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155 lines
4.7 KiB
155 lines
4.7 KiB
/*
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* Copyright (c) 2002 Patrick Julien <freak@codepimps.org>
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* Copyright (c) 2004 Boudewijn Rempt <boud@valdyas.org>
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* Copyright (c) 2004 Clarence Dang <dang@kde.org>
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* Copyright (c) 2004 Adrian Page <adrian@pagenet.plus.com>
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* Copyright (c) 2004 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; 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 <tqrect.h>
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#include <kdebug.h>
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#include "kis_brush.h"
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#include "kis_global.h"
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#include "kis_paint_device.h"
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#include "kis_painter.h"
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#include "kis_types.h"
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#include "kis_iterators_pixel.h"
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#include "kis_paintop.h"
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#include "kis_colorspace.h"
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#include "kis_selection.h"
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#include "kis_filterop.h"
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KisPaintOp * KisFilterOpFactory::createOp(const KisPaintOpSettings */*settings*/, KisPainter * painter)
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{
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KisPaintOp * op = new KisFilterOp(painter);
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return op;
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}
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KisFilterOp::KisFilterOp(KisPainter * painter)
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: super(painter)
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{
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m_filterConfiguration = 0;
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}
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KisFilterOp::~KisFilterOp()
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{
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delete m_filterConfiguration;
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}
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void KisFilterOp::paintAt(const KisPoint &pos, const KisPaintInformation& info)
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{
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if (!m_painter) return;
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KisFilterSP filter = m_painter->filter();
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if (!filter) return;
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if ( ! m_source ) return;
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KisBrush * brush = m_painter->brush();
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if (!brush) return;
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KisColorSpace * colorSpace = m_source->colorSpace();
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KisPoint hotSpot = brush->hotSpot(info);
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KisPoint pt = pos - hotSpot;
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// Split the coordinates into integer plus fractional parts. The integer
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// is where the dab will be positioned and the fractional part determines
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// the sub-pixel positioning.
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TQ_INT32 x;
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double xFraction;
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TQ_INT32 y;
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double yFraction;
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splitCoordinate(pt.x(), &x, &xFraction);
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splitCoordinate(pt.y(), &y, &yFraction);
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// Filters always work with a mask, never with an image; that
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// wouldn't be useful at all.
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KisAlphaMaskSP mask = brush->mask(info, xFraction, yFraction);
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m_painter->setPressure(info.pressure);
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TQ_INT32 maskWidth = mask->width();
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TQ_INT32 maskHeight = mask->height();
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// Create a temporary paint device
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KisPaintDeviceSP tmpDev = new KisPaintDevice(colorSpace, "filterop tmpdev");
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TQ_CHECK_PTR(tmpDev);
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// Copy the layer data onto the new paint device
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KisPainter p( tmpDev );
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p.bitBlt( 0, 0, COMPOSITE_COPY, m_source, OPACITY_OPAQUE, x, y, maskWidth, maskHeight );
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// Filter the paint device
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filter->disableProgress();
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filter->process( tmpDev, tmpDev, m_filterConfiguration, TQRect( 0, 0, maskWidth, maskHeight ));
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filter->enableProgress();
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// Apply the mask on the paint device (filter before mask because edge pixels may be important)
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for (int y = 0; y < maskHeight; y++)
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{
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KisHLineIterator hiter = tmpDev->createHLineIterator(0, y, maskWidth, false);
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int x=0;
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while(! hiter.isDone())
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{
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TQ_UINT8 alpha = mask->alphaAt( x++, y );
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colorSpace->setAlpha(hiter.rawData(), alpha, 1);
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++hiter;
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}
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}
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// Blit the paint device onto the layer
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TQRect dabRect = TQRect(0, 0, maskWidth, maskHeight);
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TQRect dstRect = TQRect(x, y, dabRect.width(), dabRect.height());
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KisImage * image = m_painter->device()->image();
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if (image != 0) {
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dstRect &= image->bounds();
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}
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if (dstRect.isNull() || dstRect.isEmpty() || !dstRect.isValid()) return;
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TQ_INT32 sx = dstRect.x() - x;
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TQ_INT32 sy = dstRect.y() - y;
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TQ_INT32 sw = dstRect.width();
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TQ_INT32 sh = dstRect.height();
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if (m_source->hasSelection()) {
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m_painter->bltSelection(dstRect.x(), dstRect.y(), m_painter->compositeOp(), tmpDev.data(),
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m_source->selection(), m_painter->opacity(), sx, sy, sw, sh);
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}
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else {
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m_painter->bitBlt(dstRect.x(), dstRect.y(), m_painter->compositeOp(), tmpDev.data(), m_painter->opacity(), sx, sy, sw, sh);
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}
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m_painter->addDirtyRect(dstRect);
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}
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void KisFilterOp::setFilterConfiguration(KisFilterConfiguration* filterConfiguration)
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{
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delete m_filterConfiguration;
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m_filterConfiguration = filterConfiguration;
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}
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