// dear imgui: Platform Backend for GLFW with axmol spec // This needs to be used along with a Renderer (e.g. OpenGL3, Vulkan, WebGPU..) // (Info: GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.) // (Requires: GLFW 3.1+. Prefer GLFW 3.3+ or GLFW 3.4+ for full feature support.) // Implemented features: // [X] Platform: Clipboard support. // [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen/Pen (Windows only). // [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 GLFW_KEY_* values will also be supported unless IMGUI_DISABLE_OBSOLETE_KEYIO is set] // [X] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'. // [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange' (note: the resizing cursors requires GLFW 3.4+). // [X] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'. // Issues: // [ ] Platform: Multi-viewport support: ParentViewportID not honored, and so io.ConfigViewportsNoDefaultParent has no effect (minor). // 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. // If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp. // Read online: https://github.com/ocornut/imgui/tree/master/docs // CHANGELOG // (minor and older changes stripped away, please see git history for details) // 2023-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface. // 2023-07-18: Inputs: Revert ignoring mouse data on GLFW_CURSOR_DISABLED as it can be used differently. User may set ImGuiConfigFLags_NoMouse if desired. (#5625, #6609) // 2023-06-12: Accept glfwGetTime() not returning a monotonically increasing value. This seems to happens on some Windows setup when peripherals disconnect, and is likely to also happen on browser + Emscripten. (#6491) // 2023-04-04: Inputs: Added support for io.AddMouseSourceEvent() to discriminate ImGuiMouseSource_Mouse/ImGuiMouseSource_TouchScreen/ImGuiMouseSource_Pen on Windows ONLY, using a custom WndProc hook. (#2702) // 2023-03-16: Inputs: Fixed key modifiers handling on secondary viewports (docking branch). Broken on 2023/01/04. (#6248, #6034) // 2023-03-14: Emscripten: Avoid using glfwGetError() and glfwGetGamepadState() which are not correctly implemented in Emscripten emulation. (#6240) // 2023-02-03: Emscripten: Registering custom low-level mouse wheel handler to get more accurate scrolling impulses on Emscripten. (#4019, #6096) // 2023-01-18: Handle unsupported glfwGetVideoMode() call on e.g. Emscripten. // 2023-01-04: Inputs: Fixed mods state on Linux when using Alt-GR text input (e.g. German keyboard layout), could lead to broken text input. Revert a 2022/01/17 change were we resumed using mods provided by GLFW, turns out they were faulty. // 2022-11-22: Perform a dummy glfwGetError() read to cancel missing names with glfwGetKeyName(). (#5908) // 2022-10-18: Perform a dummy glfwGetError() read to cancel missing mouse cursors errors. Using GLFW_VERSION_COMBINED directly. (#5785) // 2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11. // 2022-09-26: Inputs: Renamed ImGuiKey_ModXXX introduced in 1.87 to ImGuiMod_XXX (old names still supported). // 2022-09-01: Inputs: Honor GLFW_CURSOR_DISABLED by not setting mouse position *EDIT* Reverted 2023-07-18. // 2022-04-30: Inputs: Fixed ImGui_ImplGlfw_TranslateUntranslatedKey() for lower case letters on OSX. // 2022-03-23: Inputs: Fixed a regression in 1.87 which resulted in keyboard modifiers events being reported incorrectly on Linux/X11. // 2022-02-07: Added ImGui_ImplGlfw_InstallCallbacks()/ImGui_ImplGlfw_RestoreCallbacks() helpers to facilitate user installing callbacks after initializing backend. // 2022-01-26: Inputs: replaced short-lived io.AddKeyModsEvent() (added two weeks ago) with io.AddKeyEvent() using ImGuiKey_ModXXX flags. Sorry for the confusion. // 2021-01-20: Inputs: calling new io.AddKeyAnalogEvent() for gamepad support, instead of writing directly to io.NavInputs[]. // 2022-01-17: Inputs: calling new io.AddMousePosEvent(), io.AddMouseButtonEvent(), io.AddMouseWheelEvent() API (1.87+). // 2022-01-17: Inputs: always update key mods next and before key event (not in NewFrame) to fix input queue with very low framerates. // 2022-01-12: *BREAKING CHANGE*: Now using glfwSetCursorPosCallback(). If you called ImGui_ImplGlfw_InitXXX() with install_callbacks = false, you MUST install glfwSetCursorPosCallback() and forward it to the backend via ImGui_ImplGlfw_CursorPosCallback(). // 2022-01-10: Inputs: calling new io.AddKeyEvent(), io.AddKeyModsEvent() + io.SetKeyEventNativeData() API (1.87+). Support for full ImGuiKey range. // 2022-01-05: Inputs: Converting GLFW untranslated keycodes back to translated keycodes (in the ImGui_ImplGlfw_KeyCallback() function) in order to match the behavior of every other backend, and facilitate the use of GLFW with lettered-shortcuts API. // 2021-08-17: *BREAKING CHANGE*: Now using glfwSetWindowFocusCallback() to calling io.AddFocusEvent(). If you called ImGui_ImplGlfw_InitXXX() with install_callbacks = false, you MUST install glfwSetWindowFocusCallback() and forward it to the backend via ImGui_ImplGlfw_WindowFocusCallback(). // 2021-07-29: *BREAKING CHANGE*: Now using glfwSetCursorEnterCallback(). MousePos is correctly reported when the host platform window is hovered but not focused. If you called ImGui_ImplGlfw_InitXXX() with install_callbacks = false, you MUST install glfwSetWindowFocusCallback() callback and forward it to the backend via ImGui_ImplGlfw_CursorEnterCallback(). // 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX). // 2020-01-17: Inputs: Disable error callback while assigning mouse cursors because some X11 setup don't have them and it generates errors. // 2019-12-05: Inputs: Added support for new mouse cursors added in GLFW 3.4+ (resizing cursors, not allowed cursor). // 2019-10-18: Misc: Previously installed user callbacks are now restored on shutdown. // 2019-07-21: Inputs: Added mapping for ImGuiKey_KeyPadEnter. // 2019-05-11: Inputs: Don't filter value from character callback before calling AddInputCharacter(). // 2019-03-12: Misc: Preserve DisplayFramebufferScale when main window is minimized. // 2018-11-30: Misc: Setting up io.BackendPlatformName so it can be displayed in the About Window. // 2018-11-07: Inputs: When installing our GLFW callbacks, we save user's previously installed ones - if any - and chain call them. // 2018-08-01: Inputs: Workaround for Emscripten which doesn't seem to handle focus related calls. // 2018-06-29: Inputs: Added support for the ImGuiMouseCursor_Hand cursor. // 2018-06-08: Misc: Extracted imgui_impl_glfw.cpp/.h away from the old combined GLFW+OpenGL/Vulkan examples. // 2018-03-20: Misc: Setup io.BackendFlags ImGuiBackendFlags_HasMouseCursors flag + honor ImGuiConfigFlags_NoMouseCursorChange flag. // 2018-02-20: Inputs: Added support for mouse cursors (ImGui::GetMouseCursor() value, passed to glfwSetCursor()). // 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves. // 2018-02-06: Inputs: Added mapping for ImGuiKey_Space. // 2018-01-25: Inputs: Added gamepad support if ImGuiConfigFlags_NavEnableGamepad is set. // 2018-01-25: Inputs: Honoring the io.WantSetMousePos by repositioning the mouse (when using navigation and ImGuiConfigFlags_NavMoveMouse is set). // 2018-01-20: Inputs: Added Horizontal Mouse Wheel support. // 2018-01-18: Inputs: Added mapping for ImGuiKey_Insert. // 2017-08-25: Inputs: MousePos set to -FLT_MAX,-FLT_MAX when mouse is unavailable/missing (instead of -1,-1). // 2016-10-15: Misc: Added a void* user_data parameter to Clipboard function handlers. #include "imgui_impl_ax.h" #include "cocos2d.h" #include "renderer/backend/Backend.h" #include #if defined(AX_USE_GL) #include "renderer/backend/opengl/OpenGLState.h" #endif USING_NS_AX; using namespace backend; // Clang warnings with -Weverything #if defined(__clang__) #pragma clang diagnostic push #pragma clang diagnostic ignored "-Wold-style-cast" // warning: use of old-style cast #pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness #endif // GLFW #include #ifdef _WIN32 #undef APIENTRY #define GLFW_EXPOSE_NATIVE_WIN32 #include // for glfwGetWin32Window() #endif #ifdef __APPLE__ #define GLFW_EXPOSE_NATIVE_COCOA typedef struct objc_object *id; extern "C" id glfwGetCocoaWindow(GLFWwindow* window); // #include // for glfwGetCocoaWindow() #endif #ifdef __EMSCRIPTEN__ #include #include #endif // We gather version tests as define in order to easily see which features are version-dependent. #define GLFW_VERSION_COMBINED (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 + GLFW_VERSION_REVISION) #define GLFW_HAS_WINDOW_TOPMOST (GLFW_VERSION_COMBINED >= 3200) // 3.2+ GLFW_FLOATING #define GLFW_HAS_WINDOW_HOVERED (GLFW_VERSION_COMBINED >= 3300) // 3.3+ GLFW_HOVERED #define GLFW_HAS_WINDOW_ALPHA (GLFW_VERSION_COMBINED >= 3300) // 3.3+ glfwSetWindowOpacity #define GLFW_HAS_PER_MONITOR_DPI (GLFW_VERSION_COMBINED >= 3300) // 3.3+ glfwGetMonitorContentScale #if defined(__EMSCRIPTEN__) || defined(__SWITCH__) // no Vulkan support in GLFW for Emscripten or homebrew Nintendo Switch #define GLFW_HAS_VULKAN (0) #else #define GLFW_HAS_VULKAN (GLFW_VERSION_COMBINED >= 3200) // 3.2+ glfwCreateWindowSurface #endif #define GLFW_HAS_FOCUS_WINDOW (GLFW_VERSION_COMBINED >= 3200) // 3.2+ glfwFocusWindow #define GLFW_HAS_FOCUS_ON_SHOW (GLFW_VERSION_COMBINED >= 3300) // 3.3+ GLFW_FOCUS_ON_SHOW #define GLFW_HAS_MONITOR_WORK_AREA (GLFW_VERSION_COMBINED >= 3300) // 3.3+ glfwGetMonitorWorkarea #define GLFW_HAS_OSX_WINDOW_POS_FIX (GLFW_VERSION_COMBINED >= 3301) // 3.3.1+ Fixed: Resizing window repositions it on MacOS #1553 #ifdef GLFW_RESIZE_NESW_CURSOR // Let's be nice to people who pulled GLFW between 2019-04-16 (3.4 define) and 2019-11-29 (cursors defines) // FIXME: Remove when GLFW 3.4 is released? #define GLFW_HAS_NEW_CURSORS (GLFW_VERSION_COMBINED >= 3400) // 3.4+ GLFW_RESIZE_ALL_CURSOR, GLFW_RESIZE_NESW_CURSOR, GLFW_RESIZE_NWSE_CURSOR, GLFW_NOT_ALLOWED_CURSOR #else #define GLFW_HAS_NEW_CURSORS (0) #endif #ifdef GLFW_MOUSE_PASSTHROUGH // Let's be nice to people who pulled GLFW between 2019-04-16 (3.4 define) and 2020-07-17 (passthrough) #define GLFW_HAS_MOUSE_PASSTHROUGH (GLFW_VERSION_COMBINED >= 3400) // 3.4+ GLFW_MOUSE_PASSTHROUGH #else #define GLFW_HAS_MOUSE_PASSTHROUGH (0) #endif #define GLFW_HAS_GAMEPAD_API (GLFW_VERSION_COMBINED >= 3300) // 3.3+ glfwGetGamepadState() new api #define GLFW_HAS_GETKEYNAME (GLFW_VERSION_COMBINED >= 3200) // 3.2+ glfwGetKeyName() #define GLFW_HAS_GETERROR (GLFW_VERSION_COMBINED >= 3300) // 3.3+ glfwGetError() // axmol spec data constexpr IndexFormat IMGUI_INDEX_FORMAT = sizeof(ImDrawIdx) == 2 ? IndexFormat::U_SHORT : IndexFormat::U_INT; struct ProgramInfoData { Program* program = nullptr; // Uniforms location UniformLocation texture{}; UniformLocation projection{}; // Vertex attributes location int position = 0; int uv = 0; int color = 0; VertexLayout layout{}; }; struct SavedRenderStateData { backend::CullMode cull{}; Viewport vp{}; ScissorRect scissorRect{}; bool scissorTest{}; bool depthTest{}; }; // end of axmol spec // GLFW data enum GlfwClientApi { GlfwClientApi_Unknown, GlfwClientApi_OpenGL, GlfwClientApi_Vulkan, GlfwClientApi_Metal, }; struct ImGui_ImplGlfw_Data { GLFWwindow* Window; GlfwClientApi ClientApi; double Time; GLFWwindow* MouseWindow; GLFWcursor* MouseCursors[ImGuiMouseCursor_COUNT]; ImVec2 LastValidMousePos; GLFWwindow* KeyOwnerWindows[GLFW_KEY_LAST]; bool InstalledCallbacks; bool CallbacksChainForAllWindows; bool WantUpdateMonitors; // Chain GLFW callbacks: our callbacks will call the user's previously installed callbacks, if any. GLFWwindowfocusfun PrevUserCallbackWindowFocus; GLFWcursorposfun PrevUserCallbackCursorPos; GLFWcursorenterfun PrevUserCallbackCursorEnter; GLFWmousebuttonfun PrevUserCallbackMousebutton; GLFWscrollfun PrevUserCallbackScroll; GLFWkeyfun PrevUserCallbackKey; GLFWcharfun PrevUserCallbackChar; GLFWmonitorfun PrevUserCallbackMonitor; #ifdef _WIN32 WNDPROC GlfwWndProc; #endif // ImGui_ImplGlfw_Data() { memset(this, 0, sizeof(*this)); } // axmol spec data std::chrono::steady_clock::time_point LastFrameTime{}; ImGuiImplCocos2dxLoadFontFun LoadCustomFont = nullptr; void* LoadCustomFontUserData = nullptr; ProgramInfoData ProgramInfo{}; ProgramInfoData ProgramFontInfo{}; bool FontDeviceObjectsDirty = false; Texture2D* FontTexture = nullptr; Mat4 Projection; // std::vector> CallbackCommands{}; std::vector> CustomCommands{}; Vector ProgramStates{}; SavedRenderStateData SavedRenderState{}; }; // Backend data stored in io.BackendPlatformUserData to allow support for multiple Dear ImGui contexts // It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts. // FIXME: multi-context support is not well tested and probably dysfunctional in this backend. // - Because glfwPollEvents() process all windows and some events may be called outside of it, you will need to register your own callbacks // (passing install_callbacks=false in ImGui_ImplGlfw_InitXXX functions), set the current dear imgui context and then call our callbacks. // - Otherwise we may need to store a GLFWWindow* -> ImGuiContext* map and handle this in the backend, adding a little bit of extra complexity to it. // FIXME: some shared resources (mouse cursor shape, gamepad) are mishandled when using multi-context. static ImGui_ImplGlfw_Data* ImGui_ImplGlfw_GetBackendData() { return ImGui::GetCurrentContext() ? (ImGui_ImplGlfw_Data*)ImGui::GetIO().BackendPlatformUserData : nullptr; } // Forward Declarations static void ImGui_ImplGlfw_UpdateMonitors(); static void ImGui_ImplGlfw_InitPlatformInterface(); static void ImGui_ImplGlfw_ShutdownPlatformInterface(); // Functions static const char* ImGui_ImplGlfw_GetClipboardText(void* user_data) { return glfwGetClipboardString((GLFWwindow*)user_data); } static void ImGui_ImplGlfw_SetClipboardText(void* user_data, const char* text) { glfwSetClipboardString((GLFWwindow*)user_data, text); } static ImGuiKey ImGui_ImplGlfw_KeyToImGuiKey(int key) { switch (key) { case GLFW_KEY_TAB: return ImGuiKey_Tab; case GLFW_KEY_LEFT: return ImGuiKey_LeftArrow; case GLFW_KEY_RIGHT: return ImGuiKey_RightArrow; case GLFW_KEY_UP: return ImGuiKey_UpArrow; case GLFW_KEY_DOWN: return ImGuiKey_DownArrow; case GLFW_KEY_PAGE_UP: return ImGuiKey_PageUp; case GLFW_KEY_PAGE_DOWN: return ImGuiKey_PageDown; case GLFW_KEY_HOME: return ImGuiKey_Home; case GLFW_KEY_END: return ImGuiKey_End; case GLFW_KEY_INSERT: return ImGuiKey_Insert; case GLFW_KEY_DELETE: return ImGuiKey_Delete; case GLFW_KEY_BACKSPACE: return ImGuiKey_Backspace; case GLFW_KEY_SPACE: return ImGuiKey_Space; case GLFW_KEY_ENTER: return ImGuiKey_Enter; case GLFW_KEY_ESCAPE: return ImGuiKey_Escape; case GLFW_KEY_APOSTROPHE: return ImGuiKey_Apostrophe; case GLFW_KEY_COMMA: return ImGuiKey_Comma; case GLFW_KEY_MINUS: return ImGuiKey_Minus; case GLFW_KEY_PERIOD: return ImGuiKey_Period; case GLFW_KEY_SLASH: return ImGuiKey_Slash; case GLFW_KEY_SEMICOLON: return ImGuiKey_Semicolon; case GLFW_KEY_EQUAL: return ImGuiKey_Equal; case GLFW_KEY_LEFT_BRACKET: return ImGuiKey_LeftBracket; case GLFW_KEY_BACKSLASH: return ImGuiKey_Backslash; case GLFW_KEY_RIGHT_BRACKET: return ImGuiKey_RightBracket; case GLFW_KEY_GRAVE_ACCENT: return ImGuiKey_GraveAccent; case GLFW_KEY_CAPS_LOCK: return ImGuiKey_CapsLock; case GLFW_KEY_SCROLL_LOCK: return ImGuiKey_ScrollLock; case GLFW_KEY_NUM_LOCK: return ImGuiKey_NumLock; case GLFW_KEY_PRINT_SCREEN: return ImGuiKey_PrintScreen; case GLFW_KEY_PAUSE: return ImGuiKey_Pause; case GLFW_KEY_KP_0: return ImGuiKey_Keypad0; case GLFW_KEY_KP_1: return ImGuiKey_Keypad1; case GLFW_KEY_KP_2: return ImGuiKey_Keypad2; case GLFW_KEY_KP_3: return ImGuiKey_Keypad3; case GLFW_KEY_KP_4: return ImGuiKey_Keypad4; case GLFW_KEY_KP_5: return ImGuiKey_Keypad5; case GLFW_KEY_KP_6: return ImGuiKey_Keypad6; case GLFW_KEY_KP_7: return ImGuiKey_Keypad7; case GLFW_KEY_KP_8: return ImGuiKey_Keypad8; case GLFW_KEY_KP_9: return ImGuiKey_Keypad9; case GLFW_KEY_KP_DECIMAL: return ImGuiKey_KeypadDecimal; case GLFW_KEY_KP_DIVIDE: return ImGuiKey_KeypadDivide; case GLFW_KEY_KP_MULTIPLY: return ImGuiKey_KeypadMultiply; case GLFW_KEY_KP_SUBTRACT: return ImGuiKey_KeypadSubtract; case GLFW_KEY_KP_ADD: return ImGuiKey_KeypadAdd; case GLFW_KEY_KP_ENTER: return ImGuiKey_KeypadEnter; case GLFW_KEY_KP_EQUAL: return ImGuiKey_KeypadEqual; case GLFW_KEY_LEFT_SHIFT: return ImGuiKey_LeftShift; case GLFW_KEY_LEFT_CONTROL: return ImGuiKey_LeftCtrl; case GLFW_KEY_LEFT_ALT: return ImGuiKey_LeftAlt; case GLFW_KEY_LEFT_SUPER: return ImGuiKey_LeftSuper; case GLFW_KEY_RIGHT_SHIFT: return ImGuiKey_RightShift; case GLFW_KEY_RIGHT_CONTROL: return ImGuiKey_RightCtrl; case GLFW_KEY_RIGHT_ALT: return ImGuiKey_RightAlt; case GLFW_KEY_RIGHT_SUPER: return ImGuiKey_RightSuper; case GLFW_KEY_MENU: return ImGuiKey_Menu; case GLFW_KEY_0: return ImGuiKey_0; case GLFW_KEY_1: return ImGuiKey_1; case GLFW_KEY_2: return ImGuiKey_2; case GLFW_KEY_3: return ImGuiKey_3; case GLFW_KEY_4: return ImGuiKey_4; case GLFW_KEY_5: return ImGuiKey_5; case GLFW_KEY_6: return ImGuiKey_6; case GLFW_KEY_7: return ImGuiKey_7; case GLFW_KEY_8: return ImGuiKey_8; case GLFW_KEY_9: return ImGuiKey_9; case GLFW_KEY_A: return ImGuiKey_A; case GLFW_KEY_B: return ImGuiKey_B; case GLFW_KEY_C: return ImGuiKey_C; case GLFW_KEY_D: return ImGuiKey_D; case GLFW_KEY_E: return ImGuiKey_E; case GLFW_KEY_F: return ImGuiKey_F; case GLFW_KEY_G: return ImGuiKey_G; case GLFW_KEY_H: return ImGuiKey_H; case GLFW_KEY_I: return ImGuiKey_I; case GLFW_KEY_J: return ImGuiKey_J; case GLFW_KEY_K: return ImGuiKey_K; case GLFW_KEY_L: return ImGuiKey_L; case GLFW_KEY_M: return ImGuiKey_M; case GLFW_KEY_N: return ImGuiKey_N; case GLFW_KEY_O: return ImGuiKey_O; case GLFW_KEY_P: return ImGuiKey_P; case GLFW_KEY_Q: return ImGuiKey_Q; case GLFW_KEY_R: return ImGuiKey_R; case GLFW_KEY_S: return ImGuiKey_S; case GLFW_KEY_T: return ImGuiKey_T; case GLFW_KEY_U: return ImGuiKey_U; case GLFW_KEY_V: return ImGuiKey_V; case GLFW_KEY_W: return ImGuiKey_W; case GLFW_KEY_X: return ImGuiKey_X; case GLFW_KEY_Y: return ImGuiKey_Y; case GLFW_KEY_Z: return ImGuiKey_Z; case GLFW_KEY_F1: return ImGuiKey_F1; case GLFW_KEY_F2: return ImGuiKey_F2; case GLFW_KEY_F3: return ImGuiKey_F3; case GLFW_KEY_F4: return ImGuiKey_F4; case GLFW_KEY_F5: return ImGuiKey_F5; case GLFW_KEY_F6: return ImGuiKey_F6; case GLFW_KEY_F7: return ImGuiKey_F7; case GLFW_KEY_F8: return ImGuiKey_F8; case GLFW_KEY_F9: return ImGuiKey_F9; case GLFW_KEY_F10: return ImGuiKey_F10; case GLFW_KEY_F11: return ImGuiKey_F11; case GLFW_KEY_F12: return ImGuiKey_F12; default: return ImGuiKey_None; } } // X11 does not include current pressed/released modifier key in 'mods' flags submitted by GLFW // See https://github.com/ocornut/imgui/issues/6034 and https://github.com/glfw/glfw/issues/1630 static void ImGui_ImplGlfw_UpdateKeyModifiers(GLFWwindow* window) { ImGuiIO& io = ImGui::GetIO(); io.AddKeyEvent(ImGuiMod_Ctrl, (glfwGetKey(window, GLFW_KEY_LEFT_CONTROL) == GLFW_PRESS) || (glfwGetKey(window, GLFW_KEY_RIGHT_CONTROL) == GLFW_PRESS)); io.AddKeyEvent(ImGuiMod_Shift, (glfwGetKey(window, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS) || (glfwGetKey(window, GLFW_KEY_RIGHT_SHIFT) == GLFW_PRESS)); io.AddKeyEvent(ImGuiMod_Alt, (glfwGetKey(window, GLFW_KEY_LEFT_ALT) == GLFW_PRESS) || (glfwGetKey(window, GLFW_KEY_RIGHT_ALT) == GLFW_PRESS)); io.AddKeyEvent(ImGuiMod_Super, (glfwGetKey(window, GLFW_KEY_LEFT_SUPER) == GLFW_PRESS) || (glfwGetKey(window, GLFW_KEY_RIGHT_SUPER) == GLFW_PRESS)); } static bool ImGui_ImplGlfw_ShouldChainCallback(GLFWwindow* window) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); return bd->CallbacksChainForAllWindows ? true : (window == bd->Window); } void ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow* window, int