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**
** This file is part of the LibreCAD project, a 2D CAD program
**
** Copyright (C) 2018 A. Stebich (librecad@mail.lordofbikes.de)
** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
**
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file gpl-2.0.txt included in the
** packaging of this file.
**
** 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
**
** This copyright notice MUST APPEAR in all copies of the script!
**
**********************************************************************/
#include <ostream>
#include "rs_undocycle.h"
#include "rs_entity.h"
class RS_Entity;
/**
* Adds an Undoable to this Undo Cycle. Every Cycle can contain one or
* more Undoables.
*/
void RS_UndoCycle::addUndoable(RS_Undoable* u) {
if (u != nullptr)
undoables.insert(u);
}
/**
* Removes an undoable from the list.
*/
void RS_UndoCycle::removeUndoable(RS_Undoable* u) {
if (u != nullptr)
undoables.erase(u);
}
/**
* Return number of undoables in cycle
*/
size_t RS_UndoCycle::size() const
{
return undoables.size();
}
bool RS_UndoCycle::empty() const
{
return undoables.empty();
}
void RS_UndoCycle::changeUndoState()
{
for (RS_Undoable* u: undoables)
u->changeUndoState();
}
std::set<RS_Undoable*> const& RS_UndoCycle::getUndoables() const
{
return undoables;
}
std::ostream& operator << (std::ostream& os,
RS_UndoCycle& uc) {
os << " Undo item: " << "\n";
//os << " Type: ";
/*switch (i.type) {
case RS2::UndoAdd:
os << "RS2::UndoAdd";
break;
case RS2::UndoDel:
os << "RS2::UndoDel";
break;
}*/
os << " Undoable ids: ";
for (auto u: uc.undoables) {
if (u->undoRtti()==RS2::UndoableEntity) {
auto e = static_cast<RS_Entity*>(u);
os << e->getId() << (u->isUndone() ? "*" : "") << " ";
} else {
os << "|";
}
}
return os;
}
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