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133 líneas
3.9 KiB
133 líneas
3.9 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 "tdelocale.h"
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#include "kis_layer.h"
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#include "kis_painter.h"
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#include "kis_types.h"
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#include "kis_paintop.h"
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#include "kis_iterator.h"
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#include "kis_selection.h"
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#include "kis_iterators_pixel.h"
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#include "kis_penop.h"
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KisPaintOp * KisPenOpFactory::createOp(const KisPaintOpSettings */*settings*/, KisPainter * painter)
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{
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KisPaintOp * op = new KisPenOp(painter);
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TQ_CHECK_PTR(op);
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return op;
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}
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KisPenOp::KisPenOp(KisPainter * painter)
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: super(painter)
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{
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}
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KisPenOp::~KisPenOp()
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{
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}
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void KisPenOp::paintAt(const KisPoint &pos, const KisPaintInformation& info)
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{
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if (!m_painter) return;
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KisPaintDeviceSP device = m_painter->device();
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if (!device) return;
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KisBrush * brush = m_painter->brush();
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if (!brush) return;
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if (! brush->canPaintFor(info) )
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return;
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KisPoint hotSpot = brush->hotSpot(info);
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KisPoint pt = pos - hotSpot;
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TQ_INT32 x = pt.roundX();
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TQ_INT32 y = pt.roundY();
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KisPaintDeviceSP dab = 0;
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if (brush->brushType() == IMAGE ||
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brush->brushType() == PIPE_IMAGE) {
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dab = brush->image(device->colorSpace(), info);
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}
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else {
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// Compute mask without sub-pixel positioning
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KisAlphaMaskSP mask = brush->mask(info);
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dab = computeDab(mask);
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}
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m_painter->setPressure(info.pressure);
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TQRect dabRect = TQRect(0, 0, brush->maskWidth(info), brush->maskHeight(info));
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TQRect dstRect = TQRect(x, y, dabRect.width(), dabRect.height());
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KisImage * image = 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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KisColorSpace * cs = dab->colorSpace();
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// Set all alpha > opaque/2 to opaque, the rest to transparent.
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// XXX: Using 4/10 as the 1x1 circle brush paints nothing with 0.5.
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KisRectIteratorPixel pixelIt = dab->createRectIterator(dabRect.x(), dabRect.y(), dabRect.width(), dabRect.height(), true);
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while (!pixelIt.isDone()) {
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TQ_UINT8 alpha = cs->getAlpha(pixelIt.rawData());
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if (alpha < (4 * OPACITY_OPAQUE) / 10) {
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cs->setAlpha(pixelIt.rawData(), OPACITY_TRANSPARENT, 1);
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} else {
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cs->setAlpha(pixelIt.rawData(), OPACITY_OPAQUE, 1);
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}
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++pixelIt;
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}
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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(), dab.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(), dab.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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