# -*- 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
import time
from PyQt4 import QtCore, QtGui
from openlp.core.lib import OpenLPToolbar, translate, Receiver, ServiceType
label_stylesheet = u"""
QTableWidget::item:selected
{
background-color: %s;
}
"""
class SlideList(QtGui.QTableWidget):
"""
Customised version of QTableWidget which can respond to keyboard
events.
"""
def __init__(self, parent=None, name=None):
QtGui.QTableWidget.__init__(self, parent.Controller)
self.parent = parent
text_color = QtGui.QApplication.palette().color(QtGui.QPalette.Base)
if text_color.value() > 128:
text_color = text_color.darker(120).name()
else:
text_color = text_color.lighter(120).name()
self.setStyleSheet(label_stylesheet % text_color)
def keyPressEvent(self, event):
if type(event) == QtGui.QKeyEvent:
#here accept the event and do something
if event.key() == QtCore.Qt.Key_Up:
self.parent.onSlideSelectedPrevious()
event.accept()
elif event.key() == QtCore.Qt.Key_Down:
self.parent.onSlideSelectedNext()
event.accept()
elif event.key() == QtCore.Qt.Key_PageUp:
self.parent.onSlideSelectedFirst()
event.accept()
elif event.key() == QtCore.Qt.Key_PageDown:
self.parent.onSlideSelectedLast()
event.accept()
event.ignore()
else:
event.ignore()
class SlideController(QtGui.QWidget):
"""
SlideController is the slide controller widget. This widget is what the
user uses to control the displaying of verses/slides/etc on the screen.
"""
global log
log = logging.getLogger(u'SlideController')
def __init__(self, parent, settingsmanager, isLive=False):
"""
Set up the Slide Controller.
"""
QtGui.QWidget.__init__(self, parent)
self.settingsmanager = settingsmanager
self.isLive = isLive
self.parent = parent
self.image_list = [
self.trUtf8(u'Start Loop'),
self.trUtf8(u'Stop Loop'),
u'Loop Separator',
self.trUtf8(u'Image SpinBox')
]
self.song_list = [
self.trUtf8(u'Edit Song'),
]
self.timer_id = 0
self.commandItem = None
self.Panel = QtGui.QWidget(parent.ControlSplitter)
# Layout for holding panel
self.PanelLayout = QtGui.QVBoxLayout(self.Panel)
self.PanelLayout.setSpacing(0)
self.PanelLayout.setMargin(0)
# Type label for the top of the slide controller
self.TypeLabel = QtGui.QLabel(self.Panel)
if self.isLive:
self.TypeLabel.setText(u'%s' % self.trUtf8(u'Live'))
else:
self.TypeLabel.setText(u'%s' % self.trUtf8(u'Preview'))
self.TypeLabel.setAlignment(QtCore.Qt.AlignCenter)
self.PanelLayout.addWidget(self.TypeLabel)
# Splitter
self.Splitter = QtGui.QSplitter(self.Panel)
self.Splitter.setOrientation(QtCore.Qt.Vertical)
self.PanelLayout.addWidget(self.Splitter)
# Actual controller section
self.Controller = QtGui.QWidget(self.Splitter)
self.Controller.setGeometry(QtCore.QRect(0, 0, 100, 536))
self.Controller.setSizePolicy(
QtGui.QSizePolicy(QtGui.QSizePolicy.Preferred,
QtGui.QSizePolicy.Maximum))
self.ControllerLayout = QtGui.QVBoxLayout(self.Controller)
self.ControllerLayout.setSpacing(0)
self.ControllerLayout.setMargin(0)
# Controller list view
self.PreviewListWidget = SlideList(self)
self.PreviewListWidget.setColumnCount(1)
self.PreviewListWidget.horizontalHeader().setVisible(False)
self.PreviewListWidget.verticalHeader().setVisible(False)
self.PreviewListWidget.setColumnWidth(1, self.Controller.width())
self.PreviewListWidget.isLive = self.isLive
self.PreviewListWidget.setObjectName(u'PreviewListWidget')
self.ControllerLayout.addWidget(self.PreviewListWidget)
# Build the full toolbar
self.Toolbar = OpenLPToolbar(self)
sizeToolbarPolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Fixed,
QtGui.QSizePolicy.Fixed)
sizeToolbarPolicy.setHorizontalStretch(0)
sizeToolbarPolicy.setVerticalStretch(0)
sizeToolbarPolicy.setHeightForWidth(
self.Toolbar.sizePolicy().hasHeightForWidth())
self.Toolbar.setSizePolicy(sizeToolbarPolicy)
if self.isLive:
self.Toolbar.addToolbarButton(
self.trUtf8(u'First Slide'), u':/slides/slide_first.png',
self.trUtf8(u'Move to first'), self.onSlideSelectedFirst)
self.Toolbar.addToolbarButton(
