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#! /usr/bin/env python
# -*- coding: utf-8 -*-
# simple_example.py --- Short and straightforward example using pythondialog
# Copyright (C) 2013 Florent Rougon
#
# This program is in the public domain.
from __future__ import unicode_literals
import sys, locale
from dialog import Dialog
# This is almost always a good thing to do at the beginning of your programs.
locale.setlocale(locale.LC_ALL, '')
# Initialize a dialog.Dialog instance
d = Dialog(dialog="dialog")
d.set_background_title("A Simple Example")
# *****************************************************************************
# * 'msgbox' example *
# *****************************************************************************
d.msgbox("""\
This is a very simple example of a program using pythondialog.
Contrary to what is done in demo.py, the Dialog exit code for the Escape key \
is not checked after every call, therefore it is not so easy to exit from \
this program as it is for the demo. The goal here is to show basic \
pythondialog usage in its simplest form.
With not too old versions of dialog, the size of dialog boxes is \
automatically computed when one passes width=0 and height=0 to the \
widget call. This is the method used here in most cases.""",
width=0, height=0, title="'msgbox' example")
# *****************************************************************************
# * 'yesno' example *
# *****************************************************************************
# The 'no_collapse=True' used in the following call tells dialog not to replace
# multiple contiguous spaces in the text string with a single space.
code = d.yesno("""\
The 'yesno' widget allows one to display a text with two buttons beneath, \
which by default are labelled "Yes" and "No".
The return value is not simply True or False: for consistency with \
dialog and the other widgets, the return code allows to distinguish \
between:
OK/Yes Dialog.OK (equal to the string "ok")
Cancel/No Dialog.CANCEL (equal to the string "cancel")
<Escape> Dialog.ESC when the Escape key is pressed
Help Dialog.HELP when help_button=True was passed and the
Help button is pressed (only for 'menu' in
pythondialog 2.x)
Extra Dialog.EXTRA when extra_button=True was passed and the
Extra button is pressed
The DIALOG_ERROR exit status of dialog has no equivalent in this list, \
because pythondialog translates it into an exception.""",
width=0, height=0, title="'yesno' example", no_collapse=True,
help_button=True)
if code == d.OK:
msg = "You chose the 'OK/Yes' button in the previous dialog."
elif code == d.CANCEL:
msg = "You chose the 'Cancel/No' button in the previous dialog."
elif code == d.ESC:
msg = "You pressed the Escape key in the previous dialog."
elif code == d.HELP:
msg = "You chose the 'Help' button in the previous dialog."
else:
msg = "Unexpected exit code from d.yesno(). Please report a bug."
d.msgbox(msg, width=50, height=7)
# *****************************************************************************
# * 'inputbox' example *
# *****************************************************************************
code, user_input = d.inputbox("""\
The 'inputbox' widget can be used to read input (as a string) from the user. \
You can test it now:""",
init="Initial contents",
width=0, height=0, title="'inputbox' example",
help_button=True, extra_button=True,
extra_label="Cool button")
if code == d.OK:
msg = "Your input in the previous dialog was '{0}'.".format(user_input)
elif code == d.CANCEL:
msg = "You chose the 'Cancel' button in the previous dialog."
elif code == d.ESC:
msg = "You pressed the Escape key in the previous dialog."
elif code == d.HELP:
msg = "You chose the 'Help' button with input '{0}' in the previous " \
"dialog.".format(user_input)
elif code == d.EXTRA:
msg = 'You chose the Extra button ("Cool button") with input \'{0}\' ' \
"in the previous dialog.".format(user_input)
else:
msg = "Unexpected exit code from d.inputbox(). Please report a bug."
d.msgbox("{0}\n\nThis little sample program is now finished. Bye bye!".format(
msg), width=0, height=0, title="Bye bye!")
sys.exit(0)
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