mirror of
https://github.com/hajimehoshi/ebiten.git
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617 lines
17 KiB
C
617 lines
17 KiB
C
// SPDX-License-Identifier: Apache-2.0
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// SPDX-FileCopyrightText: 2002-2006 Marcus Geelnard
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// SPDX-FileCopyrightText: 2006-2019 Camilla Löwy <elmindreda@glfw.org>
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// SPDX-FileCopyrightText: 2023 The Ebitengine Authors
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//go:build darwin || freebsd || linux || netbsd || openbsd
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#include "internal.h"
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#include <assert.h>
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#include <float.h>
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#include <math.h>
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#include <stdlib.h>
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#include <string.h>
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// Internal key state used for sticky keys
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#define _GLFW_STICK 3
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//////////////////////////////////////////////////////////////////////////
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////// GLFW event API //////
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//////////////////////////////////////////////////////////////////////////
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// Notifies shared code of a physical key event
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//
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void _glfwInputKey(_GLFWwindow* window, int key, int scancode, int action, int mods)
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{
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if (key >= 0 && key <= GLFW_KEY_LAST)
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{
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GLFWbool repeated = GLFW_FALSE;
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if (action == GLFW_RELEASE && window->keys[key] == GLFW_RELEASE)
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return;
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if (action == GLFW_PRESS && window->keys[key] == GLFW_PRESS)
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repeated = GLFW_TRUE;
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if (action == GLFW_RELEASE && window->stickyKeys)
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window->keys[key] = _GLFW_STICK;
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else
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window->keys[key] = (char) action;
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if (repeated)
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action = GLFW_REPEAT;
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}
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if (!window->lockKeyMods)
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mods &= ~(GLFW_MOD_CAPS_LOCK | GLFW_MOD_NUM_LOCK);
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if (window->callbacks.key)
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window->callbacks.key((GLFWwindow*) window, key, scancode, action, mods);
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}
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// Notifies shared code of a Unicode codepoint input event
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// The 'plain' parameter determines whether to emit a regular character event
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//
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void _glfwInputChar(_GLFWwindow* window, uint32_t codepoint, int mods, GLFWbool plain)
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{
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if (codepoint < 32 || (codepoint > 126 && codepoint < 160))
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return;
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if (!window->lockKeyMods)
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mods &= ~(GLFW_MOD_CAPS_LOCK | GLFW_MOD_NUM_LOCK);
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if (window->callbacks.charmods)
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window->callbacks.charmods((GLFWwindow*) window, codepoint, mods);
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if (plain)
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{
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if (window->callbacks.character)
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window->callbacks.character((GLFWwindow*) window, codepoint);
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}
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}
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// Notifies shared code of a scroll event
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//
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void _glfwInputScroll(_GLFWwindow* window, double xoffset, double yoffset)
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{
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if (window->callbacks.scroll)
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window->callbacks.scroll((GLFWwindow*) window, xoffset, yoffset);
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}
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// Notifies shared code of a mouse button click event
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//
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void _glfwInputMouseClick(_GLFWwindow* window, int button, int action, int mods)
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{
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if (button < 0 || button > GLFW_MOUSE_BUTTON_LAST)
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return;
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if (!window->lockKeyMods)
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mods &= ~(GLFW_MOD_CAPS_LOCK | GLFW_MOD_NUM_LOCK);
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if (action == GLFW_RELEASE && window->stickyMouseButtons)
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window->mouseButtons[button] = _GLFW_STICK;
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else
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window->mouseButtons[button] = (char) action;
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if (window->callbacks.mouseButton)
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window->callbacks.mouseButton((GLFWwindow*) window, button, action, mods);
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}
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// Notifies shared code of a cursor motion event
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// The position is specified in content area relative screen coordinates
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//
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void _glfwInputCursorPos(_GLFWwindow* window, double xpos, double ypos)
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{
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if (window->virtualCursorPosX == xpos && window->virtualCursorPosY == ypos)
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return;
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window->virtualCursorPosX = xpos;
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window->virtualCursorPosY = ypos;
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if (window->callbacks.cursorPos)
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window->callbacks.cursorPos((GLFWwindow*) window, xpos, ypos);
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}
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// Notifies shared code of a cursor enter/leave event
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//
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void _glfwInputCursorEnter(_GLFWwindow* window, GLFWbool entered)
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{
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if (window->callbacks.cursorEnter)
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window->callbacks.cursorEnter((GLFWwindow*) window, entered);
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}
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// Notifies shared code of files or directories dropped on a window
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//
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void _glfwInputDrop(_GLFWwindow* window, int count, const char** paths)
