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122 lines
4.2 KiB
122 lines
4.2 KiB
/*
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* This file is part of Chalk
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*
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* Copyright (c) 2006 Cyrille Berger <cberger@cberger.net>
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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; version 2 of the License.
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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 "kis_perspectivetransform_worker.h"
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#include "kis_iterators_pixel.h"
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#include "kis_paint_device.h"
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#include "kis_perspective_math.h"
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#include "kis_progress_display_interface.h"
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#include "kis_random_sub_accessor.h"
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#include "kis_selection.h"
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KisPerspectiveTransformWorker::KisPerspectiveTransformWorker(KisPaintDeviceSP dev, const KisPoint& topLeft, const KisPoint& topRight, const KisPoint& bottomLeft, const KisPoint& bottomRight, KisProgressDisplayInterface *progress)
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: KisProgressSubject(), m_dev(dev), m_cancelRequested(false), m_progress(progress)
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{
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TQRect m_r;
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if(m_dev->hasSelection())
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m_r = m_dev->selection()->selectedExactRect();
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else
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m_r = m_dev->exactBounds();
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/* if(m_dev->hasSelection())
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m_dev->selection()->clear();*/
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kdDebug() << "r = " << m_r << endl;
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double* b = KisPerspectiveMath::computeMatrixTransfoToPerspective(topLeft, topRight, bottomLeft, bottomRight, m_r);
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for(int i = 0; i < 3; i++)
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{
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for(int j = 0; j < 3; j++)
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{
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kdDebug() << "sol[" << 3*i+j << "]=" << b[3*i+j] << endl;
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m_matrix[i][j] = b[3*i+j];
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}
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}
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delete b;
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}
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KisPerspectiveTransformWorker::~KisPerspectiveTransformWorker()
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{
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}
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double norm2(const KisPoint& p)
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{
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return sqrt(p.x() * p.x() + p.y() * p.y() );
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}
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void KisPerspectiveTransformWorker::run()
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{
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kdDebug() << "r = " << m_r << endl;
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//TODO: understand why my caching of the rect didn't work...
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if(m_dev->hasSelection())
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{
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m_r = m_dev->selection()->selectedExactRect();
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}
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else
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{
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m_r = m_dev->exactBounds();
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}
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// KisColorSpace * cs = m_dev->colorSpace();
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kdDebug() << "r = " << m_r << endl;
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KisRectIteratorPixel dstIt = m_dev->createRectIterator(m_r.x(), m_r.y(), m_r.width(), m_r.height(), true);
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KisPaintDeviceSP srcdev = new KisPaintDevice(*m_dev.data());
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{ // ensure that the random sub accessor is deleted first
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KisRandomSubAccessorPixel srcAcc = srcdev->createRandomSubAccessor();
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// Initialise progress
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if(m_progress)
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m_progress->setSubject(this, true, true);
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m_lastProgressReport = 0;
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m_progressStep = 0;
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m_progressTotalSteps = m_r.width() * m_r.height();
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//Action
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while(!dstIt.isDone())
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{
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if(dstIt.isSelected())
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{
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KisPoint p;
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double sf = ( dstIt.x() * m_matrix[2][0] + dstIt.y() * m_matrix[2][1] + 1.0);
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sf = (sf == 0.) ? 1. : 1./sf;
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p.setX( ( dstIt.x() * m_matrix[0][0] + dstIt.y() * m_matrix[0][1] + m_matrix[0][2] ) * sf );
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p.setY( ( dstIt.x() * m_matrix[1][0] + dstIt.y() * m_matrix[1][1] + m_matrix[1][2] ) * sf );
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srcAcc.moveTo( p );
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srcAcc.sampledOldRawData( dstIt.rawData() );
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// TODO: Should set alpha = alpha*(1-selectedness)
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// cs->setAlpha( dstIt.rawData(), 255, 1);
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} else {
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// cs->setAlpha( dstIt.rawData(), 0, 1);
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}
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m_progressStep ++;
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if(m_lastProgressReport != (m_progressStep * 100) / m_progressTotalSteps)
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{
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m_lastProgressReport = (m_progressStep * 100) / m_progressTotalSteps;
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emit notifyProgress(m_lastProgressReport);
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}
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if (m_cancelRequested) {
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break;
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}
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++dstIt;
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}
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}
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}
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