[olympic/studio] Add ig::IndentStackItem

src/olympic/studio/modlib/include/studio/imguiutil.hpp

@@ -20,6 +20,14 @@ class IDStackItem {
 		~IDStackItem() noexcept;
 };
 
+class IndentStackItem {
+	private:
+		float m_indent{};
+	public:
+		explicit IndentStackItem(float id) noexcept;
+		~IndentStackItem() noexcept;
+};
+
 void centerNextWindow(turbine::Context &ctx) noexcept;
 
 bool PushButton(ox::CStringView lbl, ImVec2 const&btnSz = BtnSz) noexcept;

src/olympic/studio/modlib/src/imguiutil.cpp

@@ -24,6 +24,16 @@ IDStackItem::~IDStackItem() noexcept {
 	ImGui::PopID();
 }
 
+
+IndentStackItem::IndentStackItem(float indent) noexcept: m_indent(indent) {
+	ImGui::Indent(m_indent);
+}
+
+IndentStackItem::~IndentStackItem() noexcept {
+	ImGui::Indent(-m_indent);
+}
+
+
 void centerNextWindow(turbine::Context &ctx) noexcept {
 	auto const sz = turbine::getScreenSize(ctx);
 	auto const screenW = static_cast<float>(sz.width);