/*! \brief Raising an event invokes the event handler through a delegate.
*
* The \b OnMenuSelection method also allows derived classes to handle the
* event without attaching a delegate. This is the preferred technique for
* handling the event in a derived class.
* \note When overriding \b OnMenuSelection in a derived class, be sure to
* call the base class's \b OnMenuSelection method so that registered delegates
* receive the event. */
protected virtual void OnMenuSelection(Wimp.MenuSelectionEventArgs e)
{
if (MenuSelection != null)
{
MenuSelection(this, e);
}
}
// Because we're a derived object, override the method in the WimpTask base class
// rather than subscribe to the events.
protected override void OnMenuSelection(Wimp.MenuSelectionEventArgs e)
{
if (Wimp.Menu.IsCurrent(main_menu))
{
int[] selection = e.MenuSelectionWimpBlock.Selection;
/* Each element of the array gives the index of the selected item of the menu at
* that level. So selection[0] gives the item selected in the first/root menu.
* The last selection is terminated by -1. */
switch (selection[(int)MainMenu.Root])
{
case (int)MainMenuItem.FileSubMenu:
if (selection[1] == (int)FileMenuItem.Save)
{
Reporter.WriteLine("Save menu item selected");
}
break;
case (int)MainMenuItem.EditSubMenu:
if (selection[1] == (int)EditMenuItem.RenameSubMenu &&
selection[2] == (int)RenameMenuItem.Rename)
{
Reporter.WriteLine("Rename menu item selected - new text is {0}",
rename_menuitem.GetText());
}
break;
case (int)MainMenuItem.Quit:
Reporter.WriteLine("Quit menu item selected");
Quit = true;
break;
}
}
}