public Rect(Rect r)
{
Location = new Point(r.Location);
Size = new Point(r.Size);
}
public void Set(Rect R)
{
this.Location.Set(R.Location);
this.Size.Set(R.Size);
}
public void Unite(Rect ToContain)
{
int x1 = ToContain.mLocation.X;
int y1 = ToContain.mLocation.Y;
int x2 = ToContain.Right;
int y2 = ToContain.Bottom;
if (x1 < this.Location.X)
{
this.Size.X += this.Location.X - x1;
this.Location.X = x1;
}
if (y1 < this.Location.Y)
{
this.Size.Y += this.Location.Y - y1;
this.Location.Y = y1;
}
if (x2 > this.Right)
{
this.Size.X = x2 - this.Location.X;
}
if (y2 > this.Bottom)
{
this.Size.Y = y2 - this.Location.Y;
}
}
public bool IntersectsRectY(Rect Reference)
{
int y1 = Reference.Location.Y;
int y2 = Reference.Bottom;
int top = this.Location.Y;
int bottom = this.Bottom;
return (bottom > y1 && top < y2);
}
public int RelativeToRectY(Rect Reference)
{
int y1 = Reference.Location.Y;
int y2 = Reference.Bottom;
int top = this.Location.Y;
int bottom = this.Bottom;
if (top >= y2) return 5;
if (bottom <= y1) return 1;
if (top < y1)
{
if (bottom <= y2) return 2;
return 0;
}
if (bottom > y2) return 4;
return 3;
}
public bool IntersectsRectX(Rect Reference)
{
int x1 = Reference.Location.X;
int x2 = Reference.Right;
int left = this.Location.X;
int right = this.Right;
return (right > x1 && left < x2);
}
public bool IntersectsRect(Rect Reference)
{
return IntersectsRectX(Reference) && IntersectsRectY(Reference);
}
public bool Contains(Rect inner)
{
return
inner.Location.X >= this.Location.X
&& inner.Location.Y >= this.Location.Y
&& inner.Right <= this.Right
&& inner.Bottom <= this.Bottom;
}
public PointClassification ClassifyVertically(Rect r)
{
if (Y < r.Top)
{
return PointClassification.Before;
}
else if (Y <= r.Bottom)
{
return PointClassification.Inside;
}
else
{
return PointClassification.After;
}
}
public PointClassification ClassifyHorizontally(Rect r)
{
if (X < r.Left)
{
return PointClassification.Before;
}
else if (X <= r.Right)
{
return PointClassification.Inside;
}
else
{
return PointClassification.After;
}
}
