当我尝试运行下面的代码时，我收到此错误：
Can't create window of class wxWindowNR (error 1406: cannot create a top-level child window.)
这是什么问题？
代码：
import os
import sys
import wx
from datetime import datetime, timedelta
szflags = wx.EXPAND | wx.ALL
min_height = 50
height_ratio = 4
pborder = 10
lborder = 5
class TangoArtProvider(wx.ArtProvider):
def __init__(self):
super(TangoArtProvider, self).__init__()
self.path = os.path.join(os.getcwd(), "icons")
self.bmps = [bmp.replace('.png', '')
for bmp in os.listdir(self.path)
if bmp.endswith('.png')]
print self.bmps
def CreateBitmap(self, id, client=wx.ART_OTHER, size=wx.DefaultSize):
if wx.Platform == '__WXGTK__':
return wx.NullBitmap
bmp = wx.NullBitmap
if id in self.bmps:
path = os.path.join(self.path, id+'.png')
bmp = wx.Bitmap(path)
else:
pass
return bmp
class ChartPanel(wx.Panel):
def __init__(self, *args, **kwargs):
wx.Panel.__init__(self, *args, **kwargs)
self.SetBackgroundColour('GREEN')
self.st = wx.StaticText(self, label='CHART PANEL')
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(self.st, 0 , szflags , lborder)
self.SetSizer(sizer)
class NotebookPage(wx.Panel):
def __init__(self, *args, **kwargs):
wx.Panel.__init__(self, *args, **kwargs)
self.chartPanel = ChartPanel(self, name='Notebook_Page_ChartPanel')
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(self.chartPanel, height_ratio, szflags, pborder)
self.SetSizer(sizer)
class Notebook(wx.Notebook):
def __init__(self, *args, **kwargs):
wx.Notebook.__init__(self, *args, **kwargs)
#self.SetBackgroundColour('PINK')
self.nbPages = {}
fleets = ["333"]
page_ix = 0
for fleet in fleets:
self.nbPages[fleets.index(fleet)] = NotebookPage(self, name='NotebookPage0')
for fleet in fleets:
self.AddPage(self.nbPages[fleets.index(fleet)], fleet, True)
class ChartPanel(wx.Panel):
def __init__(self, *args, **kwargs):
wx.Panel.__init__(self, *args, **kwargs)
#self.st = wx.StaticText(self, label='Chart Panel')
self.noteBook = Notebook(self, name='Notebook')
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(self.noteBook, 1, szflags)
self.SetSizer(sizer)
class SettingsPanel(wx.Panel):
def __init__(self, *args, **kwargs):
wx.Panel.__init__(self, *args, **kwargs)
self.st = wx.StaticText(self, label='Settings Panel')
self.sizer = wx.BoxSizer(wx.VERTICAL)
self.sizer.Add(self.st, 0, szflags)
self.SetSizer(self.sizer)
class OutputPanel(wx.Panel):
def __init__(self, *args, **kwargs):
wx.Panel.__init__(self, *args, **kwargs)
self.st = wx.StaticText(self, label='Output Panel')
self.sizer = wx.BoxSizer(wx.VERTICAL)
self.sizer.Add(self.st, 0, szflags)
self.SetSizer(self.sizer)
class ProportionalSplitter(wx.SplitterWindow):
def __init__(self,parent, id = -1, proportion=0.66, size = wx.DefaultSize, **kwargs):
wx.SplitterWindow.__init__(self,parent,id,wx.Point(0, 0),size, **kwargs)
self.SetMinimumPaneSize(50) #the minimum size of a pane.
self.proportion = proportion
if not 0 < self.proportion < 1:
raise ValueError, "proportion value for ProportionalSplitter must be between 0 and 1."
