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
8 * the License or as specified alternatively below. You may obtain a copy of
9 * the License at http://www.mozilla.org/MPL/
10 *
11 * Software distributed under the License is distributed on an "AS IS" basis,
12 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13 * for the specific language governing rights and limitations under the
14 * License.
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.
25 *
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:

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