566 lines
21 KiB
C++
566 lines
21 KiB
C++
//=============================================================================
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// MuseScore
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// Music Composition & Notation
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//
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// Copyright (C) 2002-2011 Werner Schweer
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License version 2
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// as published by the Free Software Foundation and appearing in
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// the file LICENCE.GPL
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//=============================================================================
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#include "utils.h"
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#include "score.h"
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#include "pitchspelling.h"
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#include "key.h"
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#include "staff.h"
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#include "note.h"
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#include "harmony.h"
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#include "segment.h"
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#include "undo.h"
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#include "keysig.h"
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#include "stafftype.h"
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#include "chord.h"
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#include "measure.h"
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#include "fret.h"
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#include "part.h"
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namespace Ms {
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//---------------------------------------------------------
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// keydiff2Interval
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// keysig - -7(Cb) - +7(C#)
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//---------------------------------------------------------
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static Interval keydiff2Interval(Key oKey, Key nKey, TransposeDirection dir)
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{
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static int stepTable[15] = {
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// C G D A E B Fis
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0, 4, 1, 5, 2, 6, 3,
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};
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int cofSteps; // circle of fifth steps
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int diatonic;
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if (nKey > oKey)
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cofSteps = int(nKey) - int(oKey);
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else
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cofSteps = 12 - (int(oKey) - int(nKey));
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diatonic = stepTable[(int(nKey) + 7) % 7] - stepTable[(int(oKey) + 7) % 7];
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if (diatonic < 0)
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diatonic += 7;
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diatonic %= 7;
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int chromatic = (cofSteps * 7) % 12;
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if ((dir == TransposeDirection::CLOSEST) && (chromatic > 6))
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dir = TransposeDirection::DOWN;
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if (dir == TransposeDirection::DOWN) {
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chromatic = chromatic - 12;
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diatonic = diatonic - 7;
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if (diatonic == -7)
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diatonic = 0;
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if (chromatic == -12)
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chromatic = 0;
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}
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qDebug("TransposeByKey %d -> %d chromatic %d diatonic %d", oKey, nKey, chromatic, diatonic);
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return Interval(diatonic, chromatic);
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}
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/*!
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* Transposes both pitch and spelling for a note given an interval.
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*
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* Uses addition for pitch and transposeTpc() for spelling.
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*
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* @param pitch
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* The initial (current) pitch. (pitch)
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* @param tpc
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* The initial spelling. (tpc)
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* @param rpitch
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* A pointer to the transposed pitch, calculated by this function. (pitch)
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* @param rtpc
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* A pointer to the transposed spelling. (tcp)
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* @param interval
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* The interval to transpose by.
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* @param useDoubleSharpsFlats
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* Determines whether the output may include double sharps or flats (Abb)
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* or should use an enharmonic pitch (Abb = G).
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*/
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void transposeInterval(int pitch, int tpc, int* rpitch, int* rtpc, Interval interval,
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bool useDoubleSharpsFlats)
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{
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*rpitch = pitch + interval.chromatic;
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*rtpc = transposeTpc(tpc, interval, useDoubleSharpsFlats);
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}
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/*!
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* Transposes a pitch spelling given an interval.
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*
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* This function transposes a pitch spelling using first
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* a diatonic transposition and then calculating any accidentals.
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* This insures that the note is changed by the correct number of
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* scale degrees unless it would require too many accidentals.
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*
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* @param tpc
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* The initial pitch spelling.
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* @param interval
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* The interval to be transposed by.
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* @param useDoubleSharpsFlats
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* Determines whether the output may include double sharps or flats (Abb)
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* or should use an enharmonic pitch (Abb = G).
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*
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* @return
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* The transposed pitch spelling (tpc).
