com.softsynth.jmsl.util
Class ScaleMusicShapeEditorOperator

java.lang.Object
  com.softsynth.jmsl.util.ScaleMusicShapeEditorOperator

All Implemented Interfaces:

Namable, MusicShapeEditorOperator

public class ScaleMusicShapeEditorOperator
extends java.lang.Object
implements MusicShapeEditorOperator

transpose and scale selected range of MusicShape by (v2 / v3) or (v3 / v2)

Author:

Nick Didkovsky, didkovn@mail.rockefeller.edu

Constructor Summary

ScaleMusicShapeEditorOperator(boolean flip)

Method Summary

java.lang.String	getName()
void	operate(MusicShapeEditor se, MusicShape s) scale by v2 / v3 or v3 / v2 depending on boolean flip value No scaling if denom==0
void	setName(java.lang.String n)

Methods inherited from class java.lang.Object

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

Constructor Detail

ScaleMusicShapeEditorOperator

public ScaleMusicShapeEditorOperator(boolean flip)

Method Detail

operate

public void operate(MusicShapeEditor se,
                    MusicShape s)

scale by v2 / v3 or v3 / v2 depending on boolean flip value No scaling if denom==0

        if (se.getRangeStartIndex() != -1 && se.getRangeEndIndex() != -1
                && Limits.within(se.getDimension(), 0, s.dimension() - 1)) {
            double numer = se.getV2();
            double denom = se.getV3();
            double scaler = 1;
            if (flip && numer != 0) {
                scaler = denom / numer;
            } else if (!flip && denom != 0) {
                scaler = numer / denom;
            }
            s.scale(scaler, se.getRangeStartIndex(), se.getRangeEndIndex(), se.getDimension());
        }
 

Specified by:

operate in interface MusicShapeEditorOperator

getName

public java.lang.String getName()

Specified by:

getName in interface Namable

setName

public void setName(java.lang.String n)

Specified by:

setName in interface Namable