some fixes and a new mixin class added to the library

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10663 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/wxPython/lib/mixins/grid.py

@@ -0,0 +1,43 @@
+#----------------------------------------------------------------------------
+# Name:        wxPython.lib.mixins.grid
+# Purpose:     Helpful mix-in classes for wxGrid
+#
+# Author:      Robin Dunn
+#
+# Created:     5-June-2001
+# RCS-ID:      $Id$
+# Copyright:   (c) 2001 by Total Control Software
+# Licence:     wxWindows license
+#----------------------------------------------------------------------------
+
+from wxPython import wx, grid
+
+#----------------------------------------------------------------------------
+
+
+class wxGridAutoEditMixin:
+    """A mix-in class that automatically enables the grid edit control when
+    a cell is selected.
+
+    If your class hooks EVT_GRID_SELECT_CELL be sure to call event.Skip so
+    this handler will be called too.
+    """
+
+    def __init__(self):
+        self.__enableEdit = 0
+        wx.EVT_IDLE(self, self.__OnIdle)
+        grid.EVT_GRID_SELECT_CELL(self, self.__OnSelectCell)
+
+
+    def __OnIdle(self, evt):
+        if self.__enableEdit:
+            if self.CanEnableCellControl():
+                self.EnableCellEditControl()
+            self.__enableEdit = 0
+        evt.Skip()
+
+
+    def __OnSelectCell(self, evt):
+        self.__enableEdit = 1
+        evt.Skip()
+