selection_menu: Move it to it's dedicated class

src/selection_menu.cpp

@@ -0,0 +1,109 @@
+/*
+* File name: selection_menu.cpp
+* Author: lejulien
+* Date created: 13-01-2026 22:12:44
+// Date modified: 13-01-2026 22:18:58
+* ------
+*/
+
+#include <unistd.h>
+#include <iostream>
+#include <fstream>
+#include <filesystem>
+
+#include <selection_menu.hpp>
+
+namespace gol {
+
+SelectionMenu::SelectionMenu(std::shared_ptr<ctx> context): context_(context) {
+  selectionTexture_ = LoadRenderTexture(200, 200);
+  patern_name_[0] = '\0';
+
+}
+
+SelectionMenu::~SelectionMenu() {
+  UnloadRenderTexture(selectionTexture_);
+}
+
+void SelectionMenu::update() {
+    if (!sel_ctrl_) {
+      patern_name_[0] = '\0';
+    }
+}
+
+void SelectionMenu::open() {
+  sel_ctrl_ = true;
+}
+
+void SelectionMenu::setSelection(std::vector<uint32_t> selection) {
+  sel_data_ = selection;
+}
+
+void SelectionMenu::display() {
+  if (sel_ctrl_) {
+    BeginTextureMode(selectionTexture_);
+    ClearBackground(BLACK);
+    auto max_size = (sel_data_[0] > sel_data_[1]) ? sel_data_[0] : sel_data_[1];
+    int fitted_width = 200 / max_size;
+    auto sel_it = sel_data_.begin();
+    sel_it += 2; // skip dimensions
+    for (int j = 0; j < sel_data_[1]; j++) {
+      for (int i = 0; i < sel_data_[0]; i++) {
+        if (*sel_it == 1) {
+          DrawRectangle(i * fitted_width, (sel_data_[1] -j-1) * fitted_width, fitted_width, fitted_width, WHITE);
+        }
+        sel_it++;
+      }
+    }
+    EndTextureMode();
+    ImGuiWindowFlags settings_flags =
+        ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoResize;
+    ImGui::Begin("Selection", &sel_ctrl_, settings_flags);
+    rlImGuiImageSize(&selectionTexture_.texture, 200, 200);
+    ImGui::InputText("patern_name", patern_name_, 255);
+    if (ImGui::Button("Save")) {
+      char path_buf[1024];
+      ssize_t len = readlink("/proc/self/exe", path_buf, sizeof(path_buf)-1);
+      if (len != -1) {
+        // Create paterns dir if not present
+        std::filesystem::path paterns_dir = std::filesystem::path(path_buf).parent_path() / "paterns";
+        if (!std::filesystem::exists(paterns_dir) && !std::filesystem::create_directory(paterns_dir)) {
+          std::cerr << "Failed to create paterns directory" << std::endl;
+        } else { // Could be optimized by early returning in a function
+          std::ofstream patern_file;
+          paterns_dir += '/';
+          paterns_dir += patern_name_;
+          patern_file.open(paterns_dir);
+          if (!patern_file) {
+            std::cerr << "Failed to create the patern file" << std::endl;
+          } else {
+            auto sel_it = sel_data_.begin();
+            sel_it += 2; // skip dimensions
+            patern_file << sel_data_[0];
+            patern_file << "|"; // Separator needed to split as ascii values
+            patern_file << sel_data_[1];
+            patern_file << "|"; // Separator needed to split as ascii values
+            for (int j = 0; j < sel_data_[1]; j++) {
+              for (int i = 0; i < sel_data_[0]; i++) {
+                patern_file << std::to_string(*sel_it);
+                if (*sel_it == 1) {
+                }
+                sel_it++;
+              }
+            }
+            patern_file << std::flush;
+            patern_file.close();
+          }
+        }
+        sel_ctrl_ = false;
+      }
+    }
+    ImGui::SameLine();
+    if (ImGui::Button("Discard")) {
+      sel_ctrl_ = false;
+    }
+    ImGui::End();
+  }
+}
+
+} // namespace gol