[meld] Highlight currently focused change

[Kai Willadsen <kaiw src gnome org>]

commit bb198226199d322521e84c38473132efd746f505
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Fri Aug 6 09:06:33 2010 +1000

    Highlight currently focused change
    
    Now that we have keyboard actions on the currently selected commit, we
    also need to show which change Meld thinks the cursor is in. This patch
    indicates the current change by adding a highlight to the linkmap and
    textview fills.
    
    Note that ideally we shouldn't queue_draw everything when the focused
    chunk changes.

 meld/filediff.py |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/meld/filediff.py b/meld/filediff.py
index d609685..e657dd4 100644
--- a/meld/filediff.py
+++ b/meld/filediff.py
@@ -308,6 +308,8 @@ class FileDiff(melddoc.MeldDoc, gnomeglade.Component):
         self.actiongroup.get_action("PullLeft").set_sensitive(pull_left)
         self.actiongroup.get_action("PullRight").set_sensitive(pull_right)
         self.actiongroup.get_action("Delete").set_sensitive(delete)
+        # FIXME: don't queue_draw() on everything... just on what changed
+        self.queue_draw()
 
     def push_change(self, direction):
         src = self._get_focused_pane()
@@ -949,6 +951,10 @@ class FileDiff(melddoc.MeldDoc, gnomeglade.Component):
             if change[1] != change[2]:
                 context.set_source_rgb(*self.fill_colors[change[0]])
                 context.fill_preserve()
+                if self.linediffer.locate_chunk(pane, change[1])[0] == self.cursor.chunk:
+                    context.set_source_rgba(1.0, 1.0, 1.0, 0.5)
+                    context.fill_preserve()
+
             context.set_source_rgb(*self.line_colors[change[0]])
             context.stroke()
 
@@ -1324,6 +1330,10 @@ class FileDiff(melddoc.MeldDoc, gnomeglade.Component):
             context.set_source_rgb(*self.fill_colors[c[0]])
             context.fill_preserve()
 
+            if self.linediffer.locate_chunk(which, c[1])[0] == self.cursor.chunk:
+                context.set_source_rgba(1.0, 1.0, 1.0, 0.5)
+                context.fill_preserve()
+
             context.set_source_rgb(*self.line_colors[c[0]])
             context.stroke()