[nostalgia,studio] Make studio a library

src/studio/applib/src/projectexplorer.cpp

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2016 - 2023 Gary Talent (gary@drinkingtea.net). All rights reserved.
+ */
+
+#include <algorithm>
+
+#include <imgui.h>
+
+#include "projectexplorer.hpp"
+
+static ox::Result<ox::UniquePtr<ProjectTreeModel>>
+buildProjectTreeModel(ProjectExplorer *explorer, ox::CRStringView name, ox::CRStringView path, ProjectTreeModel *parent) noexcept {
+	const auto fs = explorer->romFs();
+	oxRequire(stat, fs->stat(path));
+	auto out = ox::make_unique<ProjectTreeModel>(explorer, name, parent);
+	if (stat.fileType == ox::FileType::Directory) {
+		oxRequireM(children, fs->ls(path));
+		std::sort(children.begin(), children.end());
+		ox::Vector<ox::UniquePtr<ProjectTreeModel>> outChildren;
+		for (const auto &childName : children) {
+			if (childName[0] != '.') {
+				const auto childPath = ox::sfmt("{}/{}", path, childName);
+				oxRequireM(child, buildProjectTreeModel(explorer, childName, childPath, out.get()));
+				outChildren.emplace_back(std::move(child));
+			}
+		}
+		out->setChildren(std::move(outChildren));
+	}
+	return out;
+}
+
+ProjectExplorer::ProjectExplorer(turbine::Context *ctx) noexcept {
+	m_ctx = ctx;
+}
+
+void ProjectExplorer::draw(turbine::Context *ctx) noexcept {
+	const auto viewport = ImGui::GetMainViewport();
+	ImGui::SetNextWindowPos(ImVec2(viewport->Pos.x, viewport->Pos.y + 20));
+	ImGui::SetNextWindowSize(ImVec2(313, viewport->Size.y - 20));
+	const auto flags = ImGuiWindowFlags_NoTitleBar
+	                 | ImGuiWindowFlags_NoResize
+	                 | ImGuiWindowFlags_NoMove
+	                 | ImGuiWindowFlags_NoScrollbar
+	                 | ImGuiWindowFlags_NoSavedSettings;
+	ImGui::Begin("ProjectExplorer", nullptr, flags);
+	ImGui::SetNextItemOpen(true);
+	if (m_treeModel) {
+		m_treeModel->draw(ctx);
+	}
+	ImGui::End();
+}
+
+void ProjectExplorer::setModel(ox::UniquePtr<ProjectTreeModel> model) noexcept {
+	m_treeModel = std::move(model);
+}
+
+ox::Error ProjectExplorer::refreshProjectTreeModel(ox::CRStringView) noexcept {
+	oxRequireM(model, buildProjectTreeModel(this, "Project", "/", nullptr));
+	setModel(std::move(model));
+	return OxError(0);
+}