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196 lines
10 KiB
196 lines
10 KiB
#! /usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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Copyright 2021, Nils Hilbricht, Germany ( https://www.hilbricht.net )
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This file is part of the Laborejo Software Suite ( https://www.laborejo.org ),
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This application is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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import logging; logger = logging.getLogger(__name__); logger.info("import")
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#Standard Library Modules
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from typing import List, Set, Dict, Tuple
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#Third Party Modules
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#Template Modules
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import template.engine.sequencer
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#Our modules
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from .pattern import Pattern
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class Track(object): #injection at the bottom of this file!
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"""The pattern is same as the track, even if the GUI does not represent it that way
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Init parameters are for cloned and copied tracks, but not for loading from json.
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"""
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def __init__(self, parentData,
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name:str="",
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structure:Set[int]=None,
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scale:Tuple[int]=None,
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color:str=None,
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whichPatternsAreScaleTransposed:Dict[int,int]=None,
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whichPatternsAreHalftoneTransposed:Dict[int,int]=None,
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simpleNoteNames:List[str]=None):
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self.parentData = parentData
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self.sequencerInterface = template.engine.sequencer.SequencerInterface(parentTrack=self, name=name) #needs parentData
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self.color = color if color else "#00FFFF" # "#rrggbb" in hex. no alpha. a convenience slot for the GUI to save a color.
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#2.0
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#The distinction between Track and Pattern in our code is artificial, it is the same thing,
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#we take inspiration from the GUI that presents the Track on its own.
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#The following setting is most likely to be found in the track sub-window:
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self.patternLengthMultiplicator = 1 #int. >= 1 the multiplicator is added after all other calculations, like subdivions. We can't integrate this into howManyUnits because that is the global score value
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self.midiChannel = 0 # 0-15 midi channel is always set.
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#2.1
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self.group = "" # "" is a standalone track, the normal one which existed since version 1.0. Using a name here will group these tracks together. A GUI can use this information. Also all tracks in a group share a single jack out port.
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self.visible = True #only used together with groups. the api and our Datas setGroup function take care that standalone tracks are never hidden.
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self.pattern = Pattern(parentTrack=self, scale=scale, simpleNoteNames=simpleNoteNames)
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self.structure = structure if structure else set() #see buildTrack(). This is the main track data structure besides the pattern. Just integers (starts at 0) as switches which are positions where to play the patterns. In between are automatic rests.
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self.whichPatternsAreScaleTransposed = whichPatternsAreScaleTransposed if whichPatternsAreScaleTransposed else {} #position:integers between -7 and 7. Reversed pitch, row based: -7 is higher than 7!!
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self.whichPatternsAreHalftoneTransposed = whichPatternsAreHalftoneTransposed if whichPatternsAreHalftoneTransposed else {} #position:integers between -7 and 7. Reversed pitch, row based: -7 is higher than 7!!
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self._processAfterInit()
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@property
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def cboxMidiOutAbstraction(self):
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"""Returns the real cbox midi out for standalone tracks and the bus one for groups"""
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if self.group:
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return self.parentData.groups[self.group].cboxMidiOutUuid
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else:
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return self.sequencerInterface.cboxMidiOutUuid
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def _processAfterInit(self):
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pass
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def buildTrack(self):
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"""The goal is to create a cbox-track, consisting of cbox-clips which hold cbox-pattern,
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generated with our own note data. The latter happens in structures_pattern.
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This is called after every small change.
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"""
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if self.group:
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#We still have an inactive sequencerinterface but instead we use the group ones as subtrack.
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ourCalfboxTrack = self.parentData.groups[self.group]._subtracks[id(self)].calfboxSubTrack
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else:
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ourCalfboxTrack = self.sequencerInterface.calfboxTrack
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assert ourCalfboxTrack, (self, self.group, self.parentData, self.sequencerInterface)
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#First clean the transpositions of zeroes
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self.whichPatternsAreScaleTransposed = {k:v for k,v in self.whichPatternsAreScaleTransposed.items() if v!=0 and k in self.structure}
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self.whichPatternsAreHalftoneTransposed = {k:v for k,v in self.whichPatternsAreHalftoneTransposed.items() if v!=0 and k in self.structure}
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oneMeasureInTicks = (self.parentData.howManyUnits * self.parentData.whatTypeOfUnit) / self.parentData.subdivisions #subdivisions is 1 by default. bigger values mean shorter values, which is compensated by the user setting bigger howManyUnits manually.
