forked from openlp/openlp
403 lines
16 KiB
Python
403 lines
16 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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Copyright (c) 2008 Raoul Snyman
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Portions copyright (c) 2008-2009 Martin Thompson, Tim Bentley,
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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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 openlp.core.lib import OpenLPToolbar, translate, buildIcon
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class SlideList(QtGui.QTableWidget):
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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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QtGui.QTableWidget.__init__(self, parent.Controller)
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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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self.parent.BaseToolbar.onSlideSelectedPrevious()
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event.accept()
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elif event.key() == QtCore.Qt.Key_Down:
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self.parent.BaseToolbar.onSlideSelectedNext()
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event.accept()
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elif event.key() == QtCore.Qt.Key_PageUp:
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self.parent.BaseToolbar.onSlideSelectedFirst()
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event.accept()
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elif event.key() == QtCore.Qt.Key_PageDown:
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self.parent.BaseToolbar.onSlideSelectedLast()
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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 SlideController(QtGui.QWidget):
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"""
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SlideController is the slide controller widget. This widget is what the user
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uses to control the displaying of verses/slides/etc on the screen.
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"""
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global log
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log = logging.getLogger(u'SlideController')
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def __init__(self, parent, isLive=False):
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"""
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Set up the Slide Controller.
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"""
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self.toolbarList = {}
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self.previewList = {}
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QtGui.QWidget.__init__(self, parent.mainWindow)
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self.isLive = isLive
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self.parent = parent
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self.Panel = QtGui.QWidget(parent.ControlSplitter)
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self.Splitter = QtGui.QSplitter(self.Panel)
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self.Splitter.setOrientation(QtCore.Qt.Vertical)
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# Layout for holding panel
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self.PanelLayout = QtGui.QVBoxLayout(self.Panel)
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self.PanelLayout.addWidget(self.Splitter)
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self.PanelLayout.setSpacing(0)
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self.PanelLayout.setMargin(0)
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# Actual controller section
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self.Controller = QtGui.QWidget(self.Splitter)
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self.Controller.setGeometry(QtCore.QRect(0, 0, 100, 536))
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self.Controller.setSizePolicy(
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QtGui.QSizePolicy(QtGui.QSizePolicy.Preferred,
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QtGui.QSizePolicy.Maximum))
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self.ControllerLayout = QtGui.QVBoxLayout(self.Controller)
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self.ControllerLayout.setSpacing(0)
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self.ControllerLayout.setMargin(0)
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# Controller list view
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self.PreviewListWidget = SlideList(self)
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self.PreviewListWidget.setColumnCount(1)
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self.PreviewListWidget.horizontalHeader().setVisible(False)
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self.PreviewListWidget.verticalHeader().setVisible(False)
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self.PreviewListWidget.setColumnWidth(1, self.Controller.width())
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self.PreviewListWidget.isLive = self.isLive
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self.PreviewListWidget.setObjectName(u'PreviewListWidget')
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self.ControllerLayout.addWidget(self.PreviewListWidget)
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# Plugin the Base Toolbar class
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self.BaseToolbar = MasterToolbar(self.isLive)
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self.registerToolbar(u'master', self.BaseToolbar)
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self.Toolbar = self.BaseToolbar.getToolbar()
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self.ControllerLayout.addWidget(self.Toolbar)
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sizeToolbarPolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Fixed,
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QtGui.QSizePolicy.Fixed)
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sizeToolbarPolicy.setHorizontalStretch(0)
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sizeToolbarPolicy.setVerticalStretch(0)
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sizeToolbarPolicy.setHeightForWidth(
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self.Toolbar.sizePolicy().hasHeightForWidth())
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self.Toolbar.setSizePolicy(sizeToolbarPolicy)
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# Screen preview area
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self.PreviewFrame = QtGui.QFrame(self.Splitter)
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self.PreviewFrame.setGeometry(QtCore.QRect(0, 0, 280, 190))
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self.PreviewFrame.setSizePolicy(QtGui.QSizePolicy(
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QtGui.QSizePolicy.Preferred, QtGui.QSizePolicy.Minimum))
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self.PreviewFrame.setFrameShape(QtGui.QFrame.StyledPanel)
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self.PreviewFrame.setFrameShadow(QtGui.QFrame.Sunken)
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self.PreviewFrame.setObjectName(u'PreviewFrame')
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self.grid = QtGui.QGridLayout(self.PreviewFrame)
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self.grid.setMargin(8)
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self.grid.setObjectName(u'grid')
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# Actual preview screen
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masterPreview = MasterPreview(self.PreviewFrame).getPreview()
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self.registerPreview(u'master', masterPreview)
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self.SlidePreview = self.retrievePreview(u'master')
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self.grid.addWidget(self.SlidePreview, 0, 0, 1, 1)
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# Signals
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QtCore.QObject.connect(self.PreviewListWidget,
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QtCore.SIGNAL(u'clicked(QModelIndex)'), self.BaseToolbar.onSlideSelected)
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QtCore.QObject.connect(self.PreviewListWidget,
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QtCore.SIGNAL(u'activated(QModelIndex)'), self.BaseToolbar.onSlideSelected)
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# Add Late Arrivals
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self.BaseToolbar.PreviewListWidget = self.PreviewListWidget
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self.BaseToolbar.SlidePreview = self.SlidePreview
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self.BaseToolbar.mainDisplay = self.parent.mainDisplay
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def registerToolbar(self, handle,controller):
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"""
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Register a new toolbar with the controller
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``handle``
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Identifier for the toolbar being stored this should equal the
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plugins name.
