Question

我正在使用wx制作用于运行其他程序的GUI。我有两个Notebook选项卡：第一个用于输入，第二个用于输出我的程序。我想设置它，以便用户在InputPanel中指示程序输出的目录，并且OutputPanel中的ComboBox将使用此目录的内容进行更新。我的代码的精简版本如下：

    #!/usr/bin/python

    import glob
    import wx

    class InputPanel(wx.Panel):
        dirF = 0
        def __init__(self, parent):
            wx.Panel.__init__(self, parent=parent, id=wx.ID_ANY)

            self.dirFileText = wx.StaticText(self, label="Output Directory:")
            self.dirFile = wx.TextCtrl(self, value="fuda", style = wx.TE_PROCESS_ENTER)
            self.Bind(wx.EVT_TEXT, self.EvtText, self.dirFile)

            sizer = wx.BoxSizer(wx.HORIZONTAL)
            sizer.Add(self.dirFileText, 0, wx.ALL, 2)
            sizer.Add(self.dirFile, 0, wx.ALL|wx.EXPAND,2)
            self.SetSizer(sizer)
            sizer.Fit(self)

        def EvtText(self, event):
            event.GetString()
            InputPanel.dirF = self.dirFile.GetValue()

    class OutputPanel(wx.Panel):
        def __init__(self, parent):
            wx.Panel.__init__(self, parent=parent, id=wx.ID_ANY)

            self.dirText = wx.StaticText(self, label="Choice?")
            self.dirT = wx.ComboBox(self, choices='', style=wx.CB_READONLY)
            self.dirT.SetItems(glob.glob("%s/*.dat" % (InputPanel.dirF)))
            self.Bind(wx.EVT_COMBOBOX, self.onSelect, self.dirT)

            sizer = wx.BoxSizer(wx.HORIZONTAL)
            sizer.Add(self.dirText, 0, wx.ALL, 2)
            sizer.Add(self.dirT, 0, wx.ALL|wx.EXPAND, 2)
            self.SetSizer(sizer)
            sizer.Fit(self)

        def onSelect(self, event):
            event.GetSelection()

    class Notebook(wx.Notebook):
        def __init__(self, parent):
            wx.Notebook.__init__(self, parent, id=wx.ID_ANY, style=wx.BK_DEFAULT)

            tabOne = InputPanel(self)
            self.AddPage(tabOne, "Input")
            tabTwo = OutputPanel(self)
            self.AddPage(tabTwo, "Output")

            self.Bind(wx.EVT_NOTEBOOK_PAGE_CHANGED, self.onPageChanged)
            self.Bind(wx.EVT_NOTEBOOK_PAGE_CHANGING, self.onPageChanging)

        def onPageChanged(self, event):
            event.Skip()

        def onPageChanging(self, event):
            event.Skip()

class MainWindow(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, wx.ID_ANY, "nmrPipeFit", size=(600,400))
        panel = wx.Panel(self)

        # Setting up the menu
        filemenu = wx.Menu()
        menuExit = filemenu.Append(wx.ID_EXIT, "E&xit", "Exit the program")
        menubar = wx.MenuBar() # Create the menubar
        menubar.Append(filemenu, "&File") # Add file menu to menubar
        self.SetMenuBar(menubar) # Add menubar to frame
        # Set menu events
        self.Bind(wx.EVT_MENU, self.OnExit, menuExit)

        notebook = Notebook(panel)
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(notebook, 1, wx.ALL|wx.EXPAND, 5)
        panel.SetSizer(sizer)
        sizer.Fit(self)
        self.Layout()
        self.Show()

    def OnExit(self, event):
        self.Close(True) # Close the frame

if __name__== "__main__":
    app=wx.PySimpleApp()
    frame = MainWindow()
    app.MainLoop()

我已尝试了几种不同的方法来获取组合框的选项列表，以便通过InputPanel中的目录更改进行更新，但没有运气。任何帮助将不胜感激。

先谢谢，迈克尔莱瑟姆

Answer 1

嗯，有一个丑陋的黑客方式来做它和优雅的方式来做到这一点。实际上，可能有几个黑客。让我们来看看最常见的一个：

在笔记本的页面更改事件中，您可以告诉输出面板执行以下操作：inputPanelRef.dirFile.GetValue（）然后根据需要更新组合框的条目。您可能需要从Notebook小部件中执行此操作。

