wxpython：wx.Menu 菜单示例

pip install wxpython==4.2
wxPython-4.2.0-cp37-cp37m-win_amd64.whl (18.0 MB)
Successfully installed wxpython-4.2.0

cd \Python37\Scripts
wxdemo.exe 下载 wxPython-demo-4.2.0.tar.gz
wxdocs.exe 下载 wxPython-docs-4.2.0.tar.gz

编写 test_wx_menu.py 如下

# -*- coding: utf-8 -*-
import os
import sys
import time
import wx
import images 
# images.py 在 C:\Users\username\AppData\Local\wxPython\wxPython-demo-4.2.0\demo\
#-------------------------------------------------------------------class MyFrame(wx.Frame):def __init__(self, parent, id):wx.Frame.__init__(self, parent, id, 'Playing with menus', size=(600,300))self.CenterOnScreen()self.CreateStatusBar()self.SetStatusText("This is the statusbar")tc = wx.TextCtrl(self, -1, """
A bunch of bogus menus have been created for this frame.  You
can play around with them to see how they behave and then
check the source for this sample to see how to implement them.
""", style=wx.TE_READONLY|wx.TE_MULTILINE)# Prepare the menu barmenuBar = wx.MenuBar()# 1st menu from leftmenu1 = wx.Menu()menu1.Append(101, "&Mercury", "This the text in the Statusbar")menu1.Append(102, "&Venus", "")if False:# This is how you would create the menu item if you want to# change some of the visible attributes.item = wx.MenuItem(id=103, text="&Earth", helpString="You may select Earth too")item.SetFont(wx.Font(wx.FontInfo(10).Bold()))menu1.Append(item)else:# But we'll just do it the normal way for this samplemenu1.Append(103, "&Earth", "You may select Earth too")menu1.AppendSeparator()menu1.Append(104, "&Close", "Close this frame")# Add menu to the menu barmenuBar.Append(menu1, "&Planets")# 2nd menu from leftmenu2 = wx.Menu()menu2.Append(201, "Hydrogen")menu2.Append(202, "Helium")# a submenu in the 2nd menusubmenu = wx.Menu()submenu.Append(2031,"Lanthanium")submenu.Append(2032,"Cerium")submenu.Append(2033,"Praseodymium")menu2.Append(203, "Lanthanides", submenu)# Append 2nd menumenuBar.Append(menu2, "&Elements")menu3 = wx.Menu()# Radio itemsmenu3.Append(301, "IDLE", "a Python shell using tcl/tk as GUI", wx.ITEM_RADIO)menu3.Append(302, "PyCrust", "a Python shell using wxPython as GUI", wx.ITEM_RADIO)menu3.Append(303, "psi", "a simple Python shell using wxPython as GUI", wx.ITEM_RADIO)menu3.AppendSeparator()menu3.Append(304, "project1", "", wx.ITEM_NORMAL)menu3.Append(305, "project2", "", wx.ITEM_NORMAL)menuBar.Append(menu3, "&Shells")menu4 = wx.Menu()# Check menu itemsmenu4.Append(401, "letters", "abcde...", wx.ITEM_CHECK)menu4.Append(402, "digits", "123...", wx.ITEM_CHECK)menu4.Append(403, "letters and digits", "abcd... + 123...", wx.ITEM_CHECK)menuBar.Append(menu4, "Chec&k")menu5 = wx.Menu()# Show how to put an icon in the menu itemitem = wx.MenuItem(menu5, 500, "&Smile!\tCtrl+S", "This one has an icon")item.SetBitmap(images.Smiles.GetBitmap())menu5.Append(item)menuitemwithbmp = wx.MenuItem(menu5, wx.ID_ANY, "Submenu with Bitmap")# Show how to change the background colour of the menu itemmenuitemwithbmp.SetBackgroundColour(wx.YELLOW)# Show how to change the menu item's text colourmenuitemwithbmp.SetTextColour(wx.BLUE)# Show how to change the menu item's fontmenuitemwithbmp.SetFont(wx.Font(10, wx.FONTFAMILY_DEFAULT, wx.FONTSTYLE_NORMAL, wx.FONTWEIGHT_BOLD, False, ''))submenu = wx.Menu(style=wx.MENU_TEAROFF)submenu.Append(wx.MenuItem(menu5, wx.ID_ANY, "Woot!"))menuitemwithbmp.SetBitmap(images.book.GetBitmap())menuitemwithbmp.SetSubMenu(submenu)menu5.Append(menuitemwithbmp)# Shortcutsmenu5.Append(501, "Interesting thing\tCtrl+A", "Note the shortcut!")menu5.AppendSeparator()menu5.Append(502, "Hello\tShift+H")menu5.AppendSeparator()menu5.Append(503, "remove the submenu")menu6 = wx.Menu()menu6.Append(601, "Submenu Item")menu5.Append(504, "submenu", menu6)menu5.Append(505, "remove this menu")menu5.Append(506, "this is updated")menu5.Append(507, "insert after this...")menu5.Append(508, "...and before this")menuBar.Append(menu5, "&Fun")self.SetMenuBar(menuBar)# Menu eventsself.Bind(wx.EVT_MENU_HIGHLIGHT_ALL, self.OnMenuHighlight)self.Bind(wx.EVT_MENU, self.Menu101, id=101)self.Bind(wx.EVT_MENU, self.Menu102, id=102)self.Bind(wx.EVT_MENU, self.Menu103, id=103)self.Bind(wx.EVT_MENU, self.CloseWindow, id=104)self.Bind(wx.EVT_MENU, self.Menu201, id=201)self.Bind(wx.EVT_MENU, self.Menu202, id=202)self.Bind(wx.EVT_MENU, self.Menu2031, id=2031)self.Bind(wx.EVT_MENU, self.Menu2032, id=2032)self.Bind(wx.EVT_MENU, self.Menu2033, id=2033)self.Bind(wx.EVT_MENU, self.Menu301To303, id=301)self.Bind(wx.EVT_MENU, self.Menu301To303, id=302)self.Bind(wx.EVT_MENU, self.Menu301To303, id=303)self.Bind(wx.EVT_MENU, self.Menu304, id=304)self.Bind(wx.EVT_MENU, self.Menu305, id=305)# Range of menu