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``controller``
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The toolbar class which should extend MasterToolbar
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"""
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#store the handle name in lower case so no probems later
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self.toolbarList[handle.lower()] = controller
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def registerPreview(self, handle,controller):
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"""
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Register a new preview with the controller
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``handle``
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Identifier for the preview being stored this should equal the
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plugins name.
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``controller``
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The preview class which should extend MasterToolbar
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"""
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#store the handle name in lower case so no probems later
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self.previewList[handle.lower()] = controller
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def retrieveToolbar(self, handle):
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"""
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Find the toolbar and return master if none present
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Add extra information back into toolbar class
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``handle``
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Identifier for the toolbar being requested
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"""
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try:
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toolbar = self.toolbarList[handle.lower()]
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except:
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toolbar = self.toolbarList[u'master']
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toolbar.PreviewListWidget = self.PreviewListWidget
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toolbar.SlidePreview = self.SlidePreview
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toolbar.mainDisplay = self.parent.mainDisplay
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return toolbar
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def retrievePreview(self, handle):
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"""
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Find the preview and return master if none present
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Add extra information back into toolbar class
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``handle``
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Identifier for the toolbar being requested
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"""
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try:
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preview = self.previewList[handle.lower()]
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except:
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preview = self.previewList[u'master']
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return preview
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def addServiceItem(self, item):
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"""
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Method to install the service item into the controller and
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request the correct the toolbar of the plugin
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Called by plugins
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"""
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self.SlidePreview = self.retrievePreview(item.shortname)
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self.BaseToolbar = self.retrieveToolbar(item.shortname)
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self.ControllerLayout.removeWidget(self.Toolbar)
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#remove the old toolbar
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self.Toolbar.clear()
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self.Toolbar = self.BaseToolbar.getToolbar()
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self.ControllerLayout.addWidget(self.Toolbar)
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self.BaseToolbar.addServiceItem(item)
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def addServiceManagerItem(self, item, slideno):
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"""
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Method to install the service item into the controller and
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request the correct the toolbar of the plugin
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Called by ServiceManager
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"""
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self.SlidePreview = self.retrievePreview(item.shortname)
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self.BaseToolbar = self.retrieveToolbar(item.shortname)
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self.ControllerLayout.removeWidget(self.Toolbar)
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#remove the old toolbar
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self.Toolbar.clear()
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self.Toolbar = self.BaseToolbar.getToolbar()
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self.ControllerLayout.addWidget(self.Toolbar)
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self.BaseToolbar.addServiceManagerItem(item, slideno)
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class MasterPreview(QtCore.QObject):
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"""
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Class from which all Previews should extend allowing plugins to
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have their own previews
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"""
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def __init__(self, parent):
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self.parent = parent
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QtCore.QObject.__init__(self)
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self.definePreview()
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def getPreview(self):
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return self.SlidePreview
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def definePreview(self):
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self.SlidePreview = QtGui.QLabel(self.parent)
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sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Fixed,
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QtGui.QSizePolicy.Fixed)
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sizePolicy.setHorizontalStretch(0)
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sizePolicy.setVerticalStretch(0)
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sizePolicy.setHeightForWidth(
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self.SlidePreview.sizePolicy().hasHeightForWidth())
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self.SlidePreview.setSizePolicy(sizePolicy)
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self.SlidePreview.setFixedSize(QtCore.QSize(250, 210))
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self.SlidePreview.setFrameShape(QtGui.QFrame.Box)
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self.SlidePreview.setFrameShadow(QtGui.QFrame.Plain)
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self.SlidePreview.setLineWidth(1)
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self.SlidePreview.setScaledContents(True)
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self.SlidePreview.setObjectName(u'SlidePreview')
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class MasterToolbar(QtCore.QObject):
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"""
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Class from which all toolbars should extend
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"""
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def __init__(self, isLive):
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self.Toolbar = None
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QtCore.QObject.__init__(self)
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self.PreviewListWidget = QtGui.QListWidget()
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self.isLive = isLive
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def getToolbar(self):
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#define toolbar here as it needs to be redefined each time
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#as the clear destroys it.
