default to draw_idle in draw_if_interactive if it is supported

svn path=/trunk/matplotlib/; revision=6696

Author: jdh2358

lib/matplotlib/backends/backend_gtk.py

@@ -60,7 +60,7 @@ def draw_if_interactive():
     if matplotlib.is_interactive():
         figManager =  Gcf.get_active()
         if figManager is not None:
-            figManager.canvas.draw()
+            figManager.canvas.draw_idle()
 
 
 def show(mainloop=True):

lib/matplotlib/backends/backend_tkagg.py

@@ -389,7 +389,7 @@ def destroy(*args):
             # anim.py requires this
             if sys.platform=='win32' : self.window.update()
         else:
-            self.canvas.draw()
+            self.canvas.draw_idle()
         self._shown = True
 
 

lib/matplotlib/backends/backend_wx.py

@@ -1306,7 +1306,7 @@ def draw_if_interactive():
 
         figManager = Gcf.get_active()
         if figManager is not None:
-            figManager.canvas.draw()
+            figManager.canvas.draw_idle()
 
 def show():
     """