self.trUtf8(u'Previous Slide'), u':/slides/slide_previous.png',
self.trUtf8(u'Move to previous'), self.onSlideSelectedPrevious)
self.Toolbar.addToolbarButton(
self.trUtf8(u'Next Slide'), u':/slides/slide_next.png',
self.trUtf8(u'Move to next'), self.onSlideSelectedNext)
if self.isLive:
self.Toolbar.addToolbarButton(
self.trUtf8(u'Last Slide'), u':/slides/slide_last.png',
self.trUtf8(u'Move to last'), self.onSlideSelectedLast)
if self.isLive:
self.Toolbar.addToolbarSeparator(u'Close Separator')
self.blackPushButton = self.Toolbar.addPushButton(
u':/slides/slide_close.png')
if not self.isLive:
self.Toolbar.addToolbarSeparator(u'Close Separator')
self.Toolbar.addToolbarButton(
self.trUtf8(u'Go Live'), u':/system/system_live.png',
self.trUtf8(u'Move to live'), self.onGoLive)
self.Toolbar.addToolbarSeparator(u'Close Separator')
self.Toolbar.addToolbarButton(
self.trUtf8(u'Edit Song'), u':songs/song_edit.png',
self.trUtf8(u'Edit and re-preview Song'), self.onEditSong)
if isLive:
self.Toolbar.addToolbarSeparator(u'Loop Separator')
self.Toolbar.addToolbarButton(
self.trUtf8(u'Start Loop'), u':/media/media_time.png',
self.trUtf8(u'Start continuous loop'), self.onStartLoop)
self.Toolbar.addToolbarButton(
self.trUtf8(u'Stop Loop'), u':/media/media_stop.png',
self.trUtf8(u'Stop continuous loop'), self.onStopLoop)
self.DelaySpinBox = QtGui.QSpinBox()
self.Toolbar.addToolbarWidget(
self.trUtf8(u'Image SpinBox'), self.DelaySpinBox)
self.DelaySpinBox.setSuffix(self.trUtf8(u's'))
self.ControllerLayout.addWidget(self.Toolbar)
# Screen preview area
self.PreviewFrame = QtGui.QFrame(self.Splitter)
self.PreviewFrame.setGeometry(QtCore.QRect(0, 0, 300, 225))
self.PreviewFrame.setSizePolicy(QtGui.QSizePolicy(
QtGui.QSizePolicy.Preferred, QtGui.QSizePolicy.Minimum))
self.PreviewFrame.setFrameShape(QtGui.QFrame.StyledPanel)
self.PreviewFrame.setFrameShadow(QtGui.QFrame.Sunken)
self.PreviewFrame.setObjectName(u'PreviewFrame')
self.grid = QtGui.QGridLayout(self.PreviewFrame)
self.grid.setMargin(8)
self.grid.setObjectName(u'grid')
# Actual preview screen
self.SlidePreview = QtGui.QLabel(self.parent)
sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Fixed,
QtGui.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(
self.SlidePreview.sizePolicy().hasHeightForWidth())
self.SlidePreview.setSizePolicy(sizePolicy)
self.SlidePreview.setFixedSize(
QtCore.QSize(self.settingsmanager.slidecontroller_image, 225))
self.SlidePreview.setFrameShape(QtGui.QFrame.Box)
self.SlidePreview.setFrameShadow(QtGui.QFrame.Plain)
self.SlidePreview.setLineWidth(1)
self.SlidePreview.setScaledContents(True)
self.SlidePreview.setObjectName(u'SlidePreview')
self.grid.addWidget(self.SlidePreview, 0, 0, 1, 1)
# Signals
QtCore.QObject.connect(self.PreviewListWidget,
QtCore.SIGNAL(u'clicked(QModelIndex)'), self.onSlideSelected)
QtCore.QObject.connect(self.PreviewListWidget,
QtCore.SIGNAL(u'activated(QModelIndex)'), self.onSlideSelected)
if isLive:
QtCore.QObject.connect(self.blackPushButton,
QtCore.SIGNAL(u'toggled(bool)'), self.onBlankScreen)
QtCore.QObject.connect(Receiver.get_receiver(),
QtCore.SIGNAL(u'update_spin_delay'), self.receiveSpinDelay)
Receiver().send_message(u'request_spin_delay')
if isLive:
self.Toolbar.makeWidgetsInvisible(self.image_list)
else:
self.Toolbar.makeWidgetsInvisible(self.song_list)
QtCore.QObject.connect(Receiver.get_receiver(),
QtCore.SIGNAL(u'slidecontroller_first'), self.onSlideSelectedFirst)
QtCore.QObject.connect(Receiver.get_receiver(),
QtCore.SIGNAL(u'slidecontroller_next'), self.onSlideSelectedNext)
QtCore.QObject.connect(Receiver.get_receiver(),
QtCore.SIGNAL(u'slidecontroller_previous'), self.onSlideSelectedPrevious)
QtCore.QObject.connect(Receiver.get_receiver(),
QtCore.SIGNAL(u'slidecontroller_last'), self.onSlideSelectedLast)
def receiveSpinDelay(self, value):
self.DelaySpinBox.setValue(int(value))
def enableToolBar(self, item):
"""
Allows the toolbars to be reconfigured based on Controller Type
and ServiceItem Type
"""
if self.isLive:
