPoints =
+        (($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'standard')
+      || ($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'categories'));
+
+    my $reinitresult;
+
+    unless ($cangrade) {
+        # Check for critical messages and redirect if present.
+        my ($redirect,$url) = &Apache::loncommon::critical_redirect(300,'grades');
+        if ($redirect) {
+            &Apache::loncommon::content_type($r,'text/html');
+            $r->header_out(Location => $url);
+            return REDIRECT;
         }
+
+        # Check if course needs to be re-initialized
+        my $loncaparev = $r->dir_config('lonVersion');
+        ($reinitresult,my @reinit) = &Apache::loncommon::needs_coursereinit($loncaparev);
+
+        if ($reinitresult eq 'switch') {
+            &Apache::loncommon::content_type($r,'text/html');
+            $r->send_http_header;
+            $r->print(&Apache::loncommon::check_release_result(@reinit));
+            return OK;
+        } elsif ($reinitresult eq 'update') {
+            my $cid = $env{'request.course.id'};
+            my $cnum = $env{'course.'.$cid.'.num'};
+            my $cdom = $env{'course.'.$cid.'.domain'};
+            &Apache::loncommon::content_type($r,'text/html');
+            $r->send_http_header;
+            &startpage($r,$showPoints);
+            my $preamble = '<div id="LC_update_'.$cid.'" class="LC_info">'.
+                           '<br />'.
+                           &mt('Your course session is being updated because of recent changes by course personnel.').
+                           ' '.&mt('Please be patient.').'<br /></div>'.
+                           '<div style="padding:0;clear:both;margin:0;border:0"></div>';
+            %prog_state = &Apache::lonhtmlcommon::Create_PrgWin($r,undef,$preamble);
+            &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,&mt('Updating course'));
+            $r->rflush();
+            my ($furl,$ferr) = &Apache::lonuserstate::readmap("$cdom/$cnum");
+            &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,&mt('Finished')); 
+            &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
+            my $closure = <<ENDCLOSE;
+<script type="text/javascript">
+// <![CDATA[
+\$("#LC_update_$cid").hide('slow');
+// ]]>
+</script>
+ENDCLOSE
+            if ($ferr) {
+                $r->print($closure.&Apache::loncommon::end_page());
+                my $requrl = $r->uri;
+                $env{'user.error.msg'}="$requrl:bre:0:0:Course not initialized";
+                $env{'user.reinit'} = 1;
+                return HTTP_NOT_ACCEPTABLE;
+            } else {
+               $r->print($closure);
+            }
+        } elsif ((&Apache::loncommon::course_type() eq 'Placement') &&
+                 (!$env{'request.role.adv'})) {
+            my $furl = &Apache::lonpageflip::first_accessible_resource();
+            &Apache::loncommon::content_type($r,'text/html');
+            $r->header_out(Location => $furl);
+            return REDIRECT;
+        }
+    }
+
+    unless ($reinitresult eq 'update') {
+        # Send header, don't cache this page
+        &Apache::loncommon::no_cache($r);
         $r->send_http_header;
-        return OK;
+        &startpage($r,$showPoints);
     }
+    $r->rflush();
 
-    # Send header, don't cache this page
-    if ($ENV{'browser.mathml'}) {
-        $r->content_type('text/xml');
+    &startGradeScreen($r,'quick');
+
+#
+# Pick student
+#
+    my $uname;
+    my $udom;
+    my $stdid;
+    if ($cangrade) {
+        $r->print("<h2>".&mt("Download Multiple")."</h2>".
+                  '<table cellspacing="5">'."\n".
+                  '<tr>'.
+                  '<td align="center"><b>'.&mt('Sections').'</b>'.
+                  &Apache::loncommon::help_open_topic("Chart_Sections").
+                  '</td>'.
+                  '<td align="center"><b>'.&mt('Groups').'</b>'.
+                  '</td>'.
+                  '<td align="center"><b>'.&mt('Student Data').'</b>'.
+                  &Apache::loncommon::help_open_topic("Chart_Student_Data").
+                  '</td>'.
+                  '<td align="center"><b>'.&mt('Access Status').'</b>'.
+                  &Apache::loncommon::help_open_topic("Chart_Enrollment_Status").
+                  '</td>'.
+                  '<td align="center"><b>'.&mt('Output Format').'</b>'.
+                  &Apache::loncommon::help_open_topic("Chart_Output_Formats").
+                  '</td><td>&nbsp;</td></tr>'."\n".
+                  '<tr><td align="center">'."\n".
+                  &Apache::lonstatistics::SectionSelect('Section','multiple',5).
+                  '</td><td align="center">'.
+                  &Apache::lonstatistics::GroupSelect('Group','multiple',5).
+                  '</td><td align="center">'.
+                  &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',5,undef).
+                  '</td><td>'."\n".
+                  &Apache::lonhtmlcommon::StatusOptions(undef,undef,5).
+                  '</td><td>'."\n".
+                  &Apache::lonstudentassessment::CreateAndParseOutputSelector().
+                  '</td><td>'.
+                  '<input type="submit" name="download" value="'.&mt('Display/Download Multiple Students').'" />'.
+                  '</td></tr>'."\n".
+                  '</table>'."\n"
+                 );
+        $r->print("<hr /><h2>".&mt("Display Individual")."</h2>");
+        if ($env{'form.uname'}) { $uname=$env{'form.uname'}; }
+        if ($env{'form.udom'}) { $udom=$env{'form.udom'}; }
+        if ($env{'form.id'}) { $stdid=$env{'form.id'}; }
+        if (($stdid) && ($udom)) {
+            $uname=(&Apache::lonnet::idget($udom,[$stdid],'ids'))[1];
+        }
+        if (($stdid) && (!$uname)) {
+            $r->print('<p><span class="LC_warning">'.&mt("Unknown Student/Employee ID: [_1]",$stdid).'</span></p>');
+            $stdid='';
+        }
+        $r->print('<form method="post" name="quickform" action="/adm/quickgrades">');
+        my $chooseopt=&Apache::loncommon::select_dom_form($udom,'udom').' '.
+           &Apache::loncommon::selectstudent_link('quickform','uname','udom');
+        $r->print("<p>\n".&Apache::loncommon::studentbrowser_javascript()."\n");
+        $r->print(&mt('For User [_1] or Student/Employee ID [_2] at Domain [_3]'
+                 ,'<input type="text" value="'.$uname.'" size="12" name="uname" />'
+                 ,'<input type="text" value="'.$stdid.'" size="12" name="id" /> '
+                 ,$chooseopt).
