/* LOAD MENU FUNCTIONS */
private void MenuItem_Load_Click(object sender, EventArgs e)
{
Reset();
OpenFileDialog getUserFile = new OpenFileDialog();
getUserFile.Title = "Load Equation Data";
getUserFile.Multiselect = false;
getUserFile.CheckFileExists = true;
getUserFile.CheckPathExists = true;
string[] fileExtensions = ControlFlow.GetValidFileTypes();
if (fileExtensions != null)
{
string filter = fileExtensions[0] + "|" + fileExtensions[0];
for (int i = 1; i < fileExtensions.Length; i++)
{
filter += "|" + fileExtensions[i] + "|" + fileExtensions[i];
}
getUserFile.Filter = filter;
}
if (getUserFile.ShowDialog() == DialogResult.OK)
{
UpdateLog("Reading from: " + getUserFile.FileName + Environment.NewLine);
string[] fileContents = ControlFlow.ControlFile(getUserFile.FileName);
if (fileContents != null)
{
Txt_Equation.Text = fileContents[0];
HandleResults(fileContents[0], fileContents[1]);
}
}
else
{
UpdateLog("Error: Open File Dialog was closed." + Environment.NewLine);
}
Txt_Log.AppendText(logMessages);
ClearLog();
return;
}
/* CALCULATE BUTTON FUNCTION */
private void Btn_Calculate_Click(object sender, EventArgs e)
{
string equation = ControlFlow.ConditionRawInput(Txt_Equation.Text, false);
string variables = "";
List <string> varNames = new List <string>();
string[] delimiters = ControlFlow.GetDelimiters();
Grid_Vars.AllowUserToAddRows = false;
foreach (DataGridViewRow var in Grid_Vars.Rows)
{
if (var.Cells[0].Value != null && var.Cells[1].Value != null && var.Cells[2].Value != null)
{
if (var.Cells[0].Value.ToString() != "" && var.Cells[1].Value.ToString() != "" && var.Cells[2].Value.ToString() != "")
{
if (!varNames.Contains(Regex.Replace(var.Cells[0].Value.ToString(), @"\s+", "")))
{
variables += var.Cells[0].Value.ToString() + delimiters[1] + var.Cells[1].Value.ToString() + delimiters[1] + var.Cells[2].Value.ToString() + delimiters[0];
varNames.Add(Regex.Replace(var.Cells[0].Value.ToString(), @"\s+", ""));
}
else
{
UpdateLog("Warning: Found duplicate variable name (" + Regex.Replace(var.Cells[0].Value.ToString(), @"\s+", "") + "). Removing from the list." + Environment.NewLine);
Grid_Vars.Rows.Remove(var);
}
}
}
else
{
Grid_Vars.Rows.Remove(var);
}
}
Grid_Vars.AllowUserToAddRows = true;
HandleResults(equation, variables);
Txt_Log.AppendText(logMessages);
ClearLog();
return;
}
/* VARIABLE EXTRACTION FUNCTION */
private void Btn_ExtractVars_Click(object sender, EventArgs e)
{
string eq = ControlFlow.ConditionRawInput(Txt_Equation.Text, false);
string[] variables;
string[] varTableRow;
bool contains = false;
if (eq != "")
{
variables = ControlFlow.ExtractVariables(eq);
if (variables != null)
{
Txt_Equation.BackColor = System.Drawing.SystemColors.Window;
if (variables.Length > 0)
{
varTableRow = new string[] { "", "", "" };
foreach (string varName in variables)
{
foreach (DataGridViewRow row in Grid_Vars.Rows)
{
if (!(row.Cells[0].Value == null))
{
if (row.Cells[0].Value.ToString().Contains(varName))
{
contains = true;
}
}
}
if (!contains)
{
varTableRow[0] = varName;
Grid_Vars.Rows.Add(varTableRow);
}
contains = false;
}
Btn_ExtractVars.Enabled = false;
}
else
{
Btn_Calculate.Enabled = true;
}
}
else
{
Txt_Equation.BackColor = System.Drawing.Color.Red;
}
}
else
{
UpdateLog("Error: Equation field is empty. Please enter an equation into the Equation field to proceed." + Environment.NewLine);
Txt_Equation.BackColor = System.Drawing.Color.Red;
}
Txt_Log.AppendText(logMessages);
ClearLog();
return;
}