Merge pull request #173 from Damon3000s/add-scoped-disabled

Add scoped disabled

ImGuiWidgets/ScopedDisable.cs

@@ -0,0 +1,23 @@
+namespace ktsu.ImGuiWidgets;
+
+using ImGuiNET;
+using ScopedAction;
+
+/// <summary>
+/// Represents a scoped disable action which will set Dear ImGui elements as functionally and visually disabled until
+/// the class is disposed.
+/// </summary>
+public class ScopedDisable : ScopedAction
+{
+	/// <summary>
+	/// Note as per the Dear ImGui documentation: "Those can be nested, but it cannot
+	/// be used to enable an already disabled section (a single BeginDisabled(true)
+	/// in the stack is enough to keep everything disabled)"
+	/// </summary>
+	/// <param name="enabled">Should the elements within the scope be disabled</param>
+	public ScopedDisable(bool enabled)
+	{
+		ImGui.BeginDisabled(enabled);
+		OnClose = ImGui.EndDisabled;
+	}
+}

ImGuiWidgetsDemo/ImGuiWidgetsDemo.cs

@@ -114,6 +114,19 @@ private void ShowLeftPanel(float size)
 		ImGuiWidgets.Combo("String Combo", ref selectedStringValue, possibleStringValues);
 		ImGuiWidgets.Combo("Strong String Combo", ref selectedStrongString, possibleStrongStringValues);
 
+
+		using (new ScopedDisable(true))
+		{
+			ImGui.SeparatorText("Disabled");
+
+			bool value = true;
+			int currentItem = 0;
+			string[] items = ["Item 1", "Item 2", "Item 3"];
+
+			ImGui.Checkbox("Disabled Checkbox", ref value);
+			ImGui.Combo("Disabled Combo", ref currentItem, items, items.Length);
+		}
+
 		ImGui.SeparatorText("Tree");
 		using (var tree = new ImGuiWidgets.Tree())
 		{