+                 '&nbsp;&nbsp;<input type="submit" name="display" value="'.&mt('Display Individual Student').'" /></p>');
+        if (($uname) && ($udom)) {
+            $r->print('<p>'.&mt('Full Name: [_1]',&Apache::loncommon::plainname($uname,$udom)).'</p>');
+        }
+    }
+    $r->rflush();
+
+    my $notshowSPRSlink =
+        (($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'external')
+      || ($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'externalnototals'));
+    my $notshowTotals=
+        $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'externalnototals';
+    my $showCategories=
+        $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'categories';
+
+    my ($navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted)=
+       &getData($showPoints,$uname,$udom);
+
+    if ($showCategories) {
+       &outputCategories($r,$showPoints,$notshowTotals,
+                 $navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted);
     } else {
-        $r->content_type('text/html');
+       &outputTable($r,$showPoints,$notshowTotals,
+                 $navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted);
+    }
+    if ($cangrade) { $r->print("\n</form>\n"); }
+    &endGradeScreen($r);
+    return OK;
+
+}
+
+sub getStudentCatGrade {
+    my ($uname,$udom,%categories)=@_;
+    my ($navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted)=
+       &getData(1,$uname,$udom);
+    return &output_category_table(undef,0,$navmap,0,%categories);
+}
+
+sub getAllStudentData {
+    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+    my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+
+    my %categories=&Apache::lonnet::dump('grading_categories',$cdom,$cnum);
+
+    my $classlist = &Apache::loncoursedata::get_classlist();
+
+    my $statusidx   = &Apache::loncoursedata::CL_STATUS();
+    my $usernameidx = &Apache::loncoursedata::CL_SNAME();
+    my $domainidx   = &Apache::loncoursedata::CL_SDOM();
+    my $fullnameidx = &Apache::loncoursedata::CL_FULLNAME();
+
+    foreach my $key (keys(%{$classlist})) {
+        my $student = $classlist->{$key};
+        my $perc=&getStudentCatGrade($classlist->{$student}->[$usernameidx],
+                                     $classlist->{$student}->[$domainidx],
+                                     %categories);
     }
-    &Apache::loncommon::no_cache($r);
-    $r->send_http_header;
+}
+
+sub startpage {
+    my ($r,$showPoints) = @_;
+    my $title = "Grading and Statistics";#$showPoints ? "Points Display" : "Completed Problems Display";
+    my $brcrum = [{href=>"/adm/quickgrades",text => "Points Display"}];
+    $r->print(&Apache::loncommon::start_page($title,undef,
+                                            {'bread_crumbs' => $brcrum})
+             );
+}
+
+sub startGradeScreen {
+    my ($r,$mode)=@_;
+
+    my $showPoints =
+        $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'standard';
+    my $notshowSPRSlink =
+        (($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'external')
+      || ($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'externalnototals')
+      || ($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'categories'));
+    my $notshowTotals=
+        $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'externalnototals';
+    my $showCategories=
+        $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'categories';
+
+    my $allowed_to_view =  &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
+    my $allowed_to_edit =  &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
+
+    if ($allowed_to_view) {
+       my @notes;
+       push(@notes,&mt('Students do not see total points.')) if ($notshowTotals);
+       push(@notes,&mt('Students do not see link to spreadsheet.')) if ($notshowSPRSlink);
+       push(@notes,&mt('Students will see points based on problem weights.')) if ($showPoints);
+       push(@notes,&mt('Students will see points based on categories.')) if ($showCategories);
+       push(@notes, &Apache::lonhtmlcommon::coursepreflink(&mt('Grade display settings'),'grading'));
+       $r->print(&Apache::loncommon::head_subbox(join('&nbsp;&nbsp;',@notes)));
+    }
+
+
+    $r->print("\n".'<ul class="LC_TabContentBigger" id="main">');
+    $r->print("\n".'<li'.($mode eq 'quick'?' class="active"':'').'><a href="/adm/quickgrades"><b>&nbsp;&nbsp;&nbsp;&nbsp;'.
+                                          ($showPoints?&mt('Individual Points Overview'):($showCategories?&mt('Grades Overview'):&mt('Completion Overview'))).
+                                          '&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>');
+
+    if (!($showPoints || $notshowSPRSlink) || ($allowed_to_view)) {
+       $r->print("\n".'<li'.($mode eq 'spreadsheet'?' class="active"':'').'><a href="/adm/'.($allowed_to_view?'classcalc':'studentcalc').'"><b>'.
+                                                                 &mt('Spreadsheet (Detailed)').'</b></a></li>');
+    }
+    if ($allowed_to_view) {
+       $r->print("\n".'<li'.($mode eq 'statistics'?' class="active"':'').'><a href="/adm/statistics"><b>'.
+                                                                 &mt('Statistics and Reports').'</b></a></li>');
+
+       $r->print("\n".'<li'.($mode eq 'chart'?' class="active"':'').'><a href="/adm/statistics?reportSelected=student_assessment"><b>'.
+                                                                 &mt('Assessment Chart').'</b></a></li>');
+
+    }
+    if ($allowed_to_edit) {
+       $r->print("\n".'<li'.($mode eq 'grading'?' class="active"':'').'><a href="/adm/grades"><b>&nbsp;&nbsp;&nbsp;&nbsp;'.
+                                                                 &mt('Content Grading').'&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>');
+       if ($env{'form.symb'}) {
+          $r->print("\n".'<li'.($mode eq 'probgrading'?' class="active"':'').'><a href="/adm/grades?symb='.
+                                              &Apache::lonhtmlcommon::entity_encode($env{'form.symb'}).
+                                              '&amp;command=gradingmenu"><b>&nbsp;&nbsp;&nbsp;&nbsp;'.
+                                              &mt('Problem Grading').'&nbsp;&nbsp;&nbsp;&nbsp;</b></a></li>');
+
+       }
+    }
+    $r->print("\n".'</ul>'."\n");
+    $r->print('<div class="LC_Box" style="clear:both;margin:0;"><div id="maincoursedoc" style="margin:0 0;padding:0 0;"><div class="LC_ContentBox" id="mainCourseDocuments" style="display: block;">');
+}
+
+sub endGradeScreen {
+   my ($r)=@_;
+   $r->print('</div></div></div>'.&Apache::loncommon::end_page());
+}
+
+# -----------
+
+
+sub excel_cleanup {
+    undef ($excel_sheet);
+    undef ($excel_workbook);
+    undef ($filename);
+    undef ($format);
+}
+
+
+sub excel_initialize {
+    my ($r) = @_;
+
+    &excel_cleanup();
+
+    # Create sheet
+    ($excel_workbook,$filename,$format)=
+        &Apache::loncommon::create_workbook($r);
+    return if (! defined($excel_workbook));
+   #
+   # Add a worksheet
+    my $sheetname = $env{'course.'.$env{'request.course.id'}.'.description'};
+    $sheetname = &Apache::loncommon::clean_excel_name($sheetname);
+    $excel_sheet = $excel_workbook->addworksheet($sheetname);
+   #
+   # Put the course description in the header
+    $excel_sheet->write($header_row,$cols_output++,
+                   $env{'course.'.$env{'request.course.id'}.'.description'},
+                        $format->{'h1'});
+} 
+
+sub excel_finish {
+    my ($r) = @_;
+    if ($request_aborted || ! defined($excel_sheet)) {
+        &excel_cleanup();
+        return;
+    }
+    #
+    # Write the excel file
+    $excel_workbook->close();
+    #
+    # Close the progress window
+    &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
+    #
+    # Tell the user where to get their excel file
+    $r->print('<br />'.
