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583 lines
20 KiB
583 lines
20 KiB
/*
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* Copyright (c) 2004 Boudewijn Rempt <boud@valdyas.org>
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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., 675 mass ave, cambridge, ma 02139, usa.
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*/
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#include <qimage.h>
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#include <kdebug.h>
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#include <klocale.h>
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#include <qcolor.h>
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#include "kis_layer.h"
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#include "kis_debug_areas.h"
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#include "kis_types.h"
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#include "kis_colorspace_factory_registry.h"
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#include "kis_fill_painter.h"
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#include "kis_iterators_pixel.h"
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#include "kis_integer_maths.h"
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#include "kis_image.h"
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#include "kis_datamanager.h"
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#include "kis_fill_painter.h"
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#include "kis_selection.h"
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KisSelection::KisSelection(KisPaintDeviceSP dev)
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: super(dev->parentLayer()
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, KisMetaRegistry::instance()->csRegistry()->getAlpha8()
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, (QString("selection for ") + dev->name()).latin1())
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, m_parentPaintDevice(dev)
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, m_doCacheExactRect(false)
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, m_dirty(false)
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{
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Q_ASSERT(dev);
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}
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KisSelection::KisSelection()
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: super(KisMetaRegistry::instance()->csRegistry()->getAlpha8(), "anonymous selection")
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, m_parentPaintDevice(0), m_dirty(false)
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{
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}
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KisSelection::KisSelection(const KisSelection& rhs)
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: super(rhs), m_parentPaintDevice(rhs.m_parentPaintDevice), m_doCacheExactRect(rhs.m_doCacheExactRect),
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m_cachedExactRect(rhs.m_cachedExactRect), m_dirty(rhs.m_dirty)
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{
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}
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KisSelection::~KisSelection()
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{
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}
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Q_UINT8 KisSelection::selected(Q_INT32 x, Q_INT32 y)
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{
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KisHLineIteratorPixel iter = createHLineIterator(x, y, 1, false);
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Q_UINT8 *pix = iter.rawData();
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return *pix;
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}
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void KisSelection::setSelected(Q_INT32 x, Q_INT32 y, Q_UINT8 s)
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{
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KisHLineIteratorPixel iter = createHLineIterator(x, y, 1, true);
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Q_UINT8 *pix = iter.rawData();
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*pix = s;
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}
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QImage KisSelection::maskImage()
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{
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// If part of a KisAdjustmentLayer, there may be no parent device.
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QImage img;
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QRect bounds;
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if (m_parentPaintDevice) {
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bounds = m_parentPaintDevice->exactBounds();
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bounds = bounds.intersect( m_parentPaintDevice->image()->bounds() );
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img = QImage(bounds.width(), bounds.height(), 32);
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}
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else {
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bounds = QRect( 0, 0, image()->width(), image()->height());
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img = QImage(bounds.width(), bounds.height(), 32);
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}
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KisHLineIteratorPixel it = createHLineIterator(bounds.x(), bounds.y(), bounds.width(), false);
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for (int y2 = bounds.y(); y2 < bounds.height() - bounds.y(); ++y2) {
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int x2 = 0;
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while (!it.isDone()) {
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Q_UINT8 s = MAX_SELECTED - *(it.rawData());
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Q_INT32 c = qRgb(s, s, s);
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img.setPixel(x2, y2, c);
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++x2;
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++it;
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}
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it.nextRow();
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}
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return img;
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}
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void KisSelection::select(QRect r)
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{
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KisFillPainter painter(this);
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KisColorSpace * cs = KisMetaRegistry::instance()->csRegistry()->getRGB8();
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painter.fillRect(r, KisColor(Qt::white, cs), MAX_SELECTED);
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Q_INT32 x, y, w, h;
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extent(x, y, w, h);
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}
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void KisSelection::clear(QRect r)
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{
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KisFillPainter painter(this);
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KisColorSpace * cs = KisMetaRegistry::instance()->csRegistry()->getRGB8();
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painter.fillRect(r, KisColor(Qt::white, cs), MIN_SELECTED);
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}
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void KisSelection::clear()
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{
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Q_UINT8 defPixel = MIN_SELECTED;
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m_datamanager->setDefaultPixel(&defPixel);
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m_datamanager->clear();
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}
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void KisSelection::invert()
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{
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Q_INT32 x,y,w,h;
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extent(x, y, w, h);
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KisRectIterator it = createRectIterator(x, y, w, h, true);
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while ( ! it.isDone() )
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{
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// CBR this is wrong only first byte is inverted
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// BSAR: But we have always only one byte in this color model :-).
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*(it.rawData()) = MAX_SELECTED - *(it.rawData());
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++it;
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}
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Q_UINT8 defPixel = MAX_SELECTED - *(m_datamanager->defaultPixel());
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m_datamanager->setDefaultPixel(&defPixel);
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}
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bool KisSelection::isTotallyUnselected(QRect r)
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{
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if(*(m_datamanager->defaultPixel()) != MIN_SELECTED)
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return false;
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QRect sr = selectedExactRect();
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return ! r.intersects(sr);
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}
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bool KisSelection::isProbablyTotallyUnselected(QRect r)
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{
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if(*(m_datamanager->defaultPixel()) != MIN_SELECTED)
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return false;
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QRect sr = selectedRect();
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return ! r.intersects(sr);
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}
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QRect KisSelection::selectedRect() const
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{
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if(*(m_datamanager->defaultPixel()) == MIN_SELECTED || !m_parentPaintDevice)
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return extent();
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else
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return extent().unite(m_parentPaintDevice->extent());
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}
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QRect KisSelection::selectedExactRect() const
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{
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if(m_doCacheExactRect)
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return m_cachedExactRect;
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else if(*(m_datamanager->defaultPixel()) == MIN_SELECTED || !m_parentPaintDevice)
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return exactBounds();
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else
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return exactBounds().unite(m_parentPaintDevice->exactBounds());
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}
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void KisSelection::stopCachingExactRect()
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{
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kdDebug() << "stop caching the exact rect" << endl;
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m_doCacheExactRect = false;
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}
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void KisSelection::startCachingExactRect()
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{
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kdDebug() << "start caching the exact rect" << endl;
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if(*(m_datamanager->defaultPixel()) == MIN_SELECTED || !m_parentPaintDevice)
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m_cachedExactRect = exactBounds();
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else
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m_cachedExactRect = exactBounds().unite(m_parentPaintDevice->exactBounds());
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m_doCacheExactRect = true;
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}
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void KisSelection::paintUniformSelectionRegion(QImage img, const QRect& imageRect, const QRegion& uniformRegion)
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{
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Q_ASSERT(img.size() == imageRect.size());
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Q_ASSERT(imageRect.contains(uniformRegion.boundingRect()));
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if (img.isNull() || img.size() != imageRect.size() || !imageRect.contains(uniformRegion.boundingRect())) {
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return;
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}
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if (*m_datamanager->defaultPixel() == MIN_SELECTED) {
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QRegion region = uniformRegion & QRegion(imageRect);
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if (!region.isEmpty()) {
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QMemArray<QRect> rects = region.rects();
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for (unsigned int i = 0; i < rects.count(); i++) {
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QRect r = rects[i];
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for (Q_INT32 y = 0; y < r.height(); ++y) {
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QRgb *imagePixel = reinterpret_cast<QRgb *>(img.scanLine(r.y() - imageRect.y() + y));
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imagePixel += r.x() - imageRect.x();
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Q_INT32 numPixels = r.width();
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while (numPixels > 0) {
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QRgb srcPixel = *imagePixel;
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Q_UINT8 srcGrey = (qRed(srcPixel) + qGreen(srcPixel) + qBlue(srcPixel)) / 9;
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Q_UINT8 srcAlpha = qAlpha(srcPixel);
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srcGrey = UINT8_MULT(srcGrey, srcAlpha);
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Q_UINT8 dstAlpha = QMAX(srcAlpha, 192);
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QRgb dstPixel = qRgba(128 + srcGrey, 128 + srcGrey, 165 + srcGrey, dstAlpha);
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*imagePixel = dstPixel;
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++imagePixel;
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--numPixels;
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}
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}
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}
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}
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}
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}
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void KisSelection::paintSelection(QImage img, Q_INT32 imageRectX, Q_INT32 imageRectY, Q_INT32 imageRectWidth, Q_INT32 imageRectHeight)
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{
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Q_ASSERT(img.size() == QSize(imageRectWidth, imageRectHeight));
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if (img.isNull() || img.size() != QSize(imageRectWidth, imageRectHeight)) {
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return;
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}
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QRect imageRect(imageRectX, imageRectY, imageRectWidth, imageRectHeight);
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QRect selectionExtent = extent();
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selectionExtent.setLeft(selectionExtent.left() - 1);
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selectionExtent.setTop(selectionExtent.top() - 1);
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selectionExtent.setWidth(selectionExtent.width() + 2);
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selectionExtent.setHeight(selectionExtent.height() + 2);
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QRegion uniformRegion = QRegion(imageRect);
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uniformRegion -= QRegion(selectionExtent);
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if (!uniformRegion.isEmpty()) {
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paintUniformSelectionRegion(img, imageRect, uniformRegion);
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}
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QRect nonuniformRect = imageRect & selectionExtent;
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if (!nonuniformRect.isEmpty()) {
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const Q_INT32 imageRectOffsetX = nonuniformRect.x() - imageRectX;
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const Q_INT32 imageRectOffsetY = nonuniformRect.y() - imageRectY;
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imageRectX = nonuniformRect.x();
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imageRectY = nonuniformRect.y();
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imageRectWidth = nonuniformRect.width();
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imageRectHeight = nonuniformRect.height();
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const Q_INT32 NUM_SELECTION_ROWS = 3;
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Q_UINT8 *selectionRow[NUM_SELECTION_ROWS];
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Q_INT32 aboveRowIndex = 0;
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Q_INT32 centreRowIndex = 1;
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Q_INT32 belowRowIndex = 2;
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selectionRow[aboveRowIndex] = new Q_UINT8[imageRectWidth + 2];
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selectionRow[centreRowIndex] = new Q_UINT8[imageRectWidth + 2];
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selectionRow[belowRowIndex] = new Q_UINT8[imageRectWidth + 2];
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readBytes(selectionRow[centreRowIndex], imageRectX - 1, imageRectY - 1, imageRectWidth + 2, 1);
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readBytes(selectionRow[belowRowIndex], imageRectX - 1, imageRectY, imageRectWidth + 2, 1);
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for (Q_INT32 y = 0; y < imageRectHeight; ++y) {
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Q_INT32 oldAboveRowIndex = aboveRowIndex;
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aboveRowIndex = centreRowIndex;
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centreRowIndex = belowRowIndex;
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belowRowIndex = oldAboveRowIndex;
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readBytes(selectionRow[belowRowIndex], imageRectX - 1, imageRectY + y + 1, imageRectWidth + 2, 1);
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const Q_UINT8 *aboveRow = selectionRow[aboveRowIndex] + 1;
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const Q_UINT8 *centreRow = selectionRow[centreRowIndex] + 1;
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const Q_UINT8 *belowRow = selectionRow[belowRowIndex] + 1;
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QRgb *imagePixel = reinterpret_cast<QRgb *>(img.scanLine(imageRectOffsetY + y));
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imagePixel += imageRectOffsetX;
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for (Q_INT32 x = 0; x < imageRectWidth; ++x) {
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Q_UINT8 centre = *centreRow;
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if (centre != MAX_SELECTED) {
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// this is where we come if the pixels should be blue or bluish
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QRgb srcPixel = *imagePixel;
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Q_UINT8 srcGrey = (qRed(srcPixel) + qGreen(srcPixel) + qBlue(srcPixel)) / 9;
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Q_UINT8 srcAlpha = qAlpha(srcPixel);
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// Colour influence is proportional to alphaPixel.
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srcGrey = UINT8_MULT(srcGrey, srcAlpha);
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QRgb dstPixel;
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if (centre == MIN_SELECTED) {
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//this is where we come if the pixels should be blue (or red outline)
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Q_UINT8 left = *(centreRow - 1);
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Q_UINT8 right = *(centreRow + 1);
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Q_UINT8 above = *aboveRow;
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Q_UINT8 below = *belowRow;
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// Stop unselected transparent areas from appearing the same
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// as selected transparent areas.
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Q_UINT8 dstAlpha = QMAX(srcAlpha, 192);
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// now for a simple outline based on 4-connectivity
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if (left != MIN_SELECTED || right != MIN_SELECTED || above != MIN_SELECTED || below != MIN_SELECTED) {
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dstPixel = qRgba(255, 0, 0, dstAlpha);
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} else {
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dstPixel = qRgba(128 + srcGrey, 128 + srcGrey, 165 + srcGrey, dstAlpha);
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}
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} else {
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dstPixel = qRgba(UINT8_BLEND(qRed(srcPixel), srcGrey + 128, centre),
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UINT8_BLEND(qGreen(srcPixel), srcGrey + 128, centre),
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UINT8_BLEND(qBlue(srcPixel), srcGrey + 165, centre),
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srcAlpha);
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}
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*imagePixel = dstPixel;
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}
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aboveRow++;
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centreRow++;
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belowRow++;
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imagePixel++;
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}
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}
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delete [] selectionRow[aboveRowIndex];
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delete [] selectionRow[centreRowIndex];
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delete [] selectionRow[belowRowIndex];
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}
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}
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void KisSelection::paintSelection(QImage img, const QRect& scaledImageRect, const QSize& scaledImageSize, const QSize& imageSize)
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{
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if (img.isNull() || scaledImageRect.isEmpty() || scaledImageSize.isEmpty() || imageSize.isEmpty()) {
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return;
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}
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Q_ASSERT(img.size() == scaledImageRect.size());
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if (img.size() != scaledImageRect.size()) {
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return;
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}
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Q_INT32 imageWidth = imageSize.width();
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Q_INT32 imageHeight = imageSize.height();
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QRect selectionExtent = extent();
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selectionExtent.setLeft(selectionExtent.left() - 1);
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selectionExtent.setTop(selectionExtent.top() - 1);
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selectionExtent.setWidth(selectionExtent.width() + 2);
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selectionExtent.setHeight(selectionExtent.height() + 2);
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double xScale = static_cast<double>(scaledImageSize.width()) / imageWidth;
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double yScale = static_cast<double>(scaledImageSize.height()) / imageHeight;
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QRect scaledSelectionExtent;
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scaledSelectionExtent.setLeft(static_cast<int>(selectionExtent.left() * xScale));
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scaledSelectionExtent.setRight(static_cast<int>(ceil((selectionExtent.right() + 1) * xScale)) - 1);
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scaledSelectionExtent.setTop(static_cast<int>(selectionExtent.top() * yScale));
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scaledSelectionExtent.setBottom(static_cast<int>(ceil((selectionExtent.bottom() + 1) * yScale)) - 1);
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QRegion uniformRegion = QRegion(scaledImageRect);
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uniformRegion -= QRegion(scaledSelectionExtent);
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if (!uniformRegion.isEmpty()) {
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paintUniformSelectionRegion(img, scaledImageRect, uniformRegion);
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}
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QRect nonuniformRect = scaledImageRect & scaledSelectionExtent;
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if (!nonuniformRect.isEmpty()) {
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const Q_INT32 scaledImageRectXOffset = nonuniformRect.x() - scaledImageRect.x();
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const Q_INT32 scaledImageRectYOffset = nonuniformRect.y() - scaledImageRect.y();
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const Q_INT32 scaledImageRectX = nonuniformRect.x();
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const Q_INT32 scaledImageRectY = nonuniformRect.y();
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const Q_INT32 scaledImageRectWidth = nonuniformRect.width();
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const Q_INT32 scaledImageRectHeight = nonuniformRect.height();
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const Q_INT32 imageRowLeft = static_cast<Q_INT32>(scaledImageRectX / xScale);
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const Q_INT32 imageRowRight = static_cast<Q_INT32>((ceil((scaledImageRectX + scaledImageRectWidth - 1 + 1) / xScale)) - 1);
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const Q_INT32 imageRowWidth = imageRowRight - imageRowLeft + 1;
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const Q_INT32 imageRowStride = imageRowWidth + 2;
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const Q_INT32 NUM_SELECTION_ROWS = 3;
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Q_INT32 aboveRowIndex = 0;
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Q_INT32 centreRowIndex = 1;
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Q_INT32 belowRowIndex = 2;
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Q_INT32 aboveRowSrcY = -3;
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Q_INT32 centreRowSrcY = -3;
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Q_INT32 belowRowSrcY = -3;
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Q_UINT8 *selectionRows = new Q_UINT8[imageRowStride * NUM_SELECTION_ROWS];
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Q_UINT8 *selectionRow[NUM_SELECTION_ROWS];
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selectionRow[0] = selectionRows + 1;
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selectionRow[1] = selectionRow[0] + imageRowStride;
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selectionRow[2] = selectionRow[0] + (2 * imageRowStride);
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for (Q_INT32 y = 0; y < scaledImageRectHeight; ++y) {
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Q_INT32 scaledY = scaledImageRectY + y;
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Q_INT32 srcY = (scaledY * imageHeight) / scaledImageSize.height();
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Q_UINT8 *aboveRow;
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Q_UINT8 *centreRow;
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Q_UINT8 *belowRow;
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if (srcY - 1 == aboveRowSrcY) {
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aboveRow = selectionRow[aboveRowIndex];
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centreRow = selectionRow[centreRowIndex];
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belowRow = selectionRow[belowRowIndex];
