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change to imgui docker version

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rename to work-calendar
This commit is contained in:
Ammerhai
2025-08-11 19:34:03 +02:00
parent 515fdbc83c
commit 86f2520c3e
78 changed files with 12220 additions and 506 deletions
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libs/imgui/backends/imgui_impl_sdl3.cpp
+443 -27
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@@ -8,7 +8,10 @@
// [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy SDL_SCANCODE_* values are obsolete since 1.87 and not supported since 1.91.5]
// [X] Platform: Gamepad support.
// [X] Platform: Mouse cursor shape and visibility (ImGuiBackendFlags_HasMouseCursors). Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
// [X] Platform: IME support.
// [x] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable' -> the OS animation effect when window gets created/destroyed is problematic. SDL2 backend doesn't have issue.
// Missing features or Issues:
// [ ] Platform: Multi-viewport: Minimized windows seems to break mouse wheel events (at least under Windows).
// [x] Platform: IME support. Position somehow broken in SDL3 + app needs to call 'SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");' before SDL_CreateWindow()!.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
@@ -20,18 +23,25 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2025-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2025-06-27: IME: avoid calling SDL_StartTextInput() again if already active. (#8727)
// 2025-05-15: [Docking] Add Platform_GetWindowFramebufferScale() handler, to allow varying Retina display density on multiple monitors.
// 2025-05-06: [Docking] macOS: fixed secondary viewports not appearing on other monitors before of parenting.
// 2025-04-09: [Docking] Revert update monitors and work areas information every frame. Only do it on Windows. (#8415, #8558)
// 2025-04-22: IME: honor ImGuiPlatformImeData->WantTextInput as an alternative way to call SDL_StartTextInput(), without IME being necessarily visible.
// 2025-04-09: Don't attempt to call SDL_CaptureMouse() on drivers where we don't call SDL_GetGlobalMouseState(). (#8561)
// 2025-03-30: Update for SDL3 api changes: Revert SDL_GetClipboardText() memory ownership change. (#8530, #7801)
// 2025-03-21: Fill gamepad inputs and set ImGuiBackendFlags_HasGamepad regardless of ImGuiConfigFlags_NavEnableGamepad being set.
// 2025-03-10: When dealing with OEM keys, use scancodes instead of translated keycodes to choose ImGuiKey values. (#7136, #7201, #7206, #7306, #7670, #7672, #8468)
// 2025-02-26: Only start SDL_CaptureMouse() when mouse is being dragged, to mitigate issues with e.g.Linux debuggers not claiming capture back. (#6410, #3650)
// 2025-02-25: [Docking] Revert to use SDL_GetDisplayBounds() for WorkPos/WorkRect if SDL_GetDisplayUsableBounds() failed.
// 2025-02-24: Avoid calling SDL_GetGlobalMouseState() when mouse is in relative mode.
// 2025-02-21: [Docking] Update monitors and work areas information every frame, as the later may change regardless of monitor changes. (#8415)
// 2025-02-18: Added ImGuiMouseCursor_Wait and ImGuiMouseCursor_Progress mouse cursor support.
// 2025-02-10: Using SDL_OpenURL() in platform_io.Platform_OpenInShellFn handler.
// 2025-01-20: Made ImGui_ImplSDL3_SetGamepadMode(ImGui_ImplSDL3_GamepadMode_Manual) accept an empty array.
// 2024-10-24: Emscripten: SDL_EVENT_MOUSE_WHEEL event doesn't require dividing by 100.0f on Emscripten.
// 2024-09-11: (Docking) Added support for viewport->ParentViewportId field to support parenting at OS level. (#7973)
// 2024-09-03: Update for SDL3 api changes: SDL_GetGamepads() memory ownership revert. (#7918, #7898, #7807)
// 2024-08-22: moved some OS/backend related function pointers from ImGuiIO to ImGuiPlatformIO:
// - io.GetClipboardTextFn -> platform_io.Platform_GetClipboardTextFn
@@ -105,6 +115,8 @@ struct ImGui_ImplSDL3_Data
Uint64 Time;
char* ClipboardTextData;
char BackendPlatformName[48];
bool UseVulkan;
bool WantUpdateMonitors;
// IME handling
SDL_Window* ImeWindow;
@@ -117,11 +129,12 @@ struct ImGui_ImplSDL3_Data
int MousePendingLeaveFrame;
bool MouseCanUseGlobalState;
bool MouseCanUseCapture;
bool MouseCanReportHoveredViewport; // This is hard to use/unreliable on SDL so we'll set ImGuiBackendFlags_HasMouseHoveredViewport dynamically based on state.