+              '<a href="'.$filename.'">'.&mt('Your Excel spreadsheet').'</a>'."\n");
+    $r->rflush();
+    &excel_cleanup();
+    return;
+}
+
+
+#
+# CSV data
+#
+# -----------
+
+#
+# Go through the complete course and collect data
+#
+
+sub getData {
+
+    my ($showPoints,$uname,$udom)=@_;
 
     # Create the nav map
-    my $navmap = Apache::lonnavmaps::navmap->new(
-                        $ENV{"request.course.fn"}.".db",
-                        $ENV{"request.course.fn"}."_parms.db", 1, 0);
-
-    if (!defined($navmap)) {
-        my $requrl = $r->uri;
-        $ENV{'user.error.msg'} = "$requrl:bre:0:0:Course not initialized";
-        return HTTP_NOT_ACCEPTABLE;
-    }
- 
-    # Header
-    $r->print(&Apache::loncommon::bodytag('Quick Score Display','',
-                                          ''));
-
-    $navmap->init();
-
-    # End navmap using boilerplate
-
-    # Col labels
-    $r->print(<<TABLETOP);
-<table border="1" cellpadding="3" cellspacing="0">
-  <tr>
-    <td align="center"><b>Problem</b></td>
-    <td align="center"><b>Score</b></td>
-  </tr>
-TABLETOP
+    my $navmap = Apache::lonnavmaps::navmap->new($uname,$udom);
+
+    my $res = $navmap->firstResource(); # temp resource to access constants
 
     my $iterator = $navmap->getIterator(undef, undef, undef, 1);
     my $depth = 1;
     $iterator->next(); # ignore first BEGIN_MAP
     my $curRes = $iterator->next();
-    my $totalAvailable = 0;
-    my $total = 0;
-   
+    
+    # General overview of the following: Walk along the course resources.
+    # For every problem in the resource, tell its parent maps how many
+    # parts and how many parts correct it has. After that, each map will
+    # have a count of the total parts underneath it, correct and otherwise.
+    # After that, we will walk through the course again and read off
+    # maps in order, with their data. 
+    # (If in the future people decide not to be cumulative, only add
+    #  the counts to the parent map.)
+    # For convenience, "totalParts" is also "totalPoints" when we're looking
+    #  at points; I can't come up with a variable name that makes sense
+    #  equally for both cases.
+
+    my $totalParts = 0; my $totalPossible = 0; my $totalRight = 0;
+    my $totalAttempted = 0;
+    my $now = time();
+    my $topLevelParts = 0; my $topLevelRight = 0; my $topLevelAttempted = 0;
+
+    # Pre-run: Count parts correct
     while ( $depth > 0 ) {
         if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
         if ($curRes == $iterator->END_MAP()) { $depth--; }
 
-        if (ref($curRes) && $curRes->is_problem()) {
-            my $title = $curRes->compTitle();
-            $r->print('    <tr>');
+        if (ref($curRes) && $curRes->is_gradable() && !$curRes->randomout && 
+            ($curRes->deeplink ne 'absent'))
+        {
+            # Get number of correct, incorrect parts
+            my $parts = $curRes->parts();
+            my $partsRight = 0;
+	    my $partsCount = 0;
+	    my $partsAttempted = 0;
             my $stack = $iterator->getStack();
-            my $src = Apache::lonnavmaps::getLinkForResource($stack);
-            my $srcHasQuestion = $src =~ /\?/;
-            my $link = $src.
-                ($srcHasQuestion?'&':'?') .
-                'symb='.&Apache::lonnet::escape($curRes->symb()).
-                '"';
-            $r->print("<td><a href=\"$link\">$title</td>");
             
-            my $avail = 0;
-            my $score = 0;
-            my $parts = $curRes->parts();
             for my $part (@{$parts}) {
-                my $partAvail = $curRes->weight($part);
-                my $partScore = $curRes->awarded($part) * $partAvail;
-                $avail += $partAvail;
-                $score += $partScore;
+		my $dateStatus = $curRes->getDateStatus($part);
+                my $weight = $curRes->weight($part);
+                my $problemstatus = $curRes->problemstatus($part);
+
+                if ($curRes->solved($part) eq 'excused') {
+                    next;
+                }
+		if ($showPoints) {
+		    my $score = 0;
+		    # If we're not telling status and the answer date isn't passed yet, 
+		    # it's an "attempted" point
+		    if ((($problemstatus eq 'no') ||
+                         ($problemstatus eq 'no_feedback_ever')) &&
+			($dateStatus != $curRes->ANSWER_OPEN)) {
+			my $status = $curRes->simpleStatus($part);
+			if ($status == $curRes->ATTEMPTED) {
+			    $partsAttempted += $weight;
+			    $totalAttempted += $partsAttempted;
+			}
+		    } else {
+			$score = &Apache::grades::compute_points($weight, $curRes->awarded($part));
+		    }
+		    $partsRight += $score;
+		    $totalRight += $score;
+		    $partsCount += $weight;
+
+                    $curRes->{DATA}->{PROB_SCORE}  += $score;
+                    $curRes->{DATA}->{PROB_WEIGHT} += $weight;
+
+		    if ($curRes->opendate($part) < $now) {
+			$totalPossible += $weight;
+                        $curRes->{DATA}->{PROB_POSSIBLE} += $weight;
+		    }
+		    $totalParts += $weight;
+		} else {
+		    my $status = $curRes->simpleStatus($part);
+		    my $thisright = 0;
+		    $partsCount++;
+		    if ($status == $curRes->CORRECT ||
+			$status == $curRes->PARTIALLY_CORRECT ) {
+			$partsRight++;
+			$totalRight++;
+			$thisright = 1;
+		    }
+
+		    if ($status == $curRes->ATTEMPTED) {
+			$partsAttempted++;
+			$totalAttempted++;
+		    }
+		    
+		    $totalParts++;
+		    if ($curRes->opendate($part) < $now) {
+			$totalPossible++;
+		    }
+		}
             }
+
+            if ($depth == 1) { # in top-level only
+		$topLevelParts += $partsCount;
+		$topLevelRight += $partsRight;
+		$topLevelAttempted += $partsAttempted;
+	    }
+
+            # Crawl down stack and record parts correct and total
+            for my $res (@{$stack}) {
+                if (ref($res) && $res->is_map()) {
+                    if (!defined($res->{DATA}->{CHILD_PARTS})) {
+                        $res->{DATA}->{CHILD_PARTS} = 0;
+                        $res->{DATA}->{CHILD_CORRECT} = 0;
+			$res->{DATA}->{CHILD_ATTEMPTED} = 0;
+                    }
+                    
+                    $res->{DATA}->{CHILD_PARTS} += $partsCount;
+                    $res->{DATA}->{CHILD_CORRECT} += $partsRight;
+		    $res->{DATA}->{CHILD_ATTEMPTED} += $partsAttempted;
+                }
+            }
+        }
+        $curRes = $iterator->next();
+    }
+    return ($navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted);
+}
+
+#
+# Outputting everything.