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*/
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int transposeTpc(int tpc, Interval interval, bool useDoubleSharpsFlats)
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{
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if (tpc == Tpc::TPC_INVALID) // perfect unison & perfect octave
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return tpc;
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int minAlter;
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int maxAlter;
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if (useDoubleSharpsFlats) {
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minAlter = -2;
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maxAlter = 2;
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}
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else {
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minAlter = -1;
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maxAlter = 1;
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}
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int steps = interval.diatonic;
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int semitones = interval.chromatic;
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// qDebug("transposeTpc tpc %d steps %d semitones %d", tpc, steps, semitones);
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if (semitones == 0 && steps == 0)
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return tpc;
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int step;
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int alter;
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int pitch = tpc2pitch(tpc);
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for (int k = 0; k < 10; ++k) {
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step = tpc2step(tpc) + steps;
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while (step < 0)
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step += 7;
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step %= 7;
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int p1 = tpc2pitch(step2tpc(step, AccidentalVal::NATURAL));
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alter = semitones - (p1 - pitch);
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// alter = p1 + semitones - pitch;
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// if (alter < 0) {
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// alter *= -1;
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// alter = 12 - alter;
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// }
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while (alter < 0)
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alter += 12;
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alter %= 12;
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if (alter > 6)
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alter -= 12;
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if (alter > maxAlter)
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++steps;
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else if (alter < minAlter)
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--steps;
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else
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break;
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// qDebug(" again alter %d steps %d, step %d", alter, steps, step);
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}
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// qDebug(" = step %d alter %d tpc %d", step, alter, step2tpc(step, alter));
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return step2tpc(step, AccidentalVal(alter));
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}
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//---------------------------------------------------------
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// transposeTpcDiatonicByKey
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//
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// returns the tpc diatonically transposed by steps, using degrees of given key
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// option to keep any alteration tpc had with respect to unaltered corresponding degree of key
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// option to enharmonically reduce tpc using double alterations
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//---------------------------------------------------------
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int transposeTpcDiatonicByKey(int tpc, int steps, Key key, bool keepAlteredDegrees, bool useDoubleSharpsFlats)
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{
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if (tpc == Tpc::TPC_INVALID)
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return tpc;
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// get step for tpc with alteration for key
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int alter;
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int step = tpc2stepByKey(tpc, key, &alter);
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// transpose step and get tpc for step/key
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step += steps;
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int newTpc = step2tpcByKey(step, key);
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// if required, apply alteration to new tpc
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if(keepAlteredDegrees)
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newTpc += alter * TPC_DELTA_SEMITONE;
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// check results are in ranges
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while (newTpc > Tpc::TPC_MAX) newTpc -= TPC_DELTA_ENHARMONIC;
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while (newTpc < Tpc::TPC_MIN) newTpc += TPC_DELTA_ENHARMONIC;
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// if required, reduce double alterations
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if(!useDoubleSharpsFlats) {
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if(newTpc >= Tpc::TPC_F_SS) newTpc -= TPC_DELTA_ENHARMONIC;
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if(newTpc <= Tpc::TPC_B_BB) newTpc += TPC_DELTA_ENHARMONIC;
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}
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return newTpc;
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}
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//---------------------------------------------------------
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// transpose
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//---------------------------------------------------------
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void Score::transpose(Note* n, Interval interval, bool useDoubleSharpsFlats)
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{
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int npitch;
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int ntpc1, ntpc2;
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transposeInterval(n->pitch(), n->tpc1(), &npitch, &ntpc1, interval, useDoubleSharpsFlats);
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if (n->transposition()) {
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int p;
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transposeInterval(n->pitch() - n->transposition(), n->tpc2(), &p, &ntpc2, interval, useDoubleSharpsFlats);
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}
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else
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ntpc2 = ntpc1;
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undoChangePitch(n, npitch, ntpc1, ntpc2);
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}
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//---------------------------------------------------------
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// transpose
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//---------------------------------------------------------
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void Score::transpose(TransposeMode mode, TransposeDirection direction, Key trKey,
