public void UpdateInputFunc(string strInFunc)
{
//call FunctionInterpreter to give it information on our new hash fuction
try
{
m_funcInputFunction = new Function_class(strInFunc, "x");
}//try
catch (Exception eA)
{
//something went wrong, tell the user
//the next call is code mostly reused from Tom Fuller's tutorial programs
string strMsg = String.Format("Update Input Function failed.\n\nUse of ''{0}failed: '{1}'",
strInFunc, eA.ToString());
MessageBox.Show(strMsg, "cs276_bjt_11-2-2008_hashFunctions - InOutHandler - FunctionInterpreter();",
MessageBoxButtons.OK,
MessageBoxIcon.Exclamation);
m_funcInputFunction = null;
throw new InvalidOperationException("Could not create new input function"); //throw new might be useful here...
}//catch
//check to see if the function was successfully created
if (m_funcInputFunction.Comment != "Successful")
{
m_funcInputFunction = null;
throw new ArgumentOutOfRangeException("Could not parse the function.");
}//if
//set min and max for function
m_funcInputFunction.SetLimits(0, 2000000);
//set things graph wise? set things domain wise? set domain counter?...
}
/// <summary>
/// We get information on a new function, m_plotGraphBuilder and m_fiHashFunction
/// need the information so that they can do their jobs
/// Pre: the min and max values are valid
/// </summary>
/// <param name="strInFunc">new hash function as a string</param>
/// <param name="iInRangeMin">minimum value that is output by the function</param>
/// <param name="iInRangeMax">maximum value that is output by the function</param>
public void UpdateHash(string strInFunc, int iInRangeMin, int iInRangeMax)
{
//call FunctionInterpreter to give it information on our new hash fuction
try
{
m_funcHashFunction = new Function_class(strInFunc, "x");
}//try
catch (Exception eA)
{
//something went wrong, tell the user
//the next call is code mostly reused from Tom Fuller's tutorial programs
string strMsg = String.Format("UpdateFunction failed.\n\nUse of ''{0}failed: '{1}'",
strInFunc, eA.ToString());
MessageBox.Show(strMsg, "cs276_bjt_11-2-2008_hashFunctions - InOutHandler - FunctionInterpreter.UpdateFunction();",
MessageBoxButtons.OK,
MessageBoxIcon.Exclamation);
m_funcHashFunction = null;
throw new InvalidOperationException("Could not create the function.");
}//catch
//check to see if the function was successfully created
if (m_funcHashFunction.Comment != "Successful")
{
m_funcHashFunction = null;
throw new ArgumentOutOfRangeException("Could not parse the function.");
}//if
//check to be sure we have an input funciton to work with
if (m_funcInputFunction == null)
{
throw new ArgumentOutOfRangeException("No input function has been created!");
}
//set min and max for function
m_funcHashFunction.SetLimits(iInRangeMin, iInRangeMax);
//so that we can keep track of how many times we send a new X input
m_iDomainCount = 0;
//give m_plotGraphBuilder the range so it can set up for plotting
//this should not fail, if it does there is an error in some other class
m_plotGraphBuilder.Reset(iInRangeMin, iInRangeMax);
}
