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/*
* Copyright (c) 2004 Boudewijn Rempt <boud@valdyas.org>
* Copyright (c) 2005 Bart Coppens <kde@bartcoppens.be>
*
* 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 "kis_imagepipe_brush.h"
#include "kis_imagepipe_brush_p.h"
#include "kis_brushes_pipe.h"
class KisImageBrushesPipe : public KisBrushesPipe<KisGbrBrush>
{
/*
pre and post are split because:
21:12:20 < dmitryK> boud: i guess it was somehow related to the fact that the maskWidth/maskHeight should
correspond to the size of the mask returned by paintDevice()
21:13:33 < dmitryK> boud: the random stuff is called once per brush->paintDevice() call, after the device is
returned to the paint op, that is "preparing the randomness for the next call"
21:14:16 < dmitryK> boud: and brushesPipe->currentBrush() always returning the same brush for any particular
paintInfo.
*/
protected:
static int selectPre(KisParasite::SelectionMode mode,
int index, int rank,
const KisPaintInformation& info) {
qreal angle;
switch (mode) {
case KisParasite::Constant:
case KisParasite::Incremental:
case KisParasite::Random:
break;
case KisParasite::Pressure:
index = static_cast<int>(info.pressure() * (rank - 1) + 0.5);
break;
case KisParasite::Angular:
// + m_d->PI_2 to be compatible with the gimp
angle = info.drawingAngle() + M_PI_2;
angle = normalizeAngle(angle);
index = static_cast<int>(angle / (2.0 * M_PI) * rank);
break;
case KisParasite::TiltX:
index = qRound(info.xTilt() / 2.0 * rank) + rank / 2;
break;
case KisParasite::TiltY:
index = qRound(info.yTilt() / 2.0 * rank) + rank / 2;
break;
default:
warnImage << "Parasite" << mode << "is not implemented";
index = 0;
}
return index;
}
static int selectPost(KisParasite::SelectionMode mode,
int index, int rank) {
switch (mode) {
case KisParasite::Constant: break;
case KisParasite::Incremental:
index = (index + 1) % rank;
break;
case KisParasite::Random:
index = int(float(rank) * KRandom::random() / RAND_MAX);
break;
case KisParasite::Pressure:
case KisParasite::Angular:
break;
case KisParasite::TiltX:
case KisParasite::TiltY:
break;
default:
warnImage << "Parasite" << mode << "is not implemented";
index = 0;
}
return index;
}
int chooseNextBrush(const KisPaintInformation& info) const {
quint32 brushIndex = 0;
for (int i = 0; i < m_parasite.dim; i++) {
int index = selectPre(m_parasite.selection[i],
m_parasite.index[i],
m_parasite.rank[i], info);
brushIndex += m_parasite.brushesCount[i] * index;
}
brushIndex %= m_brushes.size();
return brushIndex;
}
void updateBrushIndexes() {
for (int i = 0; i < m_parasite.dim; i++) {
m_parasite.index[i] = selectPost(m_parasite.selection[i],
m_parasite.index[i],
m_parasite.rank[i]);
}
}
public:
using KisBrushesPipe<KisGbrBrush>::addBrush;
void setParasite(const KisPipeBrushParasite& parasite) {
m_parasite = parasite;
}
const KisPipeBrushParasite& parasite() const {
return m_parasite;
}
void setUseColorAsMask(bool useColorAsMask) {
foreach(KisGbrBrush * brush, m_brushes) {
brush->setUseColorAsMask(useColorAsMask);
}
}
void makeMaskImage() {
foreach(KisGbrBrush * brush, m_brushes) {
brush->makeMaskImage();
}
}
bool saveToDevice(QIODevice* dev) const {
foreach(KisGbrBrush * brush, m_brushes) {
if (!brush->saveToDevice(dev)) {
return false;
}
}
return true;
}
private:
KisPipeBrushParasite m_parasite;
};
struct KisImagePipeBrush::Private {
public:
KisImageBrushesPipe brushesPipe;
};
KisImagePipeBrush::KisImagePipeBrush(const QString& filename)
: KisGbrBrush(filename)
, m_d(new Private())
{
}
KisImagePipeBrush::KisImagePipeBrush(const QString& name, int w, int h,
QVector< QVector<KisPaintDevice*> > devices,
QVector<KisParasite::SelectionMode > modes)
: KisGbrBrush("")
, m_d(new Private())
{
Q_ASSERT(devices.count() == modes.count());
Q_ASSERT(devices.count() > 0);
Q_ASSERT(devices.count() < 2); // XXX Multidimensionals not supported yet, change to MaxDim!
