eu.bandm.mugraph.base

Class Renderer.Segment

java.lang.Object

eu.bandm.mugraph.base.Renderer.Inner

eu.bandm.mugraph.base.Renderer.Segment

Enclosing class:

Renderer

public class Renderer.Segment
extends Renderer.Inner

Realizes the geometric data related to one particular Staff of the input Score. E.g., calculates the Extensions of a Visual Object given by position index, based on the currently valid staff line distance.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) @Opt java.math.BigDecimal	nextMeasureNum Running value: the bar number of the next measure waiting for processing.
(package private) int	position Running value: the index number of the next visible to process.
(package private) int	size number of elements in staff; for convenience only.
(package private) Staff	staff
(package private) java.util.SortedMap<java.lang.Integer,java.lang.Float>	staffLineDistances The line distances are defined by the StaffLines objects contained in the timed data.

Constructor Summary

Constructors

Constructor and Description
Segment(Staff staff)

Method Summary

Modifier and Type	Method and Description
(package private) boolean	acceptPrefixComponents(Renderer.NoteSystem sys, Renderer.RunningPrefix pref) Test for prefix components and memorize them for the current/the next opening accolade.
(package private) Extension	getExtension_acc(Accidental a, float factor)
(package private) Extension	getExtension_barLine(BarLine bl) Simply multiplies the raw extent with the standard bar line distance from the Parameters.
(package private) Extension	getExtension_chord(Chord e, float linedistance, float sizefactor)
(package private) Extension	getExtension_cluster(Cluster cluster, float linedistance, float sizefactor)
(package private) Extension	getExtension_nh(NoteHead nh, float factor)
(package private) Extension	getExtension_staffLines(StaffLines sl, int pos)
(package private) Extension	getExtension(int pos) Gets PHYSICAL extensions using dedicated routines for Barline and StaffLine, and getExtension(int,Visible) for all others.
(package private) Extension	getExtension(int pos, Visible go) Gets PHYSICAL extensions for getExtension(int,Visible), mulitplying the RAW extents with the currently valid Staff line distance.
(package private) void	init() Read the very first object, which must be a MeasureMark, and initialize nextMeasureNum.
(package private) void	shuffleMeasureContents(Renderer.RunningPrefix currentPrefix, Renderer.NoteSystem nextSys, Renderer.RunningPrefix nextPrefix, Renderer.Measure measure) Scan all objects (starting with current position, up to next MeasureMark) (iff they belong to the current measure number) and add the positions and time values to the Measure object.
(package private) void	shufflePrefix_firstMeasureInAccolade(Renderer.NoteSystem sys, Renderer.RunningPrefix pref, java.math.BigDecimal nextMeasureToRender) Differences of the very first measure in NoteSystem to all to subsequent measures is that clefs, keys and metre will be printed globally and aligned, not as part of Prepended/Postpended contents of measure stuff, and that labels and opening brackets must be known before starting the layout of the rest.

Methods inherited from class eu.bandm.mugraph.base.Renderer.Inner

get_renderer

Methods inherited from class java.lang.Object

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

Field Detail

staff

final Staff staff

size

final int size

number of elements in staff; for convenience only.

staffLineDistances

final java.util.SortedMap<java.lang.Integer,java.lang.Float> staffLineDistances

The line distances are defined by the StaffLines objects contained in the timed data. They are defined as "logical" distance indexes, which must be looked-up in Param. Every StaffLines object is valid up to the next instance in the same staff. Line distances are the basis for calculating logical distances. Therefore this map is for convenience and optimization and delivers the resolved line distance which is valid at any position number.

position

int position

Running value: the index number of the next visible to process.

nextMeasureNum

@Opt
@Opt java.math.BigDecimal nextMeasureNum

Running value: the bar number of the next measure waiting for processing.

Constructor Detail

Segment

Segment(Staff staff)

Method Detail

init

void init()

Read the very first object, which must be a MeasureMark, and initialize nextMeasureNum. Visits all StaffLines for later size calculation.

getExtension

Extension getExtension(int pos)

Gets PHYSICAL extensions using dedicated routines for Barline and StaffLine, and getExtension(int,Visible) for all others.

getExtension

Extension getExtension(int pos,
                       Visible go)

Gets PHYSICAL extensions for getExtension(int,Visible), mulitplying the RAW extents with the currently valid Staff line distance. Calls special routines for Chords and Clusters, and simply multiplies the raw extent with the current line distance for all others. ASSUME all StaffLines in this Staff have been collected into staffLineDistances.

getExtension_barLine

Extension getExtension_barLine(BarLine bl)

Simply multiplies the raw extent with the standard bar line distance from the Parameters.

getExtension_staffLines

Extension getExtension_staffLines(StaffLines sl,
                                  int pos)

getExtension_chord

Extension getExtension_chord(Chord e,
                             float linedistance,
                             float sizefactor)

getExtension_acc

Extension getExtension_acc(Accidental a,
                           float factor)

getExtension_nh

Extension getExtension_nh(NoteHead nh,
                          float factor)

getExtension_cluster

Extension getExtension_cluster(Cluster cluster,
                               float linedistance,
                               float sizefactor)

acceptPrefixComponents

boolean acceptPrefixComponents(Renderer.NoteSystem sys,
                               Renderer.RunningPrefix pref)

Test for prefix components and memorize them for the current/the next opening accolade. (GLO IN position; the advance of position is done by the caller!)

Parameters:

sys - the staff to parse, and where to set the "<>changed" flag. (Optimization for #allocateHeader(boolean).)

pref - where to store the accepted objects

Returns:

whether at position a prefix matter has been found.

shufflePrefix_firstMeasureInAccolade

void shufflePrefix_firstMeasureInAccolade(Renderer.NoteSystem sys,
                                          Renderer.RunningPrefix pref,
                                          java.math.BigDecimal nextMeasureToRender)

Differences of the very first measure in NoteSystem to all to subsequent measures is that clefs, keys and metre will be printed globally and aligned, not as part of Prepended/Postpended contents of measure stuff, and that labels and opening brackets must be known before starting the layout of the rest. nextMeasureNum has been set before by "init()" or "shuffleMeasureContents(...)" Store the values of prefix objects and advance, until the first non-prefix visual object is found.

shuffleMeasureContents

void shuffleMeasureContents(Renderer.RunningPrefix currentPrefix,
                            Renderer.NoteSystem nextSys,
                            Renderer.RunningPrefix nextPrefix,
                            Renderer.Measure measure)

Scan all objects (starting with current position, up to next MeasureMark) (iff they belong to the current measure number) and add the positions and time values to the Measure object.

Parameters:

currentPrefix - for to clear "accoladeEmpty"

nextSys - for to store the "clef changed" flags, etc

nextPrefix - for to store the "clef" index number, etc.

measure - where to store the indexes and time points passed.