Implementation for menu bar

src/single_window/control_window.cpp

@@ -0,0 +1,18 @@
+#include "render.h"
+
+int Render::ControlWindow() {
+  ImGui::PushStyleColor(ImGuiCol_MenuBarBg, ImVec4(0, 0, 0, 0));
+  static bool a, b, c, d, e;
+  ImGui::SetNextWindowPos(ImVec2(0, 0), ImGuiCond_Always);
+  ImGui::BeginChild("ControlWindow",
+                    ImVec2(main_window_width_, menu_window_height_),
+                    ImGuiChildFlags_Border, ImGuiWindowFlags_NoScrollbar);
+
+  ControlBar();
+
+  ImGui::SetWindowFontScale(1.0f);
+  ImGui::PopStyleColor();
+  ImGui::EndChild();
+
+  return 0;
+}