97#include "imgui_impl_sdl2.h"
100#if defined(__clang__)
101#pragma clang diagnostic push
102#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion"
108#include <SDL_syswm.h>
110#include <TargetConditionals.h>
113#include <emscripten/em_js.h>
116#if SDL_VERSION_ATLEAST(2,0,4) && !defined(__EMSCRIPTEN__) && !defined(__ANDROID__) && !(defined(__APPLE__) && TARGET_OS_IOS) && !defined(__amigaos4__)
117#define SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE 1
119#define SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE 0
121#define SDL_HAS_WINDOW_ALPHA SDL_VERSION_ATLEAST(2,0,5)
122#define SDL_HAS_ALWAYS_ON_TOP SDL_VERSION_ATLEAST(2,0,5)
123#define SDL_HAS_USABLE_DISPLAY_BOUNDS SDL_VERSION_ATLEAST(2,0,5)
124#define SDL_HAS_PER_MONITOR_DPI SDL_VERSION_ATLEAST(2,0,4)
125#define SDL_HAS_VULKAN SDL_VERSION_ATLEAST(2,0,6)
126#define SDL_HAS_DISPLAY_EVENT SDL_VERSION_ATLEAST(2,0,9)
127#define SDL_HAS_SHOW_WINDOW_ACTIVATION_HINT SDL_VERSION_ATLEAST(2,0,18)
129extern "C" {
extern DECLSPEC
void SDLCALL SDL_Vulkan_GetDrawableSize(SDL_Window* window,
int* w,
int* h); }
131static const Uint32 SDL_WINDOW_VULKAN = 0x10000000;
168 return ImGui::GetCurrentContext() ? (
ImGui_ImplSDL2_Data*)ImGui::GetIO().BackendPlatformUserData :
nullptr;
172static void ImGui_ImplSDL2_UpdateMonitors();
173static void ImGui_ImplSDL2_InitPlatformInterface(SDL_Window* window,
void* sdl_gl_context);
174static void ImGui_ImplSDL2_ShutdownPlatformInterface();
177static const char* ImGui_ImplSDL2_GetClipboardText(ImGuiContext*)
186static void ImGui_ImplSDL2_SetClipboardText(ImGuiContext*,
const char* text)
188 SDL_SetClipboardText(text);
192static void ImGui_ImplSDL2_PlatformSetImeData(ImGuiContext*, ImGuiViewport* viewport, ImGuiPlatformImeData* data)
194 if (data->WantVisible)
197 r.x = (int)(data->InputPos.x - viewport->Pos.x);
198 r.y = (int)(data->InputPos.y - viewport->Pos.y + data->InputLineHeight);
200 r.h = (int)data->InputLineHeight;
201 SDL_SetTextInputRect(&r);
211 case SDLK_TAB:
return ImGuiKey_Tab;
212 case SDLK_LEFT:
return ImGuiKey_LeftArrow;
213 case SDLK_RIGHT:
return ImGuiKey_RightArrow;
214 case SDLK_UP:
return ImGuiKey_UpArrow;
215 case SDLK_DOWN:
return ImGuiKey_DownArrow;
216 case SDLK_PAGEUP:
return ImGuiKey_PageUp;
217 case SDLK_PAGEDOWN:
return ImGuiKey_PageDown;
218 case SDLK_HOME:
return ImGuiKey_Home;
219 case SDLK_END:
return ImGuiKey_End;
220 case SDLK_INSERT:
return ImGuiKey_Insert;
221 case SDLK_DELETE:
return ImGuiKey_Delete;
222 case SDLK_BACKSPACE:
return ImGuiKey_Backspace;
223 case SDLK_SPACE:
return ImGuiKey_Space;
224 case SDLK_RETURN:
return ImGuiKey_Enter;
225 case SDLK_ESCAPE:
return ImGuiKey_Escape;
226 case SDLK_QUOTE:
return ImGuiKey_Apostrophe;
227 case SDLK_COMMA:
return ImGuiKey_Comma;
228 case SDLK_MINUS:
return ImGuiKey_Minus;
229 case SDLK_PERIOD:
return ImGuiKey_Period;
230 case SDLK_SLASH:
return ImGuiKey_Slash;
231 case SDLK_SEMICOLON:
return ImGuiKey_Semicolon;
232 case SDLK_EQUALS:
return ImGuiKey_Equal;
233 case SDLK_LEFTBRACKET:
return ImGuiKey_LeftBracket;
234 case SDLK_BACKSLASH:
return ImGuiKey_Backslash;
235 case SDLK_RIGHTBRACKET:
return ImGuiKey_RightBracket;
236 case SDLK_BACKQUOTE:
return ImGuiKey_GraveAccent;
237 case SDLK_CAPSLOCK:
return ImGuiKey_CapsLock;
238 case SDLK_SCROLLLOCK:
return ImGuiKey_ScrollLock;
239 case SDLK_NUMLOCKCLEAR:
return ImGuiKey_NumLock;
240 case SDLK_PRINTSCREEN:
return ImGuiKey_PrintScreen;
241 case SDLK_PAUSE:
return ImGuiKey_Pause;
242 case SDLK_KP_0:
return ImGuiKey_Keypad0;
243 case SDLK_KP_1:
return ImGuiKey_Keypad1;
244 case SDLK_KP_2:
return ImGuiKey_Keypad2;
245 case SDLK_KP_3:
return ImGuiKey_Keypad3;
246 case SDLK_KP_4:
return ImGuiKey_Keypad4;
247 case SDLK_KP_5:
return ImGuiKey_Keypad5;
248 case SDLK_KP_6:
return ImGuiKey_Keypad6;
249 case SDLK_KP_7:
return ImGuiKey_Keypad7;
250 case SDLK_KP_8:
return ImGuiKey_Keypad8;
