internal
MemoryEditor make_memory_editor()
{
  MemoryEditor mem_edit;
  // mem_edit.ReadOnly = true;
  mem_edit.Cols = 32;
  return mem_edit;
}

internal
void update_and_render(Arena *arena, App_State &app, f32 delta_time)
{
  ImGui::SetNextWindowPos({ 0, 0 });
  ImGui::SetNextWindowSize({ (f32)app.win_data.width, (f32)app.win_data.height });

  Temp scratch = temp_begin(arena);
  defer { temp_end(scratch); };

  u64 text_buf_size = min(app.inspected_file_size * 2, 2048);
  char *text_buf = arena_push_array_no_zero<char>(scratch.arena, text_buf_size + 1);
  // TODO: convert file content to human readable
  for (u64 i = 0; i < text_buf_size / 2; ++i)
    sprintf(&text_buf[2 * i], "%02X", app.inspected_fmem[i]);
  text_buf[text_buf_size] = 0;
  
  if (ImGui::Begin("main")) {
    // ImGui::SetNextWindowContentSize({ 500, 600 });
    // ImGui::SetCursorX(30);
    // ImGui::TextWrapped("%s", text_buf);
    static MemoryEditor mem_edit = make_memory_editor();
    mem_edit.DrawWindow("Hex View", app.inspected_fmem, app.inspected_file_size);
    ImGui::End();
  }
}