org.jfugue.extras
Class DurationPatternTransformer

java.lang.Object
  org.jfugue.PatternTransformer
      org.jfugue.extras.DurationPatternTransformer

All Implemented Interfaces:

java.util.EventListener, ParserListener

public class DurationPatternTransformer
extends PatternTransformer

The DurationPatternTransformer multiplies the duration of all notes in the given Pattern by a factor passed as a parameter.

This transformer can be used to increase or decrease the duration of notes. To increase the duration, use a variable greater than 1.0. To decrease the duration, use a value less than 1.0. The default value for this transformer is 1.0, which will result in no change to your Pattern.

For general information on how Pattern Transformers work, refer to the JFugue documentation.

Version:

2.0

Author:

David Koelle

Field Summary

static java.lang.String

FACTOR Pass this String to putVariable, along with the factor by which you wish to alter the duration.

Fields inherited from class org.jfugue.PatternTransformer

returnPattern

Constructor Summary

DurationPatternTransformer()
Instantiates a new DurationPatternTransformer object.

DurationPatternTransformer(double delta)
Instantiates a new DurationPatternTransformer object, given a value by which to multiply the duration

Method Summary

java.lang.String	getDescription() Indicates what this PatternTransformer does.
java.lang.String	getParameters() Returns a string declaring what variables DurationPatternTransformer can use to perform the transformation.
void	noteEvent(Note note) Transforms the given note
void	parallelNoteEvent(Note note) Transforms the given note
void	sequentialNoteEvent(Note note) Transforms the given note

Methods inherited from class org.jfugue.PatternTransformer

channelPressureEvent, controllerEvent, getParameter, instrumentEvent, keySignatureEvent, layerEvent, measureEvent, pitchBendEvent, polyphonicPressureEvent, putParameter, tempoEvent, timeEvent, transform, voiceEvent

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

FACTOR

public static final java.lang.String FACTOR

Pass this String to putVariable, along with the factor by which you wish to alter the duration.

See Also:

Constant Field Values

Constructor Detail

DurationPatternTransformer

public DurationPatternTransformer()

Instantiates a new DurationPatternTransformer object. The default value by which to multiply the duration is 1.0, which will result in no change to the given Music String.

DurationPatternTransformer

public DurationPatternTransformer(double delta)

Instantiates a new DurationPatternTransformer object, given a value by which to multiply the duration

Method Detail

getParameters

public java.lang.String getParameters()

Returns a string declaring what variables DurationPatternTransformer can use to perform the transformation.

DurationPatternTransformer requires the following:
'factor' - Double - Factor by which to multiply the existing duration of a note. Greater than 1.0 produces longer notes, less than 1.0 produces shorter notes. Default is 1.0

Overrides:

getParameters in class PatternTransformer

getDescription

public java.lang.String getDescription()

Description copied from class: PatternTransformer

Indicates what this PatternTransformer does.

Overrides:

getDescription in class PatternTransformer

Returns:

A String giving a quick description of this transformer

noteEvent

public void noteEvent(Note note)

Transforms the given note

Specified by:

noteEvent in interface ParserListener

Overrides:

noteEvent in class PatternTransformer

Parameters:

note - the event that has been parsed

See Also:

Note

sequentialNoteEvent

public void sequentialNoteEvent(Note note)

Transforms the given note

Specified by:

sequentialNoteEvent in interface ParserListener

Overrides:

sequentialNoteEvent in class PatternTransformer

Parameters:

note - the event that has been parsed

See Also:

Note

parallelNoteEvent

public void parallelNoteEvent(Note note)

Transforms the given note

Specified by:

parallelNoteEvent in interface ParserListener

Overrides:

parallelNoteEvent in class PatternTransformer

Parameters:

note - the event that has been parsed

See Also:

Note