Source code for csengine.slides

from .globals import ActivePlugin
from .stack import Stack
from . import globals
from . import audiochannel



[docs]
class Slides:

    inputAudioChannel = None
    overlayAudioChannels = [None] * 3

    def __init__(self):
        self.slidesList = []
        initialStack = Stack(self, name="Classroom 1")
        self.slidesList.append(initialStack)
        ActivePlugin.active_slide = initialStack
        self.slideNumber = len(self.slidesList)


[docs]
    def initAudio(self):
        self.inputAudioChannel = audiochannel.AudioChannel("input")
        self.inputAudioChannel.activeStack = ActivePlugin.active_slide

        self.overlayAudioChannels[0] = audiochannel.AudioChannel("output", 0)
        self.overlayAudioChannels[1] = audiochannel.AudioChannel("output", 1)
        self.overlayAudioChannels[2] = audiochannel.AudioChannel("output", 2)



[docs]
    def addSlide(self):
        self.slideNumber += 1
        slide = Stack(self, name="Classroom " + str(self.slideNumber))
        self.slidesList.append(slide)

        #deactivate Audio for the current slide
        for plugin in ActivePlugin.active_slide.stackList:
            plugin.writerEvent.clear()

        globals.AUDIO_THREAD.setReRoute(False)
        ActivePlugin.active_slide = self.slidesList[len(self.slidesList) - 1]
        slide.updateStackButtons()



[docs]
    def removeSlide(self, index):
        # if index == 0:
        #     return
        self.slideNumber -= 1
        if index < len(self.slidesList):

            #loop through stack and unregister audio
            stack = self.slidesList[index]
            for plugin in stack.stackList:
                plugin.stop()
                plugin.audioOverlayChannel = None
                plugin.writerEvent.set()

            del self.slidesList[index]
        else:
            return False




[docs]
    def shutdown(self):
        for slide in self.slidesList:
            slide.shutdown = True
            for plugin in slide.stackList:

                plugin.writerEvent.set()
                plugin.audioOverlayChannel = None
                plugin.stop()

        for channel in self.overlayAudioChannels:
            channel.shutdown = True



[docs]
    def makeSelectionActive(self, index):

        #loop through stack and deactivate audio
        for plugin in ActivePlugin.active_slide.stackList:
            plugin.writerEvent.clear()


        if index < len(self.slidesList):
            ActivePlugin.active_slide = self.slidesList[index]
            ActivePlugin.active_slide.updateStackButtons()
            self.inputAudioChannel = ActivePlugin.active_slide

            globals.AUDIO_THREAD.setReRoute(False)

            # loop through new stack and activate audio
            for plugin in ActivePlugin.active_slide.stackList:
                plugin.writerEvent.set()
                if plugin.audioReRoute:
                    chNr = plugin.audioOverlayChannel.channelNr
                    globals.AUDIO_THREAD.setReRoute(True, chNr)



[docs]
    def makeNewInstance(self, pluginObject):
        pass



[docs]
    def addPluginToActiveStack(self, pluginObject):
        pass