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/*********
*
* This file is part of BibleTime's source code, http://www.bibletime.info/.
*
* Copyright 1999-2011 by the BibleTime developers.
* The BibleTime source code is licensed under the GNU General Public License version 2.0.
*
**********/
#ifndef BTHISTORY_H
#define BTHISTORY_H
#include <QObject>
#include <QList>
class CSwordKey;
class QAction;
class QWidget;
class BTHistory: public QObject {
Q_OBJECT
public:
BTHistory(QWidget* parent);
/**
* Return a list of Actions behind the current point, the first of the history list will be the
* last in the returned list and vice versa.
*/
QList<QAction*> getBackList();
/**
* Return a list of Actions after the current point.
*/
QList<QAction*> getFwList();
public slots:
/**
* Add a new key to the history.
*/
void add(CSwordKey* newKey);
/**
* Move the current point in history list.
*/
void move(QAction*);
/**
* Go back one step in history.
*/
void back();
/**
* Go forward one step in history.
*/
void fw();
signals:
/**
* Signal will be sent when the history has been changed (added, moved)
*/
void historyChanged(bool backEnabled, bool fwEnabled);
/**
* Signal will be sent when the current point in history has moved
*/
void historyMoved(QString& newKey);
private:
void sendChangedSignal();
bool class_invariant();
QList<QAction*> m_historyList;
int m_index; //pointer to the current item; -1==empty, 0==first etc.
bool m_inHistoryFunction; //to prevent recursive behaviour
};
#endif
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