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155 lines
4.0 KiB
155 lines
4.0 KiB
/*
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* This file is part of the Chalk
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*
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* Copyright (c) 2004 Casper Boemann <cbr@boemann.dk>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <kdebug.h>
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#include "kis_tile_global.h"
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#include "kis_tilediterator.h"
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KisTiledVLineIterator::KisTiledVLineIterator( KisTiledDataManager *ndevice, TQ_INT32 x, TQ_INT32 y, TQ_INT32 h, bool writable) :
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KisTiledIterator(ndevice),
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m_bottom(y + h - 1)
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{
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m_writable = writable;
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m_top = y;
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m_x = x;
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m_y = y;
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// Find tile row,col matching x,y
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m_col = xToCol(m_x);
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m_topRow = yToRow(m_y);
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m_bottomRow = yToRow(m_bottom);
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m_row = m_topRow;
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// calc limits within the tile
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m_xInTile = m_x - m_col * KisTile::WIDTH;
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m_topInTile = m_y - m_topRow * KisTile::HEIGHT;
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if(m_row == m_bottomRow)
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m_bottomInTile = m_bottom - m_bottomRow * KisTile::HEIGHT;
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else
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m_bottomInTile = KisTile::HEIGHT - 1;
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m_yInTile = m_topInTile;
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fetchTileData(m_col, m_row);
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m_offset = m_pixelSize * (m_yInTile * KisTile::WIDTH + m_xInTile);
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}
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KisTiledVLineIterator::KisTiledVLineIterator(const KisTiledVLineIterator& rhs)
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: KisTiledIterator(rhs)
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{
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if (this != &rhs) {
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m_top = rhs.m_top;
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m_bottom = rhs.m_bottom;
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m_topRow = rhs.m_topRow;
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m_bottomRow = rhs.m_bottomRow;
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m_xInTile = rhs.m_xInTile;
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m_yInTile = rhs.m_yInTile;
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m_topInTile = rhs.m_topInTile;
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m_bottomInTile = rhs.m_bottomInTile;
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}
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}
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KisTiledVLineIterator& KisTiledVLineIterator::operator=(const KisTiledVLineIterator& rhs)
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{
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if (this != &rhs) {
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KisTiledIterator::operator=(rhs);
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m_top = rhs.m_top;
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m_bottom = rhs.m_bottom;
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m_topRow = rhs.m_topRow;
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m_bottomRow = rhs.m_bottomRow;
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m_xInTile = rhs.m_xInTile;
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m_yInTile = rhs.m_yInTile;
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m_topInTile = rhs.m_topInTile;
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m_bottomInTile = rhs.m_bottomInTile;
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}
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return *this;
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}
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KisTiledVLineIterator::~KisTiledVLineIterator( )
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{
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}
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KisTiledVLineIterator & KisTiledVLineIterator::operator ++ ()
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{
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if(m_yInTile >= m_bottomInTile)
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{
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nextTile();
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fetchTileData(m_col, m_row);
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m_yInTile =m_topInTile;
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m_offset = m_pixelSize * (m_yInTile * KisTile::WIDTH + m_xInTile);
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}
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else
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{
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m_yInTile++;
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m_offset += m_pixelSize * KisTile::WIDTH;
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}
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m_y++;
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return *this;
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}
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void KisTiledVLineIterator::nextTile()
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{
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if(m_row < m_bottomRow)
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{
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m_row++;
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m_topInTile = 0;
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if(m_row == m_bottomRow)
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m_bottomInTile = m_bottom - m_bottomRow * KisTile::HEIGHT;
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else
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m_bottomInTile = KisTile::HEIGHT - 1;
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}
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}
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void KisTiledVLineIterator::nextCol()
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{
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m_x++;
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m_xInTile++;
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m_y = m_top;
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m_topInTile = m_y - m_topRow * KisTile::HEIGHT;
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m_yInTile = m_topInTile;
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if( m_xInTile >= KisTile::WIDTH )
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{ // Need a new row
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m_xInTile = 0;
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m_col++;
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m_row = m_topRow;
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fetchTileData(m_col, m_row);
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} else if( m_topRow != m_row ) {
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m_row = m_topRow;
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fetchTileData(m_col, m_row);
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}
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if(m_row == m_bottomRow)
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m_bottomInTile = m_bottom - m_bottomRow * KisTile::HEIGHT;
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else
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m_bottomInTile = KisTile::HEIGHT - 1;
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m_offset = m_pixelSize * (m_yInTile * KisTile::WIDTH + m_xInTile);
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}
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/*
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KisTiledVLineIterator & KisTiledVLineIterator::operator -- ()
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{
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return *this;
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}
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*/
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