# HG changeset patch
# User Jordi Gutiérrez Hermoso <jordigh@octave.org>
# Date 1570021893 14400
# Node ID d3ee52820f6ba3a033dc0bf5cab67c8e1c197735
# Parent  bfced396accaa84b13bd007d88b26a4211c7b430
Tile: don't update pixmap on tile change

That's too eager and incurs slowness if we change all the tile
palettes. Instead, just invalidate the current pixmap and let the lazy
methods recreate it.

diff --git a/nes.py b/nes.py
--- a/nes.py
+++ b/nes.py
@@ -122,7 +122,7 @@
 
     def set_palette(self, new_palette):
         self.palette = new_palette.copy()
-        self.update_pixmap()
+        self._pixmap = None
 
     def update_pixmap(self):
         img_data = bytes(sum(self.tile, []))