private void OnMemoryClick(object sender, EventArgs e)
{
Button b = (Button)sender;
string memoryClick = b.Text;
if (String.IsNullOrEmpty(_shownText))
{
_messageBoxDisplayService.Show("You can not use an invalid value!");
}
else
{
switch (memoryClick)
{
case "MC":
string message = "Do you want to empty the memory";
string title = "Memory Clear";
bool clearMemoryStored = _messageBoxDisplayService.PromptUser(message, title);
if (clearMemoryStored)
{
_calculatorEngine.MemoryClear();
}
break;
case "MR":
_shownText = FormatShownText(_calculatorEngine.MemoryRestore());
_calculatorView.SetResultBoxText(_shownText);
break;
case "MS":
_calculatorEngine.MemoryStore(decimal.Parse(_shownText));
break;
case "M+":
try { _calculatorEngine.MemoryAdd(Convert.ToDecimal(_shownText)); }
catch (FormatException formatEx) { _messageBoxDisplayService.Show(formatEx.Message); }
break;
case "M-":
try { _calculatorEngine.MemoryDiff(Convert.ToDecimal(_shownText)); }
catch (FormatException formatEx) { _messageBoxDisplayService.Show(formatEx.Message); }
break;
case "M":
_calculatorView.MemoryButtonShow(FormatShownText(_calculatorEngine.MemoryShow()));
break;
}
if (!_calculatorEngine.HasMemoryStored)
{
_calculatorView.DisableMemoryButtons();
}
else
{
_calculatorView.EnableMemoryButtons();
}
}
}