diff --git a/libs/flake/svg/SvgParser.cpp b/libs/flake/svg/SvgParser.cpp index 7453b0043a..a188028d33 100644 --- a/libs/flake/svg/SvgParser.cpp +++ b/libs/flake/svg/SvgParser.cpp @@ -1,1858 +1,1860 @@ /* This file is part of the KDE project * Copyright (C) 2002-2005,2007 Rob Buis * Copyright (C) 2002-2004 Nicolas Goutte * Copyright (C) 2005-2006 Tim Beaulen * Copyright (C) 2005-2009 Jan Hambrecht * Copyright (C) 2005,2007 Thomas Zander * Copyright (C) 2006-2007 Inge Wallin * Copyright (C) 2007-2008,2010 Thorsten Zachmann * 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 "SvgParser.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "KoFilterEffectStack.h" #include "KoFilterEffectLoadingContext.h" #include #include #include #include "SvgUtil.h" #include "SvgShape.h" #include "SvgGraphicContext.h" #include "SvgFilterHelper.h" #include "SvgGradientHelper.h" #include "SvgClipPathHelper.h" #include "parsers/SvgTransformParser.h" #include "kis_pointer_utils.h" #include #include #include #include #include "kis_dom_utils.h" #include "kis_algebra_2d.h" #include "kis_debug.h" #include "kis_global.h" #include struct SvgParser::DeferredUseStore { struct El { El(const KoXmlElement* ue, const QString& key) : m_useElement(ue), m_key(key) { } const KoXmlElement* m_useElement; QString m_key; }; DeferredUseStore(SvgParser* p) : m_parse(p) { } void add(const KoXmlElement* useE, const QString& key) { m_uses.push_back(El(useE, key)); } bool empty() const { return m_uses.empty(); } void checkPendingUse(const KoXmlElement &b, QList& shapes) { KoShape* shape = 0; const QString id = b.attribute("id"); if (id.isEmpty()) return; // qDebug() << "Checking id: " << id; auto i = std::partition(m_uses.begin(), m_uses.end(), [&](const El& e) -> bool {return e.m_key != id;}); while (i != m_uses.end()) { const El& el = m_uses.back(); if (m_parse->m_context.hasDefinition(el.m_key)) { // qDebug() << "Found pending use for id: " << el.m_key; shape = m_parse->resolveUse(*(el.m_useElement), el.m_key); if (shape) { shapes.append(shape); } } m_uses.pop_back(); } } ~DeferredUseStore() { while (!m_uses.empty()) { const El& el = m_uses.back(); debugFlake << "WARNING: could not find path in m_uses; }; SvgParser::SvgParser(KoDocumentResourceManager *documentResourceManager) : m_context(documentResourceManager) , m_documentResourceManager(documentResourceManager) { } SvgParser::~SvgParser() { qDeleteAll(m_symbols); } void SvgParser::setXmlBaseDir(const QString &baseDir) { m_context.setInitialXmlBaseDir(baseDir); setFileFetcher( [this](const QString &name) { const QString fileName = m_context.xmlBaseDir() + QDir::separator() + name; QFile file(fileName); - KIS_SAFE_ASSERT_RECOVER_RETURN_VALUE(file.exists(), QByteArray()); + if (!file.exists()) { + return QByteArray(); + } file.open(QIODevice::ReadOnly); return file.readAll(); }); } void SvgParser::setResolution(const QRectF boundsInPixels, qreal pixelsPerInch) { KIS_ASSERT(!m_context.currentGC()); m_context.pushGraphicsContext(); m_context.currentGC()->isResolutionFrame = true; m_context.currentGC()->pixelsPerInch = pixelsPerInch; const qreal scale = 72.0 / pixelsPerInch; const QTransform t = QTransform::fromScale(scale, scale); m_context.currentGC()->currentBoundingBox = boundsInPixels; m_context.currentGC()->matrix = t; } void SvgParser::setForcedFontSizeResolution(qreal value) { if (qFuzzyCompare(value, 0.0)) return; m_context.currentGC()->forcedFontSizeCoeff = 72.0 / value; } QList SvgParser::shapes() const { return m_shapes; } QVector SvgParser::takeSymbols() { QVector symbols = m_symbols; m_symbols.clear(); return symbols; } // Helper functions // --------------------------------------------------------------------------------------- SvgGradientHelper* SvgParser::findGradient(const QString &id) { SvgGradientHelper *result = 0; // check if gradient was already parsed, and return it if (m_gradients.contains(id)) { result = &m_gradients[ id ]; } // check if gradient was stored for later parsing if (!result && m_context.hasDefinition(id)) { const KoXmlElement &e = m_context.definition(id); if (e.tagName().contains("Gradient")) { result = parseGradient(m_context.definition(id)); } } return result; } QSharedPointer SvgParser::findPattern(const QString &id, const KoShape *shape) { QSharedPointer result; // check if gradient was stored for later parsing if (m_context.hasDefinition(id)) { const KoXmlElement &e = m_context.definition(id); if (e.tagName() == "pattern") { result = parsePattern(m_context.definition(id), shape); } } return result; } SvgFilterHelper* SvgParser::findFilter(const QString &id, const QString &href) { // check if filter was already parsed, and return it if (m_filters.contains(id)) return &m_filters[ id ]; // check if filter was stored for later parsing if (!m_context.hasDefinition(id)) return 0; const KoXmlElement &e = m_context.definition(id); if (KoXml::childNodesCount(e) == 0) { QString mhref = e.attribute("xlink:href").mid(1); if (m_context.hasDefinition(mhref)) return findFilter(mhref, id); else return 0; } else { // ok parse filter now if (! parseFilter(m_context.definition(id), m_context.definition(href))) return 0; } // return successfully parsed filter or 0 QString n; if (href.isEmpty()) n = id; else n = href; if (m_filters.contains(n)) return &m_filters[ n ]; else return 0; } SvgClipPathHelper* SvgParser::findClipPath(const QString &id) { return m_clipPaths.contains(id) ? &m_clipPaths[id] : 0; } // Parsing functions // --------------------------------------------------------------------------------------- qreal SvgParser::parseUnit(const QString &unit, bool horiz, bool vert, const QRectF &bbox) { return SvgUtil::parseUnit(m_context.currentGC(), unit, horiz, vert, bbox); } qreal SvgParser::parseUnitX(const QString &unit) { return SvgUtil::parseUnitX(m_context.currentGC(), unit); } qreal SvgParser::parseUnitY(const QString &unit) { return SvgUtil::parseUnitY(m_context.currentGC(), unit); } qreal SvgParser::parseUnitXY(const QString &unit) { return SvgUtil::parseUnitXY(m_context.currentGC(), unit); } qreal SvgParser::parseAngular(const QString &unit) { return SvgUtil::parseUnitAngular(m_context.currentGC(), unit); } SvgGradientHelper* SvgParser::parseGradient(const KoXmlElement &e) { // IMPROVEMENTS: // - Store the parsed colorstops in some sort of a cache so they don't need to be parsed