251 case SDLK_KP_9:
return ImGuiKey_Keypad9;
252 case SDLK_KP_PERIOD:
return ImGuiKey_KeypadDecimal;
253 case SDLK_KP_DIVIDE:
return ImGuiKey_KeypadDivide;
254 case SDLK_KP_MULTIPLY:
return ImGuiKey_KeypadMultiply;
255 case SDLK_KP_MINUS:
return ImGuiKey_KeypadSubtract;
256 case SDLK_KP_PLUS:
return ImGuiKey_KeypadAdd;
257 case SDLK_KP_ENTER:
return ImGuiKey_KeypadEnter;
258 case SDLK_KP_EQUALS:
return ImGuiKey_KeypadEqual;
259 case SDLK_LCTRL:
return ImGuiKey_LeftCtrl;
260 case SDLK_LSHIFT:
return ImGuiKey_LeftShift;
261 case SDLK_LALT:
return ImGuiKey_LeftAlt;
262 case SDLK_LGUI:
return ImGuiKey_LeftSuper;
263 case SDLK_RCTRL:
return ImGuiKey_RightCtrl;
264 case SDLK_RSHIFT:
return ImGuiKey_RightShift;
265 case SDLK_RALT:
return ImGuiKey_RightAlt;
266 case SDLK_RGUI:
return ImGuiKey_RightSuper;
267 case SDLK_APPLICATION:
return ImGuiKey_Menu;
268 case SDLK_0:
return ImGuiKey_0;
269 case SDLK_1:
return ImGuiKey_1;
270 case SDLK_2:
return ImGuiKey_2;
271 case SDLK_3:
return ImGuiKey_3;
272 case SDLK_4:
return ImGuiKey_4;
273 case SDLK_5:
return ImGuiKey_5;
274 case SDLK_6:
return ImGuiKey_6;
275 case SDLK_7:
return ImGuiKey_7;
276 case SDLK_8:
return ImGuiKey_8;
277 case SDLK_9:
return ImGuiKey_9;
278 case SDLK_a:
return ImGuiKey_A;
279 case SDLK_b:
return ImGuiKey_B;
280 case SDLK_c:
return ImGuiKey_C;
281 case SDLK_d:
return ImGuiKey_D;
282 case SDLK_e:
return ImGuiKey_E;
283 case SDLK_f:
return ImGuiKey_F;
284 case SDLK_g:
return ImGuiKey_G;
285 case SDLK_h:
return ImGuiKey_H;
286 case SDLK_i:
return ImGuiKey_I;
287 case SDLK_j:
return ImGuiKey_J;
288 case SDLK_k:
return ImGuiKey_K;
289 case SDLK_l:
return ImGuiKey_L;
290 case SDLK_m:
return ImGuiKey_M;
291 case SDLK_n:
return ImGuiKey_N;
292 case SDLK_o:
return ImGuiKey_O;
293 case SDLK_p:
return ImGuiKey_P;
294 case SDLK_q:
return ImGuiKey_Q;
295 case SDLK_r:
return ImGuiKey_R;
296 case SDLK_s:
return ImGuiKey_S;
297 case SDLK_t:
return ImGuiKey_T;
298 case SDLK_u:
return ImGuiKey_U;
299 case SDLK_v:
return ImGuiKey_V;
300 case SDLK_w:
return ImGuiKey_W;
301 case SDLK_x:
return ImGuiKey_X;
302 case SDLK_y:
return ImGuiKey_Y;
303 case SDLK_z:
return ImGuiKey_Z;
304 case SDLK_F1:
return ImGuiKey_F1;
305 case SDLK_F2:
return ImGuiKey_F2;
306 case SDLK_F3:
return ImGuiKey_F3;
307 case SDLK_F4:
return ImGuiKey_F4;
308 case SDLK_F5:
return ImGuiKey_F5;
309 case SDLK_F6:
return ImGuiKey_F6;
310 case SDLK_F7:
return ImGuiKey_F7;
311 case SDLK_F8:
return ImGuiKey_F8;
312 case SDLK_F9:
return ImGuiKey_F9;
313 case SDLK_F10:
return ImGuiKey_F10;
314 case SDLK_F11:
return ImGuiKey_F11;
315 case SDLK_F12:
return ImGuiKey_F12;
316 case SDLK_F13:
return ImGuiKey_F13;
317 case SDLK_F14:
return ImGuiKey_F14;
318 case SDLK_F15:
return ImGuiKey_F15;
319 case SDLK_F16:
return ImGuiKey_F16;
320 case SDLK_F17:
return ImGuiKey_F17;
321 case SDLK_F18:
return ImGuiKey_F18;
322 case SDLK_F19:
return ImGuiKey_F19;
323 case SDLK_F20:
return ImGuiKey_F20;
324 case SDLK_F21:
return ImGuiKey_F21;
325 case SDLK_F22:
return ImGuiKey_F22;
326 case SDLK_F23:
return ImGuiKey_F23;
327 case SDLK_F24:
return ImGuiKey_F24;
328 case SDLK_AC_BACK:
return ImGuiKey_AppBack;
329 case SDLK_AC_FORWARD:
return ImGuiKey_AppForward;
332 return ImGuiKey_None;
335static void ImGui_ImplSDL2_UpdateKeyModifiers(SDL_Keymod sdl_key_mods)
337 ImGuiIO& io = ImGui::GetIO();
338 io.AddKeyEvent(ImGuiMod_Ctrl, (sdl_key_mods & KMOD_CTRL) != 0);
339 io.AddKeyEvent(ImGuiMod_Shift, (sdl_key_mods & KMOD_SHIFT) != 0);
340 io.AddKeyEvent(ImGuiMod_Alt, (sdl_key_mods & KMOD_ALT) != 0);
341 io.AddKeyEvent(ImGuiMod_Super, (sdl_key_mods & KMOD_GUI) != 0);
344static ImGuiViewport* ImGui_ImplSDL2_GetViewportForWindowID(Uint32 window_id)
346 return ImGui::FindViewportByPlatformHandle((
void*)(intptr_t)window_id);
356 IM_ASSERT(bd !=
nullptr &&
"Context or backend not initialized! Did you call ImGui_ImplSDL2_Init()?");