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oneMeasureInTicks = int(oneMeasureInTicks) * self.patternLengthMultiplicator
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filteredStructure = [index for index in sorted(self.structure) if index < self.parentData.numberOfMeasures] #not <= because we compare count with range
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cboxclips = [o.clip for o in ourCalfboxTrack.status().clips]
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globalOffset = self.parentData.cachedOffsetInTicks
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for cboxclip in cboxclips:
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cboxclip.delete() #removes itself from the track
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for index in filteredStructure:
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scaleTransposition = self.whichPatternsAreScaleTransposed[index] if index in self.whichPatternsAreScaleTransposed else 0
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halftoneTransposition = self.whichPatternsAreHalftoneTransposed[index] if index in self.whichPatternsAreHalftoneTransposed else 0
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cboxPattern = self.pattern.buildPattern(scaleTransposition, halftoneTransposition, self.parentData.howManyUnits, self.parentData.whatTypeOfUnit, self.parentData.subdivisions, self.patternLengthMultiplicator)
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r = ourCalfboxTrack.add_clip(globalOffset + index*oneMeasureInTicks, 0, oneMeasureInTicks, cboxPattern) #pos, pattern-internal offset, length, pattern.
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######Old optimisations. Keep for later####
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##########################################
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#if changeClipsInPlace: #no need for track.buildTrack. Very cheap pattern exchange.
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# cboxclips = [o.clip for o in self.parentTrack.sequencerInterface.calfboxTrack.status().clips]
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# for cboxclip in cboxclips:
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# cboxclip.set_pattern(self.cboxPattern[cboxclip.patroneoScaleTransposed])
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#Save / Load / Export
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def serialize(self)->dict:
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return {
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"sequencerInterface" : self.sequencerInterface.serialize(),
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"color" : self.color,
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"structure" : list(self.structure),
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"pattern" : self.pattern.serialize(),
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"whichPatternsAreScaleTransposed" : self.whichPatternsAreScaleTransposed,
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"whichPatternsAreHalftoneTransposed" : self.whichPatternsAreHalftoneTransposed,
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"patternLengthMultiplicator" : self.patternLengthMultiplicator,
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"midiChannel" : self.midiChannel,
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"group" : self.group,
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"visible" : self.visible,
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}
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@classmethod
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def instanceFromSerializedData(cls, parentData, serializedData):
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self = cls.__new__(cls)
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self.parentData = parentData
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self.sequencerInterface = template.engine.sequencer.SequencerInterface.instanceFromSerializedData(self, serializedData["sequencerInterface"])
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#Version 2.0+ changes
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if "patternLengthMultiplicator" in serializedData:
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self.patternLengthMultiplicator = serializedData["patternLengthMultiplicator"]
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else:
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self.patternLengthMultiplicator = 1
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if "midiChannel" in serializedData:
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self.midiChannel = serializedData["midiChannel"]
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else:
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self.midiChannel = 0
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if "group" in serializedData:
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self.group = serializedData["group"]
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else:
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self.group = "" #standalone track
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if "visible" in serializedData:
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self.visible = serializedData["visible"]
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else:
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self.visible = True
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self.color = serializedData["color"]
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self.structure = set(serializedData["structure"])
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self.whichPatternsAreHalftoneTransposed = {int(k):int(v) for k,v in serializedData["whichPatternsAreHalftoneTransposed"].items()} #json saves dict keys as strings
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self.whichPatternsAreScaleTransposed = {int(k):int(v) for k,v in serializedData["whichPatternsAreScaleTransposed"].items()} #json saves dict keys as strings
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self.pattern = Pattern.instanceFromSerializedData(parentTrack=self, serializedData=serializedData["pattern"] )
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self._processAfterInit()
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return self
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def export(self)->dict:
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return {
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"id" : id(self),
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"sequencerInterface" : self.sequencerInterface.export(),
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"color" : self.color,
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"structure" : sorted(self.structure),
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"patternBaseLength" : self.parentData.howManyUnits, #for convenient access
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"patternLengthMultiplicator" : self.patternLengthMultiplicator, #int
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"pattern": self.pattern.exportCache,
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"scale": self.pattern.scale,
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"numberOfSteps": self.pattern.numberOfSteps, #pitches. Convenience for len(scale)
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"simpleNoteNames": self.pattern.simpleNoteNames,
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"numberOfMeasures": self.parentData.numberOfMeasures,
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"whichPatternsAreScaleTransposed": self.whichPatternsAreScaleTransposed,
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"whichPatternsAreHalftoneTransposed": self.whichPatternsAreHalftoneTransposed,
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"midiChannel" : self.midiChannel+1, #1-16
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"group" : self.group, #string
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"visible" : self.visible, #bool. Always True for standalone tracks
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}
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#Dependency Injections.
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template.engine.sequencer.Score.TrackClass = Track #Score will look for Track in its module.
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