MWAWPictOLEContainer.hxx
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3 /* libmwaw
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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)
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33 
34 /* This header contains code specific to an ole object which can be stored in a
35  * WPXBinaryData
36  */
37 
38 #ifndef MWAW_PICT_OLECONTAINER
39 # define MWAW_PICT_OLECONTAINER
40 
41 # include <assert.h>
42 # include <ostream>
43 
44 # include <libwpd/libwpd.h>
45 
46 # include "libmwaw_internal.hxx"
47 # include "MWAWPict.hxx"
48 
49 class WPXBinaryData;
51 typedef shared_ptr<MWAWInputStream> MWAWInputStreamPtr;
52 
55 {
56 public:
58  virtual Type getType() const {
60  }
61 
63  virtual bool getBinary(WPXBinaryData &res, std::string &s) const {
64  if (!valid() || isEmpty()) return false;
65 
66  s = "object/ole";
67  res = m_data;
68  return true;
69  }
70 
72  virtual bool valid() const {
73  return !m_empty;
74  }
75 
77  bool isEmpty() const {
78  return m_empty;
79  }
80 
84  static MWAWPictOLEContainer *get(MWAWInputStreamPtr input, int size) {
85  MWAWPictOLEContainer *res = 0L;
86  Box2f box;
87  if (checkOrGet(input, size, box, &res) == MWAW_R_BAD) return 0L;
88  return res;
89  }
90 
93  virtual int cmp(MWAWPict const &a) const {
94  int diff = MWAWPict::cmp(a);
95  if (diff) return diff;
96  MWAWPictOLEContainer const &aPict = static_cast<MWAWPictOLEContainer const &>(a);
97 
98  diff = (int) m_empty - (int) aPict.m_empty;
99  if (diff) return (diff < 0) ? -1 : 1;
100  long diffL = (long) m_data.size() - (long) aPict.m_data.size();
101  if (diffL) return (diffL < 0) ? -1 : 1;
102 
103  return 0;
104  }
105 
106 protected:
110 
115  static ReadResult checkOrGet(MWAWInputStreamPtr input, int size,
116  Box2f &box, MWAWPictOLEContainer **result = 0L);
117 
119  WPXBinaryData m_data;
120 
122  bool m_empty;
123 };
124 
125 #endif
126 // vim: set filetype=cpp tabstop=2 shiftwidth=2 cindent autoindent smartindent noexpandtab:
shared_ptr< MWAWInputStream > MWAWInputStreamPtr
Definition: ACText.hxx:44
virtual int cmp(MWAWPict const &a) const
a virtual function used to obtain a strict order, must be redefined in the subs class ...
Definition: MWAWPictOLEContainer.hxx:93
ReadResult
an enum to defined the result of a parsing use by some picture&#39;s classes which can read their data ...
Definition: MWAWPict.hxx:79
bool m_empty
some picture can be valid but empty
Definition: MWAWPictOLEContainer.hxx:122
MWAWPictOLEContainer()
Definition: MWAWPictOLEContainer.hxx:109
virtual int cmp(MWAWPict const &a) const
a virtual function used to obtain a strict order, must be redefined in the subs class ...
Definition: MWAWPict.hxx:104
virtual bool valid() const
returns true if the picture is valid
Definition: MWAWPictOLEContainer.hxx:72
Internal class used to read the file stream Internal class used to read the file stream, this class adds some usefull functions to the basic WPXInputStream:
Definition: MWAWInputStream.hxx:59
bool isEmpty() const
returns true if the picture is valid and has size 0 or contains no oleContainer
Definition: MWAWPictOLEContainer.hxx:77
Definition: MWAWPict.hxx:69
static ReadResult checkOrGet(MWAWInputStreamPtr input, int size, Box2f &box, MWAWPictOLEContainer **result=0L)
checks if size is &gt;= 0
Definition: MWAWPictOLEContainer.cxx:45
virtual bool getBinary(WPXBinaryData &res, std::string &s) const
returns the final WPXBinary oleContainer
Definition: MWAWPictOLEContainer.hxx:63
Type
the different picture types:
Definition: MWAWPict.hxx:69
virtual Type getType() const
returns the picture type
Definition: MWAWPictOLEContainer.hxx:58
WPXBinaryData m_data
the oleContainer size (without the empty header of 512 characters)
Definition: MWAWPictOLEContainer.hxx:119
Definition: MWAWPict.hxx:79
MWAWPictOLEContainer(Box2f)
protected constructor: use check to construct a picture
Definition: MWAWPictOLEContainer.hxx:108
an abstract class which defines a simple container to store ole data
Definition: MWAWPictOLEContainer.hxx:54
Generic function used to define/store a picture.
Definition: MWAWPict.hxx:55

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