#include "geographicspixmapitem.h"
#include "../qtviewer_planetosm/osmtiles/viewer_interface.h"
#include <assert.h>
#include <math.h>
#include <QGraphicsSceneMouseEvent>
#include <QMessageBox>
#include "geographicsscene.h"
#include "qtvplugin_geomarker.h"
namespace QTVP_GEOMARKER{
	geoGraphicsPixmapItem::geoGraphicsPixmapItem(QString name,QTVOSM::viewer_interface * pVi
												 ,const tag_icon * pIcon,
												 qreal lat/* = 90*/,
												 qreal lon/* = 0*/)
		:QGraphicsPixmapItem (0)
		,geoItemBase(name,ITEAMTYPE_PIXMAP,pVi)
		,m_lat(lat)
		,m_lon(lon)
		,m_pIcon(pIcon)

	{
		assert(vi()!=0);
		this->setShapeMode(QGraphicsPixmapItem::BoundingRectShape);
		double px,py;
		vi()->CV_LLA2World(m_lat,m_lon,&px,&py);
		setOffset(px - m_pIcon->centerx, py - m_pIcon->centery);
		QGraphicsPixmapItem::setPixmap(m_pIcon->icon);
		QGraphicsPixmapItem::setTransformOriginPoint(px,py);
		QGraphicsPixmapItem::setTransformationMode(Qt::FastTransformation );
	}
	void geoGraphicsPixmapItem::adjust_coords(int ncurrLevel)
	{
		if (vi() && ncurrLevel != level())
		{
			/** Since the map is zooming from level() to current level,
			 * the map size zoom ratio can be calculated using pow below.
			 * We can get new coord for current zoom level by multiplicative.
			*/
			double ratio = pow(2.0,(ncurrLevel - level()));
			QPointF offset = this->offset();
			double oldlefttop_x = offset.x() + m_pIcon->centerx;
			double oldlefttop_y = offset.y() + m_pIcon->centery;
			setOffset(oldlefttop_x*ratio - m_pIcon->centerx, oldlefttop_y*ratio - m_pIcon->centery);
			QGraphicsPixmapItem::setTransformOriginPoint(oldlefttop_x*ratio, oldlefttop_y*ratio );
		}
	}
	void geoGraphicsPixmapItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget /*= nullptr*/)
	{
		if (vi())
		{
			const int cv = vi()->level();
			if (cv!=level())
			{
				adjust_coords(cv);
				setLevel(cv);
			}
		}

		QGraphicsPixmapItem::paint(painter,option,widget);
	}
	QRectF geoGraphicsPixmapItem::boundingRect() const
	{
		QRectF rect = QGraphicsPixmapItem::boundingRect();
		auto v = vi();
		if (v && v->level()!=level())
		{
			double ratio = pow(2.0,(v->level() - level()));
			QPointF center = rect.center();
			rect.setRect(center.x() * ratio - rect.width()/2,
					center.y() * ratio - rect.height()/2,
					rect.width(),
					rect.height());
		}
		return rect;
	}

	void geoGraphicsPixmapItem::setPixmap(const tag_icon &icon)
	{
		this->m_pIcon = &icon;
		QGraphicsPixmapItem::setPixmap(icon.icon);

		double px,py;
		vi()->CV_LLA2World(m_lat,m_lon,&px,&py);
		setOffset(px - m_pIcon->centerx, py - m_pIcon->centery);
		QGraphicsPixmapItem::setTransformOriginPoint(px, py);
	}
	void geoGraphicsPixmapItem::hoverEnterEvent(QGraphicsSceneHoverEvent * event)
	{
		QGraphicsPixmapItem::hoverEnterEvent(event);
		//this->show_props(true);
		//post enent
		QMap<QString, QVariant > map_evt;
		geoGraphicsScene * pscene = dynamic_cast<geoGraphicsScene *>(this->scene());
		if (pscene)
		{
			QObject * pPlg = pscene->parent();
			if (pPlg)
			{
				qtvplugin_geomarker * pMarker = dynamic_cast<qtvplugin_geomarker *>(pPlg) ;
				if (pMarker)
				{
					map_evt["source"] = pMarker->get_name();
					map_evt["destin"] = "ALL";
					map_evt["name"] = "ITEM_MOUSE_ENTER";
					map_evt["id"] = this->item_name();
					vi()->post_event(map_evt);
				}
			}

