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/*
* 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.
*
* 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/>.
*/
#ifndef UBGRAPHICSPOLYGONITEM_H
#define UBGRAPHICSPOLYGONITEM_H
#include <QtGui>
#include "core/UB.h"
#include "UBItem.h"
class UBItem;
class UBGraphicsScene;
class UBGraphicsStroke;
class UBGraphicsPolygonItem : public QGraphicsPolygonItem, public UBItem
{
public:
UBGraphicsPolygonItem(QGraphicsItem * parent = 0 );
UBGraphicsPolygonItem(const QLineF& line, qreal pWidth);
UBGraphicsPolygonItem(const QPolygonF & polygon, QGraphicsItem * parent = 0);
~UBGraphicsPolygonItem();
void setColor(const QColor& color);
QColor color() const;
virtual UBGraphicsScene* scene();
inline void subtract(UBGraphicsPolygonItem *pi)
{
if (boundingRect().intersects(pi->boundingRect()))
{
QPolygonF subtractedPolygon = polygon().subtracted(pi->polygon());
if (polygon() != subtractedPolygon)
{
mIsNominalLine = false;
QGraphicsPolygonItem::setPolygon(subtractedPolygon);
}
}
}
inline void subtractIntersecting(UBGraphicsPolygonItem *pi)
{
QPolygonF subtractedPolygon = polygon().subtracted(pi->polygon());
if (polygon() != subtractedPolygon)
{
mIsNominalLine = false;
QGraphicsPolygonItem::setPolygon(subtractedPolygon);
}
}
enum { Type = UBGraphicsItemType::PolygonItemType };
virtual int type() const
{
return Type;
}
void setPolygon(const QPolygonF pPolygon)
{
mIsNominalLine = false;
QGraphicsPolygonItem::setPolygon(pPolygon);
}
virtual UBItem* deepCopy() const;
// optimisation (eraser)
UBGraphicsPolygonItem* deepCopy(const QPolygonF& pol) const;
QLineF originalLine() { return mOriginalLine;}
qreal originalWidth() { return mOriginalWidth;}
bool isNominalLine() {return mIsNominalLine;}
QColor colorOnDarkBackground() const
{
return mColorOnDarkBackground;
}
void setColorOnDarkBackground(QColor pColorOnDarkBackground)
{
mColorOnDarkBackground = pColorOnDarkBackground;
}
QColor colorOnLightBackground() const
{
return mColorOnLightBackground;
}
void setColorOnLightBackground(QColor pColorOnLightBackground)
{
mColorOnLightBackground = pColorOnLightBackground;
}
void setStroke(UBGraphicsStroke* stroke);
UBGraphicsStroke* stroke() const;
protected:
void paint ( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget);
private:
void clearStroke();
bool mHasAlpha;
QLineF mOriginalLine;
qreal mOriginalWidth;
bool mIsNominalLine;
QColor mColorOnDarkBackground;
QColor mColorOnLightBackground;
UBGraphicsStroke* mStroke;
};
#endif // UBGRAPHICSPOLYGONITEM_H