forked from openlp/openlp
704 lines
25 KiB
Python
704 lines
25 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) 2008-2010 Raoul Snyman #
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# Portions copyright (c) 2008-2010 Tim Bentley, Jonathan Corwin, Michael #
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# Gorven, Scott Guerrieri, Christian Richter, Maikel Stuivenberg, Martin #
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# Thompson, Jon Tibble, Carsten Tinggaard #
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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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import logging
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import os
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import time
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from PyQt4 import QtCore, QtGui, QtWebKit
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from PyQt4.phonon import Phonon
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from openlp.core.lib import Receiver, resize_image
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from openlp.core.ui import HideMode
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log = logging.getLogger(__name__)
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HTMLIMAGE = """<html>
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<body>
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<img src=\"file://%s\" alt\"Hello\">
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</body></html>
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"""
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#http://www.steveheffernan.com/html5-video-player/demo-video-player.html
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HTMLVIDEO = u"""<html>
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<script type="text/javascript" charset="utf-8">
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var video;
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var bodyLoaded = function(){
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video = document.getElementById("video");
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video.volume = 0;
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}
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</script>
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<body id=\"body\" onload=\"bodyLoaded();>\"
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<video id=\"video\" src=\"%s\"
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autoplay loop width=%s height=%s autobuffer=\"autobuffer\" preload >
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your browser does not support the video tag
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</video>
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</body></html>
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"""
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class DisplayManager(QtGui.QWidget):
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"""
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Wrapper class to hold the display widgets.
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I will provide API's in future to access the screens allow for
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extra displays to be added.
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RenderManager is poked in by MainWindow
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"""
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def __init__(self, screens):
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QtGui.QWidget.__init__(self)
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self.screens = screens
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self.videoDisplay = VideoDisplay(self, screens)
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self.audioPlayer = AudioPlayer(self)
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self.mainDisplay = MainDisplay(self, screens)
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'maindisplay_hide'), self.hideDisplay)
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'maindisplay_show'), self.showDisplay)
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'videodisplay_start'), self.onStartVideo)
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'videodisplay_stop'), self.onStopVideo)
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def setup(self):
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self.videoDisplay.setup()
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self.mainDisplay.setup()
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def hideDisplay(self, message):
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"""
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Hide the output displays
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"""
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self.videoDisplay.mediaHide(message)
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self.mainDisplay.hideDisplay(message)
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def showDisplay(self, message):
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"""
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Hide the output displays
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"""
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self.videoDisplay.mediaShow(message)
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self.mainDisplay.showDisplay(message)
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def addAlert(self, alertMessage, location):
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"""
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Handles the addition of an Alert Message to the Displays
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"""
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self.mainDisplay.addAlert(alertMessage, location)
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def displayImageWithText(self, frame):
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"""
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Handles the addition of a background Image to the displays
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"""
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self.mainDisplay.addImageWithText(frame)
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def displayImage(self, frame):
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"""
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Handles the addition of a background Image to the displays
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"""
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self.mainDisplay.displayImage(frame)
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def displayVideo(self, path):
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"""
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Handles the addition of a background Video to the displays
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"""
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self.mainDisplay.displayVideo(path)
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def onStartVideo(self, item):
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"""
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Handles the Starting of a Video and Display Management
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"""
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self.videoDisplay.setVisible(True)
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self.mainDisplay.setVisible(False)
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self.videoDisplay.onMediaQueue(item)
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def onStopVideo(self):
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"""
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Handles the Stopping of a Video and Display Management
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"""
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self.mainDisplay.setVisible(True)
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self.videoDisplay.setVisible(False)
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self.videoDisplay.onMediaStop()
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def close(self):
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"""
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Handles the closure of the displays
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"""
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self.videoDisplay.close()
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self.audioPlayer.close()
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self.mainDisplay.close()
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class DisplayWidget(QtGui.QGraphicsView):
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"""
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Customised version of QTableWidget which can respond to keyboard
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events.