again. // - A gradient inherits attributes it does not have from the referencing gradient. // - Gradients with no color stops have no fill or stroke. // - Gradients with one color stop have a solid color. SvgGraphicsContext *gc = m_context.currentGC(); if (!gc) return 0; SvgGradientHelper gradHelper; QString gradientId = e.attribute("id"); if (gradientId.isEmpty()) return 0; // check if we have this gradient already parsed // copy existing gradient if it exists if (m_gradients.contains(gradientId)) { return &m_gradients[gradientId]; } if (e.hasAttribute("xlink:href")) { // strip the '#' symbol QString href = e.attribute("xlink:href").mid(1); if (!href.isEmpty()) { // copy the referenced gradient if found SvgGradientHelper *pGrad = findGradient(href); if (pGrad) { gradHelper = *pGrad; } } } const QGradientStops defaultStops = gradHelper.gradient()->stops(); if (e.attribute("gradientUnits") == "userSpaceOnUse") { gradHelper.setGradientUnits(KoFlake::UserSpaceOnUse); } m_context.pushGraphicsContext(e); uploadStyleToContext(e); if (e.tagName() == "linearGradient") { QLinearGradient *g = new QLinearGradient(); if (gradHelper.gradientUnits() == KoFlake::ObjectBoundingBox) { g->setCoordinateMode(QGradient::ObjectBoundingMode); g->setStart(QPointF(SvgUtil::fromPercentage(e.attribute("x1", "0%")), SvgUtil::fromPercentage(e.attribute("y1", "0%")))); g->setFinalStop(QPointF(SvgUtil::fromPercentage(e.attribute("x2", "100%")), SvgUtil::fromPercentage(e.attribute("y2", "0%")))); } else { g->setStart(QPointF(parseUnitX(e.attribute("x1")), parseUnitY(e.attribute("y1")))); g->setFinalStop(QPointF(parseUnitX(e.attribute("x2")), parseUnitY(e.attribute("y2")))); } gradHelper.setGradient(g); } else if (e.tagName() == "radialGradient") { QRadialGradient *g = new QRadialGradient(); if (gradHelper.gradientUnits() == KoFlake::ObjectBoundingBox) { g->setCoordinateMode(QGradient::ObjectBoundingMode); g->setCenter(QPointF(SvgUtil::fromPercentage(e.attribute("cx", "50%")), SvgUtil::fromPercentage(e.attribute("cy", "50%")))); g->setRadius(SvgUtil::fromPercentage(e.attribute("r", "50%"))); g->setFocalPoint(QPointF(SvgUtil::fromPercentage(e.attribute("fx", "50%")), SvgUtil::fromPercentage(e.attribute("fy", "50%")))); } else { g->setCenter(QPointF(parseUnitX(e.attribute("cx")), parseUnitY(e.attribute("cy")))); g->setFocalPoint(QPointF(parseUnitX(e.attribute("fx")), parseUnitY(e.attribute("fy")))); g->setRadius(parseUnitXY(e.attribute("r"))); } gradHelper.setGradient(g); } else { qDebug() << "WARNING: Failed to parse gradient with tag" << e.tagName(); } // handle spread method QGradient::Spread spreadMethod = QGradient::PadSpread; QString spreadMethodStr = e.attribute("spreadMethod"); if (!spreadMethodStr.isEmpty()) { if (spreadMethodStr == "reflect") { spreadMethod = QGradient::ReflectSpread; } else if (spreadMethodStr == "repeat") { spreadMethod = QGradient::RepeatSpread; } } gradHelper.setSpreadMode(spreadMethod); // Parse the color stops. m_context.styleParser().parseColorStops(gradHelper.gradient(), e, gc, defaultStops); if (e.hasAttribute("gradientTransform")) { SvgTransformParser p(e.attribute("gradientTransform")); if (p.isValid()) { gradHelper.setTransform(p.transform()); } } m_context.popGraphicsContext(); m_gradients.insert(gradientId, gradHelper); return &m_gradients[gradientId]; } inline QPointF bakeShapeOffset(const QTransform &patternTransform, const QPointF &shapeOffset) { QTransform result = patternTransform * QTransform::fromTranslate(-shapeOffset.x(), -shapeOffset.y()) * patternTransform.inverted(); KIS_ASSERT_RECOVER_NOOP(result.type() <= QTransform::TxTranslate); return QPointF(result.dx(), result.dy()); } QSharedPointer SvgParser::parsePattern(const KoXmlElement &e, const KoShape *shape) { /** * Unlike the gradient parsing function, this method is called every time we * *reference* the pattern, not when we define it. Therefore we can already * use the coordinate system of the destination. */ QSharedPointer pattHelper; SvgGraphicsContext *gc = m_context.currentGC(); if (!gc) return pattHelper; const QString patternId = e.attribute("id"); if (patternId.isEmpty()) return pattHelper; pattHelper = toQShared(new KoVectorPatternBackground); if (e.hasAttribute("xlink:href")) { // strip the '#' symbol QString href = e.attribute("xlink:href").mid(1); if (!href.isEmpty() &&href != patternId) { // copy the referenced pattern if found QSharedPointer pPatt = findPattern(href, shape); if (pPatt) { pattHelper = pPatt; } } } pattHelper->setReferenceCoordinates( KoFlake::coordinatesFromString(e.attribute("patternUnits"), pattHelper->referenceCoordinates())); pattHelper->setContentCoordinates( KoFlake::coordinatesFromString(e.attribute("patternContentUnits"), pattHelper->contentCoordinates())); if (e.hasAttribute("patternTransform")) { SvgTransformParser p(e.attribute("patternTransform")); if (p.isValid()) { pattHelper->setPatternTransform(p.transform()); } } if (pattHelper->referenceCoordinates() == KoFlake::ObjectBoundingBox) { QRectF referenceRect( SvgUtil::fromPercentage(e.attribute("x", "0%")), SvgUtil::fromPercentage(e.attribute("y", "0%")), SvgUtil::fromPercentage(e.attribute("width", "0%")), // 0% is according to SVG 1.1, don't ask me why! SvgUtil::fromPercentage(e.attribute("height", "0%"))); // 0% is according to SVG 1.1, don't ask me why! pattHelper->setReferenceRect(referenceRect); } else { QRectF referenceRect( parseUnitX(e.attribute("x", "0")), parseUnitY(e.attribute("y", "0")), parseUnitX(e.attribute("width", "0")), // 0 is according to SVG 1.1, don't ask me why! parseUnitY(e.attribute("height", "0"))); // 0 is according to SVG 1.1, don't ask me why! pattHelper->setReferenceRect(referenceRect); } /** * In Krita shapes X,Y coordinates are baked into the shape global transform, but * the pattern should be painted in "user" coordinates. Therefore, we should handle * this offfset separately. * * TODO: Please also note that this offset is different from extraShapeOffset(), * because A.inverted() * B != A * B.inverted(). I'm not sure which variant is * correct (DK) */ const QTransform dstShapeTransform = shape->absoluteTransformation(0); const QTransform shapeOffsetTransform = dstShapeTransform * gc->matrix.inverted(); KIS_SAFE_ASSERT_RECOVER_NOOP(shapeOffsetTransform.type() <= QTransform::TxTranslate); const QPointF