example working with Tk

fariza · fariza · commit 3d1be3428fef · 2014-05-06T13:56:47.000-04:00
diff --git a/examples/user_interfaces/navigation.py b/examples/user_interfaces/navigation.py
@@ -1,33 +1,34 @@
 import matplotlib
-# matplotlib.use('GTK3Cairo')
-matplotlib.use('TkAGG')
+matplotlib.use('GTK3Cairo')
+# matplotlib.use('TkAGG')
 matplotlib.rcParams['toolbar'] = 'navigation'
 import matplotlib.pyplot as plt
 from matplotlib.backend_tools import ToolBase
 
 
-#Create a simple tool to list all the tools
+# Create a simple tool to list all the tools
 class ListTools(ToolBase):
-    #keyboard shortcut
+    # keyboard shortcut
     keymap = 'm'
-    #Name used as id, must be unique between tools of the same navigation
+    # Name used as id, must be unique between tools of the same navigation
     name = 'List'
     description = 'List Tools'
-    #Where to put it in the toolbar, -1 = at the end, None = Not in toolbar
+    # Where to put it in the toolbar, -1 = at the end, None = Not in toolbar
     position = -1
 
     def trigger(self, event):
-        #The most important attributes are navigation and figure
+        # The most important attributes are navigation and figure
         self.navigation.list_tools()
 
 
-#A simple example of copy canvas
-#ref: at https://github.com/matplotlib/matplotlib/issues/1987
-class CopyTool(ToolBase):
+# A simple example of copy canvas
+# ref: at https://github.com/matplotlib/matplotlib/issues/1987
+class CopyToolGTK3(ToolBase):
     keymap = 'ctrl+c'
     name = 'Copy'
     description = 'Copy canvas'
-    position = -1
+    # It is not added to the toolbar as a button
+    position = None
 
     def trigger(self, event):
         from gi.repository import Gtk, Gdk
@@ -41,13 +42,12 @@ def trigger(self, event):
 fig = plt.figure()
 plt.plot([1, 2, 3])
 
-#If we are in the old toolbar, don't try to modify it
-if matplotlib.rcParams['toolbar'] in ('navigation', 'None'):
-    ##Add the custom tools that we created
-    fig.canvas.manager.navigation.add_tool(ListTools)
-    fig.canvas.manager.navigation.add_tool(CopyTool)
+# Add the custom tools that we created
+fig.canvas.manager.navigation.add_tool(ListTools)
+if matplotlib.rcParams['backend'] == 'GTK3Cairo':
+    fig.canvas.manager.navigation.add_tool(CopyToolGTK3)
 
-    ##Just for fun, lets remove the back button
-    fig.canvas.manager.navigation.remove_tool('Back')
+# Just for fun, lets remove the back button
+fig.canvas.manager.navigation.remove_tool('Back')
 
 plt.show()
