transition::transition(node * n1, node * n2,QString name,QString lastId)
{
this->n1 = n1;
this->n2 = n2;
this->name = new QString(name);
this->id = new QString(generateId(lastId));
this->p1 = new QPointF(getP1());
this->p2 = new QPointF(getP2());
nodesAreCircles = false;
}
Logical LineClass::intersectsRect(const RectangleClass rect)
{
double l,r,t,b;
double top_intersection;
double bottom_intersection;
double toptrianglepoint;
double bottomtrianglepoint;
double m;
double c;
double x0,x1;
double y0,y1;
l = rect.left;
r = rect.right;
t = rect.top;
b = rect.bottom;
Point start = getP1(), end = getP2();
x0 = start.getX();
y0 = start.getY();
x1 = end.getX();
y1 = end.getY();
//case where x0 == x1 or y0 == y1
if(x0 == x1 || y0 == y1)
{
//test individual side of the object in question
LineClass top(rect.left, rect.top, rect.right, rect.top);
if(intersects(top))
{
return yes;
}
LineClass bottom(rect.left, rect.bottom, rect.right, rect.bottom);
if(intersects(bottom))
{
return yes;
}
/*LineClass left(rect.left, rect.top, rect.left, rect.bottom);
if(intersects(left))
{
return yes;
}
LineClass right(rect.right, rect.top, rect.right, rect.bottom);
if(intersects(right))
{
return yes;
}*/
return no;
}
// Calculate m and c for the equation for the line (y = mx+c)
m = (y1 - y0) / (x1 - x0);
c = y0 - (m * x0);
// if the line is going up from right to left then the top intersect point is on the left
if(m>0)
{
top_intersection = (m * l + c);
bottom_intersection = (m * r + c);
}
// otherwise it's on the right
else
{
top_intersection = (m * r + c);
bottom_intersection = (m * l + c);
}
// work out the top and bottom extents for the triangle
if(y0<y1)
{
toptrianglepoint = y0;
bottomtrianglepoint = y1;
}
else
{
toptrianglepoint = y1;
bottomtrianglepoint = y0;
}
double topoverlap;
double botoverlap;
// and calculate the overlap between those two bounds
topoverlap = top_intersection > toptrianglepoint ? top_intersection : toptrianglepoint;
botoverlap = bottom_intersection < bottomtrianglepoint ? bottom_intersection : bottomtrianglepoint;
// (topoverlap<botoverlap) :
// if the intersection isn't the right way up then we have no overlap
// (!((botoverlap<t) || (topoverlap>b)) :
// If the bottom overlap is higher than the top of the rectangle or the top overlap is
// lower than the bottom of the rectangle we don't have intersection. So return the negative
// of that. Much faster than checking each of the points is within the bounds of the rectangle.
return (topoverlap < botoverlap) && (!((botoverlap < t) || (topoverlap >b )));
}
int segmVe::operator==(segmVe & s1)
{
return ((getP1() == s1.getP1()) && (getP2() == s1.getP2()));
}
float ToneMap::getProbability(int v)
{
return (param_omegas_[0] * getP1(v) + param_omegas_[1] * getP2(v) + param_omegas_[2] * getP3(v));
}
void transition::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget){
option = NULL; //pour éviter un warning
widget = NULL; //pour éviter un warning
/*---------------------
* Variables du painter
---------------------*/
QPen pen;
pen.setWidth(WIDTHLINE);
pen.setColor(LINECOLOR);
QBrush brush;
brush.setColor(LINECOLOR);
brush.setStyle(Qt::SolidPattern);
QFont font(FONTNAME, FONTSIZE);
QFontMetrics fm(font);
int widthOfName = fm.width(*name); //récupération des dimenssion du text
// int heightOfName = fm.height();
painter->setPen(pen);
painter->setFont(font);
/*-----------------------------------------------------
* dessine la ligne de du polygon (triangle de la fleche)
------------------------------------------------------*/
/*-- IMPLIQUE QUE ON A CONSTRUIE L'OBJET AVEC LES NOEUD EN PARAMETTRE */
QLineF line(getP1(),getP2());
painter->drawLine(line);
QPointF destPoint = line.p2().toPoint();
int arrowSize = 6;
double angle = ::acos(line.dx() / line.length());
if (line.dy() >= 0){
angle = TwoPi - angle;
}
QPointF destArrowP1 = destPoint + QPointF( sin(angle - Pi / 3) * arrowSize, cos(angle - Pi / 3) * arrowSize);
QPointF destArrowP2 = destPoint + QPointF( sin(angle - Pi + Pi / 3) * arrowSize, cos(angle - Pi + Pi / 3) * arrowSize);
QPolygonF tmp_polygon;
tmp_polygon << line.p2() << destArrowP1 << destArrowP2;
QPainterPath path;
path.addPolygon(tmp_polygon);
painter->drawPolygon(tmp_polygon);
painter->fillPath(path, brush);
/*------------------
* dessine le texte
-------------------*/
int x = (line.p2().x() + line.p1().x())/2;
int y = (line.p2().y() + line.p1().y())/2;
QPointF midlePoint(x,y);
QString tmp_name = " "+(*name); //met un espace avant le nom afin de le décalé un peut de la ligne
pen.setColor(TEXTCOLOR);
painter->setPen(pen);
painter->drawText(midlePoint.x()-widthOfName/2,midlePoint.y(),tmp_name);
}