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self.defineToolbar()
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return self.Toolbar
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def defineToolbar(self):
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# Controller toolbar
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self.Toolbar = OpenLPToolbar(self)
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sizeToolbarPolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Fixed,
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QtGui.QSizePolicy.Fixed)
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sizeToolbarPolicy.setHorizontalStretch(0)
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sizeToolbarPolicy.setVerticalStretch(0)
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sizeToolbarPolicy.setHeightForWidth(
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self.Toolbar.sizePolicy().hasHeightForWidth())
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self.Toolbar.setSizePolicy(sizeToolbarPolicy)
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if self.isLive:
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self.Toolbar.addToolbarButton(u'First Slide',
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u':/slides/slide_first.png',
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translate(u'SlideController', u'Move to first'),
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self.onSlideSelectedFirst)
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self.Toolbar.addToolbarButton(u'Previous Slide',
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u':/slides/slide_previous.png',
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translate(u'SlideController', u'Move to previous'),
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self.onSlideSelectedPrevious)
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self.Toolbar.addToolbarButton(u'Next Slide',
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u':/slides/slide_next.png',
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translate(u'SlideController', u'Move to next'),
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self.onSlideSelectedNext)
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if self.isLive:
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self.Toolbar.addToolbarButton(u'Last Slide',
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u':/slides/slide_last.png',
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translate(u'SlideController', u'Move to last'),
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self.onSlideSelectedLast)
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self.Toolbar.addSeparator()
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self.Toolbar.addToolbarButton(u'Close Screen',
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u':/slides/slide_close.png',
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translate(u'SlideController', u'Close Screen'),
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self.onBlankScreen)
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def serviceLoaded(self):
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"""
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method to allow toolbars to know when the service item
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is fully in place
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"""
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pass
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def onSlideSelectedFirst(self):
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"""
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Go to the first slide.
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"""
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self.PreviewListWidget.selectRow(0)
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self.onSlideSelected()
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def onSlideSelectedNext(self):
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"""
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Go to the next slide.
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"""
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row = self.PreviewListWidget.currentRow() + 1
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if row == self.PreviewListWidget.rowCount():
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row = 0
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self.PreviewListWidget.selectRow(row)
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self.onSlideSelected()
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def onSlideSelectedPrevious(self):
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"""
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Go to the previous slide.
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"""
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row = self.PreviewListWidget.currentRow() - 1
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if row == -1:
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row = self.PreviewListWidget.rowCount() - 1
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self.PreviewListWidget.selectRow(row)
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self.onSlideSelected()
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def onSlideSelectedLast(self):
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"""
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Go to the last slide.
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"""
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self.PreviewListWidget.selectRow(self.PreviewListWidget.rowCount() - 1)
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self.onSlideSelected()
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def onBlankScreen(self):
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"""
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Blank the screen.
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"""
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self.mainDisplay.blankDisplay()
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def onSlideSelected(self):
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"""
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Generate the preview when you click on a slide.
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if this is the Live Controller also display on the screen
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"""
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row = self.PreviewListWidget.currentRow()
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if row > -1 and row < self.PreviewListWidget.rowCount():
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label = self.PreviewListWidget.cellWidget(row, 0)
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smallframe = label.pixmap()
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frame = self.serviceitem.frames[row][u'image']
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self.SlidePreview.setPixmap(smallframe)
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if self.isLive:
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self.mainDisplay.frameView(frame)
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def addServiceItem(self, serviceitem, slideno = 1):
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"""
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Loads a ServiceItem into the system from plugins
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Display the first slide
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"""
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log.debug(u'add Service Item')
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serviceitem.render()
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self.addServiceManagerItem(serviceitem, 0)
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def addServiceManagerItem(self, serviceitem, slideno):
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"""
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Loads a ServiceItem into the system from ServiceManager
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Display the slide number passed
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"""
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log.debug(u'add Service Manager Item')
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self.serviceitem = serviceitem
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slide_pixmap = QtGui.QPixmap.fromImage(self.serviceitem.frames[0][u'image'])
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slide_width = 300
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slide_height = slide_width * slide_pixmap.height() / slide_pixmap.width()
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self.PreviewListWidget.clear()
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self.PreviewListWidget.setRowCount(0)
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self.PreviewListWidget.setColumnWidth(0, slide_width)
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for framenumber, frame in enumerate(self.serviceitem.frames):
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self.PreviewListWidget.setRowCount(self.PreviewListWidget.rowCount() + 1)
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pixmap = QtGui.QPixmap.fromImage(frame[u'image'])
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item = QtGui.QTableWidgetItem()
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label = QtGui.QLabel()
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label.setMargin(8)
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label.setScaledContents(True)
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label.setPixmap(pixmap)
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self.PreviewListWidget.setCellWidget(framenumber, 0, label)
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self.PreviewListWidget.setItem(framenumber, 0, item)
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self.PreviewListWidget.setRowHeight(framenumber, slide_height)
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slide_width = self.PreviewListWidget.viewport().size().width()
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self.PreviewListWidget.setColumnWidth(0, slide_width)
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if slideno > self.PreviewListWidget.rowCount():
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self.PreviewListWidget.selectRow(self.PreviewListWidget.rowCount())
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else:
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self.PreviewListWidget.selectRow(slideno)
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self.onSlideSelected()
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self.serviceLoaded()
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self.PreviewListWidget.setFocus()
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