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import wx
import wx.grid
import string
class UpCaseCellEditor(wx.grid.PyGridCellEditor):
def __init__(self):
wx.grid.PyGridCellEditor.__init__(self)
def Create(self, parent, id, evtHandler):
"""
Called to create the control, which must derive from wx.Control.
*Must Override*
"""
self._tc = wx.TextCtrl(parent, id, "")
self._tc.SetInsertionPoint(0)
self.SetControl(self._tc)
if evtHandler:
self._tc.PushEventHandler(evtHandler)
self._tc.Bind(wx.EVT_CHAR, self.OnChar)
def SetSize(self, rect):
"""
Called to position/size the edit control within the cell rectangle.
If you don't fill the cell (the rect) then be sure to override
PaintBackground and do something meaningful there.
"""
self._tc.SetDimensions(rect.x, rect.y, rect.width+2, rect.height+2,
wx.SIZE_ALLOW_MINUS_ONE)
def BeginEdit(self, row, col, grid):
"""
Fetch the value from the table and prepare the edit control
to begin editing. Set the focus to the edit control.
*Must Override*
"""
self.startValue = grid.GetTable().GetValue(row, col)
self._tc.SetValue(self.startValue)
self._tc.SetInsertionPointEnd()
self._tc.SetFocus()
self._tc.SetSelection(0, self._tc.GetLastPosition())
def EndEdit(self, row, col, grid):
"""
Complete the editing of the current cell. Returns True if the value
has changed. If necessary, the control may be destroyed.
*Must Override*
"""
changed = False
val = self._tc.GetValue()
if val != self.startValue:
changed = True
grid.GetTable().SetValue(row, col, val) # update the table
self.startValue = ''
self._tc.SetValue('')
return changed
def Reset(self):
"""
Reset the value in the control back to its starting value.
*Must Override*
"""
self._tc.SetValue(self.startValue)
self._tc.SetInsertionPointEnd()
def Clone(self):
"""
Create a new object which is the copy of this one
*Must Override*
"""
return UpCaseCellEditor()
def StartingKey(self, evt):
"""
If the editor is enabled by pressing keys on the grid, this will be
called to let the editor do something about that first key if desired.
"""
self.OnChar(evt)
if evt.GetSkipped():
self._tc.EmulateKeyPress(evt)
def OnChar(self, evt):
key = evt.GetKeyCode()
if key > 255:
evt.Skip()
return
char = chr(key)
if char in string.letters:
char = char.upper()
self._tc.WriteText(char)
else:
evt.Skip()
class TestFrame(wx.Frame):
def __init__(self):
wx.Frame.__init__(self, None, title="Grid Editor",
size=(640,480))
grid = wx.grid.Grid(self)
grid.CreateGrid(50,50)
grid.SetDefaultEditor(UpCaseCellEditor())
app = wx.App()
frame = TestFrame()
frame.Show()
app.MainLoop()
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