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/*
* Copyright 2012 Phidgets Inc. All rights reserved.
*/
package com.phidgets;
/**
* This class represents an IR Code.
*
* @author Phidget Inc.
*/
public final class IRCode
{
private short[] data;
/**
* IR code data. This is MSB first, right justified. This is really an (unsigned) Byte array,
* so values range from 0-255. We have to use shorts because Java doesn't support unsigned types.
*/
public short[] getData()
{
return data;
}
private int bitCount;
/**
* Data bits. This is important because many codes use a number of bits that doesn't line up with byte (8-bit) borders.
*/
public int getBitCount()
{
return bitCount;
}
/**
* Creates a new IR Code from a string.
* @param code the IR code
* @param bitCount the code length in bits.
*/
public IRCode(String code, int bitCount)
{
this.data = HexToData(code);
this.bitCount = bitCount;
}
/**
* Creates a new IR Code from a data array.
* @param data the IR code data
* @param bitCount the code length in bits.
*/
public IRCode(short[] data, int bitCount)
{
int length = (bitCount / 8) + ((bitCount % 8 > 0) ? 1 : 0);
this.data = new short[length];
for (int i = 0; i < length; i++)
this.data[i] = data[i];
this.bitCount = bitCount;
}
private short[] HexToData(String hexString)
{
if (hexString == null)
return null;
if (hexString.startsWith("0x")){
hexString = hexString.substring(2);
}
if (hexString.length() % 2 == 1)
hexString = '0' + hexString; // Up to you whether to pad the first or last byte
short[] data = new short[hexString.length() / 2];
for (int i = 0; i < data.length; i++){
data[i] = (short) Integer.parseInt(hexString.substring(i * 2, (i * 2) + 2), 16);
}
return data;
}
private char[] hexlookup = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
/**
* String representation of the IR code.
*/
public String toString()
{
String out = "";
for(int i=0;i<data.length;i++)
{
out = out + (hexlookup[data[i] / 16]);
out = out + (hexlookup[data[i] % 16]);
}
return out;
}
}
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