1 files changed, 169 insertions, 0 deletions
diff --git a/klipper/history.h b/klipper/history.h
new file mode 100644
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--- /dev/null
+++ b/klipper/history.h
@@ -0,0 +1,169 @@
+// -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8; -*-
+/* This file is part of the KDE project
+   Copyright (C) 2004  Esben Mose Hansen <kde@mosehansen.dk>
+   Copyright (C) Andrew Stanley-Jones
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.  If not, write to
+   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+#ifndef _HISTORY_H_
+#define _HISTORY_H_
+
+#include <qobject.h>
+#include <qptrlist.h>
+#include "historyitem.h"
+
+class KlipperPopup;
+class QPopupMenu;
+class QWidget;
+class QptrListIterator;
+
+class History : public QObject
+{
+    Q_OBJECT
+public:
+    History( QWidget* parent, const char* name );
+    ~History();
+    /**
+     * Iterator for history
+     */
+    typedef QPtrListIterator<HistoryItem> iterator;
+
+    /**
+     * Return (toplevel) popup menu (or default view, of you like)
+     */
+    KlipperPopup* popup();
+
+    /**
+     * Inserts item into clipboard history top
+     * if duplicate entry exist, the older duplicate is deleted.
+     * The duplicate concept is "deep", so that two text string
+     * are considerd duplicate if identical.
+     */
+    void insert( const HistoryItem* item );
+
+    /**
+     * Inserts item into clipboard without any checks
+     * Used when restoring a saved history and internally.
+     * Don't use this unless you're reasonable certain
+     * that no duplicates are introduced
+     */
+    void forceInsert( const HistoryItem* item );
+
+    /**
+     * Remove (first) history item equal to item from history
+     */
+    void remove( const HistoryItem* item  );
+
+    /**
+     * Traversal: Get first item
+     */
+    const HistoryItem* first();
+
+    /**
+     * Traversal: Get current item
+     */
+    const HistoryItem* next();
+
+    /**
+     * Get an iterator pointing to the first (most recent) item
+     * This iterator should probably be a constant iterator, but
+     * the QTL doesn't support this easily.
+     *
+     * Anyway, if you modify the items via. the iterator, call changed()
+     * when you're done. Calling changed() multiple times doesn't hurt.
+     *
+     * iterator could be made into a proxy class that did the right thing.
+     */
+    iterator youngest();
+
+    /**
+     * True if no history items
+     */
+    bool empty() const { return itemList.isEmpty(); }
+
+    /**
+     * Set maximum history size
+     */
+    void max_size( unsigned max_size );
+
+    /**
+     * Get the maximum history size
+     */
+    unsigned max_size() const { return m_max_size; }
+
+    /**
+     * returns true if the user has selected the top item
+     */
+    bool topIsUserSelected() {
+        return m_topIsUserSelected;
+    }
+
+public slots:
+    /**
+     * move the history in position pos to top
+     */
+    void slotMoveToTop(int pos );
+
+    /**
+     * Clear history
+     */
+    void slotClear();
+
+signals:
+    void changed();
+
+    /**
+     * Emitted when the first history item has changed.
+     */
+    void topChanged();
+
+private:
+
+    /**
+     * The history
+     */
+    QPtrList<HistoryItem> itemList;
+
+    /**
+     * ensure that the number of items does not exceed max_size()
+     * Deletes items from the end as neccessary.
+     */
+    void trim();
+
+private:
+    /**
+     * "Default view" --- a popupmenu containing the clipboard history.
+     */
+    KlipperPopup* m_popup;
+
+
+    /**
+     * The number of clipboard items stored.
+     */
+    unsigned m_max_size;
+
+    /**
+     * True if the top is selected by the user
+     */
+    bool m_topIsUserSelected;
+
+};
+
+inline const HistoryItem* History::first() { return itemList.first(); }
+
+inline const HistoryItem* History::next() { return itemList.next();  }
+
+#endif