public bool IntersectsWith(RectangleF rect)
{
return (rect.X < this.X + this.Width) &&
(this.X < (rect.X + rect.Width)) &&
(rect.Y < this.Y + this.Height) &&
(this.Y < rect.Y + rect.Height);
}
public bool Intersects(RectangleF a, RectangleF b)
{
if (b.X < a.Right && a.X < b.Right && b.Y < a.Bottom)
return a.Y < b.Bottom;
return false;
}
public void Intersect(RectangleF rect)
{
RectangleF result = RectangleF.Intersect(rect, this);
this.X = result.X;
this.Y = result.Y;
this.Width = result.Width;
this.Height = result.Height;
}
public bool Contains(RectangleF rect)
{
return (this.X <= rect.X) &&
((rect.X + rect.Width) <= (this.X + this.Width)) &&
(this.Y <= rect.Y) &&
((rect.Y + rect.Height) <= (this.Y + this.Height));
}
public static RectangleF Intersect(RectangleF a, RectangleF b)
{
float x1 = Math.Max(a.X, b.X);
float x2 = Math.Min(a.X + a.Width, b.X + b.Width);
float y1 = Math.Max(a.Y, b.Y);
float y2 = Math.Min(a.Y + a.Height, b.Y + b.Height);
if (x2 >= x1
&& y2 >= y1)
{
return new RectangleF(x1, y1, x2 - x1, y2 - y1);
}
return RectangleF.Empty;
}
public static RectangleF Inflate(RectangleF rect, float x, float y)
{
RectangleF r = rect;
r.Inflate(x, y);
return r;
}
