我正在尝试构建一个 3 面板 GUI，一切都很顺利，直到我尝试将面板/窗口嵌套在其他面板中并在 GUI 启动时隐藏它们。
看到这张图片...黄色/绿色/蓝色框在初始化期间自动扩展以填充它们的面板，但是在 wx.Panel 初始化期间构建了小紫色框但随后隐藏，直到 2 秒计时器到期然后在那个时候该对象的 Show() 方法被调用。那时它不会填满包含面板。似乎在初始化期间隐藏面板会导致面板大小调整器选择默认大小 20x20。
这是代码：
import wx
import wx.lib.scrolledpanel as scrolled
class NavPanel(wx.Panel):
""""""
def __init__(self, parent, actionPanel):
"""Constructor"""
wx.Panel.__init__(self, parent) #, size=(200,600))
self.actionPanel = actionPanel
self.SetBackgroundColour("Yellow")
class ActionPanel(wx.Panel):
""""""
def __init__(self, parent, target_item=None):
"""Constructor"""
wx.Panel.__init__(self, parent)
self.SetBackgroundColour("Green")
self.sc = NestedScrolledActionPanel(self)
sizer = wx.BoxSizer(wx.HORIZONTAL)
sizer.Add(self.sc, 1, wx.EXPAND)
self.SetSizer(sizer)
def show_child(self):
# Putting a sizer here doesn't work either...
self.sc.Show()
class NestedScrolledActionPanel(wx.ScrolledWindow):
""""""
def __init__(self, parent, target_item=None):
"""Constructor"""
wx.ScrolledWindow.__init__(self, parent)
self.SetBackgroundColour("Purple")
# I don't want to show this at starutp, but hiding it causes the sizer to startup at 20x20!
# Comment out this line and the sizer set in ActionPanel works, but you see it at startup
self.Hide()
class ConsolePanel(scrolled.ScrolledPanel):
""""""
def __init__(self, parent):
"""Constructor"""
scrolled.ScrolledPanel.__init__(self, parent, -1)
self.SetBackgroundColour("Blue")
class MainPanel(wx.Panel):
""""""
def __init__(self, parent):
"""Constructor"""
wx.Panel.__init__(self, parent)
mainSplitter = wx.SplitterWindow(self)
topSplitter = wx.SplitterWindow(mainSplitter)
self.rightPanel = ActionPanel(topSplitter)
self.rightPanel.SetBackgroundColour("Green")
leftPanel = NavPanel(topSplitter, self.rightPanel)
leftPanel.SetBackgroundColour("Yellow")
topSplitter.SplitVertically(leftPanel, self.rightPanel, sashPosition=0)
topSplitter.SetMinimumPaneSize(200)
bottomPanel = ConsolePanel(mainSplitter)
mainSplitter.SplitHorizontally(topSplitter, bottomPanel, sashPosition=400)
mainSplitter.SetSashGravity(1)
sizer = wx.BoxSizer(wx.HORIZONTAL)
sizer.Add(mainSplitter, 1, wx.EXPAND)
self.SetSizer(sizer)
return
########################################################################
class MainFrame(wx.Frame):
""""""
def __init__(self):
"""Constructor"""
wx.Frame.__init__(self, None, title="Sizer Test",
size=(800,600))
self.panel = MainPanel(self)
self.Centre()
self.Show()
self.timer = wx.Timer(self)
self.Bind(wx.EVT_TIMER, self.OnTimer, self.timer)
self.timer.Start(2000)
def OnTimer(self, e):
self.panel.rightPanel.show_child()
if __name__ == '__main__':
app = wx.App(redirect=False)
print "Launching frame"
frame = MainFrame()
print "starting mainloop"
app.MainLoop()
我希望在 GUI 启动时隐藏此面板的原因是因为我将在该 ActionPanel 空间（绿色框）中有许多不同的面板，并且当用户单击黄色框中的树节点时，显示在将隐藏绿色框并显示不同的面板。如果我在启动时不隐藏所有面板，它们会“堆叠”在彼此之上，我将不得不设置一个计时器来通过并在 GUI 启动后的某个时间点将它们全部隐藏？？？这似乎很胡扯。我还能怎么做？