private static Tuple <ToolStripMenuItem, Action> InitializeActionMenuItem(BaseAssetForm <T> form,
IEnumerable <Tuple <string[], Keys, int, MethodInfo> > data, out int priority)
{
var formType = form.GetType();
Delegate actionMethod = null;
Delegate validationMethod = null;
priority = -1;
var shortcut = Keys.None;
var actionDelegateType = typeof(Action <>).MakeGenericType(formType);
var validationDelegateType = typeof(Func <,>).MakeGenericType(formType, typeof(bool));
foreach (var d in data)
{
if (actionMethod != null && validationMethod != null)
{
break;
}
if (actionMethod == null)
{
var d2 = Delegate.CreateDelegate(actionDelegateType, null, d.Item4, false);
if (d2 != null)
{
actionMethod = d2;
priority = d.Item3;
shortcut = d.Item2;
}
}
else
{
var d2 = Delegate.CreateDelegate(validationDelegateType, null, d.Item4, false);
if (d2 != null)
{
validationMethod = d2;
}
}
}
if (actionMethod == null)
{
return(null);
}
var e = new ToolStripMenuItem {
ShortcutKeys = shortcut
};
e.Click += (sender, args) => { actionMethod.DynamicInvoke(form); };
Action validationAction = null;
if (validationMethod != null)
{
validationAction = () => { e.Enabled = (bool)validationMethod.DynamicInvoke(form); };
}
return(Tuple.Create(e, validationAction));
}
private static IEnumerable <System.Tuple <ToolStripMenuItem, int, IEnumerable <Action> > > BuildToolStripItems(
BaseAssetForm <T> form, IEnumerable <Tuple <string[], Keys, int, MethodInfo> > data, int index)
{
var d2 = data.ToArray();
var group = d2.GroupBy(d => d.Item1[index]).OrderBy(g => g.Key);
foreach (var g in group)
{
ToolStripMenuItem e;
var priority = 0;
var validationCallbacks = Enumerable.Empty <Action>();
var d3 = g.GroupBy(d => d.Item1.Length - index)
.ToLookup(d => d.Key > 1, d => (IEnumerable <Tuple <string[], Keys, int, MethodInfo> >)g);
var multi = d3[true].Any();
var single = d3[false].Any();
if (multi && single)
{
throw new Exception(
$"Single menu item found on the same menu path as a multi tool. \"{d3[false].SelectMany(d => d).First().Item1.Aggregate((s1, s2) => s1 + "/" + s2)}\"");
}
if (single)
{
var t = InitializeActionMenuItem(form, g, out priority);
if (t == null)
{
continue;
}
e = t.Item1;
if (t.Item2 != null)
{
validationCallbacks = new[] { t.Item2 }
}
;
}
else
{
var elements = BuildToolStripItems(form, g, index + 1).ToArray();
if (elements.Length == 0)
{
continue;
}
e = new ToolStripMenuItem();
e.DropDownItems.AddRange(elements.Sort(MenuItemSorter).Select(e2 => e2.Item1).Cast <ToolStripItem>().ToArray());
priority = 0;
var callbacks = elements.SelectMany(e2 => e2.Item3).Where(a => a != null).ToArray();
if (callbacks.Length > 0)
{
e.DropDownOpening += (sender, args) =>
{
foreach (var v in callbacks)
{
v();
}
};
}
}
e.Text = g.Key;
e.AutoSize = true;
yield return(Tuple.Create(e, priority, validationCallbacks));
}
}