357 ImGuiIO& io = ImGui::GetIO();
361 case SDL_MOUSEMOTION:
363 if (ImGui_ImplSDL2_GetViewportForWindowID(event->motion.windowID) == NULL)
365 ImVec2 mouse_pos((
float)event->motion.x, (
float)event->motion.y);
366 if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
368 int window_x, window_y;
369 SDL_GetWindowPosition(SDL_GetWindowFromID(event->motion.windowID), &window_x, &window_y);
370 mouse_pos.x += window_x;
371 mouse_pos.y += window_y;
373 io.AddMouseSourceEvent(event->motion.which == SDL_TOUCH_MOUSEID ? ImGuiMouseSource_TouchScreen : ImGuiMouseSource_Mouse);
374 io.AddMousePosEvent(mouse_pos.x, mouse_pos.y);
379 if (ImGui_ImplSDL2_GetViewportForWindowID(event->wheel.windowID) == NULL)
382#if SDL_VERSION_ATLEAST(2,0,18)
383 float wheel_x = -
event->wheel.preciseX;
384 float wheel_y =
event->wheel.preciseY;
386 float wheel_x = -(float)event->wheel.x;
387 float wheel_y = (float)event->wheel.y;
392 io.AddMouseSourceEvent(event->wheel.which == SDL_TOUCH_MOUSEID ? ImGuiMouseSource_TouchScreen : ImGuiMouseSource_Mouse);
393 io.AddMouseWheelEvent(wheel_x, wheel_y);
396 case SDL_MOUSEBUTTONDOWN:
397 case SDL_MOUSEBUTTONUP:
399 if (ImGui_ImplSDL2_GetViewportForWindowID(event->button.windowID) == NULL)
401 int mouse_button = -1;
402 if (event->button.button == SDL_BUTTON_LEFT) { mouse_button = 0; }
403 if (event->button.button == SDL_BUTTON_RIGHT) { mouse_button = 1; }
404 if (event->button.button == SDL_BUTTON_MIDDLE) { mouse_button = 2; }
405 if (event->button.button == SDL_BUTTON_X1) { mouse_button = 3; }
406 if (event->button.button == SDL_BUTTON_X2) { mouse_button = 4; }
407 if (mouse_button == -1)
409 io.AddMouseSourceEvent(event->button.which == SDL_TOUCH_MOUSEID ? ImGuiMouseSource_TouchScreen : ImGuiMouseSource_Mouse);
410 io.AddMouseButtonEvent(mouse_button, (event->type == SDL_MOUSEBUTTONDOWN));
416 if (ImGui_ImplSDL2_GetViewportForWindowID(event->text.windowID) == NULL)
418 io.AddInputCharactersUTF8(event->text.text);
424 if (ImGui_ImplSDL2_GetViewportForWindowID(event->key.windowID) == NULL)
426 ImGui_ImplSDL2_UpdateKeyModifiers((SDL_Keymod)event->key.keysym.mod);
428 io.AddKeyEvent(key, (event->type == SDL_KEYDOWN));
429 io.SetKeyEventNativeData(key, event->key.keysym.sym, event->key.keysym.scancode, event->key.keysym.scancode);
432#if SDL_HAS_DISPLAY_EVENT
433 case SDL_DISPLAYEVENT:
441 case SDL_WINDOWEVENT:
443 ImGuiViewport* viewport = ImGui_ImplSDL2_GetViewportForWindowID(event->window.windowID);
444 if (viewport == NULL)
452 Uint8 window_event =
event->window.event;
453 if (window_event == SDL_WINDOWEVENT_ENTER)
458 if (window_event == SDL_WINDOWEVENT_LEAVE)
460 if (window_event == SDL_WINDOWEVENT_FOCUS_GAINED)
461 io.AddFocusEvent(
true);
462 else if (window_event == SDL_WINDOWEVENT_FOCUS_LOST)
463 io.AddFocusEvent(
false);
464 else if (window_event == SDL_WINDOWEVENT_CLOSE)
465 viewport->PlatformRequestClose =
true;
466 else if (window_event == SDL_WINDOWEVENT_MOVED)
467 viewport->PlatformRequestMove =
true;
468 else if (window_event == SDL_WINDOWEVENT_RESIZED)
469 viewport->PlatformRequestResize =
true;
472 case SDL_CONTROLLERDEVICEADDED:
473 case SDL_CONTROLLERDEVICEREMOVED:
483EM_JS(
void, ImGui_ImplSDL2_EmscriptenOpenURL, (
char const* url), { url = url ? UTF8ToString(url) : null;
if (url) window.open(url,
'_blank'); });
486static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer,
void* sdl_gl_context)
488 ImGuiIO& io = ImGui::GetIO();
489 IMGUI_CHECKVERSION();
490 IM_ASSERT(io.BackendPlatformUserData ==
nullptr &&
"Already initialized a platform backend!");
494 bool mouse_can_use_global_state =
false;
495#if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
496 const char* sdl_backend = SDL_GetCurrentVideoDriver();
497 const char* global_mouse_whitelist[] = {
"windows",
"cocoa",
"x11",
"DIVE",
"VMAN" };
498 for (
