public bool SetFormula(string mainFormula)
{
if (FormulaValidationHelper.CheckValidFormula(mainFormula))
{
MainFormula = AnalyzeFormula(mainFormula);
TruthTable = new TruthTable(MainFormula, MainFormula.Variables);
return(true);
}
return(false);
}
private void CreateTruthTable()
{
if (_myTree.MainFormula == null)
{
MessageBox.Show("Could not provide a truth table for an empty formula!!", "Error");
return;
}
try
{
//Compute truth value
TruthTable myTruthTable = _myTree.TruthTable;
List <int[]> preComputeData = TruthTableHelper.GetPreComputeValues(_myTree.Variables);
List <int> result = myTruthTable.ComputeTruthTable();
//Setup DataGridView
dgvTruthTable.ColumnCount = myTruthTable.NumberOfColumn + 1;
dgvTruthTable.RowCount = myTruthTable.NumberOfRow;
dgvTruthTable.Name = "Truth Table";
dgvTruthTable.RowHeadersVisible = false;
dgvTruthTable.AutoSize = true;
for (int i = 0; i < myTruthTable.NumberOfColumn; i++)
{
dgvTruthTable.Columns[i].Name = myTruthTable.Variables[i].Proposition.ToString();
}
dgvTruthTable.Columns[dgvTruthTable.ColumnCount - 1].Name = _originalFormula;
for (int i = 0; i < myTruthTable.Variables.Count + 1; i++)
{
for (int j = 0; j < myTruthTable.NumberOfRow; j++)
{
dgvTruthTable.Rows[j].Cells[i].Value = i != myTruthTable.Variables.Count ? preComputeData[i][j] : result[j];
}
}
foreach (DataGridViewColumn column in dgvTruthTable.Columns)
{
column.AutoSizeMode = DataGridViewAutoSizeColumnMode.DisplayedCells;
column.SortMode = DataGridViewColumnSortMode.NotSortable;
}
dgvTruthTable.Columns[dgvTruthTable.ColumnCount - 1].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error");
throw;
}
}
private void ShowSimplifyTruthTable()
{
try
{
//Compute truth value
TruthTable myTruthTable = _myTree.TruthTable;
var truthTableValues = TruthTableHelper.GetPreComputeValues(_myTree.Variables);
var truthTableResult = myTruthTable.ComputeTruthTable();
var result = myTruthTable.ComputeSimplifiedTruthTable();
var falseRows = TruthTableHelper.GetFalseRows(truthTableValues, truthTableResult, _myTree.Variables);
//Setup DataGridView
dgvSimplifiedTruthTable.Name = "Simplified Truth Table";
dgvSimplifiedTruthTable.RowHeadersVisible = false;
dgvSimplifiedTruthTable.AutoSize = true;
if (result != null)
{
dgvSimplifiedTruthTable.ColumnCount = myTruthTable.NumberOfColumn + 1;
dgvSimplifiedTruthTable.RowCount = falseRows.Count + TruthTableHelper.GetNrOfSimplifiedRows(result);
for (int i = 0; i < myTruthTable.NumberOfColumn; i++)
{
dgvSimplifiedTruthTable.Columns[i].Name = myTruthTable.Variables[i].Proposition.ToString();
}
dgvSimplifiedTruthTable.Columns[dgvSimplifiedTruthTable.ColumnCount - 1].Name = _originalFormula;
dgvSimplifiedTruthTable.Rows.Clear();
for (int j = 0; j < falseRows.Count; j++)
{
string[] rows = new string[falseRows[j].Length + 1];
falseRows[j].CopyTo(rows, 0);
rows[falseRows[j].Length] = "0";
dgvSimplifiedTruthTable.Rows.Add(rows);
}
foreach (var listOfSimplifiedRows in result)
{
for (int i = 0; i < listOfSimplifiedRows.Count; i++)
{
string[] rows = new string[listOfSimplifiedRows[i].Length + 1];
listOfSimplifiedRows[i].CopyTo(rows, 0);
rows[listOfSimplifiedRows[i].Length] = "1";
dgvSimplifiedTruthTable.Rows.Add(rows);
}
}
}
else
{
dgvSimplifiedTruthTable.ColumnCount = 1;
dgvSimplifiedTruthTable.RowCount = 1;
dgvSimplifiedTruthTable.Rows.Clear();
string[] errorMessage = { "Could not simplify the truth table of this formula!!" };
dgvSimplifiedTruthTable.Rows.Add(errorMessage);
}
foreach (DataGridViewColumn column in dgvSimplifiedTruthTable.Columns)
{
column.AutoSizeMode = DataGridViewAutoSizeColumnMode.DisplayedCells;
column.SortMode = DataGridViewColumnSortMode.NotSortable;
}
dgvSimplifiedTruthTable.Columns[dgvSimplifiedTruthTable.ColumnCount - 1].AutoSizeMode =
DataGridViewAutoSizeColumnMode.Fill;
this.Width = dgvSimplifiedTruthTable.Width + 40;
this.Height = dgvSimplifiedTruthTable.Height + 60;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error");
throw;
}
}