+#
+
+sub outputTable {
+
+    my ($r,$showPoints,$notshowTotals,
+           $navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted)=@_;
+
+    my @start = (255, 255, 192);
+    my @end   = (0, 192, 0);
+
+    my $indentString = '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
+
+    # Second pass: Print the maps.
+    $r->print(&Apache::loncommon::start_data_table()
+             .&Apache::loncommon::start_data_table_header_row()
+             .'<th>'.&mt('Folder').'</th>');
+    my $title = &mt($showPoints ? "Points Scored" : "Done");
+    if ($totalAttempted) {
+        $title .= " / " . &mt("Attempted");
+    }
+    $r->print("<th>$title".($notshowTotals?'':" / ".&mt('Total')).'</th>'
+             .&Apache::loncommon::end_data_table_header_row());
+#
+# Output of folder scores
+#
+
+    my $iterator = $navmap->getIterator(undef, undef, undef, 1);
+    my $depth = 1;
+    $iterator->next(); # ignore first BEGIN_MAP
+    my $curRes = $iterator->next();
+
+    while ($depth > 0) {
+        if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
+        if ($curRes == $iterator->END_MAP()) { $depth--; }
+
+        if (ref($curRes) && $curRes->is_map()) {
+            my $title = $curRes->compTitle();
             
-            $r->print("<td align=\"right\">$score / $avail</td></tr>\n");
-            $totalAvailable += $avail;
-            $total += $score;
+            my $correct = $curRes->{DATA}->{CHILD_CORRECT};
+            my $total = $curRes->{DATA}->{CHILD_PARTS};
+	    my $attempted = $curRes->{DATA}->{CHILD_ATTEMPTED};
+
+            if ($total > 0) {
+                my $ratio;
+                $ratio = $correct / $total;
+                my $color = &mixColors(\@start, \@end, $ratio);
+                $r->print(&Apache::loncommon::start_data_table_row()
+                         .'<td style="background-color:'.$color.';">');
+                
+		my $thisIndent = '';
+                for (my $i = 1; $i < $depth; $i++) { $thisIndent .= $indentString; }
+                
+                $r->print("$thisIndent$title</td>");
+		if ($totalAttempted) {
+		    $r->print('<td valign="top">'
+                             .$thisIndent
+                             .'<span class="LC_nobreak">'
+                             .$correct.' / '.$attempted.($notshowTotals?'':' / '.$total)
+                             .'</span></td>'
+                             .&Apache::loncommon::end_data_table_row()
+                    );
+		} else {
+		    $r->print('<td valign="top">'
+                             .$thisIndent
+                             .'<span class="LC_nobreak">'
+                             .$correct.($notshowTotals?'':' / '.$total)
+                             .'</span></td>'
+                             .&Apache::loncommon::end_data_table_row());
+		}
+            }
         }
 
         $curRes = $iterator->next();
     }
 
-    $r->print("<td colspan=\"2\" align=\"right\">Total Points Scored: <b>$total</b>");
-    $r->print("<br />Total Points Available: <b>$totalAvailable</b>");
-    $r->print("</td></tr></table>\n\n");
+    # If there were any problems at the top level, print an extra "catchall"
+    if ($topLevelParts > 0) {
+        my $ratio = $topLevelRight / $topLevelParts;
+        my $color = &mixColors(\@start, \@end, $ratio);
+        $r->print(&Apache::loncommon::start_data_table_row()
+                 .'<td style="background-color:'.$color.';">');
+        $r->print(&mt("Problems Not Contained In A Folder")."</td><td>");
+        $r->print("$topLevelRight / $topLevelParts</td>"
+                 .&Apache::loncommon::end_data_table_row());
+    }
+
+#
+# show totals (if applicable), close table
+#
+    if ($showPoints) {
+        my $maxHelpLink = &Apache::loncommon::help_open_topic("Quick_Grades_Possibly_Correct");
 
-    $r->print("</body></html>");
+        $title = $showPoints ? "Points" : "Parts Done";
+        my $totaltitle = $showPoints ? &mt("Awarded Total Points") : &mt("Total Parts Done");
+        $r->print(&Apache::loncommon::start_data_table_row()
+                 .'<td colspan="2" align="right">'.$totaltitle.': <b>'.$totalRight.'</b><br />');
+        $r->print(&mt('Max Possible To Date')." $maxHelpLink: <b>$totalPossible</b><br />");
+        $title = $showPoints ? "Points" : "Parts";
+        $r->print(&mt("Total $title In Course").': <b>'.$totalParts.'</b></td>'
+                 .&Apache::loncommon::end_data_table_row());
+    }
 
-    return OK;
+    $r->print(&Apache::loncommon::end_data_table());
+}
+
+#
+# === Outputting category-based grades.
+#
+# $category{'order'}: output order of categories by id
+# $category{'all'}: complete list of all categories 
+# $category{$id.'_name'}: display-name of category
+#
+
+sub outputCategories {
+
+    my ($r,$showPoints,$notshowTotals,
+           $navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted)=@_;
+# Take care of storing and retrieving categories
+
+    my $cangrade=&Apache::lonnet::allowed('mgr');
+
+    my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+    my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+    my %categories=();
+# Loading old categories
+    %categories=&Apache::lonnet::dump('grading_categories',$cdom,$cnum);
+# Storing
+    if (($cangrade) && (($env{'form.storechanges'}) || ($env{'form.storemove'} ne '') || ($env{'form.cmd'} ne ''))) {
+# Process the changes
+        %categories=&process_category_edits($r,$cangrade,%categories);
+# Actually store
+        &Apache::lonnet::put('grading_categories',\%categories,$cdom,$cnum);
+    }
+# new categories loaded now
+    &output_category_table($r,$cangrade,$navmap,1,%categories);
+#
+    if ($cangrade) {
+        $r->print(&Apache::loncommon::resourcebrowser_javascript().
