GreatWksGraph.hxx

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/* -*- Mode: C++; c-default-style: "k&r"; indent-tabs-mode: nil; tab-width: 2; c-basic-offset: 2 -*- */

/* libmwaw
* Version: MPL 2.0 / LGPLv2+
*
* The contents of this file are subject to the Mozilla Public License Version
* 2.0 (the "License"); you may not use this file except in compliance with
* the License or as specified alternatively below. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* Major Contributor(s):
* Copyright (C) 2002 William Lachance (wrlach@gmail.com)
* Copyright (C) 2002,2004 Marc Maurer (uwog@uwog.net)
* Copyright (C) 2004-2006 Fridrich Strba (fridrich.strba@bluewin.ch)
* Copyright (C) 2006, 2007 Andrew Ziem
* Copyright (C) 2011, 2012 Alonso Laurent (alonso@loria.fr)
*
*
* All Rights Reserved.
*
* For minor contributions see the git repository.
*
* Alternatively, the contents of this file may be used under the terms of
* the GNU Lesser General Public License Version 2 or later (the "LGPLv2+"),
* in which case the provisions of the LGPLv2+ are applicable
* instead of those above.
*/

/*
 * Parser to GreatWorks text document ( graphic part )
 *
 */
#ifndef GREAT_WKS_GRAPH
#  define GREAT_WKS_GRAPH

#include <set>
#include <string>
#include <vector>

#include <librevenge/librevenge.h>

#include "libmwaw_internal.hxx"

#include "MWAWDebug.hxx"
#include "MWAWInputStream.hxx"

namespace GreatWksGraphInternal
{
struct Frame;
struct FrameGroup;
struct FrameShape;
struct FrameText;
struct Zone;

struct State;
class SubDocument;
}

class GreatWksDocument;
class GreatWksParser;
class GreatWksDBParser;
class GreatWksDRParser;
class GreatWksSSParser;

class GreatWksGraph
{
  friend class GreatWksDocument;
  friend class GreatWksParser;
  friend class GreatWksDBParser;
  friend class GreatWksDRParser;
  friend class GreatWksSSParser;
  friend class GreatWksGraphInternal::SubDocument;

public:
  GreatWksGraph(GreatWksDocument &document);
  virtual ~GreatWksGraph();

  int version() const;

  int numPages() const;

protected:
  bool sendPageGraphics();
  void flushExtra();

  //
  // Intermediate level
  //

  // RSRC
  bool readPatterns(MWAWEntry const &entry);
  bool readPalettes(MWAWEntry const &entry);

  // DataFork: pict
  bool sendPageFrames(GreatWksGraphInternal::Zone const &zone);
  bool sendFrame(shared_ptr<GreatWksGraphInternal::Frame> frame, GreatWksGraphInternal::Zone const &zone);

  bool sendGroup(GreatWksGraphInternal::FrameGroup const &group, GreatWksGraphInternal::Zone const &zone, MWAWPosition const &pos);
  void sendGroupChild(GreatWksGraphInternal::FrameGroup const &group, GreatWksGraphInternal::Zone const &zone, MWAWPosition const &pos);
  bool canCreateGraphic(GreatWksGraphInternal::FrameGroup const &group, GreatWksGraphInternal::Zone const &zone);
  void sendGroup(GreatWksGraphInternal::FrameGroup const &group, GreatWksGraphInternal::Zone const &zone, MWAWGraphicListenerPtr &listener);

  bool sendTextbox(GreatWksGraphInternal::FrameText const &text, GreatWksGraphInternal::Zone const &zone, MWAWPosition const &pos);
  bool sendTextboxAsGraphic(MWAWBox2f const &box, GreatWksGraphInternal::FrameText const &text, MWAWGraphicStyle const &style, MWAWListenerPtr listener);
  bool sendTextbox(MWAWEntry const &entry, MWAWListenerPtr listener);

  bool sendPicture(MWAWEntry const &entry, MWAWPosition pos);
  bool sendShape(GreatWksGraphInternal::FrameShape const &graph, GreatWksGraphInternal::Zone const &zone, MWAWPosition const &pos);

  // DataFork: graphic zone

  bool readGraphicZone();
  bool isGraphicZone();
  bool findGraphicZone();

  bool isPageFrames();
  bool readPageFrames();
  shared_ptr<GreatWksGraphInternal::Frame> readFrameHeader();
  bool readFrameExtraData(GreatWksGraphInternal::Frame &frame, int id, long endPos=-1);

  bool readStyle(MWAWGraphicStyle &style);
  bool readLineFormat(std::string &extra);

  // interface with mainParser

  //
  // low level
  //
  bool readFrameExtraDataRec(GreatWksGraphInternal::Zone &zone, int id, std::set<int> &seens, long endPos=-1);
  bool checkGraph(GreatWksGraphInternal::Zone &zone, int id, std::set<int> &seens);

private:
  GreatWksGraph(GreatWksGraph const &orig);
  GreatWksGraph &operator=(GreatWksGraph const &orig);

protected:
  //
  // data
  //
  GreatWksDocument &m_document;
  MWAWParserStatePtr m_parserState;
  shared_ptr<GreatWksGraphInternal::State> m_state;
  MWAWParser *m_mainParser;
};
#endif
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