Examples: SDL: Removed SDL_HAS_WARP_MOUSE_GLOBAL in the non-viewport branch. (#1954) (+1 squashed commits)

examples/imgui_impl_sdl.cpp

@@ -38,7 +38,6 @@
 // (the multi-viewports feature requires SDL features supported from SDL 2.0.5+)
 #include <SDL.h>
 #include <SDL_syswm.h>
-#define SDL_HAS_WARP_MOUSE_GLOBAL           SDL_VERSION_ATLEAST(2,0,4)
 
 #define SDL_HAS_CAPTURE_MOUSE               SDL_VERSION_ATLEAST(2,0,4)
 #define SDL_HAS_VULKAN                      SDL_VERSION_ATLEAST(2,0,6)
@@ -119,9 +118,7 @@ static bool    ImGui_ImplSDL2_Init(SDL_Window* window)
     // Setup back-end capabilities flags
     ImGuiIO& io = ImGui::GetIO();
     io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;       // We can honor GetMouseCursor() values (optional)
-#if SDL_HAS_WARP_MOUSE_GLOBAL
     io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;        // We can honor io.WantSetMousePos requests (optional, rarely used)
-#endif
 
     // Keyboard mapping. ImGui will use those indices to peek into the io.KeysDown[] array.
     io.KeyMap[ImGuiKey_Tab] = SDL_SCANCODE_TAB;
@@ -203,15 +200,12 @@ void ImGui_ImplSDL2_Shutdown()
 static void ImGui_ImplSDL2_UpdateMousePosAndButtons()
 {
     ImGuiIO& io = ImGui::GetIO();
-    const ImVec2 mouse_pos_backup = io.MousePos;
-    io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
 
     // Set OS mouse position if requested (rarely used, only when ImGuiConfigFlags_NavEnableSetMousePos is enabled by user)
-    // (When multi-viewports are enabled, all imgui positions are same as OS positions.)
-#if SDL_HAS_WARP_MOUSE_GLOBAL
     if (io.WantSetMousePos)
-        SDL_WarpMouseGlobal((int)mouse_pos_backup.x, (int)mouse_pos_backup.y);
-#endif
+        SDL_WarpMouseInWindow(g_Window, (int)io.MousePos.x, (int)io.MousePos.y);
+    else
+        io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
 
     int mx, my;
     Uint32 mouse_buttons = SDL_GetMouseState(&mx, &my);