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int transposeInterval, bool trKeys, bool transposeChordNames, bool useDoubleSharpsFlats)
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{
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bool rangeSelection = selection().isRange();
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int startStaffIdx = 0;
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int startTick = 0;
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if (rangeSelection) {
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startStaffIdx = selection().staffStart();
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startTick = selection().tickStart();
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}
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Staff* st = staff(startStaffIdx);
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Interval interval;
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if (mode != TransposeMode::DIATONICALLY) {
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if (mode == TransposeMode::BY_KEY) {
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// calculate interval from "transpose by key"
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Key oKey = st->key(startTick);
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interval = keydiff2Interval(oKey, trKey, direction);
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}
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else {
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interval = intervalList[transposeInterval];
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if (direction == TransposeDirection::DOWN)
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interval.flip();
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}
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if (!rangeSelection) {
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trKeys = false;
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}
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bool fullOctave = (interval.chromatic % 12) == 0;
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if (fullOctave && (mode != TransposeMode::BY_KEY)) {
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trKeys = false;
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transposeChordNames = false;
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}
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}
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else { // diatonic transposition
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if (direction == TransposeDirection::DOWN)
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transposeInterval *= -1;
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}
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if (_selection.isList()) {
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foreach (Element* e, _selection.uniqueElements()) {
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if (e->staff()->staffType()->group() == StaffGroup::PERCUSSION)
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continue;
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if (e->type() == ElementType::NOTE) {
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Note* note = static_cast<Note*>(e);
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if (mode == TransposeMode::DIATONICALLY)
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note->transposeDiatonic(transposeInterval, trKeys, useDoubleSharpsFlats);
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else
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transpose(note, interval, useDoubleSharpsFlats);
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}
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else if ((e->type() == ElementType::HARMONY) && transposeChordNames) {
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Harmony* h = static_cast<Harmony*>(e);
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int rootTpc, baseTpc;
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if (mode == TransposeMode::DIATONICALLY) {
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int tick = 0;
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if (h->parent()->type() == ElementType::SEGMENT)
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tick = static_cast<Segment*>(h->parent())->tick();
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else if (h->parent()->type() == ElementType::FRET_DIAGRAM
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&& h->parent()->parent()->type() == ElementType::SEGMENT) {
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tick = static_cast<Segment*>(h->parent()->parent())->tick();
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}
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Key key = !h->staff() ? Key::C : h->staff()->key(tick);
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rootTpc = transposeTpcDiatonicByKey(h->rootTpc(),
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transposeInterval, key, trKeys, useDoubleSharpsFlats);
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baseTpc = transposeTpcDiatonicByKey(h->baseTpc(),
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transposeInterval, key, trKeys, useDoubleSharpsFlats);
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}
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else {
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rootTpc = transposeTpc(h->rootTpc(), interval, false);
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baseTpc = transposeTpc(h->baseTpc(), interval, false);
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}
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undoTransposeHarmony(h, rootTpc, baseTpc);
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}
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else if ((e->type() == ElementType::KEYSIG) && mode != TransposeMode::DIATONICALLY && trKeys) {
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KeySig* ks = static_cast<KeySig*>(e);
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Key key = st->key(ks->tick());
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KeySigEvent ke = ks->keySigEvent();
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ke.setKey(key);
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undo(new ChangeKeySig(ks, ke, ks->showCourtesy()));
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}
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}
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return;
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}
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//--------------------------
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// process range selection
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//--------------------------
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QList<Staff*> sl;
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for (int staffIdx = _selection.staffStart(); staffIdx < _selection.staffEnd(); ++staffIdx) {
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Staff* s = staff(staffIdx);
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if (s->staffType()->group() == StaffGroup::PERCUSSION) // ignore percussion staff
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continue;
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if (sl.contains(s))
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continue;
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bool alreadyThere = false;
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for (Staff* s2 : sl) {
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if (s2 == s || (s2->linkedStaves() && s2->linkedStaves()->staves().contains(s))) {
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alreadyThere = true;
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break;
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}
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}
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if (!alreadyThere)
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sl.append(s);
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}
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QList<int> tracks;
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for (Staff* s : sl) {