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{
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if (window->callbacks.drop)
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window->callbacks.drop((GLFWwindow*) window, count, paths);
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}
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//////////////////////////////////////////////////////////////////////////
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////// GLFW internal API //////
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//////////////////////////////////////////////////////////////////////////
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// Center the cursor in the content area of the specified window
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//
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void _glfwCenterCursorInContentArea(_GLFWwindow* window)
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{
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int width, height;
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_glfwPlatformGetWindowSize(window, &width, &height);
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_glfwPlatformSetCursorPos(window, width / 2.0, height / 2.0);
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}
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//////////////////////////////////////////////////////////////////////////
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////// GLFW public API //////
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//////////////////////////////////////////////////////////////////////////
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GLFWAPI int glfwGetInputMode(GLFWwindow* handle, int mode)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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assert(window != NULL);
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_GLFW_REQUIRE_INIT_OR_RETURN(0);
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switch (mode)
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{
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case GLFW_CURSOR:
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return window->cursorMode;
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case GLFW_STICKY_KEYS:
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return window->stickyKeys;
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case GLFW_STICKY_MOUSE_BUTTONS:
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return window->stickyMouseButtons;
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case GLFW_LOCK_KEY_MODS:
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return window->lockKeyMods;
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case GLFW_RAW_MOUSE_MOTION:
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return window->rawMouseMotion;
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}
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_glfwInputError(GLFW_INVALID_ENUM, "Invalid input mode 0x%08X", mode);
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return 0;
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}
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GLFWAPI void glfwSetInputMode(GLFWwindow* handle, int mode, int value)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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assert(window != NULL);
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_GLFW_REQUIRE_INIT();
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if (mode == GLFW_CURSOR)
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{
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if (value != GLFW_CURSOR_NORMAL &&
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value != GLFW_CURSOR_HIDDEN &&
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value != GLFW_CURSOR_DISABLED)
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{
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_glfwInputError(GLFW_INVALID_ENUM,
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"Invalid cursor mode 0x%08X",
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value);
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return;
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}
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if (window->cursorMode == value)
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return;
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window->cursorMode = value;
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_glfwPlatformGetCursorPos(window,
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&window->virtualCursorPosX,
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&window->virtualCursorPosY);
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_glfwPlatformSetCursorMode(window, value);
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}
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else if (mode == GLFW_STICKY_KEYS)
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{
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value = value ? GLFW_TRUE : GLFW_FALSE;
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if (window->stickyKeys == value)
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return;
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if (!value)
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{
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int i;
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// Release all sticky keys
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for (i = 0; i <= GLFW_KEY_LAST; i++)
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{
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if (window->keys[i] == _GLFW_STICK)
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window->keys[i] = GLFW_RELEASE;
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}
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}
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window->stickyKeys = value;
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}
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else if (mode == GLFW_STICKY_MOUSE_BUTTONS)
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{
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value = value ? GLFW_TRUE : GLFW_FALSE;
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if (window->stickyMouseButtons == value)
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return;
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if (!value)
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{
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int i;
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// Release all sticky mouse buttons
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for (i = 0; i <= GLFW_MOUSE_BUTTON_LAST; i++)
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{
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if (window->mouseButtons[i] == _GLFW_STICK)
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window->mouseButtons[i] = GLFW_RELEASE;
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}
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}
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window->stickyMouseButtons = value;
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}
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else if (mode == GLFW_LOCK_KEY_MODS)
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{
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window->lockKeyMods = value ? GLFW_TRUE : GLFW_FALSE;
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}
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else if (mode == GLFW_RAW_MOUSE_MOTION)
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{
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if (!_glfwPlatformRawMouseMotionSupported())
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{
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_glfwInputError(GLFW_PLATFORM_ERROR,
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"Raw mouse motion is not supported on this system");
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return;
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}
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value = value ? GLFW_TRUE : GLFW_FALSE;
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if (window->rawMouseMotion == value)
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return;
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window->rawMouseMotion = value;
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_glfwPlatformSetRawMouseMotion(window, value);
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}
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else
