wxPython - 选择正确的sizer以在应用程序中使用

Question

我无法弄清楚如何让wxPython中的sizer以我想要的方式工作(除此之外:我是唯一一个认为wxPython记录不完好的人吗？).我有4个按钮和一个textctrl,我想安排如下:

==============================================
|WINDOW TITLE                          _ [] X|
|============================================|
|Button1  |  Button2  |   Button3  |  Button4|
|--------------------------------------------|
|xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx|
|xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx|
|xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx|
|xxxxxxxxxxxxxxxxxxTextCtrlxxxxxxxxxxxxxxxxxx|
|xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx|
|xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx|
|xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx|
==============================================

按钮应水平扩展,但不能垂直扩展,textctrl应水平和垂直展开.我已经尝试了wxPython演示程序中列出的几乎所有sizer,但没有一个工作 - 多个boxsizer,gridsizer + boxsizeres,plain gridsizer,flexgridsizer和rowcolsizer但是没有一个工作,有人可以帮忙吗？作为参考,这是我现在的代码.

            ...snip...
            panel = wx.Panel(self, -1)
            select_file = wx.Button(panel, self.BUTTON_0, "Select File")
            button1 = wx.Button(panel, self.BUTTON_1, "250 Words") 
            button2 = wx.Button(panel, self.BUTTON_2, "500 Words") 
            button3 = wx.Button(panel, self.BUTTON_3, "750 Words") 
            self.txt = wx.TextCtrl(panel, -1, "", style=wx.TE_MULTILINE | wx.TE_READONLY)

            # Now to re-do this with gridsizers instead.
            # 4 rows, 4 columns, 2 pixel gap horizontally and vertically.
            grid = rcs.RowColSizer()

            # These buttons need to expand to fill their space, and then
            # expand when the windows are resized.
            grid.Add( select_file, row=1, col=1 )
            grid.Add( button1, row=1, col=2 )
            grid.Add( button2, row=1, col=3 )
            grid.Add( button3, row=1, col=4 )
            grid.Add( self.txt, row=2, col=1 )
            ...snip...

Answer 1

我花了一段时间来弄明白这一点.这是我一直用wxPython做的事情.基本上你需要嵌套box sizer.你需要一个垂直盒子大小调整器,它可以容纳两个水平盒子大小.

这是您需要的代码:

import wx

class sizertest(wx.Panel):

    def __init__(self,parent):
        wx.Panel.__init__(self,parent)
        vsizer = wx.BoxSizer(wx.VERTICAL)
        hsizer1 = wx.BoxSizer(wx.HORIZONTAL)

        button1 = wx.Button(self,-1,"button 1")
        self.Bind( wx.EVT_BUTTON,self.button1,button1)
        hsizer1.Add(button1,1,wx.EXPAND)

        button2 = wx.Button(self,-1,"button 2")
        self.Bind( wx.EVT_BUTTON,self.button2,button2)
        hsizer1.Add(button2,1,wx.EXPAND)

        vsizer.Add(hsizer1,.1,wx.EXPAND)
        self.SetSizer(vsizer)

        tc = wx.TextCtrl(self,-1,"",style=wx.TE_MULTILINE)
        hsizer2 = wx.BoxSizer(wx.HORIZONTAL)
        hsizer2.Add(tc,1,wx.EXPAND)
        vsizer.Add(hsizer2,1,wx.EXPAND)

    def button1(self,event):pass
    def button2(self,event):pass


if __name__ == "__main__":
    app = wx.App()
    frame = wx.Frame(parent=None, id=-1, title="sizer test")
    panel = sizertest(frame)

    frame.Show()
    app.MainLoop()

垂直sizer vsizer包含两个水平sizer.第一个水平sizer包含您想要添加的多个按钮,它们可以水平扩展.因为您将其添加到垂直分级器中,其"重量"的数字小于1,所以它不会垂直扩展.第二个水平sizer保存文本控件,它可以扩展以占用所有剩余的水平和垂直空间.随着窗口的扩展,两个尺寸都会扩大.

我建议您通过Rappin和Dunn获取wxPython in Action一书 - 它确实帮助我理解了wxPython sizer和屏幕布局的工作原理.

我为99%的wxPython程序使用嵌套的boxsizer.

生硬的