+                  '<input type="hidden" name="storemove" value="" />'.
+                  '<input type="hidden" name="cmd" value="" />'.
+                  '<input type="hidden" name="resourcesymb" value="" />'.
+                  '<input type="submit" name="storechanges" value="'.&mt("Save changes to grading categories").'" />'.
+                  '<script>function storecmd (cmd) { document.quickform.cmd.value=cmd; document.quickform.submit(); }</script>');
+    }
+}
+
+#
+# Get data for all symbs
+#
+
+sub dumpdata {
+    my ($navmap)=@_;
+    my %returndata=();
+
+# Run through the map and get all data
+
+    my $iterator = $navmap->getIterator(undef, undef, undef, 1);
+    my $depth = 1;
+    $iterator->next(); # ignore first BEGIN_MAP
+    my $curRes = $iterator->next();
+
+    while ($depth > 0) {
+        if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
+        if ($curRes == $iterator->END_MAP()) { $depth--; }
+        if (ref($curRes)) {
+            if ($curRes->is_map()) {
+                $returndata{$curRes->symb()}='folder:'.$curRes->{DATA}->{CHILD_PARTS}.':'.$curRes->{DATA}->{CHILD_ATTEMPTED}.':'.$curRes->{DATA}->{CHILD_CORRECT};
+            } else {
+                $returndata{$curRes->symb()}='res:'.$curRes->{DATA}->{PROB_WEIGHT}.':'.$curRes->{DATA}->{PROB_POSSIBLE}.':'.$curRes->{DATA}->{PROB_SCORE};
+            } 
+        }
+        $curRes = $iterator->next();
+    }
+    return %returndata;
+}
+
+#
+# Process editing commands, update category hash
+#
+
+sub process_category_edits {
+    my ($r,$cangrade,%categories)=@_;
+    unless ($cangrade) { return %categories; }
+# First store everything
+    foreach my $id (split(/\,/,$categories{'order'})) {
+# Set names, types, and weight (there is only one of each per category)
+        %categories=&set_category_name($cangrade,$id,$env{'form.name_'.$id},%categories);
+        %categories=&set_category_total($cangrade,$id,$env{'form.totaltype_'.$id},$env{'form.total_'.$id},%categories);
+        %categories=&set_category_weight($cangrade,$id,$env{'form.weight_'.$id},%categories);
+        %categories=&set_category_displayachieved($cangrade,$id,$env{'form.displayachieved_'.$id},%categories);
+# Set values for category rules (before names may change)
+        %categories=&set_category_rules($cangrade,$id,%categories);
+    }
+
+# Now deal with commands
+    my $cmd=$env{'form.cmd'};
+    if ($cmd eq 'createnewcat') {
+        %categories=&make_new_category($r,$cangrade,undef,%categories);
+    } elsif ($cmd=~/^up\_(.+)$/) {
+        %categories=&move_up_category($1,$cangrade,%categories);
+    } elsif ($cmd=~/^down\_(.+)$/) {
+        %categories=&move_down_category($1,$cangrade,%categories);
+    } elsif ($cmd=~/^delcat\_(.+)$/) {
+        %categories=&del_category($1,$cangrade,%categories);
+    } elsif ($cmd=~/^addcont\_(.+)$/) {
+        %categories=&add_category_content($1,$cangrade,$env{'form.resourcesymb'},%categories);
+    } elsif ($cmd=~/^delcont\_(.+)\_\_\_\_\_\_(.+)$/) {
+        %categories=&del_category_content($1,$cangrade,$2,%categories);
+    } elsif ($cmd=~/^newrule\_(.+)$/) {
+        %categories=&add_calculation_rule($1,$cangrade,':',%categories);
+    } elsif ($cmd=~/^delrule\_(.+)\_\_\_\_\_\_(.*)$/) {
+        %categories=&del_calculation_rule($1,$cangrade,$2,%categories);
+    }
+# Move to a new position
+    my $moveid=$env{'form.storemove'};
+    if ($moveid) {
+        %categories=&move_category($moveid,$cangrade,$env{'form.newpos_'.$moveid},%categories);
+    } 
+    return %categories;
+}
+
+#
+# Output the table
+#
+
+sub output_category_table {
+    my ($r,$cangrade,$navmaps,$output,%categories)=@_;
+    
+    my $totalweight=0;
+    my $totalpoints=0;
+
+    if ($output) { 
+       $r->print(&Apache::loncommon::start_data_table());
+#
+       &output_category_table_header($r,$cangrade);
+    }
+#
+    my @order=split(/\,/,$categories{'order'});
+#
+    my %performance=&dumpdata($navmaps);
+    my $maxpos=$#order;
+    for (my $i=0;$i<=$maxpos;$i++) {
+        my ($correct,$possible,$type,$weight)=&output_and_calc_category($r,$cangrade,$navmaps,$order[$i],$i,$maxpos,\%performance,$output,%categories);
+        unless ($possible) { next; }
+        $totalpoints+=$weight*$correct/$possible;
+        $totalweight+=$weight;
+    }
+#
+    my $perc=0;
+    if ($totalweight) { $perc=100.*$totalpoints/$totalweight; }
+
+    if ($output) { 
+        &bottom_line_category($r,$cangrade,$perc); 
+        $r->print(&Apache::loncommon::end_data_table());
+    }
+    return $perc;
+}
+
+sub output_category_table_header {
+    my ($r,$cangrade)=@_;
+    $r->print(&Apache::loncommon::start_data_table_header_row());
+    if ($cangrade) {
+        $r->print('<th colspan="2">'.&mt("Move").'</th><th>'.&mt('Action').'</th>');
+    }
+    $r->print('<th>'.&mt('Category').'</th>'.
+              '<th>'.&mt('Contents').'</th>'.
+              '<th>'.&mt('Total Points').'</th>'.
+              '<th>'.&mt('Calculation').'</th>'.
+              '<th>'.&mt('Relative Weight').'</th>'.
