opusplus.core.lilypond
Class LilypondPianoStaveAutoChanger

java.lang.Object
  opusplus.core.lilypond.LilypondPianoStaveAutoChanger

public class LilypondPianoStaveAutoChanger

extends java.lang.Object

Class encapsulating the piano stave 'auto' changing of Lilypond. We actually do it manually, from Lilypond's perspective, because we have slightly more control.

Author:

Adrian Marriott

LilypondPianoStaveAutoChanger

public LilypondPianoStaveAutoChanger()

reset

public static void reset(VoiceType voiceType)

Initializes the auto-changer to the default stave of the voice.

printAutoChange

public static void printAutoChange(java.io.PrintStream out,
                                   int[] pitches)

Passed the pitches of the current music element, this method will print out the necessary stave change strings to track pitches.

untanglePianoVoices

public static void untanglePianoVoices()

Untangles the voices in each piano stave.

straddlesThreshold

public static boolean straddlesThreshold(int[] pitches,
                                         int threshold)

Returns true if the pitches in the array 'straddle' the passed threshold pitch. This is true when the threshold pitch falls between the minimum and maximum value found in the pitches array. i.e. min(pitches) < threshold < max(pitches). If the threshold is equal to either the minimum or maximum then this function return false.