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JMusic - Java Music Library
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/*
Copyright (C) 2000 Andrew Sorensen & Andrew Brown
This program 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 2 of the License, or 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package jm.music.data;
import jm.JMC;
import java.io.Serializable;
import java.util.Enumeration;
import java.util.Vector;
/**
* The Part class is representative of a single instrumental part.
* An Part is made up of a number of Phrase objects, and
* Parts in turn are contained by Score objects which form the
* highest level in the jMusic data structure. Parts are added to
* Score objects like this...
*
* Score score = new Score("Concerto for Solo Clarinet");
* Part inst = new Part("Clarinet");
* score.addPart(inst);
*
*
* @author Andrew Sorensen
* @version 1.0, Sun Feb 25 18:43:32 2001
* @see Score
* @see Phrase
*/
public class Part implements Cloneable, Serializable, JMC {
//----------------------------------------------
// Defaults
//----------------------------------------------
public static final String DEFAULT_TITLE = "Untitled Part";
public static final int DEFAULT_INSTRUMENT = 0;
public static final int DEFAULT_CHANNEL = 0;
public static final double DEFAULT_TEMPO = Phrase.DEFAULT_TEMPO;
public static final int DEFAULT_KEY_SIGNATURE = JMC.NO_KEY_SIGNATURE;
public static final int DEFAULT_KEY_QUALITY = JMC.NO_KEY_QUALITY;
public static final int DEFAULT_NUMERATOR = JMC.NO_NUMERATOR;
public static final int DEFAULT_DENOMINATOR = JMC.NO_DENOMINATOR;
public static final double DEFAULT_PAN = Note.DEFAULT_PAN;
//----------------------------------------------
// Attributes
//----------------------------------------------
/**
* The stereo (quad etc.) postion of all notes in this part.
*/
private double pan = DEFAULT_PAN;
/**
* A container holding phrase objects
*/
private Vector phraseList;
/**
* The title of this Part
*/
private String title = "Unamed Part";
/**
* The channel on which this part is to be played
*/
private int channel;
/**
* Optional instrument number/ MIDI program change to apply to this Part
*/
private int instrument;
/**
* the speed for this part
*/
private double tempo;
/**
* break points
*/
private double[] points = null;
private long[] time = null;
private int timeIndex = 0;
// Possible Alternative:
// Consider using the jm.music.data.KeySignature class and modifying
// it to support the keyQuality field.
/**
* A reference to the Score containing this part
*/
private Score myScore = null;
/**
* the number of accidents this part
* -1 is One Flat, 1 is One Sharp
*/
private int keySignature;
/**
* 0 = major, 1 = minor, others modes not specified
*/
private int keyQuality;
/**
* the top number of the time signature
*/
// Possible Alternative:
// Consider making a TimeSignature class, containing the following
// two fields.
private int numerator;
/**
* the bottom number of the time signature
*/
private int denominator;
//----------------------------------------------
// Constructors
//----------------------------------------------
/**
* Creates an empty Part
*/
public Part() {
this(DEFAULT_TITLE);
}
/**
* Creates an empty Part
*
* @param String title the title of the Part
*/
public Part(String title) {
this(title, DEFAULT_INSTRUMENT);
}
/**
* Creates an empty Part
*
* @param int instrument the instrument number for this Part
*/
public Part(int instrument) {
this("", instrument);
}
/**
* Creates an empty Part
*
* @param String title the title of the Part
* @param int instrument
*/
public Part(String title, int instrument) {
this(title, instrument, DEFAULT_CHANNEL);
}
/**
* Creates an empty Part
*
* @param int instrument The instrument number for this Part
* @param int channel The channel number for the part - only required for MIDI writing
*/
public Part(int instrument, int channel) {
this("", instrument, channel);
}
/**
* Creates an empty Part
*
* @param String title the title of the Part
* @param int instrument
* @param int channel
*/
public Part(String title, int instrument, int channel) {
this.title = title;
this.phraseList = new Vector();
if (this.channel > 16) {
System.err.println(new Exception(
"jMusic Warning: A MIDI Channel "
+ "cannot be greater than 16. "
+ "There can be any number of Audio channels."