+              '<th>'.&mt('Achieved').'</th>');
+    $r->print(&Apache::loncommon::end_data_table_header_row());
+}
+
+
+#
+# Output one category to table
+#
+
+sub output_and_calc_category {
+    my ($r,$cangrade,$navmaps,$id,$currentpos,$maxpos,$performance,$output,%categories)=@_;
+    
+    if ($output) { $r->print("\n".&Apache::loncommon::start_data_table_row()); }
+
+    if ($output && $cangrade) {
+        my $iconpath = &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL') . "/");
+        my %lt=&Apache::lonlocal::texthash(
+           'up' => 'Move Up',
+           'dw' => 'Move Down');
+
+        $r->print(<<ENDMOVE);
+<td>
+<div class="LC_docs_entry_move">
+  <a href='javascript:storecmd("up_$id");'>
+    <img src="${iconpath}move_up.gif" alt='$lt{'up'}' class="LC_icon" />
+  </a>
+</div>
+<div class="LC_docs_entry_move">
+  <a href='javascript:storecmd("down_$id");'>
+    <img src="${iconpath}move_down.gif" alt='$lt{'dw'}' class="LC_icon" />
+  </a>
+</div>
+</td>
+ENDMOVE
+        $r->print("\n<td>\n<select name='newpos_$id' onchange='this.form.storemove.value=\"$id\";this.form.submit()'>");
+        for (my $i=0;$i<=$maxpos;$i++) {
+            if ($i==$currentpos) {
+                $r->print('<option value="" selected="selected">('.$i.')</option>');
+            } else {
+                $r->print('<option value="'.$i.'">'.$i.'</option>');
+            }
+        }
+        $r->print("\n</select>\n</td>\n");
+        $r->print('<td><a href="javascript:storecmd(\'delcat_'.$id.'\');">'.&mt('Delete').'</a></td>');
+        $r->print('<td><input type="text" name="name_'.$id.
+                  '" value="'.&Apache::lonhtmlcommon::entity_encode($categories{$id.'_name'}).'" /></td>');
+    } elsif ($output) {
+        $r->print('<td>'.$categories{$id.'_name'}.'</td>');
+    }
+# Content display and summing up of points
+    my $totalpossible=0;
+    my $totalcorrect=0;
+    my @individual=();
+    if ($output) { $r->print('<td><ul>'); }
+    foreach my $contentid (split(/\,/,$categories{$id.'_content'})) {
+        my ($type,$possible,$attempted,$correct)=split(/\:/,$$performance{$contentid});
+        $totalpossible+=$possible;
+        $totalcorrect+=$correct;
+        if ($possible>0) { push(@individual,"$possible:$correct"); }
+        if ($output) {
+           $r->print('<li>');
+           $r->print(&Apache::lonnet::gettitle($contentid).' ('.&numberout($correct).'/'.&numberout($possible).')');
+           if ($cangrade) {
+              $r->print(' <a href="javascript:storecmd(\'delcont_'.$id.'______'.$contentid.'\');">'.&mt('Delete').'</a>');
+           }
+           $r->print('</li>');
+        }
+    }
+    if ($output) {
+       $r->print('</ul>');
+       if ($cangrade) {
+           $r->print('<br />'.&Apache::loncommon::selectresource_link('quickform','addcont_'.$id,&mt('Add Problem or Folder')).'<br />');
+       }
+       $r->print('<p><b>'.&mt('Total raw points: [_1]/[_2]',&numberout($totalcorrect),&numberout($totalpossible)).'</b></p>');
+       $r->print('</td>'); 
+    }
+# Total
+    if ($output) { $r->print('<td>'); }
+    if ($cangrade) {
+       if ($output) { 
+          $r->print(
+                  '<select name="totaltype_'.$id.'">'.
+                  '<option value="default"'.($categories{$id.'_totaltype'} eq 'default'?' selected="selected"':'').'>'.&mt('default').'</option>'.
+                  '<option value="typein"'.($categories{$id.'_totaltype'} eq 'typein'?' selected="selected"':'').'>'.&mt('Type-in value').'</option>'.
+                  '</select>'.
+                  '<input type="text" size="4" name="total_'.$id.
+                  '" value="'.&Apache::lonhtmlcommon::entity_encode($categories{$id.'_total'}).'" />'); 
+       }
+    } else {
+       if ($output) {
+          $r->print('<td>'.($categories{$id.'_totaltype'} eq 'default'?&mt('default'):$categories{$id.'_total'}));
+       }
+    }
+# Adjust total points
+    if ($categories{$id.'_totaltype'} eq 'typein') {
+       $totalpossible=1.*$categories{$id.'_total'};
+    }
+    if ($output) {
+       $r->print('<p><b>'.&mt('Adjusted raw points: [_1]/[_2]',&numberout($totalcorrect),&numberout($totalpossible)).'</b></p>');
+    }
+
+
+# Calculation
+    if ($output) { $r->print('<td><ul>'); }
+    foreach my $calcrule (split(/\,/,$categories{$id.'_calculations'})) {
+        if ($output) { $r->print('<li>'); }
+        my ($code,$value)=split(/\:/,$calcrule);
+        if ($output) { $r->print(&pretty_prt_rule($cangrade,$id,$code,$value)); }
+        if ($cangrade) {
+           if ($output) { $r->print(' <a href="javascript:storecmd(\'delrule_'.$id.'______'.$code.'\');">'.&mt('Delete').'</a>'); }
+        }
+        if ($code eq 'capabove') {
+            if ($totalpossible>0) {
+                if ($totalcorrect/$totalpossible>$value/100.) {
+                    $totalcorrect=$totalpossible*$value/100.;
+                }
+            }
+        } elsif ($code eq 'capbelow') {
+            if ($totalpossible>0) {
+                if ($totalcorrect/$totalpossible<$value/100.) {
+                    $totalcorrect=$totalpossible*$value/100.;
+                }
+            }
+        } elsif ($code eq 'droplow') {
+            ($totalpossible,$totalcorrect,@individual)=&drop(0,0,$value,@individual);
+        } elsif ($code eq 'drophigh') {
+            ($totalpossible,$totalcorrect,@individual)=&drop(1,0,$value,@individual);
+        } elsif ($code eq 'droplowperc') {
+            ($totalpossible,$totalcorrect,@individual)=&drop(0,1,$value,@individual);
+        } elsif ($code eq 'drophighperc') {
+            ($totalpossible,$totalcorrect,@individual)=&drop(1,1,$value,@individual);
+        }
+        if ($output) { $r->print('</li>'); }
+    }
+# Re-adjust total points if force total
+    if ($categories{$id.'_totaltype'} eq 'typein') {
+       $totalpossible=1.*$categories{$id.'_total'};
+    }
+
+    if ($output) { 
+        $r->print('</ul>'); 
+        if ($cangrade) { $r->print('<br />'.&new_calc_rule_form($id)); }
+        $r->print('<p><b>'.&mt('Calculated points: [_1]/[_2]',&numberout($totalcorrect),&numberout($totalpossible)).'</b></p>');
+        $r->print('</td>'); 
+    }
+#
+# Prepare for export
+#
+# Weight
+    my $weight=$categories{$id.'_weight'};
+    unless (1.*$weight>0) { $weight=0; }
+    if ($cangrade) {
+       if ($output) { 
+          $r->print('<td>'.
+                  '<input type="text" size="4" name="weight_'.$id.
