apps/keditbookmarks/bookmarkiterator.h

   1 // vim: set ts=4 sts=4 sw=4 et:
   2 /* This file is part of the KDE project
   3    Copyright (C) 2002-2003 Alexander Kellett <lypanov@kde.org>
   4
   5    This program is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU General Public
   7    License version 2 or at your option version 3 as published by
   8    the Free Software Foundation.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>
  17 */
  18
  19 #ifndef __bookmarkiterator_h
  20 #define __bookmarkiterator_h
  21
  22 #include <QtCore/QObject>
  23 #include <QtCore/QList>
  24 #include <kbookmark.h>
  25
  26 class BookmarkIteratorHolder;
  27
  28 class BookmarkIterator : public QObject
  29 {
  30    Q_OBJECT
  31
  32 public:
  33    BookmarkIterator(QList<KBookmark> bks);
  34    virtual ~BookmarkIterator();
  35    virtual BookmarkIteratorHolder* holder() const = 0;
  36
  37 public Q_SLOTS:
  38    void nextOne();
  39    void delayedEmitNextOne();
  40    void slotCancelTest(BookmarkIterator *t);
  41
  42 Q_SIGNALS:
  43    void deleteSelf(BookmarkIterator *);
  44
  45 protected:
  46    virtual void doAction() = 0;
  47    virtual bool isApplicable(const KBookmark &bk) const = 0;
  48    const KBookmark curBk() const;
  49
  50 private:
  51    KBookmark m_bk;
  52    QList<KBookmark> m_bklist;
  53 };
  54
  55 class BookmarkIteratorHolder
  56 {
  57 public:
  58    void cancelAllItrs();
  59    void removeItr(BookmarkIterator*);
  60    void insertItr(BookmarkIterator*);
  61 protected:
  62    BookmarkIteratorHolder();
  63    virtual ~BookmarkIteratorHolder() {}
  64    virtual void doItrListChanged() = 0;
  65    int count() const { return m_itrs.count(); }
  66 private:
  67    QList<BookmarkIterator *> m_itrs;
  68 };
  69
  70 #endif