添加带有按钮的小部件 - wxPython [英] Adding a widget with a button - wxPython

问题描述

我正在尝试使用 wxPython 在 Wordpress 中创建类似于类别面板的内容.

I'm trying to create something like the categories panel in Wordpress, with wxPython.

我想弄清楚的是如何在用户单击按钮时添加小部件(例如添加新类别")

What I'm trying to figure out, is how to add a widget when the user clicks a button (like "Add New Category")

这是我的代码:

import wx

class MainWindow(wx.Frame):
    def __init__(self, parent, id, title):
        wx.Frame.__init__(self, parent, id, title, size=(300,200))

        self.panel = wx.Panel(self, -1)

        button = wx.Button(self.panel,-1,"Button")

        self.vbox = wx.BoxSizer(wx.VERTICAL)
        self.vbox.Add(button)

        add_btn = wx.Button(self.panel,-1,"Add")
        add_btn.Bind(wx.EVT_BUTTON, self.add)

        hbox = wx.BoxSizer(wx.HORIZONTAL)
        hbox.Add(add_btn)

        main_vbox = wx.BoxSizer(wx.VERTICAL)
        main_vbox.Add(self.vbox)
        main_vbox.Add(hbox)

        self.panel.SetSizer(main_vbox)

        self.Centre()
        self.Show(True)

    def add(self,event):
        self.vbox.Add((wx.Button(self.panel,-1,"Button")))

if __name__ == "__main__":
    app = wx.App()
    MainWindow(None, -1, 'Add a Button')
    app.MainLoop()

我的问题是，该按钮被添加到上一个按钮之上.我对此感到很困惑，因为如果我删除 add() 函数的 event 参数，然后在 __init__ 中调用它方法，self.add()，它工作正常.但这对我没有任何帮助，因为我需要在用户单击按钮时添加小部件.

My problem is, the button gets added on top of the previous button. I'm rather mystified by this, because if I delete the event argument of the add() function, and then call it in the __init__ method, self.add(), it works fine. But that doesn't help me any because I need to add the widgets when the user clicks the button.

非常感谢任何帮助.

推荐答案

在添加按钮后调用 self.panel.Layout().当您调整带有子项的窗口大小时(尝试使用当前代码)，会自动调用此函数，但不会在向其添加小部件时调用.

Call self.panel.Layout() after adding the button. This function is called automatically when you resize a window with children (try it with your current code), but not when you add widgets to it.

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