sound.py 文件源码

def execute(self, context):
        selection = bpy.context.selected_sequences
        if not selection:
            selection = bpy.context.sequences

        sequences = [s for s in selection if s.type in SequenceTypes.SOUND]

        if not sequences:
            self.report({"ERROR_INVALID_INPUT"}, "Select at least one sound strip")
            return {'CANCELLED'}

        show_waveform = None
        if self.mode == 'auto':
            from operator import attrgetter
            show_waveform = not sorted(sequences, key=attrgetter('frame_final_start'))[0].show_waveform
        else:
            show_waveform = True if self.mode == 'on' else False

        for s in sequences:
            s.show_waveform = show_waveform
        return {'FINISHED'}