self.enableLiveToolBar(item)
else:
self.enablePreviewToolBar(item)
def enableLiveToolBar(self, item):
"""
Allows the live toolbar to be customised
"""
if item.service_item_type == ServiceType.Text:
self.Toolbar.makeWidgetsInvisible(self.image_list)
elif item.service_item_type == ServiceType.Image:
#Not sensible to allow loops with 1 frame
if len(item.frames) > 1:
self.Toolbar.makeWidgetsVisible(self.image_list)
else:
self.Toolbar.makeWidgetsInvisible(self.image_list)
def enablePreviewToolBar(self, item):
"""
Allows the Preview toolbar to be customised
"""
if item.name == u'Songs':
self.Toolbar.makeWidgetsVisible(self.song_list)
else:
self.Toolbar.makeWidgetsInvisible(self.song_list)
def addServiceItem(self, item):
"""
Method to install the service item into the controller and
request the correct the toolbar of the plugin
Called by plugins
"""
log.debug(u'addServiceItem')
#If old item was a command tell it to stop
if self.commandItem is not None and \
self.commandItem.service_item_type == ServiceType.Command:
Receiver().send_message(u'%s_stop'% self.commandItem.name.lower())
self.commandItem = item
before = time.time()
item.render()
log.info(u'Rendering took %4s' % (time.time() - before))
self.enableToolBar(item)
if item.service_item_type == ServiceType.Command:
Receiver().send_message(u'%s_start' % item.name.lower(), \
[item.shortname, item.service_item_path,
item.service_frames[0][u'title']])
self.displayServiceManagerItems(item, 0)
def addServiceManagerItem(self, item, slideno):
"""
Method to install the service item into the controller and
request the correct the toolbar of the plugin
Called by ServiceManager
"""
log.debug(u'addServiceItem')
#If old item was a command tell it to stop
if self.commandItem is not None and \
self.commandItem.service_item_type == ServiceType.Command:
Receiver().send_message(u'%s_stop'% self.commandItem.name.lower())
self.commandItem = item
self.enableToolBar(item)
if item.service_item_type == ServiceType.Command:
Receiver().send_message(u'%s_start' % item.name.lower(), \
[item.shortname, item.service_item_path,
item.service_frames[0][u'title'], slideno])
self.displayServiceManagerItems(item, slideno)
def displayServiceManagerItems(self, serviceitem, slideno):
"""
Loads a ServiceItem into the system from ServiceManager
Display the slide number passed
"""
log.debug(u'displayServiceManagerItems Start')
before = time.time()
self.serviceitem = serviceitem
self.PreviewListWidget.clear()
self.PreviewListWidget.setRowCount(0)
self.PreviewListWidget.setColumnWidth(
0, self.settingsmanager.slidecontroller_image)
for framenumber, frame in enumerate(self.serviceitem.frames):
self.PreviewListWidget.setRowCount(
self.PreviewListWidget.rowCount() + 1)
item = QtGui.QTableWidgetItem()
label = QtGui.QLabel()
label.setMargin(4)
#It is a Image
if frame[u'text'] is None:
pixmap = self.parent.RenderManager.resize_image(frame[u'image'])
label.setScaledContents(True)
label.setPixmap(QtGui.QPixmap.fromImage(pixmap))
slide_height = self.settingsmanager.slidecontroller_image * \
self.parent.RenderManager.screen_ratio
else:
label.setText(frame[u'text'])
label.setAlignment(QtCore.Qt.AlignHCenter)
slide_height = label.sizeHint().height()
self.PreviewListWidget.setCellWidget(framenumber, 0, label)
self.PreviewListWidget.setItem(framenumber, 0, item)
self.PreviewListWidget.setRowHeight(framenumber, slide_height)
self.PreviewListWidget.setColumnWidth(
0, self.PreviewListWidget.viewport().size().width())
if slideno > self.PreviewListWidget.rowCount():
self.PreviewListWidget.selectRow(self.PreviewListWidget.rowCount())
else:
self.PreviewListWidget.selectRow(slideno)
self.onSlideSelected()
self.PreviewListWidget.setFocus()
log.info(u'Display Rendering took %4s' % (time.time() - before))
if self.serviceitem.audit != u'':
Receiver().send_message(u'audit_live', self.serviceitem.audit)
log.debug(u'displayServiceManagerItems End')
#Screen event methods
def onSlideSelectedFirst(self):
"""
Go to the first slide.
