GWGraph.hxx
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1 /* -*- Mode: C++; c-default-style: "k&r"; indent-tabs-mode: nil; tab-width: 2; c-basic-offset: 2 -*- */
2 
3 /* libmwaw
4 * Version: MPL 2.0 / LGPLv2+
5 *
6 * The contents of this file are subject to the Mozilla Public License Version
7 * 2.0 (the "License"); you may not use this file except in compliance with
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12 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13 * for the specific language governing rights and limitations under the
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15 *
16 * Major Contributor(s):
17 * Copyright (C) 2002 William Lachance (wrlach@gmail.com)
18 * Copyright (C) 2002,2004 Marc Maurer (uwog@uwog.net)
19 * Copyright (C) 2004-2006 Fridrich Strba (fridrich.strba@bluewin.ch)
20 * Copyright (C) 2006, 2007 Andrew Ziem
21 * Copyright (C) 2011, 2012 Alonso Laurent (alonso@loria.fr)
22 *
23 *
24 * All Rights Reserved.
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26 * For minor contributions see the git repository.
27 *
28 * Alternatively, the contents of this file may be used under the terms of
29 * the GNU Lesser General Public License Version 2 or later (the "LGPLv2+"),
30 * in which case the provisions of the LGPLv2+ are applicable
31 * instead of those above.
32 */
33 
34 /*
35  * Parser to GreatWorks text document ( graphic part )
36  *
37  */
38 #ifndef GW_GRAPH
39 # define GW_GRAPH
40 
41 #include <set>
42 #include <string>
43 #include <vector>
44 
45 #include <libwpd/libwpd.h>
46 
47 #include "libmwaw_internal.hxx"
48 
49 #include "MWAWDebug.hxx"
50 #include "MWAWInputStream.hxx"
51 
52 namespace GWGraphInternal
53 {
54 struct Frame;
55 struct FrameGroup;
56 struct FrameShape;
57 struct FrameText;
58 struct Zone;
59 
60 struct State;
61 class SubDocument;
62 }
63 
64 class GWParser;
65 
71 class GWGraph
72 {
73  friend class GWParser;
75 
76 public:
78  GWGraph(GWParser &parser);
80  virtual ~GWGraph();
81 
83  int version() const;
84 
86  int numPages() const;
87 
88 protected:
90  bool sendPageGraphics();
92  void flushExtra();
93 
94  //
95  // Intermediate level
96  //
97 
98  // RSRC
100  bool readPatterns(MWAWEntry const &entry);
102  bool readPalettes(MWAWEntry const &entry);
103 
104  // DataFork: pict
106  bool sendPageFrames(GWGraphInternal::Zone const &zone);
108  bool sendFrame(shared_ptr<GWGraphInternal::Frame> frame, GWGraphInternal::Zone const &zone);
109 
111  bool sendGroup(GWGraphInternal::FrameGroup const &group, GWGraphInternal::Zone const &zone, MWAWPosition const &pos);
113  void sendGroupChild(GWGraphInternal::FrameGroup const &group, GWGraphInternal::Zone const &zone, MWAWPosition const &pos);
117  void sendGroup(GWGraphInternal::FrameGroup const &group, GWGraphInternal::Zone const &zone, MWAWGraphicListenerPtr &listener);
118 
120  bool sendTextbox(GWGraphInternal::FrameText const &text, GWGraphInternal::Zone const &zone, MWAWPosition const &pos);
122  bool sendTextboxAsGraphic(Box2f const &box, GWGraphInternal::FrameText const &text, MWAWGraphicStyle const &style);
124  bool sendTextbox(MWAWEntry const &entry, bool inGraphic);
125 
127  bool sendPicture(MWAWEntry const &entry, MWAWPosition pos);
129  bool sendShape(GWGraphInternal::FrameShape const &graph, GWGraphInternal::Zone const &zone, MWAWPosition const &pos);
130 
131  // DataFork: graphic zone
132 
134  bool readGraphicZone();
136  bool isGraphicZone();
138  bool findGraphicZone();
139 
141  bool isPageFrames();
143  bool readPageFrames();
145  shared_ptr<GWGraphInternal::Frame> readFrameHeader();
147  bool readFrameExtraData(GWGraphInternal::Frame &frame, int id, long endPos=-1);
148 
150  bool readStyle(MWAWGraphicStyle &style);
152  bool readLineFormat(std::string &extra);
153 
154  // interface with mainParser
155 
156  //
157  // low level
158  //
160  bool readFrameExtraDataRec(GWGraphInternal::Zone &zone, int id, std::set<int> &seens, long endPos=-1);
162  bool checkGraph(GWGraphInternal::Zone &zone, int id, std::set<int> &seens);
163 
164 private:
165  GWGraph(GWGraph const &orig);
166  GWGraph &operator=(GWGraph const &orig);
167 
168 protected:
169  //
170  // data
171  //
174 
176  shared_ptr<GWGraphInternal::State> m_state;
177 
180 };
181 #endif
182 // vim: set filetype=cpp tabstop=2 shiftwidth=2 cindent autoindent smartindent noexpandtab:
Internal: the basic shape of a GWGraph.
Definition: GWGraph.cxx:167
bool checkGraph(GWGraphInternal::Zone &zone, int id, std::set< int > &seens)
check if the graph of zones is ok (ie. does not form loop)
Definition: GWGraph.cxx:1313
bool sendTextbox(GWGraphInternal::FrameText const &text, GWGraphInternal::Zone const &zone, MWAWPosition const &pos)
try to send a textbox
Definition: GWGraph.cxx:1701
void sendGroupChild(GWGraphInternal::FrameGroup const &group, GWGraphInternal::Zone const &zone, MWAWPosition const &pos)
try to send a group elements by elemenys
Definition: GWGraph.cxx:1907
bool readPatterns(MWAWEntry const &entry)
read a pattern list block ( PAT# resource block )
Definition: GWGraph.cxx:452
bool sendShape(GWGraphInternal::FrameShape const &graph, GWGraphInternal::Zone const &zone, MWAWPosition const &pos)
try to send a basic picture
Definition: GWGraph.cxx:2029
void flushExtra()
sends the data which have not yet been sent to the listener
Definition: GWGraph.cxx:2122
Internal: the text zone of a GWGraph.
Definition: GWGraph.cxx:273
bool readPageFrames()
try to read a list of page frame ( picture, texture or basic )
Definition: GWGraph.cxx:1075
int numPages() const
returns the number of pages
Definition: GWGraph.cxx:424
bool sendPicture(MWAWEntry const &entry, MWAWPosition pos)
try to send a picture
Definition: GWGraph.cxx:1763
a structure used to define a picture style
Definition: MWAWGraphicStyle.hxx:47
int version() const
returns the file version
Definition: GWGraph.cxx:418
Internal: a list of graphic corresponding to a page.
Definition: GWGraph.cxx:316
bool isPageFrames()
check if a zone is or not a page frame zone
Definition: GWGraph.cxx:736
Internal: the subdocument of a GWGraph.
Definition: GWGraph.cxx:345
Internal: the group zone of a GWGraph.
Definition: GWGraph.cxx:231
virtual ~GWGraph()
destructor
Definition: GWGraph.cxx:415
bool sendGroup(GWGraphInternal::FrameGroup const &group, GWGraphInternal::Zone const &zone, MWAWPosition const &pos)
try to send a group
Definition: GWGraph.cxx:1807
bool sendTextboxAsGraphic(Box2f const &box, GWGraphInternal::FrameText const &text, MWAWGraphicStyle const &style)
try to send a textbox via a graphiclistener
Definition: GWGraph.cxx:1738
GWParser * m_mainParser
the main parser;
Definition: GWGraph.hxx:179
MWAWParserStatePtr m_parserState
the parser state
Definition: GWGraph.hxx:173
bool findGraphicZone()
try to find the beginning of the next graphic zone
Definition: GWGraph.cxx:666
the main class to read the graphic part of a HanMac Word-J file
Definition: GWGraph.hxx:71
bool isGraphicZone()
return true if this corresponds to a graphic zone
Definition: GWGraph.cxx:551
shared_ptr< GWGraphInternal::Frame > readFrameHeader()
try to read a basic frame header
Definition: GWGraph.cxx:1378
GWGraph & operator=(GWGraph const &orig)
Internal: the graphic zone of a GWGraph.
Definition: GWGraph.cxx:62
bool readFrameExtraDataRec(GWGraphInternal::Zone &zone, int id, std::set< int > &seens, long endPos=-1)
try to read a frame extra data zone recursively ( draw method)
Definition: GWGraph.cxx:1338
shared_ptr< MWAWGraphicListener > MWAWGraphicListenerPtr
a smart pointer of MWAWGraphicListener
Definition: libmwaw_internal.hxx:346
bool readPalettes(MWAWEntry const &entry)
read a list of color and maybe patterns ( PlTT resource block: v2 )
Definition: GWGraph.cxx:495
bool sendFrame(shared_ptr< GWGraphInternal::Frame > frame, GWGraphInternal::Zone const &zone)
try to send a frame
Definition: GWGraph.cxx:2047
bool sendPageGraphics()
try to send the page graphic
Definition: GWGraph.cxx:2107
shared_ptr< MWAWParserState > MWAWParserStatePtr
a smart pointer of MWAWParserState
Definition: libmwaw_internal.hxx:356
bool readStyle(MWAWGraphicStyle &style)
try to read a zone style
Definition: GWGraph.cxx:794
the main class to read a GreatWorks text file
Definition: GWParser.hxx:57
Class to define the position of an object (textbox, picture, ..) in the document. ...
Definition: MWAWPosition.hxx:47
bool readGraphicZone()
try to read the graphic zone ( draw file or end of v2 text file)
Definition: GWGraph.cxx:589
basic class to store an entry in a file This contained :
Definition: MWAWEntry.hxx:46
bool canCreateGraphic(GWGraphInternal::FrameGroup const &group, GWGraphInternal::Zone const &zone)
check if we can send a group as graphic
Definition: GWGraph.cxx:1832
bool readLineFormat(std::string &extra)
try to read a line format style? in v1
Definition: GWGraph.cxx:1053
bool sendPageFrames(GWGraphInternal::Zone const &zone)
try to send all data corresponding to a zone
Definition: GWGraph.cxx:2087
GWGraph(GWParser &parser)
constructor
Definition: GWGraph.cxx:409
shared_ptr< GWGraphInternal::State > m_state
the state
Definition: GWGraph.hxx:176
bool readFrameExtraData(GWGraphInternal::Frame &frame, int id, long endPos=-1)
try to read a frame extra data zone
Definition: GWGraph.cxx:1546

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