diff --git a/openlp/core/lib/serviceitem.py b/openlp/core/lib/serviceitem.py index a283885b2..a25205c82 100644 --- a/openlp/core/lib/serviceitem.py +++ b/openlp/core/lib/serviceitem.py @@ -82,6 +82,7 @@ class ServiceItem(object): self.from_plugin = False self.capabilities = [] self.is_valid = True + self.cache = [] def add_capability(self, capability): self.capabilities.append(capability) @@ -107,6 +108,7 @@ class ServiceItem(object): """ log.debug(u'Render called') self._display_frames = [] + self.cache = [] if self.service_item_type == ServiceItemType.Text: log.debug(u'Formatting slides') if self.theme is None: @@ -125,6 +127,7 @@ class ServiceItem(object): lines += line + u'\n' self._display_frames.append({u'title': title, \ u'text': lines.rstrip(), u'verseTag': slide[u'verseTag'] }) + self.cache.insert(len(self._display_frames), None) log.log(15, u'Formatting took %4s' % (time.time() - before)) elif self.service_item_type == ServiceItemType.Image: for slide in self._raw_frames: @@ -149,11 +152,15 @@ class ServiceItem(object): self.RenderManager.set_override_theme(self.theme) format = self._display_frames[row][u'text'].split(u'\n') #if screen blank then do not display footer - if format[0]: - frame = self.RenderManager.generate_slide(format, - self.raw_footer) + if self.cache[row] is not None: + frame = self.cache[row] else: - frame = self.RenderManager.generate_slide(format,u'') + if format[0]: + frame = self.RenderManager.generate_slide(format, + self.raw_footer) + else: + frame = self.RenderManager.generate_slide(format,u'') + self.cache[row] = frame return frame def add_from_image(self, path, title, image): diff --git a/openlp/core/ui/slidecontroller.py b/openlp/core/ui/slidecontroller.py index 15502423b..4673df4e2 100644 --- a/openlp/core/ui/slidecontroller.py +++ b/openlp/core/ui/slidecontroller.py @@ -36,6 +36,30 @@ ItemCapabilities log = logging.getLogger(__name__) +class SlideThread(QtCore.QThread): + """ + A special Qt thread class to fetch the version of OpenLP from the website. + This is threaded so that it doesn't affect the loading time of OpenLP. + """ + def __init__(self, parent, isLive, count): + QtCore.QThread.__init__(self, parent) + self.isLive = isLive + self.count = count + + def run(self): + """ + Run the thread. + """ + time.sleep(1) + for i in range(0, self.count): + if self.isLive: + Receiver.send_message(u'live_slide_cache', i) + else: + Receiver.send_message(u'preview_slide_cache', i) +# for framenumber, frame in enumerate(self.serviceItem.get_frames()): +# self.serviceItem.get_rendered_frame(framenumber) + + class SlideList(QtGui.QTableWidget): """ Customised version of QTableWidget which can respond to keyboard @@ -44,7 +68,7 @@ class SlideList(QtGui.QTableWidget): def __init__(self, parent=None, name=None): QtGui.QTableWidget.__init__(self, parent.Controller) self.parent = parent - self.hotkey_map = { + self.hotkeyMap = { QtCore.Qt.Key_Return: 'servicemanager_next_item', QtCore.Qt.Key_Space: 'slidecontroller_live_next_noloop', QtCore.Qt.Key_Enter: 'slidecontroller_live_next_noloop', @@ -66,8 +90,8 @@ class SlideList(QtGui.QTableWidget): elif event.key() == QtCore.Qt.Key_PageDown: self.parent.onSlideSelectedLast() event.accept() - elif event.key() in self.hotkey_map and self.parent.isLive: - Receiver.send_message(self.hotkey_map[event.key()]) + elif event.key() in self.hotkeyMap and self.parent.isLive: + Receiver.send_message(self.hotkeyMap[event.key()]) event.accept() event.ignore() else: @@ -87,13 +111,13 @@ class SlideController(QtGui.QWidget): self.isLive = isLive self.parent = parent self.mainDisplay = self.parent.displayManager.mainDisplay - self.loop_list = [ + self.loopList = [ u'Start Loop', u'Stop Loop', u'Loop Separator', u'Image SpinBox' ] - self.song_edit_list = [ + self.songEditList = [ u'Edit Song', ] if isLive: @@ -115,11 +139,11 @@ class SlideController(QtGui.QWidget): if self.isLive: self.TypeLabel.setText(self.trUtf8('Live')) self.split = 1 - self.type_prefix = u'live' + self.typePrefix = u'live' else: self.TypeLabel.setText(self.trUtf8('Preview')) self.split = 0 - self.type_prefix = u'preview' + self.typePrefix = u'preview' self.TypeLabel.setStyleSheet(u'font-weight: bold; font-size: 12pt;') self.TypeLabel.setAlignment(QtCore.Qt.AlignCenter) self.PanelLayout.addWidget(self.TypeLabel) @@ -309,51 +333,57 @@ class SlideController(QtGui.QWidget): QtCore.SIGNAL(u'slidecontroller_live_spin_delay'), self.receiveSpinDelay) if isLive: - self.Toolbar.makeWidgetsInvisible(self.loop_list) + self.Toolbar.makeWidgetsInvisible(self.loopList) else: - self.Toolbar.makeWidgetsInvisible(self.song_edit_list) + self.Toolbar.makeWidgetsInvisible(self.songEditList) self.Mediabar.setVisible(False) QtCore.QObject.connect(Receiver.get_receiver(), - QtCore.SIGNAL(u'slidecontroller_%s_stop_loop' % self.type_prefix), + QtCore.SIGNAL(u'slidecontroller_%s_stop_loop' % self.typePrefix), self.onStopLoop) QtCore.QObject.connect(Receiver.get_receiver(), - QtCore.SIGNAL(u'slidecontroller_%s_first' % self.type_prefix), + QtCore.SIGNAL(u'slidecontroller_%s_first' % self.typePrefix), self.onSlideSelectedFirst) QtCore.QObject.connect(Receiver.get_receiver(), - QtCore.SIGNAL(u'slidecontroller_%s_next' % self.type_prefix), + QtCore.SIGNAL(u'slidecontroller_%s_next' % self.typePrefix), self.onSlideSelectedNext) QtCore.QObject.connect(Receiver.get_receiver(), - QtCore.SIGNAL(u'slidecontroller_%s_previous' % self.type_prefix), + QtCore.SIGNAL(u'slidecontroller_%s_previous' % self.typePrefix), self.onSlideSelectedPrevious) QtCore.QObject.connect(Receiver.get_receiver(), - QtCore.SIGNAL(u'slidecontroller_%s_next_noloop' % self.type_prefix), + QtCore.SIGNAL(u'slidecontroller_%s_next_noloop' % self.typePrefix), self.onSlideSelectedNextNoloop) QtCore.QObject.connect(Receiver.get_receiver(), QtCore.SIGNAL(u'slidecontroller_%s_previous_noloop' % - self.type_prefix), + self.typePrefix), self.onSlideSelectedPreviousNoloop) QtCore.QObject.connect(Receiver.get_receiver(), - QtCore.SIGNAL(u'slidecontroller_%s_last' % self.type_prefix), + QtCore.SIGNAL(u'slidecontroller_%s_last' % self.typePrefix), self.onSlideSelectedLast) QtCore.QObject.connect(Receiver.get_receiver(), - QtCore.SIGNAL(u'slidecontroller_%s_change' % self.type_prefix), + QtCore.SIGNAL(u'slidecontroller_%s_change' % self.typePrefix), self.onSlideChange) QtCore.QObject.connect(Receiver.get_receiver(), - QtCore.SIGNAL(u'slidecontroller_%s_set' % self.type_prefix), + QtCore.SIGNAL(u'slidecontroller_%s_set' % self.typePrefix), self.onSlideSelectedIndex) QtCore.QObject.connect(Receiver.get_receiver(), - QtCore.SIGNAL(u'slidecontroller_%s_blank' % self.type_prefix), + QtCore.SIGNAL(u'slidecontroller_%s_blank' % self.typePrefix), self.onSlideBlank) QtCore.QObject.connect(Receiver.get_receiver(), - QtCore.SIGNAL(u'slidecontroller_%s_unblank' % self.type_prefix), + QtCore.SIGNAL(u'slidecontroller_%s_unblank' % self.typePrefix), self.onSlideUnblank) QtCore.QObject.connect(Receiver.get_receiver(), - QtCore.SIGNAL(u'slidecontroller_%s_text_request' % self.type_prefix), + QtCore.SIGNAL(u'slidecontroller_%s_text_request' % self.typePrefix), self.onTextRequest) QtCore.QObject.connect(self.Splitter, QtCore.SIGNAL(u'splitterMoved(int, int)'), self.trackSplitter) QtCore.QObject.connect(Receiver.get_receiver(), QtCore.SIGNAL(u'config_updated'), self.refreshServiceItem) + if