| //======================================================================== |
| // GLFW 3.1 - www.glfw.org |
| //------------------------------------------------------------------------ |
| // Copyright (c) 2002-2006 Marcus Geelnard |
| // Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org> |
| // |
| // This software is provided 'as-is', without any express or implied |
| // warranty. In no event will the authors be held liable for any damages |
| // arising from the use of this software. |
| // |
| // Permission is granted to anyone to use this software for any purpose, |
| // including commercial applications, and to alter it and redistribute it |
| // freely, subject to the following restrictions: |
| // |
| // 1. The origin of this software must not be misrepresented; you must not |
| // claim that you wrote the original software. If you use this software |
| // in a product, an acknowledgment in the product documentation would |
| // be appreciated but is not required. |
| // |
| // 2. Altered source versions must be plainly marked as such, and must not |
| // be misrepresented as being the original software. |
| // |
| // 3. This notice may not be removed or altered from any source |
| // distribution. |
| // |
| //======================================================================== |
| |
| #include "internal.h" |
| |
| #include <stdlib.h> |
| #if defined(_MSC_VER) |
| #include <malloc.h> |
| #endif |
| |
| // Internal key state used for sticky keys |
| #define _GLFW_STICK 3 |
| |
| |
| // Sets the cursor mode for the specified window |
| // |
| static void setCursorMode(_GLFWwindow* window, int newMode) |
| { |
| const int oldMode = window->cursorMode; |
| |
| if (newMode != GLFW_CURSOR_NORMAL && |
| newMode != GLFW_CURSOR_HIDDEN && |
| newMode != GLFW_CURSOR_DISABLED) |
| { |
| _glfwInputError(GLFW_INVALID_ENUM, "Invalid cursor mode"); |
| return; |
| } |
| |
| if (oldMode == newMode) |
| return; |
| |
| window->cursorMode = newMode; |
| |
| if (_glfw.cursorWindow == window) |
| { |
| if (oldMode == GLFW_CURSOR_DISABLED) |
| { |
| _glfwPlatformSetCursorPos(window, |
| _glfw.cursorPosX, |
| _glfw.cursorPosY); |
| } |
| else if (newMode == GLFW_CURSOR_DISABLED) |
| { |
| int width, height; |
| |
| _glfwPlatformGetCursorPos(window, |
| &_glfw.cursorPosX, |
| &_glfw.cursorPosY); |
| |
| window->cursorPosX = _glfw.cursorPosX; |
| window->cursorPosY = _glfw.cursorPosY; |
| |
| _glfwPlatformGetWindowSize(window, &width, &height); |
| _glfwPlatformSetCursorPos(window, width / 2, height / 2); |
| } |
| |
| _glfwPlatformApplyCursorMode(window); |
| } |
| } |
| |
| // Set sticky keys mode for the specified window |
| // |
| static void setStickyKeys(_GLFWwindow* window, int enabled) |
| { |
| if (window->stickyKeys == enabled) |
| return; |
| |
| if (!enabled) |
| { |
| int i; |
| |
| // Release all sticky keys |
| for (i = 0; i <= GLFW_KEY_LAST; i++) |
| { |
| if (window->keys[i] == _GLFW_STICK) |
| window->keys[i] = GLFW_RELEASE; |
| } |
| } |
| |
| window->stickyKeys = enabled; |
| } |
| |
| // Set sticky mouse buttons mode for the specified window |
| // |
| static void setStickyMouseButtons(_GLFWwindow* window, int enabled) |
| { |
| if (window->stickyMouseButtons == enabled) |
| return; |
| |