int n = 0; n < IM_ARRAYSIZE(global_mouse_whitelist); n++)
499 if (strncmp(sdl_backend, global_mouse_whitelist[n], strlen(global_mouse_whitelist[n])) == 0)
500 mouse_can_use_global_state =
true;
505 io.BackendPlatformUserData = (
void*)bd;
506 io.BackendPlatformName =
"imgui_impl_sdl2";
507 io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;
508 io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;
509 if (mouse_can_use_global_state)
510 io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports;
513 bd->
WindowID = SDL_GetWindowID(window);
525 ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
526 platform_io.Platform_SetClipboardTextFn = ImGui_ImplSDL2_SetClipboardText;
527 platform_io.Platform_GetClipboardTextFn = ImGui_ImplSDL2_GetClipboardText;
528 platform_io.Platform_ClipboardUserData =
nullptr;
529 platform_io.Platform_SetImeDataFn = ImGui_ImplSDL2_PlatformSetImeData;
531 platform_io.Platform_OpenInShellFn = [](ImGuiContext*,
const char* url) { ImGui_ImplSDL2_EmscriptenOpenURL(url);
return true; };
535 ImGui_ImplSDL2_UpdateMonitors();
538 bd->
GamepadMode = ImGui_ImplSDL2_GamepadMode_AutoFirst;
542 bd->
MouseCursors[ImGuiMouseCursor_Arrow] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
543 bd->
MouseCursors[ImGuiMouseCursor_TextInput] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_IBEAM);
544 bd->
MouseCursors[ImGuiMouseCursor_ResizeAll] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEALL);
545 bd->
MouseCursors[ImGuiMouseCursor_ResizeNS] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENS);
546 bd->
MouseCursors[ImGuiMouseCursor_ResizeEW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEWE);
547 bd->
MouseCursors[ImGuiMouseCursor_ResizeNESW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENESW);
548 bd->
MouseCursors[ImGuiMouseCursor_ResizeNWSE] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENWSE);
549 bd->
MouseCursors[ImGuiMouseCursor_Hand] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_HAND);
550 bd->
MouseCursors[ImGuiMouseCursor_NotAllowed] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_NO);
554 ImGuiViewport* main_viewport = ImGui::GetMainViewport();
555 main_viewport->PlatformHandle = (
void*)(intptr_t)bd->
WindowID;
556 main_viewport->PlatformHandleRaw =
nullptr;
558 SDL_VERSION(&info.version);
559 if (SDL_GetWindowWMInfo(window, &info))
561#if defined(SDL_VIDEO_DRIVER_WINDOWS)
562 main_viewport->PlatformHandleRaw = (
void*)info.info.win.window;
563#elif defined(__APPLE__) && defined(SDL_VIDEO_DRIVER_COCOA)
564 main_viewport->PlatformHandleRaw = (
void*)info.info.cocoa.window;
573#ifdef SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH
574 SDL_SetHint(SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH,
"1");
580#ifdef SDL_HINT_IME_SHOW_UI
581 SDL_SetHint(SDL_HINT_IME_SHOW_UI,
"1");
585#ifdef SDL_HINT_MOUSE_AUTO_CAPTURE
586 SDL_SetHint(SDL_HINT_MOUSE_AUTO_CAPTURE,
"0");
591 if ((io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable) && (io.BackendFlags & ImGuiBackendFlags_PlatformHasViewports))
592 ImGui_ImplSDL2_InitPlatformInterface(window, sdl_gl_context);
599 return ImGui_ImplSDL2_Init(window,
nullptr, sdl_gl_context);
605 IM_ASSERT(0 &&
"Unsupported");
607 if (!ImGui_ImplSDL2_Init(window,
nullptr,
nullptr))
617 IM_ASSERT(0 &&
"Unsupported");
619 return ImGui_ImplSDL2_Init(window,
nullptr,
nullptr);
624 return ImGui_ImplSDL2_Init(window,
nullptr,
nullptr);
629 return ImGui_ImplSDL2_Init(window, renderer,
nullptr);
634 return ImGui_ImplSDL2_Init(window,
nullptr,
nullptr);
637static void ImGui_ImplSDL2_CloseGamepads();
642 IM_ASSERT(bd !=
nullptr &&
"No platform backend to shutdown, or already shutdown?");
643 ImGuiIO& io = ImGui::GetIO();
645 ImGui_ImplSDL2_ShutdownPlatformInterface();
649 for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++)
651 ImGui_ImplSDL2_CloseGamepads();
653 io.BackendPlatformName =
nullptr;
