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#------------------------------------------------------------------------------
# Copyright (c) 2005, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in enthought/LICENSE.txt and may be redistributed only
# under the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
# Thanks for using Enthought open source!
#
# Author: Enthought, Inc.
# Description: <Enthought util package component>
#------------------------------------------------------------------------------
#-------------------------------------------------------------------------------
#
#-------------------------------------------------------------------------------
import types
from string import atof
import wx
from wx.grid import PyGridCellRenderer
#-------------------------------------------------------------------------------
class DefaultRenderer(PyGridCellRenderer):
""" This renderer provides the default representation of an
Enthought spreadsheet cell.
"""
selected_cells = wx.Brush(wx.Colour(255,255,200), wx.SOLID)
normal_cells = wx.Brush("white", wx.SOLID)
odd_cells = wx.Brush(wx.Colour(240,240,240), wx.SOLID)
error_cells = wx.Brush(wx.Colour(255,122,122), wx.SOLID)
warn_cells = wx.Brush(wx.Colour(255,242,0), wx.SOLID)
def __init__(self, color="black", font="ARIAL", fontsize=8):
PyGridCellRenderer.__init__(self)
self.color = color
self.foundary = font
self.fontsize = fontsize
self.font = wx.Font(fontsize, wx.DEFAULT, wx.NORMAL, wx.NORMAL,0, font)
def Clone(self):
return DefaultRenderer(self.color, self.foundary, self.fontsize)
def Draw(self, grid, attr, dc, rect, row, col, isSelected):
self.DrawBackground(grid, attr, dc, rect, row, col, isSelected);
self.DrawForeground(grid, attr, dc, rect, row, col, isSelected);
dc.DestroyClippingRegion()
return
def DrawBackground(self, grid, attr, dc, rect, row, col, isSelected):
""" Erases whatever is already in the cell by drawing over it.
"""
# 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)
# overwrite anything currently in the cell ...
dc.SetBackgroundMode(wx.SOLID)
dc.SetPen(wx.Pen(wx.WHITE, 1, wx.SOLID))
if isSelected:
dc.SetBrush(DefaultRenderer.selected_cells)
elif row%2:
dc.SetBrush(DefaultRenderer.normal_cells)
else:
dc.SetBrush(DefaultRenderer.odd_cells)
dc.DrawRectangle(rect.x, rect.y, rect.width, rect.height)
return
def DrawForeground(self, grid, attr, dc, rect, row, col, isSelected):
""" Draws the cell (text) on top of the existing background color.
"""
dc.SetBackgroundMode(wx.TRANSPARENT)
text = grid.model.GetValue(row, col)
dc.SetTextForeground(self.color)
dc.SetFont(self.font)
dc.DrawText(self.FormatText(text), rect.x+1, rect.y+1)
self.DrawEllipses(grid, attr, dc, rect, row, col, isSelected);
return
def FormatText(self, text):
""" Formats numbers to 3 decimal places.
"""
try:
text = '%0.3f' % atof(text)
except:
pass
return text
def DrawEllipses(self, grid, attr, dc, rect, row, col, isSelected):
""" Adds three dots "..." to indicate the cell is truncated.
"""
text = grid.model.GetValue(row, col)
if not isinstance(text, basestring):
msg = 'Problem appending "..." to cell: %d %d' % (row, col)
raise TypeError, msg
width, height = dc.GetTextExtent(text)
if width > rect.width-2:
width, height = dc.GetTextExtent("...")
x = rect.x+1 + rect.width-2 - width
dc.DrawRectangle(x, rect.y+1, width+1, height)
dc.DrawText("...", x, rect.y+1)
return
def GetBestSize88(self, grid, attr, dc, row, col):
""" This crashes the app - hmmmm. """
size = PyGridCellRenderer.GetBestSize(self, grid, attr, dc, row, col)
print '-----------------------------', size
return size
#-------------------------------------------------------------------------------
|
