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#!/usr/bin/python
# .+
#
# .identifier : $Id: example2.py,v 1.1 2006/11/20 17:31:56 fabrizio Exp $
# .context : Application View Controller
# .title : A table of all supported widget/control type conbinations (Tk)
# .kind : python source
# .author : Fabrizio Pollastri
# .site : Revello - Italy
# .creation : 19-Nov-2006
# .copyright : (c) 2006 Fabrizio Pollastri.
# .license : GNU General Public License (see below)
#
# This file is part of "AVC, Application View Controller".
#
# AVC is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# AVC is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# .-
from Tkinter import * # Tk interface
from avc import * # AVC
INCREMENTER_PERIOD = 0.333 # seconds
class Example(AVC):
"""
A table of all supported widget/control type conbinations
"""
def __init__(self):
## create GUI
self.root = Tk()
self.root.title('AVC Tk showcase example')
# row 0: titles
Label(self.root,text='Control Type').grid(row=0)
Label(self.root,text='Widgets').grid(row=0,column=1,columnspan=3)
Label(self.root,text='Control Value').grid(row=0,column=4)
# row 1: button/boolean variable
Label(self.root,text='boolean').grid(row=1,rowspan=2)
button1 = Button(self.root,text='button',name='boolean1__button1')
button1.grid(row=1,column=1,columnspan=3)
label1 = Label(self.root,text='boolean1',name='boolean1__label1')
label1.grid(row=1,column=4)
# row 2: checkbutton/boolean variable
button2 = Checkbutton(self.root,text='button',name='boolean2__button2')
button2.grid(row=2,column=1,columnspan=3)
label2 = Label(self.root,text='boolean2',name='boolean2__label2')
label2.grid(row=2,column=4)
# row 3: triple radio button/index variable (integer)
Label(self.root,text='index').grid(row=3)
radiobutton0 = Radiobutton(self.root,text='radiobutton0',value=0,
name='radio__radiobutton0')
radiobutton1 = Radiobutton(self.root,text='radiobutton1',value=1,
name='radio__radiobutton1')
radiobutton2 = Radiobutton(self.root,text='radiobutton2',value=2,
name='radio__radiobutton2')
radiobutton0.grid(row=3,column=1)
radiobutton1.grid(row=3,column=2)
radiobutton2.grid(row=3,column=3)
label3 = Label(self.root,text='index',name='radio__label3')
label3.grid(row=3,column=4)
# row 4: spin button/text entry/integer variable
Label(self.root,text='integer').grid(row=4)
spinbox1 = Spinbox(self.root,name='integer__spinbox1',increment=1,
to=100)
spinbox1.grid(row=4,column=1)
entry1 = Entry(self.root,textvariable=StringVar(),name='integer__entry1')
entry1.grid(row=4,column=2,columnspan=2)
label4 = Label(self.root,text='integer',name='integer__label4')
label4.grid(row=4,column=4)
# row 5: spin button/text entry/float variable
Label(self.root,text='float').grid(row=5)
spinbox2 = Spinbox(self.root,name='float__spinbox2',increment=1.0,
to=100.0)
spinbox2.grid(row=5,column=1)
entry2 = Entry(self.root,textvariable=StringVar(),name='float__entry2')
entry2.grid(row=5,column=2,columnspan=2)
label5 = Label(self.root,text='float',name='float__label5')
label5.grid(row=5,column=4)
# row 6: entry/string variable
Label(self.root,text='string').grid(row=6)
entry3 = Entry(self.root,textvariable=StringVar(),name='string__entry3')
entry3.grid(row=6,column=1,columnspan=3)
label6 = Label(self.root,text='string',name='string__label6')
label6.grid(row=6,column=4)
# the control variables
self.boolean1 = False
self.boolean2 = False
self.radio = 0
self.integer = 0
self.float = 0.0
self.string = ''
# start variables incrementer
increment = self.incrementer()
self.timer_function = increment.next
self.root.after(int(INCREMENTER_PERIOD * 1000.0),self.timer_wrap)
def timer_wrap(self):
"Call given function, reschedule it after return"
self.timer_function()
self.root.after(int(INCREMENTER_PERIOD * 1000.0),self.timer_wrap)
def incrementer(self):
"""
Booleans are toggled, radio button index is rotated from first to last,
integer is incremented by 1, float by 0.5, string is appended a char
until maxlen when string is cleared. Return True to keep timer alive.
"""
while True:
self.boolean1 = not self.boolean1
yield True
self.boolean2 = not self.boolean2
yield True
if self.radio == 2:
self.radio = 0
else:
self.radio += 1
yield True
self.integer += 1
yield True
self.float += 0.5
yield True
if len(self.string) >= 20:
self.string = 'A'
else:
self.string += 'A'
yield True
#### MAIN
example = Example() # instantiate the application
example.avc_init() # connect widgets with variables
mainloop() # run Tk event loop until quit
#### END
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