除非我们在 wxPython 中调整窗口大小，否则笔记本小部件无法正确显示？

Question

我在笔记本切换方面遇到了一些小问题。当我切换笔记本选项卡时，我需要调整大小以使小部件正确显示。我尝试使用 self.Refresh() 但这似乎没有做任何事情。如果您无法理解我的意思，请运行以下代码，然后切换选项卡并调整大小，您会注意到存在问题，并且可以正确显示内容。我不知道这是否是 wxPython 的问题，但我认为这是我的代码的问题。

IMAGE_NAME = []
IMAGE_DATA = []
IMAGEMORE_NAME=[]
IMAGEMORE_DATA=[]

import sys
import wx

def deletepic(self):
    try:
        self.parent.bitmap.Destroy()
    except:
        print sys.exc_info()

def sendnewpic(self):
    if self.parent.bitmap: deletepic(self)  
    if IMAGE_DATA[self.image_listsel] != '':
        try:
            print IMAGE_DATA[self.image_listsel]
            bmp = wx.Image(IMAGE_DATA[self.image_listsel], wx.BITMAP_TYPE_ANY).ConvertToBitmap()
            self.parent.scroll_img.SetScrollbars(1, 1, bmp.GetWidth(), bmp.GetHeight())
            self.parent.bitmap = wx.StaticBitmap(self.parent.scroll_img, -1, bmp, (0, 0))
            self.parent.Refresh()
        except:
            pass

def areachange(self, pg):
    print pg
    try:
        if IMAGE_DATA[self.image_listsel] == '':
            deletepic(self)
    except:
        pass

    if pg == "Regular Pictures":
        self.images_area.Show()
        self.scroll_img.Show()
        self.btnTwo.Show()
    else:
        self.images_area.Hide()
        self.scroll_img.Hide()
        self.btnTwo.Hide()
    if pg == "More Pictures":
        self.images_area.Show()
        self.scroll_img.Show()
        self.imageboxersiz.Show()
    else:
        self.imageboxersiz.Hide()
    self.Refresh()



class imageTab(wx.Panel):

    def __init__(self, parent, grandparent):
        wx.Panel.__init__(self, parent)
        self.parent = grandparent
        self.image_listsel = 0
        self.listBox = wx.ListBox(self, size=(200, -1), choices=IMAGE_NAME, style=wx.LB_SINGLE)
        self.sizer = wx.BoxSizer(wx.VERTICAL)
        btnSizer = wx.BoxSizer(wx.VERTICAL) #change to horizontal for side by side
        self.sizerMain = wx.BoxSizer()
        self.listBox.Bind(wx.EVT_LISTBOX_DCLICK, self.reName)
        self.listBox.Bind(wx.EVT_LISTBOX, self.imagesel)
        btn = wx.Button(self, label="Create New",size=(200, 40))
        btnTwo = wx.Button(self, label="Test 2",size=(200, 40))
        btn.Bind(wx.EVT_BUTTON, self.newAddImage)
        self.sizer.Add(self.listBox, proportion=1, flag=wx.TOP | wx.EXPAND | wx.LEFT, border=5)
        btnSizer.Add(btn, 0, wx.ALL, 5)
        btnSizer.Add(btnTwo, 0, wx.ALL, 5)
        self.sizer.Add(btnSizer)
        self.sizerMain.Add(self.sizer, proportion=0, flag=wx.BOTTOM | wx.EXPAND, border=0)
        self.SetSizer(self.sizerMain)

    def imagesel(self, evt):
        self.image_listsel = self.listBox.GetSelection()
        sendnewpic(self)

    def newAddImage(self, evt):
        IMAGE_NAME.append('hi')
        IMAGE_DATA.append('')
        self.listBox.Set(IMAGE_NAME)
        self.listBox.SetSelection(len(IMAGE_NAME)-1)
        self.imagesel(None) #making it a selected image, globally

    def reName(self,parent):
        sel = self.listBox.GetSelection()
        text = self.listBox.GetString(sel)
        renamed = wx.GetTextFromUser('Rename item', 'Rename dialog', text)
        if renamed != '':
            IMAGE_NAME.pop(sel)
            IMAGE_NAME.insert(sel,renamed)
            self.listBox.Set(IMAGE_NAME)
            self.listBox.SetSelection(sel)

class objectTab(wx.Panel):

    def __init__(self, parent, grandparent):
        wx.Panel.__init__(self, parent)
        self.parent = grandparent
        self.image_listsel = 0
        self.listBox = wx.ListBox(self, size=(200, -1), choices=IMAGEMORE_NAME, style=wx.LB_SINGLE)
        self.sizer = wx.BoxSizer(wx.VERTICAL)
        btnSizer = wx.BoxSizer(wx.VERTICAL) #change to horizontal for side by side
        self.sizerMain = wx.BoxSizer()
        self.listBox.Bind(wx.EVT_LISTBOX_DCLICK, self.reName)
        self.listBox.Bind(wx.EVT_LISTBOX, self.imagesel)
        btn = wx.Button(self, label="Create New",size=(200, 40))
        btnTwo = wx.Button(self, label="Test 2",size=(200, 40))
        btn.Bind(wx.EVT_BUTTON, self.newAddImage)
        self.sizer.Add(self.listBox, proportion=1, flag=wx.TOP | wx.EXPAND | wx.LEFT, border=5)
        btnSizer.Add(btn, 0, wx.ALL, 5)
        btnSizer.Add(btnTwo, 0, wx.ALL, 5)
        self.sizer.Add(btnSizer)
        self.sizerMain.Add(self.sizer, proportion=0, flag=wx.BOTTOM | wx.EXPAND, border=0)
        self.SetSizer(self.sizerMain)

    def imagesel(self, evt):
        self.image_listsel = self.listBox.GetSelection()

    def newAddImage(self, evt):
        IMAGEMORE_NAME.append('New image')
        IMAGEMORE_DATA.append('')
        self.listBox.Set(IMAGEMORE_NAME)
        self.listBox.SetSelection(len(IMAGEMORE_NAME)-1)
        self.imagesel(None) #making it a selected image, globally

    def reName(self,parent):
        sel = self.listBox.GetSelection()
        text = self.listBox.GetString(sel)
        renamed = wx.GetTextFromUser('Rename item', 'Rename dialog', text)
        if renamed != '':
            IMAGEMORE_NAME.pop(sel)
            IMAGEMORE_NAME.insert(sel,renamed)
            self.listBox.Set(IMAGEMORE_NAME)
            self.listBox.SetSelection(sel)


class MyPanel(wx.Panel):

    def __init__(self, *args, **kwargs):

        wx.Panel.__init__(self, *args, **kwargs)
        self.notebook = wx.Notebook(self, size=(225, -1))
        self.tab_images = imageTab(self.notebook, self)
        self.notebook.AddPage(self.tab_images, "Regular Pictures", select=True)

        self.tab_imagesmore = objectTab(self.notebook, self)
        self.notebook.AddPage(self.tab_imagesmore, "More Pictures")

        self.scroll_img = wx.ScrolledWindow(self, -1)
        self.scroll_img.SetScrollbars(1, 1, 600, 400)

        self.images_area = wx.StaticBox(self, -1, '')
        self.sizerBox = wx.StaticBoxSizer(self.images_area, wx.HORIZONTAL)

        self.sizerBox2 = wx.BoxSizer()
        self.sizerBox.Add(self.scroll_img, 1, wx.EXPAND|wx.ALL, 10)
        self.sizerBox2.Add(self.sizerBox, 1, wx.EXPAND|wx.ALL, 10)
        self.sizer = wx.BoxSizer()
        self.sizer.Add(self.notebook, proportion=0, flag=wx.EXPAND)
        btnSizer = wx.BoxSizer(wx.VERTICAL) #change to horizontal for side by side
        self.btnTwo = wx.Button(self, label="Load File", size=(200, 40))
        self.bmp = None
        self.bitmap = None
        self.imageboxersiz=wx.ComboBox(self, -1, "None Selected!",(0, 0), (190,20),IMAGE_NAME, wx.CB_DROPDOWN)

        btnSizer.Add(self.imageboxersiz, 0, wx.TOP, 15)
        btnSizer.Add(self.btnTwo, 0, wx.TOP, 15)

        self.sizerBox2.Add(btnSizer)
        #
        self.sizer.Add(self.sizerBox2, proportion=1, flag=wx.EXPAND)

        self.SetSizer(self.sizer)
        self.notebook.Bind(wx.EVT_NOTEBOOK_PAGE_CHANGED, self.OnPageChanged)
        areachange(self, self.notebook.GetPageText(0))

    def OnClickTop(self, event):
        self.scroll_img.Scroll(600, 400)

    def OnClickBottom(self, event):
        self.scroll_img.Scroll(1, 1)

    def OnPageChanged(self, event):
        new = event.GetSelection()
        areachange(self, self.notebook.GetPageText(new))
        event.Skip()

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


class MainWindow(wx.Frame):
    def __init__(self, *args, **kwargs):
        wx.Frame.__init__(self, *args, **kwargs)
        self.panel = MyPanel(self)
        self.Show()


app = wx.App(False)
win = MainWindow(None, size=(600, 400))
app.MainLoop()

非常感谢。

Answer 1

只需将 self.Refresh() 更改为 self.Layout() 即可。无论如何，在 Windows 7 上为我工作。