// if a left-panel button is clicked, handle the event
private void ButtonClicked(object sender, RoutedEventArgs e)
{
// determine Button which triggered the event
Button button = (Button)sender;
int buttonNumber = int.Parse(button.Name.Substring(1));
// pass the number of the button to the state
// if the button has any associated text it will be returned
string clickedText = state.ButtonClicked(buttonNumber);
// write button click text
if (clickedText != null)
{
gc.Write(clickedText);
}
UpdateButtons();
}