));
(new Exception()).printStackTrace();
//System.exit(1);
}
this.channel = channel;
if (instrument < NO_INSTRUMENT) {
System.err.println(new Exception(
"jMusic EXCEPTION: instrument "
+ "value must be greater than 0"
));
(new Exception()).printStackTrace();
System.exit(1); //crash ungracefully
}
this.instrument = instrument;
this.tempo = DEFAULT_TEMPO;
this.keySignature = DEFAULT_KEY_SIGNATURE;
this.keyQuality = DEFAULT_KEY_QUALITY;
this.numerator = DEFAULT_NUMERATOR;
this.denominator = DEFAULT_DENOMINATOR;
}
/**
* Constructs a Part containing the specified phrase.
*
* @param phrase Phrase to be contained in the Part
*/
public Part(Phrase phrase) {
this();
phrase.setMyPart(this);
addPhrase(phrase);
this.setTempo(phrase.getTempo());
}
/**
* Constructs a Part containing the specified phrase.
*
* @param String Title of the Part
* @param int The instrument number
* @param phrase Phrase to be contained in the Part
*/
public Part(String title, int instrument, Phrase phrase) {
this(title, instrument, DEFAULT_CHANNEL, phrase);
this.setTempo(phrase.getTempo());
}
/**
* Constructs a Part containing the specified phrase.
*
* @param String Title of the Part
* @param int The instrument number
* @param int The channel number
* @param phrase Phrase to be contained in the Part
*/
public Part(String title, int instrument, int channel, Phrase phrase) {
this(title, instrument, channel);
phrase.setMyPart(this);
addPhrase(phrase);
this.setTempo(phrase.getTempo());
}
/**
* Constructs a Part containing the specified phrases.
*
* @param phrases array of Phrases to be contained in the Score
*/
public Part(Phrase[] phrases) {
this();
addPhraseList(phrases);
}
/**
* Constructs a Part containing the specified cphrase.
*
* @param cphrase CPhrase to be contained in the Score
*/
public Part(CPhrase cphrase) {
this();
addCPhrase(cphrase);
}
/**
* Constructs a Part containing the specified phrase with the
* specified title.
*
* @param phrase Phrase to be contained in the Part
* @param title String describing the title of the Part
*/
public Part(Phrase phrase, String title) {
this(title);
addPhrase(phrase);
this.setTempo(phrase.getTempo());
}
/**
* Constructs a Part containing the specified phrase with the
* specified title.
*
* @param phrases array of Phrases to be contained in the Score
* @param title String describing the title of the Part
*/
public Part(Phrase[] phrases, String title) {
this(title);
addPhraseList(phrases);
}
/**
* Constructs a Part containing the specified phrase with the
* specified title and with the timbre of the specified
* instrument.
*
* @param phrase Phrase to be contained in the Part
* @param title String describing the title of the Part
* @param instrument integer describing the MIDI instrument number
*/
public Part(Phrase phrase, String title, int instrument) {
this(title, instrument);
addPhrase(phrase);
this.setTempo(phrase.getTempo());
}
/**
* Constructs a Part containing the specified phrase with the
* specified title and with the timbre of the specified
* instrument.
*
* @param phrases array of Phrases to be contained in the Score
* @param title String describing the title of the Part
* @param instrument integer describing the MIDI instrument number
*/
public Part(Phrase[] phrases, String title, int instrument) {
this(title, instrument);
addPhraseList(phrases);
}
/**
* Constructs a Part containing the specified phrase with the
* specified title, with the timbre of the specified
* instrument and using the specified MIDI channel.
*
* @param phrase Phrase to be contained in the Part
* @param title String describing the title of the Part
* @param instrument integer describing the MIDI instrument number
* @param channel integer describing the MIDI channel
*/
public Part(Phrase phrase, String title, int instrument, int channel) {
this(title, instrument, channel);
addPhrase(phrase);
this.setTempo(phrase.getTempo());
}
/**
* Constructs a Part containing the specified phrase with the
* specified title, with the timbre of the specified
* instrument and using the specified MIDI channel.
