# -*- coding: utf-8 -*-
# vim: autoindent shiftwidth=4 expandtab textwidth=120 tabstop=4 softtabstop=4
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# OpenLP - Open Source Lyrics Projection #
# --------------------------------------------------------------------------- #
# Copyright (c) 2008-2017 OpenLP Developers #
# --------------------------------------------------------------------------- #
# 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 #
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# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
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"""
The :mod:`openlp.plugins.presentations.presentationplugin` module provides the ability for OpenLP to display
presentations from a variety of document formats.
"""
import os
import logging
from PyQt5 import QtCore
from openlp.core.common import AppLocation, extension_loader, translate
from openlp.core.lib import Plugin, StringContent, build_icon
from openlp.plugins.presentations.lib import PresentationController, PresentationMediaItem, PresentationTab
log = logging.getLogger(__name__)
__default_settings__ = {'presentations/override app': QtCore.Qt.Unchecked,
'presentations/enable_pdf_program': QtCore.Qt.Unchecked,
'presentations/pdf_program': '',
'presentations/Impress': QtCore.Qt.Checked,
'presentations/Powerpoint': QtCore.Qt.Checked,
'presentations/Powerpoint Viewer': QtCore.Qt.Checked,
'presentations/Pdf': QtCore.Qt.Checked,
'presentations/presentations files': [],
'presentations/thumbnail_scheme': '',
'presentations/powerpoint slide click advance': QtCore.Qt.Unchecked,
'presentations/powerpoint control window': QtCore.Qt.Unchecked
}
[docs]class PresentationPlugin(Plugin):
"""
This plugin allowed a Presentation to be opened, controlled and displayed on the output display. The plugin controls
third party applications such as OpenOffice.org Impress, Microsoft PowerPoint and the PowerPoint viewer.
"""
log = logging.getLogger('PresentationPlugin')
def __init__(self):
"""
PluginPresentation constructor.
"""
log.debug('Initialised')
self.controllers = {}
Plugin.__init__(self, 'presentations', __default_settings__, __default_settings__)
self.weight = -8
self.icon_path = ':/plugins/plugin_presentations.png'
self.icon = build_icon(self.icon_path)
[docs] def create_settings_tab(self, parent):
"""
Create the settings Tab.
:param parent: parent UI Element
"""
visible_name = self.get_string(StringContent.VisibleName)
self.settings_tab = PresentationTab(parent, self.name, visible_name['title'], self.controllers, self.icon_path)
[docs] def initialise(self):
"""
Initialise the plugin. Determine which controllers are enabled are start their processes.
"""
log.info('Presentations Initialising')
super(PresentationPlugin, self).initialise()
for controller in self.controllers:
if self.controllers[controller].enabled():
try:
self.controllers[controller].start_process()
except Exception:
log.warning('Failed to start controller process')
self.controllers[controller].available = False
self.media_item.build_file_mask_string()
[docs] def finalise(self):
"""
Finalise the plugin. Ask all the enabled presentation applications to close down their applications and release
resources.
"""
log.info('Plugin Finalise')
# Ask each controller to tidy up.
for key in self.controllers:
controller = self.controllers[key]
if controller.enabled():
controller.kill()
super(PresentationPlugin, self).finalise()
[docs] def register_controllers(self, controller):
"""
Register each presentation controller (Impress, PPT etc) and store for later use.
:param controller: controller to register
"""
self.controllers[controller.name] = controller
[docs] def check_pre_conditions(self):
"""
Check to see if we have any presentation software available. If not do not install the plugin.
"""
log.debug('check_pre_conditions')
controller_dir = os.path.join('openlp', 'plugins', 'presentations', 'lib')
glob_pattern = os.path.join(controller_dir, '*controller.py')
extension_loader(glob_pattern, ['presentationcontroller.py'])
controller_classes = PresentationController.__subclasses__()
for controller_class in controller_classes:
controller = controller_class(self)
self.register_controllers(controller)
return bool(self.controllers)
[docs] @staticmethod
def about():
"""
Return information about this plugin.
"""
about_text = translate('PresentationPlugin', '<strong>Presentation '
'Plugin</strong><br />The presentation plugin provides the '
'ability to show presentations using a number of different '
'programs. The choice of available presentation programs is '
'available to the user in a drop down box.')
return about_text
[docs] def set_plugin_text_strings(self):
"""
Called to define all translatable texts of the plugin.
"""
# Name PluginList
self.text_strings[StringContent.Name] = {
'singular': translate('PresentationPlugin', 'Presentation', 'name singular'),
'plural': translate('PresentationPlugin', 'Presentations', 'name plural')
}
# Name for MediaDockManager, SettingsManager
self.text_strings[StringContent.VisibleName] = {
'title': translate('PresentationPlugin', 'Presentations', 'container title')
}
# Middle Header Bar
tooltips = {
'load': translate('PresentationPlugin', 'Load a new presentation.'),
'import': '',
'new': '',
'edit': '',
'delete': translate('PresentationPlugin', 'Delete the selected presentation.'),
'preview': translate('PresentationPlugin', 'Preview the selected presentation.'),
'live': translate('PresentationPlugin', 'Send the selected presentation live.'),
'service': translate('PresentationPlugin', 'Add the selected presentation to the service.')
}
self.set_plugin_ui_text_strings(tooltips)