action.h

/*
 * Copyright © 2017-2023 Synthstrom Audible Limited
 *
 * This file is part of The Synthstrom Audible Deluge Firmware.
 *
 * The Synthstrom Audible Deluge Firmware is free software: you can redistribute it and/or modify it under the
 * terms of the GNU General Public License as published by the Free Software Foundation,
 * either version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program.
 * If not, see <https://www.gnu.org/licenses/>.
 */
 
#pragma once
 
#include "definitions_cxx.hpp"
#include "model/scale/note_set.h"
#include <cstdint>
 
class Consequence;
class InstrumentClip;
class ParamCollection;
class Sound;
class AutoParam;
class ConsequenceParamChange;
class Note;
class ActionClipState;
class UI;
class Instrument;
class ClipInstance;
class Song;
class Output;
class Clip;
class ClipArray;
class AudioClip;
class NoteVector;
class ModelStackWithAutoParam;
class ModelStack;
 
enum class ActionType {
    MISC,
    NOTE_EDIT,
    NOTE_TAIL_EXTEND,
    CLIP_LENGTH_INCREASE,
    CLIP_LENGTH_DECREASE,
    RECORD,
    AUTOMATION_DELETE,
    PARAM_UNAUTOMATED_VALUE_CHANGE,
    SWING_CHANGE,
    TEMPO_CHANGE,
    CLIP_MULTIPLY,
    CLIP_CLEAR,
    CLIP_DELETE,
    NOTES_PASTE,
    PATTERN_PASTE,
    AUTOMATION_PASTE,
    CLIP_INSTANCE_EDIT,
    ARRANGEMENT_TIME_EXPAND,
    ARRANGEMENT_TIME_CONTRACT,
    ARRANGEMENT_CLEAR,
    ARRANGEMENT_RECORD,
    CLIP_HORIZONTAL_SHIFT,
    NOTE_NUDGE,
    NOTE_REPEAT_EDIT,
    EUCLIDEAN_NUM_EVENTS_EDIT,
    NOTEROW_ROTATE,
    NOTEROW_LENGTH_EDIT,
    NOTEROW_HORIZONTAL_SHIFT,
};
 
class Action {
public:
    Action(ActionType newActionType);
    void addConsequence(Consequence* consequence);
    Error revert(TimeType time, ModelStack* modelStack);
    bool containsConsequenceParamChange(ParamCollection* paramCollection, int32_t paramId);
    void recordParamChangeIfNotAlreadySnapshotted(ModelStackWithAutoParam const* modelStack, bool stealData = false);
    void recordParamChangeDefinitely(ModelStackWithAutoParam const* modelStack, bool stealData);
    Error recordNoteArrayChangeIfNotAlreadySnapshotted(InstrumentClip* clip, int32_t noteRowId, NoteVector* noteVector,
                                                       bool stealData, bool moveToFrontIfAlreadySnapshotted = false);
    Error recordNoteArrayChangeDefinitely(InstrumentClip* clip, int32_t noteRowId, NoteVector* noteVector,
                                          bool stealData);
    bool containsConsequenceNoteArrayChange(InstrumentClip* clip, int32_t noteRowId, bool moveToFrontIfFound = false);
    void recordNoteExistenceChange(InstrumentClip* clip, int32_t noteRowId, Note* note, ExistenceChangeType type);
    void recordNoteChange(InstrumentClip* clip, int32_t noteRowId, Note* note, int32_t lengthAfter,
                          int32_t velocityAfter, int32_t probabilityAfter);
    void updateYScrollClipViewAfter(InstrumentClip* clip = nullptr);
    void recordClipInstanceExistenceChange(Output* output, ClipInstance* clipInstance, ExistenceChangeType type);
    void prepareForDestruction(int32_t whichQueueActionIn, Song* song);
    void recordClipLengthChange(Clip* clip, int32_t oldLength);
    bool recordClipExistenceChange(Song* song, ClipArray* clipArray, Clip* clip, ExistenceChangeType type);
    void recordAudioClipSampleChange(AudioClip* clip);
    void deleteAllConsequences(int32_t whichQueueActionIn, Song* song, bool destructing = false);
 
    ActionType type;
    bool openForAdditions;
 
    // A bunch of snapshot-things here store their state both before or after the action - because the action could have
    // changed these
    int32_t xScrollClip[2];
    int32_t yScrollSongView[2];
    int32_t xZoomClip[2];
 
    int32_t xScrollArranger[2];
    int32_t yScrollArranger[2];
    int32_t xZoomArranger[2];
 
    NoteSet modeNotes[2];
 
    // And a few more snapshot-things here only store one state - at the time of the action, because the action could
    // not change these things
    uint8_t modKnobModeSongView;
    bool affectEntireSongView;
 
    bool tripletsOn;
    uint32_t tripletsLevel;
 
    // bool inKeyboardView;
 
    UI* view;
 
    Clip* currentClip; // Watch out - this might get set to NULL
 
    int32_t posToClearArrangementFrom;
 
    Action* nextAction;
    Consequence* firstConsequence;
 
    // We store these kinds of consequences separately because we need to be able to search through them fast, when
    // there may be a large number of other kinds of consequences. Also, these don't need re-ordering each time we
    // revert
    ConsequenceParamChange* firstParamConsequence;
 
    ActionClipState* clipStates;
 
    uint32_t creationTime;
 
    int32_t numClipStates;
 
    int8_t offset; // Recorded for the purpose of knowing when we can do those "partial undos"
 
private:
};