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//
// C++ Implementation: GennakerGraphicsItem
//
// Description:
//
//
// Author: Graham Louth <boatscenario@louths.org.uk>
//
// Copyright (c) 2013 Graham Louth
//
// 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/>.
//
//
#include "gennaker.h"
#include "commontypes.h"
#include "trackmodel.h"
#include "boatmodel.h"
#include <QPainter>
#include <QGraphicsScene>
#include <iostream>
extern int debugLevel;
GennakerGraphicsItem::GennakerGraphicsItem(BoatModel *boat, QGraphicsItem *parent)
: SailGraphicsItem(boat, parent),
m_pole(new QGraphicsLineItem(parent)) { //NB boat as parent to avoid need to offset sail rotatation for pole
}
GennakerGraphicsItem::~GennakerGraphicsItem() {}
void GennakerGraphicsItem::setSailSize(qreal sailSize) {
m_sailSize = sailSize;
QPainterPath sailPathStalled;
sailPathStalled.cubicTo(.1 * sailSize, .2 * sailSize, .1 * sailSize, .2 * sailSize, 0, .3 * sailSize);
sailPathStalled.cubicTo(-.1 * sailSize, .4 * sailSize, -.1 * sailSize, .4 * sailSize, 0, .5 * sailSize);
sailPathStalled.cubicTo(.1 * sailSize, .6 * sailSize, .1 * sailSize, .6 * sailSize, 0, .7 * sailSize);
sailPathStalled.cubicTo(-.1 * sailSize, .8 * sailSize, -.1 * sailSize, .8 * sailSize, 0, sailSize);
sailPathStalled.lineTo(0, 0);
m_sailPathStalled = sailPathStalled;
QPainterPath sailPathStarboard;
sailPathStarboard.cubicTo(.35 * sailSize, .3 * sailSize, .28 * sailSize, .6 * sailSize, 0, sailSize);
sailPathStarboard.cubicTo(.2 * sailSize, .6 * sailSize, .25 * sailSize, .3 * sailSize, 0, 0);
m_sailPathStarboard = sailPathStarboard;
QPainterPath sailPathPort;
sailPathPort.cubicTo(-.35 * sailSize, .3 * sailSize, -.28 * sailSize, .6 * sailSize, 0, sailSize);
sailPathPort.cubicTo(-.2 * sailSize, .6 * sailSize, -.25 * sailSize, .3 * sailSize, 0, 0);
m_sailPathPort = sailPathPort;
setSailAngle(m_sailAngle);
}
void GennakerGraphicsItem::setPoleLength(qreal length) {
m_pole->setLine(0,0,0,length);
QPen polePen;
polePen.setWidthF(0.5);
polePen.setCapStyle(Qt::FlatCap);
m_pole->setPen(polePen);
}
void GennakerGraphicsItem::setPosition(QPointF position) {
if (pos() != position) {
setPos(position);
m_pole->setPos(position);
update();
}
}
void GennakerGraphicsItem::setVisible(bool visibility) {
if (isVisible() != visibility) {
SailGraphicsItem::setVisible(visibility);
m_pole->setVisible(visibility);
update();
}
}
/// calculate a sail incidence angle, corrected with user trimming
void GennakerGraphicsItem::setSailAngle(qreal value) {
m_sailAngle = value;
qreal angle = fmod(m_boat->heading() - m_boat->wind() - m_sailAngle +360, 360);
if(angle < 0) angle +=360;
if ((angle < 55 || angle > 305 || (angle > 170 && angle < 190)) && path() != m_sailPathStalled) {
setPath(m_sailPathStalled);
} else if (angle >= 55 && angle <= 170 && path() != m_sailPathStarboard) {
setPath(m_sailPathStarboard);
} else if (angle >= 190 && angle <= 305 && path() != m_sailPathPort) {
setPath(m_sailPathPort);
}
QTransform transform;
transform.rotate(- m_sailAngle);
setTransform(transform, false);
}
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