button, int action, int mods) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); if (bd->PrevUserCallbackMousebutton != nullptr && ImGui_ImplGlfw_ShouldChainCallback(window)) bd->PrevUserCallbackMousebutton(window, button, action, mods); ImGui_ImplGlfw_UpdateKeyModifiers(window); ImGuiIO& io = ImGui::GetIO(); if (button >= 0 && button < ImGuiMouseButton_COUNT) io.AddMouseButtonEvent(button, action == GLFW_PRESS); } void ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double xoffset, double yoffset) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); if (bd->PrevUserCallbackScroll != nullptr && ImGui_ImplGlfw_ShouldChainCallback(window)) bd->PrevUserCallbackScroll(window, xoffset, yoffset); #ifdef __EMSCRIPTEN__ // Ignore GLFW events: will be processed in ImGui_ImplEmscripten_WheelCallback(). return; #endif ImGuiIO& io = ImGui::GetIO(); io.AddMouseWheelEvent((float)xoffset, (float)yoffset); } static int ImGui_ImplGlfw_TranslateUntranslatedKey(int key, int scancode) { #if GLFW_HAS_GETKEYNAME && !defined(__EMSCRIPTEN__) // GLFW 3.1+ attempts to "untranslate" keys, which goes the opposite of what every other framework does, making using lettered shortcuts difficult. // (It had reasons to do so: namely GLFW is/was more likely to be used for WASD-type game controls rather than lettered shortcuts, but IHMO the 3.1 change could have been done differently) // See https://github.com/glfw/glfw/issues/1502 for details. // Adding a workaround to undo this (so our keys are translated->untranslated->translated, likely a lossy process). // This won't cover edge cases but this is at least going to cover common cases. if (key >= GLFW_KEY_KP_0 && key <= GLFW_KEY_KP_EQUAL) return key; GLFWerrorfun prev_error_callback = glfwSetErrorCallback(nullptr); const char* key_name = glfwGetKeyName(key, scancode); glfwSetErrorCallback(prev_error_callback); #if GLFW_HAS_GETERROR && !defined(__EMSCRIPTEN__) // Eat errors (see #5908) (void)glfwGetError(nullptr); #endif if (key_name && key_name[0] != 0 && key_name[1] == 0) { const char char_names[] = "`-=[]\\,;\'./"; const int char_keys[] = { GLFW_KEY_GRAVE_ACCENT, GLFW_KEY_MINUS, GLFW_KEY_EQUAL, GLFW_KEY_LEFT_BRACKET, GLFW_KEY_RIGHT_BRACKET, GLFW_KEY_BACKSLASH, GLFW_KEY_COMMA, GLFW_KEY_SEMICOLON, GLFW_KEY_APOSTROPHE, GLFW_KEY_PERIOD, GLFW_KEY_SLASH, 0 }; IM_ASSERT(IM_ARRAYSIZE(char_names) == IM_ARRAYSIZE(char_keys)); if (key_name[0] >= '0' && key_name[0] <= '9') { key = GLFW_KEY_0 + (key_name[0] - '0'); } else if (key_name[0] >= 'A' && key_name[0] <= 'Z') { key = GLFW_KEY_A + (key_name[0] - 'A'); } else if (key_name[0] >= 'a' && key_name[0] <= 'z') { key = GLFW_KEY_A + (key_name[0] - 'a'); } else if (const char* p = strchr(char_names, key_name[0])) { key = char_keys[p - char_names]; } } // if (action == GLFW_PRESS) printf("key %d scancode %d name '%s'\n", key, scancode, key_name); #else IM_UNUSED(scancode); #endif return key; } void ImGui_ImplGlfw_KeyCallback(GLFWwindow* window, int keycode, int scancode, int action, int mods) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); if (bd->PrevUserCallbackKey != nullptr && ImGui_ImplGlfw_ShouldChainCallback(window)) bd->PrevUserCallbackKey(window, keycode, scancode, action, mods); if (action != GLFW_PRESS && action != GLFW_RELEASE) return; ImGui_ImplGlfw_UpdateKeyModifiers(window); if (keycode >= 0 && keycode < IM_ARRAYSIZE(bd->KeyOwnerWindows)) bd->KeyOwnerWindows[keycode] = (action == GLFW_PRESS) ? window : nullptr; keycode = ImGui_ImplGlfw_TranslateUntranslatedKey(keycode, scancode); ImGuiIO& io = ImGui::GetIO(); ImGuiKey imgui_key = ImGui_ImplGlfw_KeyToImGuiKey(keycode); io.AddKeyEvent(imgui_key, (action == GLFW_PRESS)); io.SetKeyEventNativeData(imgui_key, keycode, scancode); // To support legacy indexing (<1.87 user code) } void ImGui_ImplGlfw_WindowFocusCallback(GLFWwindow* window, int focused) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); if (bd->PrevUserCallbackWindowFocus != nullptr && ImGui_ImplGlfw_ShouldChainCallback(window)) bd->PrevUserCallbackWindowFocus(window, focused); ImGuiIO& io = ImGui::GetIO(); io.AddFocusEvent(focused != 0); } void ImGui_ImplGlfw_CursorPosCallback(GLFWwindow* window, double x, double y) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); if (bd->PrevUserCallbackCursorPos != nullptr && ImGui_ImplGlfw_ShouldChainCallback(window)) bd->PrevUserCallbackCursorPos(window, x, y); ImGuiIO& io = ImGui::GetIO(); if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable) { int window_x, window_y; glfwGetWindowPos(window, &window_x, &window_y); x += window_x; y += window_y; } io.AddMousePosEvent((float)x, (float)y); bd->LastValidMousePos = ImVec2((float)x, (float)y); } // Workaround: X11 seems to send spurious Leave/Enter events which would make us lose our position, // so we back it up and restore on Leave/Enter (see https://github.com/ocornut/imgui/issues/4984) void ImGui_ImplGlfw_CursorEnterCallback(GLFWwindow* window, int entered) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); if (bd->PrevUserCallbackCursorEnter != nullptr && ImGui_ImplGlfw_ShouldChainCallback(window)) bd->PrevUserCallbackCursorEnter(window, entered); ImGuiIO& io = ImGui::GetIO(); if (entered) { bd->MouseWindow = window; io.AddMousePosEvent(bd->LastValidMousePos.x, bd->LastValidMousePos.y); } else if (!entered && bd->MouseWindow == window) { bd->LastValidMousePos = io.MousePos; bd->MouseWindow = nullptr; io.AddMousePosEvent(-FLT_MAX, -FLT_MAX); } } void ImGui_ImplGlfw_CharCallback(GLFWwindow* window, unsigned int c) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); if (bd->PrevUserCallbackChar != nullptr && ImGui_ImplGlfw_ShouldChainCallback(window)) bd->PrevUserCallbackChar(window, c); ImGuiIO& io = ImGui::GetIO(); io.AddInputCharacter(c); } void ImGui_ImplGlfw_MonitorCallback(GLFWmonitor*, int) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); bd->WantUpdateMonitors = true; } #ifdef __EMSCRIPTEN__ static EM_BOOL ImGui_ImplEmscripten_WheelCallback(int, const EmscriptenWheelEvent* ev, void*) { // Mimic Emscripten_HandleWheel() in SDL. // Corresponding equivalent in GLFW JS emulation layer has incorrect quantizing preventing small values. See #6096 float multiplier = 0.0f; if (ev->deltaMode == DOM_DELTA_PIXEL) { multiplier = 1.0f / 100.0f; } // 100 pixels make up a step. else if (ev->deltaMode == DOM_DELTA_LINE) { multiplier = 1.0f / 3.0f; } // 3 lines make up a step. else if (ev->deltaMode == DOM_DELTA_PAGE) { multiplier = 80.0f; } // A page makes up 80 steps. float wheel_x = ev->deltaX * -multiplier; float wheel_y = ev->deltaY * -multiplier; ImGuiIO& io = ImGui::GetIO(); io.AddMouseWheelEvent(wheel_x, wheel_y); //IMGUI_DEBUG_LOG("[Emsc] mode %d dx: %.2f, dy: %.2f, dz: %.2f --> feed %.2f %.2f\n", (int)ev->deltaMode, ev->deltaX, ev->deltaY, ev->deltaZ, wheel_x, wheel_y); return EM_TRUE; } #endif #ifdef _WIN32 // GLFW doesn't allow to distinguish Mouse vs TouchScreen vs Pen. // Add support for Win32 (based on imgui_impl_win32), because we rely on _TouchScreen info to trickle inputs differently. static ImGuiMouseSource GetMouseSourceFromMessageExtraInfo() { LPARAM extra_info = ::GetMessageExtraInfo(); if ((extra_info & 0xFFFFFF80) == 0xFF515700) return ImGuiMouseSource_Pen; if ((extra_info & 0xFFFFFF80) == 0xFF515780) return ImGuiMouseSource_TouchScreen; return ImGuiMouseSource_Mouse; } static LRESULT CALLBACK ImGui_ImplGlfw_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); switch (msg) { case WM_MOUSEMOVE: case WM_NCMOUSEMOVE: case WM_LBUTTONDOWN: case WM_LBUTTONDBLCLK: case WM_LBUTTONUP: case WM_RBUTTONDOWN: case WM_RBUTTONDBLCLK: case WM_RBUTTONUP: case WM_MBUTTONDOWN: case WM_MBUTTONDBLCLK: case WM_MBUTTONUP: case WM_XBUTTONDOWN: case WM_XBUTTONDBLCLK: case WM_XBUTTONUP: ImGui::GetIO().AddMouseSourceEvent(GetMouseSourceFromMessageExtraInfo()); break; // We have submitted https://github.com/glfw/glfw/pull/1568 to allow GLFW to support "transparent inputs". // In the meanwhile we implement custom per-platform workarounds here (FIXME-VIEWPORT: Implement same work-around for Linux/OSX!) #if !GLFW_HAS_MOUSE_PASSTHROUGH && GLFW_HAS_WINDOW_HOVERED case WM_NCHITTEST: { // Let mouse pass-through the window. This will allow the backend to call io.AddMouseViewportEvent() properly (which is OPTIONAL). // The ImGuiViewportFlags_NoInputs flag is set while dragging a viewport, as want to detect the window behind the one we are dragging. // If you cannot easily access those viewport flags from your windowing/event code: you may manually synchronize its state e.g. in // your main loop after calling UpdatePlatformWindows(). Iterate all viewports/platform windows and pass the flag to your windowing system. ImGuiViewport* viewport = (ImGuiViewport*)::GetPropA(hWnd, "IMGUI_VIEWPORT"); if (viewport && (viewport->Flags & ImGuiViewportFlags_NoInputs)) return HTTRANSPARENT; break; } #endif } return ::CallWindowProc(bd->GlfwWndProc, hWnd, msg, wParam, lParam); } #endif void ImGui_ImplGlfw_InstallCallbacks(GLFWwindow* window) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); IM_ASSERT(bd->InstalledCallbacks == false && "Callbacks already installed!"); IM_ASSERT(bd->Window == window); bd->PrevUserCallbackWindowFocus = glfwSetWindowFocusCallback(window, ImGui_ImplGlfw_WindowFocusCallback); bd->PrevUserCallbackCursorEnter = glfwSetCursorEnterCallback(window, ImGui_ImplGlfw_CursorEnterCallback); bd->PrevUserCallbackCursorPos = glfwSetCursorPosCallback(window, ImGui_ImplGlfw_CursorPosCallback); bd->PrevUserCallbackMousebutton = glfwSetMouseButtonCallback(window, ImGui_ImplGlfw_MouseButtonCallback); bd->PrevUserCallbackScroll = glfwSetScrollCallback(window, ImGui_ImplGlfw_ScrollCallback); bd->PrevUserCallbackKey = glfwSetKeyCallback(window, ImGui_ImplGlfw_KeyCallback); bd->PrevUserCallbackChar = glfwSetCharCallback(window, ImGui_ImplGlfw_CharCallback); bd->PrevUserCallbackMonitor = glfwSetMonitorCallback(ImGui_ImplGlfw_MonitorCallback); bd->InstalledCallbacks = true; } void ImGui_ImplGlfw_RestoreCallbacks(GLFWwindow* window) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); IM_ASSERT(bd->InstalledCallbacks == true && "Callbacks not installed!"); IM_ASSERT(bd->Window == window); glfwSetWindowFocusCallback(window, bd->PrevUserCallbackWindowFocus); glfwSetCursorEnterCallback(window, bd->PrevUserCallbackCursorEnter); glfwSetCursorPosCallback(window, bd->PrevUserCallbackCursorPos); glfwSetMouseButtonCallback(window, bd->PrevUserCallbackMousebutton); glfwSetScrollCallback(window, bd->PrevUserCallbackScroll); glfwSetKeyCallback(window, bd->PrevUserCallbackKey); glfwSetCharCallback(window, bd->PrevUserCallbackChar); glfwSetMonitorCallback(bd->PrevUserCallbackMonitor); bd->InstalledCallbacks = false; bd->PrevUserCallbackWindowFocus = nullptr; bd->PrevUserCallbackCursorEnter = nullptr; bd->PrevUserCallbackCursorPos = nullptr; bd->PrevUserCallbackMousebutton = nullptr; bd->PrevUserCallbackScroll = nullptr; bd->PrevUserCallbackKey = nullptr; bd->PrevUserCallbackChar = nullptr; bd->PrevUserCallbackMonitor = nullptr; } // Set to 'true' to enable chaining installed callbacks for all windows (including secondary viewports created by backends or by user. // This is 'false' by default meaning we only chain callbacks for the main viewport. // We cannot set this to 'true' by default because user callbacks code may be not testing the 'window' parameter of their callback. // If you set this to 'true' your user callback code will need to make sure you are testing the 'window' parameter. void ImGui_ImplGlfw_SetCallbacksChainForAllWindows(bool chain_for_all_windows) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); bd->CallbacksChainForAllWindows = chain_for_all_windows; } static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, GlfwClientApi client_api) { ImGuiIO& io = ImGui::GetIO(); IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!"); //printf("GLFW_VERSION: %d.%d.%d (%d)", GLFW_VERSION_MAJOR, GLFW_VERSION_MINOR, GLFW_VERSION_REVISION, GLFW_VERSION_COMBINED); // Setup backend capabilities flags ImGui_ImplGlfw_Data* bd = IM_NEW(ImGui_ImplGlfw_Data)(); io.BackendPlatformUserData = (void*)bd; io.BackendPlatformName = "imgui_impl_glfw"; io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors; // We can honor GetMouseCursor() values (optional) io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos; // We can honor io.WantSetMousePos requests (optional, rarely used) #ifndef __EMSCRIPTEN__ io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports; // We can create multi-viewports on the Platform side (optional) #endif #if GLFW_HAS_MOUSE_PASSTHROUGH || (GLFW_HAS_WINDOW_HOVERED && defined(_WIN32)) io.BackendFlags |= ImGuiBackendFlags_HasMouseHoveredViewport; // We can call io.AddMouseViewportEvent() with correct data (optional) #endif bd->Window = window; bd->Time = 0.0; bd->WantUpdateMonitors = true; io.SetClipboardTextFn = ImGui_ImplGlfw_SetClipboardText; io.GetClipboardTextFn = ImGui_ImplGlfw_GetClipboardText; io.ClipboardUserData = bd->Window; // Create mouse cursors // (By design, on X11 cursors are user configurable and some cursors may be missing. When a cursor doesn't exist, // GLFW will emit an error which will often be printed by the app, so we temporarily disable error reporting. // Missing cursors will return nullptr and our _UpdateMouseCursor() function will use the Arrow cursor instead.) GLFWerrorfun prev_error_callback = glfwSetErrorCallback(nullptr); bd->MouseCursors[ImGuiMouseCursor_Arrow] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR); bd->MouseCursors[ImGuiMouseCursor_TextInput] = glfwCreateStandardCursor(GLFW_IBEAM_CURSOR); bd->MouseCursors[ImGuiMouseCursor_ResizeNS] = glfwCreateStandardCursor(GLFW_VRESIZE_CURSOR); bd->MouseCursors[ImGuiMouseCursor_ResizeEW] = glfwCreateStandardCursor(GLFW_HRESIZE_CURSOR); bd->MouseCursors[ImGuiMouseCursor_Hand] = glfwCreateStandardCursor(GLFW_HAND_CURSOR); #if GLFW_HAS_NEW_CURSORS bd->MouseCursors[ImGuiMouseCursor_ResizeAll] = glfwCreateStandardCursor(GLFW_RESIZE_ALL_CURSOR); bd->MouseCursors[ImGuiMouseCursor_ResizeNESW] = glfwCreateStandardCursor(GLFW_RESIZE_NESW_CURSOR); bd->MouseCursors[ImGuiMouseCursor_ResizeNWSE] = glfwCreateStandardCursor(GLFW_RESIZE_NWSE_CURSOR); bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = glfwCreateStandardCursor(GLFW_NOT_ALLOWED_CURSOR); #else bd->MouseCursors[ImGuiMouseCursor_ResizeAll] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR); bd->MouseCursors[ImGuiMouseCursor_ResizeNESW] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR); bd->MouseCursors[ImGuiMouseCursor_ResizeNWSE] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR); bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR); #endif glfwSetErrorCallback(prev_error_callback); #if GLFW_HAS_GETERROR && !defined(__EMSCRIPTEN__) // Eat errors (see #5908) (void)glfwGetError(nullptr); #endif // Chain GLFW callbacks: our callbacks will call the user's previously installed callbacks, if any. if (install_callbacks) ImGui_ImplGlfw_InstallCallbacks(window); // Register Emscripten Wheel callback to workaround issue in Emscripten GLFW Emulation (#6096) // We intentionally do not check 'if (install_callbacks)' here, as some users may set it to false and call GLFW callback themselves. // FIXME: May break chaining in case user registered their own Emscripten callback? #ifdef __EMSCRIPTEN__ emscripten_set_wheel_callback(EMSCRIPTEN_EVENT_TARGET_DOCUMENT, nullptr, false, ImGui_ImplEmscripten_WheelCallback); #endif // Update monitors the first time (note: monitor callback are broken in GLFW 3.2 and earlier, see github.com/glfw/glfw/issues/784) ImGui_ImplGlfw_UpdateMonitors(); glfwSetMonitorCallback(ImGui_ImplGlfw_MonitorCallback); // Set platform dependent data in viewport ImGuiViewport* main_viewport = ImGui::GetMainViewport(); main_viewport->PlatformHandle = (void*)bd->Window; #ifdef _WIN32 main_viewport->PlatformHandleRaw = glfwGetWin32Window(bd->Window); #elif defined(__APPLE__) main_viewport->PlatformHandleRaw = (void*)glfwGetCocoaWindow(bd->Window); #else IM_UNUSED(main_viewport); #endif if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable) ImGui_ImplGlfw_InitPlatformInterface(); // Windows: register a WndProc hook so we can intercept some messages. #ifdef _WIN32 bd->GlfwWndProc = (WNDPROC)::GetWindowLongPtr((HWND)main_viewport->PlatformHandleRaw, GWLP_WNDPROC); IM_ASSERT(bd->GlfwWndProc != nullptr); ::SetWindowLongPtr((HWND)main_viewport->PlatformHandleRaw, GWLP_WNDPROC, (LONG_PTR)ImGui_ImplGlfw_WndProc); #endif bd->ClientApi = client_api; return true; } bool ImGui_ImplGlfw_InitForOpenGL(GLFWwindow* window, bool install_callbacks) { return ImGui_ImplGlfw_Init(window, install_callbacks, GlfwClientApi_OpenGL); } bool ImGui_ImplGlfw_InitForVulkan(GLFWwindow* window, bool install_callbacks) { return ImGui_ImplGlfw_Init(window, install_callbacks, GlfwClientApi_Vulkan); } bool ImGui_ImplGlfw_InitForOther(GLFWwindow* window, bool install_callbacks) { return ImGui_ImplGlfw_Init(window, install_callbacks, GlfwClientApi_Unknown); } void ImGui_ImplGlfw_Shutdown() { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); IM_ASSERT(bd != nullptr && "No platform backend to shutdown, or already shutdown?"); ImGuiIO& io = ImGui::GetIO(); ImGui_ImplGlfw_ShutdownPlatformInterface(); if (bd->InstalledCallbacks) ImGui_ImplGlfw_RestoreCallbacks(bd->Window); #ifdef __EMSCRIPTEN__ emscripten_set_wheel_callback(EMSCRIPTEN_EVENT_TARGET_DOCUMENT, nullptr, false, nullptr); #endif for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++) glfwDestroyCursor(bd->MouseCursors[cursor_n]); // Windows: register a WndProc hook so we can intercept some messages. #ifdef _WIN32 ImGuiViewport* main_viewport = ImGui::GetMainViewport(); ::SetWindowLongPtr((HWND)main_viewport->PlatformHandleRaw, GWLP_WNDPROC, (LONG_PTR)bd->GlfwWndProc); bd->GlfwWndProc = nullptr; #endif io.BackendPlatformName = nullptr; io.BackendPlatformUserData = nullptr; io.BackendFlags &= ~(ImGuiBackendFlags_HasMouseCursors | ImGuiBackendFlags_HasSetMousePos | ImGuiBackendFlags_HasGamepad | ImGuiBackendFlags_PlatformHasViewports | ImGuiBackendFlags_HasMouseHoveredViewport); IM_DELETE(bd); } static void ImGui_ImplGlfw_UpdateMouseData() { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); ImGuiIO& io = ImGui::GetIO(); ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO(); ImGuiID mouse_viewport_id = 0; const ImVec2 mouse_pos_prev = io.MousePos; for (int n = 0; n < platform_io.Viewports.Size; n++) { ImGuiViewport* viewport = platform_io.Viewports[n]; GLFWwindow* window = (GLFWwindow*)viewport->PlatformHandle; #ifdef __EMSCRIPTEN__ const bool is_window_focused = true; #else const bool is_window_focused = glfwGetWindowAttrib(window, GLFW_FOCUSED) != 0; #endif if (is_window_focused) { // (Optional) Set OS mouse position from Dear ImGui if requested (rarely used, only when ImGuiConfigFlags_NavEnableSetMousePos is enabled by user) // When multi-viewports are enabled, all Dear ImGui positions are same as OS positions. if (io.WantSetMousePos) glfwSetCursorPos(window, (double)(mouse_pos_prev.x - viewport->Pos.x), (double)(mouse_pos_prev.y - viewport->Pos.y)); // (Optional) Fallback to provide mouse position when focused (ImGui_ImplGlfw_CursorPosCallback already provides this when hovered or captured) if (bd->MouseWindow == nullptr) { double mouse_x, mouse_y; glfwGetCursorPos(window, &mouse_x, &mouse_y); if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable) { // 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) // 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) int window_x, window_y; glfwGetWindowPos(window, &window_x, &window_y); mouse_x += window_x; mouse_y += window_y; } bd->LastValidMousePos = ImVec2((float)mouse_x, (float)mouse_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. // - [X] GLFW >= 3.3 backend ON WINDOWS ONLY does correctly ignore viewports with the _NoInputs flag. // - [!] GLFW <= 3.2 backend CANNOT correctly ignore viewports with the _NoInputs flag, and CANNOT reported Hovered Viewport because of mouse capture. // 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] GLFW backend correctly reports this regardless of another viewport behind focused and dragged from (we need this to find a useful drag and drop target). // FIXME: This is currently only correct on Win32. See what we do below with the WM_NCHITTEST, missing an equivalent for other systems. // See https://github.com/glfw/glfw/issues/1236 if you want to help in making this a GLFW feature. #if GLFW_HAS_MOUSE_PASSTHROUGH || (GLFW_HAS_WINDOW_HOVERED && defined(_WIN32)) const bool window_no_input = (viewport->Flags & ImGuiViewportFlags_NoInputs) != 0; #if GLFW_HAS_MOUSE_PASSTHROUGH glfwSetWindowAttrib(window, GLFW_MOUSE_PASSTHROUGH, window_no_input); #endif if (glfwGetWindowAttrib(window, GLFW_HOVERED) && !window_no_input) mouse_viewport_id = viewport->ID; #else // We cannot use bd->MouseWindow maintained from CursorEnter/Leave callbacks, because it is locked to the window capturing mouse. #endif } if (io.BackendFlags & ImGuiBackendFlags_HasMouseHoveredViewport) io.AddMouseViewportEvent(mouse_viewport_id); } static void ImGui_ImplGlfw_UpdateMouseCursor() { ImGuiIO& io = ImGui::GetIO(); ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); if ((io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange) || glfwGetInputMode(bd->Window, GLFW_CURSOR) == GLFW_CURSOR_DISABLED) return; ImGuiMouseCursor imgui_cursor = ImGui::GetMouseCursor(); ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO(); for (int n = 0; n < platform_io.Viewports.Size; n++) { GLFWwindow* window = (GLFWwindow*)platform_io.Viewports[n]->PlatformHandle; if (imgui_cursor == ImGuiMouseCursor_None || io.MouseDrawCursor) { // Hide OS mouse cursor if imgui is drawing it or if it wants no cursor glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_HIDDEN); } else { // Show OS mouse cursor // FIXME-PLATFORM: Unfocused windows seems to fail changing the mouse cursor with GLFW 3.2, but 3.3 works here. glfwSetCursor(window, bd->MouseCursors[imgui_cursor] ? bd->MouseCursors[imgui_cursor] : bd->MouseCursors[ImGuiMouseCursor_Arrow]); glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL); } } } // Update gamepad inputs static inline float Saturate(float v) { return v < 0.0f ? 0.0f : v > 1.0f ? 1.0f : v; } static void ImGui_ImplGlfw_UpdateGamepads() { ImGuiIO& io = ImGui::GetIO(); if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0) // FIXME: Technically feeding gamepad shouldn't depend on this now that they are regular inputs. return; io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad; #if GLFW_HAS_GAMEPAD_API && !defined(__EMSCRIPTEN__) GLFWgamepadstate gamepad; if (!glfwGetGamepadState(GLFW_JOYSTICK_1, &gamepad)) return; #define MAP_BUTTON(KEY_NO, BUTTON_NO, _UNUSED) do { io.AddKeyEvent(KEY_NO, gamepad.buttons[BUTTON_NO] != 0); } while (0) #define MAP_ANALOG(KEY_NO, AXIS_NO, _UNUSED, V0, V1) do { float v = gamepad.axes[AXIS_NO]; v = (v - V0) / (V1 - V0); io.AddKeyAnalogEvent(KEY_NO, v > 0.10f, Saturate(v)); } while (0) #else int axes_count = 0, buttons_count = 0; const float* axes = glfwGetJoystickAxes(GLFW_JOYSTICK_1, &axes_count); const unsigned char* buttons = glfwGetJoystickButtons(GLFW_JOYSTICK_1, &buttons_count); if (axes_count == 0 || buttons_count == 0) return; #define MAP_BUTTON(KEY_NO, _UNUSED, BUTTON_NO) do { io.AddKeyEvent(KEY_NO, (buttons_count > BUTTON_NO && buttons[BUTTON_NO] == GLFW_PRESS)); } while (0) #define MAP_ANALOG(KEY_NO, _UNUSED, AXIS_NO, V0, V1) do { float v = (axes_count > AXIS_NO) ? axes[AXIS_NO] : V0; v = (v - V0) / (V1 - V0); io.AddKeyAnalogEvent(KEY_NO, v > 0.10f, Saturate(v)); } while (0) #endif io.BackendFlags |= ImGuiBackendFlags_HasGamepad; MAP_BUTTON(ImGuiKey_GamepadStart, GLFW_GAMEPAD_BUTTON_START, 7); MAP_BUTTON(ImGuiKey_GamepadBack, GLFW_GAMEPAD_BUTTON_BACK, 6); MAP_BUTTON(ImGuiKey_GamepadFaceLeft, GLFW_GAMEPAD_BUTTON_X, 2); // Xbox X, PS Square MAP_BUTTON(ImGuiKey_GamepadFaceRight, GLFW_GAMEPAD_BUTTON_B, 1); // Xbox B, PS Circle MAP_BUTTON(ImGuiKey_GamepadFaceUp, GLFW_GAMEPAD_BUTTON_Y, 3); // Xbox Y, PS Triangle MAP_BUTTON(ImGuiKey_GamepadFaceDown, GLFW_GAMEPAD_BUTTON_A, 0); // Xbox A, PS Cross MAP_BUTTON(ImGuiKey_GamepadDpadLeft, GLFW_GAMEPAD_BUTTON_DPAD_LEFT, 13); MAP_BUTTON(ImGuiKey_GamepadDpadRight, GLFW_GAMEPAD_BUTTON_DPAD_RIGHT, 11); MAP_BUTTON(ImGuiKey_GamepadDpadUp, GLFW_GAMEPAD_BUTTON_DPAD_UP, 10); MAP_BUTTON(ImGuiKey_GamepadDpadDown, GLFW_GAMEPAD_BUTTON_DPAD_DOWN, 12); MAP_BUTTON(ImGuiKey_GamepadL1, GLFW_GAMEPAD_BUTTON_LEFT_BUMPER, 4); MAP_BUTTON(ImGuiKey_GamepadR1, GLFW_GAMEPAD_BUTTON_RIGHT_BUMPER, 5); MAP_ANALOG(ImGuiKey_GamepadL2, GLFW_GAMEPAD_AXIS_LEFT_TRIGGER, 4, -0.75f, +1.0f); MAP_ANALOG(ImGuiKey_GamepadR2, GLFW_GAMEPAD_AXIS_RIGHT_TRIGGER, 5, -0.75f, +1.0f); MAP_BUTTON(ImGuiKey_GamepadL3, GLFW_GAMEPAD_BUTTON_LEFT_THUMB, 8); MAP_BUTTON(ImGuiKey_GamepadR3, GLFW_GAMEPAD_BUTTON_RIGHT_THUMB, 9); MAP_ANALOG(ImGuiKey_GamepadLStickLeft, GLFW_GAMEPAD_AXIS_LEFT_X, 0, -0.25f, -1.0f); MAP_ANALOG(ImGuiKey_GamepadLStickRight, GLFW_GAMEPAD_AXIS_LEFT_X, 0, +0.25f, +1.0f); MAP_ANALOG(ImGuiKey_GamepadLStickUp, GLFW_GAMEPAD_AXIS_LEFT_Y, 1, -0.25f, -1.0f); MAP_ANALOG(ImGuiKey_GamepadLStickDown, GLFW_GAMEPAD_AXIS_LEFT_Y, 1, +0.25f, +1.0f); MAP_ANALOG(ImGuiKey_GamepadRStickLeft, GLFW_GAMEPAD_AXIS_RIGHT_X, 2, -0.25f, -1.0f); MAP_ANALOG(ImGuiKey_GamepadRStickRight, GLFW_GAMEPAD_AXIS_RIGHT_X, 2, +0.25f, +1.0f); MAP_ANALOG(ImGuiKey_GamepadRStickUp, GLFW_GAMEPAD_AXIS_RIGHT_Y, 3, -0.25f, -1.0f); MAP_ANALOG(ImGuiKey_GamepadRStickDown, GLFW_GAMEPAD_AXIS_RIGHT_Y, 3, +0.25f, +1.0f); #undef MAP_BUTTON #undef MAP_ANALOG } static void ImGui_ImplGlfw_UpdateMonitors() { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO(); bd->WantUpdateMonitors = false; int monitors_count = 0; GLFWmonitor** glfw_monitors = glfwGetMonitors(&monitors_count); if (monitors_count == 0) // Preserve existing monitor list if there are none. Happens on macOS sleeping (#5683) return; platform_io.Monitors.resize(0); for (int n = 0; n < monitors_count; n++) { ImGuiPlatformMonitor monitor; int x, y; glfwGetMonitorPos(glfw_monitors[n], &x, &y); const GLFWvidmode* vid_mode = glfwGetVideoMode(glfw_monitors[n]); if (vid_mode == nullptr) continue; // Failed to get Video mode (e.g. Emscripten does not support this function) monitor.MainPos = monitor.WorkPos = ImVec2((float)x, (float)y); monitor.MainSize = monitor.WorkSize = ImVec2((float)vid_mode->width, (float)vid_mode->height); #if GLFW_HAS_MONITOR_WORK_AREA int w, h; glfwGetMonitorWorkarea(glfw_monitors[n], &x, &y, &w, &h); if (w > 0 && h > 0) // Workaround a small GLFW issue reporting zero on monitor changes: https://github.com/glfw/glfw/pull/1761 { monitor.WorkPos = ImVec2((float)x, (float)y); monitor.WorkSize = ImVec2((float)w, (float)h); } #endif #if GLFW_HAS_PER_MONITOR_DPI // 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. float x_scale, y_scale; glfwGetMonitorContentScale(glfw_monitors[n], &x_scale, &y_scale); monitor.DpiScale = x_scale; #endif monitor.PlatformHandle = (void*)glfw_monitors[n]; // [...] GLFW doc states: "guaranteed to be valid only until the monitor configuration changes" platform_io.Monitors.push_back(monitor); } } void ImGui_ImplGlfw_NewFrame() { ImGuiIO& io = ImGui::GetIO(); ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplGlfw_InitForXXX()?"); // Setup display size (every frame to accommodate for window resizing) int w, h; int display_w, display_h; glfwGetWindowSize(bd->Window, &w, &h); glfwGetFramebufferSize(bd->Window, &display_w, &display_h); io.DisplaySize = ImVec2((float)w, (float)h); if (w > 0 && h > 0) io.DisplayFramebufferScale = ImVec2((float)display_w / (float)w, (float)display_h / (float)h); if (bd->WantUpdateMonitors) ImGui_ImplGlfw_UpdateMonitors(); // Setup time step // (Accept glfwGetTime() not returning a monotonically increasing value. Seems to happens on disconnecting peripherals and probably on VMs and Emscripten, see #6491, #6189, #6114, #3644) double current_time = glfwGetTime(); if (current_time <= bd->Time) current_time = bd->Time + 0.00001f; io.DeltaTime = bd->Time > 0.0 ? (float)(current_time - bd->Time) : (float)(1.0f / 60.0f); bd->Time = current_time; ImGui_ImplGlfw_UpdateMouseData(); ImGui_ImplGlfw_UpdateMouseCursor(); // Update game controllers (if enabled and available) ImGui_ImplGlfw_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* RendererUserData field of each ImGuiViewport to easily retrieve our backend data. struct ImGui_ImplGlfw_ViewportData { GLFWwindow* Window; bool WindowOwned; int IgnoreWindowPosEventFrame; int IgnoreWindowSizeEventFrame; ImGui_ImplGlfw_ViewportData() { Window = nullptr; WindowOwned = false; IgnoreWindowSizeEventFrame = IgnoreWindowPosEventFrame = -1; } ~ImGui_ImplGlfw_ViewportData() { IM_ASSERT(Window == nullptr); } }; static void ImGui_ImplAx_makeCurrent(GLFWwindow* window) { glfwMakeContextCurrent(window); #if defined(AX_USE_GL) auto p = glfwGetWindowUserPointer(window); if (!p) { p = new OpenGLState(); glfwSetWindowUserPointer(window, p); # if AX_GLES_PROFILE != 200 // this is a new OpenGLContext, create default VAO for it when core profile enabled GLuint vao; glGenVertexArrays(1, &vao); glBindVertexArray(vao); # endif } if (backend::__gl != p) { backend::__gl->resetVAO(); backend::__gl = (OpenGLState*)p; } #endif } static void ImGui_ImplGlfw_WindowCloseCallback(GLFWwindow* window) { if (ImGuiViewport* viewport = ImGui::FindViewportByPlatformHandle(window)) viewport->PlatformRequestClose = true; } // GLFW may dispatch window pos/size events after