*
* @param phrases array of Phrases to be contained in the Score
* @param title String describing the title of the Part
* @param instrument integer describing the MIDI instrument number
* @param channel integer describing the MIDI channel
*/
public Part(Phrase[] phrases, String title, int instrument, int channel) {
this(title, instrument, channel);
addPhraseList(phrases);
}
private static void swap(Phrase[] phrases, final int i, final int j) {
Phrase temp = phrases[i];
phrases[i] = phrases[j];
phrases[j] = temp;
}
//----------------------------------------------
// Data Methods
//----------------------------------------------
/**
* Get an individual phrase object from its number
*
* @param int number - the number of the Track to return
* @return phrase answer - the phrase to return
*/
public Phrase getPhrase(int number) {
Enumeration enum1 = phraseList.elements();
int counter = 0;
while (enum1.hasMoreElements()) {
Phrase phrase = (Phrase) enum1.nextElement();
if (counter == number) {
return phrase;
}
counter++;
}
return null;
}
/**
* Add a phrase to this Part
*
* @param Phrase phrase - add a phrase to this Part
*/
public void add(Phrase phrase) {
this.addPhrase(phrase);
}
/**
* Add a phrase to this Part
* Phrases with a 'true' append flag are added to the end of the part.
*
* @param Phrase phrase - add a phrase to this Part
*/
public void addPhrase(Phrase phrase) {
phrase.setMyPart(this);
if (phrase.getAppend()) phrase.setStartTime(this.getEndTime());
this.phraseList.addElement(phrase);
}
/**
* Add a copy of a phrase to the end of this Part
*
* @param Phrase the phrase to add
*/
public void appendPhrase(Phrase phrase) {
Phrase newPhrase = phrase.copy();
newPhrase.setStartTime(this.getEndTime());
this.addPhrase(newPhrase);
}
/**
* Adds multiple phrases to the part from an array of phrases
*
* @param phraseArray
*/
public void addPhraseList(Phrase[] phraseArray) {
for (int i = 0; i < phraseArray.length; i++) {
if (phraseArray[i].getAppend()) {
Phrase newPhrase = phraseArray[i].copy();
newPhrase.setStartTime(this.getEndTime());
this.addPhrase(newPhrase);
} else this.addPhrase(phraseArray[i]);
}
}
/**
* Deletes the specified phrase in the part
*
* @param int noteNumb the index of the note to be deleted
*/
public void removePhrase(int phraseNumb) {
Vector vct = (Vector) this.phraseList;
try {
vct.removeElement(vct.elementAt(phraseNumb));
} catch (RuntimeException re) {
System.err.println("The Phrase index to be deleted must be within the part.");
}
}
/**
* Deletes the first occurence of the specified phrase in the Part.
*
* @param phrase the Phrase object to be deleted.
*/
public void removePhrase(Phrase phrase) {
this.phraseList.removeElement(phrase);
}
/**
* Deletes the last phrase added to the part
*/
public void removeLastPhrase() {
Vector vct = (Vector) this.phraseList;
vct.removeElement(vct.lastElement());
}
/**
* Deletes all the phrases previously added to the part
*/
public void removeAllPhrases() {
this.phraseList.removeAllElements();
}
/**
* Returns the entire phrase list
*
* @return Vector - A vector containing all this Parts phrase objects
*/
public Vector getPhraseList() {
return this.phraseList;
}
/**
* Updates the entire phrase list
*
* @param Vector containing phrase objects
*/
public void setPhraseList(Vector newPhraseList) {
this.phraseList = newPhraseList;
}
/**
* Returns the all phrases in this part as a array
*
* @return Phrase[] An array containing all Phrase objects in this part
*/
public Phrase[] getPhraseArray() {
Vector vct = (Vector) this.phraseList;
Phrase[] phraseArray = new Phrase[vct.size()];
for (int i = 0; i < phraseArray.length; i++) {
phraseArray[i] = (Phrase) vct.elementAt(i);
}
return phraseArray;
}
/**
* Add a chord phrase to the part
* as part of this process we need to remove the
* CPhrase's phrase list and add them to the Part's
* normal phrase list.
* CPhrases with a 'true' append flag are adeed to the end of the part.
*
* @param CPhrase
*/
public void addCPhrase(CPhrase cphrase) {
if (cphrase.getAppend()) cphrase.setStartTime(this.getEndTime());
Enumeration enum1 = cphrase.getPhraseList().elements();
while (enum1.hasMoreElements()) {
Phrase phr = (Phrase) enum1.nextElement();
//phr.setStartTime(phr.getStartTime() + cphrase.getStartTime());
this.addPhrase(phr);
}
}
/**
* Returns the Parts title
*
* @return String title
*/
public String getTitle() {
return this.title;
}
/**
* Sets the Parts title
*
* @param String title
*/
public void setTitle(String title) {
this.title = title;
}
/**
* Gets the channel for this channel
*
* @return short channel
*/
public int getChannel() {
return this.channel;
}
/**
* Sets the MidiChannel for this part
*
* @param short midiChannel
*/
public void setChannel(int channel) {
this.channel = channel;
}
/**
* Get Instrument number / MIDI Program Change
*
* @return program change
*/
public int getInstrument() {
return this.instrument;
}
// for backwards compatability
/**
* Set instrument number / MIDI Program Change
*
* @param int program change
*/
public void setInstrument(int instrument) {
this.instrument = instrument;
}
/**
* Set instrument number / MIDI Program Change
* This method is deprecated in favour of setInstrument!!
