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/*
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 * BitBuffer.cpp
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 *
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 *  Created on: Jul 17, 2009
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 *      Author: Mattias Runge
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 */
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#include "BitBuffer.h"
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namespace atom {
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namespace message {
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BitBuffer::BitBuffer(byte_list bytes) {
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    this->setFromBytes(bytes);
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}
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BitBuffer::BitBuffer() {
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    this->myPointer = 0;
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}
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BitBuffer::~BitBuffer() {
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}
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byte_list BitBuffer::getAsBytes()
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{
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    byte_list bytes;
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    // TODO implement
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    return bytes;
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}
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void BitBuffer::setFromBytes(byte_list bytes)
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{
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    for (unsigned int n = 0; n < bytes.size(); n++)
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    {
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        this->myBits.push_back((bytes[n] >> 7 & 1) > 0);
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        this->myBits.push_back((bytes[n] >> 6 & 1) > 0);
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        this->myBits.push_back((bytes[n] >> 5 & 1) > 0);
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        this->myBits.push_back((bytes[n] >> 4 & 1) > 0);
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        this->myBits.push_back((bytes[n] >> 3 & 1) > 0);
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        this->myBits.push_back((bytes[n] >> 2 & 1) > 0);
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        this->myBits.push_back((bytes[n] >> 1 & 1) > 0);
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        this->myBits.push_back((bytes[n] >> 0 & 1) > 0);
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    }
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    this->myPointer = 0;
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}
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unsigned int BitBuffer::getSize()
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{
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    return this->myBits.size();
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}
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unsigned int BitBuffer::getPointer()
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{
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    return this->myPointer;
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}
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void BitBuffer::incrementPointer(unsigned int steps)
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{
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    this->myPointer += steps;
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}
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void BitBuffer::clear()
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{
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    this->myBits.clear();
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    this->myPointer = 0;
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}
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void BitBuffer::read(unsigned int length, unsigned long & value)
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{
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    value = 0;
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    for (unsigned int n = 0; n < length; n++)
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    {
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        value = (value << n) | this->readBit();
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    }
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}
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void BitBuffer::read(unsigned int length, long & value)
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{
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    // TODO Implement
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}
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void BitBuffer::read(unsigned int length, bool & value)
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{
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    value = this->readBit();
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}
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void BitBuffer::write(unsigned int length, unsigned long value)
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{
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    for (unsigned int n = length-1; n >= 0; n--)
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    {
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        this->writeBit((value >> n) & 1);
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    }
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}
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void BitBuffer::write(unsigned int length, long value)
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{
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    // TODO Implement
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}
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void BitBuffer::write(unsigned int length, bool value)
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{
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    this->writeBit(value);
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}
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bool BitBuffer::readBit()
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{
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    this->myPointer++;
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    if (this->myPointer > this->myBits.size())
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    {
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        return false;
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    }
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    return this->myBits[this->myPointer-1];
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}
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void BitBuffer::writeBit(bool value)
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{
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    this->myBits.push_back(value);
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}
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}
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}