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q3memarray.h

/****************************************************************************
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the Qt3Support module of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at sales@trolltech.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#ifndef Q3MEMARRAY_H
#define Q3MEMARRAY_H

#include <Qt3Support/q3garray.h>
#include <QtCore/qvector.h>

QT_BEGIN_HEADER

QT_MODULE(Qt3SupportLight)

template<class type>
class Q3MemArray : public Q3GArray
{
public:
    typedef type* Iterator;
    typedef const type* ConstIterator;
    typedef type ValueType;

protected:
    Q3MemArray(int, int) : Q3GArray(0, 0) {}

public:
    Q3MemArray() {}
    Q3MemArray(int size) : Q3GArray(size*sizeof(type)) {}
    Q3MemArray(const Q3MemArray<type> &a) : Q3GArray(a) {}
    Q3MemArray(const QVector<type> &vector);
   ~Q3MemArray() {}
    Q3MemArray<type> &operator=(const Q3MemArray<type> &a)
                        { return (Q3MemArray<type>&)Q3GArray::assign(a); }
    type *data()    const     { return (type *)Q3GArray::data(); }
    uint  nrefs()   const     { return Q3GArray::nrefs(); }
    uint  size()    const     { return Q3GArray::size()/sizeof(type); }
    uint  count()   const     { return size(); }
    bool  isEmpty() const     { return Q3GArray::size() == 0; }
    bool  isNull()  const     { return Q3GArray::data() == 0; }
    bool  resize(uint size)   { return Q3GArray::resize(size*sizeof(type)); }
    bool  resize(uint size, Optimization optim) { return Q3GArray::resize(size*sizeof(type), optim); }
    bool  truncate(uint pos)  { return Q3GArray::resize(pos*sizeof(type)); }
    bool  fill(const type &d, int size = -1)
      { return Q3GArray::fill((char*)&d,size,sizeof(type)); }
    void  detach()            { Q3GArray::detach(); }
    Q3MemArray<type>   copy() const
      { Q3MemArray<type> tmp; return tmp.duplicate(*this); }
    Q3MemArray<type>& assign(const Q3MemArray<type>& a)
      { return (Q3MemArray<type>&)Q3GArray::assign(a); }
    Q3MemArray<type>& assign(const type *a, uint n)
      { return (Q3MemArray<type>&)Q3GArray::assign((char*)a,n*sizeof(type)); }
    Q3MemArray<type>& duplicate(const Q3MemArray<type>& a)
      { return (Q3MemArray<type>&)Q3GArray::duplicate(a); }
    Q3MemArray<type>& duplicate(const type *a, uint n)
      { return (Q3MemArray<type>&)Q3GArray::duplicate((char*)a,n*sizeof(type)); }
    Q3MemArray<type>& setRawData(const type *a, uint n)
      { return (Q3MemArray<type>&)Q3GArray::setRawData((char*)a,
                                         n*sizeof(type)); }
    void resetRawData(const type *a, uint n)
      { Q3GArray::resetRawData((char*)a,n*sizeof(type)); }
    int      find(const type &d, uint i=0) const
      { return Q3GArray::find((char*)&d,i,sizeof(type)); }
    int      contains(const type &d) const
      { return Q3GArray::contains((char*)&d,sizeof(type)); }
    void sort() { Q3GArray::sort(sizeof(type)); }
    int  bsearch(const type &d) const
      { return Q3GArray::bsearch((const char*)&d,sizeof(type)); }
    // ### Qt 4.0: maybe provide uint overload as work-around for MSVC bug
    type& operator[](int i) const
      { return (type &)(*(type *)Q3GArray::at(i*sizeof(type))); }
    type& at(uint i) const
      { return (type &)(*(type *)Q3GArray::at(i*sizeof(type))); }
       operator const type*() const { return (const type *)Q3GArray::data(); }
    bool operator==(const Q3MemArray<type> &a) const { return isEqual(a); }
    bool operator!=(const Q3MemArray<type> &a) const { return !isEqual(a); }
    Iterator begin() { return data(); }
    Iterator end() { return data() + size(); }
    ConstIterator begin() const { return data(); }
    ConstIterator end() const { return data() + size(); }

    operator QVector<type>() const;
};

template<class type>
Q_OUTOFLINE_TEMPLATE Q3MemArray<type>::Q3MemArray(const QVector<type> &vector)
    : Q3GArray(vector.size()*sizeof(type))
{
    for (int i = 0; i < vector.size(); ++i)
        at(i) = vector.at(i);
}

template<class type>
Q_OUTOFLINE_TEMPLATE Q3MemArray<type>::operator QVector<type>() const
{
    QVector<type> vector;
    for (int i = 0; i < size(); ++i)
        vector.append(at(i));
    return vector;
}

QT_END_HEADER

#endif // Q3MEMARRAY_H

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