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/*
* Copyright (c) 2005 Casper Boemann <cbr@boemann.dk>
*
* 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.
*/
#include "kis_global.h"
#include "kis_memento.h"
#include "kis_tile.h"
#include "kis_tile_global.h"
KisMemento::KisMemento(TQ_UINT32 pixelSize) : TDEShared()
{
m_hashTable = new KisTile * [1024];
TQ_CHECK_PTR(m_hashTable);
m_redoHashTable = new KisTile * [1024];
TQ_CHECK_PTR(m_redoHashTable);
for(int i = 0; i < 1024; i++)
{
m_hashTable [i] = 0;
m_redoHashTable [i] = 0;
}
m_numTiles = 0;
m_defPixel = new TQ_UINT8[pixelSize];
m_redoDefPixel = new TQ_UINT8[pixelSize];
m_valid = true;
}
KisMemento::~KisMemento()
{
// Deep delete every tile
for(int i = 0; i < 1024; i++)
{
deleteAll(m_hashTable[i]);
deleteAll(m_redoHashTable[i]);
}
delete [] m_hashTable;
delete [] m_redoHashTable;
// Delete defPixel arrays;
delete [] m_defPixel;
delete [] m_redoDefPixel;
}
KisMemento::DeletedTileList::~DeletedTileList()
{
clear();
}
void KisMemento::DeletedTileList::clear()
{
// They are not tiles just references. The actual tiles have already been deleted,
// so just delete the references.
const DeletedTile *deletedTile = m_firstDeletedTile;
while (deletedTile)
{
const DeletedTile *d = deletedTile;
deletedTile = deletedTile->next();
delete d;
}
m_firstDeletedTile = 0;
}
void KisMemento::deleteAll(KisTile *tile)
{
while(tile)
{
KisTile *deltile = tile;
tile = tile->getNext();
delete deltile;
}
}
void KisMemento::extent(TQ_INT32 &x, TQ_INT32 &y, TQ_INT32 &w, TQ_INT32 &h) const
{
TQ_INT32 maxX = TQ_INT32_MIN;
TQ_INT32 maxY = TQ_INT32_MIN;
x = TQ_INT32_MAX;
y = TQ_INT32_MAX;
for(int i = 0; i < 1024; i++)
{
KisTile *tile = m_hashTable[i];
while(tile)
{
if(x > tile->getCol() * KisTile::WIDTH)
x = tile->getCol() * KisTile::WIDTH;
if(maxX < (tile->getCol() + 1) * KisTile::WIDTH - 1)
maxX = (tile->getCol() + 1) * KisTile::WIDTH - 1;
if(y > tile->getRow() * KisTile::HEIGHT)
y = tile->getRow() * KisTile::HEIGHT;
if(maxY < (tile->getRow() +1) * KisTile::HEIGHT - 1)
maxY = (tile->getRow() +1) * KisTile::HEIGHT - 1;
tile = tile->getNext();
}
}
if(maxX < x)
w = 0;
else
w = maxX - x +1;
if(maxY < y)
h = 0;
else
h = maxY - y +1;
}
TQRect KisMemento::extent() const
{
TQ_INT32 x;
TQ_INT32 y;
TQ_INT32 w;
TQ_INT32 h;
extent(x, y, w, h);
return TQRect(x, y, w, h);
}
bool KisMemento::containsTile(TQ_INT32 col, TQ_INT32 row, TQ_UINT32 tileHash) const
{
const KisTile *tile = m_hashTable[tileHash];
while (tile != 0)
{
if (tile->getRow() == row && tile->getCol() == col) {
return true;
}
tile = tile->getNext();
}
return false;
}
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