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Diffstat (limited to 'ksvg/impl/SVGColorProfileElementImpl.cc')
| -rw-r--r-- | ksvg/impl/SVGColorProfileElementImpl.cc | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/ksvg/impl/SVGColorProfileElementImpl.cc b/ksvg/impl/SVGColorProfileElementImpl.cc new file mode 100644 index 00000000..f898188b --- /dev/null +++ b/ksvg/impl/SVGColorProfileElementImpl.cc @@ -0,0 +1,271 @@ +/* + Copyright (C) 2001-2003 KSVG Team + This file is part of the KDE project + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#include <kurl.h> +#include <kdebug.h> +#include <kio/netaccess.h> + +#include <qimage.h> + +#include "SVGDocumentImpl.h" +#include "SVGSVGElementImpl.h" + +#include "SVGRenderingIntent.h" + +#include "SVGAnimatedStringImpl.h" +#include "SVGColorProfileElementImpl.h" + +using namespace KSVG; + +#include "SVGColorProfileElementImpl.lut.h" +#include "ksvg_bridge.h" +#include "ksvg_ecma.h" + +SVGColorProfileElementImpl::SVGColorProfileElementImpl(DOM::ElementImpl *impl) : SVGElementImpl(impl), SVGURIReferenceImpl() +{ + KSVG_EMPTY_FLAGS + + m_loaded = false; + + // Spec: Default value 'auto', if not overwritten later + m_renderingIntent = RENDERING_INTENT_AUTO; +} + +SVGColorProfileElementImpl::~SVGColorProfileElementImpl() +{ + if(m_loaded) + closeColorProfile(); +} + +/* +@namespace KSVG +@begin SVGColorProfileElementImpl::s_hashTable 5 + name SVGColorProfileElementImpl::Name DontDelete|ReadOnly + href SVGColorProfileElementImpl::Href DontDelete|ReadOnly + rendering-intent SVGColorProfileElementImpl::RenderingIntent DontDelete|ReadOnly +@end +*/ + +Value SVGColorProfileElementImpl::getValueProperty(ExecState *exec, int token) const +{ + switch(token) + { + case Name: + return String(m_name); + case Href: + return href()->cache(exec); + case RenderingIntent: + return Number(m_renderingIntent); + default: + kdWarning() << "Unhandled token in " << k_funcinfo << " : " << token << endl; + return Undefined(); + } +} + +void SVGColorProfileElementImpl::putValueProperty(ExecState *exec, int token, const Value &value, int attr) +{ + // This class has just ReadOnly properties, only with the Internal flag set + // it's allowed to modify those. + if(!(attr & KJS::Internal)) + return; + + switch(token) + { + case Name: + m_name = value.toString(exec).string(); + ownerDoc()->rootElement()->addToIdMap(m_name.string(), this); + break; + case Href: + href()->setBaseVal(value.toString(exec).string()); + break; + case RenderingIntent: + { + QString compare = value.toString(exec).qstring().lower(); + + if(compare == "perceptual") + m_renderingIntent = RENDERING_INTENT_PERCEPTUAL; + else if(compare == "relative-colorimetric") + m_renderingIntent = RENDERING_INTENT_RELATIVE_COLORIMETRIC; + else if(compare == "saturation") + m_renderingIntent = RENDERING_INTENT_SATURATION; + else if(compare == "absolute-colorimetric") + m_renderingIntent = RENDERING_INTENT_ABSOLUTE_COLORIMETRIC; + else + m_renderingIntent = RENDERING_INTENT_AUTO; + break; + } + default: + kdWarning() << "Unhandled token in " << k_funcinfo << " : " << token << endl; + } +} + +void SVGColorProfileElementImpl::setLocal(const DOM::DOMString &local) +{ + m_local = local; +} + +DOM::DOMString SVGColorProfileElementImpl::local() const +{ + return m_local; +} + +void SVGColorProfileElementImpl::setName(const DOM::DOMString &name) +{ + m_name = name; +} + +DOM::DOMString SVGColorProfileElementImpl::name() const +{ + return m_name; +} + +void SVGColorProfileElementImpl::setRenderingIntent(unsigned short renderingIntent) +{ + m_renderingIntent = renderingIntent; +} + +unsigned short SVGColorProfileElementImpl::renderingIntent() const +{ + return m_renderingIntent; +} + +bool SVGColorProfileElementImpl::canLoad() +{ + QString open; + bool temp; + return canLoad(false, temp, open, true); +} + +bool SVGColorProfileElementImpl::canLoad(bool remote, bool &tempFile, QString &open, bool verbose) +{ + KURL file; + + if(!KURL::isRelativeURL(href()->baseVal().string())) + file = KURL(href()->baseVal().string()); + else + file = KURL(ownerDoc()->baseUrl(), href()->baseVal().string()); + + if(file.path().isEmpty()) + { + if(verbose) + kdDebug() << "Couldn't load color profile " << file.path() << "!" << endl; + + return false; + } + + if(file.isLocalFile()) + { + open = file.path(); + + if(!QFile::exists(open)) + { + if(verbose) + kdDebug() << "Couldn't load color profile " << file.path() << "! It does not exist." << endl; + + return false; + } + } + else + { + if(remote) + { + if(KIO::NetAccess::download(file, open, 0)) + tempFile = true; + } + } + + return true; +} + +bool SVGColorProfileElementImpl::loadColorProfile() +{ + QString open; + bool tempFile = false; + + if(!canLoad(true, tempFile, open, false)) + return false; + + m_hInput = cmsOpenProfileFromFile(open.latin1(), "r"); + m_hOutput = cmsCreate_sRGBProfile(); + + unsigned int dwIn = BYTES_SH(2) | CHANNELS_SH(_cmsChannelsOf(m_inputColorSpace)); + unsigned int dwOut = BYTES_SH(2) | CHANNELS_SH(_cmsChannelsOf(m_outputColorSpace)); + + if(m_renderingIntent != RENDERING_INTENT_AUTO) + m_hTrans = cmsCreateTransform(m_hInput, dwIn, m_hOutput, dwOut, m_renderingIntent - 2, cmsFLAGS_NOTPRECALC); + else + m_hTrans = cmsCreateTransform(m_hInput, dwIn, m_hOutput, dwOut, cmsTakeRenderingIntent(m_hInput), cmsFLAGS_NOTPRECALC); + + m_inputColorSpace = cmsGetColorSpace(m_hInput); + m_outputColorSpace = cmsGetColorSpace(m_hOutput); + m_loaded = true; + + if(tempFile) + KIO::NetAccess::removeTempFile(open); + + return true; +} + +void SVGColorProfileElementImpl::closeColorProfile() +{ + cmsDeleteTransform(m_hTrans); + cmsCloseProfile(m_hInput); +} + +QRgb SVGColorProfileElementImpl::correctPixel(float r, float g, float b) +{ + if(!m_loaded) + { + if(!loadColorProfile()) + return qRgb(0, 0, 0); + } + + unsigned short input[MAXCHANNELS], output[MAXCHANNELS]; + + input[0] = ((unsigned int) r) * 257; + input[1] = ((unsigned int) g) * 257; + input[2] = ((unsigned int) b) * 257; + + cmsDoTransform(m_hTrans, input, output, 1); + + if(m_outputColorSpace == icSigRgbData) + return qRgb(output[0] / 257, output[1] / 257, output[2] / 257); + + return qRgb(0, 0, 0); +} + +QImage *SVGColorProfileElementImpl::correctImage(QImage *input) +{ + if(!canLoad()) + return input; + + for(int y = 0; y < input->height(); y++) + { + for(int x = 0; x < input->width(); x++) + { + QRgb pixel = input->pixel(x, y); + input->setPixel(x, y, correctPixel(qRed(pixel), qGreen(pixel), qBlue(pixel))); + } + } + + return input; +} + +// vim:ts=4:noet |