// Gamepad handling
ImVector<SDL_Gamepad*> Gamepads;
ImVector<SDL_Gamepad*> Gamepads;
ImGui_ImplSDL3_GamepadMode GamepadMode;
bool WantUpdateGamepadsList;
bool WantUpdateGamepadsList;
ImGui_ImplSDL3_Data() { memset((void*)this, 0, sizeof(*this)); }
};
@@ -135,6 +148,11 @@ static ImGui_ImplSDL3_Data* ImGui_ImplSDL3_GetBackendData()
return ImGui::GetCurrentContext() ? (ImGui_ImplSDL3_Data*)ImGui::GetIO().BackendPlatformUserData : nullptr;
}
// Forward Declarations
static void ImGui_ImplSDL3_UpdateMonitors();
static void ImGui_ImplSDL3_InitMultiViewportSupport(SDL_Window* window, void* sdl_gl_context);
static void ImGui_ImplSDL3_ShutdownMultiViewportSupport();
// Functions
static const char* ImGui_ImplSDL3_GetClipboardText(ImGuiContext*)
{
@@ -163,8 +181,8 @@ static void ImGui_ImplSDL3_PlatformSetImeData(ImGuiContext*, ImGuiViewport* view
if (data->WantVisible)
{
SDL_Rect r;
r.x = (int)data->InputPos.x;
r.y = (int)data->InputPos.y;
r.x = (int)(data->InputPos.x - viewport->Pos.x);
r.y = (int)(data->InputPos.y - viewport->Pos.y + data->InputLineHeight);
r.w = 1;
r.h = (int)data->InputLineHeight;
SDL_SetTextInputArea(window, &r, 0);
@@ -336,18 +354,15 @@ static void ImGui_ImplSDL3_UpdateKeyModifiers(SDL_Keymod sdl_key_mods)
io.AddKeyEvent(ImGuiMod_Super, (sdl_key_mods & SDL_KMOD_GUI) != 0);
}
static ImGuiViewport* ImGui_ImplSDL3_GetViewportForWindowID(SDL_WindowID window_id)
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
return (window_id == bd->WindowID) ? ImGui::GetMainViewport() : nullptr;
return ImGui::FindViewportByPlatformHandle((void*)(intptr_t)window_id);
}
// You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
// Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
// If you have multiple SDL events and some of them are not meant to be used by dear imgui, you may need to filter events based on their windowID field.
bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
@@ -361,6 +376,13 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
if (ImGui_ImplSDL3_GetViewportForWindowID(event->motion.windowID) == nullptr)
return false;
ImVec2 mouse_pos((float)event->motion.x, (float)event->motion.y);
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
{
int window_x, window_y;
SDL_GetWindowPosition(SDL_GetWindowFromID(event->motion.windowID), &window_x, &window_y);
mouse_pos.x += window_x;
mouse_pos.y += window_y;
}
io.AddMouseSourceEvent(event->motion.which == SDL_TOUCH_MOUSEID ? ImGuiMouseSource_TouchScreen : ImGuiMouseSource_Mouse);
io.AddMousePosEvent(mouse_pos.x, mouse_pos.y);
return true;
@@ -404,16 +426,26 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
case SDL_EVENT_KEY_DOWN:
case SDL_EVENT_KEY_UP:
{
if (ImGui_ImplSDL3_GetViewportForWindowID(event->key.windowID) == nullptr)
ImGuiViewport* viewport = ImGui_ImplSDL3_GetViewportForWindowID(event->key.windowID);
if (viewport == nullptr)
return false;
//IMGUI_DEBUG_LOG("SDL_EVENT_KEY_%s : key=0x%08X ('%s'), scancode=%d ('%s'), mod=%X, windowID=%d, viewport=%08X\n",
// (event->type == SDL_EVENT_KEY_DOWN) ? "DOWN" : "UP ", event->key.key, SDL_GetKeyName(event->key.key), event->key.scancode, SDL_GetScancodeName(event->key.scancode), event->key.mod, event->key.windowID, viewport ? viewport->ID : 0);
ImGui_ImplSDL3_UpdateKeyModifiers((SDL_Keymod)event->key.mod);
//IMGUI_DEBUG_LOG("SDL_EVENT_KEY_%s : key=%d ('%s'), scancode=%d ('%s'), mod=%X\n",
// (event->type == SDL_EVENT_KEY_DOWN) ? "DOWN" : "UP ", event->key.key, SDL_GetKeyName(event->key.key), event->key.scancode, SDL_GetScancodeName(event->key.scancode), event->key.mod);
ImGuiKey key = ImGui_ImplSDL3_KeyEventToImGuiKey(event->key.key, event->key.scancode);
io.AddKeyEvent(key, (event->type == SDL_EVENT_KEY_DOWN));
io.SetKeyEventNativeData(key, (int)event->key.key, (int)event->key.scancode, (int)event->key.scancode); // To support legacy indexing (<1.87 user code). Legacy backend uses SDLK_*** as indices to IsKeyXXX() functions.
