[meld: 147/180] sourceview: Support draw_layer

[Kai Willadsen <kaiw src gnome org>]

commit f66586343dc22630d3b959bc08de51c91e115085
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Fri Oct 10 07:31:04 2014 +1000

    sourceview: Support draw_layer

 meld/sourceview.py |   16 ++++------------
 1 files changed, 4 insertions(+), 12 deletions(-)
---
diff --git a/meld/sourceview.py b/meld/sourceview.py
index 329cef6..cb3f83b 100644
--- a/meld/sourceview.py
+++ b/meld/sourceview.py
@@ -157,17 +157,9 @@ class MeldSourceView(GtkSource.View):
         tag.props.background_rgba = colour_lookup_with_fallback(
             style, "inline-bg", "LightSteelBlue2")
 
-    def do_draw(self, context):
-
-        windows = [
-            self.get_window(window_type) for window_type in
-            (Gtk.TextWindowType.TEXT, Gtk.TextWindowType.WIDGET)
-            if self.get_window(window_type)]
-
-        should_draw = [Gtk.cairo_should_draw_window(context, w) for w in windows]
-
-        if not any(should_draw):
-            return GtkSource.View.do_draw(self, context)
+    def do_draw_layer(self, layer, context):
+        if layer != Gtk.TextViewLayer.BELOW:
+            return GtkSource.View.do_draw_layer(self, layer, context)
 
         context.save()
 
@@ -260,7 +252,7 @@ class MeldSourceView(GtkSource.View):
 
         context.restore()
 
-        return GtkSource.View.do_draw(self, context)
+        return GtkSource.View.do_draw_layer(self, layer, context)
 
 
 class CommitMessageSourceView(GtkSource.View):