draw markers to backend

svn path=/trunk/matplotlib/; revision=939

Author: jdh2358

TODO

@@ -684,4 +684,6 @@ square).  All displayed area is white.
 
 -- DONE pyparsing a performance bottleneck for log ticks
 
--- draw point and draw pixel currently broken for new style markers
+-- DONE draw point and draw pixel currently broken for new style markers
+
+-- alpha channel in colormaps

lib/matplotlib/lines.py

@@ -548,12 +548,36 @@ def _draw_dotted(self, renderer, gc, xt, yt):
 
 
     def _draw_point(self, renderer, gc, xt, yt):
-        for (x,y) in zip(xt, yt):
-            renderer.draw_arc(gc, None, x, y, 1, 1, 0.0, 360.0)
+        if self._newstyle:
+            rgbFace = self._get_rgb_face()
+            CLOSE = self._get_close(rgbFace)
+            path = (
+                (MOVETO, -0.5, -0.5),
+                (LINETO, -0.5, 0.5),
+                (LINETO, 0.5, 0.5),
+                (LINETO, 0.5, -0.5),
+                CLOSE
+                )
+            renderer.draw_markers(gc, path, xt, yt, self._transform)
+        else:
+            for (x,y) in zip(xt, yt):
+                renderer.draw_arc(gc, None, x, y, 1, 1, 0.0, 360.0)
 
     def _draw_pixel(self, renderer, gc, xt, yt):
-        for (x,y) in zip(xt, yt):
-            renderer.draw_point(gc, x, y)
+        if self._newstyle:
+            rgbFace = self._get_rgb_face()            
+            CLOSE = self._get_close(rgbFace)
+            path = (
+                (MOVETO, -0.5, -0.5),
+                (LINETO, -0.5, 0.5),
+                (LINETO, 0.5, 0.5),
+                (LINETO, 0.5, -0.5),
+                CLOSE
+                )
+            renderer.draw_markers(gc, path, xt, yt, self._transform)
+        else:
+            for (x,y) in zip(xt, yt):
+                renderer.draw_point(gc, x, y)
 
 
     def _draw_circle(self, renderer, gc, xt, yt):