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int idx = s->idx() * VOICES;
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for (int i = 0; i < VOICES; ++i)
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tracks.append(idx + i);
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}
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Segment* s1 = _selection.startSegment();
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Segment* s2 = _selection.endSegment();
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for (Segment* segment = s1; segment && segment != s2; segment = segment->next1()) {
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for (int st : tracks) {
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if (staff(st/VOICES)->staffType()->group() == StaffGroup::PERCUSSION)
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continue;
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Element* e = segment->element(st);
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if (!e)
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continue;
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if (e->type() == ElementType::CHORD) {
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Chord* chord = static_cast<Chord*>(e);
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QList<Note*> nl = chord->notes();
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for (Note* n : nl) {
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if (mode == TransposeMode::DIATONICALLY)
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n->transposeDiatonic(transposeInterval, trKeys, useDoubleSharpsFlats);
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else
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transpose(n, interval, useDoubleSharpsFlats);
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}
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for (Chord* g : chord->graceNotes()) {
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for (Note* n : g->notes()) {
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if (mode == TransposeMode::DIATONICALLY)
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n->transposeDiatonic(transposeInterval, trKeys, useDoubleSharpsFlats);
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else
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transpose(n, interval, useDoubleSharpsFlats);
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}
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}
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}
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else if (e->type() == ElementType::KEYSIG && trKeys && mode != TransposeMode::DIATONICALLY) {
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KeySig* ks = static_cast<KeySig*>(e);
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Key nKey = transposeKey(ks->key(), interval);
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KeySigEvent ke = ks->keySigEvent();
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ke.setKey(nKey);
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undo(new ChangeKeySig(ks, ke, ks->showCourtesy()));
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}
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}
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if (transposeChordNames) {
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foreach (Element* e, segment->annotations()) {
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if ((e->type() != ElementType::HARMONY) || (!tracks.contains(e->track())))
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continue;
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Harmony* h = static_cast<Harmony*>(e);
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int rootTpc, baseTpc;
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if (mode == TransposeMode::DIATONICALLY) {
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int tick = segment->tick();
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Key key = !h->staff() ? Key::C : h->staff()->key(tick);
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rootTpc = transposeTpcDiatonicByKey(h->rootTpc(),
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transposeInterval, key, trKeys, useDoubleSharpsFlats);
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baseTpc = transposeTpcDiatonicByKey(h->baseTpc(),
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transposeInterval, key, trKeys, useDoubleSharpsFlats);
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}
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else {
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rootTpc = transposeTpc(h->rootTpc(), interval, false);
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baseTpc = transposeTpc(h->baseTpc(), interval, false);
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}
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undoTransposeHarmony(h, rootTpc, baseTpc);
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}
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}
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}
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}
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//---------------------------------------------------------
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// transposeKeys
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// key - -7(Cb) - +7(C#)
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//---------------------------------------------------------
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void Score::transposeKeys(int staffStart, int staffEnd, int tickStart, int tickEnd, const Interval& interval)
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{
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for (int staffIdx = staffStart; staffIdx < staffEnd; ++staffIdx) {
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Staff* st = staff(staffIdx);
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if (st->staffType()->group() == StaffGroup::PERCUSSION)
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continue;
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for (Segment* s = firstSegment(SegmentType::KeySig); s; s = s->next1(SegmentType::KeySig)) {
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if (s->tick() < tickStart)
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continue;
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if (s->tick() >= tickEnd)
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break;
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KeySig* ks = static_cast<KeySig*>(s->element(staffIdx * VOICES));
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if (ks) {
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Key key = st->key(s->tick());
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Key nKey = transposeKey(key, interval);
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KeySigEvent ke(nKey);
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undo(new ChangeKeySig(ks, ke, ks->showCourtesy()));
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}
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}
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}
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}
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//---------------------------------------------------------
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// transposeSemitone
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//---------------------------------------------------------
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void Score::transposeSemitone(int step)
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{
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if (step == 0)
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return;
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if (step > 1)
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step = 1;
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if (step < -1)
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step = -1;
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TransposeDirection dir = step > 0 ? TransposeDirection::UP : TransposeDirection::DOWN;
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int keyType = int(staff(0)->key(0)) + 7; // ??
