src/k8jshistory/k8jshistory.h

   1 /* coded by Ketmar // Vampire Avalon (psyc://ketmar.no-ip.org/~Ketmar)
   2  * Understanding is not required. Only obedience.
   3  *
   4  * This program is free software. It comes without any warranty, to
   5  * the extent permitted by applicable law. You can redistribute it
   6  * and/or modify it under the terms of the Do What The Fuck You Want
   7  * To Public License, Version 2, as published by Sam Hocevar. See
   8  * http://sam.zoy.org/wtfpl/COPYING for more details.
   9  */
  10 #ifndef K8JSHISTORY_H
  11 #define K8JSHISTORY_H
  12
  13 #include <QDateTime>
  14 #include <QFile>
  15 #include <QString>
  16 #include <QList>
  17
  18 //#include "k8history.h"
  19
  20
  21 class HistoryFile;
  22
  23
  24 class HistoryMessage : public HistoryMessageBase {
  25   friend class HistoryFile;
  26
  27 public:
  28   HistoryMessage () : HistoryMessageBase() {}
  29   virtual ~HistoryMessage () {}
  30
  31 private:
  32   const uchar *parse (const uchar *ptr, int *maxleft, const QString &myUni);
  33 };
  34
  35
  36 class HistoryFile : public HistoryFileBase {
  37   friend class HistoryMessage;
  38
  39 public:
  40   HistoryFile (const QString &fname, const QString &myUni);
  41   virtual ~HistoryFile ();
  42
  43   virtual bool open (OpenMode newmode);
  44   //virtual bool open (bool allowCreate);
  45   virtual bool isOpen () const;
  46   //virtual bool exists () const;
  47   virtual void close ();
  48   virtual void remove ();
  49
  50   virtual int count ();
  51
  52   virtual bool append (const HistoryMessage &msg);
  53
  54   /* idx: 0..count-1; idx<0: idx += count; */
  55   virtual bool read (int idx, HistoryMessage &msg);
  56
  57 private:
  58   bool scanMessages ();
  59
  60 private:
  61   int mCount; // -1: not counted yet
  62   QFile mFile;
  63   uchar *mMap;
  64   int mSize;
  65   QString mMyUni;
  66   QList<uint> mMsgOfs; // [0..mCount] (the last one marks position for adding new message)
  67 };
  68
  69
  70 #endif