Hi Raffaello,
Thanks for the prompt answer.
I fixed the syntax error you mentioned, so - now you can see the real problem, namely, running the script and typing ‘www’ and in the top left cell, produces:
$ python ./DemoGridGeneric.py
row== 0 ;col== 0 ;old_val== Bob ;new_val== Bob ;new== WWW
But the grid still shows the original value ‘Bob’ on the screen.
The fixed program is below.
Bye,
Ron.
···
#!/usr/bin/env python
import wx
import wx.grid
import string
data = ((“Bob”, “Dernier”), (“Ryne”, “Sandberg”),
(“Gary”, “Matthews”), (“Leon”, “Durham”),
(“Keith”, “Moreland”), (“Ron”, “Cey”),
(“Jody”, “Davis”), (“Larry”, “Bowa”),
(“Rick”, “Sutcliffe”))
colLabels = (“Last”, “First”)
rowLabels = (“CF”, “2B”, “LF”, “1B”, “RF”, “3B”, “C”, “SS”, “P”)
class SimpleGrid(wx.grid.Grid):
def init(self, parent):
wx.grid.Grid.init(self, parent, -1)
tableBase = GenericTable(data, rowLabels, colLabels)
self.SetTable(tableBase)
class TestFrame(wx.Frame):
def init(self, parent):
wx.Frame.init(self, parent, -1, “ForceRefresh() working ?”,
size=(275, 275))
self.grid = SimpleGrid(self)
self.BindTableEvents()
self.grid.SetDefaultEditor(UpCaseCellEditor())
self.grid.AutoSize()
def OnGridCellChange(self, evt):
row,col = evt.GetRow(),evt.GetCol()
old_val = self.grid.GetTable().GetValue(row,col)
new = self.grid.__dict__["changed_val"]
self.grid.SetCellValue(row,col,new)
self.grid.ForceRefresh()
new_val = self.grid.GetTable().GetValue(row,col)
print "row==",row,";col==",col,";old_val==",old_val,";new_val==",new_val,";new==",new
def BindTableEvents(self):
self.Bind(event=wx.grid.EVT_GRID_CELL_CHANGE, handler=self.OnGridCellChange, source=None)
def SetDefaultCellEditor(self,grid):
self.editor = grid.SetDefaultEditor(grid_editor.UpCaseCellEditor())
class UpCaseCellEditor(wx.grid.PyGridCellEditor):
def init(self):
wx.grid.PyGridCellEditor.init(self)
def Create(self, parent, id, evtHandler):
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):
self._tc.SetDimensions(rect.x, rect.y, rect.width+2, rect.height+2,
wx.SIZE_ALLOW_MINUS_ONE)
def BeginEdit(self, row, col, grid):
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):
changed = False
val = self._tc.GetValue()
if val != self.startValue:
changed = True
grid.GetTable().SetValue(row, col, val)
"""
The contents of 'val', could be retrieved from outside
as: self.grid.__dict__["changed_val"]
"""
grid.changed_val = val
self.startValue = ''
self._tc.SetValue('')
return changed
def Reset(self):
self._tc.SetValue(self.startValue)
self._tc.SetInsertionPointEnd()
def Clone(self):
return UpCaseCellEditor()
def StartingKey(self, evt):
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 GenericTable(wx.grid.PyGridTableBase):
def __init__(self, data, rowLabels=None, colLabels=None):
wx.grid.PyGridTableBase.__init__(self)
self.data = data
self.rowLabels = rowLabels
self.colLabels = colLabels
def GetNumberRows(self):
try:
return len(self.data)
except (TypeError):
pass
def GetNumberCols(self):
try:
return len(self.data[0])
except:
pass
def GetColLabelValue(self, col):
if self.colLabels:
return self.colLabels[col]
def IsEmptyCell(self, row, col):
return False
def GetValue(self, row, col):
try:
return self.data[row][col]
except:
pass
def SetValue(self, row, col, value):
pass
if name == ‘main’:
app = wx.PySimpleApp()
frame = TestFrame(None)
frame.Show(True)
app.MainLoop()
Message: 1
Date: Wed, 20 Aug 2008 13:10:29 +0200
From: raffaello barbarossa.platz@gmail.com
Subject: Re: [wxpython-users] Re: I cannot make new values show in a
grid cell, even though ForceRefresh() is called.
