597 lines
16 KiB
C
597 lines
16 KiB
C
//========================================================================
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// GLFW 3.1 - www.glfw.org
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//------------------------------------------------------------------------
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// Copyright (c) 2002-2006 Marcus Geelnard
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// Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org>
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would
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// be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such, and must not
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// be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source
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// distribution.
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//
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//========================================================================
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#include "internal.h"
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#include <stdlib.h>
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#if defined(_MSC_VER)
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#include <malloc.h>
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#endif
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// Internal key state used for sticky keys
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#define _GLFW_STICK 3
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// Sets the cursor mode for the specified window
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//
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static void setCursorMode(_GLFWwindow* window, int newMode)
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{
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const int oldMode = window->cursorMode;
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if (newMode != GLFW_CURSOR_NORMAL &&
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newMode != GLFW_CURSOR_HIDDEN &&
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newMode != GLFW_CURSOR_DISABLED)
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{
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_glfwInputError(GLFW_INVALID_ENUM, NULL);
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return;
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}
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if (oldMode == newMode)
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return;
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window->cursorMode = newMode;
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if (_glfw.focusedWindow == window)
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{
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if (oldMode == GLFW_CURSOR_DISABLED)
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{
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_glfwPlatformSetCursorPos(window,
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_glfw.cursorPosX,
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_glfw.cursorPosY);
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}
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else if (newMode == GLFW_CURSOR_DISABLED)
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{
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int width, height;
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_glfwPlatformGetCursorPos(window,
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&_glfw.cursorPosX,
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&_glfw.cursorPosY);
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window->cursorPosX = _glfw.cursorPosX;
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window->cursorPosY = _glfw.cursorPosY;
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_glfwPlatformGetWindowSize(window, &width, &height);
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_glfwPlatformSetCursorPos(window, width / 2, height / 2);
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}
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_glfwPlatformApplyCursorMode(window);
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}
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}
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// Set sticky keys mode for the specified window
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//
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static void setStickyKeys(_GLFWwindow* window, int enabled)
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{
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if (window->stickyKeys == enabled)
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return;
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if (!enabled)
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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 = enabled;
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}
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// Set sticky mouse buttons mode for the specified window
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//
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static void setStickyMouseButtons(_GLFWwindow* window, int enabled)
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{
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if (window->stickyMouseButtons == enabled)
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return;
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if (!enabled)
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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 = enabled;
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}
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//////////////////////////////////////////////////////////////////////////
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////// GLFW event API //////
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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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GLboolean repeated = GL_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 = GL_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->callbacks.key)
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window->callbacks.key((GLFWwindow*) window, key, scancode, action, mods);
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}
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void _glfwInputChar(_GLFWwindow* window, unsigned int codepoint, int mods, int 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->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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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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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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// Register mouse button action
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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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void _glfwInputCursorMotion(_GLFWwindow* window, double x, double y)
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{
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if (window->cursorMode == GLFW_CURSOR_DISABLED)
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{
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if (x == 0.0 && y == 0.0)
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return;
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window->cursorPosX += x;
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window->cursorPosY += y;
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x = window->cursorPosX;
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y = window->cursorPosY;
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}
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if (window->callbacks.cursorPos)
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window->callbacks.cursorPos((GLFWwindow*) window, x, y);
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}
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void _glfwInputCursorEnter(_GLFWwindow* window, int 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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void _glfwInputDrop(_GLFWwindow* window, int count, const char** names)
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{
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if (window->callbacks.drop)
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window->callbacks.drop((GLFWwindow*) window, count, names);
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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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_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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default:
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_glfwInputError(GLFW_INVALID_ENUM, NULL);
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return 0;
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}
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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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_GLFW_REQUIRE_INIT();
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switch (mode)
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{
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case GLFW_CURSOR:
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setCursorMode(window, value);
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break;
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case GLFW_STICKY_KEYS:
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setStickyKeys(window, value ? GL_TRUE : GL_FALSE);
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break;
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case GLFW_STICKY_MOUSE_BUTTONS:
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setStickyMouseButtons(window, value ? GL_TRUE : GL_FALSE);
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break;
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default:
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_glfwInputError(GLFW_INVALID_ENUM, NULL);
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break;
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}
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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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_GLFW_REQUIRE_INIT_OR_RETURN(GLFW_RELEASE);
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if (key < 0 || key > GLFW_KEY_LAST)
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{
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_glfwInputError(GLFW_INVALID_ENUM, "The specified key is invalid");
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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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_GLFW_REQUIRE_INIT_OR_RETURN(GLFW_RELEASE);
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if (button < 0 || button > GLFW_MOUSE_BUTTON_LAST)
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{
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_glfwInputError(GLFW_INVALID_ENUM,
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"The specified mouse button is invalid");
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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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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->cursorPosX;
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if (ypos)
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*ypos = window->cursorPosY;
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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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_GLFW_REQUIRE_INIT();
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if (_glfw.focusedWindow != 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->cursorPosX = xpos;
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window->cursorPosY = 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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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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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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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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_GLFW_REQUIRE_INIT();
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_glfwPlatformSetCursor(window, cursor);
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window->cursor = 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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_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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_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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_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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}
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GLFWAPI GLFWmousebuttonfun glfwSetMouseButtonCallback(GLFWwindow* handle,
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GLFWmousebuttonfun cbfun)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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_GLFW_SWAP_POINTERS(window->callbacks.mouseButton, cbfun);
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return cbfun;
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}
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GLFWAPI GLFWcursorposfun glfwSetCursorPosCallback(GLFWwindow* handle,
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GLFWcursorposfun cbfun)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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_GLFW_SWAP_POINTERS(window->callbacks.cursorPos, cbfun);
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return cbfun;
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}
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GLFWAPI GLFWcursorenterfun glfwSetCursorEnterCallback(GLFWwindow* handle,
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GLFWcursorenterfun cbfun)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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_GLFW_SWAP_POINTERS(window->callbacks.cursorEnter, cbfun);
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return cbfun;
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}
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GLFWAPI GLFWscrollfun glfwSetScrollCallback(GLFWwindow* handle,
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GLFWscrollfun cbfun)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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_GLFW_SWAP_POINTERS(window->callbacks.scroll, cbfun);
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return cbfun;
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}
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GLFWAPI GLFWdropfun glfwSetDropCallback(GLFWwindow* handle, GLFWdropfun cbfun)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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_GLFW_SWAP_POINTERS(window->callbacks.drop, cbfun);
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return cbfun;
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}
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GLFWAPI int glfwJoystickPresent(int joy)
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{
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_GLFW_REQUIRE_INIT_OR_RETURN(0);
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if (joy < 0 || joy > GLFW_JOYSTICK_LAST)
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{
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_glfwInputError(GLFW_INVALID_ENUM, NULL);
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return 0;
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}
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return _glfwPlatformJoystickPresent(joy);
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}
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GLFWAPI const float* glfwGetJoystickAxes(int joy, int* count)
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{
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*count = 0;
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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if (joy < 0 || joy > GLFW_JOYSTICK_LAST)
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{
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_glfwInputError(GLFW_INVALID_ENUM, NULL);
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return NULL;
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}
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return _glfwPlatformGetJoystickAxes(joy, count);
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}
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GLFWAPI const unsigned char* glfwGetJoystickButtons(int joy, int* count)
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{
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*count = 0;
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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if (joy < 0 || joy > GLFW_JOYSTICK_LAST)
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{
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_glfwInputError(GLFW_INVALID_ENUM, NULL);
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return NULL;
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}
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return _glfwPlatformGetJoystickButtons(joy, count);
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}
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GLFWAPI const char* glfwGetJoystickName(int joy)
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{
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
|
|
|
|
if (joy < 0 || joy > GLFW_JOYSTICK_LAST)
|
|
{
|
|
_glfwInputError(GLFW_INVALID_ENUM, NULL);
|
|
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();
|
|
_glfwPlatformSetTime(time);
|
|
}
|
|
|