| if (!enabled) |
| { |
| int i; |
| |
| // Release all sticky mouse buttons |
| for (i = 0; i <= GLFW_MOUSE_BUTTON_LAST; i++) |
| { |
| if (window->mouseButtons[i] == _GLFW_STICK) |
| window->mouseButtons[i] = GLFW_RELEASE; |
| } |
| } |
| |
| window->stickyMouseButtons = enabled; |
| } |
| |
| |
| ////////////////////////////////////////////////////////////////////////// |
| ////// GLFW event API ////// |
| ////////////////////////////////////////////////////////////////////////// |
| |
| void _glfwInputKey(_GLFWwindow* window, int key, int scancode, int action, int mods) |
| { |
| if (key >= 0 && key <= GLFW_KEY_LAST) |
| { |
| GLboolean repeated = GL_FALSE; |
| |
| if (action == GLFW_RELEASE && window->keys[key] == GLFW_RELEASE) |
| return; |
| |
| if (action == GLFW_PRESS && window->keys[key] == GLFW_PRESS) |
| repeated = GL_TRUE; |
| |
| if (action == GLFW_RELEASE && window->stickyKeys) |
| window->keys[key] = _GLFW_STICK; |
| else |
| window->keys[key] = (char) action; |
| |
| if (repeated) |
| action = GLFW_REPEAT; |
| } |
| |
| if (window->callbacks.key) |
| window->callbacks.key((GLFWwindow*) window, key, scancode, action, mods); |
| } |
| |
| void _glfwInputChar(_GLFWwindow* window, unsigned int codepoint, int mods, int plain) |
| { |
| if (codepoint < 32 || (codepoint > 126 && codepoint < 160)) |
| return; |
| |
| if (window->callbacks.charmods) |
| window->callbacks.charmods((GLFWwindow*) window, codepoint, mods); |
| |
| if (plain) |
| { |
| if (window->callbacks.character) |
| window->callbacks.character((GLFWwindow*) window, codepoint); |
| } |
| } |
| |
| void _glfwInputScroll(_GLFWwindow* window, double xoffset, double yoffset) |
| { |
| if (window->callbacks.scroll) |
| window->callbacks.scroll((GLFWwindow*) window, xoffset, yoffset); |
| } |
| |
| void _glfwInputMouseClick(_GLFWwindow* window, int button, int action, int mods) |
| { |
| if (button < 0 || button > GLFW_MOUSE_BUTTON_LAST) |
| return; |
| |
| // Register mouse button action |
| if (action == GLFW_RELEASE && window->stickyMouseButtons) |
| window->mouseButtons[button] = _GLFW_STICK; |
| else |
| window->mouseButtons[button] = (char) action; |
| |
| if (window->callbacks.mouseButton) |
| window->callbacks.mouseButton((GLFWwindow*) window, button, action, mods); |
| } |
| |
| void _glfwInputCursorMotion(_GLFWwindow* window, double x, double y) |
| { |
| if (window->cursorMode == GLFW_CURSOR_DISABLED) |
| { |
| if (x == 0.0 && y == 0.0) |
| return; |
| |
| window->cursorPosX += x; |
| window->cursorPosY += y; |
| |
| x = window->cursorPosX; |
| y = window->cursorPosY; |
| } |
| |
| if (window->callbacks.cursorPos) |
| window->callbacks.cursorPos((GLFWwindow*) window, x, y); |
| } |
| |
| void _glfwInputCursorEnter(_GLFWwindow* window, int entered) |
| { |
| if (window->callbacks.cursorEnter) |
| window->callbacks.cursorEnter((GLFWwindow*) window, entered); |
| } |
| |
| void _glfwInputDrop(_GLFWwindow* window, int count, const char** paths) |
| { |
| if (window->callbacks.drop) |
| window->callbacks.drop((GLFWwindow*) window, count, paths); |
| } |
| |
| |
| ////////////////////////////////////////////////////////////////////////// |
| ////// GLFW public API ////// |
| ////////////////////////////////////////////////////////////////////////// |