return true;
}
case SDL_EVENT_DISPLAY_ORIENTATION:
case SDL_EVENT_DISPLAY_ADDED:
case SDL_EVENT_DISPLAY_REMOVED:
case SDL_EVENT_DISPLAY_MOVED:
case SDL_EVENT_DISPLAY_CONTENT_SCALE_CHANGED:
{
bd->WantUpdateMonitors = true;
return true;
}
case SDL_EVENT_WINDOW_MOUSE_ENTER:
{
if (ImGui_ImplSDL3_GetViewportForWindowID(event->window.windowID) == nullptr)
@@ -436,11 +468,28 @@ bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
case SDL_EVENT_WINDOW_FOCUS_GAINED:
case SDL_EVENT_WINDOW_FOCUS_LOST:
{
if (ImGui_ImplSDL3_GetViewportForWindowID(event->window.windowID) == nullptr)
ImGuiViewport* viewport = ImGui_ImplSDL3_GetViewportForWindowID(event->window.windowID);
if (viewport == nullptr)
return false;
//IMGUI_DEBUG_LOG("%s: windowId %d, viewport: %08X\n", (event->type == SDL_EVENT_WINDOW_FOCUS_GAINED) ? "SDL_EVENT_WINDOW_FOCUS_GAINED" : "SDL_WINDOWEVENT_FOCUS_LOST", event->window.windowID, viewport ? viewport->ID : 0);
io.AddFocusEvent(event->type == SDL_EVENT_WINDOW_FOCUS_GAINED);
return true;
}
case SDL_EVENT_WINDOW_CLOSE_REQUESTED:
case SDL_EVENT_WINDOW_MOVED:
case SDL_EVENT_WINDOW_RESIZED:
{
ImGuiViewport* viewport = ImGui_ImplSDL3_GetViewportForWindowID(event->window.windowID);
if (viewport == NULL)
return false;
if (event->type == SDL_EVENT_WINDOW_CLOSE_REQUESTED)
viewport->PlatformRequestClose = true;
if (event->type == SDL_EVENT_WINDOW_MOVED)
viewport->PlatformRequestMove = true;
if (event->type == SDL_EVENT_WINDOW_RESIZED)
viewport->PlatformRequestResize = true;
return true;
}
case SDL_EVENT_GAMEPAD_ADDED:
case SDL_EVENT_GAMEPAD_REMOVED:
{
@@ -470,6 +519,7 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
IMGUI_CHECKVERSION();
IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!");
IM_UNUSED(sdl_gl_context); // Unused in this branch
//SDL_SetHint(SDL_HINT_EVENT_LOGGING, "2");
const int ver_linked = SDL_GetVersion();
@@ -481,11 +531,20 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
io.BackendPlatformName = bd->BackendPlatformName;
io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors; // We can honor GetMouseCursor() values (optional)
io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos; // We can honor io.WantSetMousePos requests (optional, rarely used)
// (ImGuiBackendFlags_PlatformHasViewports may be set just below)
bd->Window = window;
bd->WindowID = SDL_GetWindowID(window);
bd->Renderer = renderer;
// SDL on Linux/OSX doesn't report events for unfocused windows (see https://github.com/ocornut/imgui/issues/4960)
// We will use 'MouseCanReportHoveredViewport' to set 'ImGuiBackendFlags_HasMouseHoveredViewport' dynamically each frame.
#ifndef __APPLE__
bd->MouseCanReportHoveredViewport = bd->MouseCanUseGlobalState;
#else
bd->MouseCanReportHoveredViewport = false;
#endif
// Check and store if we are on a SDL backend that supports SDL_GetGlobalMouseState() and SDL_CaptureMouse()
// ("wayland" and "rpi" don't support it, but we chose to use a white-list instead of a black-list)
bd->MouseCanUseGlobalState = false;
@@ -497,6 +556,8 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
if (strncmp(sdl_backend, item, strlen(item)) == 0)
bd->MouseCanUseGlobalState = bd->MouseCanUseCapture = true;
#endif
if (bd->MouseCanUseGlobalState)
io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports; // We can create multi-viewports on the Platform side (optional)
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Platform_SetClipboardTextFn = ImGui_ImplSDL3_SetClipboardText;
@@ -504,6 +565,9 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
platform_io.Platform_SetImeDataFn = ImGui_ImplSDL3_PlatformSetImeData;
platform_io.Platform_OpenInShellFn = [](ImGuiContext*, const char* url) { return SDL_OpenURL(url) == 0; };
// Update monitor a first time during init
ImGui_ImplSDL3_UpdateMonitors();
// Gamepad handling
bd->GamepadMode = ImGui_ImplSDL3_GamepadMode_AutoFirst;
bd->WantUpdateGamepadsList = true;
@@ -530,28 +594,36 @@ static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void
// Without this, when clicking to gain focus, our widgets wouldn't activate even though they showed as hovered.
// (This is unfortunately a global SDL setting, so enabling it might have a side-effect on your application.
