Question

我对以下代码有疑问，我不明白。

为什么panel1没有扩展？

感谢。

import wx

class MyFrame(wx.Frame):
    def __init__(self, parent, mytitle, mysize):
        wx.Frame.__init__(self, parent, wx.ID_ANY, mytitle, size=mysize)
        panel1 = wx.Panel(self)
        panel2 = wx.Panel(self)
        panel3 = wx.Panel(self)

        panel1.SetBackgroundColour("green")
        panel2.SetBackgroundColour("yellow")
        panel3.SetBackgroundColour("red")

        sizer_h = wx.BoxSizer(wx.HORIZONTAL)
        sizer_v = wx.BoxSizer(wx.VERTICAL)

        st1 = wx.StaticText(panel1, -1, "TEST")
        sizer_h.Add(st1, 1, wx.EXPAND)
        sizer_v.Add(sizer_h, proportion=1, flag=wx.EXPAND)
        sizer_v.Add(panel2, proportion=2, flag=wx.EXPAND)
        sizer_v.Add(panel3, proportion=1, flag=wx.EXPAND)
        # only set the main sizer if you have more than one
        self.SetSizer(sizer_v)

app = wx.App()
mytitle = "wx.Frame & wx.Panels"
width = 300
height = 320
MyFrame(None, mytitle, (width, height)).Show()
app.MainLoop()

Answer 1

您需要修改的行是：

sizer_h.Add(st1, 1, wx.EXPAND)

应该是：

sizer_h.Add(panel1, 1, wx.EXPAND)

因为您需要调整panel1的大小，而不仅仅是字符串。

Answer 2

您想将面板添加到sizer_h，而不是st1。

import wx

class MyFrame(wx.Frame):
    def __init__(self, parent, mytitle, mysize):
        wx.Frame.__init__(self, parent, wx.ID_ANY, mytitle, size=mysize)
        panel1 = wx.Panel(self)
        panel2 = wx.Panel(self)
        panel3 = wx.Panel(self)

        panel1.SetBackgroundColour("green")
        panel2.SetBackgroundColour("yellow")
        panel3.SetBackgroundColour("red")

        sizer_h = wx.BoxSizer(wx.HORIZONTAL)
        sizer_v = wx.BoxSizer(wx.VERTICAL)

        st1 = wx.StaticText(panel1, -1, "TEST")
        sizer_h.Add(panel1, wx.EXPAND)
        sizer_v.Add(sizer_h, proportion=1, flag=wx.EXPAND)
        sizer_v.Add(panel2, proportion=2, flag=wx.EXPAND)
        sizer_v.Add(panel3, proportion=1, flag=wx.EXPAND)
        # only set the main sizer if you have more than one
        self.SetSizer(sizer_v)

app = wx.App()
mytitle = "wx.Frame & wx.Panels"
width = 300
height = 320
MyFrame(None, mytitle, (width, height)).Show()
app.MainLoop()

您现在可以看到面板扩展到其大小调整器的整个宽度，以及静态文本的高度，其余部分由空格占用。不太确定如何垂直填充面板，以便没有灰色泄漏，抱歉

Panel不会在wxPython中展开

2 个答案: