/* ScummVM - Graphic Adventure Engine * * ScummVM is the legal property of its developers, whose names * are too numerous to list here. Please refer to the COPYRIGHT * file distributed with this source distribution. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * */ #include "common/scummsys.h" #if defined(SDL_BACKEND) #include "backends/events/sdl/sdl-events.h" #include "backends/platform/sdl/sdl.h" #include "backends/graphics/graphics.h" #include "common/config-manager.h" #include "common/textconsole.h" #include "common/fs.h" // FIXME move joystick defines out and replace with confile file options // we should really allow users to map any key to a joystick button // #define JOY_INVERT_Y #define JOY_XAXIS 0 #define JOY_YAXIS 1 // buttons #define JOY_BUT_LMOUSE 0 #define JOY_BUT_RMOUSE 2 #define JOY_BUT_ESCAPE 3 #define JOY_BUT_PERIOD 1 #define JOY_BUT_SPACE 4 #define JOY_BUT_F5 5 #ifdef ENABLE_VKEYBD #define JOY_BUT_VKEYBOARD 7 #endif #if SDL_VERSION_ATLEAST(2, 0, 0) #define GAMECONTROLLERDB_FILE "gamecontrollerdb.txt" static uint32 convUTF8ToUTF32(const char *src) { uint32 utf32 = 0; char *dst = SDL_iconv_string( #if SDL_BYTEORDER == SDL_BIG_ENDIAN "UTF-32BE", #else "UTF-32LE", #endif "UTF-8", src, SDL_strlen(src) + 1); if (dst) { utf32 = *((uint32 *)dst); SDL_free(dst); } return utf32; } void SdlEventSource::loadGameControllerMappingFile() { bool loaded = false; if (ConfMan.hasKey("controller_map_db")) { Common::FSNode file = Common::FSNode(ConfMan.get("controller_map_db")); if (file.exists()) { if (SDL_GameControllerAddMappingsFromFile(file.getPath().c_str()) < 0) error("File %s not valid: %s", file.getPath().c_str(), SDL_GetError()); else { loaded = true; debug("Game controller DB file loaded: %s", file.getPath().c_str()); } } else warning("Game controller DB file not found: %s", file.getPath().c_str()); } if (!loaded && ConfMan.hasKey("extrapath")) { Common::FSNode dir = Common::FSNode(ConfMan.get("extrapath")); Common::FSNode file = dir.getChild(GAMECONTROLLERDB_FILE); if (file.exists()) { if (SDL_GameControllerAddMappingsFromFile(file.getPath().c_str()) < 0) error("File %s not valid: %s", file.getPath().c_str(), SDL_GetError()); else debug("Game controller DB file loaded: %s", file.getPath().c_str()); } } } #endif SdlEventSource::SdlEventSource() : EventSource(), _scrollLock(false), _joystick(0), _lastScreenID(0), _graphicsManager(0), _queuedFakeMouseMove(false) #if SDL_VERSION_ATLEAST(2, 0, 0) , _queuedFakeKeyUp(false), _fakeKeyUp(), _controller(nullptr) #endif { // Reset mouse state memset(&_km, 0, sizeof(_km)); int joystick_num = ConfMan.getInt("joystick_num"); if (joystick_num >= 0) { // Initialize SDL joystick subsystem if (SDL_InitSubSystem(SDL_INIT_JOYSTICK) == -1) { error("Could not initialize SDL: %s", SDL_GetError()); } #if SDL_VERSION_ATLEAST(2, 0, 0) if (SDL_InitSubSystem(SDL_INIT_GAMECONTROLLER) == -1) { error("Could not initialize SDL: %s", SDL_GetError()); } loadGameControllerMappingFile(); #endif openJoystick(joystick_num); } } SdlEventSource::~SdlEventSource() { closeJoystick(); } int SdlEventSource::mapKey(SDLKey sdlKey, SDLMod mod, Uint16 unicode) { Common::KeyCode key = SDLToOSystemKeycode(sdlKey); // Keep unicode in case it's regular ASCII text or in case we didn't get a valid keycode // // We need to use unicode in those cases, simply because SDL1.x passes us non-layout-adjusted keycodes. // So unicode is the only way to get layout-adjusted keys. if (unicode < 0x20) { // don't use unicode, in case it's control characters unicode = 0; } else { // Use unicode, in case keycode is invalid. // Umlauts and others will set KEYCODE_INVALID on SDL2, so in such a case always keep unicode. if (key != Common::KEYCODE_INVALID) { // keycode is valid, check further also depending on modifiers if (mod & (KMOD_CTRL | KMOD_ALT)) { // Ctrl and/or Alt is active // // We need to restrict unicode to only up to 0x7E, because on macOS the option/alt key will switch to // an alternate keyboard, which will cause us to receive Unicode characters for some keys, which are outside // of the ASCII range (e.g. alt-x will get us U+2248). We need to return 'x' for alt-x, so using unicode // in that case would break alt-shortcuts. if (unicode > 0x7E) unicode = 0; // do not allow any characters above 0x7E } else { // We must not restrict as much as when Ctrl/Alt-modifiers are active, otherwise // we wouldn't let umlauts through for SDL1. For SDL1 umlauts may set for example KEYCODE_QUOTE, KEYCODE_MINUS, etc. if (unicode > 0xFF) unicode = 0; // do not allow any characters above 0xFF } } } // Attention: // When using SDL1.x, we will get scancodes via sdlKey, that are raw scancodes, so NOT adjusted to keyboard layout/ // mapping. So for example for certain locales, we will get KEYCODE_y, when 'z' is pressed and so on. // When using SDL2.x however, we will get scancodes based on the keyboard layout. if (key >= Common::KEYCODE_F1 && key <= Common::KEYCODE_F9) { return key - Common::KEYCODE_F1 + Common::ASCII_F1; } else if (key >= Common::KEYCODE_KP0 && key <= Common::KEYCODE_KP9) { // WORKAROUND: Disable this change for AmigaOS4 as it is breaking numpad usage ("fighting") on that platform. // This fixes bug #10558. // The actual issue here is that the SCUMM engine uses ASCII codes instead of keycodes for input. // See also the relevant FIXME in SCUMM's input.cpp. #ifndef __amigaos4__ if ((mod & KMOD_NUM) == 0) return 0; // In case Num-Lock is NOT enabled, return 0 for ascii, so that directional keys on numpad work #endif return key - Common::KEYCODE_KP0 + '0'; } else if (key >= Common::KEYCODE_UP && key <= Common::KEYCODE_PAGEDOWN) { return key; } else if (unicode) { // Return unicode in case it's still set and wasn't filtered. return unicode; } else if (key >= 'a' && key <= 'z' && (mod & KMOD_SHIFT)) { return key & ~0x20; } else if (key >= Common::KEYCODE_NUMLOCK && key <= Common::KEYCODE_EURO) { return 0; } else { return key; } } bool SdlEventSource::processMouseEvent(Common::Event &event, int x, int y) { event.mouse.x = x; event.mouse.y = y; if (_graphicsManager) { return _graphicsManager->notifyMousePosition(event.mouse); } return true; } void SdlEventSource::updateKbdMouse() { uint32 curTime = g_system->getMillis(true); if (curTime < _km.last_time + _km.delay_time) { return; } _km.last_time = curTime; if (_km.x_down_count == 1) { _km.x_down_time = curTime; _km.x_down_count = 2; } if (_km.y_down_count == 1) { _km.y_down_time = curTime; _km.y_down_count = 2; } if (_km.x_vel || _km.y_vel) { if (_km.x_down_count) { if (curTime > _km.x_down_time + 300) { if (_km.x_vel > 0) _km.x_vel += MULTIPLIER; else _km.x_vel -= MULTIPLIER; } else if (curTime > _km.x_down_time + 200) { if (_km.x_vel > 0) _km.x_vel = 5 * MULTIPLIER; else _km.x_vel = -5 * MULTIPLIER; } } if (_km.y_down_count) { if (curTime > _km.y_down_time + 300) { if (_km.y_vel > 0) _km.y_vel += MULTIPLIER; else _km.y_vel -= MULTIPLIER; } else if (curTime > _km.y_down_time + 200) { if (_km.y_vel > 0) _km.y_vel = 5 * MULTIPLIER; else _km.y_vel = -5 * MULTIPLIER; } } int16 speedFactor = computeJoystickMouseSpeedFactor(); // - The modifier key makes the mouse movement slower // - The extra factor "delay/speedFactor" ensures velocities // are independent of the kbdMouse update rate // - all velocities were originally chosen // at a delay of 25, so that is the reference used here // - note: operator order is important to avoid overflow if (_km.modifier) { _km.x += ((_km.x_vel / 10) * ((int16)_km.delay_time)) / speedFactor; _km.y += ((_km.y_vel / 10) * ((int16)_km.delay_time)) / speedFactor; } else { _km.x += (_km.x_vel * ((int16)_km.delay_time)) / speedFactor; _km.y += (_km.y_vel * ((int16)_km.delay_time)) / speedFactor; } if (_km.x < 0) { _km.x = 0; _km.x_vel = -1 * MULTIPLIER; _km.x_down_count = 1; } else if (_km.x > _km.x_max * MULTIPLIER) { _km.x = _km.x_max * MULTIPLIER; _km.x_vel = 1 * MULTIPLIER; _km.x_down_count = 1; } if (_km.y < 0) { _km.y = 0; _km.y_vel = -1 * MULTIPLIER; _km.y_down_count = 1; } else if (_km.y > _km.y_max * MULTIPLIER) { _km.y = _km.y_max * MULTIPLIER; _km.y_vel = 1 * MULTIPLIER; _km.y_down_count = 1; } } } bool SdlEventSource::handleKbdMouse(Common::Event &event) { int16 oldKmX = _km.x; int16 oldKmY = _km.y; updateKbdMouse(); if (_km.x != oldKmX || _km.y != oldKmY) { if (_graphicsManager) { _graphicsManager->getWindow()->warpMouseInWindow((Uint16)(_km.x / MULTIPLIER), (Uint16)(_km.y / MULTIPLIER)); } event.type = Common::EVENT_MOUSEMOVE; return processMouseEvent(event, _km.x / MULTIPLIER, _km.y / MULTIPLIER); } return false; } int16 SdlEventSource::computeJoystickMouseSpeedFactor() const { int16 speedFactor; switch (ConfMan.getInt("kbdmouse_speed")) { // 0.25 keyboard pointer speed case 0: speedFactor = 100; break; // 0.5 speed case 1: speedFactor = 50; break; // 0.75 speed case 2: speedFactor = 33; break; // 1.0 speed case 3: speedFactor = 25; break; // 1.25 speed case 4: speedFactor = 20; break; // 1.5 speed case 5: speedFactor = 17; break; // 1.75 speed case 6: speedFactor = 14; break; // 2.0 speed case 7: speedFactor = 12; break; default: speedFactor = 25; } // Scale the mouse cursor speed with the display size so moving across // the screen takes a reasonable amount of time at higher resolutions. return speedFactor * 480 / _km.y_max; } void SdlEventSource::SDLModToOSystemKeyFlags(SDLMod mod, Common::Event &event) { event.kbd.flags = 0; if (mod & KMOD_SHIFT) event.kbd.flags |= Common::KBD_SHIFT; if (mod & KMOD_ALT) event.kbd.flags |= Common::KBD_ALT; if (mod & KMOD_CTRL) event.kbd.flags |= Common::KBD_CTRL; if (mod & KMOD_META) event.kbd.flags |= Common::KBD_META; // Sticky flags if (mod & KMOD_NUM) event.kbd.flags |= Common::KBD_NUM; if (mod & KMOD_CAPS) event.kbd.flags |= Common::KBD_CAPS; } Common::KeyCode SdlEventSource::SDLToOSystemKeycode(const SDLKey key) { switch (key) { case SDLK_BACKSPACE: return Common::KEYCODE_BACKSPACE; case SDLK_TAB: return Common::KEYCODE_TAB; case SDLK_CLEAR: return Common::KEYCODE_CLEAR; case SDLK_RETURN: return Common::KEYCODE_RETURN; case SDLK_PAUSE: return Common::KEYCODE_PAUSE; case SDLK_ESCAPE: return Common::KEYCODE_ESCAPE; case SDLK_SPACE: return Common::KEYCODE_SPACE; case SDLK_EXCLAIM: return Common::KEYCODE_EXCLAIM; case SDLK_QUOTEDBL: return Common::KEYCODE_QUOTEDBL; case SDLK_HASH: return Common::KEYCODE_HASH; case SDLK_DOLLAR: return Common::KEYCODE_DOLLAR; case SDLK_AMPERSAND: return Common::KEYCODE_AMPERSAND; case SDLK_QUOTE: return Common::KEYCODE_QUOTE; case SDLK_LEFTPAREN: return Common::KEYCODE_LEFTPAREN; case SDLK_RIGHTPAREN: return Common::KEYCODE_RIGHTPAREN; case SDLK_ASTERISK: return Common::KEYCODE_ASTERISK; case SDLK_PLUS: return Common::KEYCODE_PLUS; case SDLK_COMMA: return Common::KEYCODE_COMMA; case SDLK_MINUS: return Common::KEYCODE_MINUS; case SDLK_PERIOD: return Common::KEYCODE_PERIOD; case SDLK_SLASH: return Common::KEYCODE_SLASH; case SDLK_0: return Common::KEYCODE_0; case SDLK_1: return Common::KEYCODE_1; case SDLK_2: return Common::KEYCODE_2; case SDLK_3: return Common::KEYCODE_3; case SDLK_4: return Common::KEYCODE_4; case SDLK_5: return Common::KEYCODE_5; case SDLK_6: return Common::KEYCODE_6; case SDLK_7: return Common::KEYCODE_7; case SDLK_8: return Common::KEYCODE_8; case SDLK_9: return Common::KEYCODE_9; case SDLK_COLON: return Common::KEYCODE_COLON; case SDLK_SEMICOLON: return Common::KEYCODE_SEMICOLON; case SDLK_LESS: return Common::KEYCODE_LESS; case SDLK_EQUALS: return Common::KEYCODE_EQUALS; case SDLK_GREATER: return Common::KEYCODE_GREATER; case SDLK_QUESTION: return Common::KEYCODE_QUESTION; case SDLK_AT: return Common::KEYCODE_AT; case SDLK_LEFTBRACKET: return Common::KEYCODE_LEFTBRACKET; case SDLK_BACKSLASH: return Common::KEYCODE_BACKSLASH; case SDLK_RIGHTBRACKET: return Common::KEYCODE_RIGHTBRACKET; case SDLK_CARET: return Common::KEYCODE_CARET; case SDLK_UNDERSCORE: return Common::KEYCODE_UNDERSCORE; case SDLK_BACKQUOTE: return Common::KEYCODE_BACKQUOTE; case SDLK_a: return Common::KEYCODE_a; case SDLK_b: return Common::KEYCODE_b; case SDLK_c: return Common::KEYCODE_c; case SDLK_d: return Common::KEYCODE_d; case SDLK_e: return Common::KEYCODE_e; case SDLK_f: return Common::KEYCODE_f; case SDLK_g: return Common::KEYCODE_g; case SDLK_h: return Common::KEYCODE_h; case SDLK_i: return Common::KEYCODE_i; case SDLK_j: return Common::KEYCODE_j; case SDLK_k: return Common::KEYCODE_k; case SDLK_l: return Common::KEYCODE_l; case SDLK_m: return Common::KEYCODE_m; case SDLK_n: return Common::KEYCODE_n; case SDLK_o: return Common::KEYCODE_o; case SDLK_p: return Common::KEYCODE_p; case SDLK_q: return Common::KEYCODE_q; case SDLK_r: return Common::KEYCODE_r; case SDLK_s: return Common::KEYCODE_s; case SDLK_t: return Common::KEYCODE_t; case SDLK_u: return Common::KEYCODE_u; case SDLK_v: return Common::KEYCODE_v; case SDLK_w: return Common::KEYCODE_w; case SDLK_x: return Common::KEYCODE_x; case SDLK_y: return Common::KEYCODE_y; case SDLK_z: return Common::KEYCODE_z; case SDLK_DELETE: return Common::KEYCODE_DELETE; #if SDL_VERSION_ATLEAST(2, 0, 0) case SDL_SCANCODE_TO_KEYCODE(SDL_SCANCODE_GRAVE): return Common::KEYCODE_TILDE; #else case SDLK_WORLD_16: return Common::KEYCODE_TILDE; #endif case SDLK_KP0: return Common::KEYCODE_KP0; case SDLK_KP1: return Common::KEYCODE_KP1; case SDLK_KP2: return Common::KEYCODE_KP2; case SDLK_KP3: return Common::KEYCODE_KP3; case SDLK_KP4: return Common::KEYCODE_KP4; case SDLK_KP5: return Common::KEYCODE_KP5; case SDLK_KP6: return Common::KEYCODE_KP6; case SDLK_KP7: return Common::KEYCODE_KP7; case SDLK_KP8: return Common::KEYCODE_KP8; case SDLK_KP9: return Common::KEYCODE_KP9; case SDLK_KP_PERIOD: return Common::KEYCODE_KP_PERIOD; case SDLK_KP_DIVIDE: return Common::KEYCODE_KP_DIVIDE; case SDLK_KP_MULTIPLY: return Common::KEYCODE_KP_MULTIPLY; case SDLK_KP_MINUS: return Common::KEYCODE_KP_MINUS; case SDLK_KP_PLUS: return Common::KEYCODE_KP_PLUS; case SDLK_KP_ENTER: return Common::KEYCODE_KP_ENTER; case SDLK_KP_EQUALS: return Common::KEYCODE_KP_EQUALS; case SDLK_UP: return Common::KEYCODE_UP; case SDLK_DOWN: return Common::KEYCODE_DOWN; case SDLK_RIGHT: return Common::KEYCODE_RIGHT; case SDLK_LEFT: return Common::KEYCODE_LEFT; case SDLK_INSERT: return Common::KEYCODE_INSERT; case SDLK_HOME: return Common::KEYCODE_HOME; case SDLK_END: return Common::KEYCODE_END; case SDLK_PAGEUP: return Common::KEYCODE_PAGEUP; case SDLK_PAGEDOWN: return Common::KEYCODE_PAGEDOWN; case SDLK_F1: return Common::KEYCODE_F1; case SDLK_F2: return Common::KEYCODE_F2; case SDLK_F3: return Common::KEYCODE_F3; case SDLK_F4: return Common::KEYCODE_F4; case SDLK_F5: return Common::KEYCODE_F5; case SDLK_F6: return Common::KEYCODE_F6; case SDLK_F7: return Common::KEYCODE_F7; case SDLK_F8: return Common::KEYCODE_F8; case SDLK_F9: return Common::KEYCODE_F9; case SDLK_F10: return Common::KEYCODE_F10; case SDLK_F11: return Common::KEYCODE_F11; case SDLK_F12: return Common::KEYCODE_F12; case SDLK_F13: return Common::KEYCODE_F13; case SDLK_F14: return Common::KEYCODE_F14; case SDLK_F15: return Common::KEYCODE_F15; case SDLK_NUMLOCK: return Common::KEYCODE_NUMLOCK; case SDLK_CAPSLOCK: return Common::KEYCODE_CAPSLOCK; case SDLK_SCROLLOCK: return Common::KEYCODE_SCROLLOCK; case SDLK_RSHIFT: return Common::KEYCODE_RSHIFT; case SDLK_LSHIFT: return Common::KEYCODE_LSHIFT; case SDLK_RCTRL: return Common::KEYCODE_RCTRL; case SDLK_LCTRL: return Common::KEYCODE_LCTRL; case SDLK_RALT: return Common::KEYCODE_RALT; case SDLK_LALT: return Common::KEYCODE_LALT; case SDLK_LSUPER: return Common::KEYCODE_LSUPER; case SDLK_RSUPER: return Common::KEYCODE_RSUPER; case SDLK_MODE: return Common::KEYCODE_MODE; case SDLK_COMPOSE: return Common::KEYCODE_COMPOSE; case SDLK_HELP: return Common::KEYCODE_HELP; case SDLK_PRINT: return Common::KEYCODE_PRINT; case SDLK_SYSREQ: return Common::KEYCODE_SYSREQ; #if !SDL_VERSION_ATLEAST(2, 0, 0) case SDLK_BREAK: return Common::KEYCODE_BREAK; #endif case SDLK_MENU: return Common::KEYCODE_MENU; case SDLK_POWER: return Common::KEYCODE_POWER; case SDLK_UNDO: return Common::KEYCODE_UNDO; default: return Common::KEYCODE_INVALID; } } bool SdlEventSource::pollEvent(Common::Event &event) { #if SDL_VERSION_ATLEAST(2, 0, 0) // In case we still need to send a key up event for a key down from a // TEXTINPUT event we do this immediately. if (_queuedFakeKeyUp) { event = _fakeKeyUp; _queuedFakeKeyUp = false; return true; } #endif // If the screen changed, send an Common::EVENT_SCREEN_CHANGED int screenID = ((OSystem_SDL *)g_system)->getGraphicsManager()->getScreenChangeID(); if (screenID != _lastScreenID) { _lastScreenID = screenID; event.type = Common::EVENT_SCREEN_CHANGED; return true; } if (_queuedFakeMouseMove) { event = _fakeMouseMove; _queuedFakeMouseMove = false; return true; } SDL_Event ev; while (SDL_PollEvent(&ev)) { preprocessEvents(&ev); if (dispatchSDLEvent(ev, event)) return true; } // Handle mouse control via analog joystick and keyboard if (handleKbdMouse(event)) { return true; } return false; } bool SdlEventSource::dispatchSDLEvent(SDL_Event &ev, Common::Event &event) { switch (ev.type) { case SDL_KEYDOWN: return handleKeyDown(ev, event); case SDL_KEYUP: return handleKeyUp(ev, event); case SDL_MOUSEMOTION: return handleMouseMotion(ev, event); case SDL_MOUSEBUTTONDOWN: return handleMouseButtonDown(ev, event); case SDL_MOUSEBUTTONUP: return handleMouseButtonUp(ev, event); case SDL_SYSWMEVENT: return handleSysWMEvent(ev, event); #if SDL_VERSION_ATLEAST(2, 0, 0) case SDL_MOUSEWHEEL: { Sint32 yDir = ev.wheel.y; // HACK: It seems we want the mouse coordinates supplied // with a mouse wheel event. However, SDL2 does not supply // these, thus we use whatever we got last time. It seems // these are always stored in _km.x, _km.y. if (!processMouseEvent(event, _km.x / MULTIPLIER, _km.y / MULTIPLIER)) { return false; } if (yDir < 0) { event.type = Common::EVENT_WHEELDOWN; return true; } else if (yDir > 0) { event.type = Common::EVENT_WHEELUP; return true; } else { return false; } } case SDL_TEXTINPUT: { // When we get a TEXTINPUT event it means we got some user input for // which no KEYDOWN exists. SDL 1.2 introduces a "fake" key down+up // in such cases. We will do the same to mimic it's behavior. event.type = Common::EVENT_KEYDOWN; event.kbd = Common::KeyState(Common::KEYCODE_INVALID, convUTF8ToUTF32(ev.text.text), 0); SDLModToOSystemKeyFlags(SDL_GetModState(), event); // Set the scroll lock sticky flag if (_scrollLock) event.kbd.flags |= Common::KBD_SCRL; // Fake a key up when we have a proper ascii value. _queuedFakeKeyUp = (event.kbd.ascii != 0); _fakeKeyUp = event; _fakeKeyUp.type = Common::EVENT_KEYUP; return _queuedFakeKeyUp; } case SDL_WINDOWEVENT: switch (ev.window.event) { case SDL_WINDOWEVENT_EXPOSED: if (_graphicsManager) _graphicsManager->notifyVideoExpose(); return false; // SDL2 documentation indicate that SDL_WINDOWEVENT_SIZE_CHANGED is sent either as a result // of the size being changed by an external event (for example the user resizing the window // or going fullscreen) or a call to the SDL API (for example SDL_SetWindowSize). On the // other hand SDL_WINDOWEVENT_RESIZED is only sent for resize resulting from an external event, // and is always preceded by a SDL_WINDOWEVENT_SIZE_CHANGED event. // We need to handle the programmatic resize as well so that the graphics manager always know // the current size. See comments in SdlWindow::createOrUpdateWindow for details of one case // where we need to call SDL_SetWindowSize and we need the resulting event to be processed. // However if the documentation is correct we can ignore SDL_WINDOWEVENT_RESIZED since when we // get one we should always get a SDL_WINDOWEVENT_SIZE_CHANGED as well. case SDL_WINDOWEVENT_SIZE_CHANGED: //case SDL_WINDOWEVENT_RESIZED: