forked from openlp/openlp
136 lines
5.0 KiB
Python
136 lines
5.0 KiB
Python
# -*- coding: utf-8 -*-
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# vim: autoindent shiftwidth=4 expandtab textwidth=80 tabstop=4 softtabstop=4
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###############################################################################
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# OpenLP - Open Source Lyrics Projection #
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# --------------------------------------------------------------------------- #
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# Copyright (c) 2008-2011 Raoul Snyman #
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# Portions copyright (c) 2008-2011 Tim Bentley, Jonathan Corwin, Michael #
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# Gorven, Scott Guerrieri, Meinert Jordan, Armin Köhler, Andreas Preikschat, #
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# Christian Richter, Philip Ridout, Maikel Stuivenberg, Martin Thompson, Jon #
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# Tibble, Carsten Tinggaard, Frode Woldsund #
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# --------------------------------------------------------------------------- #
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# This program is free software; you can redistribute it and/or modify it #
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# under the terms of the GNU General Public License as published by the Free #
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# Software Foundation; version 2 of the License. #
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# #
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# This program is distributed in the hope that it will be useful, but WITHOUT #
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or #
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for #
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# more details. #
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# #
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# You should have received a copy of the GNU General Public License along #
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# with this program; if not, write to the Free Software Foundation, Inc., 59 #
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# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
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###############################################################################
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"""
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The :mod:`screen` module provides management functionality for a machines'
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displays.
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"""
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import logging
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import copy
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log = logging.getLogger(__name__)
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class ScreenList(object):
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"""
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Wrapper to handle the parameters of the display screen
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"""
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log.info(u'Screen loaded')
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def __init__(self):
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self.preview = None
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self.current = None
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self.override = None
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self.screen_list = []
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self.display_count = 0
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# actual display number
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self.current_display = 0
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# save config display number
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self.monitor_number = 0
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def add_screen(self, screen):
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"""
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Add a screen to the list of known screens.
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``screen``
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A dict with the screen properties::
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{
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u'primary': True,
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u'number': 0,
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u'size': PyQt4.QtCore.QRect(0, 0, 1024, 768)
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}
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"""
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print u'add screen: %s' % screen
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if screen[u'primary']:
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self.current = screen
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self.screen_list.append(screen)
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self.display_count += 1
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def remove_screen(self, number):
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"""
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Remove a screen from the list of known screens.
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``number``
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The screen number (int).
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"""
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print u'remove screen %s' % number
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for screen in self.screen_list:
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if screen[u'number'] == number:
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self.screen_list.remove(screen)
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self.display_count -= 1
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break
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def screen_exists(self, number):
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"""
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Confirms a screen is known.
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``number``
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The screen number (int).
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"""
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for screen in self.screen_list:
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if screen[u'number'] == number:
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print u'screen %s exists' % number
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return True
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print u'screen %s does not exist' % number
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return False
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def set_current_display(self, number):
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"""
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Set up the current screen dimensions.
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``number``
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The screen number (int).
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"""
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log.debug(u'set_current_display %s', number)
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if number + 1 > self.display_count:
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self.current = self.screen_list[0]
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self.override = copy.deepcopy(self.current)
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self.current_display = 0
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else:
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self.current = self.screen_list[number]
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self.override = copy.deepcopy(self.current)
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self.preview = copy.deepcopy(self.current)
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self.current_display = number
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if self.display_count == 1:
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self.preview = self.screen_list[0]
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def set_override_display(self):
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"""
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Replace the current size with the override values, as the user wants to
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have their own screen attributes.
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"""
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log.debug(u'set_override_display')
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self.current = copy.deepcopy(self.override)
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self.preview = copy.deepcopy(self.current)
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def reset_current_display(self):
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"""
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Replace the current values with the correct values, as the user wants to
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use the correct screen attributes.
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"""
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log.debug(u'reset_current_display')
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self.set_current_display(self.current_display)
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