1 # -*-mode: python; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-

     2 #

     3 #       $Id: DirTree.py 36560 2004-07-18 06:16:08Z tim_one $

     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)