// It is unlikely to make a difference, but if your app absolutely needs to ignore the initial on-focus click:
// you can ignore SDL_EVENT_MOUSE_BUTTON_DOWN events coming right after a SDL_WINDOWEVENT_FOCUS_GAINED)
#ifdef SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH
// you can ignore SDL_EVENT_MOUSE_BUTTON_DOWN events coming right after a SDL_EVENT_WINDOW_FOCUS_GAINED)
SDL_SetHint(SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH, "1");
#endif
// From 2.0.22: Disable auto-capture, this is preventing drag and drop across multiple windows (see #5710)
#ifdef SDL_HINT_MOUSE_AUTO_CAPTURE
SDL_SetHint(SDL_HINT_MOUSE_AUTO_CAPTURE, "0");
#endif
// SDL 3.x : see https://github.com/libsdl-org/SDL/issues/6659
SDL_SetHint("SDL_BORDERLESS_WINDOWED_STYLE", "0");
// We need SDL_CaptureMouse(), SDL_GetGlobalMouseState() from SDL 2.0.4+ to support multiple viewports.
// We left the call to ImGui_ImplSDL3_InitPlatformInterface() outside of #ifdef to avoid unused-function warnings.
if (io.BackendFlags & ImGuiBackendFlags_PlatformHasViewports)
ImGui_ImplSDL3_InitMultiViewportSupport(window, sdl_gl_context);
return true;
}
// Should technically be a SDL_GLContext but due to typedef it is sane to keep it void* in public interface.
bool ImGui_ImplSDL3_InitForOpenGL(SDL_Window* window, void* sdl_gl_context)
{
IM_UNUSED(sdl_gl_context); // Viewport branch will need this.
return ImGui_ImplSDL3_Init(window, nullptr, sdl_gl_context);
}
bool ImGui_ImplSDL3_InitForVulkan(SDL_Window* window)
{
return ImGui_ImplSDL3_Init(window, nullptr, nullptr);
if (!ImGui_ImplSDL3_Init(window, nullptr, nullptr))
return false;
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
bd->UseVulkan = true;
return true;
}
bool ImGui_ImplSDL3_InitForD3D(SDL_Window* window)
@@ -590,6 +662,8 @@ void ImGui_ImplSDL3_Shutdown()
IM_ASSERT(bd != nullptr && "No platform backend to shutdown, or already shutdown?");
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDL3_ShutdownMultiViewportSupport();
if (bd->ClipboardTextData)
SDL_free(bd->ClipboardTextData);
for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++)
@@ -598,10 +672,11 @@ void ImGui_ImplSDL3_Shutdown()
io.BackendPlatformName = nullptr;
io.BackendPlatformUserData = nullptr;
io.BackendFlags &= ~(ImGuiBackendFlags_HasMouseCursors | ImGuiBackendFlags_HasSetMousePos | ImGuiBackendFlags_HasGamepad);
io.BackendFlags &= ~(ImGuiBackendFlags_HasMouseCursors | ImGuiBackendFlags_HasSetMousePos | ImGuiBackendFlags_HasGamepad | ImGuiBackendFlags_PlatformHasViewports | ImGuiBackendFlags_HasMouseHoveredViewport);
IM_DELETE(bd);
}
// This code is incredibly messy because some of the functions we need for full viewport support are not available in SDL < 2.0.4.
static void ImGui_ImplSDL3_UpdateMouseData()
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
@@ -621,7 +696,7 @@ static void ImGui_ImplSDL3_UpdateMouseData()
}
SDL_Window* focused_window = SDL_GetKeyboardFocus();
const bool is_app_focused = (bd->Window == focused_window);
const bool is_app_focused = (focused_window && (bd->Window == focused_window || ImGui_ImplSDL3_GetViewportForWindowID(SDL_GetWindowID(focused_window)) != NULL));
#else
SDL_Window* focused_window = bd->Window;
const bool is_app_focused = (SDL_GetWindowFlags(bd->Window) & SDL_WINDOW_INPUT_FOCUS) != 0; // SDL 2.0.3 and non-windowed systems: single-viewport only
@@ -630,20 +705,48 @@ static void ImGui_ImplSDL3_UpdateMouseData()
{
// (Optional) Set OS mouse position from Dear ImGui if requested (rarely used, only when io.ConfigNavMoveSetMousePos is enabled by user)
if (io.WantSetMousePos)
SDL_WarpMouseInWindow(bd->Window, io.MousePos.x, io.MousePos.y);
{
#if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
SDL_WarpMouseGlobal(io.MousePos.x, io.MousePos.y);
else
#endif
SDL_WarpMouseInWindow(bd->Window, io.MousePos.x, io.MousePos.y);
}
// (Optional) Fallback to provide mouse position when focused (SDL_EVENT_MOUSE_MOTION already provides this when hovered or captured)
const bool is_relative_mouse_mode = SDL_GetWindowRelativeMouseMode(bd->Window);
if (bd->MouseCanUseGlobalState && bd->MouseButtonsDown == 0 && !is_relative_mouse_mode)
{
// Single-viewport mode: mouse position in client window coordinates (io.MousePos is (0,0) when the mouse is on the upper-left corner of the app window)
float mouse_x_global, mouse_y_global;
// Multi-viewport mode: mouse position in OS absolute coordinates (io.MousePos is (0,0) when the mouse is on the upper-left of the primary monitor)
float mouse_x, mouse_y;
int window_x, window_y;
SDL_GetGlobalMouseState(&mouse_x_global, &mouse_y_global);
SDL_GetWindowPosition(focused_window, &window_x, &window_y);
io.AddMousePosEvent(mouse_x_global - window_x, mouse_y_global - window_y);
SDL_GetGlobalMouseState(&mouse_x, &mouse_y);
if (!(io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable))
{
SDL_GetWindowPosition(focused_window, &window_x, &window_y);
mouse_x -= window_x;
mouse_y -= window_y;
}
io.AddMousePosEvent((float)mouse_x, (float)mouse_y);
}
}
// (Optional) When using multiple viewports: call io.AddMouseViewportEvent() with the viewport the OS mouse cursor is hovering.
