/* This file is part of KCachegrind.
   Copyright (C) 2002 Josef Weidendorfer <Josef.Weidendorfer@gmx.de>

   KCachegrind 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, version 2.

   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; see the file COPYING.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/

/*
 * Base class for loaders of profiling data.
 */

#ifndef LOADER_H
#define LOADER_H

#include <tqobject.h>
#include <tqptrlist.h>
#include <tqstring.h>

class TQFile;
class TraceData;
class TracePart;
class Loader;


typedef TQPtrList<Loader> LoaderList;

/**
 * To implement a new loader, inherit from the Loader class
 * and implement canLoadTrace(), loadTrace() and if a trace in
 * this format can consist out of multiple parts, implement
 * isPartOfTrace(), too.
 * For registration, put into the static initLoaders() function
 * of this base class a _loaderList.append(new MyLoader()).
 *
 * KCachegrind will use the first matching loader.
 */

class Loader: public TQObject
{
    Q_OBJECT
  

public:
  Loader(TQString name, TQString desc);
  virtual ~Loader();

  virtual bool canLoadTrace(TQFile* file);
  virtual bool loadTrace(TracePart*);

  static Loader* matchingLoader(TQFile* file);
  static Loader* loader(TQString name);
  static void initLoaders();
  static void deleteLoaders();

  TQString name() const { return _name; }
  TQString description() const { return _description; }

signals:
  void updateStatus(TQString, int);

private:
  TQString _name, _description;

  static LoaderList _loaderList;
};



#endif
