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[sup-devel] [PATCHv2] [issue44] cursor sticks to thread

This is much more concise version, using set_cursor_pos instead of 
cursor_up and cursor_down.

The cursor will track the thread it is on when that thread is moved up
or down on the screen as threads are added or removed from the view.
---
 lib/sup/modes/thread-index-mode.rb |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/lib/sup/modes/thread-index-mode.rb b/lib/sup/modes/thread-index-mode.rb
index a5bd344..40f622b 100644
--- a/lib/sup/modes/thread-index-mode.rb
+++ b/lib/sup/modes/thread-index-mode.rb
@@ -219,12 +219,14 @@ EOS
   end
 
   def update
+    old_cursor_thread = cursor_thread
     @mutex.synchronize do
       ## let's see you do THIS in python
       @threads = @ts.threads.select { |t| !@hidden_threads[t] }.sort_by { |t| [t.date, t.first.id] }.reverse
       @size_widgets = @threads.map { |t| size_widget_for_thread t }
       @size_widget_width = @size_widgets.max_of { |w| w.display_length }
     end
+    set_cursor_pos @threads.index(old_cursor_thread)||curpos
 
     regen_text
   end
-- 
1.6.6
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