setName(name);
KisPipeBrushParasite parasite;
parasite.dim = devices.count();
// XXX Change for multidim! :
parasite.ncells = devices.at(0).count();
parasite.rank[0] = parasite.ncells; // ### This can masquerade some bugs, be careful here in the future
parasite.selection[0] = modes.at(0);
// XXX needsmovement!
parasite.setBrushesCount();
m_d->brushesPipe.setParasite(parasite);
for (int i = 0; i < devices.at(0).count(); i++) {
m_d->brushesPipe.addBrush(new KisGbrBrush(devices.at(0).at(i), 0, 0, w, h));
}
setImage(m_d->brushesPipe.firstBrush()->image());
}
KisImagePipeBrush::KisImagePipeBrush(const KisImagePipeBrush& rhs)
: KisGbrBrush(rhs),
m_d(new Private)
{
*m_d = *(rhs.m_d);
}
KisImagePipeBrush::~KisImagePipeBrush()
{
delete m_d;
}
bool KisImagePipeBrush::load()
{
QFile file(filename());
file.open(QIODevice::ReadOnly);
QByteArray data = file.readAll();
file.close();
return initFromData(data);
}
bool KisImagePipeBrush::initFromData(const QByteArray &data)
{
if (data.size() == 0) return false;
// XXX: this doesn't correctly load the image pipe brushes yet.
// XXX: This stuff is in utf-8, too.
// The first line contains the name -- this means we look until we arrive at the first newline
QByteArray line1;
qint32 i = 0;
while (data[i] != '\n' && i < data.size()) {
line1.append(data[i]);
i++;
}
setName(QString::fromUtf8(line1, line1.size()));
i++; // Skip past the first newline
// The second line contains the number of brushes, separated by a space from the parasite
// XXX: This stuff is in utf-8, too.
QByteArray line2;
while (data[i] != '\n' && i < data.size()) {
line2.append(data[i]);
i++;
}
QString paramline = QString::fromUtf8(line2, line2.size());
qint32 numOfBrushes = paramline.left(paramline.indexOf(' ')).toUInt();
QString parasiteString = paramline.mid(paramline.indexOf(' ') + 1);
KisPipeBrushParasite parasite = KisPipeBrushParasite(parasiteString);
parasite.sanitize();
m_d->brushesPipe.setParasite(parasite);
i++; // Skip past the second newline
for (int brushIndex = 0;
brushIndex < numOfBrushes && i < data.size(); brushIndex++) {
KisGbrBrush* brush = new KisGbrBrush(name() + '_' + QString().setNum(brushIndex),
data,
i);
m_d->brushesPipe.addBrush(brush);
}
if (numOfBrushes > 0) {
setValid(true);
setSpacing(m_d->brushesPipe.lastBrush()->spacing());
setWidth(m_d->brushesPipe.firstBrush()->width());
setHeight(m_d->brushesPipe.firstBrush()->height());
setImage(m_d->brushesPipe.firstBrush()->image());
}
return true;
}
bool KisImagePipeBrush::save()
{
QFile file(filename());
file.open(QIODevice::WriteOnly | QIODevice::Truncate);
bool ok = saveToDevice(&file);
file.close();
return ok;
}
bool KisImagePipeBrush::saveToDevice(QIODevice* dev) const
{
QByteArray utf8Name = name().toUtf8(); // Names in v2 brushes are in UTF-8
char const* name = utf8Name.data();
int len = qstrlen(name);
if (m_d->brushesPipe.parasite().dim != 1) {
warnImage << "Save to file for pipe brushes with dim != not yet supported!";
return false;
}
// Save this pipe brush: first the header, and then all individual brushes consecutively
// XXX: this needs some care for when we have > 1 dimension)
// Gimp Pipe Brush header format: Name\n<number of brushes> <parasite>\n
// The name\n
if (dev->write(name, len) == -1)
return false;
if (!dev->putChar('\n'))
return false;
// Write the parasite (also writes number of brushes)
if (!m_d->brushesPipe.parasite().saveToDevice(dev))
return false;
if (!dev->putChar('\n'))
return false;
// <gbr brushes>
return m_d->brushesPipe.saveToDevice(dev);
}
void KisImagePipeBrush::notifyCachedDabPainted()
