src/history.h

   1 /**
   2  * Copyright (C) 2007 Benjamin C. Meyer
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  17  */
  18
  19 #ifndef HISTORY_H
  20 #define HISTORY_H
  21
  22 #include <qobject.h>
  23 #include <qabstractitemmodel.h>
  24 #include <qlist.h>
  25
  26 class QAction;
  27
  28 class History : public QObject
  29 {
  30
  31 Q_OBJECT
  32
  33 signals:
  34     void goToIndex(const QModelIndex &index);
  35
  36 public:
  37     History(QObject *parent = 0);
  38     ~History();
  39
  40     QAction *backAction() const;
  41     QAction *forwardAction() const;
  42
  43 public slots:
  44     void goBack();
  45     void goForward();
  46     void currentChanged(const QModelIndex &index);
  47
  48 private:
  49     QAction *goBackAction;
  50     QAction *goForwardAction;
  51
  52     QList<QPersistentModelIndex> history;
  53     int currentLocation;
  54 };
  55
  56 #endif // MAINWINDOW_H
  57