rect sdl_basic_services::desktop_rect(uint32_t aDisplayIndex) const
{
iDesktopWorkAreas.clear();
#ifdef WIN32
EnumDisplayMonitors(NULL, NULL, &enum_display_monitors_proc, reinterpret_cast<LPARAM>(this));
#else
for (int i = 0; i < display_count(); ++i)
{
SDL_Rect rectDisplayBounds;
SDL_GetDisplayBounds(i, &rectDisplayBounds);
iDesktopWorkAreas.push_back(rect{ point{ rectDisplayBounds.x, rectDisplayBounds.y }, size{ rectDisplayBounds.w, rectDisplayBounds.h } });
}
#endif
if (aDisplayIndex >= iDesktopWorkAreas.size())
throw bad_display_index();
return iDesktopWorkAreas[aDisplayIndex];
}
rect surface_manager::desktop_rect(const i_surface& aSurface) const
{
#ifdef WIN32
HMONITOR monitor = MonitorFromWindow(reinterpret_cast<HWND>(aSurface.native_surface().native_handle()), MONITOR_DEFAULTTONEAREST);
MONITORINFOEX mi;
mi.cbSize = sizeof(mi);
GetMonitorInfo(monitor, &mi);
return basic_rect<LONG>{ basic_point<LONG>{ mi.rcWork.left, mi.rcWork.top }, basic_size<LONG>{ mi.rcWork.right - mi.rcWork.left, mi.rcWork.bottom - mi.rcWork.top } };
#else
/* todo */
rect rectSurface{ aSurface.surface_position(), aSurface.surface_size() };
std::multimap<double, uint32_t> matches;
for (uint32_t i = 0; i < display_count(); ++i)
{
rect rectDisplay = desktop_rect(i);
rect rectIntersection = rectDisplay.intersection(rectSurface);
if (!rectIntersection.empty())
matches[rectIntersection.width() * rectIntersection.height()] = i;
}
if (matches.empty())
return desktop_rect(0);
return desktop_rect(matches.rbegin()->second);
#endif
}
