Package eu.bandm.sig.adlib2.lib

Class FloatPost

java.lang.Object

eu.bandm.sig.adlib2.lib.FloatPost

All Implemented Interfaces:

AbstractSignalSource, CompilableDataFlow, FloatSignalSource, FloatSupplier

public class FloatPost
extends Object
implements FloatSignalSource

Central class to realize control values which can come from different sources and flow to different consumers. In practice, the following situations must be freely combinable:

• programmatic, spurious setting by imperative code
• clocked read of some signal source
• irregular, but predictable setting by a kind of sequencer
• spontaneous GUI input by slider / checkbox / textinput
• Midi input (key, ctrl, etc.)
• other external sensors

The current value may flow into:

• continuous output as a signal source
• programmatic/event like reaction in case of change
• GUI visualization of current value
• visualization plot of recent history
• protocol of changes, either discrete or continuously sampled

The domain can be

• some scalar domain like float or int
• boolean
• (seldom: text)
• some PRODUCT of these
• (seldom: a CO-product)

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	FloatPost.SwingSlider

Field Summary

Fields

Modifier and Type	Field	Description
static final int	APPEARANCE_HORIZONTAL
static final int	APPEARANCE_VERTICAL
protected final float	epsilon
protected Object	lastSource
protected Set<Consumer<FloatPost>>	listeners
protected final float	max
protected final float	min
protected final String	name
static final int	SLIDER_MAX	Get GUI representation.
protected final String	unit
protected float	value

Constructor Summary

Constructors

Constructor	Description
FloatPost(String name, String unit, float min, float max, float epsilon)
FloatPost(String name, String unit, float min, float max, float epsilon, float initValue)

Method Summary

Modifier and Type	Method	Description
void	addListener(Consumer<FloatPost> pl)
float	getAsFloat()	Returns the current value of this signal source.
protected int	model2view(float model)
void	setValue(float value)	Called from outside.
protected void	setValue(float value, @Opt Object source)
protected float	view2model(int view)
Process	write(FloatSignalSource v)

Methods inherited from class java.lang.Object

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

Methods inherited from interface eu.bandm.sig.adlib2.compile.CompilableDataFlow

compileDataFlowTo, hasDataFlowIO

Methods inherited from interface eu.bandm.sig.adlib2.FloatSignalSource

abs, add, asInt, compileDataFlow, compileMainSignalSource, DEBUG, defined, delayed, delayed, divide, equal, floor, getConstantAsFloat, getValueClass, glidingAverage, glidingStandardDeviation, glidingSum, glidingVariance, greaterOrEqual, greaterThan, guard, hasConstantAsFloat, invariant, lessOrEqual, lessThan, map, max, min, modulo, multiply, negate, negative, nonEqual, nonnegative, nonpositive, nonzero, notANumber, positive, power, probe, publishStoredValueVariable, relateWith, sampleAndHold, selectAffine, series, sqrt, stored, subtract, zero, zeroCrossing, zipWith

Field Details

name

protected final String name

value

protected float value

lastSource

protected Object lastSource

min

protected final float min

max

protected final float max

epsilon

protected final float epsilon

unit

protected final String unit

listeners

protected Set<Consumer<FloatPost>> listeners

APPEARANCE_HORIZONTAL

public static final int APPEARANCE_HORIZONTAL

See Also:

• Constant Field Values

APPEARANCE_VERTICAL

public static final int APPEARANCE_VERTICAL

See Also:

• Constant Field Values

SLIDER_MAX

public static final int SLIDER_MAX

Get GUI representation.

  APPEARANCE_VERTICAL   APPEARANCE_HORIZONTAL
  +-----+     +-----------------------------------------+
  |name |     | name                         [...] unit |
  | =   |     | |----------[XXX]---------------------|  |
  | |300|     |  -120                            300    |
  | |   |     +-----------------------------------------+
  | |   |
  |[XX] |
  | |   |
  | |   |
  | |   |
  | |   |
  | |   |
  | |   |
  | |   |
  | |-120
  | =   |
  |     |
  |[.]Hz|
  +-----+

See Also:

• Constant Field Values

Constructor Details

FloatPost

public FloatPost(String name,
 String unit,
 float min,
 float max,
 float epsilon)

FloatPost

public FloatPost(String name,
 String unit,
 float min,
 float max,
 float epsilon,
 float initValue)

Method Details

getAsFloat

public float getAsFloat()

Description copied from interface: FloatSignalSource

Returns the current value of this signal source.

The value may be either computed on demand, or retrieved from storage.

Implementations of this method should have no side effect.

Specified by:

getAsFloat in interface FloatSignalSource

Specified by:

getAsFloat in interface FloatSupplier

Returns:

the current value of this signal source

write

public Process write(FloatSignalSource v)

setValue

public void setValue(float value)

Called from outside.

setValue

protected void setValue(float value,
 @Opt
 @Opt Object source)

Parameters:

source - the agent which initiates this particular change of the value. It is excluded from the listeners which are notified aboth this particular change.

addListener

public void addListener(Consumer<FloatPost> pl)

view2model

protected float view2model(int view)

model2view

protected int model2view(float model)