MsWksGraph.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 Microsoft Works text document ( graphic part )
 *
 */
#ifndef MS_WKS_MWAW_GRAPH
#  define MS_WKS_MWAW_GRAPH

#include <list>
#include <string>
#include <vector>

#include "MWAWPosition.hxx"

#include "MWAWEntry.hxx"
#include "MWAWGraphicStyle.hxx"
#include "MWAWParser.hxx"

namespace MsWksGraphInternal
{
struct GroupZone;
struct RBZone;
struct TextBox;
struct Zone;

struct State;

class SubDocument;
}

class MsWksTable;
class MsWksDocument;

class MsWksParser;
class MsWks4Zone;
class MsWksDBParser;
class MsWksDRParser;
class MsWksSSParser;

class MsWksGraph
{
  friend class MsWksDocument;
  friend class MsWksTable;

  friend class MsWksParser;
  friend class MsWks4Zone;
  friend class MsWksDBParser;
  friend class MsWksDRParser;
  friend class MsWksSSParser;
  friend class MsWksGraphInternal::SubDocument;
public:
  struct Style;

  MsWksGraph(MsWksDocument &document);
  virtual ~MsWksGraph();

  void setPageLeftTop(MWAWVec2f const &leftTop);

  int version() const;
  int numPages(int zoneId) const;

  void send(int id, MWAWPosition const &pos);
  void sendAll(int zoneId, bool mainZone);

  struct SendData {
    SendData() : m_type(RBDR), m_id(-1), m_anchor(MWAWPosition::Char), m_page(-1), m_size()
    {
    }
    enum Type { RBDR, RBIL, ALL } m_type;
    int m_id;
    MWAWPosition::AnchorTo m_anchor;
    int m_page;
    MWAWVec2i m_size;
  };
  void sendObjects(SendData const &what);

  void computePositions(int zoneId, std::vector<int> &linesHeight, std::vector<int> &pagesHeight);

protected:
  void flushExtra();

  //
  // Intermediate level
  //

  bool readPictHeader(MsWksGraphInternal::Zone &pict);
  bool readGradient(Style &style);
  int getEntryPictureV1(int zoneId, MWAWEntry &zone, bool autoSend=true);

  int getEntryPicture(int zoneId, MWAWEntry &zone, bool autoSend=true, int order=-1000);

  bool readRB(MWAWInputStreamPtr input, MWAWEntry const &entry, int kind);

  // version 4 file

  bool readPictureV4(MWAWInputStreamPtr input, MWAWEntry const &entry);

  bool readText(MsWksGraphInternal::TextBox &textBox);
  void sendTextBox(int zId, MWAWListenerPtr listener);
  void checkTextBoxLinks(MsWksGraphInternal::RBZone &rbZone);

  // interface function

  bool getZoneGraphicStyle(int zoneId, MWAWGraphicStyle &style) const;
  bool getZonePosition(int zoneId, MWAWPosition::AnchorTo anchor, MWAWPosition &pos) const;

  void sendFrameText(MWAWEntry const &entry, std::string const &frame);

  void sendTable(int id);

  void sendChart(int zoneId);

  //
  // low level
  //
  shared_ptr<MsWksGraphInternal::GroupZone> readGroup(MsWksGraphInternal::Zone &group);
  void sendGroup(int zoneId, MWAWPosition const &pos);
  void sendGroupChild(int zoneId, MWAWPosition const &pos);
  bool canCreateGraphic(MsWksGraphInternal::GroupZone const &group) const;
  void sendGroup(MsWksGraphInternal::GroupZone const &group, MWAWGraphicListenerPtr &listener) const;
  bool readFont(MWAWFont &font);

public:
  struct Style : public MWAWGraphicStyle {
    Style() : MWAWGraphicStyle(), m_baseLineColor(MWAWColor::black()), m_baseSurfaceColor(MWAWColor::white())
    {
      m_fillRuleEvenOdd=true;
    }
    friend std::ostream &operator<<(std::ostream &o, Style const &st)
    {
      o << static_cast<MWAWGraphicStyle const &>(st);
      if (st.m_baseLineColor != st.m_lineColor)
        o << "lineColor[base]=" << st.m_baseLineColor << ",";
      if (st.m_baseSurfaceColor != st.m_surfaceColor)
        o << "surfaceColor[base]=" << st.m_baseSurfaceColor << ",";

      return o;
    }

    MWAWColor m_baseLineColor;
    MWAWColor m_baseSurfaceColor;
  };

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

protected:
  //
  // data
  //
  MWAWParserStatePtr m_parserState;

  shared_ptr<MsWksGraphInternal::State> m_state;

  MWAWParser *m_mainParser;
  MsWksDocument &m_document;

  shared_ptr<MsWksTable> m_tableParser;
};
#endif
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