self.ResetSash()
self.Bind(wx.EVT_SIZE, self.OnReSize)
self.Bind(wx.EVT_SPLITTER_SASH_POS_CHANGED, self.OnSashChanged, id=id)
##hack to set sizes on first paint event
self.Bind(wx.EVT_PAINT, self.OnPaint)
self.firstpaint = True
def SplitHorizontally(self, win1, win2):
if self.GetParent() is None: return False
return wx.SplitterWindow.SplitHorizontally(self, win1, win2,
int(round(self.GetParent().GetSize().GetHeight() * self.proportion)))
def SplitVertically(self, win1, win2):
if self.GetParent() is None: return False
return wx.SplitterWindow.SplitVertically(self, win1, win2,
int(round(self.GetParent().GetSize().GetWidth() * self.proportion)))
def GetExpectedSashPosition(self):
if self.GetSplitMode() == wx.SPLIT_HORIZONTAL:
tot = max(self.GetMinimumPaneSize(),self.GetParent().GetClientSize().height)
else:
tot = max(self.GetMinimumPaneSize(),self.GetParent().GetClientSize().width)
return int(round(tot * self.proportion))
def ResetSash(self):
self.SetSashPosition(self.GetExpectedSashPosition())
def OnReSize(self, event):
"Window has been resized, so we need to adjust the sash based on self.proportion."
self.ResetSash()
event.Skip()
def OnSashChanged(self, event):
"We'll change self.proportion now based on where user dragged the sash."
pos = float(self.GetSashPosition())
if self.GetSplitMode() == wx.SPLIT_HORIZONTAL:
tot = max(self.GetMinimumPaneSize(),self.GetParent().GetClientSize().height)
else:
tot = max(self.GetMinimumPaneSize(),self.GetParent().GetClientSize().width)
self.proportion = pos / tot
event.Skip()
def OnPaint(self,event):
if self.firstpaint:
if self.GetSashPosition() != self.GetExpectedSashPosition():
self.ResetSash()
self.firstpaint = False
event.Skip()
class MainFrame(wx.Frame):
def __init__(self, *args, **kwargs):
wx.Frame.__init__(self, *args, **kwargs)
self.SetBackgroundColour('YELLOW')
self.CreateStatusBar(2)
self.SetStatusWidths([-2, -1])
#=======================================================================
# toolbar = self.CreateToolBar()
# toolbar.SetToolBitmapSize((20,20))
# icon_size = (32,32)
#
# wx.ArtProvider.PushProvider(TangoArtProvider())
#
# run = wx.ArtProvider.GetBitmap("forward", wx.ART_TOOLBAR, icon_size)
# settings = wx.ArtProvider.GetBitmap("tools", wx.ART_TOOLBAR, icon_size)
# quit = wx.ArtProvider.GetBitmap("quit", wx.ART_TOOLBAR, icon_size)
# toolbar.AddSimpleTool(1, run, "Run", "Run the report")
# toolbar.AddSimpleTool(2, settings, "Settings", "Change program settings")
# toolbar.AddSimpleTool(3, quit, "Quit", "Exit Program")
#
# toolbar.Realize()
#=======================================================================
self.split1 = ProportionalSplitter(self,-1, 0.66)
self.split2 = ProportionalSplitter(self.split1,-1, 0.50)
print "line 200"
self.rightpanel = ChartPanel(self.split1)
self.rightpanel.SetBackgroundColour('cyan')
print "line 203"
self.topleftpanel = SettingsPanel(self.split2)
self.topleftpanel.SetBackgroundColour('pink')
print "line 206"
self.bottomleftpanel = OutputPanel(self.split2)
self.bottomleftpanel.SetBackgroundColour('sky Blue')
## add your controls to the splitters:
self.split1.SplitVertically(self.split2, self.rightpanel)
self.split2.SplitHorizontally(self.topleftpanel, self.bottomleftpanel)
class App(wx.App):
def OnInit(self):
self.mainFrame = MainFrame(None,
size=(1000, 80*10),
title='Report', name='MainFrame')
wx.GetApp().SetTopWindow( self.mainFrame )
self.mainFrame.Show()
return True
def main(*args, **kwargs):
"""A nice place to process things before MainLoop"""
global app
import wx.lib.inspection
app = App()
#wx.lib.inspection.InspectionTool().Show()
app.MainLoop()
if __name__ == "__main__":
app = None
main()
答案 0 :(得分：1)
您的代码中存在无限循环：
ChartPanel - ＆gt;笔记本 - ＆gt; NotebookPage - ＆gt;的 ChartPanel