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#include "UBGraphicsPolygonItem.h"
#include "frameworks/UBGeometryUtils.h"
#include "UBGraphicsScene.h"
UBGraphicsPolygonItem::UBGraphicsPolygonItem (QGraphicsItem * parent)
: QGraphicsPolygonItem(parent)
, mHasAlpha(false)
, mOriginalWidth(-1)
, mIsNominalLine(false)
, mStroke(0)
{
// NOOP
}
UBGraphicsPolygonItem::UBGraphicsPolygonItem (const QPolygonF & polygon, QGraphicsItem * parent)
: QGraphicsPolygonItem(polygon, parent)
, mOriginalWidth(-1)
, mIsNominalLine(false)
, mStroke(0)
{
// NOOP
}
UBGraphicsPolygonItem::UBGraphicsPolygonItem (const QLineF& pLine, qreal pWidth)
: QGraphicsPolygonItem(UBGeometryUtils::lineToPolygon(pLine, pWidth))
, mOriginalLine(pLine)
, mOriginalWidth(pWidth)
, mIsNominalLine(true)
, mStroke(0)
{
// NOOP
}
UBGraphicsPolygonItem::~UBGraphicsPolygonItem()
{
// NOOP
}
void UBGraphicsPolygonItem::setStroke(UBGraphicsStroke* stroke)
{
mStroke = stroke;
}
UBGraphicsStroke* UBGraphicsPolygonItem::stroke() const
{
return mStroke;
}
void UBGraphicsPolygonItem::setColor(const QColor& pColor)
{
QGraphicsPolygonItem::setBrush(QBrush(pColor));
if (pColor.alphaF() >= 1.0)
{
mHasAlpha = false;
setPen(Qt::NoPen);
}
else
{
mHasAlpha = true;
QColor penColor = pColor;
// trick QT antialiasing
// TODO UB 4.x see if we can do better ... it does not behave well with 16 bit color depth
qreal trickAlpha = pColor.alphaF();
if (trickAlpha >= 0.2 && trickAlpha < 0.6)
{
trickAlpha /= 12;
}
else if (trickAlpha < 0.8)
{
trickAlpha /= 5;
}
else if (trickAlpha < 1.0)
{
trickAlpha /= 2;
}
penColor.setAlphaF(trickAlpha);
QGraphicsPolygonItem::setPen(QPen(penColor));
}
}
QColor UBGraphicsPolygonItem::color() const
{
return QGraphicsPolygonItem::brush().color();
}
UBItem* UBGraphicsPolygonItem::deepCopy() const
{
UBGraphicsPolygonItem* copy = deepCopy(this->polygon());
copy->mOriginalLine = this->mOriginalLine;
copy->mOriginalWidth = this->mOriginalWidth;
copy->mIsNominalLine = this->mIsNominalLine;
return copy;
}
UBGraphicsPolygonItem* UBGraphicsPolygonItem::deepCopy(const QPolygonF& pol) const
{
UBGraphicsPolygonItem* copy = new UBGraphicsPolygonItem(pol);
copy->mOriginalLine = QLineF();
copy->mOriginalWidth = -1;
copy->mIsNominalLine = false;
copy->setStroke(this->stroke());
copy->setGroup(this->group());
copy->setBrush(this->brush());
copy->setPen(this->pen());
copy->mHasAlpha = this->mHasAlpha;
copy->setZValue(this->zValue());
copy->setColorOnDarkBackground(this->colorOnDarkBackground());
copy->setColorOnLightBackground(this->colorOnLightBackground());
copy->setData(UBGraphicsItemData::ItemLayerType, this->data(UBGraphicsItemData::ItemLayerType));
// TODO UB 4.7 ... complete all members ?
return copy;
}
void UBGraphicsPolygonItem::paint ( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget)
{
if(mHasAlpha && scene() && scene()->isLightBackground())
{
painter->setCompositionMode(QPainter::CompositionMode_Darken);
}
QGraphicsPolygonItem::paint(painter, option, widget);
}
UBGraphicsScene* UBGraphicsPolygonItem::scene()
{
return qobject_cast<UBGraphicsScene*>(QGraphicsPolygonItem::scene());
}