itemsself.Bind(wx.EVT_MENU_RANGE, self.Menu401To403, id=401, id2=403)self.Bind(wx.EVT_MENU, self.Menu500, id=500)self.Bind(wx.EVT_MENU, self.Menu501, id=501)self.Bind(wx.EVT_MENU, self.Menu502, id=502)self.Bind(wx.EVT_MENU, self.TestRemove, id=503)self.Bind(wx.EVT_MENU, self.TestRemove2, id=505)self.Bind(wx.EVT_MENU, self.TestInsert, id=507)self.Bind(wx.EVT_MENU, self.TestInsert, id=508)wx.GetApp().Bind(wx.EVT_UPDATE_UI, self.TestUpdateUI, id=506)# Methodsdef OnMenuHighlight(self, event):# Show how to get menu item info from this event handlerid = event.GetMenuId()item = self.GetMenuBar().FindItemById(id)if item:text = item.GetItemLabelText()help = item.GetHelp()# but in this case just call Skip so the default is doneevent.Skip()def Menu101(self, event):print('Welcome to Mercury\n')def Menu102(self, event):print('Welcome to Venus\n')def Menu103(self, event):print('Welcome to the Earth\n')def CloseWindow(self, event):self.Close()def Menu201(self, event):print('Chemical element number 1\n')def Menu202(self, event):print('Chemical element number 2\n')def Menu2031(self, event):print('Element number 57\n')def Menu2032(self, event):print('Element number 58\n')def Menu2033(self, event):print('Element number 59\n')def Menu301To303(self, event):id = event.GetId()print('Event id: %d\n' % id)def Menu304(self, event):print('Not yet available\n')def Menu305(self, event):print('Still vapour\n')def Menu401To403(self, event):print('From a EVT_MENU_RANGE event\n')def Menu500(self, event):print('Have a happy day!\n')def Menu501(self, event):print('Look in the code how the shortcut has been realized\n')def Menu502(self, event):print('Hello from Jean-Michel\n')def TestRemove(self, evt):mb = self.GetMenuBar()submenuItem = mb.FindItemById(601)if not submenuItem:returnsubmenu = submenuItem.GetMenu()menu = submenu.GetParent()# This works#menu.Remove(504)# this also worksmenu.RemoveItem(mb.FindItemById(504))# This doesn't work, as expected since submenuItem is not on menu#menu.RemoveItem(submenuItem)def TestRemove2(self, evt):mb = self.GetMenuBar()mb.Remove(4)def TestUpdateUI(self, evt):text = time.ctime()evt.SetText(text)def TestInsert(self, evt):theID = 508# get the menumb = self.GetMenuBar()menuItem = mb.FindItemById(theID)menu = menuItem.GetMenu()# figure out the position to insert atpos = 0for i in menu.GetMenuItems():if i.GetId() == theID:breakpos += 1# now insert the new itemID = wx.NewIdRef()item = wx.MenuItem(menu, ID, "NewItem " + str(ID))menu.InsertItem(pos, item)#---------------------------------------------------------------------------class TestPanel(wx.Panel):def __init__(self, parent, id):wx.Panel.__init__(self, parent, -1)b = wx.Button(self, -1, "Show the Menu sample", (50,50))self.Bind(wx.EVT_BUTTON, self.OnButton, b)def OnButton(self, evt):win = MyFrame(self, -1)win.Show(True)#-------------------------------------------------------------------
overview = """\
A demo of using wx.MenuBar and wx.Menu in various ways.A menu is a popup (or pull down) list of items, one of which may be selected
before the menu goes away (clicking elsewhere dismisses the menu). Menus may be
used to construct either menu bars or popup menus.A menu item has an integer ID associated with it which can be used to identify
the selection, or to change the menu item in some way. A menu item with a special
identifier -1 is a separator item and doesn't have an associated command but just
makes a separator line appear in the menu.Menu items may be either normal items, check items or radio items. Normal items
don't have any special properties while the check items have a boolean flag associated
to them and they show a checkmark in the menu when the flag is set. wxWindows
automatically toggles the flag value when the item is clicked and its value may
be retrieved using either IsChecked method of wx.Menu or wx.MenuBar itself or by
using wxEvent.IsChecked when you get the menu notification for the item in question.The radio items are similar to the check items except that all the other items
in the same radio group are unchecked when a radio item is checked. The radio group
is formed by a contiguous range of radio items, i.e. it starts at the first item of
this kind and ends with the first item of a different kind (or the end of the menu).
Notice that because the radio groups are defined in terms of the item positions
inserting or removing the items in the menu containing the radio items risks to not
work correctly. Finally note that the radio items are only supported under Windows
and GTK+ currently."""if __name__ == '__main__':app = wx.App(False) # False: 意味着不重定向标准输出和错误输出到窗口上frame = MyFrame(parent=None, id=wx.ID_ANY)frame.Show(True)app.MainLoop()

运行 python test_wx_menu.py

其中大段英文说明推荐用【百度翻译】软件翻译。