To: wxpython-users@lists.wxwidgets.org
Message-ID:
5caf8fc00808200410u2e57552bke9f82b15fa04a8b1@mail.gmail.com
Content-Type: text/plain; charset=“iso-8859-1”
You just misplaced a line, the function should read
def OnGridCellChange(self, evt):
row,col =3D evt.GetRow(),evt.GetCol()
old_val =3D self.grid.GetTable().GetValue(row,col)
*new_val =3D self.grid.GetTable().GetValue(**row,col)*
new =3D self.grid.__dict__["changed_val"]
self.grid.SetCellValue(row,col,new_val)
self.grid.ForceRefresh()
print
“row=3D=3D”,row,“;col=3D=3D”,col,“;old_val=3D=3D”,old_val,“;new_val=3D=3D”,=
new_val,“;new=3D=3D”,new
I wonder why the stdout did not tell you that. I received at once the following error message:
C:/Python25/pythonw.exe -u “C:/Python_programs/Guests/GridNotWorking.py”
Traceback (most recent call last):
File “C:/Python_programs/Guests/GridNotWorking.py”, line 37, in OnGridCellChange
self.grid.SetCellValue(row,col,new_val)
UnboundLocalError: local variable ‘new_val’ referenced before assignment
So long
2008/8/20 Barak, Ron Ron.Barak@lsi.com
Hi Raffaello,
Sorry it took me awhile to create a demo of my post of 2008.08.17: “I
*
cannot* make new values show in a grid cell, even *
though* ForceRefresh() is called.” as requested.Below is the program, with the ‘offending’ function:
def OnGridCellChange(self, evt): row,col =3D evt.GetRow(),evt.GetCol() old_val =3D self.grid.GetTable().GetValue(row,col) new =3D self.grid.__dict__["changed_val"] self.grid.SetCellValue(row,col,new_val) self.grid.ForceRefresh() new_val =3D self.grid.GetTable().GetValue(row,col) print“row=3D=3D”,row,“;col=3D=3D”,col,“;old_val=3D=3D”,old_val,“;new_val=3D
=3D=
“,new_val,”;new=3D=3D”,new
Where the print line demonstrate that the value is changed, but the
grid itself is not updated on the screen (in spite of
self.grid.ForceRefresh()) .Any suggestions would be welcome.
Bye,
Ron.
#!/usr/bin/env python
import wx
import wx.grid
import stringdata =3D ((“Bob”, “Dernier”), (“Ryne”, “Sandberg”),
(“Gary”, “Matthews”), (“Leon”, “Durham”),
(“Keith”, “Moreland”), (“Ron”, “Cey”),
(“Jody”, “Davis”), (“Larry”, “Bowa”),
(“Rick”, “Sutcliffe”))colLabels =3D (“Last”, “First”)
rowLabels =3D (“CF”, “2B”, “LF”, “1B”, “RF”, “3B”, “C”, “SS”, “P”)class SimpleGrid(wx.grid.Grid):
def init(self, parent):
wx.grid.Grid.init(self, parent, -1)
tableBase =3D GenericTable(data, rowLabels, colLabels)
self.SetTable(tableBase)class TestFrame(wx.Frame):
def init(self, parent):
wx.Frame.init(self, parent, -1, “ForceRefresh() working ?”,
size=3D(275, 275))
self.grid =3D SimpleGrid(self)
self.BindTableEvents()
self.grid.SetDefaultEditor(UpCaseCellEditor())
self.grid.AutoSize()def OnGridCellChange(self, evt): row,col =3D evt.GetRow(),evt.GetCol() old_val =3D self.grid.GetTable().GetValue(row,col) new =3D self.grid.__dict__["changed_val"] self.grid.SetCellValue(row,col,new_val) self.grid.ForceRefresh() new_val =3D self.grid.GetTable().GetValue(row,col) print“row=3D=3D”,row,“;col=3D=3D”,col,“;old_val=3D=3D”,old_val,“;new_val=3D
=3D=
“,new_val,”;new=3D=3D”,newdef BindTableEvents(self): self.Bind(event=3Dwx.grid.EVT_GRID_CELL_CHANGE,handler=3Dself.OnGridCellChange, source=3DNone)
def SetDefaultCellEditor(self,grid): self.editor =3Dgrid.SetDefaultEditor(grid_editor.UpCaseCellEdito=
r())class UpCaseCellEditor(wx.grid.PyGridCellEditor):
def init(self):
wx.grid.PyGridCellEditor.init(self)def Create(self, parent, id, evtHandler): self._tc =3D 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): self._tc.SetDimensions(rect.x, rect.y, rect.width+2,rect.height+=
2,
wx.SIZE_ALLOW_MINUS_ONE)def BeginEdit(self, row, col, grid): self.startValue =3D 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): changed =3D False val =3D self._tc.GetValue() if val !=3D self.startValue: changed =3D True grid.GetTable().SetValue(row, col, val) """ The contents of 'val', could be retrieved from outside as: self.grid.__dict__["changed_val"] """ grid.changed_val =3D val self.startValue =3D '' self._tc.SetValue('') return changed def Reset(self): self._tc.SetValue(self.startValue) self._tc.SetInsertionPointEnd() def Clone(self): return UpCaseCellEditor() def StartingKey(self, evt): self.OnChar(evt) if evt.GetSkipped(): self._tc.EmulateKeyPress(evt) def OnChar(self, evt): key =3D evt.GetKeyCode() if key > 255: evt.Skip() return char =3D chr(key) if char in string.letters: char =3D char.upper() self._tc.WriteText(char) else: evt.Skip()class GenericTable(wx.grid.PyGridTableBase):
def __init__(self, data, rowLabels=3DNone, colLabels=3DNone): wx.grid.PyGridTableBase.__init__(self) self.data =3D data self.rowLabels =3D rowLabels self.colLabels =3D colLabels def GetNumberRows(self): try: return len(self.data) except (TypeError): pass def GetNumberCols(self): try: return len(self.data[0]) except: pass def GetColLabelValue(self, col): if self.colLabels: return self.colLabels[col] def IsEmptyCell(self, row, col): return False def GetValue(self, row, col): try: return self.data[row][col] except: pass def SetValue(self, row, col, value): passif name =3D=3D ‘main’:
app =3D wx.PySimpleApp()
frame =3D TestFrame(None)
frame.Show(True)
app.MainLoop()
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