aseprite/src/objects_container_impl.cpp
David Capello 8e5c950df8 Refactored the entire Undo system in several layers.
+ Added "undo" library (undo namespace).
+ Moved UndoHistory to undo namespace.
+ Added Undoer and UndoersCollector interfaces.
+ Converted old UndoStream to UndoersStack class.
+ Added new "undoers" namespace and moved each Undoer implementation
  (classes to undo different actions) to "undoers" directory.
+ Added IO operations to "raster" objects (image, cel, layer, palette,
  mask).
2011-03-26 17:40:55 -03:00

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/* ASE - Allegro Sprite Editor
* Copyright (C) 2001-2011 David Capello
*
* 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; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "objects_container_impl.h"
using namespace undo;
ObjectsContainerImpl::ObjectsContainerImpl()
{
m_idCounter = 0;
}
ObjectsContainerImpl::~ObjectsContainerImpl()
{
}
ObjectId ObjectsContainerImpl::addObject(void* object)
{
// First we check if the object is already in the container.
std::map<void*, ObjectId>::iterator it = m_ptrToId.find(object);
if (it != m_ptrToId.end())
return it->second; // So we return the already assigned ID
// In other case we add the new object
ObjectId id = ++m_idCounter;
m_idToPtr[id] = object;
m_ptrToId[object] = id;
return id;
}
void ObjectsContainerImpl::insertObject(ObjectId id, void* object)
{
std::map<ObjectId, void*>::iterator it1 = m_idToPtr.find(id);
if (it1 != m_idToPtr.end()) {
ASSERT(false && "You've inserted two times the same object");
throw ExistentObjectException();
}
std::map<void*, ObjectId>::iterator it2 = m_ptrToId.find(object);
if (it2 != m_ptrToId.end()) {
ASSERT(false && "You've inserted two times the same object");
throw ExistentObjectException();
}
m_idToPtr[id] = object;
m_ptrToId[object] = id;
}
void ObjectsContainerImpl::removeObject(ObjectId id)
{
std::map<ObjectId, void*>::iterator it1 = m_idToPtr.find(id);
if (it1 == m_idToPtr.end()) {
ASSERT(false && "You want to remove a non-existent object");
throw ObjectNotFoundException();
}
void* ptr = it1->second;
std::map<void*, ObjectId>::iterator it2 = m_ptrToId.find(ptr);
if (it2 == m_ptrToId.end()) {
ASSERT(false && "You want to remove a non-existent object");
throw ObjectNotFoundException();
}
m_idToPtr.erase(it1);
m_ptrToId.erase(it2);
}
void* ObjectsContainerImpl::getObject(ObjectId id)
{
std::map<ObjectId, void*>::iterator it = m_idToPtr.find(id);
if (it == m_idToPtr.end()) {
ASSERT(false && "You want to get information about a non-existent object");
throw ObjectNotFoundException();
}
return it->second;
}