selection_menu: Move it to it's dedicated class

includes/context.hpp

@@ -18,12 +18,14 @@ class Render;
 
 namespace gol {
 class SettingsMenu;
+class SelectionMenu;
 
 typedef struct ctx {
   std::shared_ptr<World> world = nullptr;
   std::shared_ptr<Rules> rules = nullptr;
   std::shared_ptr<Render> render = nullptr;
   std::shared_ptr<SettingsMenu> settings_menu = nullptr;
+  std::shared_ptr<SelectionMenu> selection_menu = nullptr;
   nlohmann::json config_json;
 } ctx;
 

includes/selection_menu.hpp

@@ -0,0 +1,38 @@
+/*
+* File name: selection_menu.hpp
+* Author: lejulien
+* Date created: 13-01-2026 22:12:44
+// Date modified: 13-01-2026 22:18:58
+* ------
+*/
+
+#pragma once
+
+#include <memory>
+#include <string>
+
+#include <imgui.h>
+#include <raylib.h>
+#include <rlImGui.h>
+
+#include <context.hpp>
+
+namespace gol {
+
+class SelectionMenu {
+public:
+  SelectionMenu(std::shared_ptr<ctx> context);
+  ~SelectionMenu();
+  void update();
+  void display();
+  void setSelection(std::vector<uint32_t> selection);
+  void open();
+private:
+  std::shared_ptr<ctx> context_;
+  RenderTexture2D selectionTexture_;
+  std::vector<uint32_t> sel_data_ = {};
+  bool sel_ctrl_ = false;
+  char patern_name_[255];
+};
+
+} // namespace gol