139 lines
4.1 KiB
Python
139 lines
4.1 KiB
Python
#
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# Gramps - a GTK+/GNOME based genealogy program
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#
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# Copyright (C) 2010 Brian G. Matherly
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# $Id$
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#
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"""
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The User class provides basic interaction with the user.
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"""
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#------------------------------------------------------------------------
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#
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# Python Modules
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#
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#------------------------------------------------------------------------
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import sys
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#------------------------------------------------------------------------
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#
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# Gramps Modules
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#
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#------------------------------------------------------------------------
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import gen.user
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#------------------------------------------------------------------------
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#
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# Private Constants
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#
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#------------------------------------------------------------------------
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_SPINNER = ['|', '/', '-', '\\']
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#-------------------------------------------------------------------------
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#
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# User class
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#
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#-------------------------------------------------------------------------
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class User(gen.user.User):
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"""
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This class provides a means to interact with the user via CLI.
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It implements the interface in gen.user.User()
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"""
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def __init__(self):
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self.steps = 0;
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self.current_step = 0;
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def begin_progress(self, title, message, steps):
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"""
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Start showing a progress indicator to the user.
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@param title: the title of the progress meter
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@type title: str
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@param message: the message associated with the progress meter
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@type message: str
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@param steps: the total number of steps for the progress meter. a value
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of 0 indicates that the ending is unknown and the meter should just
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show activity.
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@type steps: int
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@returns: none
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"""
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print message
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self.steps = steps
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self.current_step = 0;
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if self.steps == 0:
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sys.stdout.write(_SPINNER[self.current_step])
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else:
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sys.stdout.write("00%")
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def step_progress(self):
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"""
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Advance the progress meter.
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"""
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self.current_step += 1
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if self.steps == 0:
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self.current_step %= 4
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sys.stdout.write("\r %s " % _SPINNER[self.current_step])
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else:
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percent = int((float(self.current_step) / self.steps) * 100)
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sys.stdout.write("\r%02d%%" % percent)
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def end_progress(self):
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"""
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Stop showing the progress indicator to the user.
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"""
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sys.stdout.write("\r100%\n")
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def prompt(self, title, question):
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"""
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Ask the user a question. The answer must be "yes" or "no". The user will
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be forced to answer the question before proceeding.
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@param title: the title of the question
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@type title: str
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@param question: the question
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@type question: str
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@returns: the user's answer to the question
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@rtype: bool
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"""
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return False
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def warn(self, title, warning):
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"""
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Warn the user.
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@param title: the title of the warning
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@type title: str
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@param warning: the warning
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@type warning: str
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@returns: none
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"""
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print "%s %s" % (title, warning)
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def notify_error(self, title, error):
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"""
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Notify the user of an error.
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@param title: the title of the error
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@type title: str
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@param error: the error message
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@type error: str
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@returns: none
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"""
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print "%s %s" % (title, warning)
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