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/*
* Copyright (c) 2002 Patrick Julien <freak@codepimps.org>
* Copyright (c) 2004 Boudewijn Rempt <boud@valdyas.org>
* Copyright (c) 2004 Clarence Dang <dang@kde.org>
* Copyright (c) 2004 Adrian Page <adrian@pagenet.plus.com>
* Copyright (c) 2004 Cyrille Berger <cberger@cberger.net>
*
* 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 "qwidget.h"
#include "kis_painter.h"
#include "kis_layer.h"
#include "kis_types.h"
#include "kis_paintop.h"
#include "kis_alpha_mask.h"
#include "kis_point.h"
#include "kis_colorspace.h"
#include "kis_global.h"
#include "kis_iterators_pixel.h"
#include "kis_color.h"
KisPaintOp::KisPaintOp(KisPainter * painter)
: m_dab(0)
{
m_painter = painter;
setSource(painter->device());
}
KisPaintOp::~KisPaintOp()
{
}
KisPaintDeviceSP KisPaintOp::computeDab(KisAlphaMaskSP mask) {
return computeDab(mask, m_painter->device()->colorSpace());
}
KisPaintDeviceSP KisPaintOp::computeDab(KisAlphaMaskSP mask, KisColorSpace *cs)
{
// XXX: According to the SeaShore source, the Gimp uses a
// temporary layer the size of the layer that is being painted
// on. This layer is cleared between painting actions. Our
// temporary layer, dab, is for every paintAt, composited with
// the target layer. We only use a real temporary layer for things
// like filter tools.
if(!m_dab || m_dab->colorSpace() != cs)
m_dab = new KisPaintDevice(cs, "dab");
Q_CHECK_PTR(m_dab);
KisColor kc = m_painter->paintColor();
KisColorSpace * colorSpace = m_dab->colorSpace();
Q_INT32 pixelSize = colorSpace->pixelSize();
Q_INT32 maskWidth = mask->width();
Q_INT32 maskHeight = mask->height();
// Convert the kiscolor to the right colorspace.
kc.convertTo(colorSpace);
KisHLineIteratorPixel hiter = m_dab->createHLineIterator(0, 0, maskWidth, true);
for (int y = 0; y < maskHeight; y++)
{
int x=0;
while(! hiter.isDone())
{
// XXX: Set mask
colorSpace->setAlpha(kc.data(), mask->alphaAt(x++, y), 1);
memcpy(hiter.rawData(), kc.data(), pixelSize);
++hiter;
}
hiter.nextRow();
}
return m_dab;
}
void KisPaintOp::splitCoordinate(double coordinate, Q_INT32 *whole, double *fraction)
{
Q_INT32 i = static_cast<Q_INT32>(coordinate);
if (coordinate < 0) {
// We always want the fractional part to be positive.
// E.g. -1.25 becomes -2 and +0.75
i--;
}
double f = coordinate - i;
*whole = i;
*fraction = f;
}
void KisPaintOp::setSource(KisPaintDeviceSP p) {
Q_ASSERT(p);
m_source = p;
}
KisPaintOpSettings* KisPaintOpFactory::settings(QWidget* /*parent*/, const KisInputDevice& /*inputDevice*/) { return 0; }
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