"""
if self.commandItem is not None and \
self.commandItem.service_item_type == ServiceType.Command:
Receiver().send_message(u'%s_first'% self.commandItem.name.lower())
QtCore.QTimer.singleShot(0.5, self.grabMainDisplay)
else:
self.PreviewListWidget.selectRow(0)
self.onSlideSelected()
def onBlankScreen(self, blanked):
"""
Blank the screen.
"""
if self.commandItem is not None and \
self.commandItem.service_item_type == ServiceType.Command:
if blanked:
Receiver().send_message(u'%s_blank'% self.commandItem.name.lower())
else:
Receiver().send_message(u'%s_unblank'% self.commandItem.name.lower())
else:
self.parent.mainDisplay.blankDisplay()
def onSlideSelected(self):
"""
Generate the preview when you click on a slide.
if this is the Live Controller also display on the screen
"""
row = self.PreviewListWidget.currentRow()
if row > -1 and row < self.PreviewListWidget.rowCount():
if self.commandItem.service_item_type == ServiceType.Command:
Receiver().send_message(u'%s_slide'% self.commandItem.name.lower(), [row])
QtCore.QTimer.singleShot(0.5, self.grabMainDisplay)
else:
#label = self.PreviewListWidget.cellWidget(row, 0)
frame = self.serviceitem.frames[row][u'image']
before = time.time()
if frame is None:
frame = self.serviceitem.render_individual(row)
self.SlidePreview.setPixmap(QtGui.QPixmap.fromImage(frame))
log.info(u'Slide Rendering took %4s' % (time.time() - before))
if self.isLive:
self.parent.mainDisplay.frameView(frame)
def grabMainDisplay(self):
winid = QtGui.QApplication.desktop().winId()
rm = self.parent.RenderManager
rect = rm.screen_list[rm.current_display][u'size']
winimg = QtGui.QPixmap.grabWindow(winid, rect.x(), rect.y(), rect.width(), rect.height())
self.SlidePreview.setPixmap(winimg)
def onSlideSelectedNext(self):
"""
Go to the next slide.
"""
if self.commandItem is not None and \
self.commandItem.service_item_type == ServiceType.Command:
Receiver().send_message(u'%s_next'% self.commandItem.name.lower())
QtCore.QTimer.singleShot(0.5, self.grabMainDisplay)
else:
row = self.PreviewListWidget.currentRow() + 1
if row == self.PreviewListWidget.rowCount():
row = 0
self.PreviewListWidget.selectRow(row)
self.onSlideSelected()
def onSlideSelectedPrevious(self):
"""
Go to the previous slide.
"""
if self.commandItem is not None and \
self.commandItem.service_item_type == ServiceType.Command:
Receiver().send_message(
u'%s_previous'% self.commandItem.name.lower())
QtCore.QTimer.singleShot(0.5, self.grabMainDisplay)
else:
row = self.PreviewListWidget.currentRow() - 1
if row == -1:
row = self.PreviewListWidget.rowCount() - 1
self.PreviewListWidget.selectRow(row)
self.onSlideSelected()
def onSlideSelectedLast(self):
"""
Go to the last slide.
"""
if self.commandItem is not None and \
self.commandItem.service_item_type == ServiceType.Command:
Receiver().send_message(u'%s_last'% self.commandItem.name.lower())
QtCore.QTimer.singleShot(0.5, self.grabMainDisplay)
else:
self.PreviewListWidget.selectRow(self.PreviewListWidget.rowCount() - 1)
self.onSlideSelected()
def onStartLoop(self):
"""
Start the timer loop running and store the timer id
"""
if self.PreviewListWidget.rowCount() > 1:
self.timer_id = self.startTimer(
int(self.DelaySpinBox.value()) * 1000)
def onStopLoop(self):
"""
Stop the timer loop running
"""
self.killTimer(self.timer_id)
def timerEvent(self, event):
"""
If the timer event is for this window select next slide
"""
if event.timerId() == self.timer_id:
self.onSlideSelectedNext()
def onEditSong(self):
Receiver().send_message(u'edit_song')
def onGoLive(self):
"""
If preview copy slide item to live
"""
row = self.PreviewListWidget.currentRow()
if row > -1 and row < self.PreviewListWidget.rowCount():
self.parent.LiveController.addServiceManagerItem(
self.commandItem, row)