// If ImGuiBackendFlags_HasMouseHoveredViewport is not set by the backend, Dear imGui will ignore this field and infer the information using its flawed heuristic.
// - [!] SDL backend does NOT correctly ignore viewports with the _NoInputs flag.
// Some backend are not able to handle that correctly. If a backend report an hovered viewport that has the _NoInputs flag (e.g. when dragging a window
// for docking, the viewport has the _NoInputs flag in order to allow us to find the viewport under), then Dear ImGui is forced to ignore the value reported
// by the backend, and use its flawed heuristic to guess the viewport behind.
// - [X] SDL backend correctly reports this regardless of another viewport behind focused and dragged from (we need this to find a useful drag and drop target).
if (io.BackendFlags & ImGuiBackendFlags_HasMouseHoveredViewport)
{
ImGuiID mouse_viewport_id = 0;
if (ImGuiViewport* mouse_viewport = ImGui_ImplSDL3_GetViewportForWindowID(bd->MouseWindowID))
mouse_viewport_id = mouse_viewport->ID;
io.AddMouseViewportEvent(mouse_viewport_id);
}
}
static void ImGui_ImplSDL3_UpdateMouseCursor()
@@ -775,6 +878,38 @@ static void ImGui_ImplSDL3_UpdateGamepads()
ImGui_ImplSDL3_UpdateGamepadAnalog(bd, io, ImGuiKey_GamepadRStickDown, SDL_GAMEPAD_AXIS_RIGHTY, +thumb_dead_zone, +32767);
}
static void ImGui_ImplSDL3_UpdateMonitors()
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Monitors.resize(0);
bd->WantUpdateMonitors = false;
int display_count;
SDL_DisplayID* displays = SDL_GetDisplays(&display_count);
for (int n = 0; n < display_count; n++)
{
// Warning: the validity of monitor DPI information on Windows depends on the application DPI awareness settings, which generally needs to be set in the manifest or at runtime.
SDL_DisplayID display_id = displays[n];
ImGuiPlatformMonitor monitor;
SDL_Rect r;
SDL_GetDisplayBounds(display_id, &r);
monitor.MainPos = monitor.WorkPos = ImVec2((float)r.x, (float)r.y);
monitor.MainSize = monitor.WorkSize = ImVec2((float)r.w, (float)r.h);
if (SDL_GetDisplayUsableBounds(display_id, &r) && r.w > 0 && r.h > 0)
{
monitor.WorkPos = ImVec2((float)r.x, (float)r.y);
monitor.WorkSize = ImVec2((float)r.w, (float)r.h);
}
monitor.DpiScale = SDL_GetDisplayContentScale(display_id); // See https://wiki.libsdl.org/SDL3/README-highdpi for details.
monitor.PlatformHandle = (void*)(intptr_t)n;
if (monitor.DpiScale <= 0.0f)
continue; // Some accessibility applications are declaring virtual monitors with a DPI of 0, see #7902.