| |
| GLFWAPI int glfwGetInputMode(GLFWwindow* handle, int mode) |
| { |
| _GLFWwindow* window = (_GLFWwindow*) handle; |
| |
| _GLFW_REQUIRE_INIT_OR_RETURN(0); |
| |
| switch (mode) |
| { |
| case GLFW_CURSOR: |
| return window->cursorMode; |
| case GLFW_STICKY_KEYS: |
| return window->stickyKeys; |
| case GLFW_STICKY_MOUSE_BUTTONS: |
| return window->stickyMouseButtons; |
| default: |
| _glfwInputError(GLFW_INVALID_ENUM, "Invalid input mode"); |
| return 0; |
| } |
| } |
| |
| GLFWAPI void glfwSetInputMode(GLFWwindow* handle, int mode, int value) |
| { |
| _GLFWwindow* window = (_GLFWwindow*) handle; |
| |
| _GLFW_REQUIRE_INIT(); |
| |
| switch (mode) |
| { |
| case GLFW_CURSOR: |
| setCursorMode(window, value); |
| break; |
| case GLFW_STICKY_KEYS: |
| setStickyKeys(window, value ? GL_TRUE : GL_FALSE); |
| break; |
| case GLFW_STICKY_MOUSE_BUTTONS: |
| setStickyMouseButtons(window, value ? GL_TRUE : GL_FALSE); |
| break; |
| default: |
| _glfwInputError(GLFW_INVALID_ENUM, "Invalid input mode"); |
| break; |
| } |
| } |
| |
| GLFWAPI int glfwGetKey(GLFWwindow* handle, int key) |
| { |
| _GLFWwindow* window = (_GLFWwindow*) handle; |
| |
| _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_RELEASE); |
| |
| if (key < 0 || key > GLFW_KEY_LAST) |
| { |
| _glfwInputError(GLFW_INVALID_ENUM, "Invalid key"); |
| return GLFW_RELEASE; |
| } |
| |
| if (window->keys[key] == _GLFW_STICK) |
| { |
| // Sticky mode: release key now |
| window->keys[key] = GLFW_RELEASE; |
| return GLFW_PRESS; |
| } |
| |
| return (int) window->keys[key]; |
| } |
| |
| GLFWAPI int glfwGetMouseButton(GLFWwindow* handle, int button) |
| { |
| _GLFWwindow* window = (_GLFWwindow*) handle; |
| |
| _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_RELEASE); |
| |
| if (button < 0 || button > GLFW_MOUSE_BUTTON_LAST) |
| { |
| _glfwInputError(GLFW_INVALID_ENUM, |
| "Invalid mouse button"); |
| return GLFW_RELEASE; |
| } |
| |
| if (window->mouseButtons[button] == _GLFW_STICK) |
| { |
| // Sticky mode: release mouse button now |
| window->mouseButtons[button] = GLFW_RELEASE; |
| return GLFW_PRESS; |
| } |
| |
| return (int) window->mouseButtons[button]; |
| } |
| |
| GLFWAPI void glfwGetCursorPos(GLFWwindow* handle, double* xpos, double* ypos) |
| { |
| _GLFWwindow* window = (_GLFWwindow*) handle; |
| |
| if (xpos) |
| *xpos = 0; |
| if (ypos) |
| *ypos = 0; |
| |
| _GLFW_REQUIRE_INIT(); |
| |
| if (window->cursorMode == GLFW_CURSOR_DISABLED) |
| { |
| if (xpos) |
| *xpos = window->cursorPosX; |
| if (ypos) |
| *ypos = window->cursorPosY; |
| } |
| else |
| _glfwPlatformGetCursorPos(window, xpos, ypos); |
| } |
| |
| GLFWAPI void glfwSetCursorPos(GLFWwindow* handle, double xpos, double ypos) |
| { |
| _GLFWwindow* window = (_GLFWwindow*) handle; |
| |
| _GLFW_REQUIRE_INIT(); |
| |
| if (_glfw.cursorWindow != window) |
| return; |
| |
| if (window->cursorMode == GLFW_CURSOR_DISABLED) |
| { |
| // Only update the accumulated position if the cursor is disabled |
| window->cursorPosX = xpos; |
| window->cursorPosY = ypos; |
| } |
| else |
| { |
| // Update system cursor position |
| _glfwPlatformSetCursorPos(window, xpos, ypos); |
| } |
| } |
| |
| GLFWAPI GLFWcursor* glfwCreateCursor(const GLFWimage* image, int xhot, int yhot) |
