private void ValueButtons(char numberButton)
{
if (Screen.Text == "")
{
if (Screen.Text == "" && numberButton != '.')
{
Screen.Text = $"{Screen.Text}{numberButton}";
History.Text += numberButton;
CountingInput += numberButton;
}
else
{
Screen.Text = $"0.";
History.Text += "0.";
CountingInput += "0.";
}
}
else
{
if (CountingInput.Last() == '+' || CountingInput.Last() == '-' || CountingInput.Last() == '*' || CountingInput.Last() == '/')
{
Screen.Text = "";
Screen.Text = $"{numberButton}";
History.Text += numberButton;
CountingInput += numberButton;
}
else
{
if (Screen.Text == "0" && numberButton != '.')
{
Screen.Text = $"{numberButton}";
History.Text = History.Text.TrimEnd(History.Text.Last());
CountingInput = CountingInput.TrimEnd(CountingInput.Last());
History.Text += numberButton;
CountingInput += numberButton;
}
else
{
Screen.Text = $"{Screen.Text}{numberButton}";
History.Text += numberButton;
CountingInput += numberButton;
}
}
}
}
private void BackSpaceButton_Click(object sender, RoutedEventArgs e)
{
if (Screen.Text != "")
{
if (!(CountingInput.Last() == '+' || CountingInput.Last() == '-' || CountingInput.Last() == '*' || CountingInput.Last() == '/'))
{
CountingInput = CountingInput.Substring(0, CountingInput.Length - 1);
History.Text = History.Text.Substring(0, History.Text.Length - 1);
Screen.Text = Screen.Text.Substring(0, Screen.Text.Length - 1);
if (Screen.Text == "-")
{
Screen.Text = "";
CountingInput = CountingInput.Substring(0, CountingInput.Length - 1);
History.Text = History.Text.Substring(0, History.Text.Length - 1);
}
}
}
}
private void ActionButton(string mathaction)
{
if (Screen.Text != "")
{
if (CountingInput.Last() == '+' || CountingInput.Last() == '-' || CountingInput.Last() == '*' || CountingInput.Last() == '/')
{
History.Text = History.Text.TrimEnd(History.Text.Last());
History.Text += mathaction;
CountingInput = CountingInput.TrimEnd(CountingInput.Last());
CountingInput += mathaction;
}
else
{
History.Text += mathaction;
CountingInput += mathaction;
}
}
}