public override bool Equals(object obj)
{
if (!(obj is SizeD))
{
return(false);
}
SizeD comp = (SizeD)obj;
return((comp.width == this.width) && (comp.height == this.height));
}
public static SizeD Sub(SizeD s1, SizeD s2)
{
return(new SizeD(s1.Width - s2.Width, s1.Height - s2.Height));
}
public static SizeD operator -(SizeD s1, SizeD s2)
{
return(SizeD.Sub(s1, s2));
}
public static SizeD Add(SizeD s1, SizeD s2)
{
return(new SizeD(s1.Width + s2.Width, s1.Height + s2.Height));
}
public static SizeD operator +(SizeD s1, SizeD s2)
{
return(SizeD.Add(s1, s2));
}