*
* @param int program change
*/
public void setProgChg(int program) {
this.instrument = program;
}
/**
* Returns the Part's tempo
*
* @return double tempo
*/
public double getTempo() {
return this.tempo;
}
/**
* Sets the Part's tempo
*
* @param double tempo
*/
public void setTempo(double tempo) {
this.tempo = tempo;
}
/**
* '
* Returns the Parts key signature
* The number of sharps (+) or flats (-)
*
* @return int key signature
*/
public int getKeySignature() {
return this.keySignature;
}
/**
* Specifies the Part's key signature
* The number of sharps (+) or flats (-)
*
* @param int key signature
*/
public void setKeySignature(int newSig) {
this.keySignature = newSig;
}
/**
* Returns the Parts key quality
* 0 is Major, 1 is minor
*
* @return int key quality
*/
public int getKeyQuality() {
return this.keyQuality;
}
/**
* Specifies the Part's key quality
* 0 is Major, 1 is minor
*
* @param int key quality (modality)
*/
public void setKeyQuality(int newQual) {
this.keyQuality = newQual;
}
/**
* Returns the Parts time signature numerator
*
* @return int time signature numerator
*/
public int getNumerator() {
return this.numerator;
}
/**
* Specifies the Part's time signature numerator
*
* @param int time signature numerator
*/
public void setNumerator(int num) {
this.numerator = num;
}
/**
* Returns the Parts time signature denominator
*
* @return int time signature denominator
*/
public int getDenominator() {
return this.denominator;
}
/**
* Returns a copy of the Part
* @return Part a copy of the Part
*/
/**
* Specifies the Part's time signature denominator
*
* @param int time signature denominator
*/
public void setDenominator(int dem) {
this.denominator = dem;
}
/**
* Return the pan position for this part
*
* @return double the part's pan setting
*/
public double getPan() {
return this.pan;
}
/**
* Determine the pan position for all notes in this part.
*
* @param double the part's pan setting
*/
public void setPan(double pan) {
this.pan = pan;
Enumeration enum1 = phraseList.elements();
while (enum1.hasMoreElements()) {
Phrase phrase = (Phrase) enum1.nextElement();
phrase.setPan(pan);
}
}
/**
* get a reference to the score that contains this part
*/
public Score getMyScore() {
return myScore;
}
/**
* set a reference to the score containing this part
*/
public void setMyScore(Score scr) {
this.myScore = scr;
}
/**
* Make a duplicate of the current part
*/
public Part copy() {
Part i;
i = new Part();
Enumeration enum1 = this.phraseList.elements();
while (enum1.hasMoreElements()) {
Phrase oldPhrase = (Phrase) enum1.nextElement();
i.addPhrase((Phrase) oldPhrase.copy());
}
copyAttributes(i);
return (Part) i;
}
private void copyAttributes(Part i) {
// copy the attrubutes
i.setInstrument(this.getInstrument());
i.setChannel(this.getChannel());
i.setTitle(this.getTitle() + " copy");
i.setTempo(this.tempo);
i.setPoints(this.points);
i.setTime(this.time);
i.setTimeIndex(this.timeIndex);
i.setMyScore(this.getMyScore());
}
/**
* Returns a copy of the Part between specified loactions
*
* @param double start of copy section in beats
* @param double end of copy section in beats
* @return Part a copy of section of the Part
*/
public Part copy(double startLoc, double endLoc) {
Part cp;
Vector tempVect = new Vector();
cp = new Part();
copyAttributes(cp);
Enumeration enum1 = this.phraseList.elements();
while (enum1.hasMoreElements()) {
Phrase ph = (Phrase) enum1.nextElement();
if (ph.getStartTime() < endLoc && ph.getEndTime() > startLoc) {
// if((ph.getStartTime() >= startLoc && ph.getStartTime() < endLoc)
// || (ph.getEndTime() > startLoc && ph.getEndTime() <= endLoc)) {
tempVect.addElement(ph.copy(startLoc, endLoc));
}
}
cp.setPhraseList(tempVect);
return (Part) cp;
}
/**