| { |
| _GLFWcursor* cursor; |
| |
| _GLFW_REQUIRE_INIT_OR_RETURN(NULL); |
| |
| cursor = calloc(1, sizeof(_GLFWcursor)); |
| cursor->next = _glfw.cursorListHead; |
| _glfw.cursorListHead = cursor; |
| |
| if (!_glfwPlatformCreateCursor(cursor, image, xhot, yhot)) |
| { |
| glfwDestroyCursor((GLFWcursor*) cursor); |
| return NULL; |
| } |
| |
| return (GLFWcursor*) cursor; |
| } |
| |
| GLFWAPI GLFWcursor* glfwCreateStandardCursor(int shape) |
| { |
| _GLFWcursor* cursor; |
| |
| _GLFW_REQUIRE_INIT_OR_RETURN(NULL); |
| |
| if (shape != GLFW_ARROW_CURSOR && |
| shape != GLFW_IBEAM_CURSOR && |
| shape != GLFW_CROSSHAIR_CURSOR && |
| shape != GLFW_HAND_CURSOR && |
| shape != GLFW_HRESIZE_CURSOR && |
| shape != GLFW_VRESIZE_CURSOR) |
| { |
| _glfwInputError(GLFW_INVALID_ENUM, "Invalid standard cursor"); |
| return NULL; |
| } |
| |
| cursor = calloc(1, sizeof(_GLFWcursor)); |
| cursor->next = _glfw.cursorListHead; |
| _glfw.cursorListHead = cursor; |
| |
| if (!_glfwPlatformCreateStandardCursor(cursor, shape)) |
| { |
| glfwDestroyCursor((GLFWcursor*) cursor); |
| return NULL; |
| } |
| |
| return (GLFWcursor*) cursor; |
| } |
| |
| GLFWAPI void glfwDestroyCursor(GLFWcursor* handle) |
| { |
| _GLFWcursor* cursor = (_GLFWcursor*) handle; |
| |
| _GLFW_REQUIRE_INIT(); |
| |
| if (cursor == NULL) |
| return; |
| |
| // Make sure the cursor is not being used by any window |
| { |
| _GLFWwindow* window; |
| |
| for (window = _glfw.windowListHead; window; window = window->next) |
| { |
| if (window->cursor == cursor) |
| glfwSetCursor((GLFWwindow*) window, NULL); |
| } |
| } |
| |
| _glfwPlatformDestroyCursor(cursor); |
| |
| // Unlink cursor from global linked list |
| { |
| _GLFWcursor** prev = &_glfw.cursorListHead; |
| |
| while (*prev != cursor) |
| prev = &((*prev)->next); |
| |
| *prev = cursor->next; |
| } |
| |
| free(cursor); |
| } |
| |
| GLFWAPI void glfwSetCursor(GLFWwindow* windowHandle, GLFWcursor* cursorHandle) |
| { |
| _GLFWwindow* window = (_GLFWwindow*) windowHandle; |
| _GLFWcursor* cursor = (_GLFWcursor*) cursorHandle; |
| |
| _GLFW_REQUIRE_INIT(); |
| |
| _glfwPlatformSetCursor(window, cursor); |
| |
| window->cursor = cursor; |
| } |
| |
| GLFWAPI GLFWkeyfun glfwSetKeyCallback(GLFWwindow* handle, GLFWkeyfun cbfun) |
| { |
| _GLFWwindow* window = (_GLFWwindow*) handle; |
| _GLFW_REQUIRE_INIT_OR_RETURN(NULL); |
| _GLFW_SWAP_POINTERS(window->callbacks.key, cbfun); |
| return cbfun; |
| } |
| |
| GLFWAPI GLFWcharfun glfwSetCharCallback(GLFWwindow* handle, GLFWcharfun cbfun) |
| { |
| _GLFWwindow* window = (_GLFWwindow*) handle; |
| _GLFW_REQUIRE_INIT_OR_RETURN(NULL); |
| _GLFW_SWAP_POINTERS(window->callbacks.character, cbfun); |
| return cbfun; |
| } |
| |
| GLFWAPI GLFWcharmodsfun glfwSetCharModsCallback(GLFWwindow* handle, GLFWcharmodsfun cbfun) |
| { |
| _GLFWwindow* window = (_GLFWwindow*) handle; |
| _GLFW_REQUIRE_INIT_OR_RETURN(NULL); |
| _GLFW_SWAP_POINTERS(window->callbacks.charmods, cbfun); |
| return cbfun; |
| } |
| |
| GLFWAPI GLFWmousebuttonfun glfwSetMouseButtonCallback(GLFWwindow* handle, |
| GLFWmousebuttonfun cbfun) |
| { |
| _GLFWwindow* window = (_GLFWwindow*) handle; |
| _GLFW_REQUIRE_INIT_OR_RETURN(NULL); |
| _GLFW_SWAP_POINTERS(window->callbacks.mouseButton, cbfun); |
