diff options
Diffstat (limited to '3rdparty/imgui/backends/imgui_impl_glfw.cpp')
| -rw-r--r-- | 3rdparty/imgui/backends/imgui_impl_glfw.cpp | 643 |
1 files changed, 0 insertions, 643 deletions
diff --git a/3rdparty/imgui/backends/imgui_impl_glfw.cpp b/3rdparty/imgui/backends/imgui_impl_glfw.cpp deleted file mode 100644 index 516aa3c..0000000 --- a/3rdparty/imgui/backends/imgui_impl_glfw.cpp +++ /dev/null @@ -1,643 +0,0 @@ -// dear imgui: Platform Backend for GLFW -// 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+) - -// Implemented features: -// [X] Platform: Clipboard support. -// [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+). - -// 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) -// 2022-02-07: Added ImGui_ImplGlfw_InstallCallbacks()/ImGui_ImplGlfw_RestoreCallbacks() helpers to facilitate user installing callbacks after iniitializing 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.h" -#include "imgui_impl_glfw.h" - -// 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 -#if __has_warning("-Wzero-as-null-pointer-constant") -#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant" -#endif -#endif - -// GLFW -#include <GLFW/glfw3.h> -#ifdef _WIN32 -#undef APIENTRY -#define GLFW_EXPOSE_NATIVE_WIN32 -#include <GLFW/glfw3native.h> // for glfwGetWin32Window -#endif -#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_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 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 -#define GLFW_HAS_GAMEPAD_API (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3300) // 3.3+ glfwGetGamepadState() new api -#define GLFW_HAS_GET_KEY_NAME (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3200) // 3.2+ glfwGetKeyName() - -// GLFW data -enum GlfwClientApi -{ - GlfwClientApi_Unknown, - GlfwClientApi_OpenGL, - GlfwClientApi_Vulkan -}; - -struct ImGui_ImplGlfw_Data -{ - GLFWwindow* Window; - GlfwClientApi ClientApi; - double Time; - GLFWwindow* MouseWindow; - GLFWcursor* MouseCursors[ImGuiMouseCursor_COUNT]; - ImVec2 LastValidMousePos; - bool InstalledCallbacks; - - // 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; - - ImGui_ImplGlfw_Data() { memset(this, 0, sizeof(*this)); } -}; - -// 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 : NULL; -} - -// 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; - } -} - -static void ImGui_ImplGlfw_UpdateKeyModifiers(int mods) -{ - ImGuiIO& io = ImGui::GetIO(); - io.AddKeyEvent(ImGuiKey_ModCtrl, (mods & GLFW_MOD_CONTROL) != 0); - io.AddKeyEvent(ImGuiKey_ModShift, (mods & GLFW_MOD_SHIFT) != 0); - io.AddKeyEvent(ImGuiKey_ModAlt, (mods & GLFW_MOD_ALT) != 0); - io.AddKeyEvent(ImGuiKey_ModSuper, (mods & GLFW_MOD_SUPER) != 0); -} - -void ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow* window, int button, int action, int mods) -{ - ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); - if (bd->PrevUserCallbackMousebutton != NULL && window == bd->Window) - bd->PrevUserCallbackMousebutton(window, button, action, mods); - - ImGui_ImplGlfw_UpdateKeyModifiers(mods); - - 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 != NULL && window == bd->Window) - bd->PrevUserCallbackScroll(window, xoffset, yoffset); - - ImGuiIO& io = ImGui::GetIO(); - io.AddMouseWheelEvent((float)xoffset, (float)yoffset); -} - -static int ImGui_ImplGlfw_TranslateUntranslatedKey(int key, int scancode) -{ -#if GLFW_HAS_GET_KEY_NAME && !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; - const char* key_name = glfwGetKeyName(key, scancode); - 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 (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 != NULL && window == bd->Window) - bd->PrevUserCallbackKey(window, keycode, scancode, action, mods); - - if (action != GLFW_PRESS && action != GLFW_RELEASE) - return; - - ImGui_ImplGlfw_UpdateKeyModifiers(mods); - - 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 != NULL && window == bd->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 != NULL && window == bd->Window) - bd->PrevUserCallbackCursorPos(window, x, y); - - ImGuiIO& io = ImGui::GetIO(); - 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 != NULL && window == bd->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 = NULL; - 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 != NULL && window == bd->Window) - bd->PrevUserCallbackChar(window, c); - - ImGuiIO& io = ImGui::GetIO(); - io.AddInputCharacter(c); -} - -void ImGui_ImplGlfw_MonitorCallback(GLFWmonitor*, int) -{ - // Unused in 'master' branch but 'docking' branch will use this, so we declare it ahead of it so if you have to install callbacks you can install this one too. -} - -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 = NULL; - bd->PrevUserCallbackCursorEnter = NULL; - bd->PrevUserCallbackCursorPos = NULL; - bd->PrevUserCallbackMousebutton = NULL; - bd->PrevUserCallbackScroll = NULL; - bd->PrevUserCallbackKey = NULL; - bd->PrevUserCallbackChar = NULL; - bd->PrevUserCallbackMonitor = NULL; -} - -static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, GlfwClientApi client_api) -{ - ImGuiIO& io = ImGui::GetIO(); - IM_ASSERT(io.BackendPlatformUserData == NULL && "Already initialized a platform backend!"); - - // 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) - - bd->Window = window; - bd->Time = 0.0; - - io.SetClipboardTextFn = ImGui_ImplGlfw_SetClipboardText; - io.GetClipboardTextFn = ImGui_ImplGlfw_GetClipboardText; - io.ClipboardUserData = bd->Window; - - // Set platform dependent data in viewport -#if defined(_WIN32) - ImGui::GetMainViewport()->PlatformHandleRaw = (void*)glfwGetWin32Window(bd->Window); -#endif - - // 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 NULL and our _UpdateMouseCursor() function will use the Arrow cursor instead.) - GLFWerrorfun prev_error_callback = glfwSetErrorCallback(NULL); - 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); - - // Chain GLFW callbacks: our callbacks will call the user's previously installed callbacks, if any. - if (install_callbacks) - ImGui_ImplGlfw_InstallCallbacks(window); - - 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 != NULL && "No platform backend to shutdown, or already shutdown?"); - ImGuiIO& io = ImGui::GetIO(); - - if (bd->InstalledCallbacks) - ImGui_ImplGlfw_RestoreCallbacks(bd->Window); - - for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++) - glfwDestroyCursor(bd->MouseCursors[cursor_n]); - - io.BackendPlatformName = NULL; - io.BackendPlatformUserData = NULL; - IM_DELETE(bd); -} - -static void ImGui_ImplGlfw_UpdateMouseData() -{ - ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); - ImGuiIO& io = ImGui::GetIO(); - -#ifdef __EMSCRIPTEN__ - const bool is_app_focused = true; -#else - const bool is_app_focused = glfwGetWindowAttrib(bd->Window, GLFW_FOCUSED) != 0; -#endif - if (is_app_focused) - { - // (Optional) Set OS mouse position from Dear ImGui if requested (rarely used, only when ImGuiConfigFlags_NavEnableSetMousePos is enabled by user) - if (io.WantSetMousePos) - glfwSetCursorPos(bd->Window, (double)io.MousePos.x, (double)io.MousePos.y); - - // (Optional) Fallback to provide mouse position when focused (ImGui_ImplGlfw_CursorPosCallback already provides this when hovered or captured) - if (is_app_focused && bd->MouseWindow == NULL) - { - double mouse_x, mouse_y; - glfwGetCursorPos(bd->Window, &mouse_x, &mouse_y); - io.AddMousePosEvent((float)mouse_x, (float)mouse_y); - bd->LastValidMousePos = ImVec2((float)mouse_x, (float)mouse_y); - } - } -} - -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(); - if (imgui_cursor == ImGuiMouseCursor_None || io.MouseDrawCursor) - { - // Hide OS mouse cursor if imgui is drawing it or if it wants no cursor - glfwSetInputMode(bd->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(bd->Window, bd->MouseCursors[imgui_cursor] ? bd->MouseCursors[imgui_cursor] : bd->MouseCursors[ImGuiMouseCursor_Arrow]); - glfwSetInputMode(bd->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) - return; - - io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad; -#if GLFW_HAS_GAMEPAD_API - 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_GamepadFaceDown, GLFW_GAMEPAD_BUTTON_A, 0); // Xbox A, PS Cross - MAP_BUTTON(ImGuiKey_GamepadFaceRight, GLFW_GAMEPAD_BUTTON_B, 1); // Xbox B, PS Circle - MAP_BUTTON(ImGuiKey_GamepadFaceLeft, GLFW_GAMEPAD_BUTTON_X, 2); // Xbox X, PS Square - MAP_BUTTON(ImGuiKey_GamepadFaceUp, GLFW_GAMEPAD_BUTTON_Y, 3); // Xbox Y, PS Triangle - 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 -} - -void ImGui_ImplGlfw_NewFrame() -{ - ImGuiIO& io = ImGui::GetIO(); - ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData(); - IM_ASSERT(bd != NULL && "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); - - // Setup time step - double current_time = glfwGetTime(); - 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(); -} - -#if defined(__clang__) -#pragma clang diagnostic pop -#endif |