[meld] linkmap: Slightly improve some variable locality

[Kai Willadsen <kaiw src gnome org>]

commit 6751e06bb0635b095b7181caa771e3f7f476b6f5
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sat Oct 1 09:32:42 2016 +1000

    linkmap: Slightly improve some variable locality

 meld/linkmap.py |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/meld/linkmap.py b/meld/linkmap.py
index c50b50a..c86d7da 100644
--- a/meld/linkmap.py
+++ b/meld/linkmap.py
@@ -52,17 +52,16 @@ class LinkMap(Gtk.DrawingArea):
         if not self.filediff:
             return
 
-        context.set_line_width(1.0)
-        allocation = self.get_allocation()
-
         pix_start = [t.get_visible_rect().y for t in self.views]
         y_offset = [
             t.translate_coordinates(self, 0, 0)[1] + 1 for t in self.views]
 
         clip_y = min(y_offset) - 1
         clip_height = max(t.get_visible_rect().height for t in self.views) + 2
+        allocation = self.get_allocation()
         context.rectangle(0, clip_y, allocation.width, clip_height)
         context.clip()
+        context.set_line_width(1.0)
 
         stylecontext = self.get_style_context()
         Gtk.render_background(