How is it possible to render text in a wx.Grid’s cell in a true multiline looking?
While text containing escape sequences (\n and \r) is correctly reproduced in a wx.TextCtrl, the same sequences are ignored in the grid. Also wx.grid.GridCellAutoWrapStringRenderer feeds a new line only if the text extent is larger than the column width.
Hi Raffaello,
How is it possible to render text in a wx.Grid's cell in a true multiline
looking?
While text containing escape sequences (\n and \r) is correctly reproduced
in a wx.TextCtrl, the same sequences are ignored in the grid. Also
wx.grid.GridCellAutoWrapStringRenderer feeds a new line only if the text
extent is larger than the column width.
I would go with custom grid renderers, for which the wxPython demo
Grid_MegaExample is a good starting point. Basically you just need to
do something like this (untested):
class MegaTextRenderer(Grid.PyGridCellRenderer):
def __init__(self, table):
"""Render data."""
Grid.PyGridCellRenderer.__init__(self)
self.table = table
def Draw(self, grid, attr, dc, rect, row, col, isSelected):
# Here we draw text in a grid cell.
# We have to set the clipping region on
# the grid's DC, otherwise the text will spill over
# to the next cell
dc.SetClippingRect(rect)
# clear the background
dc.SetBackgroundMode(wx.SOLID)
if isSelected:
dc.SetBrush(wx.Brush(wx.BLUE, wx.SOLID))
dc.SetPen(wx.Pen(wx.BLUE, 1, wx.SOLID))
else:
dc.SetBrush(wx.Brush(wx.WHITE, wx.SOLID))
dc.SetPen(wx.Pen(wx.WHITE, 1, wx.SOLID))
dc.DrawRectangleRect(rect)
text = self.table.GetValue(row, col)
dc.SetBackgroundMode(wx.SOLID)
# change the text background based on whether the grid is selected
# or not
if isSelected:
dc.SetBrush(self.selectedBrush)
dc.SetTextBackground("blue")
else:
dc.SetBrush(self.normalBrush)
dc.SetTextBackground("white")
dc.SetTextForeground(wx.BLACK)
dc.SetFont(wx.SystemSettings.GetFont(wx.SYS_DEFAULT_GUI_FONT))
dc.DrawLabel(text, rect)
dc.DestroyClippingRegion()
Or something along these lines.
Andrea.
"Imagination Is The Only Weapon In The War Against Reality."
http://xoomer.alice.it/infinity77/
···
On Wed, Mar 11, 2009 at 7:17 AM, raffaello wrote:
Sorry, Andrea, it clips the text but doesn’t feed lines. Thanks all the same.
···
2009/3/11 Andrea Gavana andrea.gavana@gmail.com
Hi Raffaello,
On Wed, Mar 11, 2009 at 7:17 AM, raffaello wrote:
How is it possible to render text in a wx.Grid’s cell in a true multiline
looking?
While text containing escape sequences (\n and \r) is correctly reproduced
in a wx.TextCtrl, the same sequences are ignored in the grid. Also
wx.grid.GridCellAutoWrapStringRenderer feeds a new line only if the text
extent is larger than the column width.
I would go with custom grid renderers, for which the wxPython demo
Grid_MegaExample is a good starting point. Basically you just need to
do something like this (untested):
class MegaTextRenderer(Grid.PyGridCellRenderer):
def __init__(self, table): """Render data.""" Grid.PyGridCellRenderer.__init__(self) self.table = table def Draw(self, grid, attr, dc, rect, row, col, isSelected): # Here we draw text in a grid cell. # We have to set the clipping region on # the grid's DC, otherwise the text will spill over # to the next cell dc.SetClippingRect(rect) # clear the background dc.SetBackgroundMode(wx.SOLID) if isSelected: dc.SetBrush(wx.Brush(wx.BLUE, wx.SOLID)) dc.SetPen(wx.Pen(wx.BLUE, 1, wx.SOLID)) else: dc.SetBrush(wx.Brush(wx.WHITE, wx.SOLID)) dc.SetPen(wx.Pen(wx.WHITE, 1, wx.SOLID)) dc.DrawRectangleRect(rect) text = self.table.GetValue(row, col) dc.SetBackgroundMode(wx.SOLID) # change the text background based on whether the grid is selected # or not if isSelected: dc.SetBrush(self.selectedBrush) dc.SetTextBackground("blue") else: dc.SetBrush(self.normalBrush) dc.SetTextBackground("white") dc.SetTextForeground(wx.BLACK) dc.SetFont(wx.SystemSettings.GetFont(wx.SYS_DEFAULT_GUI_FONT)) dc.DrawLabel(text, rect) dc.DestroyClippingRegion()Or something along these lines.
Andrea.
“Imagination Is The Only Weapon In The War Against Reality.”
http://xoomer.alice.it/infinity77/
wxpython-users mailing list