self.isLive: + QtCore.QObject.connect(Receiver.get_receiver(), + QtCore.SIGNAL(u'live_slide_cache'), self.slideCache) + else: + QtCore.QObject.connect(Receiver.get_receiver(), + QtCore.SIGNAL(u'preview_slide_cache'), self.slideCache) def widthChanged(self): """ @@ -404,16 +434,16 @@ class SlideController(QtGui.QWidget): self.Toolbar.setVisible(True) self.Mediabar.setVisible(False) self.Toolbar.makeWidgetsInvisible([u'Song Menu']) - self.Toolbar.makeWidgetsInvisible(self.loop_list) + self.Toolbar.makeWidgetsInvisible(self.loopList) if item.is_text(): - self.Toolbar.makeWidgetsInvisible(self.loop_list) + self.Toolbar.makeWidgetsInvisible(self.loopList) if QtCore.QSettings().value( self.parent.songsSettingsSection + u'/show songbar', QtCore.QVariant(True)).toBool() and len(self.slideList) > 0: self.Toolbar.makeWidgetsVisible([u'Song Menu']) if item.is_capable(ItemCapabilities.AllowsLoop) and \ len(item.get_frames()) > 1: - self.Toolbar.makeWidgetsVisible(self.loop_list) + self.Toolbar.makeWidgetsVisible(self.loopList) if item.is_media(): self.Toolbar.setVisible(False) self.Mediabar.setVisible(True) @@ -425,9 +455,9 @@ class SlideController(QtGui.QWidget): """ self.Toolbar.setVisible(True) self.Mediabar.setVisible(False) - self.Toolbar.makeWidgetsInvisible(self.song_edit_list) + self.Toolbar.makeWidgetsInvisible(self.songEditList) if item.is_capable(ItemCapabilities.AllowsEdit) and item.from_plugin: - self.Toolbar.makeWidgetsVisible(self.song_edit_list) + self.Toolbar.makeWidgetsVisible(self.songEditList) elif item.is_media(): self.Toolbar.setVisible(False) self.Mediabar.setVisible(True) @@ -569,8 +599,12 @@ class SlideController(QtGui.QWidget): self.enableToolBar(serviceItem) self.onSlideSelected() self.PreviewListWidget.setFocus() - Receiver.send_message(u'slidecontroller_%s_started' % self.type_prefix, + Receiver.send_message(u'slidecontroller_%s_started' % self.typePrefix, [serviceItem]) + if self.serviceItem.is_text(): + st = SlideThread( + self, self.isLive, len(self.serviceItem.get_frames())) + st.start() log.log(15, u'Display Rendering took %4s' % (time.time() - before)) def onTextRequest(self): @@ -591,7 +625,7 @@ class SlideController(QtGui.QWidget): (self.PreviewListWidget.currentRow() == framenumber) data.append(data_item) Receiver.send_message(u'slidecontroller_%s_text_response' - % self.type_prefix, data) + % self.typePrefix, data) #Screen event methods def onSlideSelectedFirst(self): @@ -708,6 +742,13 @@ class SlideController(QtGui.QWidget): % self.serviceItem.name.lower(), [self.serviceItem, self.isLive]) + def slideCache(self, slide): + """ + Generate a slide cache item rendered and ready for use + in the background. + """ + self.serviceItem.get_rendered_frame(int(slide)) + def onSlideSelected(self): """ Generate the preview when you click on a slide. @@ -737,7 +778,7 @@ class SlideController(QtGui.QWidget): if self.isLive: self.mainDisplay.frameView(frame, True) self.selectedRow = row - Receiver.send_message(u'slidecontroller_%s_changed' % self.type_prefix, + Receiver.send_message(u'slidecontroller_%s_changed' % self.typePrefix, row) def onSlideChange(self, row): @@ -746,7 +787,7 @@ class SlideController(QtGui.QWidget): """ self.PreviewListWidget.selectRow(row) self.updatePreview() - Receiver.send_message(u'slidecontroller_%s_changed' % self.type_prefix, + Receiver.send_message(u'slidecontroller_%s_changed' % self.typePrefix, row) def updatePreview(self):