--- loncom/interface/lonquickgrades.pm	2011/03/12 02:58:44	1.75
+++ loncom/interface/lonquickgrades.pm	2011/03/26 16:09:33	1.80
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Quick Student Grades Display
 #
-# $Id: lonquickgrades.pm,v 1.75 2011/03/12 02:58:44 www Exp $
+# $Id: lonquickgrades.pm,v 1.80 2011/03/26 16:09:33 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -475,10 +475,12 @@ sub process_category_edits {
     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);
-# More changes here
+# Set values for category rules (before names may change)
+        %categories=&set_category_rules($cangrade,$id,%categories);
     }
 
 # Now deal with commands
@@ -495,6 +497,10 @@ sub process_category_edits {
         %categories=&add_category_content($1,$cangrade,$env{'form.addcont_'.$1.'_symb'},%categories);
     } elsif ($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'};
@@ -607,12 +613,23 @@ ENDMOVE
     }
     $r->print('</td>'); 
 # Calculation
-# FIXME: just placeholders
+    $r->print('<td><ul>');
+    foreach my $calcrule (split(/\,/,$categories{$id.'_calculations'})) {
+        $r->print('<li>');
+        my ($code,$value)=split(/\:/,$calcrule);
+        $r->print(&pretty_prt_rule($cangrade,$id,$code,$value));
+        if ($cangrade) {
+           $r->print(' <a href="javascript:storecmd(\'delrule_'.$id.'______'.$code.'\');">'.&mt('Delete').'</a>');
+        }
+        $r->print('</li>');
+    }
+    $r->print('</ul>');
     if ($cangrade) {
-       $r->print("<td>Calculation Edit</td>");
-    } else {
-       $r->print("<td>Calculation</td>");
+        $r->print('<br />'.&new_calc_rule_form($id));
     }
+    $r->print('</td>');
+
+
 # Total
     if ($cangrade) {
        $r->print('<td>'.
@@ -674,6 +691,89 @@ sub make_new_category {
     return %categories;
 }
 
+
+# === Calculation Rule Editing
+
+sub category_rule_codes {
+    return &Apache::lonlocal::texthash(
+                'droplow'  => 'Drop N lowest grade assignments',
+                'drophigh' => 'Drop N highest grade assignments',
+                '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
 #