kis_iterator.h

/* This file is part of the KDE project
 *   Copyright (c) 2004 Casper Boemann <cbr@boemann.dkt>
 *
 *  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.
 
*/
#ifndef KIS_ITERATOR_H_
#define KIS_ITERATOR_H_
 
#include <tqglobal.h>
#include <ksharedptr.h>
 
class KisTiledRectIterator;
typedef TDESharedPtr<KisTiledRectIterator> KisTiledRectIteratorSP;
 
class KisTiledVLineIterator;
typedef TDESharedPtr<KisTiledVLineIterator> KisTiledVLineIteratorSP;
 
class KisTiledHLineIterator;
typedef TDESharedPtr<KisTiledHLineIterator> KisTiledHLineIteratorSP;
 
class KisDataManager;

class KisRectIterator
{
 
 
public:
    KisRectIterator ( KisDataManager *dm, TQ_INT32  x, TQ_INT32  y, TQ_INT32  w, TQ_INT32  h, bool writable);
 
public:
    virtual ~KisRectIterator();
    KisRectIterator(const KisRectIterator& rhs);
    KisRectIterator& operator=(const KisRectIterator& rhs);
 
 
public:
    TQ_UINT8 * rawData() const;

    const TQ_UINT8 * oldRawData() const;

    TQ_INT32 nConseqPixels() const;

    KisRectIterator & operator+=(int n);

    KisRectIterator & operator++();

    bool isDone()  const;
 
     // current x position
     TQ_INT32 x() const;
 
     // current y position
     TQ_INT32 y() const;
 
private:
 
    KisTiledRectIteratorSP m_iter;
};
 
class KisHLineIterator
{
 
public:
 
    KisHLineIterator ( KisDataManager *dm, TQ_INT32  x, TQ_INT32 y, TQ_INT32 w, bool writable);
 
public:
 
    virtual ~KisHLineIterator();
    KisHLineIterator(const KisHLineIterator& rhs);
    KisHLineIterator& operator=(const KisHLineIterator& rhs);
 
public:
    TQ_UINT8 *rawData() const;

    const TQ_UINT8 *oldRawData() const;

    KisHLineIterator & operator++();

    TQ_INT32 nConseqHPixels() const;

    KisHLineIterator & operator+=(int n);

    KisHLineIterator & operator--();

    bool isDone()  const;

    TQ_INT32 x() const;

    TQ_INT32 y() const;

    void nextRow();
 
 
private:
 
    KisTiledHLineIteratorSP m_iter;
};
 
class KisVLineIterator
{
 
public:
    KisVLineIterator ( KisDataManager *dm, TQ_INT32  x, TQ_INT32 y, TQ_INT32  h, bool writable);
public:
    ~KisVLineIterator();
    KisVLineIterator(const KisVLineIterator& rhs);
    KisVLineIterator& operator=(const KisVLineIterator& rhs);
 
public:
    TQ_UINT8 *rawData() const;

    const TQ_UINT8 * oldRawData() const;

    KisVLineIterator & operator++();

    bool isDone() const;

    TQ_INT32 x() const;

    TQ_INT32 y() const;
    
    void nextCol();
 
private:
 
    KisTiledVLineIteratorSP m_iter;
 
};
 
#endif