public bool checkHitEllipse(gPoint p)
{
bool tf = false;
double c_x = (p.point1.X - p.point0.X) / 2;
double c_y = (p.point2.Y - p.point0.Y) / 2;
System.Windows.Point center = new System.Windows.Point(p.point0.X + c_x, p.point0.Y + c_y);
double simpleX = Math.Sqrt((1 - Math.Pow((p.mouseXY.Y - center.Y), 2) / Math.Pow(c_y, 2)) * Math.Pow(c_x, 2));
double simpleY = Math.Sqrt((1 - Math.Pow((p.mouseXY.X - center.X), 2) / Math.Pow(c_x, 2)) * Math.Pow(c_y, 2));
double higherPlaceX = center.X + simpleX;
double lowerPlaceX = center.X - simpleX;
double higherPlaceY = center.Y + simpleY;
double lowerPlaceY = center.Y - simpleY;
if (p.mouseXY.X <= higherPlaceX && p.mouseXY.X >= higherPlaceX - 3)
{
tf = true;
}
if (p.mouseXY.X >= lowerPlaceX && p.mouseXY.X <= lowerPlaceX + 3)
{
tf = true;
}
if (p.mouseXY.Y <= higherPlaceY && p.mouseXY.Y >= higherPlaceY - 3)
{
tf = true;
}
if (p.mouseXY.Y >= lowerPlaceY && p.mouseXY.Y <= lowerPlaceY + 3)
{
tf = true;
}
return(tf);
}
public int checkHitWhich(List <gPath> l, gPoint gp, int drawType)
{
int whichOne = -1;
for (int i = l.Count - 1; i >= 0; i--)
{
if (drawType < 3 || drawType == 4)
{
if (l[i].controlBtn1 != gp.point0)
{
continue;
}
if (l[i].controlBtn2 != gp.point1)
{
continue;
}
if (l[i].controlBtn3 != gp.point2)
{
continue;
}
if (l[i].controlBtn4 != gp.point3)
{
continue;
}
}
if (drawType == 3)
{
if (l[i].drawtype != drawType)
{
continue;
}
if (l[i].controlBtn1 != gp.point0)
{
continue;
}
if (l[i].controlBtn4 != gp.point3)
{
continue;
}
}
whichOne = i;
}
return(whichOne);
}
public bool checkHitRect(gPoint p)
{
bool tf = false;
if ((p.mouseXY.X <= p.point1.X + 3 && p.mouseXY.X >= p.point1.X - 3) || (p.mouseXY.X >= p.point0.X - 3 && p.mouseXY.X <= p.point0.X + 3))
{
if (p.mouseXY.Y <= p.point2.Y && p.mouseXY.Y >= p.point0.Y)
{
tf = true;
}
}
if ((p.mouseXY.Y <= p.point2.Y + 3 && p.mouseXY.Y >= p.point2.Y - 3) || (p.mouseXY.Y >= p.point0.Y - 3 && p.mouseXY.Y <= p.point0.Y + 3))
{
if (p.mouseXY.X <= p.point1.X && p.mouseXY.X >= p.point0.X)
{
tf = true;
}
}
return(tf);
}