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"""
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log.info(u'MainDisplay loaded')
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def __init__(self, parent=None, name=None):
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QtGui.QWidget.__init__(self, None)
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self.parent = parent
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self.hotkey_map = {
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QtCore.Qt.Key_Return: 'servicemanager_next_item',
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QtCore.Qt.Key_Space: 'slidecontroller_live_next_noloop',
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QtCore.Qt.Key_Enter: 'slidecontroller_live_next_noloop',
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QtCore.Qt.Key_0: 'servicemanager_next_item',
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QtCore.Qt.Key_Backspace: 'slidecontroller_live_previous_noloop'}
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def keyPressEvent(self, event):
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if isinstance(event, QtGui.QKeyEvent):
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#here accept the event and do something
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if event.key() == QtCore.Qt.Key_Up:
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Receiver.send_message(u'slidecontroller_live_previous')
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event.accept()
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elif event.key() == QtCore.Qt.Key_Down:
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Receiver.send_message(u'slidecontroller_live_next')
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event.accept()
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elif event.key() == QtCore.Qt.Key_PageUp:
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Receiver.send_message(u'slidecontroller_live_first')
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event.accept()
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elif event.key() == QtCore.Qt.Key_PageDown:
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Receiver.send_message(u'slidecontroller_live_last')
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event.accept()
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elif event.key() in self.hotkey_map:
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Receiver.send_message(self.hotkey_map[event.key()])
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event.accept()
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elif event.key() == QtCore.Qt.Key_Escape:
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self.resetDisplay()
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event.accept()
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event.ignore()
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else:
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event.ignore()
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class MainDisplay(DisplayWidget):
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"""
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This is the form that is used to display things on the projector.
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"""
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log.info(u'MainDisplay Loaded')
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def __init__(self, parent, screens):
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"""
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The constructor for the display form.
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``parent``
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The parent widget.
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``screens``
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The list of screens.
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"""
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log.debug(u'Initialisation started')
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DisplayWidget.__init__(self, parent)
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self.setWindowFlags(QtCore.Qt.Window | QtCore.Qt.FramelessWindowHint)
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self.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
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self.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
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self.parent = parent
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# WA_TranslucentBackground is not available in QT4.4
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try:
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self.setAttribute(QtCore.Qt.WA_TranslucentBackground)
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except AttributeError:
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pass
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self.screens = screens
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self.setupScene()
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self.setupVideo()
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self.setupImage()
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self.setupText()
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self.setupAlert()
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self.setupBlank()
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self.primary = True
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self.blankFrame = None
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self.frame = None
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#Hide desktop for now until we know where to put it
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#and what size it should be.
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self.setVisible(False)
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def setup(self):
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"""
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Sets up the screen on a particular screen.
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"""
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log.debug(u'Setup %s for %s ' % (
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self.screens, self.screens.monitor_number))
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self.setVisible(False)
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self.screen = self.screens.current
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#Sort out screen locations and sizes
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self.setGeometry(self.screen[u'size'])
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self.scene.setSceneRect(0,0,self.size().width(), self.size().height())
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self.webView.setGeometry(0, 0, self.size().width(), self.size().height())
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#Build a custom splash screen
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self.InitialFrame = QtGui.QImage(
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self.screen[u'size'].width(),
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self.screen[u'size'].height(),
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QtGui.QImage.Format_ARGB32_Premultiplied)
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splash_image = QtGui.QImage(u':/graphics/openlp-splash-screen.png')
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painter_image = QtGui.QPainter()
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painter_image.begin(self.InitialFrame)
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painter_image.fillRect(self.InitialFrame.rect(), QtCore.Qt.white)
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painter_image.drawImage(
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(self.screen[u'size'].width() - splash_image.width()) / 2,
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(self.screen[u'size'].height() - splash_image.height()) / 2,
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splash_image)
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self.displayImage(self.InitialFrame)
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self.repaint()
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#Build a Black screen
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painter = QtGui.QPainter()
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self.blankFrame = QtGui.QImage(
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self.screen[u'size'].width(),
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self.screen[u'size'].height(),
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QtGui.QImage.Format_ARGB32_Premultiplied)
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painter.begin(self.blankFrame)
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painter.fillRect(self.blankFrame.rect(), QtCore.Qt.black)
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#build a blank transparent image
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self.transparent = QtGui.QPixmap(
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self.screen[u'size'].width(), self.screen[u'size'].height())
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self.transparent.fill(QtCore.Qt.transparent)
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# self.displayText.setPixmap(self.transparent)
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#self.frameView(self.transparent)
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# To display or not to display?
