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koffice/chalk/core/kis_imagepipe_brush.cpp

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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.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include <math.h>
#include <netinet/in.h>
#include <limits.h>
#include <stdlib.h>
#include <tqimage.h>
#include <tqpoint.h>
#include <tqvaluevector.h>
#include <tqfile.h>
#include <tqregexp.h>
#include <tqstringlist.h>
#include <tqtextstream.h>
#include <kdebug.h>
#include <tdelocale.h>
#include <tdeapplication.h>
#include "kis_global.h"
#include "kis_paint_device.h"
#include "kis_imagepipe_brush.h"
#include "kis_brush.h"
#include "kis_alpha_mask.h"
#include "kis_layer.h"
#include "kis_meta_registry.h"
#include "kis_colorspace_factory_registry.h"
KisPipeBrushParasite::KisPipeBrushParasite(const TQString& source)
{
needsMovement = false;
TQRegExp basicSplitter(" ", true);
TQRegExp parasiteSplitter(":", true);
TQStringList parasites = TQStringList::split(basicSplitter, source);
for (uint i = 0; i < parasites.count(); i++) {
TQStringList splitted = TQStringList::split(parasiteSplitter, *parasites.at(i));
if (splitted.count() != 2) {
kdWarning(41001) << "Wrong count for this parasite key/value:" << *parasites.at(i) << endl;
continue;
}
TQString index = *splitted.at(0);
if (index == "dim") {
dim = (*splitted.at(1)).toInt();
if (dim < 1 || dim > MaxDim) {
dim = 1;
}
} else if (index.startsWith("sel")) {
int selIndex = index.mid(strlen("sel")).toInt();
if (selIndex >= 0 && selIndex < dim) {
TQString selectionMode = *splitted.at(1);
if (selectionMode == "incremental")
selection[selIndex] = Incremental;
else if (selectionMode == "angular") {
selection[selIndex] = Angular;
needsMovement = true;
} else if (selectionMode == "random")
selection[selIndex] = Random;
else if (selectionMode == "pressure")
selection[selIndex] = Pressure;
else if (selectionMode == "xtilt")
selection[selIndex] = TiltX;
else if (selectionMode == "ytilt")
selection[selIndex] = TiltY;
else
selection[selIndex] = Constant;
} else {
kdWarning(41001)<< "Sel: wrong index: " << selIndex << "(dim = " << dim << ")" << endl;
}
} else if (index.startsWith("rank")) {
int rankIndex = index.mid(strlen("rank")).toInt();
if (rankIndex < 0 || rankIndex > dim) {
kdWarning(41001) << "Rankindex out of range: " << rankIndex << endl;
continue;
}
rank[rankIndex] = (*splitted.at(1)).toInt();
} else if (index == "ncells") {
ncells = (*splitted.at(1)).toInt();
if (ncells < 1 ) {
kdWarning(41001) << "ncells out of range: " << ncells << endl;
ncells = 1;
}
}
}
for (int i = 0; i < dim; i++) {
index[i] = 0;
}
setBrushesCount();
}
void KisPipeBrushParasite::setBrushesCount() {
// I assume ncells is correct. If it isn't, complain to the parasite header.
brushesCount[0] = ncells / rank[0];
for (int i = 1; i < dim; i++) {
brushesCount[i] = brushesCount[i-1] / rank[i];
}
}
bool KisPipeBrushParasite::saveToDevice(TQIODevice* dev) const {
// write out something like
// <count> ncells:<count> dim:<dim> rank0:<rank0> sel0:<sel0> <...>
TQTextStream stream(dev);
/// FIXME things like step, placement and so are not added (nor loaded, as a matter of fact)
stream << ncells << " ncells:" << ncells << " dim:" << dim;
for (int i = 0; i < dim; i++) {
stream << " rank" << i << ":" << rank[i] << " sel" << i << ":";
switch (selection[i]) {
case Constant: stream << "constant"; break;
case Incremental: stream << "incremental"; break;
case Angular: stream << "angular"; break;
case Velocity: stream << "velocity"; break;
case Random: stream << "random"; break;
case Pressure: stream << "pressure"; break;
case TiltX: stream << "xtilt"; break;
case TiltY: stream << "ytilt"; break;
}
}
return true;
}
KisImagePipeBrush::KisImagePipeBrush(const TQString& filename) : super(filename)
{
m_brushType = INVALID;
m_numOfBrushes = 0;
m_currentBrush = 0;
}
KisImagePipeBrush::KisImagePipeBrush(const TQString& name, int w, int h,
TQValueVector< TQValueVector<KisPaintDevice*> > devices,
TQValueVector<KisPipeBrushParasite::SelectionMode> modes)
: super("")
{
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);
m_parasite.dim = devices.count();
// XXX Change for multidim! :
m_parasite.ncells = devices.at(0).count();
m_parasite.rank[0] = m_parasite.ncells;
m_parasite.selection[0] = modes.at(0);
// XXX needsmovement!
m_parasite.setBrushesCount();
for (uint i = 0; i < devices.at(0).count(); i++) {
m_brushes.append(new KisBrush(devices.at(0).at(i), 0, 0, w, h));
}
setImage(m_brushes.at(0)->img());
m_brushType = PIPE_IMAGE;
}
KisImagePipeBrush::~KisImagePipeBrush()
{
m_brushes.setAutoDelete(true);
m_brushes.clear();
}
bool KisImagePipeBrush::load()
{
TQFile file(filename());
file.open(IO_ReadOnly);
m_data = file.readAll();
file.close();
return init();
}
bool KisImagePipeBrush::init()
{
// 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
TQValueVector<char> line1;
TQ_UINT32 i = 0;
while (m_data[i] != '\n' && i < m_data.size()) {
line1.append(m_data[i]);
i++;
}
setName(i18n(TQString::fromUtf8(&line1[0], i).ascii()));
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.
TQValueVector<char> line2;
while (m_data[i] != '\n' && i < m_data.size()) {
line2.append(m_data[i]);
i++;
}
TQString paramline = TQString::fromUtf8((&line2[0]), line2.size());
TQ_UINT32 m_numOfBrushes = paramline.left(paramline.find(' ')).toUInt();
m_parasite = paramline.mid(paramline.find(' ') + 1);
i++; // Skip past the second newline
TQ_UINT32 numOfBrushes = 0;
while (numOfBrushes < m_numOfBrushes && i < m_data.size()){
KisBrush * brush = new KisBrush(name() + "_" + numOfBrushes,
m_data,
i);
TQ_CHECK_PTR(brush);
m_brushes.append(brush);
numOfBrushes++;
}
if (!m_brushes.isEmpty()) {
setValid(true);
if (m_brushes.at( 0 )->brushType() == MASK) {
m_brushType = PIPE_MASK;
}
else {
m_brushType = PIPE_IMAGE;
}
setSpacing(m_brushes.at(m_brushes.count() - 1)->spacing());
setWidth(m_brushes.at(0)->width());
setHeight(m_brushes.at(0)->height());
}
m_data.resize(0);
return true;
}
bool KisImagePipeBrush::save()
{
TQFile file(filename());
file.open(IO_WriteOnly | IO_Truncate);
bool ok = saveToDevice(&file);
file.close();
return ok;
}
bool KisImagePipeBrush::saveToDevice(TQIODevice* dev) const
{
TQCString utf8Name = name().utf8(); // Names in v2 brushes are in UTF-8
char const* name = utf8Name.data();
int len = tqstrlen(name);
if (parasite().dim != 1) {
kdWarning(41001) << "Save to file for pipe brushes with dim != not yet supported!" << endl;
return false;
}
// Save this pipe brush: first the header, and then all individual brushes consecutively
// (this needs some care for when we have > 1 dimension), FIXME
// Gimp Pipe Brush header format: Name\n<number of brushes> <parasite>\n
// The name\n
if (dev->writeBlock(name, len) == -1)
return false;
if (dev->putch('\n') == -1)
return false;
// Write the parasite (also writes number of brushes)
if (!m_parasite.saveToDevice(dev))
return false;
if (dev->putch('\n') == -1)
return false;
// <gbr brushes>
for (uint i = 0; i < m_brushes.count(); i++)
if (!m_brushes.at(i)->saveToDevice(dev))
return false;
return true;
}
TQImage KisImagePipeBrush::img()
{
if (m_brushes.isEmpty()) {
return 0;
}
else {
return m_brushes.at(0)->img();
}
}
KisAlphaMaskSP KisImagePipeBrush::mask(const KisPaintInformation& info, double subPixelX, double subPixelY) const
{
if (m_brushes.isEmpty()) return 0;
selectNextBrush(info);
return m_brushes.at(m_currentBrush)->mask(info, subPixelX, subPixelY);
}
KisPaintDeviceSP KisImagePipeBrush::image(KisColorSpace * colorSpace, const KisPaintInformation& info, double subPixelX, double subPixelY) const
{
if (m_brushes.isEmpty()) return 0;
selectNextBrush(info);
return m_brushes.at(m_currentBrush)->image(colorSpace, info, subPixelX, subPixelY);
}
void KisImagePipeBrush::setParasiteString(const TQString& parasite)
{
m_parasiteString = parasite;
m_parasite = KisPipeBrushParasite(parasite);
}
enumBrushType KisImagePipeBrush::brushType() const
{
if (m_brushType == PIPE_IMAGE && useColorAsMask()) {
return PIPE_MASK;
}
else {
return m_brushType;
}
}
bool KisImagePipeBrush::useColorAsMask() const
{
if (m_brushes.count() > 0) {
return m_brushes.at(0)->useColorAsMask();
}
else {
return false;
}
}
void KisImagePipeBrush::setUseColorAsMask(bool useColorAsMask)
{
for (uint i = 0; i < m_brushes.count(); i++) {
m_brushes.at(i)->setUseColorAsMask(useColorAsMask);
}
}
bool KisImagePipeBrush::hasColor() const
{
if (m_brushes.count() > 0) {
return m_brushes.at(0)->hasColor();
}
else {
return false;
}
}
KisBoundary KisImagePipeBrush::boundary() {
Q_ASSERT(!m_brushes.isEmpty());
return m_brushes.at(0)->boundary();
}
void KisImagePipeBrush::selectNextBrush(const KisPaintInformation& info) const {
m_currentBrush = 0;
double angle;
for (int i = 0; i < m_parasite.dim; i++) {
int index = m_parasite.index[i];
switch (m_parasite.selection[i]) {
case KisPipeBrushParasite::Constant: break;
case KisPipeBrushParasite::Incremental:
index = (index + 1) % m_parasite.rank[i]; break;
case KisPipeBrushParasite::Random:
index = int(float(m_parasite.rank[i])*TDEApplication::random() / RAND_MAX); break;
case KisPipeBrushParasite::Pressure:
index = static_cast<int>(info.pressure * (m_parasite.rank[i] - 1) + 0.5); break;
case KisPipeBrushParasite::Angular:
// + M_PI_2 to be compatible with the gimp
angle = atan2(info.movement.y(), info.movement.x()) + M_PI_2;
// We need to be in the [0..2*Pi[ interval so that we can more nicely select it
if (angle < 0)
angle += 2.0 * M_PI;
else if (angle > 2.0 * M_PI)
angle -= 2.0 * M_PI;
index = static_cast<int>(angle / (2.0 * M_PI) * m_parasite.rank[i]);
break;
default:
kdWarning(41001) << "This parasite selectionMode has not been implemented. Reselecting"
<< " to Incremental" << endl;
m_parasite.selection[i] = KisPipeBrushParasite::Incremental;
index = 0;
}
m_parasite.index[i] = index;
m_currentBrush += m_parasite.brushesCount[i] * index;
}
}
bool KisImagePipeBrush::canPaintFor(const KisPaintInformation& info) {
if (info.movement.isNull() && m_parasite.needsMovement)
return false;
return true;
}
void KisImagePipeBrush::makeMaskImage() {
for (uint i = 0; i < m_brushes.count(); i++)
m_brushes.at(i)->makeMaskImage();
setBrushType(PIPE_MASK);
setUseColorAsMask(false);
}
KisImagePipeBrush* KisImagePipeBrush::clone() const {
// The obvious way of cloning each brush in this one doesn't work for some reason...
// XXX Multidimensionals not supported yet, change together with the constructor...
TQValueVector< TQValueVector<KisPaintDevice*> > devices;
TQValueVector<KisPipeBrushParasite::SelectionMode> modes;
devices.push_back(TQValueVector<KisPaintDevice*>());
modes.push_back(m_parasite.selection[0]);
for (uint i = 0; i < m_brushes.count(); i++) {
KisPaintDevice* pd = new KisPaintDevice(
KisMetaRegistry::instance()->csRegistry()->getColorSpace(KisID("RGBA",""),""), "clone pd" );
pd->convertFromTQImage(m_brushes.at(i)->img(), "");
devices.at(0).append(pd);
}
KisImagePipeBrush* c = new KisImagePipeBrush(name(), width(), height(), devices, modes);
// XXX clean up devices
return c;
}
#include "kis_imagepipe_brush.moc"