Standard file selection box in wxpython

1   #  /Usr/bin/Python  2   #  -*-<Coding = UTF-8> -*-  3   4   """  5   This example is a basic wxpython GUI.ProgramIt mainly shows how the file dialog box works.  6   """  7   8   Import WX  9   Import  OS  10   11   Class  Guimainframe (wx. Frame ):  12       13       Def   _ Init __  (Self ):  14 Wx. Frame. _ Init __ (Self, parent = none, id =-1, Title = "" , Pos = wx. defaultposition, size = Wx. defaultsize)  15 Panel = Wx. Panel (Self)  16 Panel. setbackgroundcolour ( "  White  "  )  17   18       #  Menu Bar  19 Menubar = Wx. menubar ()  20      21       #  File menu  22 Filemenu = Wx. menu ()  23 Filemenu. append (-1, "  & Open  " , ""  )  24 Menubar. append (filemenu, "  & File  "  ) 25   Self. BIND (wx. evt_menu, self. onfileopen)  26   27       #  Edit menu  28 Editmenu = Wx. menu ()  29 Editmenu. append (-1, "  & Copy  " , ""  )  30 Menubar. append (editmenu,"  & Edit  "  )  31   32       #  Help/about menu  33 Helpmenu = Wx. menu ()  34 Helpmenu. append (-1, "  About  " , ""  ) 35 Menubar. append (helpmenu, "  & Help  "  )  36       37       #  Call setmenubar to display it in the Framework.  38   Self. setmenubar (menubar)  39       40       #  Add a toolbar. Note: if you cannot create a toolbar with toolbar = wx. toolbar (), it will be replaced by other controls. Why?  41      #  Toolbar = wx. toolbar (Self)  42 Toolbar = Self. createmedilbar ()  43 Tsize = (24, 24 )  44 New_bmp = Wx. artprovider. getbitmap (wx. art_new, wx. art_toolbar, tsize)  45 Toolbar. addsimpletool (-1, new_bmp, "  Long help for 'new'  "  )  46  Toolbar. Realize ()  47       48       #  Add Status Bar  49 Statusbar = Self. createstatusbar ()  50   51       Def  Onfileopen (self, event ):  52       #  Create standard file dialog box  53 Dialog = wx. filedialog (self, " Open file...  " , OS. getcwd (), style = wx. Open, wildcard = "  *. Py  "  )  54       #  There is a concept: Modal Dialog Box and non-modal dialog box. The main difference is that the modal dialog box will block the response of other events,  55       #  Other operations can be performed when the non-modal dialog box is displayed. The modal dialog box is displayed. The return values include wx. id_ OK and wx. id_canel;  56       If Dialog. showmodal () = Wx. id_ OK: 57 Self. filename = Dialog. getpath ()  58   Self. onfileread ()  59           #  In topwindow, update the title as the file name.  60   Self. settitle (self. filename)  61       #  In the destroy dialog box, release the resource.  62   Dialog. Destroy ()  63  64       Def  Onfileread (Self ):  65       If  Self. filename:  66           Try  :  67 FD = open (self. filename, '  R  '  )  68 Line = FD. Read () 69           #  This is just to show the file content on the terminal. It can be displayed in the multi-line text control. This is the next step.  70           Print  Line  71   FD. Close ()  72           Except  :  73 Wx. MessageBox ( "  % S is not a match file.  " % Self. filename, " Oops!  " , Style = wx. OK | Wx. icon_exclamation)  74   75   If   _ Name __ = "  _ Main __  "  :  76 APP = Wx. pysimpleapp ()  77 Frame = Guimainframe () 78   Frame. Show ()  79 App. mainloop ()