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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*/
#ifndef COMMON_ARRAY_H
#define COMMON_ARRAY_H
#include "common/scummsys.h"
#include "common/algorithm.h"
namespace Common {
template <class T>
class Array {
protected:
uint _capacity;
uint _size;
T *_data;
public:
typedef T *iterator;
typedef const T *const_iterator;
typedef T value_type;
public:
Array() : _capacity(0), _size(0), _data(0) {}
Array(const Array<T>& array) : _capacity(0), _size(0), _data(0) {
_size = array._size;
_capacity = _size + 32;
_data = new T[_capacity];
copy(array._data, array._data + _size, _data);
}
~Array() {
delete [] _data;
}
void push_back(const T& element) {
ensureCapacity(_size + 1);
_data[_size++] = element;
}
void push_back(const Array<T>& array) {
ensureCapacity(_size + array._size);
copy(array._data, array._data + array._size, _data + _size);
_size += array._size;
}
void insert_at(int idx, const T& element) {
assert(idx >= 0 && (uint)idx <= _size);
ensureCapacity(_size + 1);
copy_backward(_data + idx, _data + _size, _data + _size + 1);
_data[idx] = element;
_size++;
}
T remove_at(int idx) {
assert(idx >= 0 && (uint)idx < _size);
T tmp = _data[idx];
copy(_data + idx + 1, _data + _size, _data + idx);
_size--;
return tmp;
}
// TODO: insert, remove, ...
T& operator [](int idx) {
assert(idx >= 0 && (uint)idx < _size);
return _data[idx];
}
const T& operator [](int idx) const {
assert(idx >= 0 && (uint)idx < _size);
return _data[idx];
}
Array<T>& operator =(const Array<T>& array) {
if (this == &array)
return *this;
delete [] _data;
_size = array._size;
_capacity = _size + 32;
_data = new T[_capacity];
copy(array._data, array._data + _size, _data);
return *this;
}
uint size() const {
return _size;
}
void clear() {
delete [] _data;
_data = 0;
_size = 0;
_capacity = 0;
}
bool empty() const {
return (_size == 0);
}
iterator begin() {
return _data;
}
iterator end() {
return _data + _size;
}
const_iterator begin() const {
return _data;
}
const_iterator end() const {
return _data + _size;
}
void reserve(uint newCapacity) {
if (newCapacity <= _capacity)
return;
T *old_data = _data;
_capacity = newCapacity;
_data = new T[newCapacity];
if (old_data) {
// Copy old data
copy(old_data, old_data + _size, _data);
delete [] old_data;
}
}
void resize(uint newSize) {
if (newSize == _size)
return;
T *old_data = _data;
_capacity = newSize;
_data = new T[newSize];
if (old_data) {
// Copy old data
int cnt = (_size < newSize ? _size : newSize);
copy(old_data, old_data + cnt, _data);
delete [] old_data;
}
_size = newSize;
}
protected:
void ensureCapacity(uint len) {
if (len >= _capacity)
reserve(len + 32);
}
};
} // End of namespace Common
#endif
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