openlp/openlp.pyw

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# vim: autoindent shiftwidth=4 expandtab textwidth=80 tabstop=4 softtabstop=4
###############################################################################
# OpenLP - Open Source Lyrics Projection #
# --------------------------------------------------------------------------- #
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# Copyright (c) 2008-2011 Raoul Snyman #
# Portions copyright (c) 2008-2011 Tim Bentley, Jonathan Corwin, Michael #
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# Gorven, Scott Guerrieri, Matthias Hub, Meinert Jordan, Armin Köhler, #
# Andreas Preikschat, Mattias Põldaru, Christian Richter, Philip Ridout, #
# Maikel Stuivenberg, Martin Thompson, Jon Tibble, Frode Woldsund #
# --------------------------------------------------------------------------- #
# 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 os
import sys
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import logging
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# Import uuid now, to avoid the rare bug described in the support system:
# http://support.openlp.org/issues/102
# If https://bugs.gentoo.org/show_bug.cgi?id=317557 is fixed, the import can be
# removed.
import uuid
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from optparse import OptionParser
from traceback import format_exception
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from PyQt4 import QtCore, QtGui
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from openlp.core.lib import Receiver, check_directory_exists
from openlp.core.lib.ui import UiStrings
from openlp.core.resources import qInitResources
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from openlp.core.ui.mainwindow import MainWindow
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from openlp.core.ui.firsttimelanguageform import FirstTimeLanguageForm
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from openlp.core.ui.firsttimeform import FirstTimeForm
from openlp.core.ui.exceptionform import ExceptionForm
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from openlp.core.ui import SplashScreen, ScreenList
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from openlp.core.utils import AppLocation, LanguageManager, VersionThread, \
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get_application_version, DelayStartThread
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log = logging.getLogger()
application_stylesheet = u"""
QMainWindow::separator
{
border: none;
}
QDockWidget::title
{
border: 1px solid palette(dark);
padding-left: 5px;
padding-top: 2px;
margin: 1px 0;
}
QToolBar
{
border: none;
margin: 0;
padding: 0;
}
"""
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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.
"""
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def exec_(self):
"""
Override exec method to allow the shared memory to be released on exit
"""
QtGui.QApplication.exec_()
self.sharedMemory.detach()
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def run(self, args):
"""
Run the OpenLP application.
"""
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# On Windows, the args passed into the constructor are
# ignored. Not very handy, so set the ones we want to use.
self.args = args
# provide a listener for widgets to reqest a screen update.
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'openlp_process_events'), self.processEvents)
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QtCore.QObject.connect(Receiver.get_receiver(),
QtCore.SIGNAL(u'cursor_busy'), self.setBusyCursor)
QtCore.QObject.connect(Receiver.get_receiver(),
QtCore.SIGNAL(u'cursor_normal'), self.setNormalCursor)
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# Decide how many screens we have and their size
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screens = ScreenList(self.desktop())
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# First time checks in settings
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has_run_wizard = QtCore.QSettings().value(
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u'general/has run wizard', QtCore.QVariant(False)).toBool()
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if not has_run_wizard:
if FirstTimeForm(screens).exec_() == QtGui.QDialog.Accepted:
QtCore.QSettings().setValue(u'general/has run wizard',
QtCore.QVariant(True))
if os.name == u'nt':
self.setStyleSheet(application_stylesheet)
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show_splash = QtCore.QSettings().value(
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u'general/show splash', QtCore.QVariant(True)).toBool()
if show_splash:
self.splash = SplashScreen()
self.splash.show()
# make sure Qt really display the splash screen
self.processEvents()
# start the main app window
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self.mainWindow = MainWindow(self.clipboard(), self.args)
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self.mainWindow.show()
if show_splash:
# now kill the splashscreen
self.splash.finish(self.mainWindow)
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log.debug(u'Splashscreen closed')
self.mainWindow.repaint()
self.processEvents()
if not has_run_wizard:
self.mainWindow.firstTime()
update_check = QtCore.QSettings().value(
u'general/update check', QtCore.QVariant(True)).toBool()
if update_check:
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VersionThread(self.mainWindow).start()
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DelayStartThread(self.mainWindow).start()
return self.exec_()
def isAlreadyRunning(self):
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"""
Look to see if OpenLP is already running and ask if a 2nd copy
is to be started.
