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//
// C++ Implementation: trackmodel
//
// Description:
//
//
// Author: Thibaut GRIDEL <tgridel@free.fr>
//
// Copyright (c) 2008-2009 Thibaut GRIDEL
//
// 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 <iostream>
#include <cmath>
#include "trackmodel.h"
#include "commontypes.h"
#include "situationmodel.h"
#include "boatmodel.h"
extern int debugLevel;
TrackModel::TrackModel(SituationModel *situation, QObject *parent)
: QObject(parent),
m_color(),
m_series(Boats::unknown),
m_showPath(true),
m_situation(situation),
m_length(0) {
m_order = situation->size();
if (debugLevel & 1 << MODEL) std::cout << "new track " << this << std::endl;
switch (situation->size() % 6) {
case 0: m_color = QColor(Qt::yellow); break;
case 1: m_color = QColor(Qt::blue); break;
case 2: m_color = QColor(Qt::green); break;
case 3: m_color = QColor(Qt::red); break;
case 4: m_color = QColor(Qt::cyan); break;
case 5: m_color = QColor(Qt::magenta); break;
}
setSeries(situation->situationSeries());
}
TrackModel::~TrackModel() {
if (debugLevel & 1 << MODEL) std::cout << "end track " << this << std::endl;
}
void TrackModel::setOrder(const int theValue) {
if (theValue != m_order) {
m_order = theValue;
emit orderChanged(m_order);
}
}
void TrackModel::setColor(const QColor& theValue) {
if (theValue != m_color) {
m_color = theValue;
emit colorChanged(m_color);
}
}
void TrackModel::setShowPath(const bool theValue) {
if (theValue != m_showPath) {
m_showPath = theValue;
emit showPathChanged(m_showPath);
}
}
void TrackModel::setSeries(const Boats::Series theValue) {
if (theValue != m_series) {
m_series = theValue;
m_length = m_situation->sizeForSeries(m_series);
emit seriesChanged(m_series);
}
}
void TrackModel::appendDiscardedXml(const QString& theValue) {
if (!m_discardedXml.contains(theValue)) {
m_discardedXml.append(theValue);
}
}
BoatModel * TrackModel::addBoat(BoatModel *boat, int order) {
if (order == -1) {
order = m_boats.size();
}
m_boats.insert(order, boat);
if (debugLevel & 1 << MODEL) std::cout << "Adding Boat " << order+1 << std::endl;
for (int i=order+1; i<m_boats.size(); i++) {
m_boats[i]->setOrder(i+1);
}
m_situation->addingBoat(boat);
changingTrack(this);
return boat;
}
int TrackModel::deleteBoat(BoatModel *boat) {
int order = m_boats.indexOf(boat);
m_boats.removeOne(boat);
if (debugLevel & 1 << MODEL) std::cout << "Removing Boat " << order+1 << std::endl;
for (int i=order; i<m_boats.size(); i++) {
m_boats[i]->setOrder(i+1);
}
m_situation->removingBoat(boat);
changingTrack(this);
return order;
}
void TrackModel::displayBoats() {
if (debugLevel & 1 << MODEL) std::cout << "Displaying boats" << std::endl;
foreach (BoatModel* boat, m_boats) {
m_situation->addingBoat(boat);
}
}
void TrackModel::hideBoats() {
if (debugLevel & 1 << MODEL) std::cout << "Hiding boats" << std::endl;
foreach (BoatModel* boat, m_boats) {
m_situation->removingBoat(boat);
}
}
// calculate new heading:
// from position of head of index boat to new potential position
qreal TrackModel::headingForNext(int index, QPointF point) {
const BoatModel* boat = m_boats.at(index);
qreal length = m_length / 2.0;
qreal theta0 = boat->heading() * M_PI /180;
QPointF point2 = point - (boat->position() + QPointF(length*sin(theta0),-length*cos(theta0)));
return fmod(atan2 (point2.x(), -point2.y()) * 180 / M_PI + 360.0, 360.0);
}
void TrackModel::changingTrack(TrackModel *track) {
QPainterPath path;
if (m_boats.size() < 1) {
m_path = path;
return;
}
QPointF pos0(m_boats[0]->position());
qreal heading0 = m_boats[0]->heading();
path.moveTo(pos0);
QListIterator<BoatModel*> boatI(m_boats);
boatI.next();
while (boatI.hasNext()) {
BoatModel *boat = boatI.next();
QPointF pos1(boat->position());
qreal heading1 = boat->heading();
// distance and angle between positions
QPointF delta = pos1-pos0;
qreal dist = sqrt(pow(delta.x(),2) + pow(delta.y(),2));
qreal theta = fmod(atan2 (delta.x(), -delta.y()) *180/M_PI +360, 360);
// empirical factor for control point distance
qreal factor = dist*2/5;
QPointF c1(pos0);
// stalled condition when next boat in the back
qreal angle0 = fmod(theta - heading0 +360, 360);
bool stalled0 = ((angle0 >= 90) && (angle0 <= 270));
if (!stalled0) {
c1 += QPointF(factor*sin(heading0 * M_PI /180), -factor*cos(heading0 * M_PI /180));
}
QPointF c2(pos1);
// stalled condition when previous boat in the back
qreal angle1 = fmod(theta- heading1 +360, 360);
bool stalled1 = ((angle1 >= 90) && (angle1 <= 270)) ;
if (!stalled1) {
c2 -= QPointF(factor*sin(heading1 * M_PI /180), -factor*cos(heading1 * M_PI /180));
}
path.cubicTo(c1, c2, pos1);
pos0 = pos1;
heading0 = heading1;
}
m_path = path;
emit trackChanged(track);
}
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