* Returns a copy of the Part between specified loactions
*
* @param boolean wether to trim the notes or not
* @param boolean wether to truncated the notes duration
* when trimming them or not
* @param boolean wether to set the start time of the phrases
* in relation to the start of the
*
old part (true) or the new one (false) maybe should be
* called "relative to old"
* @param double start of copy section in beats
* @param double end of copy section in beats
* @return Part a copy of section of the Part
*/
public Part copy(double startLoc, double endLoc,
boolean trimmed, boolean truncated, boolean relativeStartLoc) {
Part cp = new Part();
copyAttributes(cp);
Vector tempVect = new Vector();
// copy the core to which it belongs accross
cp.setMyScore(this.getMyScore());
Enumeration enum1 = this.phraseList.elements();
while (enum1.hasMoreElements()) {
Phrase ph = (Phrase) enum1.nextElement();
double startTime = ph.getStartTime();
if (startTime < endLoc && ph.getEndTime() > startLoc) {
//trimmed, truncated, move start time if first
// note is past startloc
Phrase cpy = ph.copy(startLoc, endLoc, trimmed, truncated, false);
// make the start time relative to the beginning
// of the new Part
double newStartTime = 0.0;
if (newStartTime < 0.0) newStartTime = 0.0;
if (relativeStartLoc) newStartTime += startLoc;
cpy.setStartTime(newStartTime);
// by this stage, the phrase should be as long as
// is needed to fit the endLoc.
// it isn't which means that something in
//phrase.copy isn't working
tempVect.addElement(cpy);
}
}
cp.setPhraseList(tempVect);
return (Part) cp;
}
/**
* Return the Parts endTime
*
* @return double the Parts endTime
*/
public double getEndTime() {
double endTime = 0.0;
Enumeration enum1 = this.phraseList.elements();
while (enum1.hasMoreElements()) {
Phrase nextPhr = (Phrase) enum1.nextElement();
double phraseEnd = nextPhr.getEndTime();
if (phraseEnd > endTime) endTime = phraseEnd;
}
return endTime;
}
/**
* Collects the Parts attributes to a string
*/
public String toString() {
String partData = new String("----- jMusic PART: '" + title +
"' contains " + this.size() + " phrases. -----" + '\n');
partData += "Channel = " + channel + '\n';
partData += "Instrument = " + instrument + '\n';
if (this.tempo > 0) partData += "Part Tempo = " + this.tempo + '\n';
Enumeration enum1 = phraseList.elements();
while (enum1.hasMoreElements()) {
Phrase phrase = (Phrase) enum1.nextElement();
partData = partData + phrase.toString() + '\n';
}
return partData;
}
/**
* Empty removes all elements in the vector
*/
public void empty() {
phraseList.removeAllElements();
}
/**
* Get the number of phrases in this part
*
* @return int The number of phrases
*/
public int length() {
return size();
}
/**
* get the number of phrases in this part
*
* @return int length - the number of phrases
*/
public int size() {
return (phraseList.size());
}
/**
* get the number of phrases in this part
*
* @return int length - the number of phrases
*/
public int getSize() {
return (phraseList.size());
}
/**
* Remove phrases from the score.
*/
public void clean() {
Enumeration enum1 = getPhraseList().elements();
while (enum1.hasMoreElements()) {
Phrase phrase = (Phrase) enum1.nextElement();
if (phrase.getInstrument() == this.instrument)
phrase.setInstrument(Phrase.DEFAULT_INSTRUMENT);
if (phrase.getNoteList().size() == 0) {
this.removePhrase(phrase);
}
}
}
/**
* Return the value of the highest note in the part.
*/
public int getHighestPitch() {
int max = 0;
Enumeration enum1 = getPhraseList().elements();
while (enum1.hasMoreElements()) {
Phrase phrase = (Phrase) enum1.nextElement();
if (phrase.getHighestPitch() > max) max = phrase.getHighestPitch();
}
return max;
}
/**
* Return the value of the lowest note in the part.
