private void OnGUI()
{
if (DisplayText != "")
{
var x = DrawPosition.x;
var y = Screen.height - DrawPosition.y;
var UiString = DisplayText.Substring(0, Mathf.Min(140, DisplayText.Length));
var labelSize = GuiStyleFore.CalcSize(new GUIContent(UiString));
GUI.Box(new Rect(x - labelSize.x / 2 - 5, y + 15, labelSize.x + 10, labelSize.y + 10),
"", GuiStyleBack);
GUI.Box(new Rect(x - labelSize.x / 2, y + 20, labelSize.x, labelSize.y),
UiString, GuiStyleFore);
}
}
/// <summary>
/// Logically represents the user deleting a character in the UI calculator
/// </summary>
/// <param name="sender">The backspace button in the calculator</param>
/// <param name="e"></param>
public void BackSpace(object sender, RoutedEventArgs e)
{
string backspaceChar = "";
if (DisplayText == "0" || DisplayText == "")
{
return;
}
else
{
backspaceChar = DisplayText[DisplayText.Length - 1].ToString();
string backspaceString = DisplayText.Substring(0, (DisplayText.Length - 1));
DisplayText = backspaceString;
}
if (backspaceChar == ".")
{
HasDecimal = false;
}
}