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_glfwInputError(GLFW_INVALID_ENUM, "Invalid input mode 0x%08X", mode);
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}
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GLFWAPI int glfwRawMouseMotionSupported(void)
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{
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_GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
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return _glfwPlatformRawMouseMotionSupported();
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}
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GLFWAPI const char* glfwGetKeyName(int key, int scancode)
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{
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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if (key != GLFW_KEY_UNKNOWN)
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{
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if (key != GLFW_KEY_KP_EQUAL &&
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(key < GLFW_KEY_KP_0 || key > GLFW_KEY_KP_ADD) &&
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(key < GLFW_KEY_APOSTROPHE || key > GLFW_KEY_WORLD_2))
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{
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return NULL;
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}
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scancode = _glfwPlatformGetKeyScancode(key);
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}
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return _glfwPlatformGetScancodeName(scancode);
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}
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GLFWAPI int glfwGetKeyScancode(int key)
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{
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_GLFW_REQUIRE_INIT_OR_RETURN(-1);
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if (key < GLFW_KEY_SPACE || key > GLFW_KEY_LAST)
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{
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_glfwInputError(GLFW_INVALID_ENUM, "Invalid key %i", key);
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return GLFW_RELEASE;
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}
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return _glfwPlatformGetKeyScancode(key);
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}
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GLFWAPI int glfwGetKey(GLFWwindow* handle, int key)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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assert(window != NULL);
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_GLFW_REQUIRE_INIT_OR_RETURN(GLFW_RELEASE);
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if (key < GLFW_KEY_SPACE || key > GLFW_KEY_LAST)
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{
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_glfwInputError(GLFW_INVALID_ENUM, "Invalid key %i", key);
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return GLFW_RELEASE;
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}
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if (window->keys[key] == _GLFW_STICK)
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{
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// Sticky mode: release key now
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window->keys[key] = GLFW_RELEASE;
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return GLFW_PRESS;
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}
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return (int) window->keys[key];
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}
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GLFWAPI int glfwGetMouseButton(GLFWwindow* handle, int button)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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assert(window != NULL);
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_GLFW_REQUIRE_INIT_OR_RETURN(GLFW_RELEASE);
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if (button < GLFW_MOUSE_BUTTON_1 || button > GLFW_MOUSE_BUTTON_LAST)
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{
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_glfwInputError(GLFW_INVALID_ENUM, "Invalid mouse button %i", button);
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return GLFW_RELEASE;
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}
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if (window->mouseButtons[button] == _GLFW_STICK)
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{
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// Sticky mode: release mouse button now
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window->mouseButtons[button] = GLFW_RELEASE;
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return GLFW_PRESS;
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}
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return (int) window->mouseButtons[button];
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}
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GLFWAPI void glfwGetCursorPos(GLFWwindow* handle, double* xpos, double* ypos)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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assert(window != NULL);
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if (xpos)
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*xpos = 0;
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if (ypos)
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*ypos = 0;
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_GLFW_REQUIRE_INIT();
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if (window->cursorMode == GLFW_CURSOR_DISABLED)
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{
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if (xpos)
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*xpos = window->virtualCursorPosX;
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if (ypos)
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*ypos = window->virtualCursorPosY;
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}
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else
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_glfwPlatformGetCursorPos(window, xpos, ypos);
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}
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GLFWAPI void glfwSetCursorPos(GLFWwindow* handle, double xpos, double ypos)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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assert(window != NULL);
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_GLFW_REQUIRE_INIT();
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if (xpos != xpos || xpos < -DBL_MAX || xpos > DBL_MAX ||
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ypos != ypos || ypos < -DBL_MAX || ypos > DBL_MAX)
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{
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_glfwInputError(GLFW_INVALID_VALUE,
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"Invalid cursor position %f %f",
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xpos, ypos);
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return;
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}
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if (!_glfwPlatformWindowFocused(window))
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return;
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if (window->cursorMode == GLFW_CURSOR_DISABLED)
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{
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// Only update the accumulated position if the cursor is disabled
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window->virtualCursorPosX = xpos;
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window->virtualCursorPosY = ypos;
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}
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else
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{
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// Update system cursor position
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_glfwPlatformSetCursorPos(window, xpos, ypos);
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}
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}
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GLFWAPI GLFWcursor* glfwCreateCursor(const GLFWimage* image, int xhot, int yhot)
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{
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_GLFWcursor* cursor;
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assert(image != NULL);
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assert(image->pixels != NULL);