platform_io.Monitors.push_back(monitor);
}
SDL_free(displays);
}
static void ImGui_ImplSDL3_GetWindowSizeAndFramebufferScale(SDL_Window* window, ImVec2* out_size, ImVec2* out_framebuffer_scale)
{
int w, h;
@@ -798,6 +933,13 @@ void ImGui_ImplSDL3_NewFrame()
// Setup main viewport size (every frame to accommodate for window resizing)
ImGui_ImplSDL3_GetWindowSizeAndFramebufferScale(bd->Window, &io.DisplaySize, &io.DisplayFramebufferScale);
// Update monitors
#ifdef WIN32
bd->WantUpdateMonitors = true; // Keep polling under Windows to handle changes of work area when resizing task-bar (#8415)
#endif
if (bd->WantUpdateMonitors)
ImGui_ImplSDL3_UpdateMonitors();
// Setup time step (we could also use SDL_GetTicksNS() available since SDL3)
// (Accept SDL_GetPerformanceCounter() not returning a monotonically increasing value. Happens in VMs and Emscripten, see #6189, #6114, #3644)
static Uint64 frequency = SDL_GetPerformanceFrequency();
@@ -814,6 +956,13 @@ void ImGui_ImplSDL3_NewFrame()
io.AddMousePosEvent(-FLT_MAX, -FLT_MAX);
}
// Our io.AddMouseViewportEvent() calls will only be valid when not capturing.
// Technically speaking testing for 'bd->MouseButtonsDown == 0' would be more rigorous, but testing for payload reduces noise and potential side-effects.
if (bd->MouseCanReportHoveredViewport && ImGui::GetDragDropPayload() == nullptr)
io.BackendFlags |= ImGuiBackendFlags_HasMouseHoveredViewport;
else
io.BackendFlags &= ~ImGuiBackendFlags_HasMouseHoveredViewport;
ImGui_ImplSDL3_UpdateMouseData();
ImGui_ImplSDL3_UpdateMouseCursor();
@@ -821,6 +970,273 @@ void ImGui_ImplSDL3_NewFrame()
ImGui_ImplSDL3_UpdateGamepads();
}
//--------------------------------------------------------------------------------------------------------
// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
// This is an _advanced_ and _optional_ feature, allowing the backend to create and handle multiple viewports simultaneously.
// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
//--------------------------------------------------------------------------------------------------------
// Helper structure we store in the void* PlatformUserData field of each ImGuiViewport to easily retrieve our backend data.
struct ImGui_ImplSDL3_ViewportData
{
SDL_Window* Window;
SDL_Window* ParentWindow;
Uint32 WindowID; // Stored in ImGuiViewport::PlatformHandle. Use SDL_GetWindowFromID() to get SDL_Window* from Uint32 WindowID.
bool WindowOwned;
SDL_GLContext GLContext;
ImGui_ImplSDL3_ViewportData() { Window = ParentWindow = nullptr; WindowID = 0; WindowOwned = false; GLContext = nullptr; }
~ImGui_ImplSDL3_ViewportData() { IM_ASSERT(Window == nullptr && GLContext == nullptr); }
};
static SDL_Window* ImGui_ImplSDL3_GetSDLWindowFromViewportID(ImGuiID viewport_id)
{
if (viewport_id != 0)
if (ImGuiViewport* viewport = ImGui::FindViewportByID(viewport_id))
{
SDL_WindowID window_id = (SDL_WindowID)(intptr_t)viewport->PlatformHandle;
return SDL_GetWindowFromID(window_id);
}
return nullptr;
}
static void ImGui_ImplSDL3_CreateWindow(ImGuiViewport* viewport)
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
ImGui_ImplSDL3_ViewportData* vd = IM_NEW(ImGui_ImplSDL3_ViewportData)();
viewport->PlatformUserData = vd;
vd->ParentWindow = ImGui_ImplSDL3_GetSDLWindowFromViewportID(viewport->ParentViewportId);
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
ImGui_ImplSDL3_ViewportData* main_viewport_data = (ImGui_ImplSDL3_ViewportData*)main_viewport->PlatformUserData;
// Share GL resources with main context
bool use_opengl = (main_viewport_data->GLContext != nullptr);
SDL_GLContext backup_context = nullptr;
if (use_opengl)
{
backup_context = SDL_GL_GetCurrentContext();
SDL_GL_SetAttribute(SDL_GL_SHARE_WITH_CURRENT_CONTEXT, 1);
SDL_GL_MakeCurrent(main_viewport_data->Window, main_viewport_data->GLContext);
}
SDL_WindowFlags sdl_flags = 0;
sdl_flags |= SDL_WINDOW_HIDDEN;
sdl_flags |= use_opengl ? SDL_WINDOW_OPENGL : (bd->UseVulkan ? SDL_WINDOW_VULKAN : 0);
sdl_flags |= SDL_GetWindowFlags(bd->Window) & SDL_WINDOW_HIGH_PIXEL_DENSITY;
