bytearray.cpp

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/*
**  ClanLib SDK
**  Copyright (c) 1997-2005 The ClanLib Team
**
**  This software is provided 'as-is', without any express or implied
**  warranty.  In no event will the authors be held liable for any damages
**  arising from the use of this software.
**
**  Permission is granted to anyone to use this software for any purpose,
**  including commercial applications, and to alter it and redistribute it
**  freely, subject to the following restrictions:
**
**  1. The origin of this software must not be misrepresented; you must not
**     claim that you wrote the original software. If you use this software
**     in a product, an acknowledgment in the product documentation would be
**     appreciated but is not required.
**  2. Altered source versions must be plainly marked as such, and must not be
**     misrepresented as being the original software.
**  3. This notice may not be removed or altered from any source distribution.
**
**  Note: Some of the libraries ClanLib link to may have additional
**  requirements or restrictions.
**
**  File Author(s):
**
**    Magnus Norddahl
*/

#include "precomp.h"
#include "bytearray.h"
#include <string.h>

// CL_ByteArray Construction:

CL_ByteArray::CL_ByteArray() : data(0), size(0), allocated_size(0)
{
}

CL_ByteArray::CL_ByteArray(const CL_ByteArray &copy) : data(0), size(0), allocated_size(0)
{
        set_size(copy.size);
        memcpy(data, copy.data, size);
}

CL_ByteArray::CL_ByteArray(int size) : data(0), size(0), allocated_size(0)
{
        set_size(size);
}

CL_ByteArray::~CL_ByteArray()
{
        delete[] data;
}

// CL_ByteArray Attributes:

char *CL_ByteArray::get_data()
{
        return data;
}

const char *CL_ByteArray::get_data() const
{
        return data;
}

int CL_ByteArray::get_size() const
{
        return size;
}

int CL_ByteArray::get_capacity() const
{
        return allocated_size;
}

char &CL_ByteArray::operator[](int i)
{
        return data[i];
}

const char &CL_ByteArray::operator[](int i) const
{
        return data[i];
}

char &CL_ByteArray::operator[](unsigned int i)
{
        return data[i];
}

const char &CL_ByteArray::operator[](unsigned int i) const
{
        return data[i];
}

// CL_ByteArray Operations:

CL_ByteArray &CL_ByteArray::operator =(const CL_ByteArray &copy)
{
        if (data != copy.data)
        {
                set_size(copy.size);
                memcpy(data, copy.data, size);
        }
        return *this;
}

void CL_ByteArray::set_size(int new_size)
{
        if (new_size > allocated_size)
        {
                char *old_data = data;
                data = new char[new_size];
                memcpy(data, old_data, size);
                delete[] old_data;
                memset(data+size, 0, new_size-size);
                size = new_size;
                allocated_size = new_size;
        }
        else if (new_size <= allocated_size)
        {
                size = new_size;
        }
}

void CL_ByteArray::set_capacity(int new_capacity)
{
        if (new_capacity > allocated_size)
        {
                char *old_data = data;
                data = new char[new_capacity];
                memcpy(data, old_data, size);
                delete[] old_data;
                memset(data+size, 0, new_capacity-size);
                allocated_size = new_capacity;
        }
}

// CL_ByteArray Implementation:

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