/* -*- 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;
/** \brief the main class to read the graphic part of a HanMac Word-J file
*
*
*
*/
class GreatWksGraph
{
friend class GreatWksDocument;
friend class GreatWksParser;
friend class GreatWksDBParser;
friend class GreatWksDRParser;
friend class GreatWksSSParser;
friend class GreatWksGraphInternal::SubDocument;
public:
//! constructor
explicit GreatWksGraph(GreatWksDocument &document);
//! destructor
virtual ~GreatWksGraph();
/** returns the file version */
int version() const;
/** returns the number of pages */
int numPages() const;
protected:
//! try to send the page graphic
bool sendPageGraphics();
//! sends the data which have not yet been sent to the listener
void flushExtra();
//
// Intermediate level
//
// RSRC
//! read a pattern list block ( PAT# resource block )
bool readPatterns(MWAWEntry const &entry);
//! read a list of color and maybe patterns ( PlTT resource block: v2 )
bool readPalettes(MWAWEntry const &entry);
// DataFork: pict
//! try to send all data corresponding to a zone
bool sendPageFrames(GreatWksGraphInternal::Zone const &zone);
//! try to send a frame
bool sendFrame(std::shared_ptr<GreatWksGraphInternal::Frame> frame, GreatWksGraphInternal::Zone const &zone);
//! try to send a group
bool sendGroup(GreatWksGraphInternal::FrameGroup const &group, GreatWksGraphInternal::Zone const &zone, MWAWPosition const &pos);
/** try to send a group elements by elemenys*/
void sendGroupChild(GreatWksGraphInternal::FrameGroup const &group, GreatWksGraphInternal::Zone const &zone, MWAWPosition const &pos);
//! check if we can send a group as graphic
bool canCreateGraphic(GreatWksGraphInternal::FrameGroup const &group, GreatWksGraphInternal::Zone const &zone);
/** send the group as a graphic zone */
void sendGroup(GreatWksGraphInternal::FrameGroup const &group, GreatWksGraphInternal::Zone const &zone, MWAWGraphicListenerPtr &listener);
//! try to send a textbox
bool sendTextbox(GreatWksGraphInternal::FrameText const &text, GreatWksGraphInternal::Zone const &zone, MWAWPosition const &pos);
//! try to send a textbox via a graphiclistener
bool sendTextboxAsGraphic(MWAWBox2f const &box, GreatWksGraphInternal::FrameText const &text, MWAWGraphicStyle const &style, MWAWListenerPtr listener);
//! try to send the textbox text (via the mainParser)
bool sendTextbox(MWAWEntry const &entry, MWAWListenerPtr listener);
//! try to send a picture
bool sendPicture(MWAWEntry const &entry, MWAWPosition pos);
//! try to send a basic picture
bool sendShape(GreatWksGraphInternal::FrameShape const &graph, GreatWksGraphInternal::Zone const &zone, MWAWPosition const &pos);
// DataFork: graphic zone
//! try to read the graphic zone ( draw file or end of v2 text file)
bool readGraphicZone();
//! return true if this corresponds to a graphic zone
bool isGraphicZone();
//! try to find the beginning of the next graphic zone
bool findGraphicZone();
//! check if a zone is or not a page frame zone
bool isPageFrames();
//! try to read a list of page frame ( picture, texture or basic )
bool readPageFrames();
//! try to read a basic frame header
std::shared_ptr<GreatWksGraphInternal::Frame> readFrameHeader();
//! try to read a frame extra data zone
bool readFrameExtraData(GreatWksGraphInternal::Frame &frame, int id, long endPos=-1);
//! try to read a zone style
bool readStyle(MWAWGraphicStyle &style);
//! try to read a line format style? in v1
bool readLineFormat(std::string &extra);
// interface with mainParser
//
// low level
//
//! try to read a frame extra data zone recursively ( draw method)
bool readFrameExtraDataRec(GreatWksGraphInternal::Zone &zone, int id, std::set<int> &seens, long endPos=-1);
//! check if the graph of zones is ok (ie. does not form loop)
bool checkGraph(GreatWksGraphInternal::Zone &zone, int id, std::set<int> &seens);
private:
GreatWksGraph(GreatWksGraph const &orig) = delete;
GreatWksGraph &operator=(GreatWksGraph const &orig) = delete;
protected:
//
// data
//
//! the document
GreatWksDocument &m_document;
//! the parser state
MWAWParserStatePtr m_parserState;
//! the state
std::shared_ptr<GreatWksGraphInternal::State> m_state;
//! the main parser;
MWAWParser *m_mainParser;
};
#endif
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