164 lines
5.0 KiB
Python
164 lines
5.0 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 gramps.gen.user
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from gui.utils import ProgressMeter
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from gui.dialog import (WarningDialog, ErrorDialog, DBErrorDialog,
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InfoDialog)
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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(gramps.gen.user.User):
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"""
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This class provides a means to interact with the user via GTK.
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It implements the interface in gramps.gen.user.User()
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"""
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def __init__(self, callback=None, error=None):
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self.progress = None
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self.callback_function = callback
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self.error_function = error
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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.
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a value of 0 indicates that the ending is unknown and the
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meter should just show activity.
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@type steps: int
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@returns: none
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"""
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self.progress = ProgressMeter(title)
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if steps > 0:
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self.progress.set_pass(message, steps, ProgressMeter.MODE_FRACTION)
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else:
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self.progress.set_pass(message, mode=ProgressMeter.MODE_ACTIVITY)
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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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if self.progress:
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self.progress.step()
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def callback(self, percentage, text=None):
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"""
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Display the precentage.
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"""
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if self.callback_function:
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if text:
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self.callback_function(percentage, text)
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else:
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self.callback_function(percentage)
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else:
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if text is None:
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sys.stdout.write("\r%02d%%" % percentage)
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else:
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sys.stdout.write("\r%02d%% %s" % (percentage, text))
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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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if self.progress:
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self.progress.close()
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self.progress = None
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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".
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The user will 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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WarningDialog(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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if self.error_function:
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self.error_function(title, error)
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else:
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ErrorDialog(title, error)
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def notify_db_error(self, error):
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"""
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Notify the user of a DB error.
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@param error: the DB error message
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@type error: str
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@returns: none
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"""
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DBErrorDialog(error)
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def info(self, msg1, infotext, parent=None, monospaced=False):
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"""
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Calls the GUI InfoDialog
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"""
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InfoDialog(msg1, infotext, parent, monospaced)
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