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Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-1.8/src/HtmlSpecialHandler.h')
-rw-r--r-- | Build/source/texk/dvisvgm/dvisvgm-1.8/src/HtmlSpecialHandler.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-1.8/src/HtmlSpecialHandler.h b/Build/source/texk/dvisvgm/dvisvgm-1.8/src/HtmlSpecialHandler.h new file mode 100644 index 00000000000..221c325185f --- /dev/null +++ b/Build/source/texk/dvisvgm/dvisvgm-1.8/src/HtmlSpecialHandler.h @@ -0,0 +1,79 @@ +/************************************************************************* +** HtmlSpecialHandler.h ** +** ** +** This file is part of dvisvgm -- the DVI to SVG converter ** +** Copyright (C) 2005-2014 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/>. ** +*************************************************************************/ + +#ifndef DVISVGM_HTMLSPECIALHANDLER_H +#define DVISVGM_HTMLSPECIALHANDLER_H + +#include <map> +#include <string> +#include "Color.h" +#include "SpecialHandler.h" + +struct SpecialActions; + +class HtmlSpecialHandler : public SpecialHandler, public DVIEndPageListener, public DVIPositionListener +{ + struct NamedAnchor { + NamedAnchor () : pageno(0), id(0), pos(0), referenced(false) {} + NamedAnchor (unsigned pn, int i, double p, bool r=false) : pageno(pn), id(i), pos(p), referenced(r) {} + unsigned pageno; ///< page number where the anchor is located + int id; ///< unique numerical ID (< 0 if anchor is undefined yet) + double pos; ///< vertical position of named anchor (in PS point units) + bool referenced; ///< true if a reference to this anchor exists + }; + + enum AnchorType {AT_NONE, AT_HREF, AT_NAME}; + typedef std::map<std::string, NamedAnchor> NamedAnchors; + + public: + HtmlSpecialHandler () : _actions(0), _anchorType(AT_NONE), _depthThreshold(0) {} + void preprocess(const char *prefix, std::istream &is, SpecialActions *actions); + bool process (const char *prefix, std::istream &is, SpecialActions *actions); + const char* name () const {return "html";} + const char* info () const {return "hyperref specials";} + const char** prefixes () const; + + static bool setLinkMarker (const std::string &marker); + + protected: + void preprocessHrefAnchor (const std::string &uri); + void preprocessNameAnchor (const std::string &name); + void processHrefAnchor (std::string uri); + void processNameAnchor (const std::string &name); + void dviEndPage (unsigned pageno); + void dviMovedTo (double x, double y); + void closeAnchor (); + void markLinkedBox (); + + enum MarkerType {MT_NONE, MT_LINE, MT_BOX, MT_BGCOLOR}; + static MarkerType MARKER_TYPE; ///< selects how to mark linked areas + static Color LINK_BGCOLOR; ///< background color if linkmark type == LT_BGCOLOR + static Color LINK_LINECOLOR; ///< line color if linkmark type is LM_LINE or LM_BOX + static bool USE_LINECOLOR; ///< if true, LINK_LINECOLOR is applied + + private: + SpecialActions *_actions; + AnchorType _anchorType; ///< type of active anchor + int _depthThreshold; ///< break anchor box if the DVI stack depth underruns this threshold + std::string _base; ///< base URL that is prepended to all relative targets + NamedAnchors _namedAnchors; ///< information about all named anchors processed +}; + +#endif |