VSDXParser.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* libvisio
00003  * Version: MPL 1.1 / GPLv2+ / LGPLv2+
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License or as specified alternatively below. You may obtain a copy of
00008  * the License at http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * Major Contributor(s):
00016  * Copyright (C) 2011 Fridrich Strba <fridrich.strba@bluewin.ch>
00017  * Copyright (C) 2011 Eilidh McAdam <tibbylickle@gmail.com>
00018  *
00019  *
00020  * All Rights Reserved.
00021  *
00022  * For minor contributions see the git repository.
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either the GNU General Public License Version 2 or later (the "GPLv2+"), or
00026  * the GNU Lesser General Public License Version 2 or later (the "LGPLv2+"),
00027  * in which case the provisions of the GPLv2+ or the LGPLv2+ are applicable
00028  * instead of those above.
00029  */
00030 
00031 #ifndef __VSDXPARSER_H__
00032 #define __VSDXPARSER_H__
00033 
00034 #include <stdio.h>
00035 #include <iostream>
00036 #include <vector>
00037 #include <map>
00038 #include <libwpd/libwpd.h>
00039 #include <libwpd-stream/libwpd-stream.h>
00040 #include <libwpg/libwpg.h>
00041 #include "VSDXTypes.h"
00042 #include "VSDXGeometryList.h"
00043 #include "VSDXFieldList.h"
00044 #include "VSDXCharacterList.h"
00045 #include "VSDXParagraphList.h"
00046 #include "VSDXShapeList.h"
00047 #include "VSDXStencils.h"
00048 
00049 namespace libvisio
00050 {
00051 
00052 class VSDXCollector;
00053 
00054 class VSDXParser
00055 {
00056 public:
00057   explicit VSDXParser(WPXInputStream *input, libwpg::WPGPaintInterface *painter);
00058   virtual ~VSDXParser();
00059   bool parseMain();
00060 
00061 protected:
00062   // reader functions
00063   void readEllipticalArcTo(WPXInputStream *input);
00064   void readForeignData(WPXInputStream *input);
00065   void readEllipse(WPXInputStream *input);
00066   void readLine(WPXInputStream *input);
00067   virtual void readFillAndShadow(WPXInputStream *input) = 0;
00068   void readGeomList(WPXInputStream *input);
00069   void readGeometry(WPXInputStream *input);
00070   void readMoveTo(WPXInputStream *input);
00071   void readLineTo(WPXInputStream *input);
00072   void readArcTo(WPXInputStream *input);
00073   void readNURBSTo(WPXInputStream *input);
00074   void readPolylineTo(WPXInputStream *input);
00075   void readInfiniteLine(WPXInputStream *input);
00076   void readShapeData(WPXInputStream *input);
00077   void readXFormData(WPXInputStream *input);
00078   void readTxtXForm(WPXInputStream *input);
00079   void readShapeId(WPXInputStream *input);
00080   void readShapeList(WPXInputStream *input);
00081   void readForeignDataType(WPXInputStream *input);
00082   void readPageProps(WPXInputStream *input);
00083   void readShape(WPXInputStream *input);
00084   void readColours(WPXInputStream *input);
00085   void readFont(WPXInputStream *input, unsigned id);
00086   void readFontIX(WPXInputStream *input);
00087   void readCharList(WPXInputStream *input);
00088   void readParaList(WPXInputStream *input);
00089   void readPage(WPXInputStream *input);
00090   virtual void readText(WPXInputStream *input) = 0;
00091   virtual void readCharIX(WPXInputStream *input) = 0;
00092   virtual void readParaIX(WPXInputStream *input) = 0;
00093   void readTextBlock(WPXInputStream *input);
00094 
00095   void readNameList(WPXInputStream *input);
00096   virtual void readName(WPXInputStream *input) = 0;
00097 
00098   void readFieldList(WPXInputStream *input);
00099   virtual void readTextField(WPXInputStream *input) = 0;
00100 
00101   void readStyleSheet(WPXInputStream *input);
00102 
00103   void readSplineStart(WPXInputStream *input);
00104   void readSplineKnot(WPXInputStream *input);
00105 
00106   void readStencilShape(WPXInputStream *input);
00107 
00108   void readOLEList(WPXInputStream *input);
00109   void readOLEData(WPXInputStream *input);
00110 
00111   // parser of one pass
00112   bool parseDocument(WPXInputStream *input);
00113 
00114   // Stream handlers
00115   void handlePages(WPXInputStream *input, unsigned shift);
00116   void handlePage(WPXInputStream *input);
00117   void handleStyles(WPXInputStream *input);
00118   void handleStencils(WPXInputStream *input, unsigned shift);
00119   void handleStencilPage(WPXInputStream *input, unsigned shift);
00120   void handleStencilForeign(WPXInputStream *input, unsigned shift);
00121   void handleStencilOle(WPXInputStream *input, unsigned shift);
00122   void handleStencilShape(WPXInputStream *input);
00123 
00124   virtual bool getChunkHeader(WPXInputStream *input) = 0;
00125   void _handleLevelChange(unsigned level);
00126 
00127   WPXInputStream *m_input;
00128   libwpg::WPGPaintInterface *m_painter;
00129   ChunkHeader m_header;
00130   VSDXCollector *m_collector;
00131   VSDXGeometryList *m_geomList;
00132   std::vector<VSDXGeometryList *> m_geomListVector;
00133   VSDXFieldList m_fieldList;
00134   VSDXCharacterList *m_charList;
00135   VSDXParagraphList *m_paraList;
00136   std::vector<VSDXCharacterList *> m_charListVector;
00137   std::vector<VSDXParagraphList *> m_paraListVector;
00138   VSDXShapeList m_shapeList;
00139   unsigned m_currentLevel;
00140 
00141   VSDXStencils m_stencils;
00142   VSDXStencil *m_currentStencil;
00143   VSDXStencilShape m_stencilShape;
00144   bool m_isStencilStarted;
00145   bool m_isInStyles;
00146   unsigned m_currentPageID;
00147 
00148 private:
00149   VSDXParser();
00150   VSDXParser(const VSDXParser &);
00151   VSDXParser &operator=(const VSDXParser &);
00152 
00153 };
00154 
00155 struct Pointer
00156 {
00157   unsigned Type;
00158   unsigned Offset;
00159   unsigned Length;
00160   unsigned short Format;
00161 };
00162 
00163 } // namespace libvisio
00164 
00165 #endif // __VSDXPARSER_H__
00166 /* vim:set shiftwidth=2 softtabstop=2 expandtab: */