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/*
* Copyright (C) 2013 Open Education Foundation
*
* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
* l'Education Numérique en Afrique (GIP ENA)
*
* This file is part of OpenBoard.
*
* OpenBoard 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, version 3 of the License,
* with a specific linking exception for the OpenSSL project's
* "OpenSSL" library (or with modified versions of it that use the
* same license as the "OpenSSL" library).
*
* OpenBoard 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 OpenBoard. If not, see <http://www.gnu.org/licenses/>.
*/
#include "UBPageSizeUndoCommand.h"
#include <QtGui>
#include "core/UBApplication.h"
#include "board/UBBoardController.h"
#include "UBGraphicsScene.h"
#include "core/memcheck.h"
UBPageSizeUndoCommand::UBPageSizeUndoCommand(UBGraphicsScene* pScene, const QSize& previousSize, const QSize& newSize)
: mScene(pScene)
, mPreviousSize(previousSize)
, mNewSize(newSize)
{
mFirstRedo = true;
}
UBPageSizeUndoCommand::~UBPageSizeUndoCommand()
{
//NOOP
}
void UBPageSizeUndoCommand::undo()
{
if (!mScene){
return;
}
UBApplication::boardController->setPageSize(mPreviousSize);
// force refresh, QT is a bit lazy and take a lot of time (nb item ^2 ?) to trigger repaint
mScene->update(mScene->sceneRect());
}
void UBPageSizeUndoCommand::redo()
{
// the Undo framework calls a redo while appending the undo command.
// as we have already plotted the elements, we do not want to do it twice
if (!mFirstRedo)
{
if (!mScene){
return;
}
UBApplication::boardController->setPageSize(mNewSize);
// force refresh, QT is a bit lazy and take a lot of time (nb item ^2) to trigger repaint
mScene->update(mScene->sceneRect());
}
else
{
mFirstRedo = false;
}
}