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// -*- C++ -*-
#ifndef history_h
#define history_h
// history.h
//
// (C) 2001 Stefan Kebekus
// Distributed under the GPL
#include <qobject.h>
#include <qvaluelist.h>
#define HISTORYLENGTH 10
class HistoryItem
{
public:
HistoryItem(Q_UINT32, Q_UINT32);
HistoryItem() {}
bool operator== (const HistoryItem& item) const;
Q_UINT32 page;
Q_UINT32 ypos;
};
inline
bool operator!=(const HistoryItem& lhs, const HistoryItem& rhs)
{
return !(lhs == rhs);
}
class History : public QObject
{
Q_OBJECT
public:
History();
void add(Q_UINT32 page, Q_UINT32 ypos);
void clear();
HistoryItem* forward();
HistoryItem* back();
signals:
void backItem(bool);
void forwardItem(bool);
private:
// List of history items. First item is the oldest.
QValueList<HistoryItem> historyList;
QValueList<HistoryItem>::iterator currentItem;
};
#endif
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