"""
self.sharedMemory = QtCore.QSharedMemory('OpenLP')
if self.sharedMemory.attach():
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status = QtGui.QMessageBox.critical(None,
UiStrings().Error, UiStrings().OpenLPStart,
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QtGui.QMessageBox.StandardButtons(
QtGui.QMessageBox.Yes | QtGui.QMessageBox.No))
if status == QtGui.QMessageBox.No:
return True
return False
else:
self.sharedMemory.create(1)
return False
def hookException(self, exctype, value, traceback):
if not hasattr(self, u'mainWindow'):
log.exception(''.join(format_exception(exctype, value, traceback)))
return
if not hasattr(self, u'exceptionForm'):
self.exceptionForm = ExceptionForm(self.mainWindow)
self.exceptionForm.exceptionTextEdit.setPlainText(
''.join(format_exception(exctype, value, traceback)))
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self.setNormalCursor()
self.exceptionForm.exec_()
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def setBusyCursor(self):
"""
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Sets the Busy Cursor for the Application
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"""
self.setOverrideCursor(QtCore.Qt.BusyCursor)
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self.processEvents()
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def setNormalCursor(self):
"""
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Sets the Normal Cursor for the Application
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"""
self.restoreOverrideCursor()
def main():
"""
The main function which parses command line options and then runs
the PyQt4 Application.
"""
# Set up command line options.
usage = 'Usage: %prog [options] [qt-options]'
parser = OptionParser(usage=usage)
parser.add_option('-e', '--no-error-form', dest='no_error_form',
action='store_true', help='Disable the error notification form.')
parser.add_option('-l', '--log-level', dest='loglevel',
default='warning', metavar='LEVEL', help='Set logging to LEVEL '
'level. Valid values are "debug", "info", "warning".')
parser.add_option('-p', '--portable', dest='portable',
action='store_true', help='Specify if this should be run as a '
'portable app, off a USB flash drive (not implemented).')
parser.add_option('-d', '--dev-version', dest='dev_version',
action='store_true', help='Ignore the version file and pull the '
'version directly from Bazaar')
parser.add_option('-s', '--style', dest='style',
help='Set the Qt4 style (passed directly to Qt4).')
# Set up logging
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log_path = AppLocation.get_directory(AppLocation.CacheDir)
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check_directory_exists(log_path)
filename = os.path.join(log_path, u'openlp.log')
logfile = logging.FileHandler(filename, u'w')
logfile.setFormatter(logging.Formatter(
u'%(asctime)s %(name)-55s %(levelname)-8s %(message)s'))
log.addHandler(logfile)
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logging.addLevelName(15, u'Timer')
# Parse command line options and deal with them.
(options, args) = parser.parse_args()
qt_args = []
if options.loglevel.lower() in ['d', 'debug']:
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log.setLevel(logging.DEBUG)
print 'Logging to:', filename
elif options.loglevel.lower() in ['w', 'warning']:
log.setLevel(logging.WARNING)
else:
log.setLevel(logging.INFO)
if options.style:
qt_args.extend(['-style', options.style])
# Throw the rest of the arguments at Qt, just in case.
qt_args.extend(args)
# Initialise the resources
qInitResources()
# Now create and actually run the application.
app = OpenLP(qt_args)
# Instance check
if app.isAlreadyRunning():
sys.exit()
app.setOrganizationName(u'OpenLP')
app.setOrganizationDomain(u'openlp.org')
app.setApplicationName(u'OpenLP')
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app.setApplicationVersion(get_application_version()[u'version'])
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# First time checks in settings
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if not QtCore.QSettings().value(u'general/has run wizard',
QtCore.QVariant(False)).toBool():
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if not FirstTimeLanguageForm().exec_():
# if cancel then stop processing
sys.exit()
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if sys.platform == u'darwin':
OpenLP.addLibraryPath(QtGui.QApplication.applicationDirPath()
+ "/qt4_plugins")
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# i18n Set Language
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language = LanguageManager.get_language()
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app_translator, default_translator = \
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LanguageManager.get_translator(language)
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if not app_translator.isEmpty():
app.installTranslator(app_translator)
if not default_translator.isEmpty():
app.installTranslator(default_translator)
else:
log.debug(u'Could not find default_translator.')
if not options.no_error_form:
sys.excepthook = app.hookException
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sys.exit(app.run(qt_args))
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if __name__ == u'__main__':
"""
Instantiate and run the application.
"""
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main()