Tk quick start

This is the Tk spin box example included in AVC distribution. It comes into two versions. The first has the GUI generated from a Visual Tcl description. The second has the GUI generated directly by program instructions. For full details see the "Tk examples" chapter of the user manual.

Source code: Visual Tcl version (file tk_spinbox.py, needs also tk_spinbox.tcl)

01: #!/usr/bin/python
02: # .+
03: #
04: # .identifier : $Id:$
05: # .context    : Application View Controller
06: # .title      : A spin control replicated into a text label (Tk)
07: # .kind       : python source
08: # .author     : Fabrizio Pollastri
09: # .site       : Revello - Italy
10: # .creation   : 30-May-2007
11: # .copyright  : (c) 2007 Fabrizio Pollastri
12: # .license    : GNU General Public License (see below)
13: #
14: # This file is part of "AVC, Application View Controller".
15: #
16: # AVC is free software; you can redistribute it and/or modify
17: # it under the terms of the GNU General Public License as published by
18: # the Free Software Foundation; either version 3 of the License, or
19: # (at your option) any later version.
20: #
21: # AVC is distributed in the hope that it will be useful,
22: # but WITHOUT ANY WARRANTY; without even the implied warranty of
23: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
24: # GNU General Public License for more details.
25: #
26: # You should have received a copy of the GNU General Public License
27: # along with this program.  If not, see <http://www.gnu.org/licenses/>.
28: #
29: # .-
30:
31:
32: from Tkinter import *                   # Tk interface
33:
34: from avc import *                       # AVC
35:
36: TCL_FILE = 'tk_spinbox.tcl'             # GUI description as tcl script
37:
38:
39: class Example(AVC):
40:   """
41:   A spin box whose value is replicated into a label
42:   """
43:
44:   def __init__(self):
45:
46:
47:
48:     # create GUI
49:     self.root = Tk()
50:     self.root.eval('set argc {}; set argv {}; proc ::main {argc argv} {};')
51:     self.root.tk.evalfile(TCL_FILE)
52:
53:     # terminate program at toplevel window destroy: connect toplevel
54:     # destroy signal to termination handler.
55:     self.root.bind_class('Toplevel','<Destroy>',lambda event: self.root.quit())
56:
57:     # the variable holding the spin control value
58:     self.spin_value = 0
59:
60:
61: #### MAIN
62:
63: example = Example()                     # instantiate the application
64: example.avc_init()                      # connect widgets with variables
65: mainloop()                              # run Tk event loop until quit
66:
67: #### END
68: 

Source code: programmatic version (file tk_spinbox_progui.py)

!-- Generator: GNU source-highlight 3.1.6 by Lorenzo Bettini http://www.lorenzobettini.it http://www.gnu.org/software/src-highlite -->

01: #!/usr/bin/python
02: # .+
03: #
04: # .identifier : $Id:$
05: # .context    : Application View Controller
06: # .title      : A spin control replicated into a text label (Tk)
07: # .kind       : python source
08: # .author     : Fabrizio Pollastri
09: # .site       : Revello - Italy
10: # .creation   : 1-Jun-2007
11: # .copyright  : (c) 2007 Fabrizio Pollastri
12: # .license    : GNU General Public License (see below)
13: #
14: # This file is part of "AVC, Application View Controller".
15: #
16: # AVC is free software; you can redistribute it and/or modify
17: # it under the terms of the GNU General Public License as published by
18: # the Free Software Foundation; either version 3 of the License, or
19: # (at your option) any later version.
20: #
21: # AVC is distributed in the hope that it will be useful,
22: # but WITHOUT ANY WARRANTY; without even the implied warranty of
23: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
24: # GNU General Public License for more details.
25: #
26: # You should have received a copy of the GNU General Public License
27: # along with this program.  If not, see <http://www.gnu.org/licenses/>.
28: #
29: # .-
30:
31:
32: from Tkinter import *                   # Tk interface
33:
34: from avc import *                       # AVC for Tk
35:
36:
37: class Example(AVC):
38:   """
39:   A spin box whose value is replicated into a label
40:   """
41:
42:   def __init__(self):
43:
44:     ## create GUI
45:
46:     # main window
47:     self.root = Tk()
48:     self.root.title('AVC Tk spin box example')
49:     self.frame = Frame(self.root,name='frame')
50:     self.frame.pack()
51:
52:     # label replicating the spin box value
53:     self.label = Label(self.frame,name='spin_value__label',width=16,height=3)
54:     self.label.pack(side=LEFT)
55:
56:     # spin box
57:     self.spinbox = Spinbox(self.frame,name='spin_value__spinbox',
58:       increment=1.0,to=100)
59:     self.spinbox.pack(side=RIGHT)
60:
61:
62:     # the variable holding the spin control value
63:     self.spin_value = 0
64:
65:
66: #### MAIN
67:
68: example = Example()                     # instantiate the application
69: example.avc_init()                      # connect widgets with variables
70: mainloop()                              # run Tk event loop until quit
71:
72: #### END
73: