void KisFilterRandomPick::processImpl(KisPaintDeviceSP device,
const QRect& applyRect,
const KisFilterConfigurationSP config,
KoUpdater* progressUpdater
) const
{
Q_UNUSED(config);
Q_ASSERT(!device.isNull());
if (progressUpdater) {
progressUpdater->setRange(0, applyRect.width() * applyRect.height());
}
int count = 0;
const KoColorSpace * cs = device->colorSpace();
QVariant value;
int level = (config && config->getProperty("level", value)) ? value.toInt() : 50;
int opacity = (config && config->getProperty("opacity", value)) ? value.toInt() : 100;
double windowsize = (config && config->getProperty("windowsize", value)) ? value.toDouble() : 2.5;
int seedThreshold = rand();
int seedH = rand();
int seedV = rand();
if (config) {
seedThreshold = config->getInt("seedThreshold", seedThreshold);
seedH = config->getInt("seedH", seedH);
seedV = config->getInt("seedV", seedV);
}
KisRandomGenerator randT(seedThreshold);
KisRandomGenerator randH(seedH);
KisRandomGenerator randV(seedV);
KisSequentialIterator dstIt(device, applyRect);
KisRandomConstAccessorSP srcRA = device->createRandomConstAccessorNG(0, 0);
double threshold = (100 - level) / 100.0;
qint16 weights[2];
weights[0] = (255 * opacity) / 100; weights[1] = 255 - weights[0];
const quint8* pixels[2];
KoMixColorsOp * mixOp = cs->mixColorsOp();
do{
if (randT.doubleRandomAt(dstIt.x(), dstIt.y()) > threshold) {
int x = static_cast<int>(dstIt.x() + windowsize * (randH.doubleRandomAt(dstIt.x(), dstIt.y()) - 0.5));
int y = static_cast<int>(dstIt.y() + windowsize * (randV.doubleRandomAt(dstIt.x(), dstIt.y()) -0.5));
srcRA->moveTo(x, y);
pixels[0] = srcRA->oldRawData();
pixels[1] = dstIt.oldRawData();
mixOp->mixColors(pixels, weights, 2, dstIt.rawData());
}
if (progressUpdater) progressUpdater->setValue(++count);
} while(dstIt.nextPixel());
}
// gmic assumes float rgba in 0.0 - 255.0, thus default value
void KisGmicSimpleConvertor::convertToGmicImage(KisPaintDeviceSP dev, gmic_image<float>& gmicImage, QRect rc)
{
Q_ASSERT(!dev.isNull());
Q_ASSERT(gmicImage._spectrum == 4); // rgba
if (rc.isEmpty())
{
rc = QRect(0,0,gmicImage._width, gmicImage._height);
}
const KoColorSpace *rgbaFloat32bitcolorSpace = KoColorSpaceRegistry::instance()->colorSpace(RGBAColorModelID.id(),
Float32BitsColorDepthID.id(),
KoColorSpaceRegistry::instance()->rgb8()->profile());
Q_CHECK_PTR(rgbaFloat32bitcolorSpace);
int greenOffset = gmicImage._width * gmicImage._height;
int blueOffset = greenOffset * 2;
int alphaOffset = greenOffset * 3;
KoColorConversionTransformation::Intent renderingIntent = KoColorConversionTransformation::internalRenderingIntent();
KoColorConversionTransformation::ConversionFlags conversionFlags = KoColorConversionTransformation::internalConversionFlags();
const KoColorSpace * colorSpace = dev->colorSpace();
KisRandomConstAccessorSP it = dev->createRandomConstAccessorNG(0,0);
int optimalBufferSize = 64; // most common numContiguousColumns, tile size?
quint8 * floatRGBApixel = new quint8[rgbaFloat32bitcolorSpace->pixelSize() * optimalBufferSize];
quint32 pixelSize = rgbaFloat32bitcolorSpace->pixelSize();
int pos = 0;
for (int y = 0; y < rc.height(); y++)
{
int x = 0;
while (x < rc.width())
{
it->moveTo(x, y);
qint32 numContiguousColumns = qMin(it->numContiguousColumns(x), optimalBufferSize);
numContiguousColumns = qMin(numContiguousColumns, rc.width() - x);
colorSpace->convertPixelsTo(it->rawDataConst(), floatRGBApixel, rgbaFloat32bitcolorSpace, numContiguousColumns, renderingIntent, conversionFlags);
pos = y * gmicImage._width + x;
for (qint32 bx = 0; bx < numContiguousColumns; bx++)
{
memcpy(gmicImage._data + pos ,floatRGBApixel + bx * pixelSize , 4);
memcpy(gmicImage._data + pos + greenOffset ,floatRGBApixel + bx * pixelSize + 4, 4);
memcpy(gmicImage._data + pos + blueOffset ,floatRGBApixel + bx * pixelSize + 8, 4);
memcpy(gmicImage._data + pos + alphaOffset ,floatRGBApixel + bx * pixelSize + 12, 4);
pos++;
}
x += numContiguousColumns;
}
}
delete [] floatRGBApixel;
}
void KisGmicSimpleConvertor::convertToGmicImageFast(KisPaintDeviceSP dev, CImg< float >& gmicImage, QRect rc)
{
KoColorTransformation * pixelToGmicPixelFormat = createTransformation(dev->colorSpace());
if (pixelToGmicPixelFormat == 0)
{
dbgPlugins << "Fall-back to slow color conversion method";
convertToGmicImage(dev, gmicImage, rc);
return;
}
if (rc.isEmpty())
{
dbgPlugins << "Image rectangle is empty! Using supplied gmic layer dimension";
rc = QRect(0,0,gmicImage._width, gmicImage._height);
}
qint32 x = rc.x();
qint32 y = rc.y();
qint32 width = rc.width();
qint32 height = rc.height();
width = width < 0 ? 0 : width;
height = height < 0 ? 0 : height;
const qint32 numChannels = 4;
int greenOffset = gmicImage._width * gmicImage._height;
int blueOffset = greenOffset * 2;
int alphaOffset = greenOffset * 3;
QVector<float *> planes;
planes.append(gmicImage._data);
planes.append(gmicImage._data + greenOffset);
planes.append(gmicImage._data + blueOffset);
planes.append(gmicImage._data + alphaOffset);
KisRandomConstAccessorSP it = dev->createRandomConstAccessorNG(dev->x(), dev->y());
int tileWidth = it->numContiguousColumns(dev->x());
int tileHeight = it->numContiguousRows(dev->y());
Q_ASSERT(tileWidth == 64);
Q_ASSERT(tileHeight == 64);
const KoColorSpace *rgbaFloat32bitcolorSpace = KoColorSpaceRegistry::instance()->colorSpace(RGBAColorModelID.id(),
Float32BitsColorDepthID.id(),
KoColorSpaceRegistry::instance()->rgb8()->profile());
Q_CHECK_PTR(rgbaFloat32bitcolorSpace);
const qint32 dstPixelSize = rgbaFloat32bitcolorSpace->pixelSize();
const qint32 srcPixelSize = dev->pixelSize();
quint8 * dstTile = new quint8[rgbaFloat32bitcolorSpace->pixelSize() * tileWidth * tileHeight];
qint32 dataY = 0;
qint32 imageX = x;
qint32 imageY = y;
it->moveTo(imageX, imageY);
qint32 rowsRemaining = height;
while (rowsRemaining > 0) {
qint32 dataX = 0;
imageX = x;
qint32 columnsRemaining = width;
qint32 numContiguousImageRows = it->numContiguousRows(imageY);
qint32 rowsToWork = qMin(numContiguousImageRows, rowsRemaining);
qint32 convertedTileY = tileHeight - rowsToWork;
Q_ASSERT(convertedTileY >= 0);
while (columnsRemaining > 0) {
qint32 numContiguousImageColumns = it->numContiguousColumns(imageX);
qint32 columnsToWork = qMin(numContiguousImageColumns, columnsRemaining);
qint32 convertedTileX = tileWidth - columnsToWork;
Q_ASSERT(convertedTileX >= 0);
const qint32 dataIdx = dataX + dataY * width;
const qint32 dstTileIndex = convertedTileX + convertedTileY * tileWidth;
const qint32 tileRowStride = (tileWidth - columnsToWork) * dstPixelSize;
const qint32 srcTileRowStride = (tileWidth - columnsToWork) * srcPixelSize;
it->moveTo(imageX, imageY);
quint8 *tileItStart = dstTile + dstTileIndex * dstPixelSize;
// transform tile row by row
quint8 *dstTileIt = tileItStart;
quint8 *srcTileIt = const_cast<quint8*>(it->rawDataConst());
qint32 row = rowsToWork;
while (row > 0)
{
pixelToGmicPixelFormat->transform(srcTileIt, dstTileIt , columnsToWork);
srcTileIt += columnsToWork * srcPixelSize;
srcTileIt += srcTileRowStride;
dstTileIt += columnsToWork * dstPixelSize;
dstTileIt += tileRowStride;
row--;
}
// here we want to copy floats to dstTile, so tileItStart has to point to float buffer
qint32 channelSize = sizeof(float);
for(qint32 i=0; i<numChannels;i++)
{
float * planeIt = planes[i] + dataIdx;
qint32 dataStride = (width - columnsToWork);
quint8* tileIt = tileItStart;
for (qint32 row = 0; row < rowsToWork; row++) {
for (int col = 0; col < columnsToWork; col++) {
memcpy(planeIt, tileIt, channelSize);
tileIt += dstPixelSize;
planeIt += 1;
}
tileIt += tileRowStride;
planeIt += dataStride;
}
// skip channel in tile: red, green, blue, alpha
tileItStart += channelSize;
}
imageX += columnsToWork;
dataX += columnsToWork;
columnsRemaining -= columnsToWork;
}
imageY += rowsToWork;
dataY += rowsToWork;
rowsRemaining -= rowsToWork;
}
delete [] dstTile;
delete pixelToGmicPixelFormat;
}
SourceAccessorType createSourceDeviceAccessor(KisPaintDeviceSP device) {
return device->createRandomConstAccessorNG(0, 0);
}
void KisRainDropsFilter::process(KisConstProcessingInformation srcInfo,
KisProcessingInformation dstInfo,
const QSize& size,
const KisFilterConfiguration* config,
KoUpdater* progressUpdater
) const
{
const KisPaintDeviceSP src = srcInfo.paintDevice();
KisPaintDeviceSP dst = dstInfo.paintDevice();
QPoint dstTopLeft = dstInfo.topLeft();
QPoint srcTopLeft = srcInfo.topLeft();
Q_UNUSED(config);
Q_ASSERT(!src.isNull());
Q_ASSERT(!dst.isNull());
//read the filter configuration values from the KisFilterConfiguration object
quint32 DropSize = config->getInt("dropSize", 80);
quint32 number = config->getInt("number", 80);
quint32 fishEyes = config->getInt("fishEyes", 30);
if (progressUpdater) {
progressUpdater->setRange(0, size.width() * size.height());
}
int count = 0;
if (fishEyes <= 0) fishEyes = 1;
if (fishEyes > 100) fishEyes = 100;
int Width = size.width();
int Height = size.height();
bool** BoolMatrix = CreateBoolArray(Width, Height);
int i, j, k, l, m, n; // loop variables
int Bright; // Bright value for shadows and highlights
int x, y; // center coordinates
int Counter = 0; // Counter (duh !)
int NewSize; // Size of current raindrop
int halfSize; // Half of the current raindrop
int Radius; // Maximum radius for raindrop
int BlurRadius; // Blur Radius
int BlurPixels;
double r, a; // polar coordinates
double OldRadius; // Radius before processing
double NewfishEyes = (double)fishEyes * 0.01; // FishEye fishEyesicients
double s;
double R, G, B;
bool FindAnother = false; // To search for good coordinates
const KoColorSpace * cs = src->colorSpace();
// XXX: move the seed to the config, so the filter can be used as
// and adjustment filter (boud).
// And use a thread-safe random number generator
QDateTime dt = QDateTime::currentDateTime();
QDateTime Y2000(QDate(2000, 1, 1), QTime(0, 0, 0));
srand((uint) dt.secsTo(Y2000));
// Init booleen Matrix.
for (i = 0 ; (i < Width) && !(progressUpdater && progressUpdater->interrupted()) ; ++i) {
for (j = 0 ; (j < Height) && !(progressUpdater && progressUpdater->interrupted()); ++j) {
BoolMatrix[i][j] = false;
}
}
KisRandomAccessorSP dstAccessor = dst->createRandomAccessorNG(dstTopLeft.x(), dstTopLeft.y());
KisRandomConstAccessorSP srcAccessor = src->createRandomConstAccessorNG(dstTopLeft.x(), dstTopLeft.y());
for (uint NumBlurs = 0; (NumBlurs <= number) && !(progressUpdater && progressUpdater->interrupted()); ++NumBlurs) {
NewSize = (int)(rand() * ((double)(DropSize - 5) / RAND_MAX) + 5);
halfSize = NewSize / 2;
Radius = halfSize;
s = Radius / log(NewfishEyes * Radius + 1);
Counter = 0;
do {
FindAnother = false;
y = (int)(rand() * ((double)(Width - 1) / RAND_MAX));
x = (int)(rand() * ((double)(Height - 1) / RAND_MAX));
if (BoolMatrix[y][x])
FindAnother = true;
else
for (i = x - halfSize ; (i <= x + halfSize) && !(progressUpdater && progressUpdater->interrupted()); i++)
for (j = y - halfSize ; (j <= y + halfSize) && !(progressUpdater && progressUpdater->interrupted()); j++)
if ((i >= 0) && (i < Height) && (j >= 0) && (j < Width))
if (BoolMatrix[j][i])
FindAnother = true;
Counter++;
} while ((FindAnother && (Counter < 10000) && !(progressUpdater && progressUpdater->interrupted())));
if (Counter >= 10000) {
NumBlurs = number;
break;
}
for (i = -1 * halfSize ; (i < NewSize - halfSize) && !(progressUpdater && progressUpdater->interrupted()); i++) {
for (j = -1 * halfSize ; (j < NewSize - halfSize) && !(progressUpdater && progressUpdater->interrupted()); j++) {
r = sqrt(i * i + j * j);
a = atan2(static_cast<double>(i), static_cast<double>(j));
if (r <= Radius) {
OldRadius = r;
r = (exp(r / s) - 1) / NewfishEyes;
k = x + (int)(r * sin(a));
l = y + (int)(r * cos(a));
m = x + i;
n = y + j;
if ((k >= 0) && (k < Height) && (l >= 0) && (l < Width)) {
if ((m >= 0) && (m < Height) && (n >= 0) && (n < Width)) {
Bright = 0;
if (OldRadius >= 0.9 * Radius) {
if ((a <= 0) && (a > -2.25))
Bright = -80;
else if ((a <= -2.25) && (a > -2.5))
Bright = -40;
else if ((a <= 0.25) && (a > 0))
Bright = -40;
}
else if (OldRadius >= 0.8 * Radius) {
if ((a <= -0.75) && (a > -1.50))
Bright = -40;
else if ((a <= 0.10) && (a > -0.75))
Bright = -30;
else if ((a <= -1.50) && (a > -2.35))
Bright = -30;
}
else if (OldRadius >= 0.7 * Radius) {
if ((a <= -0.10) && (a > -2.0))
Bright = -20;
else if ((a <= 2.50) && (a > 1.90))
Bright = 60;
}
else if (OldRadius >= 0.6 * Radius) {
if ((a <= -0.50) && (a > -1.75))
Bright = -20;
else if ((a <= 0) && (a > -0.25))
Bright = 20;
else if ((a <= -2.0) && (a > -2.25))
Bright = 20;
}
else if (OldRadius >= 0.5 * Radius) {
if ((a <= -0.25) && (a > -0.50))
Bright = 30;
else if ((a <= -1.75) && (a > -2.0))
Bright = 30;
}
else if (OldRadius >= 0.4 * Radius) {
if ((a <= -0.5) && (a > -1.75))
Bright = 40;
}
else if (OldRadius >= 0.3 * Radius) {
if ((a <= 0) && (a > -2.25))
Bright = 30;
}
else if (OldRadius >= 0.2 * Radius) {
if ((a <= -0.5) && (a > -1.75))
Bright = 20;
}
BoolMatrix[n][m] = true;
QColor originalColor;
srcAccessor->moveTo(srcTopLeft.x() + l, srcTopLeft.y() + k);
cs->toQColor(srcAccessor->oldRawData(), &originalColor);
int newRed = CLAMP(originalColor.red() + Bright, 0, quint8_MAX);
int newGreen = CLAMP(originalColor.green() + Bright, 0, quint8_MAX);
int newBlue = CLAMP(originalColor.blue() + Bright, 0, quint8_MAX);
QColor newColor;
