forked from openlp/openlp
487 lines
18 KiB
Python
487 lines
18 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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from PyQt4 import QtCore, QtGui
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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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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.mainDisplay = MainDisplay(self, screens)
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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 close(self):
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self.videoDisplay.close()
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self.mainDisplay.close()
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class DisplayWidget(QtGui.QWidget):
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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 type(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.parent = parent
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self.setWindowTitle(u'OpenLP Display')
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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.display_image = QtGui.QLabel(self)
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self.display_image.setScaledContents(True)
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self.display_text = QtGui.QLabel(self)
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self.display_text.setScaledContents(True)
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self.display_alert = QtGui.QLabel(self)
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self.display_alert.setScaledContents(True)
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self.primary = True
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self.displayBlank = False
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self.blankFrame = None
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self.frame = None
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'videodisplay_start'), self.hideDisplayForVideo)
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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_background'), self.hideDisplayForVideo)
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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.display_alert.setGeometry(self.screen[u'size'])
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self.display_image.resize(
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self.screen[u'size'].width(), self.screen[u'size'].height())
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self.display_text.resize(
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self.screen[u'size'].width(), self.screen[u'size'].height())
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self.setGeometry(self.screen[u'size'])
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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.display_image.setPixmap(QtGui.QPixmap.fromImage(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.display_alert.setPixmap(self.transparent)
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self.display_text.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.showFullScreen()
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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 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.showFullScreen()
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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.storeImage = QtGui.QPixmap(self.display_image.pixmap())
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self.storeText = QtGui.QPixmap(self.display_text.pixmap())
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self.display_alert.setPixmap(self.transparent)
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self.display_text.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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elif mode == HideMode.Blank:
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self.display_image.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.display_image.setPixmap(QtGui.QPixmap.fromImage(
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self.parent.renderManager.renderer.bg_frame))
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else:
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self.display_image.setPixmap(
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QtGui.QPixmap.fromImage(self.blankFrame))
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self.moveToTop()
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def moveToTop(self):
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log.debug(u'moveToTop')
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self.setWindowFlags(QtCore.Qt.WindowStaysOnTopHint |
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QtCore.Qt.FramelessWindowHint | QtCore.Qt.Dialog)
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self.show()
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def showDisplay(self):
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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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if self.storeImage:
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self.display_image.setPixmap(self.storeImage)
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self.display_alert.setPixmap(self.transparent)
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if self.storeText:
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self.display_text.setPixmap(self.storeText)
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self.storeImage = None
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self.store = None
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self.moveToTop()
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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.display_image.setPixmap(QtGui.QPixmap.fromImage(frame))
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self.moveToTop()
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def setAlertSize(self, top, height):
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log.debug(u'setAlertSize')
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self.display_alert.setGeometry(
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QtCore.QRect(0, top,
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self.screen[u'size'].width(), height))
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def addAlertImage(self, frame, blank=False):
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log.debug(u'addAlertImage')
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if blank:
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self.display_alert.setPixmap(self.transparent)
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else:
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self.display_alert.setPixmap(frame)
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self.moveToTop()
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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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"""
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log.debug(u'frameView %d' % (self.displayBlank))
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if not self.displayBlank:
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if transition:
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if self.frame is not None:
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self.display_text.setPixmap(
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QtGui.QPixmap.fromImage(self.frame))
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self.repaint()
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self.frame = None
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if frame[u'trans'] is not None:
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self.display_text.setPixmap(
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QtGui.QPixmap.fromImage(frame[u'trans']))
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self.repaint()
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self.frame = frame[u'trans']
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self.display_text.setPixmap(
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QtGui.QPixmap.fromImage(frame[u'main']))
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self.display_frame = frame[u'main']
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self.repaint()
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else:
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if isinstance(frame, QtGui.QPixmap):
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self.display_text.setPixmap(frame)
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else:
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self.display_text.setPixmap(QtGui.QPixmap.fromImage(frame))
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self.display_frame = frame
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if not self.isVisible() and self.screens.display:
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self.setVisible(True)
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self.showFullScreen()
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else:
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self.waitingFrame = frame
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self.waitingFrameTrans = transition
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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.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'maindisplay_hide'), self.mediaHide)
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'maindisplay_show'), self.mediaShow)
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'videodisplay_start'), self.onMediaQueue)
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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_stop'), self.onMediaStop)
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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.onMediaBackground)
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self.setVisible(False)
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def keyPressEvent(self, event):
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if type(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.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 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[0].get_frame_path(),
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message[0].get_frame_title())
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self.mediaObject.setCurrentSource(Phonon.MediaSource(file))
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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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self.showFullScreen()
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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.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):
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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):
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"""
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Show the video disaply if it was already hidden
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"""
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if self.hidden:
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self.hidden = False
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self._play()
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