由于某种原因,我的sizer.Clear()
似乎无法正常工作。
据我所知,从文档中可以看出它应该有用。
我做错了会导致这种行为吗?
import wx
import os
import sys
import time
import string
import urllib2
class MainWindow(wx.Frame):
def __init__(self, parent, id=wx.ID_ANY, title="", pos=wx.DefaultPosition,
size=wx.DefaultSize, style=wx.MINIMIZE_BOX | wx.CLOSE_BOX | wx.RESIZE_BORDER | wx.SYSTEM_MENU | wx.CAPTION):
wx.Frame.__init__(self, parent, id, title, pos, size, style)
panel = wx.Panel(self)
sizer = wx.BoxSizer(wx.VERTICAL)
panel.SetSizer(sizer)
self.sizer = sizer
self.panel = panel
self.ShowLoginBox()
def ShowLoginBox(self):
sizer = wx.FlexGridSizer(rows=4, cols=2, hgap=15, vgap=10)
sizer.AddGrowableCol(1, 1)
login_url = wx.TextCtrl(self.panel, 1, size=(150, -1))
label_url = wx.StaticText(self.panel, -1, "URL:")
sizer.Add(label_url, 0, wx.LEFT | wx.TOP| wx.RIGHT, 30)
sizer.Add(login_url, 1, wx.EXPAND | wx.TOP | wx.RIGHT, 30)
login_username = wx.TextCtrl(self.panel, 1, size=(150, -1))
label_username = wx.StaticText(self.panel, -1, "Username:")
sizer.Add(label_username, 0, wx.LEFT | wx.RIGHT, 30)
sizer.Add(login_username, 1, wx.EXPAND | wx.RIGHT, 30)
login_password = wx.TextCtrl(self.panel, 1, size=(150, -1), style=wx.TE_PASSWORD)
label_password = wx.StaticText(self.panel, -1, "Password:")
sizer.Add(label_password, 0, wx.LEFT | wx.RIGHT, 30)
sizer.Add(login_password, 1, wx.EXPAND | wx.RIGHT, 30)
btn_process = wx.Button(self.panel, -1, "&Login")
self.panel.Bind(wx.EVT_BUTTON, self.OnSubmit, btn_process)
sizer.Add(btn_process, 0, wx.LEFT, 30)
login_url.SetValue("http://example.com")
login_username.SetValue("admin")
login_password.SetValue("pass")
self.login_url = login_url
self.login_username = login_username
self.login_password = login_password
self.sizer.Clear()
self.sizer.Add(sizer, 1, wx.EXPAND)
self.SetSizeWH(330, 250)
self.Center()
def OnSubmit(self, event):
user_url = self.login_url.GetValue()
user_name = self.login_username.GetValue()
user_pass = self.login_password.GetValue()
# login info is used to get a URL
print user_url, user_name, user_pass
# if 200 OK
self.ShowNew()
def ShowNew(self):
sizer = wx.BoxSizer(wx.HORIZONTAL)
content = wx.ListCtrl(self.panel, -1, size=(780, 400), style=wx.LC_REPORT | wx.LC_SINGLE_SEL | wx.LC_HRULES | wx.LC_VRULES)
content.InsertColumn(0, 'URL', width=745)
sizer.Add(content, 1, wx.EXPAND)
# populate with data from URL
self.SetSizeWH(800, 520)
self.Center()
self.sizer.Clear()
self.sizer.Add(sizer)
if __name__ == '__main__':
home_path = os.path.dirname(os.path.realpath(__file__))
app = wx.PySimpleApp()
frame = MainWindow(None, title="Test", size=(800, 520))
frame.SetBackgroundColour("#ffffff")
frame.Show()
app.MainLoop()
答案 0 :(得分:4)
使用 sizer.Clear(True)代替 sizer.Clear(),它应该有效。
解释
如果发送到Clear()方法的参数为True,则“子窗口也将被删除”(http://docs.wxwidgets.org/2.8/wx_wxsizer.html#wxsizerclear)。
你想要清除wxSizer的子代: wxStaticText,wxTextCtrl,wxButton ,它们都是从 wxControl 和 wxWindow 派生的。这就是为什么sizer必须知道你想要删除子窗口。
另请参阅:http://docs.wxwidgets.org/2.8/wx_wxstatictext.html,http://docs.wxwidgets.org/2.8/wx_wxtextctrl.html和http://docs.wxwidgets.org/2.8/wx_wxbutton.html。
干杯!