backend_qt4: make button mapping definition use Qt's constants

hmeine · hmeine · commit 518b9a9ddd79 · 2012-05-23T18:13:44.000+02:00
diff --git a/lib/matplotlib/backends/backend_qt4.py b/lib/matplotlib/backends/backend_qt4.py
@@ -122,8 +122,13 @@ class FigureCanvasQT( QtGui.QWidget, FigureCanvasBase ):
                 QtCore.Qt.Key_Alt : 'alt',
                 QtCore.Qt.Key_Return : 'enter'
                }
-    # left 1, middle 2, right 3
-    buttond = {1:1, 2:3, 4:2}
+    # map Qt button codes to MouseEvent's ones:
+    buttond = {QtCore.Qt.LeftButton  : 1,
+               QtCore.Qt.MidButton   : 2,
+               QtCore.Qt.RightButton : 3,
+               # QtCore.Qt.XButton1 : None,
+               # QtCore.Qt.XButton2 : None,
+               }
     def __init__( self, figure ):
         if DEBUG: print 'FigureCanvasQt: ', figure
         _create_qApp()
