diff options
Diffstat (limited to 'ksvg/core/KSVGReader.cc')
| -rw-r--r-- | ksvg/core/KSVGReader.cc | 506 |
1 files changed, 0 insertions, 506 deletions
diff --git a/ksvg/core/KSVGReader.cc b/ksvg/core/KSVGReader.cc deleted file mode 100644 index 7a62bb74..00000000 --- a/ksvg/core/KSVGReader.cc +++ /dev/null @@ -1,506 +0,0 @@ -/* - 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 <dom/dom_exception.h> -#include <kdebug.h> -#include <tdelocale.h> -#include <tqmap.h> -#include <ksimpleconfig.h> -#include <KSVGCanvas.h> -#include "KSVGReader.moc" -#include "SVGSVGElementImpl.h" -#include "SVGViewSpecImpl.h" -#include "SVGDocumentImpl.h" -#include "SVGMatrixImpl.h" -#include "SVGShapeImpl.h" -#include "SVGLengthImpl.h" -#include "SVGImageElementImpl.h" -#include "SVGAnimatedLengthImpl.h" -#include "SVGUseElementImpl.h" - -namespace KSVG -{ - -class Helper -{ -public: - static Helper *self(KSVGReader *reader = 0); - - void destroy(); - - void setFit(bool bFit = true) { m_bFit = bFit; } - bool fit() { return m_bFit; } - - SVGDocumentImpl *doc() const { return m_reader->doc(); } - KSVGCanvas *canvas() const { return m_reader->canvas(); } - - void addSVGElement(SVGSVGElementImpl *one, DOM::NodeImpl *two) { m_svgMap.insert(two, one); } - SVGSVGElementImpl *nextSVGElement(SVGElementImpl *elem); - SVGSVGElementImpl *nextSVGElement(DOM::Node elem); - void setFinished(bool error, const TQString &errorDesc = "") { m_reader->setFinished(error, errorDesc); } - - // Error handling - void setErrorDescription(const TQString &err) { m_errorDesc = err; } - TQString errorDescription() { return m_errorDesc; } - bool hasError() const { return !m_errorDesc.isEmpty(); } - - bool getURLMode() const { return m_getURLMode; } - void setGetURLMode(bool mode) { m_getURLMode = mode; } - - TQString SVGFragmentId() const { return m_SVGFragmentId; } - void setSVGFragmentId(const TQString &SVGFragmentId) { m_SVGFragmentId = SVGFragmentId; } - -protected: - Helper(KSVGReader *reader); - -private: - Helper(); - Helper(const Helper &rhs); - Helper &operator=(const Helper &rhs); - - static Helper *m_instance; - TQMap<DOM::NodeImpl *, SVGSVGElementImpl *> m_svgMap; - KSVGReader *m_reader; - bool m_bFit; - bool m_getURLMode; - TQString m_errorDesc; - TQString m_SVGFragmentId; -}; - -class InputHandler : public TQXmlDefaultHandler -{ -public: - virtual bool startDocument(); - virtual bool endDocument(); - virtual bool startElement(const TQString &namespaceURI, - const TQString &localName, - const TQString &qName, - const TQXmlAttributes &atts); - virtual bool endElement(const TQString &namespaceURI, - const TQString &localName, - const TQString &qName); - virtual bool characters(const TQString &ch); - virtual bool warning(const TQXmlParseException &e); - virtual bool error(const TQXmlParseException &e); - virtual bool fatalError(const TQXmlParseException &e); - -private: - DOM::Node *m_rootNode; - DOM::Node *m_currentNode; - DOM::Node m_parentNode; - - bool m_noRendering, m_progressive; -}; - -} - -using namespace KSVG; - -Helper *Helper::m_instance = 0; - -Helper::Helper(KSVGReader *reader) -{ - m_reader = reader; -} - -Helper *Helper::self(KSVGReader *reader) -{ - if(m_instance && reader != 0) - m_instance->m_reader = reader; - if(!m_instance) - { - Q_ASSERT(reader != 0); - m_instance = new Helper(reader); - } - - return m_instance; -} - -void Helper::destroy() -{ - m_svgMap.clear(); -} - -SVGSVGElementImpl *Helper::nextSVGElement(SVGElementImpl *elem) -{ - return nextSVGElement(*elem); -} - -SVGSVGElementImpl *Helper::nextSVGElement(DOM::Node elem) -{ - DOM::Node foundSVG; - DOM::Node shape = elem.parentNode(); - - for(; !shape.isNull(); shape = shape.parentNode()) - { - if(reinterpret_cast<DOM::Element &>(shape).nodeName() == "svg") - { - foundSVG = shape; - break; - } - } - - SVGSVGElementImpl *svg = m_svgMap[foundSVG.handle()]; - return svg; -} - -bool InputHandler::startDocument() -{ - m_rootNode = 0; - m_currentNode = 0; - m_noRendering = false; - - KSimpleConfig config("ksvgpluginrc"); - config.setGroup("Rendering"); - m_progressive = config.readBoolEntry("ProgressiveRendering", true); - - if(Helper::self()->canvas()) - Helper::self()->canvas()->setImmediateUpdate(m_progressive); - - return true; -} - -bool InputHandler::endDocument() -{ - Helper::self()->setFinished(false); - if (Helper::self()->canvas()) - Helper::self()->canvas()->setImmediateUpdate(false); - - return true; -} - -bool InputHandler::characters(const TQString &ch) -{ - kdDebug(26001) << "InputHandler::characters, read " << ch << endl; - - if(ch.simplifyWhiteSpace().isEmpty()) - return true; - - TQString t = ch; - - SVGSVGElementImpl *root = Helper::self()->nextSVGElement(*m_currentNode); - if(root) - { - SVGElementImpl *element = root->ownerDoc()->getElementFromHandle(m_currentNode->handle()); - SVGLangSpaceImpl *langSpace = dynamic_cast<SVGLangSpaceImpl *>(element); - - if(langSpace) - t = langSpace->handleText(ch); - } - - if(!t.isEmpty()) - { - DOM::Text impl = static_cast<DOM::Document *>(Helper::self()->doc())->createTextNode(t); - m_currentNode->appendChild(impl); - } - - return true; -} - -bool InputHandler::startElement(const TQString &namespaceURI, const TQString &, const TQString &qName, const TQXmlAttributes &attrs) -{ - kdDebug(26001) << "InputHandler::startElement, namespaceURI " << namespaceURI << " qName " << qName << endl; - - SVGElementImpl *newElement = 0; - SVGSVGElementImpl *svg = 0; - - if(qName == "svg") - { - DOM::Element impl = static_cast<DOM::Document *>(Helper::self()->doc())->createElementNS(namespaceURI, qName); - newElement = SVGDocumentImpl::createElement(qName, impl, Helper::self()->doc()); - svg = dynamic_cast<SVGSVGElementImpl *>(newElement); - - Helper::self()->addSVGElement(svg, impl.handle()); - - // Need this before we can find our ownerSVGElement (AP) - if(m_currentNode != 0) - { - m_currentNode->appendChild(*svg); - } - else - { - if(Helper::self()->fit()) - { // handle fitting of svg into small drawing area(thumb) - // TODO : aspectratio? and what about svgs that dont provide width and height? - if(attrs.value("viewBox").isEmpty()) - { - SVGLengthImpl *width = SVGSVGElementImpl::createSVGLength(); - SVGLengthImpl *height = SVGSVGElementImpl::createSVGLength(); - width->setValueAsString(attrs.value("width")); - height->setValueAsString(attrs.value("height")); - TQString viewbox = TQString("0 0 %1 %2").arg(width->value()).arg(height->value()); - //kdDebug(26001) << "VIEWBOX : " << viewbox.latin1() << endl; - // HACK - // Does the existing attribute need to be deleted before appending the new attribute? - const_cast<TQXmlAttributes&>(attrs).append("viewBox", TQString::null, "viewBox", viewbox); - width->deref(); - height->deref(); - } - // HACK - // Does the existing attribute need to be deleted before appending the new attribute? - const_cast<TQXmlAttributes&>(attrs).append("width", TQString::null, "width", TQString::number(Helper::self()->canvas()->width())); - const_cast<TQXmlAttributes&>(attrs).append("height", TQString::null, "height", TQString::number(Helper::self()->canvas()->height())); - } - - if(!Helper::self()->SVGFragmentId().isEmpty()) - { - if(svg->currentView()->parseViewSpec(Helper::self()->SVGFragmentId())) - { - svg->setUseCurrentView(true); - } - } - } - - if(m_rootNode == 0) - { - Helper::self()->doc()->appendChild(*svg); - Helper::self()->doc()->setRootElement(svg); - - m_rootNode = svg; - } - } - else - { - if(!m_rootNode && !Helper::self()->getURLMode()) - { - Helper::self()->setErrorDescription(i18n("A legal svg document requires a <svg> root element")); - return false; - } - - DOM::Element impl = static_cast<DOM::Document *>(Helper::self()->doc())->createElementNS(namespaceURI, qName); - newElement = SVGDocumentImpl::createElement(qName, impl, Helper::self()->doc()); - - // m_currentNode == 0 if we are dynamically extending the dom (parsexml...) - // and the file doesn't have a root element - if(m_currentNode != 0) - m_currentNode->appendChild(*newElement); - else - Helper::self()->doc()->appendChild(*newElement); - - // Special logics: - if(qName == "switch" || qName == "pattern" || qName == "mask") - m_noRendering = true; - } - - newElement->setOwnerSVGElement(Helper::self()->nextSVGElement(newElement)); - newElement->setViewportElement(newElement->ownerSVGElement()); - - newElement->setAttributes(attrs); - - if(svg && svg->ownerSVGElement() == 0) - { - SVGImageElementImpl *parentImage = Helper::self()->doc()->parentImage(); - - if(parentImage) - { - // We're being displayed in a document via an 'image' element. Set - // us up to fit into it's rectangle. - parentImage->setupSVGElement(svg); - } - } - - SVGLocatableImpl *locatable = dynamic_cast<SVGLocatableImpl *>(newElement); - - if(locatable) - { - // Set up the cached screenCTM - SVGLocatableImpl *locatableParent = 0; - DOM::Node parentNode = newElement->parentNode(); - - if(!parentNode.isNull()) - { - SVGElementImpl *parent = Helper::self()->doc()->getElementFromHandle(parentNode.handle()); - - if(parent) - locatableParent = dynamic_cast<SVGLocatableImpl *>(parent); - } - - SVGMatrixImpl *parentMatrix = 0; - - if(locatableParent) - parentMatrix = locatableParent->getScreenCTM(); - else - parentMatrix = SVGSVGElementImpl::createSVGMatrix(); - - locatable->updateCachedScreenCTM(parentMatrix); - parentMatrix->deref(); - } - - m_currentNode = newElement; - return !Helper::self()->hasError(); -} - -bool InputHandler::endElement(const TQString &, const TQString &, const TQString &qName) -{ - kdDebug(26001) << "InputHandler::endElement, qName " << qName << endl; - - bool haveCanvas = Helper::self()->canvas(); - - SVGSVGElementImpl *root = Helper::self()->nextSVGElement(*m_currentNode); - SVGElementImpl *element = root ? root->ownerDoc()->getElementFromHandle(m_currentNode->handle()) : Helper::self()->doc()->getElementFromHandle(m_currentNode->handle()); - SVGShapeImpl *shape = dynamic_cast<SVGShapeImpl *>(element); - SVGTestsImpl *tests = dynamic_cast<SVGTestsImpl *>(element); - SVGStylableImpl *style = dynamic_cast<SVGStylableImpl *>(element); - - if(qName != "script" && !m_noRendering && !Helper::self()->getURLMode()) - { - if(!root) - { - if(haveCanvas) - { - if(!m_progressive) - Helper::self()->canvas()->update(); - - Helper::self()->canvas()->blit(); - - TQValueList<SVGUseElementImpl *> forwardReferencingUseElements = Helper::self()->doc()->forwardReferencingUseElements(); - - if(!forwardReferencingUseElements.isEmpty()) - { - // Create the elements again now that we have parsed the whole document. - TQValueList<SVGUseElementImpl *>::iterator it; - - Helper::self()->canvas()->setImmediateUpdate(false); - - for(it = forwardReferencingUseElements.begin(); it != forwardReferencingUseElements.end(); it++) - (*it)->createItem(Helper::self()->canvas()); - - // The newly created items will need to be moved into their correct z-order positions. - Helper::self()->doc()->resortZIndicesOnFinishedLoading(); - } - } - - return true; // we have reached the bottom - } - - if(haveCanvas && (tests ? tests->ok() : true)) - { - if((shape && !shape->isContainer()) || (!shape && element)) - element->createItem(); - } - } - - // Special logics: - if(qName == "switch" || qName == "pattern" || qName == "mask") - { - m_noRendering = false; - bool ok = tests ? tests->ok() : true; - - if((haveCanvas && element && style && ok && style->getDisplay() && style->getVisible() && (qName == "pattern")) || (shape && shape->directRender())) - element->createItem(); - } - - m_parentNode = m_currentNode->parentNode(); // this is needed since otherwise we get temporary vars - m_currentNode = &m_parentNode; - - return true; -} - -bool InputHandler::warning(const TQXmlParseException &e) -{ - kdDebug(26001) << "[" << e.lineNumber() << ":" << e.columnNumber() << "]: WARNING: " << e.message() << endl; - return true; -} - -bool InputHandler::error(const TQXmlParseException &e) -{ - kdDebug(26001) << "[" << e.lineNumber() << ":" << e.columnNumber() << "]: ERROR: " << e.message() << endl; - return true; -} - -bool InputHandler::fatalError(const TQXmlParseException &e) -{ - TQString error; - - if(Helper::self()->hasError()) - { - error = Helper::self()->errorDescription(); - Helper::self()->setErrorDescription(TQString()); - } - else - error = TQString("[%1:%2]: FATAL ERROR: %3").arg(e.lineNumber()).arg(e.columnNumber()).arg(e.message()); - - kdDebug(26001) << "InputHandler::fatalError, " << error << endl; - - Helper::self()->setFinished(true, error); - return true; -} - -struct KSVGReader::Private -{ - TQXmlSimpleReader *reader; - InputHandler *inputHandler; - SVGDocumentImpl *doc; - KSVGCanvas *canvas; -}; - -KSVGReader::KSVGReader(SVGDocumentImpl *doc, KSVGCanvas *canvas, ParsingArgs args) : TQObject(), d(new Private) -{ - d->doc = doc; - d->canvas = canvas; - - d->reader = new TQXmlSimpleReader(); - d->inputHandler = new InputHandler(); - - Helper::self(this); - Helper::self()->setFit(args.fit); - Helper::self()->setGetURLMode(args.getURLMode); - Helper::self()->setSVGFragmentId(args.SVGFragmentId); - - d->reader->setContentHandler(d->inputHandler); - d->reader->setErrorHandler(d->inputHandler); -} - -KSVGReader::~KSVGReader() -{ - Helper::self()->destroy(); - - delete d->reader; - delete d->inputHandler; - delete d; -} - -void KSVGReader::parse(TQXmlInputSource *source) -{ - d->reader->parse(source); -} - -void KSVGReader::finishParsing(bool, const TQString &errorDesc) -{ - Helper::self()->setErrorDescription(errorDesc); -} - -void KSVGReader::setFinished(bool error, const TQString &errorDesc) -{ - kdDebug(26001) << "KSVGReader::setFinished" << endl; - emit finished(error, errorDesc); -} - -SVGDocumentImpl *KSVGReader::doc() -{ - return d->doc; -} - -KSVG::KSVGCanvas *KSVGReader::canvas() -{ - return d->canvas; -} - -// vim:ts=4:noet |