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OpenBoard/src/domain/UBGraphicsItemTransformUndo...

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/*
13 years ago
* 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 3 of the License, or
* (at your option) any later version.
*
13 years ago
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "UBGraphicsItemTransformUndoCommand.h"
#include "UBResizableGraphicsItem.h"
#include "domain/UBItem.h"
#include "core/memcheck.h"
UBGraphicsItemTransformUndoCommand::UBGraphicsItemTransformUndoCommand(QGraphicsItem* pItem,
const QPointF& prevPos, const QTransform& prevTransform, const qreal& prevZValue,
const QSizeF& prevSize)
{
mItem = pItem;
mPreviousTransform = prevTransform;
mCurrentTransform = pItem->transform();
mPreviousPosition = prevPos;
mCurrentPosition = pItem->pos();
mPreviousZValue = prevZValue;
mCurrentZValue = pItem->zValue();
mPreviousSize = prevSize;
UBResizableGraphicsItem* resizableItem = dynamic_cast<UBResizableGraphicsItem*>(pItem);
if (resizableItem)
mCurrentSize = resizableItem->size();
}
UBGraphicsItemTransformUndoCommand::~UBGraphicsItemTransformUndoCommand()
{
// NOOP
}
void UBGraphicsItemTransformUndoCommand::undo()
{
mItem->setPos(mPreviousPosition);
mItem->setTransform(mPreviousTransform);
mItem->setZValue(mPreviousZValue);
// UBGraphicsItem::assignZValue(mItem, mPreviousZValue);
UBResizableGraphicsItem* resizableItem = dynamic_cast<UBResizableGraphicsItem*>(mItem);
if (resizableItem)
resizableItem->resize(mPreviousSize);
}
void UBGraphicsItemTransformUndoCommand::redo()
{
mItem->setPos(mCurrentPosition);
mItem->setTransform(mCurrentTransform);
mItem->setZValue(mCurrentZValue);
// UBGraphicsItem::assignZValue(mItem, /*mCurrentZValue*/mItem->data(UBGraphicsItemData::ItemOwnZValue).toReal());
UBResizableGraphicsItem* resizableItem = dynamic_cast<UBResizableGraphicsItem*>(mItem);
if (resizableItem)
resizableItem->resize(mCurrentSize);
}