text: /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
  //
  // TGUI - Texus' Graphical User Interface
  // Copyright (C) 2012-2021 Bruno Van de Velde (vdv_b@tgui.eu)
  //
  // This software is provided 'as-is', without any express or implied warranty.
  // In no event will the authors be held liable for any damages arising from the use of this software.
  //
  // Permission is granted to anyone to use this software for any purpose,
  // including commercial applications, and to alter it and redistribute it freely,
  // subject to the following restrictions:
  //
  // 1. The origin of this software must not be misrepresented;
  //    you must not claim that you wrote the original software.
  //    If you use this software in a product, an acknowledgment
  //    in the product documentation would be appreciated but is not required.
  //
  // 2. Altered source versions must be plainly marked as such,
  //    and must not be misrepresented as being the original software.
  //
  // 3. This notice may not be removed or altered from any source distribution.
  //
  /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
  
  
  #ifndef TGUI_BACKEND_RENDERER_HPP
  #define TGUI_BACKEND_RENDERER_HPP
  
  #include <TGUI/Backend/Renderer/BackendText.hpp>
  #include <TGUI/Backend/Renderer/BackendTexture.hpp>
  #include <memory>
  
  /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
  
  namespace tgui
  {
      /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
      /// @brief Base class for the backend renderer, which is responsible for creating text and texture objects
      /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
      class TGUI_API BackendRenderer
      {
      public:
  
          /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
          /// @brief Virtual destructor
          /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
          virtual ~BackendRenderer() = default;
  
  
          /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
          /// @brief Creates a new empty text object
          /// @return Shared pointer to a new text object
          /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
          virtual std::shared_ptr<BackendText> createText()
          {
              return std::make_shared<BackendText>();
          }
  
  
          /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
          /// @brief Creates a new empty texture object
          /// @return Shared pointer to a new texture object
          /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
          virtual std::shared_ptr<BackendTexture> createTexture() = 0;
  
  
          /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
          /// @brief Get the maximum allowed texture size
          ///
          /// @return Maximum width and height that you should try to use in a single texture
          ///
          /// This maximum size is defined by the graphics driver. Most likely this will return 8192 or 16384.
          /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
  #ifdef TGUI_NEXT
          virtual unsigned int getMaximumTextureSize() = 0;
  #else
          virtual unsigned int getMaximumTextureSize() { return 8192; }
  #endif
      };
  
  #ifndef TGUI_REMOVE_DEPRECATED_CODE
      using BackendRendererBase TGUI_DEPRECATED("BackendRendererBase was renamed to BackendRenderer") = BackendRenderer;
  #endif
  }
  
  /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
  
  #endif // TGUI_BACKEND_RENDERER_HPP
  