nl.kevinjilissen.ledcontroller

Class Utils

java.lang.Object

nl.kevinjilissen.ledcontroller.Utils

public class Utils
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
Utils()

Method Summary

Modifier and Type	Method and Description
static byte	CRC8(byte[] data) Calculates a CRC8 value of a given byte array.
static byte	getBlue(javafx.scene.paint.Color color) Extracts the blue value out of a Color object.
static javafx.scene.paint.Color	getColor(byte red, byte green, byte blue) Creates a new instance of a Color object with the given color values.
static double	getDouble(byte[] bytes, int offset) Gets the double primitive value for the given byte array.
static void	getDoubleBytes(double value, byte[] dest, int offset) Gets the bytes of a double primitive and stores them in the given array.
static byte	getGreen(javafx.scene.paint.Color color) Extracts the green value out of a Color object.
static int	getInt(byte[] bytes, int offset) Gets the integer primitive value for the given byte array.
static void	getIntBytes(int value, byte[] dest, int offset) Gets the bytes of an integer primitive and stores them in the given array.
static long	getLong(byte[] bytes, int offset) Gets the long primitive value for the given byte array.
static void	getLongBytes(long value, byte[] dest, int offset) Gets the bytes of a long primitive and stores them in the given array.
static byte	getRed(javafx.scene.paint.Color color) Extracts the red value out of a Color object.

Methods inherited from class java.lang.Object

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

Constructor Detail

Utils

public Utils()

Method Detail

getDoubleBytes

public static void getDoubleBytes(double value,
                                  byte[] dest,
                                  int offset)

Gets the bytes of a double primitive and stores them in the given array.

Parameters:

value - The double primitive which has to be stored.

dest - The destination byte array.

offset - The offset in the destination array.

getDouble

public static double getDouble(byte[] bytes,
                               int offset)

Gets the double primitive value for the given byte array.

Parameters:

bytes - The byte array containing the bytes for the double value.

offset - The offset within the array to indicate where the double is stored.

Returns:

The double primitive value.

getLongBytes

public static void getLongBytes(long value,
                                byte[] dest,
                                int offset)

Gets the bytes of a long primitive and stores them in the given array.

Parameters:

value - The long primitive which has to be stored.

dest - The destination byte array.

offset - The offset in the destination array.

getLong

public static long getLong(byte[] bytes,
                           int offset)

Gets the long primitive value for the given byte array.

Parameters:

bytes - The byte array containing the bytes for the long value.

offset - The offset within the array to indicate where the long is stored.

Returns:

The long primitive value.

getIntBytes

public static void getIntBytes(int value,
                               byte[] dest,
                               int offset)

Gets the bytes of an integer primitive and stores them in the given array.

Parameters:

value - The integer primitive which has to be stored.

dest - The destination byte array.

offset - The offset in the destination array.

getInt

public static int getInt(byte[] bytes,
                         int offset)

Gets the integer primitive value for the given byte array.

Parameters:

bytes - The byte array containing the bytes for the integer value.

offset - The offset within the array to indicate where the double is stored.

Returns:

The integer primitive value.

getColor

public static javafx.scene.paint.Color getColor(byte red,
                                                byte green,
                                                byte blue)

Creates a new instance of a Color object with the given color values.

Parameters:

red - The red value as a signed byte in the range of 0-255.

green - The green value as a signed byte in the range of 0-255.

blue - The blue value as a signed byte in the range of 0-255.

Returns:

The instance of the Color object.

getRed

public static byte getRed(javafx.scene.paint.Color color)

Extracts the red value out of a Color object.

Parameters:

color - The color object

Returns:

The red value as a signed byte in the range of 0-255.

getGreen

public static byte getGreen(javafx.scene.paint.Color color)

Extracts the green value out of a Color object.

Parameters:

color - The color object

Returns:

The green value as a signed byte in the range of 0-255.

getBlue

public static byte getBlue(javafx.scene.paint.Color color)

Extracts the blue value out of a Color object.

Parameters:

color - The color object

Returns:

The blue value as a signed byte in the range of 0-255.

CRC8

public static byte CRC8(byte[] data)

Calculates a CRC8 value of a given byte array. This CRC value is used for some serial communication commands to ensure the data is intact.

Parameters:

data - The bytes to calculate the CRC of.

Returns:

The CRC8 value as a byte.