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// Copyright (c) 2003,2004 Charles Samuels <[email protected]>
// See the file COPYING for redistribution terms.
#ifndef BASE_H
#define BASE_H
// ;)
#define unless(e) if(!(e))
#include <qstring.h>
#include <qobject.h>
#include <qptrlist.h>
class File;
class Slice;
typedef unsigned int FileId;
class Base : public QObject
{
Q_OBJECT
struct Private;
Private *d; // not for BC, but for compile times :)
friend class Slice;
friend class File;
unsigned int mFormatVersion;
public:
Base(const QString &file);
~Base();
File add(const QString &file);
File find(FileId id);
void clear();
/**
* get the highest FileID
**/
FileId high() const;
/**
* @return first item after the given id (inclusive)
**/
File first(FileId id=1);
QString property(FileId id, const QString &property) const;
void setProperty(FileId id, const QString &key, const QString &value);
QStringList properties(FileId id) const;
void clearProperty(FileId, const QString &key);
/**
* same as File::remove
**/
void remove(File f);
/**
* change the id of a file
**/
void move(FileId oldid, FileId newid);
void dump();
QPtrList<Slice> slices();
Slice *addSlice(const QString &name);
Slice *defaultSlice();
Slice *sliceById(int id);
unsigned int formatVersion() const { return mFormatVersion; }
void resetFormatVersion();
public slots:
void notifyChanged(const File &file);
signals:
void added(File file);
void removed(File file);
void modified(File file);
void addedTo(Slice *slice, File file);
void removedFrom(Slice *slice, File file);
/**
* emitted when something of the slices gets modified
* @ref Slice calls this itself via a friendship
**/
void slicesModified();
private:
void loadIntoCache(FileId id) const;
private: // friends for Slice
void removeSlice(Slice *slice);
private:
/**
* load the xml that lives at the head of the db and contains
* potentially lots of structured data
**/
void loadMetaXML(const QString &xml);
QString saveMetaXML();
};
#endif
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