KoCommandHistory.h

/* This file is part of the KDE project
   Copyright (C) 2000 Werner Trobin <trobin@kde.org>
   Copyright (C) 2000 David Faure <faure@kde.org>
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
 
   This library 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
   Library General Public License for more details.
 
   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/
 
#ifndef kocommandhistory_h
#define kocommandhistory_h
 
#include <tqptrlist.h>
#include <tqstring.h>
#include <tqobject.h>
#include <koffice_export.h>
 
class TDEAction;
class TDEActionCollection;
class TQPopupMenu;
class KCommand;
#include <tqlistbox.h>
 
class KoListBox : public TQListBox {
    TQ_OBJECT
  
public:
    KoListBox( TQWidget *parent = 0, const char *name = 0, WFlags f = 0 );
protected:
    virtual void contentsMouseMoveEvent ( TQMouseEvent * );
    virtual TQSize sizeHint() const;
signals:
    void changeNumberOfSelectedItem( int );
};
 
class KOFFICEUI_EXPORT KoCommandHistory : public TQObject {
    TQ_OBJECT
  
public:
    KoCommandHistory();
 
    KoCommandHistory(TDEActionCollection *actionCollection, bool withMenus = true);
 
    virtual ~KoCommandHistory();
 
    void clear();
 
    void addCommand(KCommand *command, bool execute=true);
 
    int undoLimit() const { return m_undoLimit; }
    void setUndoLimit(int limit);
    int redoLimit() const { return m_redoLimit; }
    void setRedoLimit(int limit);
 
    void updateActions();
 
    KCommand * presentCommand();
 
public slots:
    virtual void undo();
    virtual void redo();
    virtual void documentSaved();
 
protected slots:
    void slotUndoAboutToShow();
    void slotUndoActivated( int );
    void slotRedoAboutToShow();
    void slotRedoActivated( int );
    void slotUndoActivated( TQListBoxItem *);
    void slotRedoActivated( TQListBoxItem *);
    void slotChangeRedoNumberOfSelectedItem( int );
    void slotChangeUndoNumberOfSelectedItem( int );
signals:
    void commandExecuted();
 
    void commandExecuted(KCommand *cmd);
 
    void documentRestored();
 
private:
    void clipCommands();  // ensures that the limits are kept
 
    TQPtrList<KCommand> m_commands;
    TDEAction *m_undo, *m_redo;
    TQPopupMenu *m_undoPopup, *m_redoPopup;
    int m_undoLimit, m_redoLimit;
    bool m_first;  // attention: it's the first command in the list!
protected:
    virtual void virtual_hook( int id, void* data );
private:
    class KoCommandHistoryPrivate;
    KoCommandHistoryPrivate *d;
};
 
#endif