Demo/tix/samples/DirTree.py

   1 # -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
   2 #
   3 #       $Id$
   4 #
   5 # Tix Demostration Program
   6 #
   7 # This sample program is structured in such a way so that it can be
   8 # executed from the Tix demo program "tixwidgets.py":  it must have a
   9 # procedure called "RunSample". It should also have the "if" statment
  10 # at the end of this file so that it can be run as a standalone
  11 # program using tixwish.
  12
  13 # This file demonstrates the use of the tixDirTree widget -- you can
  14 # use it for the user to select a directory. For example, an installation
  15 # program can use the tixDirTree widget to ask the user to select the
  16 # installation directory for an application.
  17 #
  18
  19 import Tix, os, copy
  20 from Tkconstants import *
  21
  22 TCL_ALL_EVENTS          = 0
  23
  24 def RunSample (root):
  25     dirtree = DemoDirTree(root)
  26     dirtree.mainloop()
  27     dirtree.destroy()
  28
  29 class DemoDirTree:
  30     def __init__(self, w):
  31         self.root = w
  32         self.exit = -1
  33
  34         z = w.winfo_toplevel()
  35         z.wm_protocol("WM_DELETE_WINDOW", lambda self=self: self.quitcmd())
  36
  37         # Create the tixDirTree and the tixLabelEntry widgets on the on the top
  38         # of the dialog box
  39
  40         # bg = root.tk.eval('tix option get bg')
  41         # adding bg=bg crashes Windows pythonw tk8.3.3 Python 2.1.0
  42
  43         top = Tix.Frame( w, relief=RAISED, bd=1)
  44
  45         # Create the DirTree widget. By default it will show the current
  46         # directory
  47         #
  48         #
  49         top.dir = Tix.DirTree(top)
  50         top.dir.hlist['width'] = 40
  51
  52         # When the user presses the ".." button, the selected directory
  53         # is "transferred" into the entry widget
  54         #
  55         top.btn = Tix.Button(top, text = "  >>  ", pady = 0)
  56
  57         # We use a LabelEntry to hold the installation directory. The user
  58         # can choose from the DirTree widget, or he can type in the directory
  59         # manually
  60         #
  61         top.ent = Tix.LabelEntry(top, label="Installation Directory:",
  62                                   labelside = 'top',
  63                                   options = '''
  64                                   entry.width 40
  65                                   label.anchor w
  66                                   ''')
  67
  68         self.dlist_dir = copy.copy(os.curdir)
  69         top.ent.entry['textvariable'] = self.dlist_dir
  70         top.btn['command'] = lambda dir=top.dir, ent=top.ent, self=self: \
  71                              self.copy_name(dir,ent)
  72
  73         top.ent.entry.bind('<Return>', lambda self=self: self.okcmd () )
  74
  75         top.pack( expand='yes', fill='both', side=TOP)
  76         top.dir.pack( expand=1, fill=BOTH, padx=4, pady=4, side=LEFT)
  77         top.btn.pack( anchor='s', padx=4, pady=4, side=LEFT)
  78         top.ent.pack( expand=1, fill=X, anchor='s', padx=4, pady=4, side=LEFT)
  79
  80         # Use a ButtonBox to hold the buttons.
  81         #
  82         box = Tix.ButtonBox (w, orientation='horizontal')
  83         box.add ('ok', text='Ok', underline=0, width=6,
  84                      command = lambda self=self: self.okcmd () )
  85         box.add ('cancel', text='Cancel', underline=0, width=6,
  86                      command = lambda self=self: self.quitcmd () )
  87
  88         box.pack( anchor='s', fill='x', side=BOTTOM)
  89
  90     def copy_name (self, dir, ent):
  91         # This should work as it is the entry's textvariable
  92         self.dlist_dir = dir.cget('value')
  93         # but it isn't so I'll do it manually
  94         ent.entry.delete(0,'end')
  95         ent.entry.insert(0, self.dlist_dir)
  96
  97     def okcmd (self):
  98         # tixDemo:Status "You have selected the directory" + self.dlist_dir
  99         self.quitcmd()
 100
 101     def quitcmd (self):
 102         # tixDemo:Status "You have selected the directory" + self.dlist_dir
 103         self.exit = 0
 104
 105     def mainloop(self):
 106         while self.exit < 0:
 107             self.root.tk.dooneevent(TCL_ALL_EVENTS)
 108
 109     def destroy (self):
 110         self.root.destroy()
 111
 112 # This "if" statement makes it possible to run this script file inside or
 113 # outside of the main demo program "tixwidgets.py".
 114 #
 115 if __name__== '__main__' :
 116     root=Tix.Tk()
 117     RunSample(root)