Index: openacs-4/contrib/packages/project-manager/www/task-revisions.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/contrib/packages/project-manager/www/Attic/task-revisions.tcl,v
diff -u -r1.1 -r1.2
--- openacs-4/contrib/packages/project-manager/www/task-revisions.tcl	30 Apr 2004 21:32:33 -0000	1.1
+++ openacs-4/contrib/packages/project-manager/www/task-revisions.tcl	3 Jun 2004 21:32:13 -0000	1.2
@@ -21,7 +21,7 @@
 }
 
 
-set task_term       [parameter::get -parameter "TaskName" -default "Task"]
+set task_term       [parameter::get -parameter "TaskName" -default "Task Revisions"]
 
 set title "$task_term Changes"
 
@@ -64,34 +64,49 @@
             label "Deadline"
         }
     } \
-    -orderby {
-        revision_id {orderby revision_id}
-        percent_complete {orderby percent_complete}
-        end_date {orderby end_date}
-        default_value revision_id,desc
-    } \
-    -orderby_name orderby_revisions \
     -sub_class {
         narrow
-    } \
-    -filters {
-        task_revision_id {}
-        orderby_dependency {}
-        orderby_dependency2 {}
-    } \
-    -html {
-        width 100%
-    }
+    } 
 
+set descriptions [list]
 
-db_multirow -extend { item_url description_rich } revisions task_revisions_query {
+db_multirow -extend { item_url description_rich old_revision_id } revisions task_revisions_query {
 } {
     set item_url [export_vars -base "task-one" -override {{task_revision_id $revision_id}} -exclude {revision_id} { revision_id task_id}]
 
     set richtext_list [list $description $mime_type]
 
     set description_rich [template::util::richtext::get_property html_value $richtext_list]
 
+    set descriptions_length [llength $descriptions]
+
+    # if there isn't any previous items, then we don't have to do a
+    # word diff. All the content is new.
+    if {$descriptions_length < 1} {
+        set description_rich $description_rich
+        lappend descriptions "$description_rich"
+
+    } else {
+
+        set old_description [lindex $descriptions [expr [llength $descriptions] - 1]]
+        set old_description [ad_html_to_text $old_description]
+        lappend descriptions "$description_rich"
+
+        set description_rich [pm::util::word_diff \
+                                  -split_by " " \
+                                  -old "$old_description" \
+                                  -start_old "<strike><font color=\"blue\">" \
+                                  -end_old "</font></strike>" \
+                                  -start_new "<font color=\"green\">" \
+                                  -end_new "</font>" \
+                                  -new "[ad_html_to_text $description_rich]" \
+                                  -filter_proc ""]
+
+        # set description_rich [ad_html_to_text $description_rich]
+        set description_rich [ad_text_to_html -no_quote -includes_html -- $description_rich]
+
+    }
+
 }