| return cbfun; |
| } |
| |
| GLFWAPI GLFWcursorposfun glfwSetCursorPosCallback(GLFWwindow* handle, |
| GLFWcursorposfun cbfun) |
| { |
| _GLFWwindow* window = (_GLFWwindow*) handle; |
| _GLFW_REQUIRE_INIT_OR_RETURN(NULL); |
| _GLFW_SWAP_POINTERS(window->callbacks.cursorPos, cbfun); |
| return cbfun; |
| } |
| |
| GLFWAPI GLFWcursorenterfun glfwSetCursorEnterCallback(GLFWwindow* handle, |
| GLFWcursorenterfun cbfun) |
| { |
| _GLFWwindow* window = (_GLFWwindow*) handle; |
| _GLFW_REQUIRE_INIT_OR_RETURN(NULL); |
| _GLFW_SWAP_POINTERS(window->callbacks.cursorEnter, cbfun); |
| return cbfun; |
| } |
| |
| GLFWAPI GLFWscrollfun glfwSetScrollCallback(GLFWwindow* handle, |
| GLFWscrollfun cbfun) |
| { |
| _GLFWwindow* window = (_GLFWwindow*) handle; |
| _GLFW_REQUIRE_INIT_OR_RETURN(NULL); |
| _GLFW_SWAP_POINTERS(window->callbacks.scroll, cbfun); |
| return cbfun; |
| } |
| |
| GLFWAPI GLFWdropfun glfwSetDropCallback(GLFWwindow* handle, GLFWdropfun cbfun) |
| { |
| _GLFWwindow* window = (_GLFWwindow*) handle; |
| _GLFW_REQUIRE_INIT_OR_RETURN(NULL); |
| _GLFW_SWAP_POINTERS(window->callbacks.drop, cbfun); |
| return cbfun; |
| } |
| |
| GLFWAPI int glfwJoystickPresent(int joy) |
| { |
| _GLFW_REQUIRE_INIT_OR_RETURN(0); |
| |
| if (joy < 0 || joy > GLFW_JOYSTICK_LAST) |
| { |
| _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick"); |
| return 0; |
| } |
| |
| return _glfwPlatformJoystickPresent(joy); |
| } |
| |
| GLFWAPI const float* glfwGetJoystickAxes(int joy, int* count) |
| { |
| *count = 0; |
| |
| _GLFW_REQUIRE_INIT_OR_RETURN(NULL); |
| |
| if (joy < 0 || joy > GLFW_JOYSTICK_LAST) |
| { |
| _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick"); |
| return NULL; |
| } |
| |
| return _glfwPlatformGetJoystickAxes(joy, count); |
| } |
| |
| GLFWAPI const unsigned char* glfwGetJoystickButtons(int joy, int* count) |
| { |
| *count = 0; |
| |
| _GLFW_REQUIRE_INIT_OR_RETURN(NULL); |
| |
| if (joy < 0 || joy > GLFW_JOYSTICK_LAST) |
| { |
| _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick"); |
| return NULL; |
| } |
| |
| return _glfwPlatformGetJoystickButtons(joy, count); |
| } |
| |
| GLFWAPI const char* glfwGetJoystickName(int joy) |
| { |
| _GLFW_REQUIRE_INIT_OR_RETURN(NULL); |
| |
| if (joy < 0 || joy > GLFW_JOYSTICK_LAST) |
| { |
| _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick"); |
| return NULL; |
| } |
| |
| return _glfwPlatformGetJoystickName(joy); |
| } |
| |
| GLFWAPI void glfwSetClipboardString(GLFWwindow* handle, const char* string) |
| { |
| _GLFWwindow* window = (_GLFWwindow*) handle; |
| _GLFW_REQUIRE_INIT(); |
| _glfwPlatformSetClipboardString(window, string); |
| } |
| |
| GLFWAPI const char* glfwGetClipboardString(GLFWwindow* handle) |
| { |
| _GLFWwindow* window = (_GLFWwindow*) handle; |
| _GLFW_REQUIRE_INIT_OR_RETURN(NULL); |
| return _glfwPlatformGetClipboardString(window); |
| } |
| |
| GLFWAPI double glfwGetTime(void) |
| { |
| _GLFW_REQUIRE_INIT_OR_RETURN(0.0); |
| return _glfwPlatformGetTime(); |
| } |
| |
| GLFWAPI void glfwSetTime(double time) |
| { |
| _GLFW_REQUIRE_INIT(); |
| |
| if (time != time || time < 0.0 || time > 18446744073.0) |
| { |
| _glfwInputError(GLFW_INVALID_VALUE, "Invalid time"); |
| return; |
| } |
| |
| _glfwPlatformSetTime(time); |
| } |
| |