--- loncom/interface/Attic/lonspreadsheet.pm	2001/09/11 00:05:13	1.60
+++ loncom/interface/Attic/lonspreadsheet.pm	2001/10/16 19:27:19	1.67
@@ -6,7 +6,7 @@
 # 01/01/01,02/01,03/01,19/01,20/01,22/01,
 # 03/05,03/08,03/10,03/12,03/13,03/15,03/17,
 # 03/19,03/20,03/21,03/27,04/05,04/09,
-# 07/09,07/14,07/21,09/01,09/10 Gerd Kortemeyer
+# 07/09,07/14,07/21,09/01,09/10,9/11,9/12,9/13,9/14,9/17 Gerd Kortemeyer
 
 package Apache::lonspreadsheet;
             
@@ -670,47 +670,34 @@ sub rown {
     my ($safeeval,$n)=@_;
     my $defaultbg;
     my $rowdata='';
+    my $dataflag=0;
     unless ($n eq '-') {
        $defaultbg=((($n-1)/5)==int(($n-1)/5))?'#E0E0':'#FFFF';
     } else {
        $defaultbg='#E0FF';
     }
-    if ((($n-1)/25)==int(($n-1)/25)) {
-        my $what='Student';
-        if (&gettype($safeeval) eq 'assesscalc') {
-	    $what='Item';
-	} elsif (&gettype($safeeval) eq 'studentcalc') {
-            $what='Assessment';
-        }
-	$rowdata.="</table>\n<br><table border=2>".
-        '<tr><td>&nbsp;<td>'.$what.'</td>';
-        map {
-           $rowdata.='<td>'.$_.'</td>';
-        } ('A','B','C','D','E','F','G','H','I','J','K','L','M',
-           'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
-           'a','b','c','d','e','f','g','h','i','j','k','l','m',
-           'n','o','p','q','r','s','t','u','v','w','x','y','z');
-        $rowdata.='</tr>';
-    }
     $rowdata.="\n<tr><td><b><font size=+1>$n</font></b></td>";
     my $showf=0;
     my $proc;
     my $maxred;
-    if (&gettype($safeeval) eq 'studentcalc') {
+    my $sheettype=&gettype($safeeval);
+    if ($sheettype eq 'studentcalc') {
         $proc='&outrowassess';
         $maxred=26;
     } else {
         $proc='&outrow';
     }
-    if (&gettype($safeeval) eq 'assesscalc') {
+    if ($sheettype eq 'assesscalc') {
         $maxred=1;
     } else {
         $maxred=26;
     }
-    if ($n eq '-') { $proc='&templaterow'; $n=-1; }
+    if ($n eq '-') { $proc='&templaterow'; $n=-1; $dataflag=1; }
     map {
        my $bgcolor=$defaultbg.((($showf-1)/5==int(($showf-1)/5))?'99':'DD');
        my ($fm,$vl)=split(/\_\_\_eq\_\_\_/,$_);
+       if ((($vl ne '') || ($vl eq '0')) &&
+           (($showf==1) || ($sheettype ne 'studentcalc'))) { $dataflag=1; }
        if ($showf==0) { $vl=$_; }
        if ($showf<=$maxred) { $bgcolor='#FFDDDD'; }
        if (($n==0) && ($showf<=26)) { $bgcolor='#CCCCFF'; } 
@@ -726,7 +713,11 @@ sub rown {
        }
        $showf++;
     } $safeeval->reval($proc.'('.$n.')');
-    return $rowdata.'</tr>';
+    if ($ENV{'form.showall'} || ($dataflag)) {
+       return $rowdata.'</tr>';
+    } else {
+       return '';
+    }
 }
 
 # ------------------------------------------------------------- Print out sheet
@@ -769,10 +760,43 @@ sub outsheet {
     $tabledata.='</tr>';
     my $row;
     my $maxrow=&getmaxrow($safeeval);
-    $tabledata.=&rown($safeeval,'-');
+    $tabledata.=&rown($safeeval,'-').&rown($safeeval,0);
     $r->print($tabledata);
-    for ($row=0;$row<=$maxrow;$row++) {
-        $r->print(&rown($safeeval,$row));
+
+    my @sortby=();
+    my @sortidx=();
+    for ($row=1;$row<=$maxrow;$row++) {
+       $sortby[$row-1]=$safeeval->reval('$f{"A'.$row.'"}');
+       $sortidx[$row-1]=$row-1;
+    }
+    @sortidx=sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
+
+        my $what='Student';
+        if (&gettype($safeeval) eq 'assesscalc') {
+	    $what='Item';
+	} elsif (&gettype($safeeval) eq 'studentcalc') {
+            $what='Assessment';
+        }
+
+    my $n=0;
+    for ($row=0;$row<$maxrow;$row++) {
+     my $thisrow=&rown($safeeval,$sortidx[$row]+1);
+     if ($thisrow) {
+       if ($n/25==int($n/25)) {
+	$r->print("</table>\n<br>\n");
+        $r->rflush();
+        $r->print('<table border=2><tr><td>&nbsp;<td>'.$what.'</td>');
+        map {
+           $r->print('<td>'.$_.'</td>');
+        } ('A','B','C','D','E','F','G','H','I','J','K','L','M',
+           'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
+           'a','b','c','d','e','f','g','h','i','j','k','l','m',
+           'n','o','p','q','r','s','t','u','v','w','x','y','z');
+        $r->print('</tr>');
+       }
+       $n++;
+       $r->print($thisrow);
+      }
     }
     $r->print('</table>');
 }
@@ -1987,7 +2011,8 @@ ENDSCRIPT
 # ---------------------------------------------------------------- Course title
 
     $r->print('<h1>'.
-            $ENV{'course.'.$ENV{'request.course.id'}.'.description'}.'</h1>');
+            $ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
+             '</h1><h3>'.localtime().'</h3>');
 
 # ---------------------------------------------------- See if user can see this
 
@@ -2110,6 +2135,15 @@ ENDSCRIPT
 
    &tmpwrite($asheet);
 
+    if (&gettype($asheet) eq 'studentcalc') {
+	$r->print('<br>Show rows with empty A column: ');
+    } else {
+        $r->print('<br>Show empty rows: ');
+    } 
+    $r->print('<input type=checkbox name=showall onClick="submit()"');
+    if ($ENV{'form.showall'}) { $r->print(' checked'); }
+    $r->print('>');
+
 # ------------------------------------------------------------- Print out sheet
 
     &outsheet($r,$asheet);