/// <summary>
/// Indicates whether the current object is equal to another object of the same type.
/// </summary>
/// <param name="other">
/// A <see cref="GraphicsState"/> to compare to this GraphicsState.
/// </param>
/// <returns>
/// It returns true if the current object is equal to <paramref name="other"/>.
/// </returns>
/// <remarks>
/// <para>
/// This method test only whether <paramref name="other"/> type equals to this type.
/// </para>
/// </remarks>
/// <exception cref="ArgumentNullException">
/// This exception is thrown if the parameter <paramref name="other"/> is null.
/// </exception>
public override bool Equals(IGraphicsState other)
{
if (base.Equals(other) == false)
{
return(false);
}
Debug.Assert(other is PolygonOffsetState);
PolygonOffsetState otherState = (PolygonOffsetState)other;
if (mModes != otherState.mModes)
{
return(false);
}
if (Math.Abs(_Factor - otherState._Factor) > Double.Epsilon)
{
return(false);
}
if (Math.Abs(_Units - otherState._Units) > Double.Epsilon)
{
return(false);
}
return(true);
}
/// <summary>
/// Merge this state with another one.
/// </summary>
/// <param name="state">
/// A <see cref="IGraphicsState"/> having the same <see cref="StateIdentifier"/> of this state.
/// </param>
public override void Merge(IGraphicsState state)
{
if (state == null)
{
throw new ArgumentNullException("state");
}
PolygonOffsetState otherState = state as PolygonOffsetState;
if (otherState == null)
{
throw new ArgumentException("not a PolygonOffsetState", "state");
}
mModes = otherState.mModes;
_Factor = otherState._Factor;
_Units = otherState._Units;
}