654 io.BackendPlatformUserData =
nullptr;
655 io.BackendFlags &= ~(ImGuiBackendFlags_HasMouseCursors | ImGuiBackendFlags_HasSetMousePos | ImGuiBackendFlags_HasGamepad | ImGuiBackendFlags_PlatformHasViewports | ImGuiBackendFlags_HasMouseHoveredViewport);
660static void ImGui_ImplSDL2_UpdateMouseData()
663 ImGuiIO& io = ImGui::GetIO();
666#if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
669 SDL_Window* focused_window = SDL_GetKeyboardFocus();
670 const bool is_app_focused = (focused_window && (bd->
Window == focused_window || ImGui_ImplSDL2_GetViewportForWindowID(SDL_GetWindowID(focused_window)) != NULL));
672 SDL_Window* focused_window = bd->
Window;
673 const bool is_app_focused = (SDL_GetWindowFlags(bd->
Window) & SDL_WINDOW_INPUT_FOCUS) != 0;
679 if (io.WantSetMousePos)
681#if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
682 if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
683 SDL_WarpMouseGlobal((
int)io.MousePos.x, (
int)io.MousePos.y);
686 SDL_WarpMouseInWindow(bd->
Window, (
int)io.MousePos.x, (
int)io.MousePos.y);
694 int mouse_x, mouse_y, window_x, window_y;
695 SDL_GetGlobalMouseState(&mouse_x, &mouse_y);
696 if (!(io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable))
698 SDL_GetWindowPosition(focused_window, &window_x, &window_y);
702 io.AddMousePosEvent((
float)mouse_x, (
float)mouse_y);
713 if (io.BackendFlags & ImGuiBackendFlags_HasMouseHoveredViewport)
715 ImGuiID mouse_viewport_id = 0;
716 if (ImGuiViewport* mouse_viewport = ImGui_ImplSDL2_GetViewportForWindowID(bd->
MouseWindowID))
717 mouse_viewport_id = mouse_viewport->ID;
718 io.AddMouseViewportEvent(mouse_viewport_id);
722static void ImGui_ImplSDL2_UpdateMouseCursor()
724 ImGuiIO& io = ImGui::GetIO();
725 if (io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange)
729 ImGuiMouseCursor imgui_cursor = ImGui::GetMouseCursor();
730 if (io.MouseDrawCursor || imgui_cursor == ImGuiMouseCursor_None)
733 SDL_ShowCursor(SDL_FALSE);
741 SDL_SetCursor(expected_cursor);
744 SDL_ShowCursor(SDL_TRUE);
748static void ImGui_ImplSDL2_CloseGamepads()
751 if (bd->
GamepadMode != ImGui_ImplSDL2_GamepadMode_Manual)
752 for (SDL_GameController* gamepad : bd->Gamepads)
753 SDL_GameControllerClose(gamepad);
760 ImGui_ImplSDL2_CloseGamepads();
761 if (mode == ImGui_ImplSDL2_GamepadMode_Manual)
763 IM_ASSERT(manual_gamepads_array !=
nullptr && manual_gamepads_count > 0);
764 for (
int n = 0; n < manual_gamepads_count; n++)
765 bd->
Gamepads.push_back(manual_gamepads_array[n]);
769 IM_ASSERT(manual_gamepads_array ==
nullptr && manual_gamepads_count <= 0);
775static void ImGui_ImplSDL2_UpdateGamepadButton(
ImGui_ImplSDL2_Data* bd, ImGuiIO& io, ImGuiKey key, SDL_GameControllerButton button_no)
777 bool merged_value =
false;
778 for (SDL_GameController* gamepad : bd->Gamepads)
779 merged_value |= SDL_GameControllerGetButton(gamepad, button_no) != 0;
780 io.AddKeyEvent(key, merged_value);
783static inline float Saturate(
float v) {
return v < 0.0f ? 0.0f : v > 1.0f ? 1.0f : v; }
784static void ImGui_ImplSDL2_UpdateGamepadAnalog(
ImGui_ImplSDL2_Data* bd, ImGuiIO& io, ImGuiKey key, SDL_GameControllerAxis axis_no,
float v0,
float v1)
786 float merged_value = 0.0f;
787 for (SDL_GameController* gamepad : bd->Gamepads)
789 float vn = Saturate((
float)(SDL_GameControllerGetAxis(gamepad, axis_no) - v0) / (
float)(v1 - v0));
790 if (merged_value < vn)
793 io.AddKeyAnalogEvent(key, merged_value > 0.1f, merged_value);
796static void ImGui_ImplSDL2_UpdateGamepads()
799 ImGuiIO& io = ImGui::GetIO();
804 ImGui_ImplSDL2_CloseGamepads();
805 int joystick_count = SDL_NumJoysticks();
806 for (
int n = 0; n < joystick_count; n++)
807 if (SDL_IsGameController(n))
808 if (SDL_GameController* gamepad = SDL_GameControllerOpen(n))
811 if (bd->
GamepadMode == ImGui_ImplSDL2_GamepadMode_AutoFirst)
818 if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0)