+                  '" value="'.&Apache::lonhtmlcommon::entity_encode($weight).'" /></td>');
+       }
+    } else {
+       if ($output) {
+          $r->print('<td>'.$weight.'</td>');
+       }
+    }
+# Achieved
+    my $type=$categories{$id.'_displayachieved'};
+    unless (($type eq 'percent') || ($type eq 'points')) { $type='points'; }
+    if ($output) { $r->print('<td>'); }
+    if ($cangrade) {
+        if ($output) {
+           $r->print('<select name="displayachieved_'.$id.'">'.
+                  '<option value="percent"'.($type eq 'percent'?' selected="selected"':'').'>'.&mt('percent').'</option>'.
+                  '<option value="points"'.($type eq 'points'?' selected="selected"':'').'>'.&mt('points').'</option>'.
+                  '</select>');
+        }
+    }
+    if ($output) {
+        $r->print('<p><b>');
+        if ($type eq 'percent') {
+            my $perc='---';
+            if ($totalpossible) {
+                $perc=100.*$totalcorrect/$totalpossible;
+            }
+            $r->print(&mt('[_1] percent',&numberout($perc)));
+        } else {
+            $r->print(&mt('[_1]/[_2] points',&numberout($totalcorrect),&numberout($totalpossible)));
+        }
+        $r->print('</b></p>');
+    }
+    if ($output) { $r->print('</td>'); }
+
+    return ($totalcorrect,$totalpossible,$type,$weight);
+}
+
+#
+# Drop folders and problems
+#
+
+sub drop {
+    my ($high,$percent,$n,@individual)=@_;
+# Sort assignments by points or percent
+    my @newindividual=sort {
+        my ($pa,$ca)=split(/\:/,$a);
+        my ($pb,$cb)=split(/\:/,$b);
+        if ($percent) {
+            my $perca=0;
+            if ($pa>0) { $perca=$ca/$pa; }
+            my $percb=0;
+            if ($pb>0) { $percb=$cb/$pb; }
+            $perca<=>$percb;
+        } else {
+            $ca<=>$cb;
+        }
+    } @individual;
+# Drop the ones we don't want
+    if ($#newindividual>=$n) {
+        if ($high) {
+           splice(@newindividual,$#newindividual+1-$n,$n);
+        } else {
+           splice(@newindividual,0,$n);
+        }
+    } else {
+        @newindividual=();
+    }
+# Re-calculate how many points possible and achieved
+    my $newpossible=0;
+    my $newcorrect=0;
+    for my $score (@newindividual) {
+        my ($thispossible,$thiscorrect)=(split(/\:/,$score));
+        $newpossible+=$thispossible;
+        $newcorrect+=$thiscorrect;
+    }
+    return ($newpossible,$newcorrect,@newindividual);
+} 
+#
+# Bottom line with grades
+#
+
+sub bottom_line_category {
+    my ($r,$cangrade,$perc)=@_;
+    $r->print(&Apache::loncommon::start_data_table_row());
+    if ($cangrade) {
+        $r->print('<td colspan="3"><a href="javascript:storecmd(\'createnewcat\');">'.&mt('Create New Category').'</a></td>');
+    }
+    $r->print('<td colspan="6"><b>'.&mt('Total: [_1] percent',&numberout($perc)).'</b></td>');
+}
+
+sub numberout {
+    my ($number)=@_;
+    my $printout=sprintf("%.3f", $number);
+    $printout=~s/0+$//;
+    $printout=~s/\.$//;
+    return $printout;
+}
+#
+# Make one new category
+#
+
+sub make_new_category {
+    my ($r,$cangrade,$ordernum,%categories)=@_;
+    unless ($cangrade) { return %categories; }
+# Generate new ID
+    my $id=time.'_'.$$.'_'.rand(10000);
+# Add new ID to list of all IDs ever created in this course
+    $categories{'all'}.=','.$id;
+    $categories{'all'}=~s/^\,//;
+# Add new ID to ordered list of displayed and evaluated categories
+    $categories{'order'}.=','.$id;
+    $categories{'order'}=~s/^\,//;
+# Move it into desired space
+    if (defined($ordernum)) {
+        %categories=&move_category($id,$cangrade,$ordernum,%categories);
+    }
+    $categories{$id.'_weight'}=0;
+    $categories{$id.'_totaltype'}='default';
+    $categories{$id.'_displayachieved'}='percent';
+    return %categories;
+}
+
+
+# === Calculation Rule Editing
+
+sub category_rule_codes {
+    return &Apache::lonlocal::texthash(
+                'droplowperc'  => 'Drop N lowest grade percentage problems/folders',
+                'drophighperc' => 'Drop N highest grade percentage problems/folderss',
+                'droplow'  => 'Drop N lowest point problems/folders',
+                'drophigh' => 'Drop N highest point problems/folders',
+                'capabove' => 'Cap percentage above N percent',
+                'capbelow' => 'Cap percentage below N percent');
+}
+
+sub pretty_prt_rule {
+    my ($cangrade,$id,$code,$value)=@_;
+    my $cid=$id.'_'.$code;
+    my %lt=&category_rule_codes();
+    my $ret='<span class="LC_nobreak">';
+    if ($cangrade) {
+        $ret.='<select name="sel_'.$cid.'">';
+        foreach my $calc (''=>'',sort(keys(%lt))) {
+            $ret.='<option value="'.$calc.'"'.($calc eq $code?' selected="selected"':'').' />'.$lt{$calc}.'</input>';
+        }
+        $ret.='</select> N=<input type="text" size="5" name="val_'.$cid.'" value="'.$value.'" /></span>';
+    } else {
+        $ret.=$lt{$code}.'; N='.$value;
+    }
+    $ret.='</span>';
+    return $ret;
+}
+
+sub new_calc_rule_form {
+    my ($id)=@_;
+    return '<a href="javascript:storecmd(\'newrule_'.$id.'\');">'.&mt('New Calculation Rule').'</a>';
+}
+
+#
+# Add a calculation rule
+#
+
+sub add_calculation_rule {
+    my ($id,$cangrade,$newcontent,%categories)=@_;
+    unless ($cangrade) { return %categories; }
+    my %newcontent=($newcontent => 1);
+    foreach my $current (split(/\,/,$categories{$id.'_calculations'})) {
+        $newcontent{$current}=1;
+    }
+    $categories{$id.'_calculations'}=join(',',sort(keys(%newcontent)));
+    return %categories;
+}
+
+#
+# Delete a calculation rule
+#
+
+sub del_calculation_rule {
+    my ($id,$cangrade,$delcontent,%categories)=@_;
+    unless ($cangrade) { return %categories; }
+    my @newcontent=();
+    foreach my $current (split(/\,/,$categories{$id.'_calculations'})) {
+        unless ($current=~/^\Q$delcontent\E\:/) {
