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/*
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* Copyright (C) 2013 Open Education Foundation
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*
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* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
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* l'Education Numérique en Afrique (GIP ENA)
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*
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* This file is part of OpenBoard.
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*
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* OpenBoard is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License,
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* with a specific linking exception for the OpenSSL project's
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* "OpenSSL" library (or with modified versions of it that use the
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* same license as the "OpenSSL" library).
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*
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* OpenBoard is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "UBGraphicsStrokesGroup.h"
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#include "domain/UBGraphicsPolygonItem.h"
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#include "core/memcheck.h"
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UBGraphicsStrokesGroup::UBGraphicsStrokesGroup(QGraphicsItem *parent)
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:QGraphicsItemGroup(parent), UBGraphicsItem()
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{
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setDelegate(new UBGraphicsItemDelegate(this, 0, GF_COMMON
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| GF_RESPECT_RATIO
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| GF_REVOLVABLE
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| GF_FLIPPABLE_ALL_AXIS));
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setData(UBGraphicsItemData::ItemLayerType, UBItemLayerType::Object);
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setUuid(QUuid::createUuid());
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setData(UBGraphicsItemData::itemLayerType, QVariant(itemLayerType::ObjectItem)); //Necessary to set if we want z value to be assigned correctly
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setFlag(QGraphicsItem::ItemSendsGeometryChanges, true);
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setFlag(QGraphicsItem::ItemIsSelectable, true);
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setFlag(QGraphicsItem::ItemIsMovable, true);
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}
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UBGraphicsStrokesGroup::~UBGraphicsStrokesGroup()
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{
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}
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void UBGraphicsStrokesGroup::setUuid(const QUuid &pUuid)
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{
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UBItem::setUuid(pUuid);
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setData(UBGraphicsItemData::ItemUuid, QVariant(pUuid)); //store item uuid inside the QGraphicsItem to fast operations with Items on the scene
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}
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void UBGraphicsStrokesGroup::setColor(const QColor &color, colorType pColorType)
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{
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//TODO Implement common mechanism of managing groups, drop UBGraphicsStroke if it's obsolete
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//Using casting for the moment
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foreach (QGraphicsItem *item, childItems()) {
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if (item->type() == UBGraphicsPolygonItem::Type) {
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UBGraphicsPolygonItem *curPolygon = static_cast<UBGraphicsPolygonItem *>(item);
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switch (pColorType) {
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case currentColor :
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curPolygon->setColor(color);
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break;
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case colorOnLightBackground :
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curPolygon->setColorOnLightBackground(color);
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break;
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case colorOnDarkBackground :
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curPolygon->setColorOnDarkBackground(color);
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break;
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}
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}
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}
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}
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QColor UBGraphicsStrokesGroup::color(colorType pColorType) const
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{
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QColor result;
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foreach (QGraphicsItem *item, childItems()) {
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if (item->type() == UBGraphicsPolygonItem::Type) {
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UBGraphicsPolygonItem *curPolygon = static_cast<UBGraphicsPolygonItem *>(item);
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switch (pColorType) {
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case currentColor :
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result = curPolygon->color();
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break;
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case colorOnLightBackground :
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result = curPolygon->colorOnLightBackground();
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break;
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case colorOnDarkBackground :
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result = curPolygon->colorOnDarkBackground();
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break;
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}
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}
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}
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return result;
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}
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void UBGraphicsStrokesGroup::mousePressEvent(QGraphicsSceneMouseEvent *event)
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{
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if (Delegate()->mousePressEvent(event))
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{
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//NOOP
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}
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else
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{
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// QGraphicsItemGroup::mousePressEvent(event);
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}
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}
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void UBGraphicsStrokesGroup::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
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{
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if (Delegate()->mouseMoveEvent(event))
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{
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// NOOP;
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}
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else
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{
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QGraphicsItemGroup::mouseMoveEvent(event);
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}
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}
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void UBGraphicsStrokesGroup::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
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{
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Delegate()->mouseReleaseEvent(event);
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QGraphicsItemGroup::mouseReleaseEvent(event);
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}
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UBItem* UBGraphicsStrokesGroup::deepCopy() const
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{
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UBGraphicsStrokesGroup* copy = new UBGraphicsStrokesGroup();
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QTransform groupTransform = transform();
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const_cast<UBGraphicsStrokesGroup*>(this)->resetTransform();
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QList<QGraphicsItem*> chl = childItems();
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foreach(QGraphicsItem *child, chl)
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{
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UBGraphicsPolygonItem *polygon = dynamic_cast<UBGraphicsPolygonItem*>(child);
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if (polygon){
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UBGraphicsPolygonItem *polygonCopy = dynamic_cast<UBGraphicsPolygonItem*>(polygon->deepCopy());
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if (polygonCopy)
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{
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QGraphicsItem* pItem = dynamic_cast<QGraphicsItem*>(polygonCopy);
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copy->addToGroup(pItem);
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polygonCopy->setStrokesGroup(copy);
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}
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}
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}
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const_cast<UBGraphicsStrokesGroup*>(this)->setTransform(groupTransform);
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copyItemParameters(copy);
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return copy;
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}
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void UBGraphicsStrokesGroup::copyItemParameters(UBItem *copy) const
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{
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QGraphicsItem *cp = dynamic_cast<QGraphicsItem*>(copy);
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if(NULL != cp)
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{
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cp->setTransform(transform());
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cp->setFlag(QGraphicsItem::ItemIsMovable, true);
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cp->setFlag(QGraphicsItem::ItemIsSelectable, true);
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cp->setData(UBGraphicsItemData::ItemLayerType, this->data(UBGraphicsItemData::ItemLayerType));
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cp->setData(UBGraphicsItemData::ItemLocked, this->data(UBGraphicsItemData::ItemLocked));
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}
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}
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void UBGraphicsStrokesGroup::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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// Never draw the rubber band, we draw our custom selection with the DelegateFrame
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QStyleOptionGraphicsItem styleOption = QStyleOptionGraphicsItem(*option);
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QStyle::State svState = option->state;
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styleOption.state &= ~QStyle::State_Selected;
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QGraphicsItemGroup::paint(painter, &styleOption, widget);
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//Restoring state
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styleOption.state |= svState;
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Delegate()->postpaint(painter, &styleOption, widget);
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}
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QVariant UBGraphicsStrokesGroup::itemChange(GraphicsItemChange change, const QVariant &value)
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{
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QVariant newValue = Delegate()->itemChange(change, value);
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return QGraphicsItemGroup::itemChange(change, newValue);
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}
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QPainterPath UBGraphicsStrokesGroup::shape() const
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{
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QPainterPath path;
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if (isSelected())
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{
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path.addRect(boundingRect());
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}
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else
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{
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foreach(QGraphicsItem* item, childItems())
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{
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path.addPath(item->shape());
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}
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}
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return path;
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}
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