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if not self.screen[u'primary']:
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self.setVisible(True)
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self.primary = False
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else:
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self.setVisible(False)
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self.primary = True
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def setupScene(self):
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self.scene = QtGui.QGraphicsScene(self)
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self.scene.setSceneRect(0,0,self.size().width(), self.size().height())
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self.setScene(self.scene)
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def setupVideo(self):
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self.webView = QtWebKit.QWebView()
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self.page = self.webView.page()
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self.videoDisplay = self.page.mainFrame()
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self.videoDisplay.setScrollBarPolicy(QtCore.Qt.Vertical, QtCore.Qt.ScrollBarAlwaysOff)
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self.videoDisplay.setScrollBarPolicy(QtCore.Qt.Horizontal, QtCore.Qt.ScrollBarAlwaysOff)
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self.proxy = QtGui.QGraphicsProxyWidget()
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self.proxy.setWidget(self.webView)
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self.proxy.setWindowFlags(QtCore.Qt.Window | QtCore.Qt.FramelessWindowHint)
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self.proxy.setZValue(1)
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self.scene.addItem(self.proxy)
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def setupImage(self):
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self.imageDisplay = QtGui.QGraphicsPixmapItem()
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self.imageDisplay.setZValue(2)
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self.scene.addItem(self.imageDisplay)
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def setupText(self):
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#self.displayText = QtGui.QGraphicsTextItem()
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self.displayText = QtGui.QGraphicsPixmapItem()
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#self.displayText.setPos(0,0)
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#self.displayText.setTextWidth(self.size().width())
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self.displayText.setZValue(4)
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self.scene.addItem(self.displayText)
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def setupAlert(self):
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self.alertText = QtGui.QGraphicsTextItem()
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self.alertText.setTextWidth(self.size().width())
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self.alertText.setZValue(8)
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self.scene.addItem(self.alertText)
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def setupBlank(self):
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self.displayBlank = QtGui.QGraphicsPixmapItem()
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self.displayBlank.setZValue(10)
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self.scene.addItem(self.displayBlank)
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def resetDisplay(self):
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log.debug(u'resetDisplay')
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Receiver.send_message(u'slidecontroller_live_stop_loop')
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if self.primary:
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self.setVisible(False)
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else:
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self.setVisible(True)
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# def hideDisplayForVideo(self):
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# """
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# Hides the main display if for the video to be played
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# """
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# self.hideDisplay(HideMode.Screen)
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def hideDisplay(self, mode=HideMode.Screen):
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"""
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Hide the display by making all layers transparent
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Store the images so they can be replaced when required
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"""
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log.debug(u'hideDisplay mode = %d', mode)
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#self.displayText.setPixmap(self.transparent)
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if mode == HideMode.Screen:
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#self.display_image.setPixmap(self.transparent)
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self.setVisible(False)
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elif mode == HideMode.Blank:
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self.displayBlank.setPixmap(
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QtGui.QPixmap.fromImage(self.blankFrame))
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else:
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if self.parent.renderManager.renderer.bg_frame:
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self.displayBlank.setPixmap(QtGui.QPixmap.fromImage(
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self.parent.renderManager.renderer.bg_frame))
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else:
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self.displayBlank.setPixmap(
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QtGui.QPixmap.fromImage(self.blankFrame))
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def showDisplay(self, message=u''):
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"""
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Show the stored layers so the screen reappears as it was
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originally.
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Make the stored images None to release memory.
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"""
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log.debug(u'showDisplay')
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self.displayBlank.setPixmap(self.transparent)
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#Trigger actions when display is active again
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Receiver.send_message(u'maindisplay_active')
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def addImageWithText(self, frame):
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log.debug(u'addImageWithText')
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frame = resize_image(
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frame, self.screen[u'size'].width(), self.screen[u'size'].height())
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self.imageDisplay.setPixmap(QtGui.QPixmap.fromImage(frame))
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self.videoDisplay.setHtml(u'<html></html>')
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def addAlert(self, message, location):
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"""
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Places the Alert text on the display at the correct location
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``message``
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Text to be displayed
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``location``
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Where on the screen the text should be. From the AlertTab
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Combo box.
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"""
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log.debug(u'addAlertImage')
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if location == 0:
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self.alertText.setPos(0, 0)
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elif location == 1:
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self.alertText.setPos(0,self.size().height()/2)
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else:
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self.alertText.setPos(0,self.size().height() - 76)
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self.alertText.setHtml(message)
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def displayImage(self, frame):
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"""
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Places the Image passed on the display screen
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``frame``
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The image to be displayed
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"""
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log.debug(u'adddisplayImage')
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if isinstance(frame, QtGui.QImage):
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self.imageDisplay.setPixmap(QtGui.QPixmap.fromImage(frame))
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else:
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self.imageDisplay.setPixmap(frame)
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self.videoDisplay.setHtml(u'<html></html>')
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def displayVideo(self, path):
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"""
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Places the Video passed on the display screen
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``path``
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The path to the image to be displayed
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"""
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log.debug(u'adddisplayVideo')
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self.displayImage(self.transparent)
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self.videoDisplay.setHtml(HTMLVIDEO %
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(path, self.screen[u'size'].width(), self.screen[u'size'].height()))
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def frameView(self, frame, transition=False):
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"""
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Called from a slide controller to display a frame
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if the alert is in progress the alert is added on top
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``frame``
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Image frame to be rendered
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``transition``
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Are transitions required.
