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/*
* This file is part of Chalk
*
* Copyright (c) 2005 Michael Thaler <[email protected]>
*
* ported from Gimp, Copyright (C) 1997 Eiichi Takamori <[email protected]>
* original pixelize.c for GIMP 0.54 by Tracy Scott
*
* 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 <limits.h>
#include <stdlib.h>
#include <vector>
#include <tdelocale.h>
#include <kiconloader.h>
#include <kinstance.h>
#include <tdemessagebox.h>
#include <kstandarddirs.h>
#include <tdetempfile.h>
#include <kdebug.h>
#include <kgenericfactory.h>
#include <knuminput.h>
#include <tdefiledialog.h>
#include <KoFilterManager.h>
#include <kis_doc.h>
#include <kis_image.h>
#include "kis_meta_registry.h"
#include <kis_iterators_pixel.h>
#include <kis_layer.h>
#include <kis_paint_layer.h>
#include <kis_group_layer.h>
#include <kis_transaction.h>
#include <kis_undo_adapter.h>
#include <kis_global.h>
#include <kis_types.h>
#include <kis_progress_subject.h>
#include <kis_progress_display_interface.h>
#include <kis_colorspace.h>
#include <kis_colorspace_factory_registry.h>
#include <kis_view.h>
#include <kis_paint_device.h>
#include <kis_channelinfo.h>
#include "kis_channel_separator.h"
KisChannelSeparator::KisChannelSeparator(KisView * view)
: m_view(view)
{
}
void KisChannelSeparator::separate(KisProgressDisplayInterface * progress, enumSepAlphaOptions alphaOps, enumSepSource sourceOps, enumSepOutput outputOps, bool downscale, bool toColor)
{
KisImageSP image = m_view->canvasSubject()->currentImg();
if (!image) return;
KisLayerSP layer = image->activeLayer();
if (!layer) return;
KisPaintDeviceSP src = image->activeDevice();
if (!src) return;
m_cancelRequested = false;
if ( progress )
progress->setSubject(this, true, true);
emit notifyProgressStage(i18n("Separating image..."), 0);
KisColorSpace * dstCs = 0;
TQ_UINT32 numberOfChannels = src->nChannels();
KisColorSpace * srcCs = src->colorSpace();
TQValueVector<KisChannelInfo *> channels = srcCs->channels();
// Use the flattened image, if required
switch(sourceOps) {
case(ALL_LAYERS):
src = image->mergedImage();
break;
default:
break;
}
vKisPaintDeviceSP layers;
TQValueVector<KisChannelInfo *>::const_iterator begin = channels.begin();
TQValueVector<KisChannelInfo *>::const_iterator end = channels.end();
TQRect rect = src->exactBounds();
int i = 0;
TQ_UINT32 channelIndex = 0;
for (TQValueVector<KisChannelInfo *>::const_iterator it = begin; it != end; ++it, ++channelIndex)
{
KisChannelInfo * ch = (*it);
if (ch->channelType() == KisChannelInfo::ALPHA && alphaOps != CREATE_ALPHA_SEPARATION) {
continue;
}
TQ_INT32 channelSize = ch->size();
TQ_INT32 channelPos = ch->pos();
TQ_INT32 destSize = 1;
KisPaintDeviceSP dev;
if (toColor) {
// We don't downscale if we separate to color channels
dev = new KisPaintDevice(srcCs, "color separations");
}
else {
if (channelSize == 1 || downscale) {
dev = new KisPaintDevice( KisMetaRegistry::instance()->csRegistry()->getColorSpace(KisID("GRAYA",""),"" ), "8 bit grayscale sep");
}
else {
dev = new KisPaintDevice( KisMetaRegistry::instance()->csRegistry()->getColorSpace(KisID("GRAYA16",""),"" ), "16 bit grayscale sep");
destSize = 2;
}
}
dstCs = dev->colorSpace();
layers.push_back(dev);
for (TQ_INT32 row = 0; row < rect.height(); ++row) {
KisHLineIteratorPixel srcIt = src->createHLineIterator(rect.x(), rect.y() + row, rect.width(), false);
KisHLineIteratorPixel dstIt = dev->createHLineIterator(rect.x(), rect.y() + row, rect.width(), true);
while( ! srcIt.isDone() )
{
if (srcIt.isSelected())
{
if (toColor) {
dstCs->getSingleChannelPixel(dstIt.rawData(), srcIt.rawData(), channelIndex);
if (alphaOps == COPY_ALPHA_TO_SEPARATIONS) {
//dstCs->setAlpha(dstIt.rawData(), srcIt.rawData()[srcAlphaPos], 1);
dstCs->setAlpha(dstIt.rawData(), srcCs->getAlpha(srcIt.rawData()), 1);
}
else {
dstCs->setAlpha(dstIt.rawData(), OPACITY_OPAQUE, 1);
}
}
else {
// To grayscale
// Decide wether we need downscaling
if (channelSize == 1 && destSize == 1) {
// Both 8-bit channels
dstIt.rawData()[0] = srcIt.rawData()[channelPos];
if (alphaOps == COPY_ALPHA_TO_SEPARATIONS) {
dstCs->setAlpha(dstIt.rawData(), srcCs->getAlpha(srcIt.rawData()), 1);
}
else {
dstCs->setAlpha(dstIt.rawData(), OPACITY_OPAQUE, 1);
}
}
else if (channelSize == 2 && destSize == 2) {
// Both 16-bit
dstIt.rawData()[0] = srcIt.rawData()[channelPos];
dstIt.rawData()[1] = srcIt.rawData()[channelPos + 1];
if (alphaOps == COPY_ALPHA_TO_SEPARATIONS) {
dstCs->setAlpha(dstIt.rawData(), srcCs->getAlpha(srcIt.rawData()), 1);
}
else {
dstCs->setAlpha(dstIt.rawData(), OPACITY_OPAQUE, 1);
}
}
else if (channelSize != 1 && destSize == 1) {
// Downscale
memset(dstIt.rawData(), srcCs->scaleToU8(srcIt.rawData(), channelPos), 1);
// XXX: Do alpha
dstCs->setAlpha(dstIt.rawData(), OPACITY_OPAQUE, 1);
}
else if (channelSize != 2 && destSize == 2) {
// Upscale
dstIt.rawData()[0] = srcCs->scaleToU8(srcIt.rawData(), channelPos);
// XXX: Do alpha
dstCs->setAlpha(dstIt.rawData(), OPACITY_OPAQUE, 1);
}
}
}
++dstIt;
++srcIt;
}
}
++i;
emit notifyProgress((i * 100) / numberOfChannels);
if (m_cancelRequested) {
break;
}
}
vKisPaintDeviceSP_it deviceIt = layers.begin();
emit notifyProgressDone();
if (!m_cancelRequested) {
KisUndoAdapter * undo = 0;
if ((undo = image->undoAdapter()) && undo->undo()) {
undo->beginMacro(i18n("Separate Image"));
}
// Flatten the image if required
switch(sourceOps) {
case(ALL_LAYERS):
image->flatten();
break;
default:
break;
}
for (TQValueVector<KisChannelInfo *>::const_iterator it = begin; it != end; ++it)
{
KisChannelInfo * ch = (*it);
if (ch->channelType() == KisChannelInfo::ALPHA && alphaOps != CREATE_ALPHA_SEPARATION) {
// Don't make an separate separation of the alpha channel if the user didn't ask for it.
continue;
}
if (outputOps == TO_LAYERS) {
KisPaintLayerSP l = new KisPaintLayer( image, ch->name(), OPACITY_OPAQUE, *deviceIt);
image->addLayer( dynamic_cast<KisLayer*>(l.data()), image->rootLayer(), 0);
}
else {
TQStringList listMimeFilter = KoFilterManager::mimeFilter("application/x-chalk", KoFilterManager::Export);
TQString mimelist = listMimeFilter.join(" ");
KFileDialog fd (TQString(), mimelist, m_view, "Export Layer", true);
fd.setCaption(i18n("Export Layer") + "(" + ch->name() + ")");
fd.setMimeFilter(listMimeFilter);
fd.setOperationMode(KFileDialog::Saving);
fd.setURL(KURL(ch->name()));
if (!fd.exec()) return;
KURL url = fd.selectedURL();
TQString mimefilter = fd.currentMimeFilter();
if (url.isEmpty())
return;
KisPaintLayerSP l = new KisPaintLayer( image, ch->name(), OPACITY_OPAQUE, *deviceIt);
TQRect r = l->exactBounds();
KisDoc d;
d.prepareForImport();
KisImageSP dst = new KisImage(d.undoAdapter(), r.width(), r.height(), (*deviceIt)->colorSpace(), l->name());
d.setCurrentImage( dst );
dst->addLayer(l->clone(), dst->rootLayer(), 0);
d.setOutputMimeType(mimefilter.latin1());
d.exp0rt(url);
}
++deviceIt;
}
if (undo && undo->undo()) {
undo->endMacro();
}
m_view->canvasSubject()->document()->setModified(true);
}
}
#include "kis_channel_separator.moc"
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