void MSetButton_Click(object sender, EventArgs e)
{
if (mSymbols == null)
{
mSymbols = new SymbolCollection();
}
string symbolName = mSymbolNameTextBox.Text;
long symbolMagnitude = mSymbolValueTextBox.Magnitude;
Word.Signs symbolSign = mSymbolValueTextBox.Sign;
SymbolBase symbol = mSymbols[symbolName];
ValueSymbol valueSymbol = null;
if (symbol != null)
{
valueSymbol = symbol as ValueSymbol;
if (valueSymbol == null)
{
return;
}
valueSymbol.SetValue(symbolSign, symbolMagnitude);
var valueText = symbolMagnitude.ToString();
if (symbolSign.IsNegative())
{
valueText = '-' + valueText;
}
mListView.Items[symbolName].SubItems[valueFieldIndex].Text = valueText;
}
else
{
valueSymbol = ValueSymbol.ParseDefinition(symbolName) as ValueSymbol;
if (valueSymbol == null)
{
return;
}
valueSymbol.SetValue(symbolSign, symbolMagnitude);
mSymbols.Add(valueSymbol);
ShowSymbol(valueSymbol);
}
SetEnabledStates();
}
static string GetName(Word.Signs literalSign, long literalMagnitude, int count) =>
string.Concat("=", (literalSign.IsNegative() ? "-" : ""), literalMagnitude, '=', count);