calling glfwSetWindowPos()/glfwSetWindowSize(). // However: depending on the platform the callback may be invoked at different time: // - on Windows it appears to be called within the glfwSetWindowPos()/glfwSetWindowSize() call // - on Linux it is queued and invoked during glfwPollEvents() // Because the event doesn't always fire on glfwSetWindowXXX() we use a frame counter tag to only // ignore recent glfwSetWindowXXX() calls. static void ImGui_ImplGlfw_WindowPosCallback(GLFWwindow* window, int, int) { if (ImGuiViewport* viewport = ImGui::FindViewportByPlatformHandle(window)) { if (ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData) { bool ignore_event = (ImGui::GetFrameCount() <= vd->IgnoreWindowPosEventFrame + 1); //data->IgnoreWindowPosEventFrame = -1; if (ignore_event) return; } viewport->PlatformRequestMove = true; } } static void ImGui_ImplGlfw_WindowSizeCallback(GLFWwindow* window, int, int) { if (ImGuiViewport* viewport = ImGui::FindViewportByPlatformHandle(window)) { if (ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData) { bool ignore_event = (ImGui::GetFrameCount() <= vd->IgnoreWindowSizeEventFrame + 1); //data->IgnoreWindowSizeEventFrame = -1; if (ignore_event) return; } viewport->PlatformRequestResize = true; } } static void ImGui_ImplGlfw_CreateWindow(ImGuiViewport* viewport) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); ImGui_ImplGlfw_ViewportData* vd = IM_NEW(ImGui_ImplGlfw_ViewportData)(); viewport->PlatformUserData = vd; // GLFW 3.2 unfortunately always set focus on glfwCreateWindow() if GLFW_VISIBLE is set, regardless of GLFW_FOCUSED // With GLFW 3.3, the hint GLFW_FOCUS_ON_SHOW fixes this problem glfwWindowHint(GLFW_VISIBLE, false); glfwWindowHint(GLFW_FOCUSED, false); #if GLFW_HAS_FOCUS_ON_SHOW glfwWindowHint(GLFW_FOCUS_ON_SHOW, false); #endif glfwWindowHint(GLFW_DECORATED, (viewport->Flags & ImGuiViewportFlags_NoDecoration) ? false : true); #if GLFW_HAS_WINDOW_TOPMOST glfwWindowHint(GLFW_FLOATING, (viewport->Flags & ImGuiViewportFlags_TopMost) ? true : false); #endif GLFWwindow* share_window = (bd->ClientApi == GlfwClientApi_OpenGL) ? bd->Window : nullptr; vd->Window = glfwCreateWindow((int)viewport->Size.x, (int)viewport->Size.y, "No Title Yet", nullptr, share_window); vd->WindowOwned = true; viewport->PlatformHandle = (void*)vd->Window; #ifdef _WIN32 viewport->PlatformHandleRaw = glfwGetWin32Window(vd->Window); #elif defined(__APPLE__) viewport->PlatformHandleRaw = (void*)glfwGetCocoaWindow(vd->Window); #endif glfwSetWindowPos(vd->Window, (int)viewport->Pos.x, (int)viewport->Pos.y); // Install GLFW callbacks for secondary viewports glfwSetWindowFocusCallback(vd->Window, ImGui_ImplGlfw_WindowFocusCallback); glfwSetCursorEnterCallback(vd->Window, ImGui_ImplGlfw_CursorEnterCallback); glfwSetCursorPosCallback(vd->Window, ImGui_ImplGlfw_CursorPosCallback); glfwSetMouseButtonCallback(vd->Window, ImGui_ImplGlfw_MouseButtonCallback); glfwSetScrollCallback(vd->Window, ImGui_ImplGlfw_ScrollCallback); glfwSetKeyCallback(vd->Window, ImGui_ImplGlfw_KeyCallback); glfwSetCharCallback(vd->Window, ImGui_ImplGlfw_CharCallback); glfwSetWindowCloseCallback(vd->Window, ImGui_ImplGlfw_WindowCloseCallback); glfwSetWindowPosCallback(vd->Window, ImGui_ImplGlfw_WindowPosCallback); glfwSetWindowSizeCallback(vd->Window, ImGui_ImplGlfw_WindowSizeCallback); if (bd->ClientApi == GlfwClientApi_OpenGL) { ImGui_ImplAx_makeCurrent(vd->Window); glfwSwapInterval(0); } } static void ImGui_ImplGlfw_DestroyWindow(ImGuiViewport* viewport) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); if (ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData) { if (vd->WindowOwned) { #if !GLFW_HAS_MOUSE_PASSTHROUGH && GLFW_HAS_WINDOW_HOVERED && defined(_WIN32) HWND hwnd = (HWND)viewport->PlatformHandleRaw; ::RemovePropA(hwnd, "IMGUI_VIEWPORT"); #endif // Release any keys that were pressed in the window being destroyed and are still held down, // because we will not receive any release events after window is destroyed. for (int i = 0; i < IM_ARRAYSIZE(bd->KeyOwnerWindows); i++) if (bd->KeyOwnerWindows[i] == vd->Window) ImGui_ImplGlfw_KeyCallback(vd->Window, i, 0, GLFW_RELEASE, 0); // Later params are only used for main viewport, on which this function is never called. #if defined(AX_USE_GL) auto p = (OpenGLState*)glfwGetWindowUserPointer(vd->Window); if (p) delete p; #endif glfwDestroyWindow(vd->Window); } vd->Window = nullptr; IM_DELETE(vd); } viewport->PlatformUserData = viewport->PlatformHandle = nullptr; } static void ImGui_ImplGlfw_ShowWindow(ImGuiViewport* viewport) { ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData; #if defined(_WIN32) // GLFW hack: Hide icon from task bar HWND hwnd = (HWND)viewport->PlatformHandleRaw; if (viewport->Flags & ImGuiViewportFlags_NoTaskBarIcon) { LONG ex_style = ::GetWindowLong(hwnd, GWL_EXSTYLE); ex_style &= ~WS_EX_APPWINDOW; ex_style |= WS_EX_TOOLWINDOW; ::SetWindowLong(hwnd, GWL_EXSTYLE, ex_style); } // GLFW hack: install hook for WM_NCHITTEST message handler #if !GLFW_HAS_MOUSE_PASSTHROUGH && GLFW_HAS_WINDOW_HOVERED && defined(_WIN32) ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); ::SetPropA(hwnd, "IMGUI_VIEWPORT", viewport); IM_ASSERT(bd->GlfwWndProc == (WNDPROC)::GetWindowLongPtr(hwnd, GWLP_WNDPROC)); ::SetWindowLongPtr(hwnd, GWLP_WNDPROC, (LONG_PTR)ImGui_ImplGlfw_WndProc); #endif #if !GLFW_HAS_FOCUS_ON_SHOW // GLFW hack: GLFW 3.2 has a bug where glfwShowWindow() also activates/focus the window. // The fix was pushed to GLFW repository on 2018/01/09 and should be included in GLFW 3.3 via a GLFW_FOCUS_ON_SHOW window attribute. // See https://github.com/glfw/glfw/issues/1189 // FIXME-VIEWPORT: Implement same work-around for Linux/OSX in the meanwhile. if (viewport->Flags & ImGuiViewportFlags_NoFocusOnAppearing) { ::ShowWindow(hwnd, SW_SHOWNA); return; } #endif #endif glfwShowWindow(vd->Window); } static ImVec2 ImGui_ImplGlfw_GetWindowPos(ImGuiViewport* viewport) { ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData; int x = 0, y = 0; glfwGetWindowPos(vd->Window, &x, &y); return ImVec2((float)x, (float)y); } static void ImGui_ImplGlfw_SetWindowPos(ImGuiViewport* viewport, ImVec2 pos) { ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData; vd->IgnoreWindowPosEventFrame = ImGui::GetFrameCount(); glfwSetWindowPos(vd->Window, (int)pos.x, (int)pos.y); } static ImVec2 ImGui_ImplGlfw_GetWindowSize(ImGuiViewport* viewport) { ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData; int w = 0, h = 0; glfwGetWindowSize(vd->Window, &w, &h); return ImVec2((float)w, (float)h); } static void ImGui_ImplGlfw_SetWindowSize(ImGuiViewport* viewport, ImVec2 size) { ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData; #if __APPLE__ && !GLFW_HAS_OSX_WINDOW_POS_FIX // Native OS windows are positioned from the bottom-left corner on macOS, whereas on other platforms they are // positioned from the upper-left corner. GLFW makes an effort to convert macOS style coordinates, however it // doesn't handle it when changing size. We are manually moving the window in order for changes of size to be based // on the upper-left corner. int x, y, width, height; glfwGetWindowPos(vd->Window, &x, &y); glfwGetWindowSize(vd->Window, &width, &height); glfwSetWindowPos(vd->Window, x, y - height + size.y); #endif vd->IgnoreWindowSizeEventFrame = ImGui::GetFrameCount(); glfwSetWindowSize(vd->Window, (int)size.x, (int)size.y); } static void ImGui_ImplGlfw_SetWindowTitle(ImGuiViewport* viewport, const char* title) { ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData; glfwSetWindowTitle(vd->Window, title); } static void ImGui_ImplGlfw_SetWindowFocus(ImGuiViewport* viewport) { #if GLFW_HAS_FOCUS_WINDOW ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData; glfwFocusWindow(vd->Window); #else // FIXME: What are the effect of not having this function? At the moment imgui doesn't actually call SetWindowFocus - we set that up ahead, will answer that question later. (void)viewport; #endif } static bool ImGui_ImplGlfw_GetWindowFocus(ImGuiViewport* viewport) { ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData; return glfwGetWindowAttrib(vd->Window, GLFW_FOCUSED) != 0; } static bool ImGui_ImplGlfw_GetWindowMinimized(ImGuiViewport* viewport) { ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData; return glfwGetWindowAttrib(vd->Window, GLFW_ICONIFIED) != 0; } #if GLFW_HAS_WINDOW_ALPHA static void ImGui_ImplGlfw_SetWindowAlpha(ImGuiViewport* viewport, float alpha) { ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData; glfwSetWindowOpacity(vd->Window, alpha); } #endif static void ImGui_ImplGlfw_RenderWindow(ImGuiViewport* viewport, void*) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData; if (bd->ClientApi == GlfwClientApi_OpenGL) ImGui_ImplAx_makeCurrent(vd->Window); } static void ImGui_ImplGlfw_SwapBuffers(ImGuiViewport* viewport, void*) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData; if (bd->ClientApi == GlfwClientApi_OpenGL) { ImGui_ImplAx_makeCurrent(vd->Window); glfwSwapBuffers(vd->Window); } } //-------------------------------------------------------------------------------------------------------- // Vulkan support (the Vulkan renderer needs to call a platform-side support function to create the surface) //-------------------------------------------------------------------------------------------------------- // Avoid including so we can build without it #if GLFW_HAS_VULKAN #ifndef VULKAN_H_ #define VK_DEFINE_HANDLE(object) typedef struct object##_T* object; #if defined(__LP64__) || defined(_WIN64) || defined(__x86_64__) || defined(_M_X64) || defined(__ia64) || defined (_M_IA64) || defined(__aarch64__) || defined(__powerpc64__) #define VK_DEFINE_NON_DISPATCHABLE_HANDLE(object) typedef struct object##_T *object; #else #define VK_DEFINE_NON_DISPATCHABLE_HANDLE(object) typedef uint64_t