openlp/openlp.pyw

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# vim: autoindent shiftwidth=4 expandtab textwidth=80 tabstop=4 softtabstop=4

###############################################################################
# OpenLP - Open Source Lyrics Projection                                      #
# --------------------------------------------------------------------------- #
# Copyright (c) 2008-2009 Raoul Snyman                                        #
# Portions copyright (c) 2008-2009 Martin Thompson, Tim Bentley, Carsten      #
# Tinggaard, Jon Tibble, Jonathan Corwin, Maikel Stuivenberg, Scott Guerrieri #
# --------------------------------------------------------------------------- #
# This program 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; version 2 of the License.                              #
#                                                                             #
# This program 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, write to the Free Software Foundation, Inc., 59  #
# Temple Place, Suite 330, Boston, MA 02111-1307 USA                          #
###############################################################################

import sys
import logging

from logging.handlers import RotatingFileHandler
from optparse import OptionParser
from PyQt4 import QtCore, QtGui

from openlp.core.lib import Receiver, str_to_bool
from openlp.core.resources import qInitResources
from openlp.core.ui import MainWindow, SplashScreen
from openlp.core.utils import ConfigHelper

log = logging.getLogger()

class OpenLP(QtGui.QApplication):
    """
    The core application class. This class inherits from Qt's QApplication
    class in order to provide the core of the application.
    """
    global log
    log.info(u'OpenLP Application Loaded')

    def run(self):
        """
        Run the OpenLP application.
        """
        #set the default string encoding
        try:
            sys.setappdefaultencoding(u'utf-8')
        except:
            pass
        #provide a listener for widgets to reqest a screen update.
        QtCore.QObject.connect(Receiver.get_receiver(),
            QtCore.SIGNAL(u'process_events'), self.processEvents)
        self.setApplicationName(u'OpenLP')
        self.setApplicationVersion(u'1.9.0')
        show_splash = str_to_bool(ConfigHelper.get_registry().get_value(
            u'general', u'show splash', True))
        if show_splash:
            self.splash = SplashScreen(self.applicationVersion())
            self.splash.show()
        # make sure Qt really display the splash screen
        self.processEvents()
        screens = []
        # Decide how many screens we have and their size
        for screen in xrange(0, self.desktop().numScreens()):
            screens.append({u'number': screen,
                            u'size': self.desktop().availableGeometry(screen),
                            u'primary': (self.desktop().primaryScreen() == screen)})
            log.info(u'Screen %d found with resolution %s',
                screen, self.desktop().availableGeometry(screen))
        # start the main app window
        self.mainWindow = MainWindow(screens)
        self.mainWindow.show()
        if show_splash:
            # now kill the splashscreen
            self.splash.finish(self.mainWindow)
        return self.exec_()

def main():
    """
    The main function which parses command line options and then runs
    the PyQt4 Application.
    """
    # Set up command line options.
    usage = u'Usage: %prog [options] [qt-options]'
    parser = OptionParser(usage=usage)
    parser.add_option("-d", "--debug", dest="debug",
                      action="store_true", help="set logging to DEBUG level")
    # Set up logging
    filename = u'openlp.log'
    logfile = RotatingFileHandler(filename, maxBytes=200000, backupCount=5)
    logfile.setFormatter(logging.Formatter(
        u'%(asctime)s %(name)-15s %(levelname)-8s %(message)s'))
    log.addHandler(logfile)
    # Parse command line options and deal with them.
    (options, args) = parser.parse_args()
    if options.debug is not None:
        log.setLevel(logging.DEBUG)
    else:
        log.setLevel(logging.INFO)
    # Initialise the resources
    qInitResources()
    # Now create and actually run the application.
    app = OpenLP(sys.argv)
    sys.exit(app.run())

if __name__ == u'__main__':
    """
    Instantiate and run the application.
    """
    main()