From 173d3f4bc7f2977b9f1ba924525163563d4574f3 Mon Sep 17 00:00:00 2001
From: Gary Talent <gary@drinkingtea.net>
Date: Fri, 19 Jan 2024 01:09:10 -0600
Subject: [PATCH] [olympic/studio] Add PushButton, PopupBtns, ComboBox, and
 IDStackItem to ImGui utils

---
 .../modlib/include/studio/imguiutil.hpp       | 30 ++++++++++++++
 src/olympic/studio/modlib/src/imguiutil.cpp   | 41 +++++++++++++++++++
 2 files changed, 71 insertions(+)

diff --git a/src/olympic/studio/modlib/include/studio/imguiutil.hpp b/src/olympic/studio/modlib/include/studio/imguiutil.hpp
index d72d9205..f92ea7fb 100644
--- a/src/olympic/studio/modlib/include/studio/imguiutil.hpp
+++ b/src/olympic/studio/modlib/include/studio/imguiutil.hpp
@@ -2,12 +2,42 @@
  * Copyright 2016 - 2024 Gary Talent (gary@drinkingtea.net). All rights reserved.
  */
 
+#pragma once
+
 #include <imgui.h>
 
 #include <turbine/context.hpp>
 
 namespace studio::ig {
 
+inline constexpr auto BtnSz = ImVec2{50, 22};
+
+template<typename T>
+class IDStackItem {
+	private:
+		T m_id;
+	public:
+		explicit IDStackItem(T id) noexcept: m_id(id) {
+			ImGui::PushID(m_id);
+		}
+		~IDStackItem() noexcept {
+			ImGui::PopID();
+		}
+};
+
 void centerNextWindow(turbine::Context &ctx) noexcept;
 
+bool PushButton(ox::CStringView lbl, ImVec2 const&btnSz = BtnSz) noexcept;
+
+void PopupBtns(float popupWidth, bool &popupOpen);
+
+/**
+ *
+ * @param lbl
+ * @param list
+ * @param selectedIdx
+ * @return true if new value selected, false otherwise
+ */
+bool ComboBox(ox::CStringView lbl, ox::SpanView<ox::String> list, size_t &selectedIdx) noexcept;
+
 }
\ No newline at end of file
diff --git a/src/olympic/studio/modlib/src/imguiutil.cpp b/src/olympic/studio/modlib/src/imguiutil.cpp
index f4e00900..e52f3153 100644
--- a/src/olympic/studio/modlib/src/imguiutil.cpp
+++ b/src/olympic/studio/modlib/src/imguiutil.cpp
@@ -6,6 +6,8 @@
 
 #include <turbine/gfx.hpp>
 
+#include <studio/imguiutil.hpp>
+
 namespace studio::ig {
 
 void centerNextWindow(turbine::Context &ctx) noexcept {
@@ -16,4 +18,43 @@ void centerNextWindow(turbine::Context &ctx) noexcept {
 	ImGui::SetNextWindowPos(ImVec2(screenW / mod, screenH / mod), ImGuiCond_Always, ImVec2(0.5f, 0.5f));
 }
 
+bool PushButton(ox::CStringView lbl, ImVec2 const&btnSz) noexcept {
+	return ImGui::Button(lbl.c_str(), btnSz);
+}
+
+void PopupBtns(float popupWidth, bool &popupOpen) {
+	constexpr auto btnSz = ImVec2{50, BtnSz.y};
+	ImGui::Separator();
+	ImGui::SetCursorPosX(popupWidth - 118);
+	if (ImGui::Button("OK", btnSz)) {
+		ImGui::CloseCurrentPopup();
+		popupOpen = false;
+	}
+	ImGui::SameLine();
+	if (ImGui::Button("Cancel", btnSz)) {
+		ImGui::CloseCurrentPopup();
+		popupOpen = false;
+	}
+}
+
+bool ComboBox(
+		ox::CStringView lbl,
+		ox::SpanView<ox::String> list,
+		size_t &selectedIdx) noexcept {
+	bool out{};
+	auto const first = selectedIdx < list.size() ? list[selectedIdx].c_str() : "";
+	if (ImGui::BeginCombo(lbl.c_str(), first, 0)) {
+		for (auto i = 0u; i < list.size(); ++i) {
+			const auto selected = (selectedIdx == i);
+			if (ImGui::Selectable(list[i].c_str(), selected) && selectedIdx != i) {
+				selectedIdx = i;
+				//oxLogError(m_model.setPalette(list[n]));
+				out = true;
+			}
+		}
+		ImGui::EndCombo();
+	}
+	return out;
+}
+
 }