When I edit GridHugeTable.py (from demos 4.0.1) to be patched like this:
class HugeTable(gridlib.GridTableBase):
def __init__(self, log):
gridlib.GridTableBase.__init__(self)
self.log = log
self.odd=gridlib.GridCellAttr()
self.odd.SetBackgroundColour("sky blue")
self.even=gridlib.GridCellAttr()
self.even.SetBackgroundColour("sea green")
+ self.filters = gridlib.GridCellAttr()
+ self.filters.SetBackgroundColour("sea green")
+ self.filter_editor = gridlib.GridCellChoiceEditor(['FILTER data', 'WHERE=', 'CONTAINS', '???'], True)
+ self.filters.SetEditor(self.filter_editor)
def GetAttr(self, row, col, kind):
- attr = [self.even, self.odd][row % 2]
+ if row == 0 :
+ attr = self.filters
+ else:
+ attr = [self.even, self.odd][row % 2]
attr.IncRef()
return attr
def GetValue(self, row, col):
+ if row==0:
+ return self.filter_editor.GetValue() if self.filter_editor.IsCreated() else 'FILTER data'
return str( (row, col) )
and run (with wxPython 4.0.1) and click the first row’s drop-down, then close the Frame… I get this weird error:
Traceback (most recent call last):
File "Downloads\wxPython-demo-4.0.1\demo\GridHugeTable_Error.py", line 87, in <module>
app.MainLoop()
File "C:\Python36\lib\site-packages\wx\core.py", line 2096, in MainLoop
rv = wx.PyApp.MainLoop(self)
wx._core.wxAssertionError: C++ assertion "GetEventHandler() == this" failed at ..\..\src\common\wincmn.cpp(478) in wxWindowBase::~wxWindowBase(): any pushed event handlers must have been removed
whole source code:
import wx
import wx.grid as gridlib
class HugeTable(gridlib.GridTableBase):
def __init__(self, log):
gridlib.GridTableBase.__init__(self)
self.log = log
self.odd=gridlib.GridCellAttr()
self.odd.SetBackgroundColour("sky blue")
self.even=gridlib.GridCellAttr()
self.even.SetBackgroundColour("sea green")
self.filters = gridlib.GridCellAttr()
self.filters.SetBackgroundColour("sea green")
self.filter_editor = gridlib.GridCellChoiceEditor(['FILTER data', 'WHERE=', 'CONTAINS', '???'], True)
self.filters.SetEditor(self.filter_editor)
def GetAttr(self, row, col, kind):
if row == 0 :
attr = self.filters
else:
attr = [self.even, self.odd][row % 2]
attr.IncRef()
return attr
# This is all it takes to make a custom data table to plug into a
# wxGrid. There are many more methods that can be overridden, but
# the ones shown below are the required ones. This table simply
# provides strings containing the row and column values.
def GetNumberRows(self):
return 10000
def GetNumberCols(self):
return 10000
def IsEmptyCell(self, row, col):
return False
def GetValue(self, row, col):
if row==0:
return self.filter_editor.GetValue() if self.filter_editor.IsCreated() else 'FILTER data'
return str( (row, col) )
def SetValue(self, row, col, value):
self.log.write('SetValue(%d, %d, "%s") ignored.\n' % (row, col, value))
#---------------------------------------------------------------------------
class HugeTableGrid(gridlib.Grid):
def __init__(self, parent, log):
gridlib.Grid.__init__(self, parent, -1)
table = HugeTable(log)
# The second parameter means that the grid is to take
# ownership of the table and will destroy it when done.
# Otherwise you would need to keep a reference to it, but that
# would allow other grids to use the same table.
self.SetTable(table, True)
self.Bind(gridlib.EVT_GRID_CELL_RIGHT_CLICK, self.OnRightDown)
def OnRightDown(self, event):
print("hello")
print(self.GetSelectedRows())
#---------------------------------------------------------------------------
class TestFrame(wx.Frame):
def __init__(self, parent, log):
wx.Frame.__init__(self, parent, -1, "Huge (virtual) Table Demo", size=(640,480))
grid = HugeTableGrid(self, log)
grid.SetReadOnly(5,5, True)
#---------------------------------------------------------------------------
if __name__ == '__main__':
import sys
app = wx.App()
frame = TestFrame(None, sys.stdout)
frame.Show(True)
app.MainLoop()
