taskwarrior/src/TDB.h
Paul Beckingham af7803ea27 Enhancement - undo
- Removed obsolete undelete command.
- Removed obsolete undo command.
- Implemented new undo command as a call to the stubbed TDB::undo call.
2009-06-28 21:51:43 -04:00

86 lines
2.4 KiB
C++

////////////////////////////////////////////////////////////////////////////////
// task - a command line task list manager.
//
// Copyright 2006 - 2009, Paul Beckingham.
// All rights reserved.
//
// This program is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free Software
// Foundation; either version 2 of the License, or (at your option) any later
// version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
// details.
//
// You should have received a copy of the GNU General Public License along with
// this program; if not, write to the
//
// Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor,
// Boston, MA
// 02110-1301
// USA
//
////////////////////////////////////////////////////////////////////////////////
#ifndef INCLUDED_TDB
#define INCLUDED_TDB
#include <map>
#include <vector>
#include <string>
#include "Location.h"
#include "Filter.h"
#include "Task.h"
// Length of longest line.
#define T_LINE_MAX 32768
class TDB
{
public:
TDB (); // Default constructor
~TDB (); // Destructor
TDB (const TDB&);
TDB& operator= (const TDB&);
void clear ();
void location (const std::string&);
void lock (bool lockFile = true);
void unlock ();
int load (std::vector <Task>&, Filter&);
int loadPending (std::vector <Task>&, Filter&);
int loadCompleted (std::vector <Task>&, Filter&);
void add (const Task&); // Single task add to pending
void update (const Task&); // Single task update to pending
int commit (); // Write out all tasks
int gc (); // Clean up pending
int nextId ();
void undo ();
private:
FILE* openAndLock (const std::string&);
void writeUndo (const Task&, FILE*);
void writeUndo (const Task&, const Task&, FILE*);
private:
std::vector <Location> mLocations;
bool mLock;
bool mAllOpenAndLocked;
int mId;
std::vector <Task> mPending; // Contents of pending.data
std::vector <Task> mNew; // Uncommitted new tasks
std::vector <Task> mModified; // Uncommitted modified tasks
// TODO Need cache of raw file contents to preserve comments.
};
#endif
////////////////////////////////////////////////////////////////////////////////