newColor.setRgb(newRed, newGreen, newBlue);
dstAccessor->moveTo(dstTopLeft.x() + n, dstTopLeft.y() + m);
cs->fromQColor(newColor, dstAccessor->rawData());
}
}
}
}
}
BlurRadius = NewSize / 25 + 1;
for (i = -1 * halfSize - BlurRadius ; (i < NewSize - halfSize + BlurRadius) && !(progressUpdater && progressUpdater->interrupted()) ; i++) {
for (j = -1 * halfSize - BlurRadius;
((j < NewSize - halfSize + BlurRadius) && !(progressUpdater && progressUpdater->interrupted()));
++j) {
r = sqrt(i * i + j * j);
if (r <= Radius * 1.1) {
R = G = B = 0;
BlurPixels = 0;
for (k = -1 * BlurRadius; k < BlurRadius + 1; k++)
for (l = -1 * BlurRadius; l < BlurRadius + 1; l++) {
m = x + i + k;
n = y + j + l;
if ((m >= 0) && (m < Height) && (n >= 0) && (n < Width)) {
QColor color;
dstAccessor->moveTo(dstTopLeft.x() + n, dstTopLeft.y() + m);
cs->toQColor(dstAccessor->rawData(), &color);
R += color.red();
G += color.green();
B += color.blue();
BlurPixels++;
}
}
m = x + i;
n = y + j;
if ((m >= 0) && (m < Height) && (n >= 0) && (n < Width)) {
QColor color;
color.setRgb((int)(R / BlurPixels), (int)(G / BlurPixels), (int)(B / BlurPixels));
dstAccessor->moveTo(dstTopLeft.x() + n, dstTopLeft.y() + m);
cs->fromQColor(color, dstAccessor->rawData());
}
}
}
}
if (progressUpdater) progressUpdater->setValue(++count);
}
FreeBoolArray(BoolMatrix, Width);
}
KisImportExportFilter::ConversionStatus KisHeightMapExport::convert(const QByteArray& from, const QByteArray& to)
{
dbgFile << "HeightMap export! From:" << from << ", To:" << to;
if (from != "application/x-krita")
return KisImportExportFilter::NotImplemented;
KisDocument *inputDoc = inputDocument();
QString filename = outputFile();
if (!inputDoc)
return KisImportExportFilter::NoDocumentCreated;
if (filename.isEmpty()) return KisImportExportFilter::FileNotFound;
KisImageWSP image = inputDoc->image();
Q_CHECK_PTR(image);
if (inputDoc->image()->width() != inputDoc->image()->height()) {
inputDoc->setErrorMessage(i18n("Cannot export this image to a heightmap: it is not square"));
return KisImportExportFilter::WrongFormat;
}
if (inputDoc->image()->colorSpace()->colorModelId() != GrayAColorModelID) {
inputDoc->setErrorMessage(i18n("Cannot export this image to a heightmap: it is not grayscale"));
return KisImportExportFilter::WrongFormat;
}
KoDialog* kdb = new KoDialog(0);
kdb->setWindowTitle(i18n("HeightMap Export Options"));
kdb->setButtons(KoDialog::Ok | KoDialog::Cancel);
Ui::WdgOptionsHeightMap optionsHeightMap;
QWidget* wdg = new QWidget(kdb);
optionsHeightMap.setupUi(wdg);
kdb->setMainWidget(wdg);
QApplication::restoreOverrideCursor();
QString filterConfig = KisConfig().exportConfiguration("HeightMap");
KisPropertiesConfiguration cfg;
cfg.fromXML(filterConfig);
optionsHeightMap.intSize->setValue(image->width());
int endianness = cfg.getInt("endianness", 0);
QDataStream::ByteOrder bo = QDataStream::LittleEndian;
optionsHeightMap.radioPC->setChecked(true);
if (endianness == 0) {
bo = QDataStream::BigEndian;
optionsHeightMap.radioMac->setChecked(true);
}
if (!getBatchMode()) {
if (kdb->exec() == QDialog::Rejected) {
return KisImportExportFilter::UserCancelled;
}
}
if (optionsHeightMap.radioMac->isChecked()) {
cfg.setProperty("endianness", 0);
bo = QDataStream::BigEndian;
}
else {
cfg.setProperty("endianness", 1);
bo = QDataStream::LittleEndian;
}
KisConfig().setExportConfiguration("HeightMap", cfg);
bool downscale = false;