		}
	}

	void geoGraphicsPixmapItem::hoverLeaveEvent(QGraphicsSceneHoverEvent * event)
	{
		QGraphicsPixmapItem::hoverLeaveEvent(event);
		//this->show_props(false);
		//post enent
		QMap<QString, QVariant > map_evt;
		geoGraphicsScene * pscene = dynamic_cast<geoGraphicsScene *>(this->scene());
		if (pscene)
		{
			QObject * pPlg = pscene->parent();
			if (pPlg)
			{
				qtvplugin_geomarker * pMarker = dynamic_cast<qtvplugin_geomarker *>(pPlg) ;
				if (pMarker)
				{
					map_evt["source"] = pMarker->get_name();
					map_evt["destin"] = "ALL";
					map_evt["name"] = "ITEM_MOUSE_LEAVE";
					map_evt["id"] = this->item_name();
					vi()->post_event(map_evt);
				}
			}

		}
	}
	void geoGraphicsPixmapItem::setGeo(qreal cent_lat,qreal cent_lon)
	{
		m_lat = cent_lat;
		m_lon = cent_lon;
		double px,py;
		vi()->CV_LLA2World(cent_lat,cent_lon,&px,&py);
		setOffset(px - m_pIcon->centerx, py - m_pIcon->centery);
		QGraphicsPixmapItem::setTransformOriginPoint(px, py);
		adjustLabelPos();
	}
	void geoGraphicsPixmapItem::mousePressEvent(QGraphicsSceneMouseEvent * event)
	{
		QGraphicsPixmapItem ::mousePressEvent(event);
		//if (wantMouseHoverEvent()==false)
		{
			bool bshow = this->props_visible();
			this->show_props(!bshow);
		}
		//post enent
		QMap<QString, QVariant > map_evt;
		geoGraphicsScene * pscene = dynamic_cast<geoGraphicsScene *>(this->scene());
		if (pscene)
		{
			QObject * pPlg = pscene->parent();
			if (pPlg)
			{
				qtvplugin_geomarker * pMarker = dynamic_cast<qtvplugin_geomarker *>(pPlg) ;
				if (pMarker)
				{
					map_evt["source"] = pMarker->get_name();
					map_evt["destin"] = "ALL";
					if (event->buttons() & Qt::LeftButton)
						map_evt["name"] = "ITEM_LBUTTON_CLICKED";
					else if (event->buttons() & Qt::RightButton)
						map_evt["name"] = "ITEM_RBUTTON_CLICKED";
					else if (event->buttons() & Qt::MidButton)
						map_evt["name"] = "ITEM_MBUTTON_CLICKED";
					else
						map_evt["name"] = "ITEM_BUTTON_CLICKED";
					map_evt["id"] = this->item_name();
					vi()->post_event(map_evt);
				}
			}

		}
	}

	void geoGraphicsPixmapItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent * event)
	{
		QGraphicsPixmapItem ::mouseDoubleClickEvent(event);
		//post enent
		QMap<QString, QVariant > map_evt;
		geoGraphicsScene * pscene = dynamic_cast<geoGraphicsScene *>(this->scene());
		if (pscene)
		{
			QObject * pPlg = pscene->parent();
			if (pPlg)
			{
				qtvplugin_geomarker * pMarker = dynamic_cast<qtvplugin_geomarker *>(pPlg) ;
				if (pMarker)
				{
					map_evt["source"] = pMarker->get_name();
					map_evt["destin"] = "ALL";
					if (event->buttons() & Qt::LeftButton)
						map_evt["name"] = "ITEM_LBUTTON_DBLCLICKED";
					else if (event->buttons() & Qt::RightButton)
						map_evt["name"] = "ITEM_RBUTTON_DBLCLICKED";
					else if (event->buttons() & Qt::MidButton)
						map_evt["name"] = "ITEM_MBUTTON_DBLCLICKED";
					else
						map_evt["name"] = "ITEM_BUTTON_DBLCLICKED";
					map_evt["id"] = this->item_name();
					vi()->post_event(map_evt);
				}
			}

		}
	}



	QPointF geoGraphicsPixmapItem::label_pos()
	{
		return QPointF(offset().x()+this->boundingRect().width(),offset().y()-8);
	}
}