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} else if (srcY - 1 == centreRowSrcY) {
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Q_INT32 oldAboveRowIndex = aboveRowIndex;
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aboveRowIndex = centreRowIndex;
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centreRowIndex = belowRowIndex;
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belowRowIndex = oldAboveRowIndex;
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aboveRow = selectionRow[aboveRowIndex];
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centreRow = selectionRow[centreRowIndex];
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belowRow = selectionRow[belowRowIndex];
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readBytes(belowRow - 1, imageRowLeft - 1, srcY + 1, imageRowStride, 1);
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} else if (srcY - 1 == belowRowSrcY) {
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Q_INT32 oldAboveRowIndex = aboveRowIndex;
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Q_INT32 oldCentreRowIndex = centreRowIndex;
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aboveRowIndex = belowRowIndex;
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centreRowIndex = oldAboveRowIndex;
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belowRowIndex = oldCentreRowIndex;
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aboveRow = selectionRow[aboveRowIndex];
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centreRow = selectionRow[centreRowIndex];
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belowRow = selectionRow[belowRowIndex];
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if (belowRowIndex == centreRowIndex + 1) {
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readBytes(centreRow - 1, imageRowLeft - 1, srcY, imageRowStride, 2);
|
|
} else {
|
|
readBytes(centreRow - 1, imageRowLeft - 1, srcY, imageRowStride, 1);
|
|
readBytes(belowRow - 1, imageRowLeft - 1, srcY + 1, imageRowStride, 1);
|
|
}
|
|
|
|
} else {
|
|
|
|
aboveRowIndex = 0;
|
|
centreRowIndex = 1;
|
|
belowRowIndex = 2;
|
|
|
|
aboveRow = selectionRow[aboveRowIndex];
|
|
centreRow = selectionRow[centreRowIndex];
|
|
belowRow = selectionRow[belowRowIndex];
|
|
|
|
readBytes(selectionRows, imageRowLeft - 1, srcY - 1, imageRowStride, NUM_SELECTION_ROWS);
|
|
}
|
|
|
|
aboveRowSrcY = srcY - 1;
|
|
centreRowSrcY = aboveRowSrcY + 1;
|
|
belowRowSrcY = centreRowSrcY + 1;
|
|
|
|
QRgb *imagePixel = reinterpret_cast<QRgb *>(img.scanLine(scaledImageRectYOffset + y));
|
|
imagePixel += scaledImageRectXOffset;
|
|
|
|
for (Q_INT32 x = 0; x < scaledImageRectWidth; ++x) {
|
|
|
|
Q_INT32 scaledX = scaledImageRectX + x;
|
|
Q_INT32 srcX = (scaledX * imageWidth) / scaledImageSize.width();
|
|
|
|
Q_UINT8 centre = *(centreRow + srcX - imageRowLeft);
|
|
|
|
if (centre != MAX_SELECTED) {
|
|
|
|
// this is where we come if the pixels should be blue or bluish
|
|
|
|
QRgb srcPixel = *imagePixel;
|
|
Q_UINT8 srcGrey = (qRed(srcPixel) + qGreen(srcPixel) + qBlue(srcPixel)) / 9;
|
|
Q_UINT8 srcAlpha = qAlpha(srcPixel);
|
|
|
|
// Colour influence is proportional to alphaPixel.
|
|
srcGrey = UINT8_MULT(srcGrey, srcAlpha);
|
|
|
|
QRgb dstPixel;
|
|
|
|
if (centre == MIN_SELECTED) {
|
|
//this is where we come if the pixels should be blue (or red outline)
|
|
|
|
Q_UINT8 left = *(centreRow + (srcX - imageRowLeft) - 1);
|
|
Q_UINT8 right = *(centreRow + (srcX - imageRowLeft) + 1);
|
|
Q_UINT8 above = *(aboveRow + (srcX - imageRowLeft));
|
|
Q_UINT8 below = *(belowRow + (srcX - imageRowLeft));
|
|
|
|
// Stop unselected transparent areas from appearing the same
|
|
// as selected transparent areas.
|
|
Q_UINT8 dstAlpha = QMAX(srcAlpha, 192);
|
|
|
|
// now for a simple outline based on 4-connectivity
|
|
if (left != MIN_SELECTED || right != MIN_SELECTED || above != MIN_SELECTED || below != MIN_SELECTED) {
|
|
dstPixel = qRgba(255, 0, 0, dstAlpha);
|
|
} else {
|
|
dstPixel = qRgba(128 + srcGrey, 128 + srcGrey, 165 + srcGrey, dstAlpha);
|
|
}
|
|
} else {
|
|
dstPixel = qRgba(UINT8_BLEND(qRed(srcPixel), srcGrey + 128, centre),
|
|
UINT8_BLEND(qGreen(srcPixel), srcGrey + 128, centre),
|
|
UINT8_BLEND(qBlue(srcPixel), srcGrey + 165, centre),
|
|
srcAlpha);
|
|
}
|
|
|
|
*imagePixel = dstPixel;
|
|
}
|
|
|
|
imagePixel++;
|
|
}
|
|
}
|
|
|
|
delete [] selectionRows;
|
|
}
|
|
}
|
|
|
|
void KisSelection::setDirty(const QRect& rc)
|
|
{
|
|
if (m_dirty)
|
|
super::setDirty(rc);
|
|
}
|
|
|
|
void KisSelection::setDirty()
|
|
{
|
|
if (m_dirty)
|
|
super::setDirty();
|
|
}
|