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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if (image->width <= 0 || image->height <= 0)
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{
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_glfwInputError(GLFW_INVALID_VALUE, "Invalid image dimensions for cursor");
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return NULL;
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}
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cursor = calloc(1, sizeof(_GLFWcursor));
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cursor->next = _glfw.cursorListHead;
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_glfw.cursorListHead = cursor;
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if (!_glfwPlatformCreateCursor(cursor, image, xhot, yhot))
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{
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glfwDestroyCursor((GLFWcursor*) cursor);
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return NULL;
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}
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return (GLFWcursor*) cursor;
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}
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GLFWAPI GLFWcursor* glfwCreateStandardCursor(int shape)
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{
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_GLFWcursor* cursor;
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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if (shape != GLFW_ARROW_CURSOR &&
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shape != GLFW_IBEAM_CURSOR &&
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shape != GLFW_CROSSHAIR_CURSOR &&
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shape != GLFW_HAND_CURSOR &&
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shape != GLFW_HRESIZE_CURSOR &&
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shape != GLFW_VRESIZE_CURSOR &&
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shape != GLFW_RESIZE_NWSE_CURSOR &&
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shape != GLFW_RESIZE_NESW_CURSOR &&
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shape != GLFW_RESIZE_ALL_CURSOR &&
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shape != GLFW_NOT_ALLOWED_CURSOR)
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{
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_glfwInputError(GLFW_INVALID_ENUM, "Invalid standard cursor 0x%08X", shape);
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return NULL;
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}
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cursor = calloc(1, sizeof(_GLFWcursor));
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cursor->next = _glfw.cursorListHead;
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_glfw.cursorListHead = cursor;
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if (!_glfwPlatformCreateStandardCursor(cursor, shape))
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{
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glfwDestroyCursor((GLFWcursor*) cursor);
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return NULL;
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}
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return (GLFWcursor*) cursor;
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}
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GLFWAPI void glfwDestroyCursor(GLFWcursor* handle)
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{
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_GLFWcursor* cursor = (_GLFWcursor*) handle;
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_GLFW_REQUIRE_INIT();
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if (cursor == NULL)
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return;
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// Make sure the cursor is not being used by any window
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{
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_GLFWwindow* window;
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for (window = _glfw.windowListHead; window; window = window->next)
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{
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if (window->cursor == cursor)
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glfwSetCursor((GLFWwindow*) window, NULL);
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}
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}
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_glfwPlatformDestroyCursor(cursor);
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// Unlink cursor from global linked list
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{
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_GLFWcursor** prev = &_glfw.cursorListHead;
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while (*prev != cursor)
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prev = &((*prev)->next);
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*prev = cursor->next;
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}
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free(cursor);
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}
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GLFWAPI void glfwSetCursor(GLFWwindow* windowHandle, GLFWcursor* cursorHandle)
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{
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_GLFWwindow* window = (_GLFWwindow*) windowHandle;
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_GLFWcursor* cursor = (_GLFWcursor*) cursorHandle;
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assert(window != NULL);
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_GLFW_REQUIRE_INIT();
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window->cursor = cursor;
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_glfwPlatformSetCursor(window, cursor);
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}
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GLFWAPI GLFWkeyfun glfwSetKeyCallback(GLFWwindow* handle, GLFWkeyfun cbfun)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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assert(window != NULL);
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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_GLFW_SWAP_POINTERS(window->callbacks.key, cbfun);
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return cbfun;
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}
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GLFWAPI GLFWcharfun glfwSetCharCallback(GLFWwindow* handle, GLFWcharfun cbfun)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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assert(window != NULL);
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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_GLFW_SWAP_POINTERS(window->callbacks.character, cbfun);
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return cbfun;
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}
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GLFWAPI GLFWcharmodsfun glfwSetCharModsCallback(GLFWwindow* handle, GLFWcharmodsfun cbfun)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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assert(window != NULL);
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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_GLFW_SWAP_POINTERS(window->callbacks.charmods, cbfun);
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return cbfun;
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|
}
|
|
|
|
GLFWAPI GLFWmousebuttonfun glfwSetMouseButtonCallback(GLFWwindow* handle,
|
|
GLFWmousebuttonfun cbfun)
|
|
{
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
assert(window != NULL);
|
|
|
|
_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;
|
|
assert(window != NULL);
|
|
|
|
_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;
|
|
assert(window != NULL);
|
|
|
|
_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;
|
|
assert(window != NULL);
|
|
|
|
_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;
|
|
assert(window != NULL);
|
|
|
|
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
|
|
_GLFW_SWAP_POINTERS(window->callbacks.drop, cbfun);
|
|
return cbfun;
|
|
}
|
|
|
|
GLFWAPI void glfwSetClipboardString(GLFWwindow* handle, const char* string)
|
|
{
|
|
assert(string != NULL);
|
|
|
|
_GLFW_REQUIRE_INIT();
|
|
_glfwPlatformSetClipboardString(string);
|
|
}
|
|
|
|
GLFWAPI const char* glfwGetClipboardString(GLFWwindow* handle)
|
|
{
|
|
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
|
|
return _glfwPlatformGetClipboardString();
|
|
}
|