* Copyright (c) 2008 Stephan Aßmus <superstippi@gmx.de>. All rights reserved.
* Distributed under the terms of the MIT/X11 license.
*
* Copyright (c) 1999 Mike Steed. You are free to use and distribute this software
* as long as it is accompanied by it's documentation and this copyright notice.
* The software comes with no warranty, etc.
*/
#ifndef SCANNER_H
#define SCANNER_H
#include <string>
#include <Looper.h>
#include <Message.h>
#include <Messenger.h>
#include <Volume.h>
#include "Snapshot.h"
class BDirectory;
using std::string;
class Scanner: public BLooper {
public:
Scanner(BVolume* volume, BHandler* handler);
virtual ~Scanner();
virtual void MessageReceived(BMessage* message);
VolumeSnapshot* Snapshot() const
{ return fBusy ? NULL : fSnapshot; }
void Refresh(FileInfo* startInfo = NULL);
void Cancel();
bool IsBusy() const
{ return fBusy; }
const char* Task() const
{ return fTask.c_str(); }
float Progress() const
{ return min_c(1.0, fProgress); }
FileInfo* CurrentDir() const
{ return fBusy ? NULL : fSnapshot->currentDir; }
void ChangeDir(FileInfo* info)
{ fSnapshot->currentDir = info; }
void SetDesiredPath(string &path);
dev_t Device() const
{ return fVolume->Device(); }
void RequestQuit();
private:
void _RunScan(FileInfo *startInfo);
FileInfo* _GetFileInfo(BDirectory* dir, FileInfo* parent);
void _ChangeToDesired();
bool _DirectoryContains(FileInfo* currentDir,
entry_ref* ref);
BMessenger fListener;
BMessage fDoneMessage;
BMessage fProgressMessage;
BVolume* fVolume;
off_t fVolumeBytesInUse;
off_t fVolumeBytesScanned;
float fProgress;
float fLastReport;
VolumeSnapshot* fSnapshot;
string fDesiredPath;
string fTask;
bool fBusy;
bool fQuitRequested;
};
#endif
