private void ArbitrageBtn_Click(object sender, EventArgs e)
{
OutputTxt.Text = "";
Digraph graph = new Digraph();
Parser p = new Parser();
graph = p.Parse(FilePathTxt.Text, ref OutputTxt);
if (!double.TryParse(ArbitrageAmountTxt.Text, out double moneyAtSource))
{
OutputTxt.Text = "Initial amount of money has to be a number";
}
else
{
var arbitrage = new Arbitrage(graph);
List <CurrencyVertex> path = arbitrage.Find(moneyAtSource);
string result;
if (path != null)
{
result = arbitrage.GenerateOutput(path, moneyAtSource);
}
else
{
result = "No arbitrage opportunity detected";
}
OutputTxt.Text = result;
}
GraphImg.Focus();
}
private void CurrencyBtn_Click(object sender, EventArgs e)
{
OutputTxt.Text = "";
Digraph graph = new Digraph();
Parser p = new Parser();
graph = p.Parse(FilePathTxt.Text, ref OutputTxt);
CurrencyVertex from = graph.nodes.Find(x => x.Symbol == FromTxt.Text);
CurrencyVertex to = graph.nodes.Find(x => x.Symbol == ToTxt.Text);
if (from == null)
{
OutputTxt.Text = "There is no such currency in the input file: " + FromTxt.Text;
}
else if (to == null)
{
OutputTxt.Text = "There is no such currency in the input file: " + ToTxt.Text;
}
else if (!double.TryParse(ExchangeAmountTxt.Text, out double moneyAtSource))
{
OutputTxt.Text = "Initial amount of money has to be a number";
}
else if (from.Equals(to))
{
OutputTxt.Text = "There is no need to convert " + from.Symbol + " to " + to.Symbol + ":)";
}
else
{
var exchange = new BestExchange(graph);
try
{
List <CurrencyVertex> path = exchange.Find(from, to, moneyAtSource, out double moneyAtFinish);
if (path == null)
{
OutputTxt.Text = "There is no exchange possible between given currencies";
}
else
{
var outputText = exchange.GenerateOutput(path);
OutputTxt.Text = outputText;
}
}
catch (OutOfMemoryException)
{
OutputTxt.Text = "There is an infinite arbitrage on the way!";
}
}
GraphImg.Focus();
}
private void FileBtn_Click(object sender, EventArgs e)
{
OutputTxt.Text = "";
Digraph graph = new Digraph();
GraphImg.Image = GraphImg.InitialImage;
OpenFileDialog ofd = new OpenFileDialog
{
Filter = "TXT|*.txt"
};
if (ofd.ShowDialog() == DialogResult.OK)
{
FilePathTxt.Text = ofd.FileName;
}
Parser p = new Parser();
graph = p.Parse(FilePathTxt.Text, ref OutputTxt);
GraphImg.Image = Image.FromFile(graph.SaveGraphAsImg(IMG_PATH));
GraphImg.Focus();
}
