forked from openlp/openlp
224 lines
8.9 KiB
Python
224 lines
8.9 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) 2008-2009 Raoul Snyman #
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# Portions copyright (c) 2008-2009 Martin Thompson, Tim Bentley, Carsten #
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# Tinggaard, Jon Tibble, Jonathan Corwin, Maikel Stuivenberg, Scott Guerrieri #
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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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from PyQt4 import QtCore, QtGui
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from openlp.core.lib import Receiver, str_to_bool
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class DisplayLabel(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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def __init__(self, parent=None, name=None):
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QQtGui.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'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'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'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'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(DisplayLabel):
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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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QtGui.QWidget.__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.layout = QtGui.QVBoxLayout(self)
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self.layout.setSpacing(0)
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self.layout.setMargin(0)
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self.layout.setObjectName(u'layout')
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self.display = QtGui.QLabel(self)
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self.display.setScaledContents(True)
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self.layout.addWidget(self.display)
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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.alertactive = False
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self.alertTab = None
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self.timer_id = 0
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'live_slide_blank'), self.blankDisplay)
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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'presentations_start'), self.hideDisplay)
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QtCore.QObject.connect(Receiver.get_receiver(),
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QtCore.SIGNAL(u'presentations_stop'), self.showDisplay)
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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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screen = self.screens[screenNumber]
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if screen[u'number'] != screenNumber:
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# We will most probably never actually hit this bit, but just in
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# case the index in the list doesn't match the screen number, we
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# search for it.
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for scrn in self.screens:
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if scrn[u'number'] == screenNumber:
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screen = scrn
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break
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self.setGeometry(screen[u'size'])
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if not 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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#Build a custom splash screen
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if str_to_bool(self.parent.generalConfig.get_config(u'show splash', u'True')):
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self.InitialFrame = QtGui.QImage(
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screen[u'size'].width(), 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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(screen[u'size'].width() - splash_image.width()) / 2,
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(screen[u'size'].height() - splash_image.height()) / 2,
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splash_image)
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self.frameView(self.InitialFrame)
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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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screen[u'size'].width(), 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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def resetDisplay(self):
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if self.primary:
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self.setVisible(False)
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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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def frameView(self, frame):
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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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self.frame = frame
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if self.timer_id != 0 :
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self.displayAlert()
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elif not self.displayBlank:
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self.display.setPixmap(QtGui.QPixmap.fromImage(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):
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if not self.displayBlank:
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self.displayBlank = True
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self.display.setPixmap(QtGui.QPixmap.fromImage(self.blankFrame))
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else:
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self.displayBlank = False
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if self.frame is not None:
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self.frameView(self.frame)
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self.parent.generalConfig.set_config(u'Screen Blank',self.displayBlank)
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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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alertTab = self.parent.settingsForm.AlertsTab
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alertframe = QtGui.QPixmap.fromImage(self.frame)
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painter = QtGui.QPainter(alertframe)
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top = alertframe.rect().height() * 0.9
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painter.fillRect(
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QtCore.QRect(
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0, top, alertframe.rect().width(),
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alertframe.rect().height() - top),
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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, top)
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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.setPixmap(alertframe)
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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.setPixmap(QtGui.QPixmap.fromImage(self.frame))
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self.killTimer(self.timer_id)
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self.timer_id = 0
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