*/
public int getLowestPitch() {
int min = 127;
Enumeration enum1 = getPhraseList().elements();
while (enum1.hasMoreElements()) {
Phrase phrase = (Phrase) enum1.nextElement();
if (phrase.getLowestPitch() < min)
min = phrase.getLowestPitch();
}
return min;
}
/**
* Return the value of the longest rhythm value in the part.
*/
public double getLongestRhythmValue() {
double max = 0.0;
Enumeration enum1 = getPhraseList().elements();
while (enum1.hasMoreElements()) {
Phrase phrase = (Phrase) enum1.nextElement();
if (phrase.getLongestRhythmValue() > max)
max = phrase.getLongestRhythmValue();
}
return max;
}
/**
* Return the value of the shortest rhythm value in the part.
*/
public double getShortestRhythmValue() {
double min = 1000.0;
Enumeration enum1 = getPhraseList().elements();
while (enum1.hasMoreElements()) {
Phrase phrase = (Phrase) enum1.nextElement();
if (phrase.getShortestRhythmValue() < min)
min = phrase.getShortestRhythmValue();
}
return min;
}
/**
* Change the dynamic value of each note in the Part.
*/
public void setDynamic(int dyn) {
Enumeration enum1 = getPhraseList().elements();
while (enum1.hasMoreElements()) {
Phrase phrase = (Phrase) enum1.nextElement();
phrase.setDynamic(dyn);
}
}
/**
* Change the Pitch value of each note in the Part.
*/
public void setPitch(int val) {
Enumeration enum1 = getPhraseList().elements();
while (enum1.hasMoreElements()) {
Phrase phrase = (Phrase) enum1.nextElement();
phrase.setPitch(val);
}
}
/**
* Change the rhythmValue value of each note in the Part.
*/
public void setRhythmValue(double val) {
Enumeration enum1 = getPhraseList().elements();
while (enum1.hasMoreElements()) {
Phrase phrase = (Phrase) enum1.nextElement();
phrase.setRhythmValue(val);
}
}
/**
* Change the duration value of each note in the Part.
*/
public void setDuration(double val) {
Enumeration enum1 = getPhraseList().elements();
while (enum1.hasMoreElements()) {
Phrase phrase = (Phrase) enum1.nextElement();
phrase.setDuration(val);
}
}
//this section is an incomplete implementation of part envelopes
// needs updating or deleting - unstable!!!
public void setPoints(double[] p) {
points = p;
}
public double getPoint() {
return this.points[timeIndex];
}
public long getTime() {
return this.time[timeIndex++];
}
public void setTime(long[] t) {
this.time = t;
}
public int getTimeIndex() {
return this.timeIndex;
}
public void setTimeIndex(int index) {
this.timeIndex = index;
}
/**
* Add a note directly to a part, this method
* automatically encapsulates the note within a phrase.
*
* @param Note the note to be added.
* @param startTime the beat position where the note (phrase) will be placed
*/
public void addNote(Note n, double startTime) {
Phrase phrase = new Phrase("Generated by Part.addNote()", startTime);
phrase.addNote(n);
this.addPhrase(phrase);
}
/**
* Generates and returns a new empty phrase
* and adds it to this part.
*/
public Phrase createPhrase() {
Phrase p = new Phrase();
this.addPhrase(p);
return p;
}
/**
* Change both the rhythmValue and duration of each note in the part.
*
* @param newLength The new rhythmValue for the note (Duration is a proportion of this value)
*/
public void setLength(double newLength) {
this.setRhythmValue(newLength);
this.setDuration(newLength * Note.DEFAULT_DURATION_MULTIPLIER);
}
/**
* Orders the phrases in the phrase list by start time.
*/
public void sort() {
Phrase[] arr = this.getPhraseArray();
quickSort(arr, 0, arr.length - 1);
this.phraseList.removeAllElements();
this.phraseList.ensureCapacity(arr.length);
for (int i = 0; i < arr.length; i++) {
phraseList.add(arr[i]);
}
}
private void quickSort(Phrase[] phrases, int left, int right) {
int i, last;
if (left >= right) return; // already sorted
swap(phrases, left, (int) (Math.random() * (right - left)) + left);
// choose new pivot point
last = left;
for (i = left + 1; i <= right; i++) {
if (phrases[i].getStartTime() <= phrases[left].getStartTime()) swap(phrases, ++last, i);
}
swap(phrases, left, last); // restore pivot
quickSort(phrases, left, last - 1);
quickSort(phrases, last + 1, right);
}
}