sdl_flags |= (viewport->Flags & ImGuiViewportFlags_NoDecoration) ? SDL_WINDOW_BORDERLESS : 0;
sdl_flags |= (viewport->Flags & ImGuiViewportFlags_NoDecoration) ? 0 : SDL_WINDOW_RESIZABLE;
sdl_flags |= (viewport->Flags & ImGuiViewportFlags_NoTaskBarIcon) ? SDL_WINDOW_UTILITY : 0;
sdl_flags |= (viewport->Flags & ImGuiViewportFlags_TopMost) ? SDL_WINDOW_ALWAYS_ON_TOP : 0;
vd->Window = SDL_CreateWindow("No Title Yet", (int)viewport->Size.x, (int)viewport->Size.y, sdl_flags);
#ifndef __APPLE__ // On Mac, SDL3 Parenting appears to prevent viewport from appearing in another monitor
SDL_SetWindowParent(vd->Window, vd->ParentWindow);
#endif
SDL_SetWindowPosition(vd->Window, (int)viewport->Pos.x, (int)viewport->Pos.y);
vd->WindowOwned = true;
if (use_opengl)
{
vd->GLContext = SDL_GL_CreateContext(vd->Window);
SDL_GL_SetSwapInterval(0);
}
if (use_opengl && backup_context)
SDL_GL_MakeCurrent(vd->Window, backup_context);
ImGui_ImplSDL3_SetupPlatformHandles(viewport, vd->Window);
}
static void ImGui_ImplSDL3_DestroyWindow(ImGuiViewport* viewport)
{
if (ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData)
{
if (vd->GLContext && vd->WindowOwned)
SDL_GL_DestroyContext(vd->GLContext);
if (vd->Window && vd->WindowOwned)
SDL_DestroyWindow(vd->Window);
vd->GLContext = nullptr;
vd->Window = nullptr;
IM_DELETE(vd);
}
viewport->PlatformUserData = viewport->PlatformHandle = nullptr;
}
static void ImGui_ImplSDL3_ShowWindow(ImGuiViewport* viewport)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
#if defined(_WIN32) && !(defined(WINAPI_FAMILY) && ((defined(WINAPI_FAMILY_APP) && WINAPI_FAMILY == WINAPI_FAMILY_APP) || (defined(WINAPI_FAMILY_GAMES) && WINAPI_FAMILY == WINAPI_FAMILY_GAMES)))
HWND hwnd = (HWND)viewport->PlatformHandleRaw;
// SDL hack: Show icon in task bar (#7989)
// Note: SDL_WINDOW_UTILITY can be used to control task bar visibility, but on Windows, it does not affect child windows.
if (!(viewport->Flags & ImGuiViewportFlags_NoTaskBarIcon))
{
LONG ex_style = ::GetWindowLong(hwnd, GWL_EXSTYLE);
ex_style |= WS_EX_APPWINDOW;
ex_style &= ~WS_EX_TOOLWINDOW;
::ShowWindow(hwnd, SW_HIDE);
::SetWindowLong(hwnd, GWL_EXSTYLE, ex_style);
}
#endif
#ifdef __APPLE__
SDL_SetHint(SDL_HINT_WINDOW_ACTIVATE_WHEN_SHOWN, "1"); // Otherwise new window appear under
#else
SDL_SetHint(SDL_HINT_WINDOW_ACTIVATE_WHEN_SHOWN, (viewport->Flags & ImGuiViewportFlags_NoFocusOnAppearing) ? "0" : "1");
#endif
SDL_ShowWindow(vd->Window);
}
static void ImGui_ImplSDL3_UpdateWindow(ImGuiViewport* viewport)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
IM_UNUSED(vd);
#ifndef __APPLE__ // On Mac, SDL3 Parenting appears to prevent viewport from appearing in another monitor
// Update SDL3 parent if it changed _after_ creation.
// This is for advanced apps that are manipulating ParentViewportID manually.
SDL_Window* new_parent = ImGui_ImplSDL3_GetSDLWindowFromViewportID(viewport->ParentViewportId);
if (new_parent != vd->ParentWindow)
{
vd->ParentWindow = new_parent;
SDL_SetWindowParent(vd->Window, vd->ParentWindow);
}
#endif
}
static ImVec2 ImGui_ImplSDL3_GetWindowPos(ImGuiViewport* viewport)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
int x = 0, y = 0;
SDL_GetWindowPosition(vd->Window, &x, &y);
return ImVec2((float)x, (float)y);
}
static void ImGui_ImplSDL3_SetWindowPos(ImGuiViewport* viewport, ImVec2 pos)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
SDL_SetWindowPosition(vd->Window, (int)pos.x, (int)pos.y);
}
static ImVec2 ImGui_ImplSDL3_GetWindowSize(ImGuiViewport* viewport)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
int w = 0, h = 0;
SDL_GetWindowSize(vd->Window, &w, &h);
return ImVec2((float)w, (float)h);
}
static void ImGui_ImplSDL3_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
SDL_SetWindowSize(vd->Window, (int)size.x, (int)size.y);
}
static ImVec2 ImGui_ImplSDL3_GetWindowFramebufferScale(ImGuiViewport* viewport)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
ImVec2 framebuffer_scale;
ImGui_ImplSDL3_GetWindowSizeAndFramebufferScale(vd->Window, nullptr, &framebuffer_scale);
return framebuffer_scale;
}
