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/*
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*
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* This file is part of QMapControl,
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* an open-source cross-platform map widget
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*
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* Copyright (C) 2007 - 2008 Kai Winter
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with QMapControl. If not, see <http://www.gnu.org/licenses/>.
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*
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* Contact e-mail: kaiwinter@gmx.de
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* Program URL   : http://qmapcontrol.sourceforge.net/
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*
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*/
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#include "linestring.h"
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namespace qmapcontrol
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{
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    LineString::LineString()
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        : Curve()
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    {
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        GeometryType = "LineString";
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    }
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    LineString::LineString(QList<Point*> const points, QString name, QPen* pen)
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        :Curve(name)
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    {
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        mypen = pen;
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        LineString();
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        setPoints(points);
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    }
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    LineString::~LineString()
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    {
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    }
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    // Geometry LineString::Clone(){}
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    // Point LineString::EndPoint(){}
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    // Point LineString::StartPoint(){}
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    // Point LineString::Value(){}
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    void LineString::addPoint(Point* point)
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    {
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        vertices.append(point);
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    }
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    QList<Point*> LineString::points()
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    {
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        return vertices;
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    }
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    void LineString::setPoints(QList<Point*> points)
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    {
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        for (int i=0; i<points.size(); i++)
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        {
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            points.at(i)->setParentGeometry(this);
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        }
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        vertices = points;
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    }
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    void LineString::draw(QPainter* painter, const MapAdapter* mapadapter, const QRect &screensize, const QPoint offset)
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    {
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        if (!visible)
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            return;
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        QPolygon p = QPolygon();
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        QPointF c;
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        for (int i=0; i<vertices.size(); i++)
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        {
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            c = vertices[i]->coordinate();
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            p.append(mapadapter->coordinateToDisplay(c));
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        }
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        if (mypen != 0)
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        {
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            painter->save();
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            painter->setPen(*mypen);
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        }
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        painter->drawPolyline(p);
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        if (mypen != 0)
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        {
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            painter->restore();
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        }
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        for (int i=0; i<vertices.size(); i++)
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        {
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            vertices[i]->draw(painter, mapadapter, screensize, offset);
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        }
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    }
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    int LineString::numberOfPoints() const
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    {
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        return vertices.count();
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    }
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    bool LineString::Touches(Point* geom, const MapAdapter* mapadapter)
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    {
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        // qDebug() << "LineString::Touches Point";
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        touchedPoints.clear();
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        bool touches = false;
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        for (int i=0; i<vertices.count(); i++)
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        {
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            // use implementation from Point
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            if (vertices.at(i)->Touches(geom, mapadapter))
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            {
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                touchedPoints.append(vertices.at(i));
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                touches = true;
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            }
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        }
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        if (touches)
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        {
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            emit(geometryClicked(this, QPoint(0,0)));
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        }
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        return touches;
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    }
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    bool LineString::Touches(Geometry* /*geom*/, const MapAdapter* /*mapadapter*/)
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    {
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        // qDebug() << "LineString::Touches Geom";
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        touchedPoints.clear();
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        return false;
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    }
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    QList<Geometry*> LineString::clickedPoints()
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    {
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        return touchedPoints;
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    }
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    bool LineString::hasPoints() const
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    {
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        return vertices.size() > 0 ? true : false;
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    }
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    bool LineString::hasClickedPoints() const
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    {
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        return touchedPoints.size() > 0 ? true : false;
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    }
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    QRectF LineString::boundingBox()
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    {
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        qreal minlon=180;
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        qreal maxlon=-180;
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        qreal minlat=90;
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        qreal maxlat=-90;
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        for (int i=0; i<vertices.size(); i++)
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        {
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            Point* tmp = vertices.at(i);
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            if (tmp->longitude() < minlon) minlon = tmp->longitude();
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            if (tmp->longitude() > maxlon) maxlon = tmp->longitude();
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            if (tmp->latitude() < minlat) minlat = tmp->latitude();
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            if (tmp->latitude() > maxlat) maxlat = tmp->latitude();
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        }
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        QPointF min = QPointF(minlon, minlat);
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        QPointF max = QPointF(maxlon, maxlat);
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        QPointF dist = max - min;
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        QSizeF si = QSizeF(dist.x(), dist.y());
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        return QRectF(min, si);
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    }
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}