/// <summary>
/// Create the menu bar and return the root panel.
/// The result would be a panel containing a group of dropdown entities, which implement the menu layout.
/// The id of every dropdown is "menu-[menu-title]".
/// Note: the returned menu bar panel comes without parent, you need to add it to your UI tree manually.
/// </summary>
/// <param name="layout">Layout to create menu bar with.</param>
/// <param name="skin">Skin to use for panels and dropdown of this menu.</param>
/// <returns>Menu root panel.</returns>
static public Entities.Panel Create(MenuLayout layout, Entities.PanelSkin skin = Entities.PanelSkin.Simple)
{
// create the root panel
var rootPanel = new Entities.Panel(new Vector2(0, Entities.DropDown.SelectedPanelHeight), skin, Entities.Anchor.TopLeft);
rootPanel.PriorityBonus = 10000;
rootPanel.Padding = Vector2.Zero;
// create menus
foreach (var menu in layout.Layout)
{
// create dropdown and all its items
var dropdown = new Entities.DropDown(new Vector2(menu.Width, -1), Entities.Anchor.AutoInline, null, Entities.PanelSkin.None, skin, false);
rootPanel.AddChild(dropdown);
foreach (var item in menu.Items)
{
dropdown.AddItem(item);
}
dropdown.AutoSetListHeight = true;
// set menu title and id
dropdown.DefaultText = menu.Title;
dropdown.Identifier = "menu-" + menu.Title;
// disable dropdown selection (will only trigger event and unselect)
dropdown.DontKeepSelection = true;
// set callbacks
for (int i = 0; i < menu.Items.Count; ++i)
{
var callback = menu.Actions[i];
if (callback != null)
{
var context = new MenuCallbackContext()
{
ItemIndex = i, ItemText = menu.Items[i], Entity = dropdown
};
dropdown.OnSelectedSpecificItem(menu.Items[i], () => { callback(context); });
}
}
}
// return the root panel
return(rootPanel);
}
/// <summary>
/// Create the file menu and return the root panel.
/// The result would be a panel containing a group of dropdown entities, which implement the file menu layout.
/// The id of every dropdown is "menu-[menu-title]".
/// Note: the returned file menu panel comes without parent, you need to add it to your UI tree manually.
/// </summary>
/// <param name="layout">Layout to create file menu for.</param>
/// <param name="skin">Skin to use for panels and dropdown of this file menu.</param>
/// <returns>Menu root panel.</returns>
static public Entities.Panel Create(MenuLayout layout, Entities.PanelSkin skin = Entities.PanelSkin.Simple)
{
// create the root panel
var rootPanel = new Entities.Panel(new Vector2(0, Entities.DropDown.SelectedPanelHeight), skin, Entities.Anchor.TopLeft);
rootPanel.Padding = Vector2.Zero;
// create menus
foreach (var menu in layout.Layout)
{
// create dropdown and all its items
var dropdown = new Entities.DropDown(new Vector2(menu.Width, -1), Entities.Anchor.AutoInline, null, Entities.PanelSkin.None, skin, false);
rootPanel.AddChild(dropdown);
foreach (var item in menu.Items)
{
dropdown.AddItem(item);
}
dropdown.AutoSetListHeight = true;
// set menu title and id
dropdown.DefaultText = menu.Title;
dropdown.Identifier = "menu-" + menu.Title;
// set events
dropdown.OnValueChange += (Entities.Entity ent) =>
{
// skip event when disable selection
if (dropdown.SelectedIndex == -1)
{
return;
}
// call the item callback
menu.Actions[dropdown.SelectedIndex]?.Invoke();
// unselect, so we'll show the menu title again
dropdown.Unselect();
};
}
// return the root panel
return(rootPanel);
}
