+++ /dev/null
-/*
-Copyright (C) 2001-2006, William Joseph.
-All Rights Reserved.
-
-This file is part of GtkRadiant.
-
-GtkRadiant 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.
-
-GtkRadiant 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 GtkRadiant; if not, write to the Free Software
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-*/
-
-#if !defined (INCLUDED_UNDOLIB_H)
-#define INCLUDED_UNDOLIB_H
-
-#include "iundo.h"
-#include "mapfile.h"
-#include "warnings.h"
-#include "generic/callback.h"
-
-template<typename Copyable>
-class BasicUndoMemento : public UndoMemento
-{
- Copyable m_data;
-public:
- BasicUndoMemento(const Copyable& data)
- : m_data(data)
- {
- }
-
- void release()
- {
- delete this;
- }
-
- const Copyable& get() const
- {
- return m_data;
- }
-};
-
-
-template<typename Copyable>
-class ObservedUndoableObject : public Undoable
-{
- typedef Callback1<const Copyable&> ImportCallback;
-
- Copyable& m_object;
- ImportCallback m_importCallback;
- UndoObserver* m_undoQueue;
- MapFile* m_map;
-public:
-
- ObservedUndoableObject<Copyable>(Copyable& object, const ImportCallback& importCallback)
- : m_object(object), m_importCallback(importCallback), m_undoQueue(0), m_map(0)
- {
- }
- ~ObservedUndoableObject()
- {
- }
-
- MapFile* map()
- {
- return m_map;
- }
-
- void instanceAttach(MapFile* map)
- {
- m_map = map;
- m_undoQueue = GlobalUndoSystem().observer(this);
- }
- void instanceDetach(MapFile* map)
- {
- m_map = 0;
- m_undoQueue = 0;
- GlobalUndoSystem().release(this);
- }
-
- void save()
- {
- if(m_map != 0)
- {
- m_map->changed();
- }
- if(m_undoQueue != 0)
- {
- m_undoQueue->save(this);
- }
- }
-
- UndoMemento* exportState() const
- {
- return new BasicUndoMemento<Copyable>(m_object);
- }
- void importState(const UndoMemento* state)
- {
- save();
- m_importCallback((static_cast<const BasicUndoMemento<Copyable>*>(state))->get());
- }
-};
-
-template<typename Copyable>
-class UndoableObject : public Undoable
-{
- Copyable& m_object;
- UndoObserver* m_undoQueue;
- MapFile* m_map;
-
-public:
- UndoableObject(Copyable& object)
- : m_object(object), m_undoQueue(0), m_map(0)
- {}
- ~UndoableObject()
- {
- }
-
- void instanceAttach(MapFile* map)
- {
- m_map = map;
- m_undoQueue = GlobalUndoSystem().observer(this);
- }
- void instanceDetach(MapFile* map)
- {
- m_map = 0;
- m_undoQueue = 0;
- GlobalUndoSystem().release(this);
- }
-
- void save()
- {
- if(m_map != 0)
- {
- m_map->changed();
- }
- if(m_undoQueue != 0)
- {
- m_undoQueue->save(this);
- }
- }
-
- UndoMemento* exportState() const
- {
- return new BasicUndoMemento<Copyable>(m_object);
- }
- void importState(const UndoMemento* state)
- {
- save();
- m_object = (static_cast<const BasicUndoMemento<Copyable>*>(state))->get();
- }
-};
-
-#endif