breakpoint

BITKit/Scripts/UX/UXTabViewService.cs

@@ -0,0 +1,82 @@
+using Godot;
+using System;
+using Godot.Collections;
+
+namespace BITKit.UX
+{
+	[Tool]
+	public partial class UXTabViewService : Control
+	{
+		[ExportCategory(Constant.Header.Settings)]
+		[Export(PropertyHint.Range, "0,100,1")]
+		private int currentIndex
+		{
+			get=>_currentIndex;
+			set => SetIndex(value);
+		}
+		[Export] private int initialIndex;
+		[ExportCategory(Constant.Header.Components)]
+		[Export] private Array<Button> tabs;
+		[Export] private TabContainer tabContainer;
+		private ButtonGroup _buttonGroup;
+		
+		private int _currentIndex;
+
+		public override void _Ready()
+		{
+			if (_isReady is false) return;
+			_buttonGroup = new ButtonGroup();
+
+			for (var i = 0; i < tabs.Count; i++)
+			{
+				var tab = tabs[i];
+				var _i = i;
+				tab.Pressed += () => { SetIndex(_i); };
+			}
+
+			var index = (Engine.IsEditorHint(), currentIndex, initialIndex) switch
+			{
+				(true,_,_)=>currentIndex,
+				(false,_,>-1)=>initialIndex,
+				(_,_,-1)=>-1,
+				_ => -1
+			};
+			SetIndex(index);
+		}
+
+		private void SetIndex(int value)
+		{
+			if (_isReady is false) return;
+			if (value < 0) return;
+			
+			EnsureConfiguration();
+
+			value = Mathf.Clamp(value, 0, tabContainer.GetChildCount() -1 );
+			
+			_currentIndex = value;
+			tabContainer.CurrentTab = value;
+
+			foreach (var tab in tabs)
+			{
+				tab.ButtonPressed = false;
+			}
+			if (tabs.TryGetElementAt(value, out var button))
+			{
+				button.ButtonPressed = true;
+			}
+		}
+
+		private void EnsureConfiguration()
+		{
+			if (_isReady is false) return;
+			tabContainer.TabsVisible = false;
+			
+			foreach (var tab in tabs)
+			{
+				tab.ButtonGroup = _buttonGroup;
+			}
+		}
+
+		private bool _isReady => IsNodeReady() && tabContainer is not null & tabs is not null;
+	}
+}