sdl_widget_list.cpp

#include "sdl_widget_list.hpp"
#include "sdl_blend_mode_guard.hpp"
 
SdlWidgetList::~SdlWidgetList() = default;
 
bool SdlWidgetList::reset(const std::string& title, size_t width, size_t height)
{
  auto w = WINPR_ASSERTING_INT_CAST(int, width);
  auto h = WINPR_ASSERTING_INT_CAST(int, height);
  SDL_Renderer* renderer = nullptr;
  SDL_Window* window = nullptr;
  auto rc = SDL_CreateWindowAndRenderer(title.c_str(), w, h,
                                        SDL_WINDOW_MOUSE_FOCUS | SDL_WINDOW_INPUT_FOCUS |
                                            SDL_WINDOW_ALWAYS_ON_TOP | SDL_WINDOW_UTILITY |
                                            SDL_WINDOW_INPUT_FOCUS | SDL_WINDOW_MOUSE_FOCUS,
                                        &window, &renderer);
  _renderer = std::shared_ptr<SDL_Renderer>(renderer, SDL_DestroyRenderer);
  _window = std::shared_ptr<SDL_Window>(window, SDL_DestroyWindow);
  if (!rc)
    widget_log_error(rc, "SDL_CreateWindowAndRenderer");
  return rc;
}
 
bool SdlWidgetList::visible() const
{
  if (!_window || !_renderer)
    return false;
 
  auto flags = SDL_GetWindowFlags(_window.get());
  return (flags & (SDL_WINDOW_HIDDEN | SDL_WINDOW_MINIMIZED)) == 0;
}
 
bool SdlWidgetList::clearWindow()
{
  if (!_renderer)
    return false;
 
  SdlBlendModeGuard guard(_renderer, SDL_BLENDMODE_NONE);
  const auto drc = SDL_SetRenderDrawColor(_renderer.get(), _backgroundcolor.r, _backgroundcolor.g,
                                          _backgroundcolor.b, _backgroundcolor.a);
  if (widget_log_error(drc, "SDL_SetRenderDrawColor"))
    return false;
 
  const auto rcls = SDL_RenderClear(_renderer.get());
  return !widget_log_error(rcls, "SDL_RenderClear");
}
 
bool SdlWidgetList::update()
{
  if (!visible())
    return true;
 
  if (!clearWindow())
    return false;
  if (!updateInternal())
    return false;
  if (!_buttons.update())
    return false;
  auto rc = SDL_RenderPresent(_renderer.get());
  if (!rc)
  {
    SDL_LogWarn(SDL_LOG_CATEGORY_APPLICATION, "[%s] SDL_RenderPresent failed with %s", __func__,
                SDL_GetError());
  }
  return rc;
}