+            push(@newcontent,$current);
+        }
+    }
+    $categories{$id.'_calculations'}=join(',',@newcontent);
+    return %categories;
+}
+
+sub set_category_rules {
+    my ($cangrade,$id,%categories)=@_;
+    unless ($cangrade) { return %categories; }
+    my %lt=&category_rule_codes();
+    my @newrules=();
+    foreach my $code ('',(keys(%lt))) {
+        if ($env{'form.sel_'.$id.'_'.$code}) {
+            push(@newrules,$env{'form.sel_'.$id.'_'.$code}.':'.$env{'form.val_'.$id.'_'.$code});
+        }
+    }
+    $categories{$id.'_calculations'}=join(',',sort(@newrules));
+    return %categories;
+}
+
+
+# === Category Editing
+
+#
+# Add to category content
+#
+
+sub add_category_content {
+    my ($id,$cangrade,$newcontent,%categories)=@_;
+    unless ($cangrade) { return %categories; }
+    &Apache::lonnet::logthis("In here $newcontent");
+    my %newcontent=($newcontent => 1);
+    foreach my $current (split(/\,/,$categories{$id.'_content'})) {
+        $newcontent{$current}=1;
+    }
+    $categories{$id.'_content'}=join(',',sort(keys(%newcontent)));
+    return %categories;
+}
+
+#
+# Delete from category content
+#
+
+sub del_category_content {
+    my ($id,$cangrade,$delcontent,%categories)=@_;
+    unless ($cangrade) { return %categories; }
+    my @newcontent=();
+    foreach my $current (split(/\,/,$categories{$id.'_content'})) {
+        unless ($current eq $delcontent) {
+            push(@newcontent,$current);
+        }
+    }
+    $categories{$id.'_content'}=join(',',@newcontent);
+    return %categories;
+}
+
+#
+# Delete category
+#
+
+sub del_category {
+    my ($id,$cangrade,%categories)=@_;
+    unless ($cangrade) { return %categories; }
+    my @neworder=();
+    foreach my $currentid (split(/\,/,$categories{'order'})) {
+        unless ($currentid eq $id) {
+            push(@neworder,$currentid);
+        }
+    }
+    $categories{'order'}=join(',',@neworder);
+    return %categories;
+}
+
+#
+# Move category up
+#
+
+sub move_up_category {
+    my ($id,$cangrade,%categories)=@_;
+    my $currentpos=&current_pos_category($id,%categories);
+    if ($currentpos<1) { return %categories; }
+    return &move_category($id,$cangrade,$currentpos-1,%categories);
+}
+
+#
+# Move category down
+#
+
+sub move_down_category {
+    my ($id,$cangrade,%categories)=@_;
+    my $currentpos=&current_pos_category($id,%categories);
+    my @order=split(/\,/,$categories{'order'});
+    if ($currentpos>=$#order) { return %categories; }
+    return &move_category($id,$cangrade,$currentpos+1,%categories);
+}
+
+#
+# Move a category to a desired position n the display order
+#
+
+sub move_category {
+    my ($id,$cangrade,$ordernum,%categories)=@_;
+    unless ($cangrade) { return %categories; }
+    my @order=split(/\,/,$categories{'order'});
+# Where is the index currently?
+    my $currentpos=&current_pos_category($id,%categories);
+    if (defined($currentpos)) {
+        if ($currentpos<$ordernum) {
+# This is moving to a higher index
+# ....X1234....
+# ....1234X....
+            for (my $i=$currentpos;$i<$ordernum;$i++) {
+                $order[$i]=$order[$i+1];
+            }
+            $order[$ordernum]=$id;
+        }
+        if ($currentpos>$ordernum) {
+# This is moving to a lower index
+# ....1234X....
+# ....X1234....
+            for (my $i=$currentpos;$i>$ordernum;$i--) {
+                $order[$i]=$order[$i-1];
+            }
+            $order[$ordernum]=$id;
+        }
+    }
+    $categories{'order'}=join(',',@order);
+    return %categories;
+}
+
+#
+#  Find current postion of a category in the order
+#
+
+sub current_pos_category {
+    my ($id,%categories)=@_;
+    my @order=split(/\,/,$categories{'order'});
+    for (my $i=0;$i<=$#order;$i++) {
+        if ($order[$i] eq $id) { return $i; }
+    }
+# not found
+    return undef;
+}
+
+#
+# Set name of a category
+#
+sub set_category_name {
+    my ($cangrade,$id,$name,%categories)=@_;
+    unless ($cangrade) { return %categories; }
+    $categories{$id.'_name'}=$name;
+    return %categories;
+}
+
+#
+# Set total of a category
+#
+sub set_category_total {
+    my ($cangrade,$id,$totaltype,$total,%categories)=@_;
+    unless ($cangrade) { return %categories; }
+    if (($categories{$id.'_total'} eq '') && ($total=~/\d/)) {
+        $totaltype='typein';
+    }
+    $categories{$id.'_totaltype'}=$totaltype;
+    if ($totaltype eq 'default') {
+        $categories{$id.'_total'}='';
+    } else {
+        $total=~s/\D//gs;
+        unless ($total) { $total=0; }
+        $categories{$id.'_total'}=$total;
+    }
+    return %categories;
+}
+
+sub set_category_weight {
+    my ($cangrade,$id,$weight,%categories)=@_;
+    unless ($cangrade) { return %categories; }
+    $weight=~s/\D//gs;
+    unless ($weight) { $weight=0; }
+    $categories{$id.'_weight'}=$weight;
+    return %categories;
+}
+
+sub set_category_displayachieved {
+    my ($cangrade,$id,$value,%categories)=@_;
+    unless ($cangrade) { return %categories; }
+    unless (($value eq 'percent') || ($value eq 'points')) { $value='percent'; }
+    $categories{$id.'_displayachieved'}=$value;
+    return %categories;
+}
+
+
+#
+# === end category-related
+#
+#
+# Pass this two refs to arrays for the start and end color, and a number
+# from 0 to 1 for how much of the latter you want to mix in. It will
+# return a string ready to show ("#FFC309");
+
+sub mixColors {
+    my $start = shift;
+    my $end = shift;
+    my $ratio = shift;
+    
+    my ($a,$b);
+    my $final = "";
+    $a = $start->[0]; $b = $end->[0];
+    my $mix1 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
+    $a = $start->[1]; $b = $end->[1];
+    my $mix2 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
+    $a = $start->[2]; $b = $end->[2];
+    my $mix3 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
+
+    $final = sprintf "%02x%02x%02x", $mix1, $mix2, $mix3;
+    return "#" . $final;
 }
 
 1;