feat(editor): presets of the track properties, applied on the selected tracks

editor/editorTrackPresets.hpp

@@ -0,0 +1,58 @@
+/*
+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 <utility>
+#include <vector>
+
+// user-defined presets of the properties of tracks (rails, trackbed, sleepers...), taken from a track and put on others
+// with the choice of what they overwrite. stored next to the user's ini files, like the model sets
+struct editor_track_preset
+{
+	int id{0}; // runtime identifier, stable while the editor runs (renames don't break references)
+	std::string name;
+	std::string from; // name of the track the values were taken from
+	// the values of the properties as the track inspector reads and writes them, by their keys
+	std::vector<std::pair<std::string, std::string>> values;
+	// the groups of the properties the preset overwrites, by their keys; the other values of it are kept but left out
+	std::vector<std::string> groups;
+};
+
+class editorTrackPresets
+{
+  public:
+	bool load();
+	bool save() const;
+
+	std::vector<editor_track_preset> const &presets() const
+	{
+		return m_presets;
+	}
+	editor_track_preset const *find(int Id) const;
+	// all modifying methods save the presets right away
+	// returns: id of the new preset
+	int create(std::string const &Name, std::string const &From, std::vector<std::pair<std::string, std::string>> const &Values, std::vector<std::string> const &Groups);
+	void remove(int Id);
+	void rename(int Id, std::string const &Name);
+	// the values taken again, from another track or the same one changed
+	void update(int Id, std::string const &From, std::vector<std::pair<std::string, std::string>> const &Values);
+	void set_groups(int Id, std::vector<std::string> const &Groups);
+	// name not used by any other preset, built from specified base
+	std::string unique_name(std::string const &Base, int IgnoreId = 0) const;
+
+  private:
+	editor_track_preset *find_(int Id);
+
+	std::vector<editor_track_preset> m_presets;
+	int m_nextid{1};
+};
+
+extern editorTrackPresets EditorTrackPresets;