src/BufferList.h

   1 // -*- C++ -*-
   2 /**
   3  * \file BufferList.h
   4  * This file is part of LyX, the document processor.
   5  * Licence details can be found in the file COPYING.
   6  *
   7  * \author Lars Gullik Bjønnes
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #ifndef BUFFER_LIST_H
  13 #define BUFFER_LIST_H
  14
  15 #include "support/docstring.h"
  16
  17 #include <vector>
  18
  19
  20 namespace lyx {
  21
  22 class Buffer;
  23 class OutputParams;
  24
  25 namespace support {
  26 class FileName;
  27 class FileNameList;
  28 }
  29
  30 /**
  31  * The class holds all all open buffers, and handles construction
  32  * and deletions of new ones.
  33  */
  34 class BufferList {
  35 public:
  36         typedef std::vector<Buffer *>::iterator iterator;
  37         typedef std::vector<Buffer *>::const_iterator const_iterator;
  38
  39 public:
  40         BufferList();
  41         ~BufferList();
  42
  43         iterator begin();
  44         const_iterator begin() const;
  45
  46         iterator end();
  47         const_iterator end() const;
  48
  49         /// create a new buffer
  50         /// \return 0 if the Buffer creation is not possible for whatever reason.
  51         Buffer * newBuffer(std::string const & s, bool ronly = false);
  52
  53         /// delete a buffer
  54         void release(Buffer * b);
  55
  56         /// Release \p child if it really is a child and is not used elsewhere.
  57         /// \return true is the file was closed.
  58         bool releaseChild(Buffer * parent, Buffer * child);
  59
  60         /// Close all open buffers.
  61         void closeAll();
  62
  63         /// returns a vector with all the buffers filenames
  64         support::FileNameList const & fileNames() const;
  65
  66         /// FIXME
  67         void updateIncludedTeXfiles(std::string const &, OutputParams const &);
  68
  69         /// emergency save for all buffers
  70         void emergencyWriteAll();
  71
  72         /// save emergency file for the given buffer
  73         /**
  74           * \return a status message towards the user.
  75           */
  76         docstring emergencyWrite(Buffer * buf);
  77
  78         /// return true if no buffers loaded
  79         bool empty() const;
  80
  81         /// return head of buffer list if any
  82         Buffer * first();
  83
  84         /// return back of buffer list if any
  85         Buffer * last();
  86
  87         /// returns true if the buffer exists already
  88         bool exists(support::FileName const &) const;
  89
  90         /// returns true if the buffer is loaded
  91         bool isLoaded(Buffer const * b) const;
  92
  93         /// return index of named buffer in buffer list
  94         int bufferNum(support::FileName const & name) const;
  95         /// returns a pointer to the buffer with the given name.
  96         Buffer * getBuffer(support::FileName const &) const;
  97         /// returns a pointer to the buffer with the given number.
  98         Buffer * getBuffer(unsigned int);
  99         /// returns a pointer to the buffer whose temppath matches the string
 100         Buffer * getBufferFromTmp(std::string const &);
 101
 102         /** returns a pointer to the buffer that follows argument in
 103          * buffer list. The buffer following the last in list is the
 104          * first one.
 105          */
 106         Buffer * next(Buffer const *) const;
 107
 108         /** returns a pointer to the buffer that precedes argument in
 109          * buffer list. The buffer preceding the first in list is the
 110          * last one.
 111          */
 112         Buffer * previous(Buffer const *) const;
 113
 114         /// reset current author for all buffers
 115         void setCurrentAuthor(docstring const & name, docstring const & email);
 116
 117 private:
 118         /// noncopiable
 119         BufferList(BufferList const &);
 120         void operator=(BufferList const &);
 121
 122         typedef std::vector<Buffer *> BufferStorage;
 123
 124         /// storage of all buffers
 125         BufferStorage bstore;
 126         /// storage of all internal buffers used for cut&paste, etc.
 127         BufferStorage binternal;
 128 };
 129
 130 /// Implementation is in LyX.cpp
 131 extern BufferList & theBufferList();
 132
 133
 134 } // namespace lyx
 135
 136 #endif // BUFFERLIST_H