forked from openlp/openlp
358 lines
14 KiB
Python
358 lines
14 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, Maikel Stuivenberg, Martin Thompson, Jon Tibble, #
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# 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
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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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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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global log
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log = logging.getLogger(u'MainDisplay')
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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, parent)
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self.parent = parent
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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'live_slidecontroller_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'live_slidecontroller_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'live_slidecontroller_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'live_slidecontroller_last')
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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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global log
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log = logging.getLogger(u'MainDisplay')
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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'Initilisation started')
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DisplayWidget.__init__(self, None)
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self.parent = parent
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self.setWindowTitle(u'OpenLP Display')
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self.screens = screens
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self.mediaObject = Phonon.MediaObject(self)
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self.video = Phonon.VideoWidget()
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self.video.setVisible(False)
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self.audio = Phonon.AudioOutput(Phonon.VideoCategory, self.mediaObject)
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Phonon.createPath(self.mediaObject, self.video)
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Phonon.createPath(self.mediaObject, self.audio)
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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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self.timer_id = 0
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self.firstTime = True
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self.mediaLoaded = False
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self.hasTransition = False
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self.alertList = []
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self.mediaBackground = False
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'alert_text'), self.displayAlert)
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'live_slide_hide'), self.hideDisplay)
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'live_slide_show'), self.showDisplay)
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QtCore.QObject.connect(self.mediaObject,
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QtCore.SIGNAL(u'finished()'), self.onMediaFinish)
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'media_start'), self.onMediaQueue)
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'media_play'), self.onMediaPlay)
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'media_pause'), self.onMediaPause)
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'media_stop'), self.onMediaStop)
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def setup(self, screenNumber):
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"""
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Sets up the screen on a particular screen.
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@param (integer) screen This is the screen number.
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"""
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log.debug(u'Setup %s for %s ' %(self.screens, screenNumber))
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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.alertScreenPosition = self.screen[u'size'].height() * 0.9
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self.alertHeight = self.screen[u'size'].height() - self.alertScreenPosition
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self.display_alert.setGeometry(
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QtCore.QRect(0, self.alertScreenPosition,
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self.screen[u'size'].width(),self.alertHeight))
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self.video.setGeometry(self.screen[u'size'])
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self.display_image.resize(self.screen[u'size'].width(),
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self.screen[u'size'].height())
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self.display_text.resize(self.screen[u'size'].width(),
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self.screen[u'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.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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#TODO make black when testing finished
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painter.fillRect(self.blankFrame.rect(), QtCore.Qt.red)
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#build a blank transparent image
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self.transparent = QtGui.QPixmap(self.screen[u'size'].width(),
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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.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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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 hideDisplay(self):
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self.setVisible(False)
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def showDisplay(self):
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if not self.primary:
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self.setVisible(True)
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self.showFullScreen()
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def addImageWithText(self, frame):
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frame = resize_image(frame,
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self.screen[u'size'].width(),
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self.screen[u'size'].height() )
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self.display_image.setPixmap(QtGui.QPixmap.fromImage(frame))
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# self.display_image.show()
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# if not self.isVisible():
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# self.setVisible(True)
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# self.showFullScreen()
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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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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(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(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(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():
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self.setVisible(True)
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self.showFullScreen()
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def blankDisplay(self, blanked=True):
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if blanked:
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self.displayBlank = True
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self.display_text.setPixmap(QtGui.QPixmap.fromImage(self.blankFrame))
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else:
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self.displayBlank = False
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if self.display_frame:
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self.frameView(self.display_frame)
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def displayAlert(self, text=u''):
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"""
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Called from the Alert Tab to display an alert
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``text``
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display text
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"""
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log.debug(u'display alert called %s' % text)
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self.parent.StatusBar.showMessage(self.trUtf8(u''))
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self.alertList.append(text)
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if self.timer_id != 0 or self.mediaLoaded:
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self.parent.StatusBar.showMessage(\
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self.trUtf8(u'Alert message created and delayed'))
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return
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self.generateAlert()
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def generateAlert(self):
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log.debug(u'Generate Alert called')
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if len(self.alertList) == 0:
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return
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text = self.alertList.pop(0)
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alertTab = self.parent.settingsForm.AlertsTab
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alertframe = \
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QtGui.QPixmap(self.screen[u'size'].width(), self.alertHeight)
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alertframe.fill(QtCore.Qt.transparent)
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painter = QtGui.QPainter(alertframe)
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painter.fillRect(alertframe.rect(), QtCore.Qt.transparent)
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painter.setRenderHint(QtGui.QPainter.Antialiasing)
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painter.fillRect(
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QtCore.QRect(
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0, 0, alertframe.rect().width(),
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alertframe.rect().height()),
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QtGui.QColor(alertTab.bg_color))
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font = QtGui.QFont()
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font.setFamily(alertTab.font_face)
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font.setBold(True)
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font.setPointSize(40)
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painter.setFont(font)
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painter.setPen(QtGui.QColor(alertTab.font_color))
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x, y = (0, 0)
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metrics = QtGui.QFontMetrics(font)
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painter.drawText(
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x, y + metrics.height() - metrics.descent() - 1, text)
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painter.end()
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self.display_alert.setPixmap(alertframe)
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self.display_alert.setVisible(True)
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# check to see if we have a timer running
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if self.timer_id == 0:
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self.timer_id = self.startTimer(int(alertTab.timeout) * 1000)
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def timerEvent(self, event):
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if event.timerId() == self.timer_id:
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self.display_alert.setPixmap(self.transparent)
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self.killTimer(self.timer_id)
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self.timer_id = 0
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self.generateAlert()
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def onMediaQueue(self, message):
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log.debug(u'Queue new media message %s' % message)
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self.display_image.close()
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self.display_text.close()
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self.display_alert.close()
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file = os.path.join(message[1], message[2])
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if self.firstTime:
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self.mediaObject.setCurrentSource(Phonon.MediaSource(file))
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self.firstTime = False
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else:
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self.mediaObject.enqueue(Phonon.MediaSource(file))
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self.onMediaPlay()
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def onMediaPlay(self):
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log.debug(u'Play the new media, Live ')
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if not self.mediaLoaded and not self.displayBlank:
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self.blankDisplay()
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self.display_frame = self.blankFrame
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self.firstTime = True
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self.mediaLoaded = True
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self.display_image.hide()
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self.display_text.hide()
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self.display_alert.hide()
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self.video.setFullScreen(True)
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self.video.setVisible(True)
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self.mediaObject.play()
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self.setVisible(True)
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self.hide()
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def onMediaPause(self):
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log.debug(u'Media paused by user')
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self.mediaObject.pause()
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def onMediaStop(self):
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log.debug(u'Media stopped by user')
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self.mediaObject.stop()
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self.onMediaFinish()
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def onMediaFinish(self):
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log.debug(u'Reached end of media playlist')
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self.mediaObject.stop()
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self.mediaObject.clearQueue()
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self.mediaLoaded = False
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self.video.setVisible(False)
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self.display_text.show()
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self.display_image.show()
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self.blankDisplay(False)
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