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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 #
# Gorven, Scott Guerrieri, Meinert Jordan, Armin Köhler, Andreas Preikschat, #
# Christian Richter, Philip Ridout, Maikel Stuivenberg, Martin Thompson, Jon #
# Tibble, Carsten Tinggaard, 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
from optparse import OptionParser
from traceback import format_exception
from subprocess import Popen, PIPE
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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.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
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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log.info(u'OpenLP Application Loaded')
def _get_version(self):
"""
Load and store current Application Version
"""
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if u'--dev-version' in sys.argv or u'-d' in sys.argv:
# If we're running the dev version, let's use bzr to get the version
try:
# If bzrlib is availble, use it
from bzrlib.branch import Branch
b = Branch.open_containing('.')[0]
b.lock_read()
try:
# Get the branch's latest revision number.
revno = b.revno()
# Convert said revision number into a bzr revision id.
revision_id = b.dotted_revno_to_revision_id((revno,))
# Get a dict of tags, with the revision id as the key.
tags = b.tags.get_reverse_tag_dict()
# Check if the latest
if revision_id in tags:
full_version = u'%s' % tags[revision_id][0]
else:
full_version = '%s-bzr%s' % \
(sorted(b.tags.get_tag_dict().keys())[-1], revno)
finally:
b.unlock()
except:
# Otherwise run the command line bzr client
bzr = Popen((u'bzr', u'tags', u'--sort', u'time'), stdout=PIPE)
output, error = bzr.communicate()
code = bzr.wait()
if code != 0:
raise Exception(u'Error running bzr tags')
lines = output.splitlines()
if len(lines) == 0:
tag = u'0.0.0'
revision = u'0'
else:
tag, revision = lines[-1].split()
bzr = Popen((u'bzr', u'log', u'--line', u'-r', u'-1'),
stdout=PIPE)
output, error = bzr.communicate()
code = bzr.wait()
if code != 0:
raise Exception(u'Error running bzr log')
latest = output.split(u':')[0]
full_version = latest == revision and tag or \
u'%s-bzr%s' % (tag, latest)
else:
# We're not running the development version, let's use the file
filepath = AppLocation.get_directory(AppLocation.VersionDir)
filepath = os.path.join(filepath, u'.version')
fversion = None
try:
fversion = open(filepath, u'r')
full_version = unicode(fversion.read()).rstrip()
except IOError:
log.exception('Error in version file.')
full_version = u'0.0.0-bzr000'
finally:
if fversion:
fversion.close()
bits = full_version.split(u'-')
app_version = {
u'full': full_version,
u'version': bits[0],
u'build': bits[1] if len(bits) > 1 else None
}
if app_version[u'build']:
log.info(
u'Openlp version %s build %s',
app_version[u'version'],
app_version[u'build']
)
else:
log.info(u'Openlp version %s' % app_version[u'version'])
return app_version
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def run(self):
"""
Run the OpenLP application.
"""
app_version = self._get_version()
# 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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self.setOrganizationName(u'OpenLP')
self.setOrganizationDomain(u'openlp.org')
self.setApplicationName(u'OpenLP')
self.setApplicationVersion(app_version[u'version'])
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# Decide how many screens we have and their size
screens = ScreenList(self.desktop())
# 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
self.mainWindow = MainWindow(screens, app_version, self.clipboard())
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self.mainWindow.show()
if show_splash:
# now kill the splashscreen
self.splash.finish(self.mainWindow)
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:
VersionThread(self.mainWindow, app_version).start()
return self.exec_()
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)
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# Define the settings environment
settings = QtCore.QSettings(u'OpenLP', u'OpenLP')
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# First time checks in settings
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# Use explicit reference as not inside a QT environment yet
if not settings.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()
appTranslator = LanguageManager.get_translator(language)
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app.installTranslator(appTranslator)
if not options.no_error_form:
sys.excepthook = app.hookException
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sys.exit(app.run())
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if __name__ == u'__main__':
"""
Instantiate and run the application.
"""
main()