return handleResizeEvent(event, ev.window.data1, ev.window.data2); default: return false; } case SDL_JOYDEVICEADDED: return handleJoystickAdded(ev.jdevice); case SDL_JOYDEVICEREMOVED: return handleJoystickRemoved(ev.jdevice); case SDL_DROPFILE: event.type = Common::EVENT_DROP_FILE; event.path = Common::String(ev.drop.file); SDL_free(ev.drop.file); return true; #else case SDL_VIDEOEXPOSE: if (_graphicsManager) _graphicsManager->notifyVideoExpose(); return false; case SDL_VIDEORESIZE: return handleResizeEvent(event, ev.resize.w, ev.resize.h); #endif case SDL_QUIT: event.type = Common::EVENT_QUIT; return true; } if (_joystick) { switch (ev.type) { case SDL_JOYBUTTONDOWN: return handleJoyButtonDown(ev, event); case SDL_JOYBUTTONUP: return handleJoyButtonUp(ev, event); case SDL_JOYAXISMOTION: return handleJoyAxisMotion(ev, event); } } #if SDL_VERSION_ATLEAST(2, 0, 0) if (_controller) { switch (ev.type) { case SDL_CONTROLLERBUTTONDOWN: return handleControllerButton(ev, event, false); case SDL_CONTROLLERBUTTONUP: return handleControllerButton(ev, event, true); case SDL_CONTROLLERAXISMOTION: return handleControllerAxisMotion(ev, event); } } #endif return false; } bool SdlEventSource::handleKeyDown(SDL_Event &ev, Common::Event &event) { SDLModToOSystemKeyFlags(SDL_GetModState(), event); SDLKey sdlKeycode = obtainKeycode(ev.key.keysym); // Handle scroll lock as a key modifier if (sdlKeycode == SDLK_SCROLLOCK) _scrollLock = !_scrollLock; if (_scrollLock) event.kbd.flags |= Common::KBD_SCRL; // Ctrl-m toggles mouse capture if (event.kbd.hasFlags(Common::KBD_CTRL) && sdlKeycode == 'm') { if (_graphicsManager) { _graphicsManager->getWindow()->toggleMouseGrab(); } return false; } #if defined(MACOSX) // On Macintosh, Cmd-Q quits if ((ev.key.keysym.mod & KMOD_META) && sdlKeycode == 'q') { event.type = Common::EVENT_QUIT; return true; } #elif defined(POSIX) // On other *nix systems, Control-Q quits if ((ev.key.keysym.mod & KMOD_CTRL) && sdlKeycode == 'q') { event.type = Common::EVENT_QUIT; return true; } #else // Ctrl-z quits if ((event.kbd.hasFlags(Common::KBD_CTRL) && sdlKeycode == 'z')) { event.type = Common::EVENT_QUIT; return true; } #ifdef WIN32 // On Windows, also use the default Alt-F4 quit combination if ((ev.key.keysym.mod & KMOD_ALT) && sdlKeycode == SDLK_F4) { event.type = Common::EVENT_QUIT; return true; } #endif #endif // Ctrl-u toggles mute if ((ev.key.keysym.mod & KMOD_CTRL) && sdlKeycode == 'u') { event.type = Common::EVENT_MUTE; return true; } if (remapKey(ev, event)) return true; event.type = Common::EVENT_KEYDOWN; event.kbd.keycode = SDLToOSystemKeycode(sdlKeycode); event.kbd.ascii = mapKey(sdlKeycode, (SDLMod)ev.key.keysym.mod, obtainUnicode(ev.key.keysym)); #if SDL_VERSION_ATLEAST(2, 0, 0) event.kbdRepeat = ev.key.repeat; #endif return true; } bool SdlEventSource::handleKeyUp(SDL_Event &ev, Common::Event &event) { if (remapKey(ev, event)) return true; SDLKey sdlKeycode = obtainKeycode(ev.key.keysym); SDLMod mod = SDL_GetModState(); // Check if this is an event handled by handleKeyDown(), and stop if it is // Check if the Ctrl key is down, so that we can trap cases where the // user has the Ctrl key down, and has just released a special key if (mod & KMOD_CTRL) { if (sdlKeycode == 'm' || // Ctrl-m toggles mouse capture #if defined(MACOSX) // Meta - Q, handled below #elif defined(POSIX) sdlKeycode == 'q' || // On other *nix systems, Control-Q quits #else sdlKeycode == 'z' || // Ctrl-z quit #endif sdlKeycode == 'u') // Ctrl-u toggles mute return false; } // Same for other keys (Meta and Alt) #if defined(MACOSX) if ((mod & KMOD_META) && sdlKeycode == 'q') return false; // On Macintosh, Cmd-Q quits #endif // If we reached here, this isn't an event handled by handleKeyDown(), thus // continue normally event.type = Common::EVENT_KEYUP; event.kbd.keycode = SDLToOSystemKeycode(sdlKeycode); event.kbd.ascii = mapKey(sdlKeycode, (SDLMod)ev.key.keysym.mod, 0); // Ctrl-Alt- will change the GFX mode SDLModToOSystemKeyFlags(mod, event); // Set the scroll lock sticky flag if (_scrollLock) event.kbd.flags |= Common::KBD_SCRL; return true; } bool SdlEventSource::handleMouseMotion(SDL_Event &ev, Common::Event &event) { event.type = Common::EVENT_MOUSEMOVE; // update KbdMouse _km.x = ev.motion.x * MULTIPLIER; _km.y = ev.motion.y * MULTIPLIER; return processMouseEvent(event, ev.motion.x, ev.motion.y); } bool SdlEventSource::handleMouseButtonDown(SDL_Event &ev, Common::Event &event) { if (ev.button.button == SDL_BUTTON_LEFT) event.type = Common::EVENT_LBUTTONDOWN; else if (ev.button.button == SDL_BUTTON_RIGHT) event.type = Common::EVENT_RBUTTONDOWN; #if defined(SDL_BUTTON_WHEELUP) && defined(SDL_BUTTON_WHEELDOWN) else if (ev.button.button == SDL_BUTTON_WHEELUP) event.type = Common::EVENT_WHEELUP; else if (ev.button.button == SDL_BUTTON_WHEELDOWN) event.type = Common::EVENT_WHEELDOWN; #endif #if defined(SDL_BUTTON_MIDDLE) else if (ev.button.button == SDL_BUTTON_MIDDLE) event.type = Common::EVENT_MBUTTONDOWN; #endif else return false; // update KbdMouse _km.x = ev.button.x * MULTIPLIER; _km.y = ev.button.y * MULTIPLIER; return processMouseEvent(event, ev.button.x, ev.button.y); } bool SdlEventSource::handleMouseButtonUp(SDL_Event &ev, Common::Event &event) { if (ev.button.button == SDL_BUTTON_LEFT) event.type = Common::EVENT_LBUTTONUP; else if (ev.button.button == SDL_BUTTON_RIGHT) event.type = Common::EVENT_RBUTTONUP; #if defined(SDL_BUTTON_MIDDLE) else if (ev.button.button == SDL_BUTTON_MIDDLE) event.type = Common::EVENT_MBUTTONUP; #endif else return false; // update KbdMouse _km.x = ev.button.x * MULTIPLIER; _km.y = ev.button.y * MULTIPLIER; return processMouseEvent(event, ev.button.x, ev.button.y); } bool SdlEventSource::handleSysWMEvent(SDL_Event &ev, Common::Event &event) { return false; } void SdlEventSource::openJoystick(int joystickIndex) { if (SDL_NumJoysticks() > joystickIndex) { #if SDL_VERSION_ATLEAST(2, 0, 0) if (SDL_IsGameController(joystickIndex)) { _controller = SDL_GameControllerOpen(joystickIndex); debug("Using game controller: %s", SDL_GameControllerName(_controller)); } else #endif { _joystick = SDL_JoystickOpen(joystickIndex); debug("Using joystick: %s", #if SDL_VERSION_ATLEAST(2, 0, 0) SDL_JoystickName(_joystick) #else SDL_JoystickName(joystickIndex) #endif ); } } else { warning("Invalid joystick: %d", joystickIndex); } } void SdlEventSource::closeJoystick() { #if SDL_VERSION_ATLEAST(2, 0, 0) if (_controller) { SDL_GameControllerClose(_controller); _controller = nullptr; } #endif if (_joystick) { SDL_JoystickClose(_joystick); _joystick = nullptr; } } bool SdlEventSource::handleJoyButtonDown(SDL_Event &ev, Common::Event &event) { if (ev.jbutton.button == JOY_BUT_LMOUSE) { event.type = Common::EVENT_LBUTTONDOWN; return processMouseEvent(event, _km.x / MULTIPLIER, _km.y / MULTIPLIER); } else if (ev.jbutton.button == JOY_BUT_RMOUSE) { event.type = Common::EVENT_RBUTTONDOWN; return processMouseEvent(event, _km.x / MULTIPLIER, _km.y / MULTIPLIER); } else { event.type = Common::EVENT_KEYDOWN; switch (ev.jbutton.button) { case JOY_BUT_ESCAPE: event.kbd.keycode = Common::KEYCODE_ESCAPE; event.kbd.ascii = mapKey(SDLK_ESCAPE, (SDLMod)ev.key.keysym.mod, 0); break; case JOY_BUT_PERIOD: event.kbd.keycode = Common::KEYCODE_PERIOD; event.kbd.ascii = mapKey(SDLK_PERIOD, (SDLMod)ev.key.keysym.mod, 0); break; case JOY_BUT_SPACE: event.kbd.keycode = Common::KEYCODE_SPACE; event.kbd.ascii = mapKey(SDLK_SPACE, (SDLMod)ev.key.keysym.mod, 0); break; case JOY_BUT_F5: event.kbd.keycode = Common::KEYCODE_F5; event.kbd.ascii = mapKey(SDLK_F5, (SDLMod)ev.key.keysym.mod, 0); break; #ifdef ENABLE_VKEYBD case JOY_BUT_VKEYBOARD: // Toggles virtual keyboard event.type = Common::EVENT_VIRTUAL_KEYBOARD; break; #endif } return true; } } bool SdlEventSource::handleJoyButtonUp(SDL_Event &ev, Common::Event &event) { if (ev.jbutton.button == JOY_BUT_LMOUSE) { event.type = Common::EVENT_LBUTTONUP; return processMouseEvent(event, _km.x / MULTIPLIER, _km.y / MULTIPLIER); } else if (ev.jbutton.button == JOY_BUT_RMOUSE) { event.type = Common::EVENT_RBUTTONUP; return processMouseEvent(event, _km.x / MULTIPLIER, _km.y / MULTIPLIER); } else { event.type = Common::EVENT_KEYUP; switch (ev.jbutton.button) { case JOY_BUT_ESCAPE: event.kbd.keycode = Common::KEYCODE_ESCAPE; event.kbd.ascii = mapKey(SDLK_ESCAPE, (SDLMod)ev.key.keysym.mod, 0); break; case JOY_BUT_PERIOD: event.kbd.keycode = Common::KEYCODE_PERIOD; event.kbd.ascii = mapKey(SDLK_PERIOD, (SDLMod)ev.key.keysym.mod, 0); break; case JOY_BUT_SPACE: event.kbd.keycode = Common::KEYCODE_SPACE; event.kbd.ascii = mapKey(SDLK_SPACE, (SDLMod)ev.key.keysym.mod, 0); break; case JOY_BUT_F5: event.kbd.keycode = Common::KEYCODE_F5; event.kbd.ascii = mapKey(SDLK_F5, (SDLMod)ev.key.keysym.mod, 0); break; #ifdef ENABLE_VKEYBD case JOY_BUT_VKEYBOARD: // Toggles virtual keyboard // Handled in key down break; #endif } return true; } } bool SdlEventSource::handleJoyAxisMotion(SDL_Event &ev, Common::Event &event) { if (ev.jaxis.axis == JOY_XAXIS) { _km.joy_x = ev.jaxis.value; return handleAxisToMouseMotion(_km.joy_x, _km.joy_y); } else if (ev.jaxis.axis == JOY_YAXIS) { _km.joy_y = ev.jaxis.value; return handleAxisToMouseMotion(_km.joy_x, _km.joy_y); } return false; } #if SDL_VERSION_ATLEAST(2, 0, 0) bool SdlEventSource::handleJoystickAdded(const SDL_JoyDeviceEvent &device) { debug(5, "SdlEventSource: Received joystick added event for index '%d'", device.which); int joystick_num = ConfMan.getInt("joystick_num"); if (joystick_num == device.which) { debug(5, "SdlEventSource: Newly added joystick with index '%d' matches 'joysticky_num', trying to use it", device.which); closeJoystick(); openJoystick(joystick_num); } return false; } bool SdlEventSource::handleJoystickRemoved(const SDL_JoyDeviceEvent &device) { debug(5, "SdlEventSource: Received joystick removed event for instance id '%d'", device.which); SDL_Joystick *joystick; if (_controller) { joystick = SDL_GameControllerGetJoystick(_controller); } else { joystick = _joystick; } if (!joystick) { return false; } if (SDL_JoystickInstanceID(joystick) == device.which) { debug(5, "SdlEventSource: Newly removed joystick with instance id '%d' matches currently used joystick, closing current joystick", device.which); closeJoystick(); } return false; } bool SdlEventSource::handleControllerButton(const SDL_Event &ev, Common::Event &event, bool buttonUp) { using namespace Common; struct ControllerEventMapping { EventType normalType; KeyState normalKeystate; EventType modifierType; KeyState modifierKeystate; }; static const ControllerEventMapping mapping[] = { // SDL_CONTROLLER_BUTTON_A: Left mouse button { EVENT_LBUTTONDOWN, KeyState(), EVENT_LBUTTONDOWN, KeyState() }, // SDL_CONTROLLER_BUTTON_B: Right mouse button { EVENT_RBUTTONDOWN, KeyState(), EVENT_RBUTTONDOWN, KeyState() }, // SDL_CONTROLLER_BUTTON_X: Period (+R_trigger: Space) { EVENT_KEYDOWN, KeyState(KEYCODE_PERIOD, '.'), EVENT_KEYDOWN, KeyState(KEYCODE_SPACE, ASCII_SPACE) }, // SDL_CONTROLLER_BUTTON_Y: Escape (+R_trigger: Return) { EVENT_KEYDOWN, KeyState(KEYCODE_ESCAPE, ASCII_ESCAPE), EVENT_KEYDOWN, KeyState(KEYCODE_RETURN, ASCII_RETURN) }, // SDL_CONTROLLER_BUTTON_BACK: Virtual keyboard (+R_trigger: Predictive Input Dialog) #ifdef ENABLE_VKEYBD { EVENT_VIRTUAL_KEYBOARD, KeyState(), EVENT_PREDICTIVE_DIALOG, KeyState() }, #else { EVENT_INVALID, KeyState(), EVENT_PREDICTIVE_DIALOG, KeyState() }, #endif // SDL_CONTROLLER_BUTTON_GUIDE: Unmapped { EVENT_INVALID, KeyState(), EVENT_INVALID, KeyState() }, // SDL_CONTROLLER_BUTTON_START: ScummVM in game menu { EVENT_MAINMENU, KeyState(), EVENT_MAINMENU, KeyState() }, // SDL_CONTROLLER_BUTTON_LEFTSTICK: Unmapped { EVENT_INVALID, KeyState(), EVENT_INVALID, KeyState() }, // SDL_CONTROLLER_BUTTON_RIGHTSTICK: Unmapped { EVENT_INVALID, KeyState(), EVENT_INVALID, KeyState() }, // SDL_CONTROLLER_BUTTON_LEFTSHOULDER: Game menu { EVENT_KEYDOWN, KeyState(KEYCODE_F5, ASCII_F5), EVENT_KEYDOWN, KeyState(KEYCODE_F5, ASCII_F5) }, // SDL_CONTROLLER_BUTTON_RIGHTSHOULDER: Modifier + Shift { EVENT_KEYDOWN, KeyState(KEYCODE_INVALID, 0, KBD_SHIFT), EVENT_KEYDOWN, KeyState(KEYCODE_INVALID, 0, 0) }, // SDL_CONTROLLER_BUTTON_DPAD_UP: Up (+R_trigger: Up+Right) { EVENT_KEYDOWN, KeyState(KEYCODE_KP8, 0), EVENT_KEYDOWN, KeyState(KEYCODE_KP9, 0) }, // SDL_CONTROLLER_BUTTON_DPAD_DOWN: Down (+R_trigger: Down+Left) { EVENT_KEYDOWN, KeyState(KEYCODE_KP2, 0), EVENT_KEYDOWN, KeyState(KEYCODE_KP1, 0) }, // SDL_CONTROLLER_BUTTON_DPAD_LEFT: Left (+R_trigger: Up+Left) { EVENT_KEYDOWN, KeyState(KEYCODE_KP4, 0), EVENT_KEYDOWN, KeyState(KEYCODE_KP7, 0) }, // SDL_CONTROLLER_BUTTON_DPAD_RIGHT: Right (+R_trigger: Down+Right) { EVENT_KEYDOWN, KeyState(KEYCODE_KP6, 0), EVENT_KEYDOWN, KeyState(KEYCODE_KP3, 0) } }; if (ev.cbutton.button > SDL_CONTROLLER_BUTTON_DPAD_RIGHT) { warning("Unknown SDL controller button: '%d'", ev.cbutton.button); return false; } if (!_km.modifier) { event.type = mapping[ev.cbutton.button].normalType; event.kbd = mapping[ev.cbutton.button].normalKeystate; } else { event.type = mapping[ev.cbutton.button].modifierType; event.kbd = mapping[ev.cbutton.button].modifierKeystate; } // Setting the mouse speed modifier after filling the event structure above // ensures that the shift key events are correctly handled if (ev.cbutton.button == SDL_CONTROLLER_BUTTON_RIGHTSHOULDER) { // Right shoulder is the modifier button that makes the mouse go slower // and allows access to an extended layout while pressed. _km.modifier = !buttonUp; } if (event.type == EVENT_LBUTTONDOWN || event.type == EVENT_RBUTTONDOWN) { processMouseEvent(event, _km.x / MULTIPLIER, _km.y / MULTIPLIER); } if (buttonUp) { // The event mapping table is for button down events. If we received a button up event, // transform the event type to the corresponding up type. if (event.type == EVENT_KEYDOWN) { event.type = EVENT_KEYUP; } else if (event.type == EVENT_LBUTTONDOWN) { event.type = EVENT_LBUTTONUP; } else if (event.type == EVENT_RBUTTONDOWN) { event.type = EVENT_RBUTTONUP; } else { // Handled in key down event.type = EVENT_INVALID; } } return event.type != EVENT_INVALID; } bool SdlEventSource::handleControllerAxisMotion(const SDL_Event &ev, Common::Event &event) { if (ev.caxis.axis == SDL_CONTROLLER_AXIS_LEFTX) { _km.joy_x = ev.caxis.value; return handleAxisToMouseMotion(_km.joy_x, _km.joy_y); } else if (ev.caxis.axis == SDL_CONTROLLER_AXIS_LEFTY) { _km.joy_y = ev.caxis.value; return handleAxisToMouseMotion(_km.joy_x, _km.joy_y); } return false; } #endif bool SdlEventSource::handleAxisToMouseMotion(int16 xAxis, int16 yAxis) { #ifdef JOY_INVERT_Y yAxis = -yAxis; #endif // conversion factor between keyboard mouse and joy axis value int vel_to_axis = (1500 / MULTIPLIER); // radial and scaled deadzone float analogX = (float)xAxis; float analogY = (float)yAxis; float