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/*
* Copyright (c) 2005 Casper Boemann <[email protected]>
*
* 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_MEMENTO_H_
#define KIS_MEMENTO_H_
#include <tqglobal.h>
#include <tqrect.h>
#include <ksharedptr.h>
class KisTile;
class KisTiledDataManager;
class KisMemento;
typedef TDESharedPtr<KisMemento> KisMementoSP;
class KisMemento : public TDEShared
{
public:
KisMemento(TQ_UINT32 pixelSize);
~KisMemento();
/*
// For consolidating transactions
virtual KisTransaction &operator+=(const KisTransaction &) = 0;
// For consolidating transactions
virtual KisTransaction &operator+(const KisTransaction &,
const KisTransaction &) = 0;
*/
void extent(TQ_INT32 &x, TQ_INT32 &y, TQ_INT32 &w, TQ_INT32 &h) const;
TQRect extent() const;
bool containsTile(TQ_INT32 col, TQ_INT32 row, TQ_UINT32 tileHash) const;
// For debugging use
bool valid() const { return m_valid; }
void setInvalid() { m_valid = false; }
private:
class DeletedTile {
public:
DeletedTile(TQ_INT32 col, TQ_INT32 row, const DeletedTile *next)
: m_col(col),
m_row(row),
m_next(next)
{
}
TQ_INT32 col() const { return m_col; }
TQ_INT32 row() const { return m_row; }
const DeletedTile *next() const { return m_next; }
private:
TQ_INT32 m_col;
TQ_INT32 m_row;
const DeletedTile *m_next;
};
class DeletedTileList {
public:
DeletedTileList()
: m_firstDeletedTile(0)
{
}
~DeletedTileList();
void addTile(TQ_INT32 col, TQ_INT32 row)
{
DeletedTile *d = new DeletedTile(col, row, m_firstDeletedTile);
TQ_CHECK_PTR(d);
m_firstDeletedTile = d;
}
DeletedTile *firstTile() const
{
return m_firstDeletedTile;
}
void clear();
private:
DeletedTile *m_firstDeletedTile;
};
void addTileToDeleteOnRedo(TQ_INT32 col, TQ_INT32 row)
{
m_redoDelTilesList.addTile(col, row);
}
DeletedTile *tileListToDeleteOnRedo()
{
return m_redoDelTilesList.firstTile();
}
void clearTilesToDeleteOnRedo()
{
m_redoDelTilesList.clear();
}
void addTileToDeleteOnUndo(TQ_INT32 col, TQ_INT32 row)
{
m_undoDelTilesList.addTile(col, row);
}
DeletedTile *tileListToDeleteOnUndo()
{
return m_undoDelTilesList.firstTile();
}
void clearTilesToDeleteOnUndo()
{
m_undoDelTilesList.clear();
}
friend class KisTiledDataManager;
KisTiledDataManager *originator;
KisTile **m_hashTable;
TQ_UINT32 m_numTiles;
KisTile **m_redoHashTable;
DeletedTileList m_redoDelTilesList;
DeletedTileList m_undoDelTilesList;
TQ_UINT8 *m_defPixel;
TQ_UINT8 *m_redoDefPixel;
void deleteAll(KisTile *tile);
bool m_valid;
};
#endif // KIS_MEMENTO_H_
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