Squashed 'deps/nostalgia/' changes from 124c7029..f128664a

f128664a [olympic/studio] Add ig::IndentStackItem
e84df780 [glutils] Add ProgramSource::vboLen
caa59f37 [nostalgia/core] Add functions for mapping tile idx to subsheet
1cf09433 [nostalgia/core/studio] Cleanup TileSheetEditor with new GlUtils helpers
9948346c [ox/model] Fix clangd false alarm
aa8200be [glutils] Add helper functions for setting up shaders

git-subtree-dir: deps/nostalgia
git-subtree-split: f128664a81b817aaf066de02cc3a09650958ace9

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);