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"""
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log.debug(u'frameView')
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if transition:
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if self.frame is not None:
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self.displayText.setPixmap(
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QtGui.QPixmap.fromImage(self.frame))
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self.repaint()
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Receiver.send_message(u'openlp_process_events')
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time.sleep(0.1)
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self.frame = None
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if frame[u'trans'] is not None:
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self.displayText.setPixmap(
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QtGui.QPixmap.fromImage(frame[u'trans']))
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self.repaint()
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Receiver.send_message(u'openlp_process_events')
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time.sleep(0.1)
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self.frame = frame[u'trans']
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self.displayText.setPixmap(
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QtGui.QPixmap.fromImage(frame[u'main']))
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else:
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if isinstance(frame, QtGui.QPixmap):
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self.displayText.setPixmap(frame)
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else:
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self.displayText.setPixmap(QtGui.QPixmap.fromImage(frame))
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if not self.isVisible() and self.screens.display:
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self.setVisible(True)
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class VideoDisplay(Phonon.VideoWidget):
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"""
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This is the form that is used to display videos on the projector.
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"""
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log.info(u'VideoDisplay Loaded')
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def __init__(self, parent, screens,
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aspect=Phonon.VideoWidget.AspectRatioWidget):
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"""
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The constructor for the display form.
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``parent``
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The parent widget.
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``screens``
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The list of screens.
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"""
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log.debug(u'VideoDisplay Initialisation started')
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Phonon.VideoWidget.__init__(self)
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self.setWindowTitle(u'OpenLP Video Display')
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self.parent = parent
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self.screens = screens
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self.hidden = False
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self.message = None
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self.mediaActive = False
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self.mediaObject = Phonon.MediaObject()
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self.setAspectRatio(aspect)
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self.audioObject = Phonon.AudioOutput(Phonon.VideoCategory)
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Phonon.createPath(self.mediaObject, self)
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Phonon.createPath(self.mediaObject, self.audioObject)
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flags = QtCore.Qt.FramelessWindowHint | QtCore.Qt.Dialog
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## # WindowsStaysOnBottomHint is not available in QT4.4
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# try:
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# flags = flags | QtCore.Qt.WindowStaysOnBottomHint
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# except AttributeError:
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# pass
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self.setWindowFlags(flags)
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'videodisplay_play'), self.onMediaPlay)
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'videodisplay_pause'), self.onMediaPause)
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# QtCore.QObject.connect(Receiver.get_receiver(),
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# QtCore.SIGNAL(u'videodisplay_background'), self.onMediaBackground)
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'config_updated'), self.setup)
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QtCore.QObject.connect(self.mediaObject,
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QtCore.SIGNAL(u'finished()'), self.onMediaStop)
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self.setVisible(False)
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def keyPressEvent(self, event):
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if isinstance(event, QtGui.QKeyEvent):
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#here accept the event and do something
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if event.key() == QtCore.Qt.Key_Escape:
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self.onMediaStop()
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event.accept()
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event.ignore()
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else:
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event.ignore()
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def setup(self):
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"""
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Sets up the screen on a particular screen.
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"""
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log.debug(u'VideoDisplay Setup %s for %s ' % (self.screens,
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self.screens.monitor_number))
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self.screen = self.screens.current
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#Sort out screen locations and sizes
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self.setGeometry(self.screen[u'size'])
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# To display or not to display?
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if not self.screen[u'primary']: # and self.isVisible():
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#self.showFullScreen()
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self.setVisible(False)
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self.primary = False
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else:
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self.setVisible(False)
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self.primary = True
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def closeEvent(self, event):
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"""
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Shutting down so clean up connections
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"""
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self.onMediaStop()
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for pth in self.outputPaths():
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disconnected = pth.disconnect()
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# def onMediaBackground(self, message=None):
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# """
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# Play a video triggered from the video plugin with the
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# file name passed in on the event.
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# Also triggered from the Finish event so the video will loop
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# if it is triggered from the plugin
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# """
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# log.debug(u'VideoDisplay Queue new media message %s' % message)
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# #If not file take the stored one
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# if not message:
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# message = self.message
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# # still no file name then stop as it was a normal video stopping
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# if message:
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# self.mediaObject.setCurrentSource(Phonon.MediaSource(message))
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# self.message = message
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# self._play()
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def onMediaQueue(self, message):
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"""
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Set up a video to play from the serviceitem.
