using System;
using System.Collections.Generic;
using System.Text;
using BaseTypes;
using FormulaEditor.Interfaces;
namespace FormulaEditor
{
public class RealMatrixBinary : IObjectOperation, IBinaryAcceptor, IBinaryDetector
{
#region Fields
const Double a = 0;
ArrayReturnType type;
protected double[,] buffer;
internal static readonly RealMatrixBinary Singleton = new RealMatrixBinary();
#endregion
#region Ctor
private RealMatrixBinary()
{
}
internal RealMatrixBinary(int row, int col)
{
buffer = new double[row, col];
type = new ArrayReturnType(a, new int[] { row, col }, false);
}
#endregion
#region IObjectOperation Members
int IObjectOperation.Arity
{
get { return 2; }
}
public virtual object this[object[] x]
{
get { throw new Exception("The method or operation is not implemented."); }
}
object IObjectOperation.ReturnType
{
get { return type; }
}
bool IObjectOperation.IsPowered
{
get { return false; }
}
#endregion
#region IBinaryAcceptor Members
IObjectOperation IBinaryAcceptor.Accept(object typeA, object typeB)
{
object[] t = new object[] { typeA, typeB };
ArrayReturnType[] ats = new ArrayReturnType[2];
for (int i = 0; i < t.Length; i++)
{
object ty = t[i];
if (!(ty is ArrayReturnType))
{
return null;
}
ArrayReturnType at = ty as ArrayReturnType;
if (at.IsObjectType)
{
return null;
}
if (!at.ElementType.Equals(a))
{
return null;
}
if (at.Dimension.Length != 2)
{
return null;
}
ats[i] = at;
}
if (ats[0].Dimension[0] != ats[1].Dimension[0] | ats[0].Dimension[1] != ats[1].Dimension[1])
{
return null;
}
int[] dim = ats[0].Dimension;
return CreateOpreation(dim[0], dim[1]);
}
#endregion
protected virtual RealMatrixBinary CreateOpreation(int row, int col)
{
return null;
}
#region IBinaryDetector Members
BinaryAssociationDirection IBinaryDetector.AssociationDirection
{
get { return BinaryAssociationDirection.LeftRight; }
}
IBinaryAcceptor IBinaryDetector.Detect(MathSymbol s)
{
char c = s.Symbol;
if (c == '+')
{
return RealMatrixAdd.Singleton;
}
if (c == '-')
{
return RealMatixDifference.Singleton;
}
return null;
}
#endregion
}
}
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