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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 "UBGraphicsItemGroupUndoCommand.h"
#include "UBGraphicsGroupContainerItem.h"
#include "UBGraphicsScene.h"
#include "core/memcheck.h"
UBGraphicsItemGroupUndoCommand::UBGraphicsItemGroupUndoCommand(UBGraphicsScene *pScene, UBGraphicsGroupContainerItem *pGroupCreated) : UBUndoCommand()
, mScene (pScene)
, mGroup(pGroupCreated)
, mFirstRedo(true)
{
if (pGroupCreated->childItems().count()) {
foreach (QGraphicsItem *item, pGroupCreated->childItems()) {
mItems << item;
}
}
}
UBGraphicsItemGroupUndoCommand::~UBGraphicsItemGroupUndoCommand()
{
}
void UBGraphicsItemGroupUndoCommand::undo()
{
mGroup->destroy(false);
foreach(QGraphicsItem *item, mItems) {
item->setSelected(true);
}
}
void UBGraphicsItemGroupUndoCommand::redo()
{
if (mFirstRedo) {
//Work around. TODO determine why does Qt call the redo function on pushing to undo
mFirstRedo = false;
return;
}
foreach (QGraphicsItem *item, mItems) {
if (item->type() == UBGraphicsGroupContainerItem::Type) {
QList<QGraphicsItem*> childItems = item->childItems();
UBGraphicsGroupContainerItem *currentGroup = dynamic_cast<UBGraphicsGroupContainerItem*>(item);
if (currentGroup) {
currentGroup->destroy(false);
}
foreach (QGraphicsItem *chItem, childItems) {
mGroup->addToGroup(chItem);
}
} else {
mGroup->addToGroup(item);
}
}
mScene->addItem(mGroup);
mGroup->setVisible(true);
mGroup->setFocus();
mGroup->setSelected(true);
}