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"""
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log.debug(u'VideoDisplay Queue new media message %s' % message)
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file = os.path.join(message.get_frame_path(),
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message.get_frame_title())
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self.mediaObject.setCurrentSource(Phonon.MediaSource(file))
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self.mediaActive = True
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self._play()
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def onMediaPlay(self):
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"""
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Respond to the Play button on the slide controller unless the display
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has been hidden by the slidecontroller
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"""
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if not self.hidden:
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log.debug(u'VideoDisplay Play the new media, Live ')
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self._play()
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def _play(self):
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"""
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We want to play the video so start it and display the screen
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"""
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log.debug(u'VideoDisplay _play called')
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self.mediaObject.play()
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self.setVisible(True)
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def onMediaPause(self):
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"""
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Pause the video and refresh the screen
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"""
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log.debug(u'VideoDisplay Media paused by user')
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self.mediaObject.pause()
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self.show()
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def onMediaStop(self):
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"""
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Stop the video and clean up
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"""
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log.debug(u'VideoDisplay Media stopped by user')
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self.message = None
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self.mediaActive = False
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self.mediaObject.stop()
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self.onMediaFinish()
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def onMediaFinish(self):
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"""
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|
Clean up the Object queue
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"""
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log.debug(u'VideoDisplay Reached end of media playlist')
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self.mediaObject.clearQueue()
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self.setVisible(False)
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def mediaHide(self, message=u''):
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"""
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|
Hide the video display
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"""
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|
self.mediaObject.pause()
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self.hidden = True
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self.setVisible(False)
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def mediaShow(self, message=''):
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"""
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|
Show the video disaply if it was already hidden
|
|
"""
|
|
if self.hidden:
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self.hidden = False
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|
if self.mediaActive:
|
|
self._play()
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|
|
class AudioPlayer(QtCore.QObject):
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"""
|
|
This Class will play audio only allowing components to work witn a
|
|
soundtrack which does not take over the user interface.
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"""
|
|
log.info(u'AudioPlayer Loaded')
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|
|
|
def __init__(self, parent):
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"""
|
|
The constructor for the display form.
|
|
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|
``parent``
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|
The parent widget.
|
|
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|
``screens``
|
|
The list of screens.
|
|
"""
|
|
log.debug(u'AudioPlayer Initialisation started')
|
|
QtCore.QObject.__init__(self)
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|
self.parent = parent
|
|
self.message = None
|
|
self.mediaObject = Phonon.MediaObject()
|
|
self.audioObject = Phonon.AudioOutput(Phonon.VideoCategory)
|
|
Phonon.createPath(self.mediaObject, self.audioObject)
|
|
|
|
def setup(self):
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|
"""
|
|
Sets up the Audio Player for use
|
|
"""
|
|
log.debug(u'AudioPlayer Setup')
|
|
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|
def close(self):
|
|
"""
|
|
Shutting down so clean up connections
|
|
"""
|
|
self.onMediaStop()
|
|
for pth in self.mediaObject.outputPaths():
|
|
disconnected = pth.disconnect()
|
|
|
|
def onMediaQueue(self, message):
|
|
"""
|
|
Set up a video to play from the serviceitem.
|
|
"""
|
|
log.debug(u'AudioPlayer Queue new media message %s' % message)
|
|
file = os.path.join(message[0].get_frame_path(),
|
|
message[0].get_frame_title())
|
|
self.mediaObject.setCurrentSource(Phonon.MediaSource(file))
|
|
self.onMediaPlay()
|
|
|
|
def onMediaPlay(self):
|
|
"""
|
|
We want to play the play so start it
|
|
"""
|
|
log.debug(u'AudioPlayer _play called')
|
|
self.mediaObject.play()
|
|
|
|
def onMediaPause(self):
|
|
"""
|
|
Pause the Audio
|
|
"""
|
|
log.debug(u'AudioPlayer Media paused by user')
|
|
self.mediaObject.pause()
|
|
|
|
def onMediaStop(self):
|
|
"""
|
|
Stop the Audio and clean up
|
|
"""
|
|
log.debug(u'AudioPlayer Media stopped by user')
|
|
self.message = None
|
|
self.mediaObject.stop()
|
|
self.onMediaFinish()
|
|
|
|
def onMediaFinish(self):
|
|
"""
|
|
Clean up the Object queue
|
|
"""
|
|
log.debug(u'AudioPlayer Reached end of media playlist')
|
|
self.mediaObject.clearQueue()
|