extraShapeOffset(shapeOffsetTransform.dx(), shapeOffsetTransform.dy()); m_context.pushGraphicsContext(e); gc = m_context.currentGC(); gc->workaroundClearInheritedFillProperties(); // HACK! // start building shape tree from scratch gc->matrix = QTransform(); const QRectF boundingRect = shape->outline().boundingRect()/*.translated(extraShapeOffset)*/; const QTransform relativeToShape(boundingRect.width(), 0, 0, boundingRect.height(), boundingRect.x(), boundingRect.y()); // WARNING1: OBB and ViewBox transformations are *baked* into the pattern shapes! // although we expect the pattern be reusable, but it is not so! // WARNING2: the pattern shapes are stored in *User* coordinate system, although // the "official" content system might be either OBB or User. It means that // this baked transform should be stripped before writing the shapes back // into SVG if (e.hasAttribute("viewBox")) { gc->currentBoundingBox = pattHelper->referenceCoordinates() == KoFlake::ObjectBoundingBox ? relativeToShape.mapRect(pattHelper->referenceRect()) : pattHelper->referenceRect(); applyViewBoxTransform(e); pattHelper->setContentCoordinates(pattHelper->referenceCoordinates()); } else if (pattHelper->contentCoordinates() == KoFlake::ObjectBoundingBox) { gc->matrix = relativeToShape * gc->matrix; } // We do *not* apply patternTransform here! Here we only bake the untransformed // version of the shape. The transformed one will be done in the very end while rendering. QList patternShapes = parseContainer(e); if (pattHelper->contentCoordinates() == KoFlake::UserSpaceOnUse) { // In Krita we normalize the shapes, bake this transform into the pattern shapes const QPointF offset = bakeShapeOffset(pattHelper->patternTransform(), extraShapeOffset); Q_FOREACH (KoShape *shape, patternShapes) { shape->applyAbsoluteTransformation(QTransform::fromTranslate(offset.x(), offset.y())); } } if (pattHelper->referenceCoordinates() == KoFlake::UserSpaceOnUse) { // In Krita we normalize the shapes, bake this transform into reference rect // NOTE: this is possible *only* when pattern transform is not perspective // (which is always true for SVG) const QPointF offset = bakeShapeOffset(pattHelper->patternTransform(), extraShapeOffset); QRectF ref = pattHelper->referenceRect(); ref.translate(offset); pattHelper->setReferenceRect(ref); } m_context.popGraphicsContext(); gc = m_context.currentGC(); if (!patternShapes.isEmpty()) { pattHelper->setShapes(patternShapes); } return pattHelper; } bool SvgParser::parseFilter(const KoXmlElement &e, const KoXmlElement &referencedBy) { SvgFilterHelper filter; // Use the filter that is referencing, or if there isn't one, the original filter KoXmlElement b; if (!referencedBy.isNull()) b = referencedBy; else b = e; // check if we are referencing another filter if (e.hasAttribute("xlink:href")) { QString href = e.attribute("xlink:href").mid(1); if (! href.isEmpty()) { // copy the referenced filter if found SvgFilterHelper *refFilter = findFilter(href); if (refFilter) filter = *refFilter; } } else { filter.setContent(b); } if (b.attribute("filterUnits") == "userSpaceOnUse") filter.setFilterUnits(KoFlake::UserSpaceOnUse); if (b.attribute("primitiveUnits") == "objectBoundingBox") filter.setPrimitiveUnits(KoFlake::ObjectBoundingBox); // parse filter region rectangle if (filter.filterUnits() == KoFlake::UserSpaceOnUse) { filter.setPosition(QPointF(parseUnitX(b.attribute("x")), parseUnitY(b.attribute("y")))); filter.setSize(QSizeF(parseUnitX(b.attribute("width")), parseUnitY(b.attribute("height")))); } else { // x, y, width, height are in percentages of the object referencing the filter // so we just parse the percentages filter.setPosition(QPointF(SvgUtil::fromPercentage(b.attribute("x", "-0.1")), SvgUtil::fromPercentage(b.attribute("y", "-0.1")))); filter.setSize(QSizeF(SvgUtil::fromPercentage(b.attribute("width", "1.2")), SvgUtil::fromPercentage(b.attribute("height", "1.2")))); } m_filters.insert(b.attribute("id"), filter); return true; } bool SvgParser::parseMarker(const KoXmlElement &e) { const QString id = e.attribute("id"); if (id.isEmpty()) return false; QScopedPointer marker(new KoMarker()); marker->setCoordinateSystem( KoMarker::coordinateSystemFromString(e.attribute("markerUnits", "strokeWidth"))); marker->setReferencePoint(QPointF(parseUnitX(e.attribute("refX")), parseUnitY(e.attribute("refY")))); marker->setReferenceSize(QSizeF(parseUnitX(e.attribute("markerWidth", "3")), parseUnitY(e.attribute("markerHeight", "3")))); const QString orientation = e.attribute("orient", "0"); if (orientation == "auto") { marker->setAutoOrientation(true); } else { marker->setExplicitOrientation(parseAngular(orientation)); } // ensure that the clip path is loaded in local coordinates system m_context.pushGraphicsContext(e, false); m_context.currentGC()->matrix = QTransform(); m_context.currentGC()->currentBoundingBox = QRectF(QPointF(0, 0), marker->referenceSize()); KoShape *markerShape = parseGroup(e); m_context.popGraphicsContext(); if (!markerShape) return false; marker->setShapes({markerShape}); m_markers.insert(id, QExplicitlySharedDataPointer(marker.take())); return true; } bool SvgParser::parseSymbol(const KoXmlElement &e) { const QString id = e.attribute("id"); if (id.isEmpty()) return false; QScopedPointer svgSymbol(new KoSvgSymbol()); // ensure that the clip path is loaded in local coordinates system m_context.pushGraphicsContext(e, false); m_context.currentGC()->matrix = QTransform(); m_context.currentGC()->currentBoundingBox = QRectF(0.0, 0.0, 1.0, 1.0); QString title = e.firstChildElement("title").toElement().text(); QScopedPointer symbolShape(parseGroup(e)); m_context.popGraphicsContext(); if (!symbolShape) return false; svgSymbol->shape = symbolShape.take(); svgSymbol->title = title; svgSymbol->id = id; if (title.isEmpty()) svgSymbol->title = id; if (svgSymbol->shape->boundingRect() == QRectF(0.0, 0.0, 0.0, 0.0)) { debugFlake << "Symbol" << id << "seems to be empty, discarding"; return false; } m_symbols << svgSymbol.take(); return true; } bool SvgParser::parseClipPath(const KoXmlElement &e) { SvgClipPathHelper clipPath; const QString id = e.attribute("id"); if (id.isEmpty()) return false; clipPath.setClipPathUnits( KoFlake::coordinatesFromString(e.attribute("clipPathUnits"), KoFlake::UserSpaceOnUse)); // ensure that the clip path is loaded in local coordinates system m_context.pushGraphicsContext(e); m_context.currentGC()->matrix = QTransform(); m_context.currentGC()->workaroundClearInheritedFillProperties(); // HACK! KoShape *clipShape = parseGroup(e); m_context.popGraphicsContext(); if (!clipShape) return false; clipPath.setShapes({clipShape}); m_clipPaths.insert(id, clipPath); return true; } bool SvgParser::parseClipMask(const KoXmlElement &e) { QSharedPointer clipMask(new KoClipMask); const QString id = e.attribute("id"); if (id.isEmpty()) return false; clipMask->setCoordinates(KoFlake::coordinatesFromString(e.attribute("maskUnits"), KoFlake::ObjectBoundingBox)); clipMask->setContentCoordinates(KoFlake::coordinatesFromString(e.attribute("maskContentUnits"), KoFlake::UserSpaceOnUse)); QRectF maskRect; if (clipMask->coordinates() == KoFlake::ObjectBoundingBox) { maskRect.setRect( SvgUtil::fromPercentage(e.attribute("x", "-10%")), SvgUtil::fromPercentage(e.attribute("y", "-10%")), SvgUtil::fromPercentage(e.attribute("width", "120%")), SvgUtil::fromPercentage(e.attribute("height", "120%"))); } else { maskRect.setRect( parseUnitX(e.attribute("x", "-10%")), // yes, percents are insane in this case, parseUnitY(e.attribute("y", "-10%")), // but this is what SVG 1.1 tells us... parseUnitX(e.attribute("width", "120%")), parseUnitY(e.attribute("height", "120%"))); } clipMask->setMaskRect(maskRect); // ensure that the clip mask is loaded in local coordinates system m_context.pushGraphicsContext(e); m_context.currentGC()->matrix = QTransform(); m_context.currentGC()->workaroundClearInheritedFillProperties(); // HACK! KoShape *clipShape = parseGroup(e); m_context.popGraphicsContext(); if (!clipShape) return false; clipMask->setShapes({clipShape}); m_clipMasks.insert(id, clipMask); return true; } void SvgParser::uploadStyleToContext(const KoXmlElement &e) { SvgStyles styles = m_context.styleParser().collectStyles(e); m_context.styleParser().parseFont(styles); m_context.styleParser().parseStyle(styles); } void SvgParser::applyCurrentStyle(KoShape *shape, const QPointF &shapeToOriginalUserCoordinates) { if (!shape) return; applyCurrentBasicStyle(shape); if (KoPathShape *pathShape = dynamic_cast(shape)) { applyMarkers(pathShape); } applyFilter(shape); applyClipping(shape, shapeToOriginalUserCoordinates); applyMaskClipping(shape, shapeToOriginalUserCoordinates); } void SvgParser::applyCurrentBasicStyle(KoShape *shape) { if (!shape) return; SvgGraphicsContext *gc = m_context.currentGC(); KIS_ASSERT(gc); if (!dynamic_cast(shape)) { applyFillStyle(shape); applyStrokeStyle(shape); } if (!gc->display || !gc->visible) { /** * WARNING: here is a small inconsistency with the standard: * in the standard, 'display' is not inherited, but in * flake it is! * * NOTE: though the standard says: "A value of 'display:none' indicates * that the given element and ***its children*** shall not be * rendered directly". Therefore, using setVisible(false) is fully * legitimate here (DK 29.11.16). */ shape->setVisible(false); } shape->setTransparency(1.0 - gc->opacity); } void SvgParser::applyStyle(KoShape *obj, const KoXmlElement &e, const QPointF &shapeToOriginalUserCoordinates) { applyStyle(obj, m_context.styleParser().collectStyles(e), shapeToOriginalUserCoordinates); } void SvgParser::applyStyle(KoShape *obj, const SvgStyles &styles, const QPointF &shapeToOriginalUserCoordinates) { SvgGraphicsContext *gc = m_context.currentGC(); if (!gc) return; m_context.styleParser().parseStyle(styles); if (!obj) return; if (!dynamic_cast(obj)) { applyFillStyle(obj); applyStrokeStyle(obj); } if (KoPathShape *pathShape = dynamic_cast(obj)) { applyMarkers(pathShape); } applyFilter(obj); applyClipping(obj, shapeToOriginalUserCoordinates); applyMaskClipping(obj, shapeToOriginalUserCoordinates); if (!gc->display || !gc->visible) { obj->setVisible(false); } obj->setTransparency(1.0 - gc->opacity); } QGradient* prepareGradientForShape(const SvgGradientHelper *gradient, const KoShape *shape, const SvgGraphicsContext *gc, QTransform *transform) { QGradient *resultGradient = 0; KIS_ASSERT(transform); if (gradient->gradientUnits() == KoFlake::ObjectBoundingBox) { resultGradient = KoFlake::cloneGradient(gradient->gradient()); *transform = gradient->transform(); } else { if (gradient->gradient()->type() == QGradient::LinearGradient) { /** * Create a converted gradient that looks the same, but linked to the * bounding rect of the shape, so it would be transformed with the shape */ const QRectF boundingRect = shape->outline().boundingRect(); const QTransform relativeToShape(boundingRect.width(), 0, 0, boundingRect.height(), boundingRect.x(), boundingRect.y()); const QTransform relativeToUser = relativeToShape * shape->transformation() * gc->matrix.inverted(); const QTransform userToRelative = relativeToUser.inverted(); const QLinearGradient *o = static_cast(gradient->gradient()); QLinearGradient *g = new QLinearGradient(); g->setStart(userToRelative.map(o->start())); g->setFinalStop(userToRelative.map(o->finalStop())); g->setCoordinateMode(QGradient::ObjectBoundingMode); g->setStops(o->stops()); g->setSpread(o->spread()); resultGradient = g; *transform = relativeToUser * gradient->transform() * userToRelative; } else if (gradient->gradient()->type() == QGradient::RadialGradient) { // For radial and conical gradients such conversion is not possible resultGradient = KoFlake::cloneGradient(gradient->gradient()); *transform = gradient->transform() * gc->matrix * shape->transformation().inverted(); const QRectF outlineRect = shape->outlineRect(); if (outlineRect.isEmpty()) return resultGradient; /** * If shape outline rect is valid, convert the gradient into OBB mode by * doing some magic conversions: we compensate non-uniform size of the shape * by applying an additional pre-transform */ QRadialGradient *rgradient = static_cast(resultGradient); const qreal maxDimension = KisAlgebra2D::maxDimension(outlineRect); const QRectF uniformSize(outlineRect.topLeft(), QSizeF(maxDimension, maxDimension)); const QTransform uniformizeTransform = QTransform::fromTranslate(-outlineRect.x(), -outlineRect.y()) * QTransform::fromScale(maxDimension / shape->outlineRect().width(), maxDimension / shape->outlineRect().height()) * QTransform::fromTranslate(outlineRect.x(), outlineRect.y()); const QPointF centerLocal = transform->map(rgradient->center()); const QPointF focalLocal = transform->map(rgradient->focalPoint()); const QPointF centerOBB = KisAlgebra2D::absoluteToRelative(centerLocal, uniformSize); const QPointF focalOBB = KisAlgebra2D::absoluteToRelative(focalLocal, uniformSize); rgradient->setCenter(centerOBB); rgradient->setFocalPoint(focalOBB); const qreal centerRadiusOBB = KisAlgebra2D::absoluteToRelative(rgradient->centerRadius(), uniformSize); const qreal focalRadiusOBB = KisAlgebra2D::absoluteToRelative(rgradient->focalRadius(), uniformSize); rgradient->setCenterRadius(centerRadiusOBB); rgradient->setFocalRadius(focalRadiusOBB); rgradient->setCoordinateMode(QGradient::ObjectBoundingMode); // Warning: should it really be pre-multiplication? *transform = uniformizeTransform * gradient->transform(); } } return resultGradient; } void SvgParser::applyFillStyle(KoShape *shape) { SvgGraphicsContext *gc = m_context.currentGC(); if (! gc) return; if (gc->fillType == SvgGraphicsContext::None) { shape->setBackground(QSharedPointer(0)); } else if (gc->fillType == SvgGraphicsContext::Solid) { shape->setBackground(QSharedPointer(new KoColorBackground(gc->fillColor))); } else if (gc->fillType == SvgGraphicsContext::Complex) { // try to find referenced gradient SvgGradientHelper *gradient = findGradient(gc->fillId); if (gradient) { QTransform transform; QGradient *result = prepareGradientForShape(gradient, shape, gc, &transform); if (result) { QSharedPointer bg; bg = toQShared(new KoGradientBackground(result)); bg->setTransform(transform); shape->setBackground(bg); } } else { QSharedPointer pattern = findPattern(gc->fillId, shape); if (pattern) { shape->setBackground(pattern); } else { // no referenced fill found, use fallback color shape->setBackground(QSharedPointer(new KoColorBackground(gc->fillColor))); } } } KoPathShape *path = dynamic_cast(shape); if (path) path->setFillRule(gc->fillRule); } void applyDashes(const KoShapeStrokeSP srcStroke, KoShapeStrokeSP dstStroke) { const double lineWidth = srcStroke->lineWidth(); QVector dashes = srcStroke->lineDashes(); // apply line width to dashes and dash offset if (dashes.count() && lineWidth > 0.0) { const double dashOffset = srcStroke->dashOffset(); QVector dashes = srcStroke->lineDashes(); for (int i = 0; i < dashes.count(); ++i) { dashes[i] /= lineWidth; } dstStroke->setLineStyle(Qt::CustomDashLine, dashes); dstStroke->setDashOffset(dashOffset / lineWidth); } else { dstStroke->setLineStyle(Qt::SolidLine, QVector()); } } void SvgParser::applyStrokeStyle(KoShape *shape) { SvgGraphicsContext *gc = m_context.currentGC(); if (! gc) return; if (gc->strokeType == SvgGraphicsContext::None) { shape->setStroke(KoShapeStrokeModelSP()); } else if (gc->strokeType == SvgGraphicsContext::Solid) { KoShapeStrokeSP stroke(new KoShapeStroke(*gc->stroke)); applyDashes(gc->stroke, stroke); shape->setStroke(stroke); } else if (gc->strokeType == SvgGraphicsContext::Complex) { // try to find referenced gradient SvgGradientHelper *gradient = findGradient(gc->strokeId); if (gradient) { QTransform transform; QGradient *result = prepareGradientForShape(gradient, shape, gc, &transform); if (result) { QBrush brush = *result; delete result; brush.setTransform(transform); KoShapeStrokeSP stroke(new KoShapeStroke(*gc->stroke)); stroke->setLineBrush(brush); applyDashes(gc->stroke, stroke); shape->setStroke(stroke); } } else { // no referenced stroke found, use fallback color KoShapeStrokeSP stroke(new KoShapeStroke(*gc->stroke)); applyDashes(gc->stroke, stroke); shape->setStroke(stroke); } } } void SvgParser::applyFilter(KoShape *shape) { SvgGraphicsContext *gc = m_context.currentGC(); if (! gc) return; if (gc->filterId.isEmpty()) return; SvgFilterHelper *filter = findFilter(gc->filterId); if (! filter) return; KoXmlElement content = filter->content(); // parse filter region QRectF bound(shape->position(), shape->size()); // work on bounding box without viewbox transformation applied // so user space coordinates of bounding box and filter region match up bound = gc->viewboxTransform.inverted().mapRect(bound); QRectF filterRegion(filter->position(bound), filter->size(bound)); // convert filter region to boundingbox units QRectF objectFilterRegion; objectFilterRegion.setTopLeft(SvgUtil::userSpaceToObject(filterRegion.topLeft(), bound)); objectFilterRegion.setSize(SvgUtil::userSpaceToObject(filterRegion.size(), bound)); KoFilterEffectLoadingContext context(m_context.xmlBaseDir()); context.setShapeBoundingBox(bound); // enable units conversion context.enableFilterUnitsConversion(filter->filterUnits() == KoFlake::UserSpaceOnUse); context.enableFilterPrimitiveUnitsConversion(filter->primitiveUnits() == KoFlake::UserSpaceOnUse); KoFilterEffectRegistry *registry = KoFilterEffectRegistry::instance(); KoFilterEffectStack *filterStack = 0; QSet stdInputs; stdInputs << "SourceGraphic" << "SourceAlpha"; stdInputs << "BackgroundImage" << "BackgroundAlpha"; stdInputs << "FillPaint" << "StrokePaint"; QMap inputs; // create the filter effects and add them to the shape for (KoXmlNode n = content.firstChild(); !n.isNull(); n = n.nextSibling()) { KoXmlElement primitive = n.toElement(); KoFilterEffect *filterEffect = registry->createFilterEffectFromXml(primitive, context); if (!filterEffect) { debugFlake << "filter effect" << primitive.tagName() << "is not implemented yet"; continue; } const QString input = primitive.attribute("in"); if (!input.isEmpty()) { filterEffect->setInput(0, input); } const QString output = primitive.attribute("result"); if (!output.isEmpty()) { filterEffect->setOutput(output); } QRectF subRegion; // parse subregion if (filter->primitiveUnits() == KoFlake::UserSpaceOnUse) { const QString xa = primitive.attribute("x"); const QString ya = primitive.attribute("y"); const QString wa = primitive.attribute("width"); const QString ha = primitive.attribute("height"); if (xa.isEmpty() || ya.isEmpty() || wa.isEmpty() || ha.isEmpty()) { bool hasStdInput = false; bool isFirstEffect = filterStack == 0; // check if one of the inputs is a standard input Q_FOREACH (const QString &input, filterEffect->inputs()) { if ((isFirstEffect && input.isEmpty()) || stdInputs.contains(input)) { hasStdInput = true; break; } } if (hasStdInput || primitive.tagName() == "feImage") { // default to 0%, 0%, 100%, 100% subRegion.setTopLeft(QPointF(0, 0)); subRegion.setSize(QSizeF(1, 1)); } else { // defaults to bounding rect of all referenced nodes Q_FOREACH (const QString &input, filterEffect->inputs()) { if (!inputs.contains(input)) continue; KoFilterEffect *inputFilter = inputs[input]; if (inputFilter) subRegion |= inputFilter->filterRect(); } } } else { const qreal x = parseUnitX(xa); const qreal y = parseUnitY(ya); const qreal w = parseUnitX(wa); const qreal h = parseUnitY(ha); subRegion.setTopLeft(SvgUtil::userSpaceToObject(QPointF(x, y), bound)); subRegion.setSize(SvgUtil::userSpaceToObject(QSizeF(w, h), bound)); } } else { // x, y, width, height are in percentages of the object referencing the filter // so we just parse the percentages const qreal x = SvgUtil::fromPercentage(primitive.attribute("x", "0")); const qreal y = SvgUtil::fromPercentage(primitive.attribute("y", "0")); const qreal w = SvgUtil::fromPercentage(primitive.attribute("width", "1")); const qreal h = SvgUtil::fromPercentage(primitive.attribute("height", "1")); subRegion = QRectF(QPointF(x, y), QSizeF(w, h)); } filterEffect->setFilterRect(subRegion); if (!filterStack) filterStack = new KoFilterEffectStack(); filterStack->appendFilterEffect(filterEffect); inputs[filterEffect->output()] = filterEffect; } if (filterStack) { filterStack->setClipRect(objectFilterRegion); shape->setFilterEffectStack(filterStack); } } void SvgParser::applyMarkers(KoPathShape *shape) { SvgGraphicsContext *gc = m_context.currentGC(); if (!gc) return; if (!gc->markerStartId.isEmpty() && m_markers.contains(gc->markerStartId)) { shape->setMarker(m_markers[gc->markerStartId].data(), KoFlake::StartMarker); } if (!gc->markerMidId.isEmpty() && m_markers.contains(gc->markerMidId)) { shape->setMarker(m_markers[gc->markerMidId].data(), KoFlake::MidMarker); } if (!gc->markerEndId.isEmpty() && m_markers.contains(gc->markerEndId)) { shape->setMarker(m_markers[gc->markerEndId].data(), KoFlake::EndMarker); } shape->setAutoFillMarkers(gc->autoFillMarkers); } void SvgParser::applyClipping(KoShape *shape, const QPointF &shapeToOriginalUserCoordinates) { SvgGraphicsContext *gc = m_context.currentGC(); if (! gc) return; if (gc->clipPathId.isEmpty()) return; SvgClipPathHelper *clipPath = findClipPath(gc->clipPathId); if (!clipPath || clipPath->isEmpty()) return; QList shapes; Q_FOREACH (KoShape *item, clipPath->shapes()) { KoShape *clonedShape = item->cloneShape(); KIS_ASSERT_RECOVER(clonedShape) { continue; } shapes.append(clonedShape); } if (!shapeToOriginalUserCoordinates.isNull()) { const QTransform t = QTransform::fromTranslate(shapeToOriginalUserCoordinates.x(), shapeToOriginalUserCoordinates.y()); Q_FOREACH(KoShape *s, shapes) { s->applyAbsoluteTransformation(t); } } KoClipPath *clipPathObject = new KoClipPath(shapes, clipPath->clipPathUnits() == KoFlake::ObjectBoundingBox ? KoFlake::ObjectBoundingBox : KoFlake::UserSpaceOnUse); shape->setClipPath(clipPathObject); } void SvgParser::applyMaskClipping(KoShape *shape, const QPointF &shapeToOriginalUserCoordinates) { SvgGraphicsContext *gc = m_context.currentGC(); if (!gc) return; if (gc->clipMaskId.isEmpty()) return; QSharedPointer originalClipMask = m_clipMasks.value(gc->clipMaskId); if (!originalClipMask || originalClipMask->isEmpty()) return; KoClipMask *clipMask = originalClipMask->clone(); clipMask->setExtraShapeOffset(shapeToOriginalUserCoordinates); shape->setClipMask(clipMask); } KoShape* SvgParser::parseUse(const KoXmlElement &e, DeferredUseStore* deferredUseStore) { QString href = e.attribute("xlink:href"); if (href.isEmpty()) return 0; QString key = href.mid(1); const bool gotDef = m_context.hasDefinition(key); if (gotDef) { return resolveUse(e, key); } else if (deferredUseStore) { deferredUseStore->add(&e, key); return 0; } qDebug() << "WARNING: Did not find reference for svg 'use' element. Skipping. Id: " << key; return 0; } KoShape* SvgParser::resolveUse(const KoXmlElement &e, const QString& key) { KoShape *result = 0; SvgGraphicsContext *gc = m_context.pushGraphicsContext(e); // TODO: parse 'width' and 'height' as well gc->matrix.translate(parseUnitX(e.attribute("x", "0")), parseUnitY(e.attribute("y", "0"))); const KoXmlElement &referencedElement = m_context.definition(key); result = parseGroup(e, referencedElement); m_context.popGraphicsContext(); return result; } void SvgParser::addToGroup(QList shapes, KoShapeContainer *group) { m_shapes += shapes; if (!group || shapes.isEmpty()) return; // not normalized KoShapeGroupCommand cmd(group, shapes, false); cmd.redo(); } QList SvgParser::parseSvg(const KoXmlElement &e, QSizeF *fragmentSize) { // check if we are the root svg element const bool isRootSvg = m_context.isRootContext(); // parse 'transform' field if preset SvgGraphicsContext *gc = m_context.pushGraphicsContext(e); applyStyle(0, e, QPointF()); const QString w = e.attribute("width"); const QString h = e.attribute("height"); const qreal width = w.isEmpty() ? 666.0 : parseUnitX(w); const qreal height = h.isEmpty() ? 555.0 : parseUnitY(h); QSizeF svgFragmentSize(QSizeF(width, height)); if (fragmentSize) { *fragmentSize = svgFragmentSize; } gc->currentBoundingBox = QRectF(QPointF(0, 0), svgFragmentSize); if (!isRootSvg) { // x and y attribute has no meaning for outermost svg elements const qreal x = parseUnit(e.attribute("x", "0")); const qreal y = parseUnit(e.attribute("y", "0")); QTransform move = QTransform::fromTranslate(x, y); gc->matrix = move * gc->matrix; } applyViewBoxTransform(e); QList shapes; // First find the metadata for (KoXmlNode n = e.firstChild(); !n.isNull(); n = n.nextSibling()) { KoXmlElement b = n.toElement(); if (b.isNull()) continue; if (b.tagName() == "title") { m_documentTitle = b.text().trimmed(); } else if (b.tagName() == "desc") { m_documentDescription = b.text().trimmed(); } else if (b.tagName() == "metadata") { // TODO: parse the metadata } } // SVG 1.1: skip the rendering of the element if it has null viewBox; however an inverted viewbox is just peachy // and as mother makes them -- if mother is inkscape. if (gc->currentBoundingBox.normalized().isValid()) { shapes = parseContainer(e); } m_context.popGraphicsContext(); return shapes; } void SvgParser::applyViewBoxTransform(const KoXmlElement &element) { SvgGraphicsContext *gc = m_context.currentGC(); QRectF viewRect = gc->currentBoundingBox; QTransform viewTransform; if (SvgUtil::parseViewBox(gc, element, gc->currentBoundingBox, &viewRect, &viewTransform)) { gc->matrix = viewTransform * gc->matrix; gc->currentBoundingBox = viewRect; } } QList > SvgParser::knownMarkers() const { return m_markers.values(); } QString SvgParser::documentTitle() const { return m_documentTitle; } QString SvgParser::documentDescription() const { return m_documentDescription; } void SvgParser::setFileFetcher(SvgParser::FileFetcherFunc func) { m_context.setFileFetcher(func); } inline QPointF extraShapeOffset(const KoShape *shape, const QTransform coordinateSystemOnLoading) { const QTransform shapeToOriginalUserCoordinates = shape->absoluteTransformation(0).inverted() * coordinateSystemOnLoading; KIS_SAFE_ASSERT_RECOVER_NOOP(shapeToOriginalUserCoordinates.type() <= QTransform::TxTranslate); return QPointF(shapeToOriginalUserCoordinates.dx(), shapeToOriginalUserCoordinates.dy()); } KoShape* SvgParser::parseGroup(const KoXmlElement &b, const KoXmlElement &overrideChildrenFrom) { m_context.pushGraphicsContext(b); KoShapeGroup *group = new KoShapeGroup(); group->setZIndex(m_context.nextZIndex()); // groups should also have their own coordinate system! group->applyAbsoluteTransformation(m_context.currentGC()->matrix); const QPointF extraOffset = extraShapeOffset(group, m_context.currentGC()->matrix); uploadStyleToContext(b); QList childShapes; if (!overrideChildrenFrom.isNull()) { // we upload styles from both: and uploadStyleToContext(overrideChildrenFrom); childShapes = parseSingleElement(overrideChildrenFrom, 0); } else { childShapes = parseContainer(b); } // handle id applyId(b.attribute("id"), group); addToGroup(childShapes, group); applyCurrentStyle(group, extraOffset); // apply style to this group after size is set m_context.popGraphicsContext(); return group; } KoShape* SvgParser::parseTextNode(const KoXmlText &e) { QScopedPointer textChunk(new KoSvgTextChunkShape()); textChunk->setZIndex(m_context.nextZIndex()); if (!textChunk->loadSvgTextNode(e, m_context)) { return 0; } textChunk->applyAbsoluteTransformation(m_context.currentGC()->matrix); applyCurrentBasicStyle(textChunk.data()); // apply style to this group after size is set return textChunk.take(); } KoXmlText getTheOnlyTextChild(const KoXmlElement &e) { KoXmlNode firstChild = e.firstChild(); return !firstChild.isNull() && firstChild == e.lastChild() && firstChild.isText() ? firstChild.toText() : KoXmlText(); } KoShape *SvgParser::parseTextElement(const KoXmlElement &e, KoSvgTextShape *mergeIntoShape) { KIS_SAFE_ASSERT_RECOVER_RETURN_VALUE(e.tagName() == "text" || e.tagName() == "tspan", 0); KIS_SAFE_ASSERT_RECOVER_RETURN_VALUE(m_isInsideTextSubtree || e.tagName() == "text", 0); KIS_SAFE_ASSERT_RECOVER_RETURN_VALUE(e.tagName() == "text" || !mergeIntoShape, 0); KoSvgTextShape *rootTextShape = 0; if (e.tagName() == "text") { // XXX: Shapes need to be created by their factories rootTextShape = mergeIntoShape ? mergeIntoShape : new KoSvgTextShape(); } if (rootTextShape) { m_isInsideTextSubtree = true; } m_context.pushGraphicsContext(e); uploadStyleToContext(e); KoSvgTextChunkShape *textChunk = rootTextShape ? rootTextShape : new KoSvgTextChunkShape(); textChunk->setZIndex(m_context.nextZIndex()); textChunk->loadSvg(e, m_context); // 1) apply transformation only in case we are not overriding the shape! // 2) the transformation should be applied *before* the shape is added to the group! if (!mergeIntoShape) { // groups should also have their own coordinate system! textChunk->applyAbsoluteTransformation(m_context.currentGC()->matrix); const QPointF extraOffset = extraShapeOffset(textChunk, m_context.currentGC()->matrix); // handle id applyId(e.attribute("id"), textChunk); applyCurrentStyle(textChunk, extraOffset); // apply style to this group after size is set } else { m_context.currentGC()->matrix = mergeIntoShape->absoluteTransformation(0); applyCurrentBasicStyle(textChunk); } KoXmlText onlyTextChild = getTheOnlyTextChild(e); if (!onlyTextChild.isNull()) { textChunk->loadSvgTextNode(onlyTextChild, m_context); } else { QList childShapes = parseContainer(e, true); addToGroup(childShapes, textChunk); } m_context.popGraphicsContext(); textChunk->normalizeCharTransformations(); if (rootTextShape) { textChunk->simplifyFillStrokeInheritance(); m_isInsideTextSubtree = false; rootTextShape->relayout(); } return textChunk; } QList SvgParser::parseContainer(const KoXmlElement &e, bool parseTextNodes) { QList shapes; // are we parsing a switch container bool isSwitch = e.tagName() == "switch"; DeferredUseStore deferredUseStore(this); for (KoXmlNode n = e.firstChild(); !n.isNull(); n = n.nextSibling()) { KoXmlElement b = n.toElement(); if (b.isNull()) { if (parseTextNodes && n.isText()) { KoShape *shape = parseTextNode(n.toText()); if (shape) { shapes += shape; } } continue; } if (isSwitch) { // if we are parsing a switch check the requiredFeatures, requiredExtensions // and systemLanguage attributes // TODO: evaluate feature list if (b.hasAttribute("requiredFeatures")) { continue; } if (b.hasAttribute("requiredExtensions")) { // we do not support any extensions continue; } if (b.hasAttribute("systemLanguage")) { // not implemented yet } } QList currentShapes = parseSingleElement(b, &deferredUseStore); shapes.append(currentShapes); // if we are parsing a switch, stop after the first supported element if (isSwitch && !currentShapes.isEmpty()) break; } return shapes; } void SvgParser::parseDefsElement(const KoXmlElement &e) { KIS_SAFE_ASSERT_RECOVER_RETURN(e.tagName() == "defs"); parseSingleElement(e); } QList SvgParser::parseSingleElement(const KoXmlElement &b, DeferredUseStore* deferredUseStore) { QList shapes; // save definition for later instantiation with 'use' m_context.addDefinition(b); if (deferredUseStore) { deferredUseStore->checkPendingUse(b, shapes); } if (b.tagName() == "svg") { shapes += parseSvg(b); } else if (b.tagName() == "g" || b.tagName() == "a") { // treat svg link as group so we don't miss its child elements shapes += parseGroup(b); } else if (b.tagName() == "switch") { m_context.pushGraphicsContext(b); shapes += parseContainer(b); m_context.popGraphicsContext(); } else if (b.tagName() == "defs") { if (KoXml::childNodesCount(b) > 0) { /** * WARNING: 'defs' are basically 'display:none' style, therefore they should not play * any role in shapes outline calculation. But setVisible(false) shapes do! * Should be fixed in the future! */ KoShape *defsShape = parseGroup(b); defsShape->setVisible(false); m_defsShapes << defsShape; // TODO: where to delete the shape!? } } else if (b.tagName() == "linearGradient" || b.tagName() == "radialGradient") { } else if (b.tagName() == "pattern") { } else if (b.tagName() == "filter") { parseFilter(b); } else if (b.tagName() == "clipPath") { parseClipPath(b); } else if (b.tagName() == "mask") { parseClipMask(b); } else if (b.tagName() == "marker") { parseMarker(b); } else if (b.tagName() == "symbol") { parseSymbol(b); } else if (b.tagName() == "style") { m_context.addStyleSheet(b); } else if (b.tagName() == "text" || b.tagName() == "tspan") { shapes += parseTextElement(b); } else if (b.tagName() == "rect" || b.tagName() == "ellipse" || b.tagName() == "circle" || b.tagName() == "line" || b.tagName() == "polyline" || b.tagName() == "polygon" || b.tagName() == "path" || b.tagName() == "image") { KoShape *shape = createObjectDirect(b); if (shape) shapes.append(shape); } else if (b.tagName() == "use") { KoShape* s = parseUse(b, deferredUseStore); if (s) { shapes += s; } } else if (b.tagName() == "color-profile") { m_context.parseProfile(b); } else { // this is an unknown element, so try to load it anyway // there might be a shape that handles that element KoShape *shape = createObject(b); if (shape) { shapes.append(shape); } } return shapes; } // Creating functions // --------------------------------------------------------------------------------------- KoShape * SvgParser::createPath(const KoXmlElement &element) { KoShape *obj = 0; if (element.tagName() == "line") { KoPathShape *path = static_cast(createShape(KoPathShapeId)); if (path) { double x1 = element.attribute("x1").isEmpty() ? 0.0 : parseUnitX(element.attribute("x1")); double y1 = element.attribute("y1").isEmpty() ? 0.0 : parseUnitY(element.attribute("y1")); double x2 = element.attribute("x2").isEmpty() ? 0.0 : parseUnitX(element.attribute("x2")); double y2 = element.attribute("y2").isEmpty() ? 0.0 : parseUnitY(element.attribute("y2")); path->clear(); path->moveTo(QPointF(x1, y1)); path->lineTo(QPointF(x2, y2)); path->normalize(); obj = path; } } else if (element.tagName() == "polyline" || element.tagName() == "polygon") { KoPathShape *path = static_cast(createShape(KoPathShapeId)); if (path) { path->clear(); bool bFirst = true; QStringList pointList = SvgUtil::simplifyList(element.attribute("points")); for (QStringList::Iterator it = pointList.begin(); it != pointList.end(); ++it) { QPointF point; point.setX(SvgUtil::fromUserSpace(KisDomUtils::toDouble(*it))); ++it; if (it == pointList.end()) break; point.setY(SvgUtil::fromUserSpace(KisDomUtils::toDouble(*it))); if (bFirst) { path->moveTo(point); bFirst = false; } else path->lineTo(point); } if (element.tagName() == "polygon") path->close(); path->setPosition(path->normalize()); obj = path; } } else if (element.tagName() == "path") { KoPathShape *path = static_cast(createShape(KoPathShapeId)); if (path) { path->clear(); KoPathShapeLoader loader(path); loader.parseSvg(element.attribute("d"), true); path->setPosition(path->normalize()); QPointF newPosition = QPointF(SvgUtil::fromUserSpace(path->position().x()), SvgUtil::fromUserSpace(path->position().y())); QSizeF newSize = QSizeF(SvgUtil::fromUserSpace(path->size().width()), SvgUtil::fromUserSpace(path->size().height())); path->setSize(newSize); path->setPosition(newPosition); obj = path; } } return obj; } KoShape * SvgParser::createObjectDirect(const KoXmlElement &b) { m_context.pushGraphicsContext(b); uploadStyleToContext(b); KoShape *obj = createShapeFromElement(b, m_context); if (obj) { obj->applyAbsoluteTransformation(m_context.currentGC()->matrix); const QPointF extraOffset = extraShapeOffset(obj, m_context.currentGC()->matrix); applyCurrentStyle(obj, extraOffset); // handle id applyId(b.attribute("id"), obj); obj->setZIndex(m_context.nextZIndex()); } m_context.popGraphicsContext(); return obj; } KoShape * SvgParser::createObject(const KoXmlElement &b, const SvgStyles &style) { m_context.pushGraphicsContext(b); KoShape *obj = createShapeFromElement(b, m_context); if (obj) { obj->applyAbsoluteTransformation(m_context.currentGC()->matrix); const QPointF extraOffset = extraShapeOffset(obj, m_context.currentGC()->matrix); SvgStyles objStyle = style.isEmpty() ? m_context.styleParser().collectStyles(b) : style; m_context.styleParser().parseFont(objStyle); applyStyle(obj, objStyle, extraOffset); // handle id applyId(b.attribute("id"), obj); obj->setZIndex(m_context.nextZIndex()); } m_context.popGraphicsContext(); return obj; } KoShape * SvgParser::createShapeFromElement(const KoXmlElement &element, SvgLoadingContext &context) { KoShape *object = 0; const QString tagName = SvgUtil::mapExtendedShapeTag(element.tagName(), element); QList factories = KoShapeRegistry::instance()->factoriesForElement(KoXmlNS::svg, tagName); foreach (KoShapeFactoryBase *f, factories) { KoShape *shape = f->createDefaultShape(m_documentResourceManager); if (!shape) continue; SvgShape *svgShape = dynamic_cast(shape); if (!svgShape) { delete shape; continue; } // reset transformation that might come from the default shape shape->setTransformation(QTransform()); // reset border KoShapeStrokeModelSP oldStroke = shape->stroke(); shape->setStroke(KoShapeStrokeModelSP()); // reset fill shape->setBackground(QSharedPointer(0)); if (!svgShape->loadSvg(element, context)) { delete shape; continue; } object = shape; break; } if (!object) { object = createPath(element); } return object; } KoShape *SvgParser::createShape(const QString &shapeID) { KoShapeFactoryBase *factory = KoShapeRegistry::instance()->get(shapeID); if (!factory) { debugFlake << "Could not find factory for shape id" << shapeID; return 0; } KoShape *shape = factory->createDefaultShape(m_documentResourceManager); if (!shape) { debugFlake << "Could not create Default shape for shape id" << shapeID; return 0; } if (shape->shapeId().isEmpty()) { shape->setShapeId(factory->id()); } // reset transformation that might come from the default shape shape->setTransformation(QTransform()); // reset border // ??? KoShapeStrokeModelSP oldStroke = shape->stroke(); shape->setStroke(KoShapeStrokeModelSP()); // reset fill shape->setBackground(QSharedPointer(0)); return shape; } void SvgParser::applyId(const QString &id, KoShape *shape) { if (id.isEmpty()) return; shape->setName(id); m_context.registerShape(id, shape); }