object; #endif VK_DEFINE_HANDLE(VkInstance) VK_DEFINE_NON_DISPATCHABLE_HANDLE(VkSurfaceKHR) struct VkAllocationCallbacks; enum VkResult { VK_RESULT_MAX_ENUM = 0x7FFFFFFF }; #endif // VULKAN_H_ extern "C" { extern GLFWAPI VkResult glfwCreateWindowSurface(VkInstance instance, GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface); } static int ImGui_ImplGlfw_CreateVkSurface(ImGuiViewport* viewport, ImU64 vk_instance, const void* vk_allocator, ImU64* out_vk_surface) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData; IM_UNUSED(bd); IM_ASSERT(bd->ClientApi == GlfwClientApi_Vulkan); VkResult err = glfwCreateWindowSurface((VkInstance)vk_instance, vd->Window, (const VkAllocationCallbacks*)vk_allocator, (VkSurfaceKHR*)out_vk_surface); return (int)err; } #endif // GLFW_HAS_VULKAN static void ImGui_ImplGlfw_InitPlatformInterface() { // Register platform interface (will be coupled with a renderer interface) ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO(); platform_io.Platform_CreateWindow = ImGui_ImplGlfw_CreateWindow; platform_io.Platform_DestroyWindow = ImGui_ImplGlfw_DestroyWindow; platform_io.Platform_ShowWindow = ImGui_ImplGlfw_ShowWindow; platform_io.Platform_SetWindowPos = ImGui_ImplGlfw_SetWindowPos; platform_io.Platform_GetWindowPos = ImGui_ImplGlfw_GetWindowPos; platform_io.Platform_SetWindowSize = ImGui_ImplGlfw_SetWindowSize; platform_io.Platform_GetWindowSize = ImGui_ImplGlfw_GetWindowSize; platform_io.Platform_SetWindowFocus = ImGui_ImplGlfw_SetWindowFocus; platform_io.Platform_GetWindowFocus = ImGui_ImplGlfw_GetWindowFocus; platform_io.Platform_GetWindowMinimized = ImGui_ImplGlfw_GetWindowMinimized; platform_io.Platform_SetWindowTitle = ImGui_ImplGlfw_SetWindowTitle; platform_io.Platform_RenderWindow = ImGui_ImplGlfw_RenderWindow; platform_io.Platform_SwapBuffers = ImGui_ImplGlfw_SwapBuffers; #if GLFW_HAS_WINDOW_ALPHA platform_io.Platform_SetWindowAlpha = ImGui_ImplGlfw_SetWindowAlpha; #endif #if GLFW_HAS_VULKAN platform_io.Platform_CreateVkSurface = ImGui_ImplGlfw_CreateVkSurface; #endif // 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_ImplGlfw_ViewportData* vd = IM_NEW(ImGui_ImplGlfw_ViewportData)(); vd->Window = bd->Window; vd->WindowOwned = false; main_viewport->PlatformUserData = vd; main_viewport->PlatformHandle = (void*)bd->Window; } static void ImGui_ImplGlfw_ShutdownPlatformInterface() { ImGui::DestroyPlatformWindows(); } //----------------------------------------------------------------------------- #if defined(__clang__) #pragma clang diagnostic pop #endif ////////////////////////// axmol spec ///////////////////////// #define AX_PTR_CAST(v, pointer_type) reinterpret_cast(v) // fps macro #define AX_IMGUI_DEFAULT_DELTA (1 / 60.f) #define AX_IMGUI_MIN_DELTA (1 / 1000.f) #define AX_IMGUI_MAX_DELTA (1 / 30.f) // axmol spec bool ImGui_ImplGlfw_InitForAx(GLFWwindow* window, bool install_callbacks) { #if defined(AX_USE_GL) return ImGui_ImplGlfw_Init(window, install_callbacks, GlfwClientApi_OpenGL); #else return ImGui_ImplGlfw_Init(window, install_callbacks, GlfwClientApi_Metal); #endif } struct ImGui_ImplAx_Data { // axmol spec data ImGuiImplCocos2dxLoadFontFun LoadCustomFont = nullptr; void* LoadCustomFontUserData = nullptr; ProgramInfoData ProgramInfo{}; ProgramInfoData ProgramFontInfo{}; bool FontDeviceObjectsDirty = false; Texture2D* FontTexture = nullptr; Mat4 Projection; std::vector> CallbackCommands{}; std::vector> CustomCommands{}; Vector ProgramStates{}; SavedRenderStateData SavedRenderState{}; }; static bool ImGui_ImplAx_CreateFontsTexture(); static void ImGui_ImplAx_DestroyFontsTexture(); static void ImGui_ImplAx_DestroyDeviceObjects(); static bool ImGui_ImplAx_CreateDeviceObjects(); static void ImGui_ImplAx_RenderWindow(ImGuiViewport* viewport, void*); static void AddRendererCommand(const std::function& f); static bool ImGui_ImplAx_createShaderPrograms(); static void ImGui_ImplAx_CreateWindow(ImGuiViewport* viewport); static void ImGui_ImplAx_Renderer_RenderWindow(ImGuiViewport* viewport, void*); static void ImGui_ImplAx_RenderWindow(ImGuiViewport* viewport, void*) { if (ImGui::GetIO().ConfigFlags & ImGuiConfigFlags_ViewportsEnable) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData; if (bd->ClientApi == GlfwClientApi_OpenGL) { AddRendererCommand([=]() { ImGui_ImplAx_makeCurrent(vd->Window); }); } } } static void ImGui_ImplAx_SwapBuffers(ImGuiViewport* viewport, void*) { if (ImGui::GetIO().ConfigFlags & ImGuiConfigFlags_ViewportsEnable) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); if (bd->ClientApi == GlfwClientApi_OpenGL) { ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData; AddRendererCommand([=]() { ImGui_ImplAx_makeCurrent(vd->Window); glfwSwapBuffers(vd->Window); }); } } } static void ImGui_ImplAx_InitPlatformInterface() { // Register platform interface (will be coupled with a renderer interface) ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO(); platform_io.Platform_RenderWindow = ImGui_ImplAx_RenderWindow; platform_io.Platform_CreateWindow = ImGui_ImplAx_CreateWindow; platform_io.Platform_SwapBuffers = ImGui_ImplAx_SwapBuffers; platform_io.Renderer_RenderWindow = ImGui_ImplAx_Renderer_RenderWindow; } void ImGui_ImplAx_Init() { auto bd = ImGui_ImplGlfw_GetBackendData(); auto& io = ImGui::GetIO(); io.BackendRendererUserData = (void*)bd; io.BackendRendererName = "imgui_impl_axmol"; io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports; // We can create multi-viewports on the Renderer side (optional) // axmol spec: disable auto load and save io.IniFilename = nullptr; if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable) ImGui_ImplAx_InitPlatformInterface(); } void ImGui_ImplAx_Shutdown() { ImGui_ImplAx_DestroyDeviceObjects(); } IMGUI_IMPL_API void ImGui_ImplAx_NewFrame() { auto bd = ImGui_ImplGlfw_GetBackendData(); //bd->CallbackCommands.clear(); bd->CustomCommands.clear(); bd->ProgramStates.clear(); if (!bd->FontTexture) ImGui_ImplAx_CreateDeviceObjects(); else if (bd->FontDeviceObjectsDirty) { // recreate device objects, fonts also should be device objects ImGui_ImplAx_DestroyDeviceObjects(); ImGui_ImplAx_CreateDeviceObjects(); } } IMGUI_IMPL_API void ImGui_ImplAx_SetCustomFontLoader(ImGuiImplCocos2dxLoadFontFun fun, void* userdata) { auto bd = ImGui_ImplGlfw_GetBackendData(); bd->LoadCustomFont = fun; bd->LoadCustomFontUserData = userdata; } IMGUI_IMPL_API void* ImGui_ImplAx_GetFontsTexture() { auto bd = ImGui_ImplGlfw_GetBackendData(); return bd->FontTexture; } IMGUI_IMPL_API void ImGui_ImplAx_SetDeviceObjectsDirty() { auto bd = ImGui_ImplGlfw_GetBackendData(); bd->FontDeviceObjectsDirty = true; } IMGUI_IMPL_API void ImGui_ImplAx_SetViewResolution(float width, float height) { // Resize (expand) window auto* view = (GLViewImpl*)Director::getInstance()->getGLView(); view->setWindowed(width, height); } static void ImGui_ImplAx_CreateWindow(ImGuiViewport* viewport) { ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); ImGui_ImplGlfw_ViewportData* vd = IM_NEW(ImGui_ImplGlfw_ViewportData)(); viewport->PlatformUserData = vd; const bool multi_viewport_enabled = !!(ImGui::GetIO().ConfigFlags & ImGuiConfigFlags_ViewportsEnable); // axmol spec // GLFW 3.2 unfortunately always set focus on glfwCreateWindow() if GLFW_VISIBLE is set, regardless of GLFW_FOCUSED // With GLFW 3.3, the hint GLFW_FOCUS_ON_SHOW fixes this problem glfwWindowHint(GLFW_VISIBLE, false); glfwWindowHint(GLFW_FOCUSED, false); #if GLFW_HAS_FOCUS_ON_SHOW glfwWindowHint(GLFW_FOCUS_ON_SHOW, false); #endif glfwWindowHint(GLFW_DECORATED, (viewport->Flags & ImGuiViewportFlags_NoDecoration) ? false : true); #if GLFW_HAS_WINDOW_TOPMOST glfwWindowHint(GLFW_FLOATING, (viewport->Flags & ImGuiViewportFlags_TopMost) ? true : false); #endif GLFWwindow* share_window = (bd->ClientApi == GlfwClientApi_OpenGL) ? bd->Window : nullptr; vd->Window = glfwCreateWindow((int)viewport->Size.x, (int)viewport->Size.y, "No Title Yet", nullptr, share_window); vd->WindowOwned = true; viewport->PlatformHandle = (void*)vd->Window; #ifdef _WIN32 viewport->PlatformHandleRaw = glfwGetWin32Window(vd->Window); #elif defined(__APPLE__) viewport->PlatformHandleRaw = glfwGetCocoaWindow(vd->Window); #endif glfwSetWindowPos(vd->Window, (int)viewport->Pos.x, (int)viewport->Pos.y); // Install GLFW callbacks for secondary viewports glfwSetWindowFocusCallback(vd->Window, ImGui_ImplGlfw_WindowFocusCallback); glfwSetCursorEnterCallback(vd->Window, ImGui_ImplGlfw_CursorEnterCallback); glfwSetCursorPosCallback(vd->Window, ImGui_ImplGlfw_CursorPosCallback); glfwSetMouseButtonCallback(vd->Window, ImGui_ImplGlfw_MouseButtonCallback); glfwSetScrollCallback(vd->Window, ImGui_ImplGlfw_ScrollCallback); glfwSetKeyCallback(vd->Window, ImGui_ImplGlfw_KeyCallback); glfwSetCharCallback(vd->Window, ImGui_ImplGlfw_CharCallback); glfwSetWindowCloseCallback(vd->Window, ImGui_ImplGlfw_WindowCloseCallback); glfwSetWindowPosCallback(vd->Window, ImGui_ImplGlfw_WindowPosCallback); glfwSetWindowSizeCallback(vd->Window, ImGui_ImplGlfw_WindowSizeCallback); if (bd->ClientApi == GlfwClientApi_OpenGL) { const auto window = vd->Window; AddRendererCommand([=]() { ImGui_ImplAx_makeCurrent(vd->Window); glfwSwapInterval(0); }); } } static bool ImGui_ImplAx_CreateDeviceObjects() { auto bd = ImGui_ImplGlfw_GetBackendData(); if (bd->LoadCustomFont) bd->LoadCustomFont(bd->LoadCustomFontUserData); ImGui_ImplAx_createShaderPrograms(); ImGui_ImplAx_CreateFontsTexture(); bd->FontDeviceObjectsDirty = false; return true; } static void ImGui_ImplAx_DestroyDeviceObjects() { auto pm = ProgramManager::getInstance(); auto bd = ImGui_ImplGlfw_GetBackendData(); pm->unloadProgram(bd->ProgramInfo.program); pm->unloadProgram(bd->ProgramFontInfo.program); ImGui_ImplAx_DestroyFontsTexture(); } static bool ImGui_ImplAx_createShaderPrograms() { auto bd = ImGui_ImplGlfw_GetBackendData(); auto pm = ProgramManager::getInstance(); bd->ProgramInfo.program = pm->loadProgram("custom/imgui_sprite_vs"sv, ax::positionTextureColor_frag); bd->ProgramFontInfo.program = pm->loadProgram("custom/imgui_sprite_vs"sv, "custom/imgui_font_fs"); IM_ASSERT(bd->ProgramInfo.program); IM_ASSERT(bd->ProgramFontInfo.program); if (!bd->ProgramInfo.program || !bd->ProgramFontInfo.program) return false; for (auto& p : {&bd->ProgramInfo, &bd->ProgramFontInfo}) { p->texture = p->program->getUniformLocation(TEXTURE); p->projection = p->program->getUniformLocation(MVP_MATRIX); p->position = p->program->getAttributeLocation(POSITION); p->uv = p->program->getAttributeLocation(TEXCOORD); p->color = p->program->getAttributeLocation(COLOR); IM_ASSERT(bool(p->texture)); IM_ASSERT(bool(p->projection)); IM_ASSERT(p->position >= 0); IM_ASSERT(p->uv >= 0); IM_ASSERT(p->color >= 0); auto& layout = p->layout; layout.setAttrib("a_position", p->position, VertexFormat::FLOAT2, 0, false); layout.setAttrib("a_texCoord", p->uv, VertexFormat::FLOAT2, offsetof(ImDrawVert, uv), false); layout.setAttrib("a_color", p->color, VertexFormat::UBYTE4, offsetof(ImDrawVert, col), true); layout.setStride(sizeof(ImDrawVert)); } return true; } bool ImGui_ImplAx_CreateFontsTexture() { auto bd = ImGui_ImplGlfw_GetBackendData(); // Build texture atlas ImGuiIO& io = ImGui::GetIO(); unsigned char* pixels; int width, height; // Load as RGBA 32-bits (75% of the memory is wasted, but default font is so small) // because it is more likely to be compatible with user's existing shaders. // If your ImTextureId represent a higher-level concept than just a GL texture id, // consider calling GetTexDataAsAlpha8() instead to save on GPU memory. io.Fonts->GetTexDataAsAlpha8(&pixels, &width, &height); AX_SAFE_RELEASE(bd->FontTexture); bd->FontTexture = new Texture2D(); bd->FontTexture->setAntiAliasTexParameters(); bd->FontTexture->initWithData(pixels, width * height, AX_GLES_PROFILE != 200 ? backend ::PixelFormat::R8 : backend ::PixelFormat::A8, width, height); //#endif io.Fonts->TexID = (ImTextureID)bd->FontTexture; return true; } IMGUI_IMPL_API void ImGui_ImplAx_DestroyFontsTexture() { auto bd = ImGui_ImplGlfw_GetBackendData(); if (bd->FontTexture) { ImGui::GetIO().Fonts->TexID = nullptr; AX_SAFE_RELEASE_NULL(bd->FontTexture); } } static void AddRendererCommand(const std::function& f) { auto bd = ImGui_ImplGlfw_GetBackendData(); const auto renderer = Director::getInstance()->getRenderer(); auto cmd = renderer->nextCallbackCommand(); cmd->init(0.f); cmd->func = f; renderer->addCommand(cmd); //bd->CallbackCommands.push_back(cmd); } static void ImGui_ImplAx_SaveRenderState(ax::Renderer* renderer) { AddRendererCommand([renderer]() { auto bd = ImGui_ImplGlfw_GetBackendData(); bd->SavedRenderState.cull = renderer->getCullMode(); bd->SavedRenderState.vp = renderer->getViewport(); bd->SavedRenderState.scissorTest = renderer->getScissorTest(); bd->SavedRenderState.scissorRect = renderer->getScissorRect(); bd->SavedRenderState.depthTest = renderer->getDepthTest(); }); } static void ImGui_ImplAx_SetupRenderState(ax::Renderer* renderer, ImDrawData* draw_data, int fb_width, int fb_height) { AddRendererCommand([=]() { renderer->setCullMode(backend::CullMode::NONE); renderer->setDepthTest(false); renderer->setScissorTest(true); renderer->setViewPort(0, 0, fb_width, fb_height); }); const auto L = draw_data->DisplayPos.x; const auto R = draw_data->DisplayPos.x + draw_data->DisplaySize.x; const auto T = draw_data->DisplayPos.y; const auto B = draw_data->DisplayPos.y + draw_data->DisplaySize.y; auto bd = ImGui_ImplGlfw_GetBackendData(); Mat4::createOrthographicOffCenter(L, R, B, T, -1.f, 1.f, &bd->Projection); } static void ImGui_ImplAx_RestoreRenderState(ax::Renderer* renderer) { AddRendererCommand([renderer]() { auto bd = ImGui_ImplGlfw_GetBackendData(); renderer->setCullMode(bd->SavedRenderState.cull); auto& vp = bd->SavedRenderState.vp; renderer->setViewPort(vp.x, vp.y, vp.w, vp.h); renderer->setScissorTest(bd->SavedRenderState.scissorTest); auto& sc = bd->SavedRenderState.scissorRect; renderer->setScissorRect(sc.x, sc.y, sc.width, sc.height); renderer->setDepthTest(bd->SavedRenderState.depthTest); // apply raster state renderer->beginRenderPass(); renderer->endRenderPass(); }); } IMGUI_IMPL_API void ImGui_ImplAx_RenderDrawData(ImDrawData* draw_data) { // Avoid rendering when minimized, scale coordinates for retina displays // (screen coordinates != framebuffer coordinates) int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x); int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y); if (fb_width <= 0 || fb_height <= 0) return; const auto renderer = Director::getInstance()->getRenderer(); ImGui_ImplAx_SaveRenderState(renderer); ImGui_ImplAx_SetupRenderState(renderer, draw_data, fb_width, fb_height); // Will project scissor/clipping rectangles into framebuffer space ImVec2 clip_off = draw_data->DisplayPos; // (0,0) unless using multi-viewports ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are often (2,2) // Render command lists for (int n = 0; n < draw_data->CmdListsCount; n++) { const ImDrawList* cmd_list = draw_data->CmdLists[n]; size_t ibuffer_offset = 0; // Upload vertex/index buffers const auto vsize = cmd_list->VtxBuffer.Size * sizeof(ImDrawVert); IM_ASSERT(vsize > 0); auto vbuffer = backend::Device::getInstance()->newBuffer(vsize, BufferType::VERTEX, BufferUsage::STATIC); vbuffer->autorelease(); vbuffer->updateData(cmd_list->VtxBuffer.Data, vsize); const auto isize = cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx); IM_ASSERT(isize > 0); auto ibuffer = backend::Device::getInstance()->newBuffer(isize, BufferType::INDEX, BufferUsage::STATIC); ibuffer->autorelease(); ibuffer->updateData(cmd_list->IdxBuffer.Data, isize); for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++) { const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i]; if (pcmd->UserCallback != nullptr) { // User callback, registered via ImDrawList::AddCallback() // (ImDrawCallback_ResetRenderState is a special callback value used by the user // to request the renderer to reset render state.) if (pcmd->UserCallback == ImDrawCallback_ResetRenderState) ImGui_ImplAx_SetupRenderState(renderer, draw_data, fb_width, fb_height); else { AddRendererCommand([=]() { pcmd->UserCallback(cmd_list, pcmd); }); } } else { // Project scissor/clipping rectangles into framebuffer space ImVec4 clip_rect; clip_rect.x = (pcmd->ClipRect.x - clip_off.x) * clip_scale.x; clip_rect.y = (pcmd->ClipRect.y - clip_off.y) * clip_scale.y; clip_rect.z = (pcmd->ClipRect.z - clip_off.x) * clip_scale.x; clip_rect.w = (pcmd->ClipRect.w - clip_off.y) * clip_scale.y; if (clip_rect.x < fb_width && clip_rect.y < fb_height && clip_rect.z >= 0.0f && clip_rect.w >= 0.0f) { // Apply scissor/clipping rectangle AddRendererCommand([=]() { renderer->setScissorRect(clip_rect.x, fb_height - clip_rect.w, clip_rect.z - clip_rect.x, clip_rect.w - clip_rect.y); }); auto bd = ImGui_ImplGlfw_GetBackendData(); if (typeid(*((Ref*)pcmd->TextureId)) == typeid(Texture2D)) { auto tex = AX_PTR_CAST(pcmd->TextureId, Texture2D*); auto cmd = std::make_shared(); bd->CustomCommands.push_back(cmd); cmd->init(0.f, BlendFunc::ALPHA_NON_PREMULTIPLIED); const auto pinfo = tex == bd->FontTexture ? &bd->ProgramFontInfo : &bd->ProgramInfo; // create new ProgramState auto state = new ProgramState(pinfo->program); state->autorelease(); bd->ProgramStates.pushBack(state); auto& desc = cmd->getPipelineDescriptor(); desc.programState = state; // setup attributes for ImDrawVert desc.programState->setSharedVertexLayout(&pinfo->layout); desc.programState->setUniform(pinfo->projection, &bd->Projection, sizeof(Mat4)); desc.programState->setTexture(pinfo->texture, 0, tex->getBackendTexture()); // In order to composite our output buffer we need to preserve alpha desc.blendDescriptor.sourceAlphaBlendFactor = BlendFactor::ONE; // set vertex/index buffer cmd->setIndexBuffer(ibuffer, IMGUI_INDEX_FORMAT); cmd->setVertexBuffer(vbuffer); cmd->setDrawType(CustomCommand::DrawType::ELEMENT); cmd->setPrimitiveType(PrimitiveType::TRIANGLE); cmd->setIndexDrawInfo(ibuffer_offset, pcmd->ElemCount); renderer->addCommand(cmd.get()); } else { auto node = AX_PTR_CAST(pcmd->TextureId, Node*); const auto tr = node->getNodeToParentTransform(); node->setVisible(true); node->setNodeToParentTransform(tr); const auto& proj = Director::getInstance()->getMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_PROJECTION); node->visit(Director::getInstance()->getRenderer(), proj.getInversed() * bd->Projection, 0); node->setVisible(false); } } } ibuffer_offset += pcmd->ElemCount; } } ImGui_ImplAx_RestoreRenderState(renderer); } IMGUI_IMPL_API void ImGui_ImplAx_RenderPlatform() { if (ImGui::GetIO().ConfigFlags & ImGuiConfigFlags_ViewportsEnable) { GLFWwindow* prev_current_context = glfwGetCurrentContext(); ImGui::UpdatePlatformWindows(); ImGui::RenderPlatformWindowsDefault(); ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); if (bd->ClientApi == GlfwClientApi_OpenGL) { // restore context AddRendererCommand([=]() { ImGui_ImplAx_makeCurrent(prev_current_context); }); } } } //-------------------------------------------------------------------------------------------------------- // MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT // This is an _advanced_ and _optional_ feature, allowing the back-end 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.. //-------------------------------------------------------------------------------------------------------- static void ImGui_ImplAx_Renderer_RenderWindow(ImGuiViewport* viewport, void*) { if (!(viewport->Flags & ImGuiViewportFlags_NoRendererClear)) { const auto renderer = Director::getInstance()->getRenderer(); renderer->clear(ClearFlag::COLOR, {0, 0, 0, 1}, 1, 0, 0); } ImGui_ImplAx_RenderDrawData(viewport->DrawData); }