/*
* 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 "UBGraphicsStrokesGroup.h"
#include "domain/UBGraphicsPolygonItem.h"
#include "core/memcheck.h"
UBGraphicsStrokesGroup::UBGraphicsStrokesGroup(QGraphicsItem *parent)
:QGraphicsItemGroup(parent), UBGraphicsItem()
{
setDelegate(new UBGraphicsItemDelegate(this, 0, GF_COMMON
| GF_RESPECT_RATIO
| GF_REVOLVABLE
| GF_FLIPPABLE_ALL_AXIS));
setData(UBGraphicsItemData::ItemLayerType, UBItemLayerType::Object);
setUuid(QUuid::createUuid());
setData(UBGraphicsItemData::itemLayerType, QVariant(itemLayerType::ObjectItem)); //Necessary to set if we want z value to be assigned correctly
setFlag(QGraphicsItem::ItemSendsGeometryChanges, true);
setFlag(QGraphicsItem::ItemIsSelectable, true);
setFlag(QGraphicsItem::ItemIsMovable, true);
}
UBGraphicsStrokesGroup::~UBGraphicsStrokesGroup()
{
}
void UBGraphicsStrokesGroup::setUuid(const QUuid &pUuid)
{
UBItem::setUuid(pUuid);
setData(UBGraphicsItemData::ItemUuid, QVariant(pUuid)); //store item uuid inside the QGraphicsItem to fast operations with Items on the scene
}
void UBGraphicsStrokesGroup::setColor(const QColor &color, colorType pColorType)
{
//TODO Implement common mechanism of managing groups, drop UBGraphicsStroke if it's obsolete
//Using casting for the moment
foreach (QGraphicsItem *item, childItems()) {
if (item->type() == UBGraphicsPolygonItem::Type) {
UBGraphicsPolygonItem *curPolygon = static_cast(item);
switch (pColorType) {
case currentColor :
curPolygon->setColor(color);
break;
case colorOnLightBackground :
curPolygon->setColorOnLightBackground(color);
break;
case colorOnDarkBackground :
curPolygon->setColorOnDarkBackground(color);
break;
}
}
}
}
QColor UBGraphicsStrokesGroup::color(colorType pColorType) const
{
QColor result;
foreach (QGraphicsItem *item, childItems()) {
if (item->type() == UBGraphicsPolygonItem::Type) {
UBGraphicsPolygonItem *curPolygon = static_cast(item);
switch (pColorType) {
case currentColor :
result = curPolygon->color();
break;
case colorOnLightBackground :
result = curPolygon->colorOnLightBackground();
break;
case colorOnDarkBackground :
result = curPolygon->colorOnDarkBackground();
break;
}
}
}
return result;
}
void UBGraphicsStrokesGroup::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
if (Delegate()->mousePressEvent(event))
{
//NOOP
}
else
{
// QGraphicsItemGroup::mousePressEvent(event);
}
}
void UBGraphicsStrokesGroup::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
{
if (Delegate()->mouseMoveEvent(event))
{
// NOOP;
}
else
{
QGraphicsItemGroup::mouseMoveEvent(event);
}
}
void UBGraphicsStrokesGroup::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
Delegate()->mouseReleaseEvent(event);
QGraphicsItemGroup::mouseReleaseEvent(event);
}
UBItem* UBGraphicsStrokesGroup::deepCopy() const
{
UBGraphicsStrokesGroup* copy = new UBGraphicsStrokesGroup();
QTransform groupTransform = transform();
const_cast(this)->resetTransform();
QList chl = childItems();
foreach(QGraphicsItem *child, chl)
{
UBGraphicsPolygonItem *polygon = dynamic_cast(child);
if (polygon){
UBGraphicsPolygonItem *polygonCopy = dynamic_cast(polygon->deepCopy());
if (polygonCopy)
{
QGraphicsItem* pItem = dynamic_cast(polygonCopy);
copy->addToGroup(pItem);
polygonCopy->setStrokesGroup(copy);
}
}
}
const_cast(this)->setTransform(groupTransform);
copyItemParameters(copy);
return copy;
}
void UBGraphicsStrokesGroup::copyItemParameters(UBItem *copy) const
{
QGraphicsItem *cp = dynamic_cast(copy);
if(NULL != cp)
{
cp->setTransform(transform());
cp->setFlag(QGraphicsItem::ItemIsMovable, true);
cp->setFlag(QGraphicsItem::ItemIsSelectable, true);
cp->setData(UBGraphicsItemData::ItemLayerType, this->data(UBGraphicsItemData::ItemLayerType));
cp->setData(UBGraphicsItemData::ItemLocked, this->data(UBGraphicsItemData::ItemLocked));
}
}
void UBGraphicsStrokesGroup::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
// Never draw the rubber band, we draw our custom selection with the DelegateFrame
QStyleOptionGraphicsItem styleOption = QStyleOptionGraphicsItem(*option);
QStyle::State svState = option->state;
styleOption.state &= ~QStyle::State_Selected;
QGraphicsItemGroup::paint(painter, &styleOption, widget);
//Restoring state
styleOption.state |= svState;
Delegate()->postpaint(painter, &styleOption, widget);
}
QVariant UBGraphicsStrokesGroup::itemChange(GraphicsItemChange change, const QVariant &value)
{
QVariant newValue = Delegate()->itemChange(change, value);
return QGraphicsItemGroup::itemChange(change, newValue);
}
QPainterPath UBGraphicsStrokesGroup::shape() const
{
QPainterPath path;
if (isSelected())
{
path.addRect(boundingRect());
}
else
{
foreach(QGraphicsItem* item, childItems())
{
path.addPath(item->shape());
}
}
return path;
}