/// <summary>
/// Determines if the item can be displayed
/// </summary>
/// <param name="groupPath">The path of the group to evaluate</param>
/// <param name="items">The items that will be displayed</param>
/// <returns>True if the group can be displayed, false if not</returns>
private bool CanDisplay(string groupPath,
IEnumerable <GUIGenericMenuItem> items)
{
if (selectedPaths.Count < 1)
{
return(true);
}
GUIGroupMenuItem deepestGroup = selectedPaths[selectedPaths.Count - 1];
if (!items.Contains(deepestGroup))
{
return(true);
}
if (deepestGroup.PositionRect.Contains(Event.current.mousePosition) ||
deepestRect.Contains(Event.current.mousePosition))
{
return(true);
}
if (!canRemove)
{
return(true);
}
selectedPaths.RemoveAt(selectedPaths.Count - 1);
canRemove = false;
GUIUtility.ExitGUI();
return(false);
}
/// <summary>
/// Callback for group menu items to handle adding the group
/// to the collection of selected items
/// </summary>
/// <param name="groupObject">The group menu item to be added to the currently
/// selected</param>
private void AddPathToActive(GUIMenuItemParamEventArgs args)
{
GUIGroupMenuItem groupItem = args.SelectedItem as GUIGroupMenuItem;
if (groupItem == null)
{
return;
}
selectedPaths.AddUnique(groupItem);
}
/// <summary>
/// Renders the menu item if it's currently shown
/// </summary>
public void Draw()
{
selectedItem = null;
if (!IsShown)
{
return;
}
List <GUIGenericMenuItem> rootGroup;
if (!groupedMenuItems.TryGetValue(string.Empty, out rootGroup))
{
return;
}
DrawGroup(new Rect(drawPosition, Vector2.zero), string.Empty, rootGroup);
for (int i = 0; i < selectedPaths.Count; i++)
{
GUIGroupMenuItem groupItem = selectedPaths[i];
List <GUIGenericMenuItem> nestedGroup;
string nextGroup = groupItem.Path;
if (!string.IsNullOrEmpty(nextGroup))
{
nextGroup += "/";
}
nextGroup += groupItem.Display.text;
if (!groupedMenuItems.TryGetValue(nextGroup, out nestedGroup))
{
continue;
}
Rect rect = DrawGroup(groupItem.PositionRect, nextGroup, nestedGroup);
if (i == selectedPaths.Count - 1)
{
deepestRect = rect;
}
}
}