if (to == "image/x-r8" && image->colorSpace()->colorDepthId() == Integer16BitsColorDepthID) {
downscale = (QMessageBox::question(0,
i18nc("@title:window", "Downscale Image"),
i18n("You specified the .r8 extension for a 16 bit/channel image. Do you want to save as 8 bit? Your image data will not be changed."),
QMessageBox::Yes | QMessageBox::No)
== QMessageBox::Yes);
}
// the image must be locked at the higher levels
KIS_SAFE_ASSERT_RECOVER_NOOP(image->locked());
KisPaintDeviceSP pd = new KisPaintDevice(*image->projection());
QFile f(filename);
f.open(QIODevice::WriteOnly);
QDataStream s(&f);
s.setByteOrder(bo);
KisRandomConstAccessorSP it = pd->createRandomConstAccessorNG(0, 0);
bool r16 = ((image->colorSpace()->colorDepthId() == Integer16BitsColorDepthID) && !downscale);
for (int i = 0; i < image->height(); ++i) {
for (int j = 0; j < image->width(); ++j) {
it->moveTo(i, j);
if (r16) {
s << KoGrayU16Traits::gray(const_cast<quint8*>(it->rawDataConst()));
}
else {
s << KoGrayU8Traits::gray(const_cast<quint8*>(it->rawDataConst()));
}
}
}
f.close();
return KisImportExportFilter::OK;
}
void KisSmudgeRadiusOption::apply(KisPainter& painter, const KisPaintInformation& info, qreal scale, qreal posx, qreal posy,KisPaintDeviceSP dev) const
{
double sliderValue = computeValue(info);
int smudgeRadius = ((sliderValue * scale)*0.5)/100.0;//scale is diameter?
KoColor color = painter.paintColor();
if (smudgeRadius == 1) {
dev->pixel(posx, posy, &color);
painter.setPaintColor(color);
} else {
const KoColorSpace* cs = dev->colorSpace();
int pixelSize = cs->pixelSize();
quint8* data = new quint8[pixelSize];
static quint8** pixels = new quint8*[2];
qint16* weights = new qint16[2];
pixels[1] = new quint8[pixelSize];
pixels[0] = new quint8[pixelSize];
int loop_increment = 1;
if(smudgeRadius >= 8)
{
loop_increment = (2*smudgeRadius)/16;
}
int i = 0;
int k = 0;
int j = 0;
KisRandomConstAccessorSP accessor = dev->createRandomConstAccessorNG(0, 0);
KisCrossDeviceColorPickerInt colorPicker(painter.device(), color);
colorPicker.pickColor(posx, posy, color.data());
for (int y = 0; y <= smudgeRadius; y = y + loop_increment) {
for (int x = 0; x <= smudgeRadius; x = x + loop_increment) {
for(j = 0;j < 2;j++)
{
if(j == 1)
{
y = y*(-1);
}
for(k = 0;k < 2;k++)
{
if(k == 1)
{
x = x*(-1);
}
accessor->moveTo(posx + x, posy + y);
memcpy(pixels[1], accessor->rawDataConst(), pixelSize);
if(i == 0)
{
memcpy(pixels[0],accessor->rawDataConst(),pixelSize);
}
if (x == 0 && y == 0) {
// Because the sum of the weights must be 255,
// we cheat a bit, and weigh the center pixel differently in order
// to sum to 255 in total
// It's -(counts -1), because we'll add the center one implicitly
// through that calculation
weights[1] = (255 - ((i + 1) * (255 /(i+2) )) );
} else {
weights[1] = 255 /(i+2);
}
i++;
if (i>smudgeRadius){i=0;}
weights[0] = 255 - weights[1];
const quint8** cpixels = const_cast<const quint8**>(pixels);
cs->mixColorsOp()->mixColors(cpixels, weights,2, data);
memcpy(pixels[0],data,pixelSize);
}
x = x*(-1);
}
y = y*(-1);
}
}
KoColor color = KoColor(pixels[0],cs);
painter.setPaintColor(color);
for (int l = 0; l < 2; l++){
delete[] pixels[l];
}
// delete[] pixels;
delete[] data;
}
}
KisRandomSubAccessor::KisRandomSubAccessor(KisPaintDeviceSP device)
: m_device(device)
, m_currentPoint(0, 0)
, m_randomAccessor(device->createRandomConstAccessorNG(0, 0))
{
}