/*
* Copyright (C) 2015-2016 Département de l'Instruction Publique (DIP-SEM)
*
* 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 .
*/
#include "UBGraphicsItemTransformUndoCommand.h"
#include "UBResizableGraphicsItem.h"
#include "domain/UBItem.h"
#include "domain/UBGraphicsScene.h"
#include "core/memcheck.h"
UBGraphicsItemTransformUndoCommand::UBGraphicsItemTransformUndoCommand(QGraphicsItem* pItem,
const QPointF& prevPos, const QTransform& prevTransform, const qreal& prevZValue,
const QSizeF& prevSize, bool setToBackground)
: UBUndoCommand()
{
mItem = pItem;
mPreviousTransform = prevTransform;
mCurrentTransform = pItem->transform();
mPreviousPosition = prevPos;
mCurrentPosition = pItem->pos();
mPreviousZValue = prevZValue;
mCurrentZValue = pItem->zValue();
mPreviousSize = prevSize;
UBResizableGraphicsItem* resizableItem = dynamic_cast(pItem);
if (resizableItem)
mCurrentSize = resizableItem->size();
mSetToBackground = setToBackground;
}
UBGraphicsItemTransformUndoCommand::~UBGraphicsItemTransformUndoCommand()
{
// NOOP
}
void UBGraphicsItemTransformUndoCommand::undo()
{
if (mSetToBackground) {
UBGraphicsScene* scene = dynamic_cast(mItem->scene());
if (scene && scene->isBackgroundObject(mItem)) {
scene->unsetBackgroundObject();
}
}
mItem->setPos(mPreviousPosition);
mItem->setTransform(mPreviousTransform);
mItem->setZValue(mPreviousZValue);
UBResizableGraphicsItem* resizableItem = dynamic_cast(mItem);
if (resizableItem)
resizableItem->resize(mPreviousSize);
}
void UBGraphicsItemTransformUndoCommand::redo()
{
if (mSetToBackground) {
UBGraphicsScene* scene = dynamic_cast(mItem->scene());
if (scene)
scene->setAsBackgroundObject(mItem);
}
mItem->setPos(mCurrentPosition);
mItem->setTransform(mCurrentTransform);
mItem->setZValue(mCurrentZValue);
UBResizableGraphicsItem* resizableItem = dynamic_cast(mItem);
if (resizableItem)
resizableItem->resize(mCurrentSize);
}