python精要（80）－wxpython(2)-helloworld

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Mon Feb 22 08:35:42 2021
@author: myhaspl
"""

import wx
class MyHelloFrame(wx.Frame):
	"""
	框架
	"""
	def __init__(self, *args, **kw):
		# 调用父类构造函数
		super(MyHelloFrame, self).__init__(*args, **kw)

		# 在frame中创建Panel面板
		pnl = wx.Panel(self)

		# 使用较大的粗体字体设置静态文本控件
		st = wx.StaticText(pnl, label="粗体，较大字体!")
		font = st.GetFont()
		font.PointSize += 10
		font = font.Bold()
		st.SetFont(font)

		# 创建一个sizer管理子widget层
		sizer = wx.BoxSizer(wx.VERTICAL)
		sizer.Add(st, wx.SizerFlags().Border(wx.TOP|wx.LEFT, 25))
		pnl.SetSizer(sizer)

		# 创建菜单栏
		self.makeMenuBar()

		# 创建状态栏
		self.CreateStatusBar()
		self.SetStatusText("欢迎学习wxpython!")


	def makeMenuBar(self):
		"""
		A menu bar is composed of menus, which are composed of menu items.
		This method builds a set of menus and binds handlers to be called
		when the menu item is selected.
		"""

		# Make a file menu with Hello and Exit items
		fileMenu = wx.Menu()
		# The "\t..." syntax defines an accelerator key that also triggers
		# the same event
		helloItem = fileMenu.Append(-1, "&Hello...\tCtrl-H",
	                            "Help string shown in status bar for this menu item")
		fileMenu.AppendSeparator()
		# When using a stock ID we don't need to specify the menu item's
		# label
		exitItem = fileMenu.Append(wx.ID_EXIT)

		# Now a help menu for the about item
		helpMenu = wx.Menu()
		aboutItem = helpMenu.Append(wx.ID_ABOUT)

		# Make the menu bar and add the two menus to it. The '&' defines
		# that the next letter is the "mnemonic" for the menu item. On the
		# platforms that support it those letters are underlined and can be
		# triggered from the keyboard.
		menuBar = wx.MenuBar()
		menuBar.Append(fileMenu, "&File")
		menuBar.Append(helpMenu, "&Help")

		# Give the menu bar to the frame
		self.SetMenuBar(menuBar)

		# Finally, associate a handler function with the EVT_MENU event for
		# each of the menu items. That means that when that menu item is
		# activated then the associated handler function will be called.
		self.Bind(wx.EVT_MENU, self.OnHello, helloItem)
		self.Bind(wx.EVT_MENU, self.OnExit,  exitItem)
		self.Bind(wx.EVT_MENU, self.OnAbout, aboutItem)


	def OnExit(self, event):
		"""Close the frame, terminating the application."""
		self.Close(True)


	def OnHello(self, event):
		"""Say hello to the user."""
		wx.MessageBox("Hello again from wxPython")


	def OnAbout(self, event):
		"""Display an About Dialog"""
		wx.MessageBox("This is a wxPython Hello World sample",
	              "About Hello World 2",
	              wx.OK|wx.ICON_INFORMATION)


if __name__ == '__main__':
	# When this module is run (not imported) then create the app, the
	# frame, show it, and start the event loop.
	app = wx.App()
	frm = MyHelloFrame(None, title='复杂的hello,world')
	frm.Show()
	app.MainLoop()

wx.Panel面板是放置控件的窗口