All Implemented Interfaces:

java.lang.AutoCloseable
```
public class NeoKeyHandler
 implements AutoCloseable
                    
```
Handles getting button presses from a NeoKey1x4, along with setting pretty colors, etc. Performs a single "debounce" by only reporting a button press if it's different from the last read. This works well in a fairly "tight" loop, but if you're doing other things in between, you may want to do your own debouncing.
THIS CLASS IS NOT THREAD-SAFE! It is not intended to be used across multiple threads.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description

Field Summary

Fields
Modifier and Type	Field	Description
`private final Integer`	`numberOfButtons`
`private Float`	`brightness`
`private List<Color>`	`buttonColors`
`private final Function2<List<Boolean>, PixelBuf, <Error class: unknown class>>`	`DEFAULT_BUTTON_CALLBACK`
`private Function2<List<Boolean>, PixelBuf, Unit>`	`buttonColorCallback`
`private final NeoKey`	`keyboard`
`private final Color`	`activationColor`

Constructor Summary

Constructors
Constructor	Description
`NeoKeyHandler(NeoKey keyboard, Color activationColor, List<Color> initialColors, Float initialBrightness)`

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`final Integer`	`getNumberOfButtons()`
`final Float`	`getBrightness()`
`final Unit`	`setBrightness(Float brightness)`
`final List<Color>`	`getButtonColors()`
`final Unit`	`setButtonColors(List<Color> buttonColors)`
`final Function2<List<Boolean>, PixelBuf, <Error class: unknown class>>`	`getDEFAULT_BUTTON_CALLBACK()`	The default button callback.
`final Function2<List<Boolean>, PixelBuf, Unit>`	`getButtonColorCallback()`	Over-ride this to do something with the button values, otherwise the DEFAULT_BUTTON_CALLBACK is used.
`final Unit`	`setButtonColorCallback(Function2<List<Boolean>, PixelBuf, Unit> buttonColorCallback)`	Over-ride this to do something with the button values, otherwise the DEFAULT_BUTTON_CALLBACK is used.
`final NeoKey`	`getKeyboard()`
`final Color`	`getActivationColor()`
`Unit`	`close()`
`Unit`	`updateButtonColors(Boolean force)`	Reset the colors of the buttons to buttonColors, only if necessary.
`final List<Boolean>`	`read()`	Read the current button states and returns when the values change (this is a limited debounce, effectively only reporting a "button down").

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - NeoKeyHandler
```
NeoKeyHandler(NeoKey keyboard, Color activationColor, List<Color> initialColors, Float initialBrightness)
```
    Parameters:
    
    keyboard - the NeoKey1x4 to use
    
    activationColor - the color to use when a button is pressed
    
    initialColors - the initial set of colors to use when a button is not pressed (default blue, green, cyan, red)
    
    initialBrightness - the initial brightness of the keyboard (default 0.
- Method Detail
  - getNumberOfButtons
```
 final Integer getNumberOfButtons()
```
  - getBrightness
```
 final Float getBrightness()
```
  - setBrightness
```
 final Unit setBrightness(Float brightness)
```
  - getButtonColors
```
 final List<Color> getButtonColors()
```
  - setButtonColors
```
 final Unit setButtonColors(List<Color> buttonColors)
```
  - getDEFAULT_BUTTON_CALLBACK
```
 final Function2<List<Boolean>, PixelBuf, <Error class: unknown class>> getDEFAULT_BUTTON_CALLBACK()
```
    The default button callback. This sets the activation color for any buttons that are pressed and returns to the default color when the button is released.
  - getButtonColorCallback
```
 final Function2<List<Boolean>, PixelBuf, Unit> getButtonColorCallback()
```
    Over-ride this to do something with the button values, otherwise the DEFAULT_BUTTON_CALLBACK is used.
  - setButtonColorCallback
```
 final Unit setButtonColorCallback(Function2<List<Boolean>, PixelBuf, Unit> buttonColorCallback)
```
    Over-ride this to do something with the button values, otherwise the DEFAULT_BUTTON_CALLBACK is used.
  - getKeyboard
```
 final NeoKey getKeyboard()
```
  - getActivationColor
```
 final Color getActivationColor()
```
  - close
```
 Unit close()
```
  - updateButtonColors
```
 Unit updateButtonColors(Boolean force)
```
    Reset the colors of the buttons to buttonColors, only if necessary.
  - read
```
 final List<Boolean> read()
```
    Read the current button states and returns when the values change (this is a limited debounce, effectively only reporting a "button down").

Class NeoKeyHandler

Nested Class Summary

Field Summary

Constructor Summary

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

NeoKeyHandler

Method Detail

getNumberOfButtons

getBrightness

setBrightness

getButtonColors

setButtonColors

getDEFAULT_BUTTON_CALLBACK

getButtonColorCallback

setButtonColorCallback

getKeyboard

getActivationColor

close

updateButtonColors

read