{
m_d->brushesPipe.notifyCachedDabPainted();
}
void KisImagePipeBrush::generateMaskAndApplyMaskOrCreateDab(KisFixedPaintDeviceSP dst, KisBrush::ColoringInformation* coloringInformation,
double scaleX, double scaleY, double angle, const KisPaintInformation& info,
double subPixelX , double subPixelY,
qreal softnessFactor) const
{
m_d->brushesPipe.generateMaskAndApplyMaskOrCreateDab(dst, coloringInformation, scaleX, scaleY, angle, info, subPixelX, subPixelY, softnessFactor);
}
KisFixedPaintDeviceSP KisImagePipeBrush::paintDevice(const KoColorSpace * colorSpace, double scale, double angle, const KisPaintInformation& info, double subPixelX, double subPixelY) const
{
return m_d->brushesPipe.paintDevice(colorSpace, scale, angle, info, subPixelX, subPixelY);
}
enumBrushType KisImagePipeBrush::brushType() const
{
return !hasColor() || useColorAsMask() ? PIPE_MASK : PIPE_IMAGE;
}
bool KisImagePipeBrush::hasColor() const
{
return m_d->brushesPipe.hasColor();
}
void KisImagePipeBrush::makeMaskImage()
{
m_d->brushesPipe.makeMaskImage();
setUseColorAsMask(false);
}
void KisImagePipeBrush::setUseColorAsMask(bool useColorAsMask)
{
KisGbrBrush::setUseColorAsMask(useColorAsMask);
m_d->brushesPipe.setUseColorAsMask(useColorAsMask);
}
const KisBoundary* KisImagePipeBrush::boundary() const
{
KisGbrBrush *brush = m_d->brushesPipe.firstBrush();
Q_ASSERT(brush);
return brush->boundary();
}
bool KisImagePipeBrush::canPaintFor(const KisPaintInformation& info)
{
return !m_d->brushesPipe.parasite().needsMovement ||
info.drawingDistance() >= 0.5;
}
KisImagePipeBrush* KisImagePipeBrush::clone() const
{
return new KisImagePipeBrush(*this);
}
QString KisImagePipeBrush::defaultFileExtension() const
{
return QString(".gih");
}
quint32 KisImagePipeBrush::brushIndex(const KisPaintInformation& info) const
{
return m_d->brushesPipe.brushIndex(info);
}
qint32 KisImagePipeBrush::maskWidth(double scale, double angle, double subPixelX, double subPixelY, const KisPaintInformation& info) const
{
return m_d->brushesPipe.maskWidth(scale, angle, subPixelX, subPixelY, info);
}
qint32 KisImagePipeBrush::maskHeight(double scale, double angle, double subPixelX, double subPixelY, const KisPaintInformation& info) const
{
return m_d->brushesPipe.maskHeight(scale, angle, subPixelX, subPixelY, info);
}
void KisImagePipeBrush::setAngle(qreal _angle)
{
KisGbrBrush::setAngle(_angle);
m_d->brushesPipe.setAngle(_angle);
}
void KisImagePipeBrush::setScale(qreal _scale)
{
KisGbrBrush::setScale(_scale);
m_d->brushesPipe.setScale(_scale);
}
void KisImagePipeBrush::setSpacing(double _spacing)
{
KisGbrBrush::setSpacing(_spacing);
m_d->brushesPipe.setSpacing(_spacing);
}
void KisImagePipeBrush::setBrushType(enumBrushType type)
{
Q_UNUSED(type);
qFatal("FATAL: protected member setBrushType has no meaning for KisImagePipeBrush");
// brushType() is a finction of hasColor() and useColorAsMask()
}
void KisImagePipeBrush::setHasColor(bool hasColor)
{
Q_UNUSED(hasColor);
qFatal("FATAL: protected member setHasColor has no meaning for KisImagePipeBrush");
// hasColor() is a function of the underlying brushes
}
KisGbrBrush* KisImagePipeBrush::testingGetCurrentBrush(const KisPaintInformation& info) const
{
return m_d->brushesPipe.currentBrush(info);
}
QVector<KisGbrBrush*> KisImagePipeBrush::testingGetBrushes() const
{
return m_d->brushesPipe.testingGetBrushes();
}
void KisImagePipeBrush::testingSelectNextBrush(const KisPaintInformation& info) const
{
return m_d->brushesPipe.testingSelectNextBrush(info);
}
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