static void ImGui_ImplSDL3_SetWindowTitle(ImGuiViewport* viewport, const char* title)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
SDL_SetWindowTitle(vd->Window, title);
}
static void ImGui_ImplSDL3_SetWindowAlpha(ImGuiViewport* viewport, float alpha)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
SDL_SetWindowOpacity(vd->Window, alpha);
}
static void ImGui_ImplSDL3_SetWindowFocus(ImGuiViewport* viewport)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
SDL_RaiseWindow(vd->Window);
}
static bool ImGui_ImplSDL3_GetWindowFocus(ImGuiViewport* viewport)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
return (SDL_GetWindowFlags(vd->Window) & SDL_WINDOW_INPUT_FOCUS) != 0;
}
static bool ImGui_ImplSDL3_GetWindowMinimized(ImGuiViewport* viewport)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
return (SDL_GetWindowFlags(vd->Window) & SDL_WINDOW_MINIMIZED) != 0;
}
static void ImGui_ImplSDL3_RenderWindow(ImGuiViewport* viewport, void*)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
if (vd->GLContext)
SDL_GL_MakeCurrent(vd->Window, vd->GLContext);
}
static void ImGui_ImplSDL3_SwapBuffers(ImGuiViewport* viewport, void*)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
if (vd->GLContext)
{
SDL_GL_MakeCurrent(vd->Window, vd->GLContext);
SDL_GL_SwapWindow(vd->Window);
}
}
// Vulkan support (the Vulkan renderer needs to call a platform-side support function to create the surface)
// SDL is graceful enough to _not_ need <vulkan/vulkan.h> so we can safely include this.
#include <SDL3/SDL_vulkan.h>
static int ImGui_ImplSDL3_CreateVkSurface(ImGuiViewport* viewport, ImU64 vk_instance, const void* vk_allocator, ImU64* out_vk_surface)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
(void)vk_allocator;
bool ret = SDL_Vulkan_CreateSurface(vd->Window, (VkInstance)vk_instance, (const VkAllocationCallbacks*)vk_allocator, (VkSurfaceKHR*)out_vk_surface);
return ret ? 0 : 1; // ret ? VK_SUCCESS : VK_NOT_READY
}
static void ImGui_ImplSDL3_InitMultiViewportSupport(SDL_Window* window, void* sdl_gl_context)
{
// Register platform interface (will be coupled with a renderer interface)
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Platform_CreateWindow = ImGui_ImplSDL3_CreateWindow;
platform_io.Platform_DestroyWindow = ImGui_ImplSDL3_DestroyWindow;
platform_io.Platform_ShowWindow = ImGui_ImplSDL3_ShowWindow;
platform_io.Platform_UpdateWindow = ImGui_ImplSDL3_UpdateWindow;
platform_io.Platform_SetWindowPos = ImGui_ImplSDL3_SetWindowPos;
platform_io.Platform_GetWindowPos = ImGui_ImplSDL3_GetWindowPos;
platform_io.Platform_SetWindowSize = ImGui_ImplSDL3_SetWindowSize;
platform_io.Platform_GetWindowSize = ImGui_ImplSDL3_GetWindowSize;
platform_io.Platform_GetWindowFramebufferScale = ImGui_ImplSDL3_GetWindowFramebufferScale;
platform_io.Platform_SetWindowFocus = ImGui_ImplSDL3_SetWindowFocus;
platform_io.Platform_GetWindowFocus = ImGui_ImplSDL3_GetWindowFocus;
platform_io.Platform_GetWindowMinimized = ImGui_ImplSDL3_GetWindowMinimized;
platform_io.Platform_SetWindowTitle = ImGui_ImplSDL3_SetWindowTitle;
platform_io.Platform_RenderWindow = ImGui_ImplSDL3_RenderWindow;
platform_io.Platform_SwapBuffers = ImGui_ImplSDL3_SwapBuffers;
platform_io.Platform_SetWindowAlpha = ImGui_ImplSDL3_SetWindowAlpha;
platform_io.Platform_CreateVkSurface = ImGui_ImplSDL3_CreateVkSurface;
// Register main window handle (which is owned by the main application, not by us)
// This is mostly for simplicity and consistency, so that our code (e.g. mouse handling etc.) can use same logic for main and secondary viewports.
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
ImGui_ImplSDL3_ViewportData* vd = IM_NEW(ImGui_ImplSDL3_ViewportData)();
vd->Window = window;
vd->WindowID = SDL_GetWindowID(window);
vd->WindowOwned = false;
vd->GLContext = (SDL_GLContext)sdl_gl_context;
main_viewport->PlatformUserData = vd;
main_viewport->PlatformHandle = (void*)(intptr_t)vd->WindowID;
}
static void ImGui_ImplSDL3_ShutdownMultiViewportSupport()
{
ImGui::DestroyPlatformWindows();
}
//-----------------------------------------------------------------------------
#if defined(__clang__)