820 io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
823 io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
826 const int thumb_dead_zone = 8000;
827 ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadStart, SDL_CONTROLLER_BUTTON_START);
828 ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadBack, SDL_CONTROLLER_BUTTON_BACK);
829 ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceLeft, SDL_CONTROLLER_BUTTON_X);
830 ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceRight, SDL_CONTROLLER_BUTTON_B);
831 ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceUp, SDL_CONTROLLER_BUTTON_Y);
832 ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadFaceDown, SDL_CONTROLLER_BUTTON_A);
833 ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadLeft, SDL_CONTROLLER_BUTTON_DPAD_LEFT);
834 ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadRight, SDL_CONTROLLER_BUTTON_DPAD_RIGHT);
835 ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadUp, SDL_CONTROLLER_BUTTON_DPAD_UP);
836 ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadDpadDown, SDL_CONTROLLER_BUTTON_DPAD_DOWN);
837 ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadL1, SDL_CONTROLLER_BUTTON_LEFTSHOULDER);
838 ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadR1, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER);
839 ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadL2, SDL_CONTROLLER_AXIS_TRIGGERLEFT, 0.0f, 32767);
840 ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadR2, SDL_CONTROLLER_AXIS_TRIGGERRIGHT, 0.0f, 32767);
841 ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadL3, SDL_CONTROLLER_BUTTON_LEFTSTICK);
842 ImGui_ImplSDL2_UpdateGamepadButton(bd, io, ImGuiKey_GamepadR3, SDL_CONTROLLER_BUTTON_RIGHTSTICK);
843 ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickLeft, SDL_CONTROLLER_AXIS_LEFTX, -thumb_dead_zone, -32768);
844 ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickRight, SDL_CONTROLLER_AXIS_LEFTX, +thumb_dead_zone, +32767);
845 ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickUp, SDL_CONTROLLER_AXIS_LEFTY, -thumb_dead_zone, -32768);
846 ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadLStickDown, SDL_CONTROLLER_AXIS_LEFTY, +thumb_dead_zone, +32767);
847 ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickLeft, SDL_CONTROLLER_AXIS_RIGHTX, -thumb_dead_zone, -32768);
848 ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickRight, SDL_CONTROLLER_AXIS_RIGHTX, +thumb_dead_zone, +32767);
849 ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickUp, SDL_CONTROLLER_AXIS_RIGHTY, -thumb_dead_zone, -32768);
850 ImGui_ImplSDL2_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickDown, SDL_CONTROLLER_AXIS_RIGHTY, +thumb_dead_zone, +32767);
854static void ImGui_ImplSDL2_UpdateMonitors()
857 ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
858 platform_io.Monitors.resize(0);
860 int display_count = SDL_GetNumVideoDisplays();
861 for (
int n = 0; n < display_count; n++)
864 ImGuiPlatformMonitor monitor;
866 SDL_GetDisplayBounds(n, &r);
867 monitor.MainPos = monitor.WorkPos = ImVec2((
float)r.x, (
float)r.y);
868 monitor.MainSize = monitor.WorkSize = ImVec2((
float)r.w, (
float)r.h);
869#if SDL_HAS_USABLE_DISPLAY_BOUNDS
870 SDL_GetDisplayUsableBounds(n, &r);
871 monitor.WorkPos = ImVec2((
float)r.x, (
float)r.y);
872 monitor.WorkSize = ImVec2((
float)r.w, (
float)r.h);
874#if SDL_HAS_PER_MONITOR_DPI
878 if (!SDL_GetDisplayDPI(n, &dpi,
nullptr,
nullptr))
882 monitor.DpiScale = dpi / 96.0f;
885 monitor.PlatformHandle = (
void*)(intptr_t)n;
886 platform_io.Monitors.push_back(monitor);
893 IM_ASSERT(bd !=
nullptr &&
"Context or backend not initialized! Did you call ImGui_ImplSDL2_Init()?");
894 ImGuiIO& io = ImGui::GetIO();
898 int display_w, display_h;
899 SDL_GetWindowSize(bd->
Window, &w, &h);
900 if (SDL_GetWindowFlags(bd->
