# -*- coding: utf-8 -*- # vim: autoindent shiftwidth=4 expandtab textwidth=80 tabstop=4 softtabstop=4 ############################################################################### # OpenLP - Open Source Lyrics Projection # # --------------------------------------------------------------------------- # # Copyright (c) 2008-2009 Raoul Snyman # # Portions copyright (c) 2008-2009 Martin Thompson, Tim Bentley, Carsten # # Tinggaard, Jon Tibble, Jonathan Corwin, Maikel Stuivenberg, Scott Guerrieri # # --------------------------------------------------------------------------- # # This program is free software; you can redistribute it and/or modify it # # under the terms of the GNU General Public License as published by the Free # # Software Foundation; version 2 of the License. # # # # This program is distributed in the hope that it will be useful, but WITHOUT # # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or # # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for # # more details. # # # # You should have received a copy of the GNU General Public License along # # with this program; if not, write to the Free Software Foundation, Inc., 59 # # Temple Place, Suite 330, Boston, MA 02111-1307 USA # ############################################################################### import logging from PyQt4 import QtCore, QtGui from openlp.core.lib import Receiver, str_to_bool class DisplayLabel(QtGui.QWidget): """ Customised version of QTableWidget which can respond to keyboard events. """ def __init__(self, parent=None, name=None): QQtGui.QWidget.__init__(self, parent) self.parent = parent def keyPressEvent(self, event): if type(event) == QtGui.QKeyEvent: #here accept the event and do something if event.key() == QtCore.Qt.Key_Up: Receiver().send_message(u'slidecontroller_previous') event.accept() elif event.key() == QtCore.Qt.Key_Down: Receiver().send_message(u'slidecontroller_next') event.accept() elif event.key() == QtCore.Qt.Key_PageUp: Receiver().send_message(u'slidecontroller_first') event.accept() elif event.key() == QtCore.Qt.Key_PageDown: Receiver().send_message(u'slidecontroller_last') event.accept() elif event.key() == QtCore.Qt.Key_Escape: self.resetDisplay() event.accept() event.ignore() else: event.ignore() class MainDisplay(DisplayLabel): """ This is the form that is used to display things on the projector. """ global log log = logging.getLogger(u'MainDisplay') log.info(u'MainDisplay Loaded') def __init__(self, parent, screens): """ The constructor for the display form. ``parent`` The parent widget. ``screens`` The list of screens. """ log.debug(u'Initilisation started') QtGui.QWidget.__init__(self, None) self.parent = parent self.setWindowTitle(u'OpenLP Display') self.screens = screens self.layout = QtGui.QVBoxLayout(self) self.layout.setSpacing(0) self.layout.setMargin(0) self.layout.setObjectName(u'layout') self.display = QtGui.QLabel(self) self.display.setScaledContents(True) self.layout.addWidget(self.display) self.displayBlank = False self.blankFrame = None self.frame = None self.alertactive = False self.alertTab = None self.timer_id = 0 QtCore.QObject.connect(Receiver.get_receiver(), QtCore.SIGNAL(u'live_slide_blank'), self.blankDisplay) QtCore.QObject.connect(Receiver.get_receiver(), QtCore.SIGNAL(u'alert_text'), self.displayAlert) QtCore.QObject.connect(Receiver.get_receiver(), QtCore.SIGNAL(u'presentations_start'), self.hideDisplay) QtCore.QObject.connect(Receiver.get_receiver(), QtCore.SIGNAL(u'presentations_stop'), self.showDisplay) def setup(self, screenNumber): """ Sets up the screen on a particular screen. @param (integer) screen This is the screen number. """ log.debug(u'Setup %s for %s ' %(self.screens, screenNumber) ) screen = self.screens[screenNumber] if screen[u'number'] != screenNumber: # We will most probably never actually hit this bit, but just in # case the index in the list doesn't match the screen number, we # search for it. for scrn in self.screens: if scrn[u'number'] == screenNumber: screen = scrn break self.setGeometry(screen[u'size']) if not screen[u'primary']: self.showFullScreen() self.primary = False else: self.setVisible(False) self.primary = True #Build a custom splash screen if str_to_bool(self.parent.generalConfig.get_config(u'show splash', u'True')): self.InitialFrame = QtGui.QImage( screen[u'size'].width(), screen[u'size'].height(), QtGui.QImage.Format_ARGB32_Premultiplied) splash_image = QtGui.QImage(u':/graphics/openlp-splash-screen.png') painter_image = QtGui.QPainter() painter_image.begin(self.InitialFrame) painter_image.fillRect(self.InitialFrame.rect(), QtCore.Qt.white) painter_image.drawImage( (screen[u'size'].width() - splash_image.width()) / 2, (screen[u'size'].height() - splash_image.height()) / 2, splash_image) self.frameView(self.InitialFrame) #Build a Black screen painter = QtGui.QPainter() self.blankFrame = QtGui.QImage( screen[u'size'].width(), screen[u'size'].height(), QtGui.QImage.Format_ARGB32_Premultiplied) painter.begin(self.blankFrame) painter.fillRect(self.blankFrame.rect(), QtCore.Qt.black) def resetDisplay(self): if self.primary: self.setVisible(False) def hideDisplay(self): self.setVisible(False) def showDisplay(self): if not self.primary: self.setVisible(True) def frameView(self, frame): """ Called from a slide controller to display a frame if the alert is in progress the alert is added on top ``frame`` Image frame to be rendered """ self.frame = frame if self.timer_id != 0 : self.displayAlert() elif not self.displayBlank: self.display.setPixmap(QtGui.QPixmap.fromImage(frame)) if not self.isVisible(): self.setVisible(True) self.showFullScreen() def blankDisplay(self): if not self.displayBlank: self.displayBlank = True self.display.setPixmap(QtGui.QPixmap.fromImage(self.blankFrame)) else: self.displayBlank = False if self.frame is not None: self.frameView(self.frame) self.parent.generalConfig.set_config(u'Screen Blank',self.displayBlank) def displayAlert(self, text=u''): """ Called from the Alert Tab to display an alert ``text`` display text """ alertTab = self.parent.settingsForm.AlertsTab alertframe = QtGui.QPixmap.fromImage(self.frame) painter = QtGui.QPainter(alertframe) top = alertframe.rect().height() * 0.9 painter.fillRect( QtCore.QRect( 0, top, alertframe.rect().width(), alertframe.rect().height() - top), QtGui.QColor(alertTab.bg_color)) font = QtGui.QFont() font.setFamily(alertTab.font_face) font.setBold(True) font.setPointSize(40) painter.setFont(font) painter.setPen(QtGui.QColor(alertTab.font_color)) x, y = (0, top) metrics = QtGui.QFontMetrics(font) painter.drawText( x, y + metrics.height() - metrics.descent() - 1, text) painter.end() self.display.setPixmap(alertframe) # check to see if we have a timer running if self.timer_id == 0: self.timer_id = self.startTimer(int(alertTab.timeout) * 1000) def timerEvent(self, event): if event.timerId() == self.timer_id: self.display.setPixmap(QtGui.QPixmap.fromImage(self.frame)) self.killTimer(self.timer_id) self.timer_id = 0