deadZone = (float)ConfMan.getInt("joystick_deadzone") * 1000.0f; float magnitude = sqrt(analogX * analogX + analogY * analogY); if (magnitude >= deadZone) { _km.x_down_count = 0; _km.y_down_count = 0; float scalingFactor = 1.0f / magnitude * (magnitude - deadZone) / (32769.0f - deadZone); _km.x_vel = (int16)(analogX * scalingFactor * 32768.0f / vel_to_axis); _km.y_vel = (int16)(analogY * scalingFactor * 32768.0f / vel_to_axis); } else { _km.x_vel = 0; _km.y_vel = 0; } return false; } bool SdlEventSource::remapKey(SDL_Event &ev, Common::Event &event) { return false; } void SdlEventSource::resetKeyboardEmulation(int16 x_max, int16 y_max) { _km.x_max = x_max; _km.y_max = y_max; _km.delay_time = 12; _km.last_time = 0; _km.modifier = false; _km.joy_x = 0; _km.joy_y = 0; } void SdlEventSource::fakeWarpMouse(const int x, const int y) { _queuedFakeMouseMove = true; _fakeMouseMove.type = Common::EVENT_MOUSEMOVE; _fakeMouseMove.mouse = Common::Point(x, y); } bool SdlEventSource::handleResizeEvent(Common::Event &event, int w, int h) { if (_graphicsManager) { _graphicsManager->notifyResize(w, h); // If the screen changed, send an Common::EVENT_SCREEN_CHANGED int screenID = ((OSystem_SDL *)g_system)->getGraphicsManager()->getScreenChangeID(); if (screenID != _lastScreenID) { _lastScreenID = screenID; event.type = Common::EVENT_SCREEN_CHANGED; return true; } } return false; } SDLKey SdlEventSource::obtainKeycode(const SDL_keysym keySym) { #if !SDL_VERSION_ATLEAST(2, 0, 0) && defined(WIN32) && !defined(_WIN32_WCE) // WORKAROUND: SDL 1.2 on Windows does not use the user configured keyboard layout, // resulting in "keySym.sym" values to always be those expected for an US keyboard. // For example, SDL returns SDLK_Q when pressing the 'A' key on an AZERTY keyboard. // This defeats the purpose of keycodes which is to be able to refer to a key without // knowing where it is physically located. // We work around this issue by querying the currently active Windows keyboard layout // using the scancode provided by SDL. if (keySym.sym >= SDLK_0 && keySym.sym <= SDLK_9) { // The keycode returned by SDL is kept for the number keys. // Querying the keyboard layout for those would return the base key values // for AZERTY keyboards, which are not numbers. For example, SDLK_1 would // map to SDLK_AMPERSAND. This is theoretically correct but practically unhelpful, // because it makes it impossible to handle key combinations such as "ctrl-1". return keySym.sym; } int vk = MapVirtualKey(keySym.scancode, MAPVK_VSC_TO_VK); if (vk) { int ch = (MapVirtualKey(vk, MAPVK_VK_TO_CHAR) & 0x7FFF); // The top bit of the result of MapVirtualKey with MAPVK_VSC_TO_VK signals // a dead key was pressed. In that case we keep the value of the accent alone. if (ch) { if (ch >= 'A' && ch <= 'Z') { // Windows returns uppercase ASCII whereas SDL expects lowercase return (SDLKey)(SDLK_a + (ch - 'A')); } else { return (SDLKey)ch; } } } #endif return keySym.sym; } uint32 SdlEventSource::obtainUnicode(const SDL_keysym keySym) { #if SDL_VERSION_ATLEAST(2, 0, 0) SDL_Event events[2]; // Update the event queue here to give SDL a chance to insert TEXTINPUT // events for KEYDOWN events. Otherwise we have a high chance that on // Windows the TEXTINPUT event is not in the event queue at this point. // In this case we will get two events with ascii values due to mapKey // and dispatchSDLEvent. This results in nasty double input of characters // in the GUI. // // FIXME: This is all a bit fragile because in mapKey we derive the ascii // value from the key code if no unicode value is given. This is legacy // behavior and should be removed anyway. If that is removed, we might not // even need to do this peeking here but instead can rely on the // SDL_TEXTINPUT case in dispatchSDLEvent to introduce keydown/keyup with // proper ASCII values (but with KEYCODE_INVALID as keycode). SDL_PumpEvents(); // In SDL2, the unicode field has been removed from the keysym struct. // Instead a SDL_TEXTINPUT event is generated on key combinations that // generates unicode. // Here we peek into the event queue for the event to see if it exists. int n = SDL_PeepEvents(events, 2, SDL_PEEKEVENT, SDL_KEYDOWN, SDL_TEXTINPUT); // Make sure that the TEXTINPUT event belongs to this KEYDOWN // event and not another pending one. if ((n > 0 && events[0].type == SDL_TEXTINPUT) || (n > 1 && events[0].type != SDL_KEYDOWN && events[1].type == SDL_TEXTINPUT)) { // Remove the text input event we associate with the key press. This // makes sure we never get any SDL_TEXTINPUT events which do "belong" // to SDL_KEYDOWN events. n = SDL_PeepEvents(events, 1, SDL_GETEVENT, SDL_TEXTINPUT, SDL_TEXTINPUT); // This is basically a paranoia safety check because we know there // must be a text input event in the queue. if (n > 0) { return convUTF8ToUTF32(events[0].text.text); } else { return 0; } } else { return 0; } #else return keySym.unicode; #endif } #endif