Window) & SDL_WINDOW_MINIMIZED)
903 SDL_GetRendererOutputSize(bd->
Renderer, &display_w, &display_h);
905 else if (SDL_GetWindowFlags(bd->
Window) & SDL_WINDOW_VULKAN)
906 SDL_Vulkan_GetDrawableSize(bd->
Window, &display_w, &display_h);
909 SDL_GL_GetDrawableSize(bd->
Window, &display_w, &display_h);
910 io.DisplaySize = ImVec2((
float)w, (
float)h);
912 io.DisplayFramebufferScale = ImVec2((
float)display_w / w, (
float)display_h / h);
916 ImGui_ImplSDL2_UpdateMonitors();
920 static Uint64 frequency = SDL_GetPerformanceFrequency();
921 Uint64 current_time = SDL_GetPerformanceCounter();
922 if (current_time <= bd->Time)
923 current_time = bd->
Time + 1;
924 io.DeltaTime = bd->
Time > 0 ? (float)((
double)(current_time - bd->
Time) / frequency) : (float)(1.0f / 60.0f);
925 bd->
Time = current_time;
931 io.AddMousePosEvent(-FLT_MAX, -FLT_MAX);
937 io.BackendFlags |= ImGuiBackendFlags_HasMouseHoveredViewport;
939 io.BackendFlags &= ~ImGuiBackendFlags_HasMouseHoveredViewport;
941 ImGui_ImplSDL2_UpdateMouseData();
942 ImGui_ImplSDL2_UpdateMouseCursor();
945 ImGui_ImplSDL2_UpdateGamepads();
966static void ImGui_ImplSDL2_CreateWindow(ImGuiViewport* viewport)
970 viewport->PlatformUserData = vd;
972 ImGuiViewport* main_viewport = ImGui::GetMainViewport();
976 bool use_opengl = (main_viewport_data->GLContext !=
nullptr);
977 SDL_GLContext backup_context =
nullptr;
980 backup_context = SDL_GL_GetCurrentContext();
981 SDL_GL_SetAttribute(SDL_GL_SHARE_WITH_CURRENT_CONTEXT, 1);
982 SDL_GL_MakeCurrent(main_viewport_data->Window, main_viewport_data->GLContext);
985 Uint32 sdl_flags = 0;
986 sdl_flags |= use_opengl ? SDL_WINDOW_OPENGL : (bd->
UseVulkan ? SDL_WINDOW_VULKAN : 0);
987 sdl_flags |= SDL_GetWindowFlags(bd->
Window) & SDL_WINDOW_ALLOW_HIGHDPI;
988 sdl_flags |= SDL_WINDOW_HIDDEN;
989 sdl_flags |= (viewport->Flags & ImGuiViewportFlags_NoDecoration) ? SDL_WINDOW_BORDERLESS : 0;
990 sdl_flags |= (viewport->Flags & ImGuiViewportFlags_NoDecoration) ? 0 : SDL_WINDOW_RESIZABLE;
993 sdl_flags |= (viewport->Flags & ImGuiViewportFlags_NoTaskBarIcon) ? SDL_WINDOW_SKIP_TASKBAR : 0;
995#if SDL_HAS_ALWAYS_ON_TOP
996 sdl_flags |= (viewport->Flags & ImGuiViewportFlags_TopMost) ? SDL_WINDOW_ALWAYS_ON_TOP : 0;
998 vd->Window = SDL_CreateWindow(
"No Title Yet", (
int)viewport->Pos.x, (
int)viewport->Pos.y, (
int)viewport->Size.x, (
int)viewport->Size.y, sdl_flags);
999 vd->WindowOwned =
true;
1002 vd->GLContext = SDL_GL_CreateContext(vd->Window);
1003 SDL_GL_SetSwapInterval(0);
1005 if (use_opengl && backup_context)
1006 SDL_GL_MakeCurrent(vd->Window, backup_context);
1008 viewport->PlatformHandle = (
void*)(intptr_t)SDL_GetWindowID(vd->Window);
1009 viewport->PlatformHandleRaw =
nullptr;
1011 SDL_VERSION(&info.version);
1012 if (SDL_GetWindowWMInfo(vd->Window, &info))
1014#if defined(SDL_VIDEO_DRIVER_WINDOWS)
1015 viewport->PlatformHandleRaw = info.info.win.window;
1016#elif defined(__APPLE__) && defined(SDL_VIDEO_DRIVER_COCOA)
1017 viewport->PlatformHandleRaw = (
void*)info.info.cocoa.window;
1022static void ImGui_ImplSDL2_DestroyWindow(ImGuiViewport* viewport)
1026 if (vd->GLContext && vd->WindowOwned)
1027 SDL_GL_DeleteContext(vd->GLContext);
1028 if (vd->Window && vd->WindowOwned)
1029 SDL_DestroyWindow(vd->Window);
1030 vd->GLContext =
nullptr;
1031 vd->Window =
nullptr;
1034 viewport->PlatformUserData = viewport->PlatformHandle =
nullptr;
1037static void ImGui_ImplSDL2_ShowWindow(ImGuiViewport* viewport)
1040#if defined(_WIN32) && !(defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP || WINAPI_FAMILY == WINAPI_FAMILY_GAMES))
1041 HWND hwnd = (HWND)viewport->PlatformHandleRaw;
1045 if (viewport->Flags & ImGuiViewportFlags_NoTaskBarIcon)
1047 LONG ex_style = ::GetWindowLong(hwnd, GWL_EXSTYLE);
1048 ex_style &= ~WS_EX_APPWINDOW;
1049 ex_style |= WS_EX_TOOLWINDOW;
1050 ::SetWindowLong(hwnd, GWL_EXSTYLE, ex_style);
