wxPython动态添加页面到向导
问题描述:
我一直在开发一个基于wxPython的向导,我希望能够根据向导本身提供的输入动态增加大小。该向导通过一系列页面前进,然后提示用户输入一个数字。目标是通过txtCtrl框中的数字输入获取向导。我无法访问负责管理向导*方面的向导类中的pageList列表。用下面的代码:wxPython动态添加页面到向导
import wx
import wx.wizard as wiz
########################################################################
#----------------------------------------------------------------------
# Wizard Object which contains the list of wizard pages.
class DynaWiz(object):
def __init__(self):
wizard = wx.wizard.Wizard(None, -1, "Simple Wizard")
self.pageList = [TitledPage(wizard, "Page 1"),
TitledPage(wizard, "Page 2"),
TitledPage(wizard, "Page 3"),
TitledPage(wizard, "Page 4"),
AddPage(wizard)]
for i in range(len(self.pageList)-1):
wx.wizard.WizardPageSimple.Chain(self.pageList[i],self.pageList[i+1])
wizard.FitToPage(self.pageList[0])
wizard.RunWizard(self.pageList[0])
wizard.Destroy()
#----------------------------------------------------------------------
#generic wizard pages
class TitledPage(wiz.WizardPageSimple):
def __init__(self, parent, title):
"""Constructor"""
wiz.WizardPageSimple.__init__(self, parent)
sizer = wx.BoxSizer(wx.VERTICAL)
self.SetSizer(sizer)
title = wx.StaticText(self, -1, title)
title.SetFont(wx.Font(18, wx.SWISS, wx.NORMAL, wx.BOLD))
sizer.Add(title, 0, wx.ALIGN_CENTRE|wx.ALL, 5)
sizer.Add(wx.StaticLine(self, -1), 0, wx.EXPAND|wx.ALL, 5)
#----------------------------------------------------------------------
# page used to identify number of pages to add
class AddPage(wiz.WizardPageSimple):
def __init__(self,parent):
self.parent = parent
"""Constructor"""
wiz.WizardPageSimple.__init__(self, parent)
sizer = wx.BoxSizer(wx.VERTICAL)
self.SetSizer(sizer)
self.numPageAdd = wx.TextCtrl(self, -1, "")
self.verifyButton = wx.Button(self, id=wx.ID_ANY, label = "Confirm",name = "confirm")
self.verifyButton.Bind(wx.EVT_BUTTON, self.append_pages)
sizer.Add(self.numPageAdd, 0, wx.ALIGN_CENTRE|wx.ALL, 5)
sizer.Add(self.verifyButton,0,wx.ALIGN_CENTER|wx.ALL, 5)
sizer.Add(wx.StaticLine(self, -1), 0, wx.EXPAND|wx.ALL, 5)
#function used to add pages to pageList inside of Wizard Object containing
# this page
def append_pages(self,event):
n = int(self.numPageAdd.GetValue())
for i in range(n):
#Add n number of pages to wizard list "pageList" here....
self.parent.pageList.append(TitledPage(wizard, "Added Page"))
#----------------------------------------------------------------------
if __name__ == "__main__":
app = wx.App(False)
dWiz = DynaWiz()
app.MainLoop()
使用此代码生成以下错误消息:
AttributeError: 'Wizard' object has no attribute 'pageList'
而且我明白这是为什么,因为最终页面的父母是向导对象,而不是DynaWiz目的。这就是说,有没有办法访问DynaWiz obect中的pageList列表,并确保当前向导从AddPage类中的事件中重新加载?
答
您可以将Dynawiz实例传递给AddPage的构造函数。然后AddPage可以修改pageList。请看下图:
import wx
import wx.wizard as wiz
########################################################################
#----------------------------------------------------------------------
# Wizard Object which contains the list of wizard pages.
class DynaWiz(object):
def __init__(self):
wizard = wx.wizard.Wizard(None, -1, "Simple Wizard")
self.pageList = [TitledPage(wizard, "Page 1"),
TitledPage(wizard, "Page 2"),
TitledPage(wizard, "Page 3"),
TitledPage(wizard, "Page 4"),
AddPage(wizard, self)]
for i in range(len(self.pageList)-1):
wx.wizard.WizardPageSimple.Chain(self.pageList[i],self.pageList[i+1])
wizard.FitToPage(self.pageList[0])
wizard.RunWizard(self.pageList[0])
wizard.Destroy()
#----------------------------------------------------------------------
#generic wizard pages
class TitledPage(wiz.WizardPageSimple):
def __init__(self, parent, title):
"""Constructor"""
wiz.WizardPageSimple.__init__(self, parent)
sizer = wx.BoxSizer(wx.VERTICAL)
self.SetSizer(sizer)
title = wx.StaticText(self, -1, title)
title.SetFont(wx.Font(18, wx.SWISS, wx.NORMAL, wx.BOLD))
sizer.Add(title, 0, wx.ALIGN_CENTRE|wx.ALL, 5)
sizer.Add(wx.StaticLine(self, -1), 0, wx.EXPAND|wx.ALL, 5)
#----------------------------------------------------------------------
# page used to identify number of pages to add
class AddPage(wiz.WizardPageSimple):
def __init__(self,parent,dynawiz):
self.parent = parent
self.dynawiz = dynawiz
"""Constructor"""
wiz.WizardPageSimple.__init__(self, parent)
sizer = wx.BoxSizer(wx.VERTICAL)
self.SetSizer(sizer)
self.numPageAdd = wx.TextCtrl(self, -1, "")
self.verifyButton = wx.Button(self, id=wx.ID_ANY, label = "Confirm",name = "confirm")
self.verifyButton.Bind(wx.EVT_BUTTON, self.append_pages)
sizer.Add(self.numPageAdd, 0, wx.ALIGN_CENTRE|wx.ALL, 5)
sizer.Add(self.verifyButton,0,wx.ALIGN_CENTER|wx.ALL, 5)
sizer.Add(wx.StaticLine(self, -1), 0, wx.EXPAND|wx.ALL, 5)
#function used to add pages to pageList inside of Wizard Object containing
# this page
def append_pages(self,event):
n = int(self.numPageAdd.GetValue())
for i in range(n):
#Add n number of pages to wizard list "pageList" here....
self.dynawiz.pageList.append(TitledPage(self.parent, "Added Page"))
wx.wizard.WizardPageSimple.Chain(self.dynawiz.pageList[-2],self.dynawiz.pageList[-1])
self.parent.FindWindowById(wx.ID_FORWARD).SetLabel("Next >")
#----------------------------------------------------------------------
if __name__ == "__main__":
app = wx.App(False)
dWiz = DynaWiz()
app.MainLoop()
你知道吗,我想在我的电池做这样的事情早“令人难以置信的沮丧试图得到这个工作,”但我想接受在错误的点在接收类的通。这次真是万分感谢!这十分完美! –