Subject: [sup-devel] [PATCH] [issue44] cursor sticks to thread

From: Eric Sherman <[email-masked]>
Date: Tue, 12 Jan 2010 15:12:04 -0500

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 |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/lib/sup/modes/thread-index-mode.rb b/lib/sup/modes/thread-index-mode.rb
index a5bd344..9e70ec8 100644
--- a/lib/sup/modes/thread-index-mode.rb
+++ b/lib/sup/modes/thread-index-mode.rb
@@ -219,6 +219,10 @@ EOS
   end
 
   def update
+    ## remember the thread we are on and where the cursor is before we update
+    old_cursor_thread = cursor_thread
+    old_cursor_position = curpos
+
     @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
@@ -226,6 +230,11 @@ EOS
       @size_widget_width = @size_widgets.max_of { |w| w.display_length }
     end
 
+    ## if the thread moved on screen, move the cursor to its new position
+    new_cursor_position = @threads.index(old_cursor_thread)||0
+    (old_cursor_position..(new_cursor_position-1)).each { |x| cursor_down }
+    (new_cursor_position..(old_cursor_position-1)).each { |x| cursor_up }
+
     regen_text
   end
 
-- 
1.6.6

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