1054#if SDL_HAS_SHOW_WINDOW_ACTIVATION_HINT
1055 SDL_SetHint(SDL_HINT_WINDOW_NO_ACTIVATION_WHEN_SHOWN, (viewport->Flags & ImGuiViewportFlags_NoFocusOnAppearing) ?
"1" :
"0");
1056#elif defined(_WIN32)
1058 if (viewport->Flags & ImGuiViewportFlags_NoFocusOnAppearing)
1060 ::ShowWindow(hwnd, SW_SHOWNA);
1064 SDL_ShowWindow(vd->Window);
1067static ImVec2 ImGui_ImplSDL2_GetWindowPos(ImGuiViewport* viewport)
1071 SDL_GetWindowPosition(vd->Window, &x, &y);
1072 return ImVec2((
float)x, (
float)y);
1075static void ImGui_ImplSDL2_SetWindowPos(ImGuiViewport* viewport, ImVec2 pos)
1078 SDL_SetWindowPosition(vd->Window, (
int)pos.x, (
int)pos.y);
1081static ImVec2 ImGui_ImplSDL2_GetWindowSize(ImGuiViewport* viewport)
1085 SDL_GetWindowSize(vd->Window, &w, &h);
1086 return ImVec2((
float)w, (
float)h);
1089static void ImGui_ImplSDL2_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
1092 SDL_SetWindowSize(vd->Window, (
int)
size.x, (
int)
size.y);
1095static void ImGui_ImplSDL2_SetWindowTitle(ImGuiViewport* viewport,
const char* title)
1098 SDL_SetWindowTitle(vd->Window, title);
1101#if SDL_HAS_WINDOW_ALPHA
1102static void ImGui_ImplSDL2_SetWindowAlpha(ImGuiViewport* viewport,
float alpha)
1105 SDL_SetWindowOpacity(vd->Window, alpha);
1109static void ImGui_ImplSDL2_SetWindowFocus(ImGuiViewport* viewport)
1112 SDL_RaiseWindow(vd->Window);
1115static bool ImGui_ImplSDL2_GetWindowFocus(ImGuiViewport* viewport)
1118 return (SDL_GetWindowFlags(vd->Window) & SDL_WINDOW_INPUT_FOCUS) != 0;
1121static bool ImGui_ImplSDL2_GetWindowMinimized(ImGuiViewport* viewport)
1124 return (SDL_GetWindowFlags(vd->Window) & SDL_WINDOW_MINIMIZED) != 0;
1127static void ImGui_ImplSDL2_RenderWindow(ImGuiViewport* viewport,
void*)
1131 SDL_GL_MakeCurrent(vd->Window, vd->GLContext);
1134static void ImGui_ImplSDL2_SwapBuffers(ImGuiViewport* viewport,
void*)
1139 SDL_GL_MakeCurrent(vd->Window, vd->GLContext);
1140 SDL_GL_SwapWindow(vd->Window);
1147#include <SDL_vulkan.h>
1148static int ImGui_ImplSDL2_CreateVkSurface(ImGuiViewport* viewport, ImU64 vk_instance,
const void* vk_allocator, ImU64* out_vk_surface)
1152 SDL_bool ret = SDL_Vulkan_CreateSurface(vd->Window, (VkInstance)vk_instance, (VkSurfaceKHR*)out_vk_surface);
1157static void ImGui_ImplSDL2_InitPlatformInterface(SDL_Window* window,
void* sdl_gl_context)
1160 ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
1161 platform_io.Platform_CreateWindow = ImGui_ImplSDL2_CreateWindow;
1162 platform_io.Platform_DestroyWindow = ImGui_ImplSDL2_DestroyWindow;
1163 platform_io.Platform_ShowWindow = ImGui_ImplSDL2_ShowWindow;
1164 platform_io.Platform_SetWindowPos = ImGui_ImplSDL2_SetWindowPos;
1165 platform_io.Platform_GetWindowPos = ImGui_ImplSDL2_GetWindowPos;
1166 platform_io.Platform_SetWindowSize = ImGui_ImplSDL2_SetWindowSize;
1167 platform_io.Platform_GetWindowSize = ImGui_ImplSDL2_GetWindowSize;
1168 platform_io.Platform_SetWindowFocus = ImGui_ImplSDL2_SetWindowFocus;
1169 platform_io.Platform_GetWindowFocus = ImGui_ImplSDL2_GetWindowFocus;
1170 platform_io.Platform_GetWindowMinimized = ImGui_ImplSDL2_GetWindowMinimized;
1171 platform_io.Platform_SetWindowTitle = ImGui_ImplSDL2_SetWindowTitle;
1172 platform_io.Platform_RenderWindow = ImGui_ImplSDL2_RenderWindow;
1173 platform_io.Platform_SwapBuffers = ImGui_ImplSDL2_SwapBuffers;
1174#if SDL_HAS_WINDOW_ALPHA
1175 platform_io.Platform_SetWindowAlpha = ImGui_ImplSDL2_SetWindowAlpha;
1178 platform_io.Platform_CreateVkSurface = ImGui_ImplSDL2_CreateVkSurface;
1183 ImGuiViewport* main_viewport = ImGui::GetMainViewport();
1186 vd->
WindowID = SDL_GetWindowID(window);
1189 main_viewport->PlatformUserData = vd;
1190 main_viewport->PlatformHandle = (
void*)(intptr_t)vd->
WindowID;
1193static void ImGui_ImplSDL2_ShutdownPlatformInterface()
1195 ImGui::DestroyPlatformWindows();
1200#if defined(__clang__)
1201#pragma clang diagnostic pop
void ImGui_ImplSDL2_SetGamepadMode(ImGui_ImplSDL2_GamepadMode mode, struct _SDL_GameController **manual_gamepads_array, int manual_gamepads_count)
bool ImGui_ImplSDL2_InitForVulkan(SDL_Window *window)
bool ImGui_ImplSDL2_InitForSDLRenderer(SDL_Window *window, SDL_Renderer *renderer)
bool ImGui_ImplSDL2_InitForOpenGL(SDL_Window *window, void *sdl_gl_context)
bool ImGui_ImplSDL2_InitForOther(SDL_Window *window)
bool ImGui_ImplSDL2_InitForMetal(SDL_Window *window)
ImGuiKey ImGui_ImplSDL2_KeyEventToImGuiKey(SDL_Keycode keycode, SDL_Scancode scancode)
void ImGui_ImplSDL2_NewFrame()
bool ImGui_ImplSDL2_InitForD3D(SDL_Window *window)
bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event *event)
void ImGui_ImplSDL2_Shutdown()
size_t size(std::string_view utf8)
ImGui_ImplSDL2_GamepadMode GamepadMode
SDL_Cursor * MouseLastCursor
SDL_Cursor * MouseCursors[ImGuiMouseCursor_COUNT]
bool MouseCanUseGlobalState
ImVector< SDL_GameController * > Gamepads
bool MouseCanReportHoveredViewport
bool WantUpdateGamepadsList
ImGui_ImplSDL2_ViewportData()
~ImGui_ImplSDL2_ViewportData()