我更喜欢在面板之间传递信息的方式是使用Pubsub。这里有一个很好的例子： http://www.blog.pythonlibrary.org/2010/06/27/wxpython-and-pubsub-a-simple-tutorial/

Answer 2

您可以为每个面板添加一个getter和setter，如下所示：

#!/usr/bin/python

import wx
import os

class InputPanel(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent=parent, id=wx.ID_ANY)

        self.dirFileText = wx.StaticText(self, label="Output Directory:")
        self.dirFile = wx.TextCtrl(self, value=".", style = wx.TE_PROCESS_ENTER)
        self.Bind(wx.EVT_TEXT, self.EvtText, self.dirFile)

        sizer = wx.BoxSizer(wx.HORIZONTAL)
        sizer.Add(self.dirFileText, 0, wx.ALL, 2)
        sizer.Add(self.dirFile, 0, wx.ALL|wx.EXPAND,2)
        self.SetSizer(sizer)
        sizer.Fit(self)

        self._dirF = '.'

    def EvtText(self, event):
        event.GetString()
        self._dirF = self.dirFile.GetValue()

    def GetDirF(self):
        return self._dirF

class OutputPanel(wx.Panel):
    def __init__(self, parent):
        wx.Panel.__init__(self, parent=parent, id=wx.ID_ANY)

        self.dirText = wx.StaticText(self, label="Choice?")
        self.dirT = wx.ComboBox(self, choices='', style=wx.CB_READONLY)
        self.Bind(wx.EVT_COMBOBOX, self.onSelect, self.dirT)

        sizer = wx.BoxSizer(wx.HORIZONTAL)
        sizer.Add(self.dirText, 0, wx.ALL, 2)
        sizer.Add(self.dirT, 0, wx.ALL|wx.EXPAND, 2)
        self.SetSizer(sizer)
        sizer.Fit(self)

    def onSelect(self, event):
        event.GetSelection()

    def setDirT(self, dirT):
        self.dirT.Clear()
        for f in dirT:
            self.dirT.Insert(f, 0)


class Notebook(wx.Notebook):
    def __init__(self, parent):
        wx.Notebook.__init__(self, parent, id=wx.ID_ANY, style=wx.BK_DEFAULT)

        self.tabOne = InputPanel(self)
        self.AddPage(self.tabOne, "Input")
        self.tabTwo = OutputPanel(self)
        self.AddPage(self.tabTwo, "Output")

        self.Bind(wx.EVT_NOTEBOOK_PAGE_CHANGED, self.onPageChanged)

    def onPageChanged(self, event):
        if event.GetSelection() == 1:
            dirf = self.tabOne.GetDirF()
            files = os.listdir(dirf)
            self.tabTwo.setDirT(files)
        event.Skip()

class MainWindow(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, None, wx.ID_ANY, "nmrPipeFit", size=(600,400))
        panel = wx.Panel(self)

        # Setting up the menu
        filemenu = wx.Menu()
        menuExit = filemenu.Append(wx.ID_EXIT, "E&xit", "Exit the program")
        menubar = wx.MenuBar() # Create the menubar
        menubar.Append(filemenu, "&File") # Add file menu to menubar
        self.SetMenuBar(menubar) # Add menubar to frame
        # Set menu events
        self.Bind(wx.EVT_MENU, self.OnExit, menuExit)

        notebook = Notebook(panel)
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(notebook, 1, wx.ALL|wx.EXPAND, 5)
        panel.SetSizer(sizer)
        sizer.Fit(self)
        self.Layout()
        self.Show()

    def OnExit(self, event):
        self.Close(True) # Close the frame

if __name__== "__main__":
    app=wx.PySimpleApp()
    frame = MainWindow()
    app.MainLoop()

您可能希望稍微清理一下，但这说明了如何做到这一点。

根据另一个Notebook选项卡中的TextCtrl（）值更改wx.ComboBox（）中的选项

2 个答案: