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diff --git a/Build/source/texk/dvisvgm/dvisvgm-1.2.1/src/SVGTree.cpp b/Build/source/texk/dvisvgm/dvisvgm-1.2.1/src/SVGTree.cpp
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+++ b/Build/source/texk/dvisvgm/dvisvgm-1.2.1/src/SVGTree.cpp
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+/*************************************************************************
+** SVGTree.cpp **
+** **
+** This file is part of dvisvgm -- the DVI to SVG converter **
+** Copyright (C) 2005-2013 Martin Gieseking <martin.gieseking@uos.de> **
+** **
+** 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 3 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, see <http://www.gnu.org/licenses/>. **
+*************************************************************************/
+
+#include <sstream>
+#include <string>
+#include "BoundingBox.h"
+#include "DVIToSVG.h"
+#include "Font.h"
+#include "FontManager.h"
+#include "SVGTree.h"
+#include "XMLDocument.h"
+#include "XMLDocTypeNode.h"
+#include "XMLNode.h"
+#include "XMLString.h"
+
+using namespace std;
+
+
+// static class variables
+bool SVGTree::CREATE_STYLE=true;
+bool SVGTree::USE_FONTS=true;
+bool SVGTree::CREATE_USE_ELEMENTS=false;
+
+
+SVGTree::SVGTree () : _font(0), _color(Color::BLACK), _matrix(1) {
+ _xchanged = _ychanged = false;
+ _fontnum = 0;
+ reset();
+}
+
+
+/** Clears the SVG tree and initializes the root element. */
+void SVGTree::reset () {
+ _doc.clear();
+ _root = new XMLElementNode("svg");
+ _root->addAttribute("version", "1.1");
+ _root->addAttribute("xmlns", "http://www.w3.org/2000/svg");
+ _root->addAttribute("xmlns:xlink", "http://www.w3.org/1999/xlink");
+ _doc.setRootNode(_root);
+ _doc.append(new XMLDocTypeNode("svg", "PUBLIC",
+ "\"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\""));
+ _page = _text = _span = _defs = 0;
+}
+
+
+/** Sets the bounding box of the document.
+ * @param[in] bbox bounding box in TeX point units */
+void SVGTree::setBBox (const BoundingBox &bbox) {
+ double bp = 72.0/72.27; // pt -> bp
+ ScalingMatrix scale(bp, bp);
+ BoundingBox scaled_box = bbox;
+ scaled_box.transform(scale);
+ _root->addAttribute("width", XMLString(scaled_box.width())+"pt");
+ _root->addAttribute("height", XMLString(scaled_box.height())+"pt");
+ _root->addAttribute("viewBox", scaled_box.toSVGViewBox());
+}
+
+
+/** Starts a new page.
+ * @param[in] pageno number of new page */
+void SVGTree::newPage (int pageno) {
+ _page = new XMLElementNode("g");
+ if (pageno >= 0)
+ _page->addAttribute("id", string("page")+XMLString(pageno));
+ _root->append(_page);
+ _text = _span = 0;
+}
+
+
+void SVGTree::appendToDefs (XMLNode *node) {
+ if (!_defs) {
+ _defs = new XMLElementNode("defs");
+ _root->prepend(_defs);
+ }
+ _defs->append(node);
+}
+
+
+/** Appends a single charater to the current text node. If necessary, and depending on output mode
+ * and further output states, new XML elements (text, tspan, g, ...) are created.
+ * @param[in] c character to be added
+ * @param[in] x x coordinate
+ * @param[in] y y coordinate
+ * @param[in] font font to be used */
+void SVGTree::appendChar (int c, double x, double y, const Font &font) {
+ XMLElementNode *node=_span;
+ if (USE_FONTS) {
+ // changes of fonts and transformations require a new text element
+ if (!_text || _font.changed() || _matrix.changed()) {
+ newTextNode(x, y);
+ node = _text;
+ _color.changed(true);
+ }
+ if (_xchanged || _ychanged || (_color.changed() && _color.get() != Color::BLACK)) {
+ // if drawing position was explicitly changed, create a new tspan element
+ _span = new XMLElementNode("tspan");
+ if (_xchanged) {
+ _span->addAttribute("x", x);
+ _xchanged = false;
+ }
+ if (_ychanged) {
+ _span->addAttribute("y", y);
+ _ychanged = false;
+ }
+ if (_color.get() != Color::BLACK) {
+ _span->addAttribute("fill", _color.get().rgbString());
+ _color.changed(false);
+ }
+ _text->append(_span);
+ node = _span;
+ }
+ if (!node) {
+ if (!_text)
+ newTextNode(x, y);
+ node = _text;
+ }
+ node->append(XMLString(font.unicode(c), false));
+ }
+ else {
+ if (_color.changed() || _matrix.changed()) {
+ bool set_color = (_color.changed() && _color.get() != Color::BLACK);
+ bool set_matrix = (_matrix.changed() && !_matrix.get().isIdentity());
+ if (set_color || set_matrix) {
+ _span = new XMLElementNode("g");
+ if (_color.get() != Color::BLACK)
+ _span->addAttribute("fill", _color.get().rgbString());
+ if (!_matrix.get().isIdentity())
+ _span->addAttribute("transform", _matrix.get().getSVG());
+ _page->append(_span);
+ node = _span;
+ _color.changed(false);
+ _matrix.changed(false);
+ }
+ else if (_color.get() == Color::BLACK && _matrix.get().isIdentity())
+ node = _span = 0;
+ }
+
+ if (!node)
+ node = _page;
+ if (CREATE_USE_ELEMENTS) {
+ ostringstream oss;
+ oss << "#g" << FontManager::instance().fontID(_font) << '-' << c;
+ XMLElementNode *use = new XMLElementNode("use");
+ use->addAttribute("x", XMLString(x));
+ use->addAttribute("y", XMLString(y));
+ use->addAttribute("xlink:href", oss.str());
+ node->append(use);
+ }
+ else {
+ Glyph glyph;
+ const PhysicalFont *font = dynamic_cast<const PhysicalFont*>(_font.get());
+ if (font && font->getGlyph(c, glyph)) {
+ double sx = font->scaledSize()/font->unitsPerEm();
+ double sy = -sx;
+ ostringstream oss;
+ glyph.writeSVG(oss, sx, sy, x, y);
+ XMLElementNode *glyph_node = new XMLElementNode("path");
+ glyph_node->addAttribute("d", oss.str());
+ node->append(glyph_node);
+ }
+ }
+ }
+}
+
+
+/** Creates a new text element. This is a helper function used by appendChar().
+ * @param[in] x current x coordinate
+ * @param[in] y current y coordinate */
+void SVGTree::newTextNode (double x, double y) {
+ _text = new XMLElementNode("text");
+ _span = 0; // no tspan in text element yet
+ if (USE_FONTS) {
+ const Font *font = _font.get();
+ if (CREATE_STYLE || !font)
+ _text->addAttribute("class", string("f")+XMLString(_fontnum));
+ else {
+ _text->addAttribute("font-family", font->name());
+ _text->addAttribute("font-size", font->scaledSize());
+ }
+ }
+ _text->addAttribute("x", x);
+ _text->addAttribute("y", y);
+ if (!_matrix.get().isIdentity())
+ _text->addAttribute("transform", _matrix.get().getSVG());
+ _page->append(_text);
+ _font.changed(false);
+ _matrix.changed(false);
+ _xchanged = false;
+ _ychanged = false;
+}
+
+
+void SVGTree::setFont (int num, const Font *font) {
+ _font.set(font);
+ _fontnum = num;
+}
+
+
+void SVGTree::transformPage (const Matrix *usermatrix) {
+ double bp = 72.0/72.27; // pt -> bp
+ ScalingMatrix matrix(bp, bp);
+ if (usermatrix)
+ matrix.rmultiply(*usermatrix);
+ if (!matrix.isIdentity())
+ _page->addAttribute("transform", matrix.getSVG());
+}
+
+
+/** Creates an SVG element for a single glyph.
+ * @param[in] c character number
+ * @param[in] font font to extract the glyph from
+ * @return pointer to element node if glyph exists, 0 otherwise */
+static XMLElementNode* createGlyphNode (int c, const PhysicalFont &font, GFGlyphTracer::Callback *cb) {
+ Glyph glyph;
+ if (!font.getGlyph(c, glyph, cb) || (!SVGTree::USE_FONTS && !SVGTree::CREATE_USE_ELEMENTS))
+ return 0;
+
+ double sx=1.0, sy=1.0;
+ double upem = font.unitsPerEm();
+ XMLElementNode *glyph_node=0;
+ if (SVGTree::USE_FONTS) {
+ glyph_node = new XMLElementNode("glyph");
+ glyph_node->addAttribute("unicode", XMLString(font.unicode(c), false));
+ glyph_node->addAttribute("horiz-adv-x", XMLString(font.hAdvance(c)));
+ string name = font.glyphName(c);
+ if (!name.empty())
+ glyph_node->addAttribute("glyph-name", name);
+ }
+ else {
+ ostringstream oss;
+ oss << 'g' << FontManager::instance().fontID(&font) << '-' << c;
+ glyph_node = new XMLElementNode("path");
+ glyph_node->addAttribute("id", oss.str());
+ sx = font.scaledSize()/upem;
+ sy = -sx;
+ }
+ ostringstream oss;
+ glyph.writeSVG(oss, sx, sy);
+ glyph_node->addAttribute("d", oss.str());
+ return glyph_node;
+}
+
+
+void SVGTree::appendFontStyles (const set<const Font*> &fonts) {
+ if (CREATE_STYLE && USE_FONTS && !fonts.empty() && _defs) {
+ XMLElementNode *styleNode = new XMLElementNode("style");
+ styleNode->addAttribute("type", "text/css");
+ _root->insertAfter(styleNode, _defs);
+ typedef map<int, const Font*> SortMap;
+ SortMap sortmap;
+ FORALL(fonts, set<const Font*>::const_iterator, it)
+ if (!dynamic_cast<const VirtualFont*>(*it)) // skip virtual fonts
+ sortmap[FontManager::instance().fontID(*it)] = *it;
+ ostringstream style;
+ // add font style definitions in ascending order
+ FORALL(sortmap, SortMap::const_iterator, it) {
+ style << "text.f" << it->first << ' '
+ << "{font-family:" << it->second->name()
+ << ";font-size:" << it->second->scaledSize() << "}\n";
+ }
+ XMLCDataNode *cdata = new XMLCDataNode(style.str());
+ styleNode->append(cdata);
+ }
+}
+
+
+/** Appends glyph definitions of a given font to the defs section of the SVG tree.
+ * @param[in] font font to be appended
+ * @param[in] chars codes of the characters whose glyph outlines should be appended */
+void SVGTree::append (const PhysicalFont &font, const set<int> &chars, GFGlyphTracer::Callback *cb) {
+ if (chars.empty())
+ return;
+
+ if (USE_FONTS) {
+ XMLElementNode *fontNode = new XMLElementNode("font");
+ string fontname = font.name();
+ fontNode->addAttribute("id", fontname);
+ fontNode->addAttribute("horiz-adv-x", XMLString(font.hAdvance()));
+ appendToDefs(fontNode);
+
+ XMLElementNode *faceNode = new XMLElementNode("font-face");
+ faceNode->addAttribute("font-family", fontname);
+ faceNode->addAttribute("units-per-em", XMLString(font.unitsPerEm()));
+ if (font.type() != PhysicalFont::MF) {
+ faceNode->addAttribute("ascent", XMLString(font.ascent()));
+ faceNode->addAttribute("descent", XMLString(font.descent()));
+ }
+ fontNode->append(faceNode);
+
+ // add required missing-glyph element
+ XMLElementNode *missing = new XMLElementNode("missing-glyph");
+ missing->addAttribute("d", "");
+ fontNode->append(missing);
+ FORALL(chars, set<int>::const_iterator, i)
+ fontNode->append(createGlyphNode(*i, font, cb));
+ }
+ else if (CREATE_USE_ELEMENTS && &font != font.uniqueFont()) {
+ // If the same character is used in various sizes we don't want to embed the complete (lengthy) path
+ // description multiple times because they would only differ by a scale factor. Thus it's better to
+ // reference the already embedded path together with a transformation attribute and let the SVG renderer
+ // scale the glyph properly. This is only necessary if we don't want to use font but path elements.
+ FORALL(chars, set<int>::const_iterator, it) {
+ ostringstream oss;
+ XMLElementNode *use = new XMLElementNode("use");
+ oss << 'g' << FontManager::instance().fontID(&font) << '-' << *it;
+ use->addAttribute("id", oss.str());
+ oss.str("");
+ oss << "#g" << FontManager::instance().fontID(font.uniqueFont()) << '-' << *it;
+ use->addAttribute("xlink:href", oss.str());
+ double scale = font.scaledSize()/font.uniqueFont()->scaledSize();
+ if (scale != 1.0) {
+ oss.str("");
+ oss << "scale(" << scale << ')';
+ use->addAttribute("transform", oss.str());
+ }
+ appendToDefs(use);
+ }
+ }
+ else {
+ FORALL(chars, set<int>::const_iterator, i)
+ appendToDefs(createGlyphNode(*i, font, cb));
+ }
+}
+
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