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int intervalList[15][2] = {
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// up - down
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{ 1, 1 }, // Cb
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{ 1, 1 }, // Gb
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{ 1, 1 }, // Db
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{ 1, 1 }, // Ab
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{ 1, 1 }, // Eb
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{ 1, 1 }, // Bb
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{ 1, 1 }, // F
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{ 1, 1 }, // C
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{ 1, 1 }, // G
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{ 1, 1 }, // D
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{ 1, 1 }, // A
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{ 1, 1 }, // E
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{ 1, 1 }, // B
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{ 1, 1 }, // F#
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{ 1, 1 } // C#
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};
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int interval = intervalList[keyType][step > 0 ? 0 : 1];
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cmdSelectAll();
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startCmd();
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transpose(TransposeMode::BY_INTERVAL, dir, Key::C, interval, true, true, false);
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deselectAll();
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setLayoutAll(true);
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endCmd();
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}
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//---------------------------------------------------------
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// Note::transposeDiatonic
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//---------------------------------------------------------
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void Note::transposeDiatonic(int interval, bool keepAlterations, bool useDoubleAccidentals)
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{
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// compute note current absolute step
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int alter1;
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int alter2;
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int tick = chord()->segment()->tick();
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Key key = !staff() ? Key::C : staff()->key(tick);
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int absStep1 = pitch2absStepByKey(pitch(), tpc1(), key, &alter1);
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int absStep2 = pitch2absStepByKey(pitch()-transposition(), tpc2(), key, &alter2);
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// get pitch and tcp corresponding to unaltered degree for this key
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int newPitch = absStep2pitchByKey(absStep1 + interval, key);
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int newTpc1 = step2tpcByKey((absStep1 + interval) % STEP_DELTA_OCTAVE, key);
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int newTpc2 = step2tpcByKey((absStep2 + interval) % STEP_DELTA_OCTAVE, key);
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// if required, transfer original degree alteration to new pitch and tpc
|
|
if (keepAlterations) {
|
|
newPitch += alter1;
|
|
newTpc1 += alter1 * TPC_DELTA_SEMITONE;
|
|
newTpc2 += alter2 * TPC_DELTA_SEMITONE;
|
|
}
|
|
|
|
// check results are in ranges
|
|
while (newPitch > 127)
|
|
newPitch -= PITCH_DELTA_OCTAVE;
|
|
while (newPitch < 0)
|
|
newPitch += PITCH_DELTA_OCTAVE;
|
|
while (newTpc1 > Tpc::TPC_MAX)
|
|
newTpc1 -= TPC_DELTA_ENHARMONIC;
|
|
while (newTpc1 < Tpc::TPC_MIN)
|
|
newTpc1 += TPC_DELTA_ENHARMONIC;
|
|
while (newTpc2 > Tpc::TPC_MAX)
|
|
newTpc2 -= TPC_DELTA_ENHARMONIC;
|
|
while (newTpc2 < Tpc::TPC_MIN)
|
|
newTpc2 += TPC_DELTA_ENHARMONIC;
|
|
|
|
// if required, reduce double alterations
|
|
if (!useDoubleAccidentals) {
|
|
if (newTpc1 >= Tpc::TPC_F_SS)
|
|
newTpc1 -= TPC_DELTA_ENHARMONIC;
|
|
if (newTpc1 <= Tpc::TPC_B_BB)
|
|
newTpc1 += TPC_DELTA_ENHARMONIC;
|
|
if (newTpc2 >= Tpc::TPC_F_SS)
|
|
newTpc2 -= TPC_DELTA_ENHARMONIC;
|
|
if (newTpc2 <= Tpc::TPC_B_BB)
|
|
newTpc2 += TPC_DELTA_ENHARMONIC;
|
|
}
|
|
|
|
// store new data
|
|
score()->undoChangePitch(this, newPitch, newTpc1, newTpc2);
|
|
}
|
|
|
|
//---------------------------------------------------------
|
|
// transpositionChanged
|
|
//---------------------------------------------------------
|
|
|
|
void Score::transpositionChanged(Part* part)
|
|
{
|
|
// TODO: grace notes
|
|
|
|
for (Segment* s = firstSegment(SegmentType::ChordRest); s; s = s->next1(SegmentType::ChordRest)) {
|
|
for (Staff* st : *part->staves()) {
|
|
if (st->staffType()->group() == StaffGroup::PERCUSSION)
|
|
continue;
|
|
int t1 = st->idx() * VOICES;
|
|
int t2 = t1 + VOICES;
|
|
for (int track = t1; track < t2; ++track) {
|
|
Chord* c = static_cast<Chord*>(s->element(track));
|
|
if (c && c->type() == ElementType::CHORD) {
|
|
for (Note* n : c->notes()) {
|
|
int tpc = n->tpc2default(n->pitch());
|
|
n->undoSetTpc2(tpc);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
cmdUpdateNotes(); // DEBUG
|
|
}
|
|
}
|
|
|