wxPython控件学习之wx.grid.Grid (包括对GridCellEditor和GridCelRender的扩展，以支持更多的grid cell 样式, 以GridCellColorEditor为例)

 1 #-*-coding:utf-8
 2 
 3 #-------------------------------------------------------------------------------
 4 # Name:        模块1
 5 # Purpose:
 6 #
 7 # Author:      ankier
 8 #
 9 # Created:     14/10/2012
10 # Copyright:   (c) ankier 2012
11 # Licence:     <your licence>
12 #-------------------------------------------------------------------------------
13 
14 import wx, wx.grid as grd
15 
16 #定购的Grid cell ComboBox editor
17 class GridCellComboBoxEditor(grd.PyGridCellEditor):
18     def __init__(self, choices = []):
19         grd.PyGridCellEditor.__init__(self)
20         self.__Choices = choices
21     
22     def Create(self, parent, id, evtHandler):
23         """
24         Called to create the control, which must derive from wx.Control.
25         *Must Override*
26         """
27         self.__Parent = parent
28         self.__ComboBoxDialog = None
29         self.__ComboBoxButton = wx.ComboBox(parent, id, value = http://www.mamicode.com/"", choices =self.__Choices)
30         self.__ComboBoxButton.SetEditable(False)
31         self.SetControl(self.__ComboBoxButton)
32         #添加新的event handler， 防止 弹出窗口后， cell 自动editor
33         newEventHandler = wx._core.EvtHandler()
34         if evtHandler:
35             self.__ComboBoxButton.PushEventHandler(newEventHandler)
36         self.__ComboBoxButton.Bind(wx.EVT_COMBOBOX, self.OnClick)
37 
38 
39     def OnClick(self, event):
40         self.endValue = http://www.mamicode.com/self.__ComboBoxButton.GetStringSelection()
41         
42 
43     def SetSize(self, rect):
44         """
45         Called to position/size the edit control within the cell rectangle.
46         If you don‘t fill the cell (the rect) then be sure to override
47         PaintBackground and do something meaningful there.
48         """
49         self.__ComboBoxButton.SetDimensions(rect.x,rect.y,rect.width+2,rect.height+2,wx.SIZE_ALLOW_MINUS_ONE)
50 
51     def Clone(self):
52         """
53         Create a new object which is the copy of this one
54         *Must Override*
55         """
56         return GridCellComboBoxEditor()
57 
58     def BeginEdit(self, row, col, grid):
59         """
60         Fetch the value from the table and prepare the edit control
61         to begin editing. Set the focus to the edit control.
62         *Must Override*
63         """
64         self.startValue =http://www.mamicode.com/ grid.GetTable().GetValue(row, col)
65         self.endValue =http://www.mamicode.com/ self.startValue
66         self.__ComboBoxButton.SetStringSelection(self.startValue)
67 
68     def EndEdit(self, row, col, grid):
69         """
70         Complete the editing of the current cell. Returns True if the value
71         has changed. If necessary, the control may be destroyed.
72         *Must Override*
73         """
74         changed = False
75         if self.endValue != self.startValue:
76             changed = True
77             grid.GetTable().SetValue(row, col, self.endValue) # update the table
78             self.startValue = http://www.mamicode.com/‘‘
79         return changed
80 
81     
82 
83 #定购颜色cell colour column
84 class GridCellComboBoxRender(grd.GridCellStringRenderer):
85     def __init__(self):
86         grd.GridCellStringRenderer.__init__(self)


转自http://www.cnblogs.com/ankier/archive/2012/10/14/2723364.html