feat(editor): user-defined model sets, random insert from set, tabbed editor panel

editor/editorModelSets.hpp

@@ -0,0 +1,56 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#pragma once
+
+#include <string>
+#include <vector>
+
+// user-defined sets of node templates (e.g. "deciduous trees", "bushes"), used by the editor brush,
+// random insert and area fill. stored next to the user's ini files
+struct editor_model_set
+{
+	int id{0}; // runtime identifier, stable while the editor runs (renames don't break references)
+	std::string name;
+	std::vector<std::string> templates; // node definitions, one per entry, same format as nodebank entries
+	std::vector<std::string> labels; // short readable names of the templates, cached for the UI
+};
+
+class editorModelSets
+{
+  public:
+	bool load();
+	bool save() const;
+
+	std::vector<editor_model_set> const &sets() const
+	{
+		return m_sets;
+	}
+	editor_model_set const *find(int Id) const;
+	// all modifying methods save the sets right away
+	// returns: id of the new set
+	int create(std::string const &Name, std::vector<std::string> const &Templates = {});
+	void remove(int Id);
+	void rename(int Id, std::string const &Name);
+	void add(int Id, std::vector<std::string> const &Templates);
+	void erase(int Id, std::size_t Index);
+	void clear(int Id);
+	// name not used by any other set, built from specified base
+	std::string unique_name(std::string const &Base, int IgnoreId = 0) const;
+	// short readable name of a node template (model file and texture)
+	static std::string label(std::string const &Template);
+
+  private:
+	editor_model_set *find_(int Id);
+
+	std::vector<editor_model_set> m_sets;
+	int m_nextid{1};
+};
+
+extern editorModelSets EditorModelSets;