/** * @file llkeyboardsdl.cpp * @brief Handler for assignable key bindings * * $LicenseInfo:firstyear=2001&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2010, Linden Research, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ #if LL_SDL #include "linden_common.h" #include "llkeyboardsdl.h" #include "llwindowcallbacks.h" #include "SDL/SDL.h" LLKeyboardSDL::LLKeyboardSDL() { // Set up key mapping for SDL - eventually can read this from a file? // Anything not in the key map gets dropped // Add default A-Z // Virtual key mappings from SDL_keysym.h ... // SDL maps the letter keys to the ASCII you'd expect, but it's lowercase... U16 cur_char; for (cur_char = 'A'; cur_char <= 'Z'; cur_char++) { mTranslateKeyMap[cur_char] = cur_char; } for (cur_char = 'a'; cur_char <= 'z'; cur_char++) { mTranslateKeyMap[cur_char] = (cur_char - 'a') + 'A'; } for (cur_char = '0'; cur_char <= '9'; cur_char++) { mTranslateKeyMap[cur_char] = cur_char; } // These ones are translated manually upon keydown/keyup because // SDL doesn't handle their numlock transition. //mTranslateKeyMap[SDLK_KP4] = KEY_PAD_LEFT; //mTranslateKeyMap[SDLK_KP6] = KEY_PAD_RIGHT; //mTranslateKeyMap[SDLK_KP8] = KEY_PAD_UP; //mTranslateKeyMap[SDLK_KP2] = KEY_PAD_DOWN; //mTranslateKeyMap[SDLK_KP_PERIOD] = KEY_DELETE; //mTranslateKeyMap[SDLK_KP7] = KEY_HOME; //mTranslateKeyMap[SDLK_KP1] = KEY_END; //mTranslateKeyMap[SDLK_KP9] = KEY_PAGE_UP; //mTranslateKeyMap[SDLK_KP3] = KEY_PAGE_DOWN; //mTranslateKeyMap[SDLK_KP0] = KEY_INSERT; mTranslateKeyMap[SDLK_SPACE] = ' '; mTranslateKeyMap[SDLK_RETURN] = KEY_RETURN; mTranslateKeyMap[SDLK_LEFT] = KEY_LEFT; mTranslateKeyMap[SDLK_RIGHT] = KEY_RIGHT; mTranslateKeyMap[SDLK_UP] = KEY_UP; mTranslateKeyMap[SDLK_DOWN] = KEY_DOWN; mTranslateKeyMap[SDLK_ESCAPE] = KEY_ESCAPE; mTranslateKeyMap[SDLK_KP_ENTER] = KEY_RETURN; mTranslateKeyMap[SDLK_ESCAPE] = KEY_ESCAPE; mTranslateKeyMap[SDLK_BACKSPACE] = KEY_BACKSPACE; mTranslateKeyMap[SDLK_DELETE] = KEY_DELETE; mTranslateKeyMap[SDLK_LSHIFT] = KEY_SHIFT; mTranslateKeyMap[SDLK_RSHIFT] = KEY_SHIFT; mTranslateKeyMap[SDLK_LCTRL] = KEY_CONTROL; mTranslateKeyMap[SDLK_RCTRL] = KEY_CONTROL; mTranslateKeyMap[SDLK_LALT] = KEY_ALT; mTranslateKeyMap[SDLK_RALT] = KEY_ALT; mTranslateKeyMap[SDLK_HOME] = KEY_HOME; mTranslateKeyMap[SDLK_END] = KEY_END; mTranslateKeyMap[SDLK_PAGEUP] = KEY_PAGE_UP; mTranslateKeyMap[SDLK_PAGEDOWN] = KEY_PAGE_DOWN; mTranslateKeyMap[SDLK_MINUS] = KEY_HYPHEN; mTranslateKeyMap[SDLK_EQUALS] = KEY_EQUALS; mTranslateKeyMap[SDLK_KP_EQUALS] = KEY_EQUALS; mTranslateKeyMap[SDLK_INSERT] = KEY_INSERT; mTranslateKeyMap[SDLK_CAPSLOCK] = KEY_CAPSLOCK; mTranslateKeyMap[SDLK_TAB] = KEY_TAB; mTranslateKeyMap[SDLK_KP_PLUS] = KEY_ADD; mTranslateKeyMap[SDLK_KP_MINUS] = KEY_SUBTRACT; mTranslateKeyMap[SDLK_KP_MULTIPLY] = KEY_MULTIPLY; mTranslateKeyMap[SDLK_KP_DIVIDE] = KEY_PAD_DIVIDE; mTranslateKeyMap[SDLK_F1] = KEY_F1; mTranslateKeyMap[SDLK_F2] = KEY_F2; mTranslateKeyMap[SDLK_F3] = KEY_F3; mTranslateKeyMap[SDLK_F4] = KEY_F4; mTranslateKeyMap[SDLK_F5] = KEY_F5; mTranslateKeyMap[SDLK_F6] = KEY_F6; mTranslateKeyMap[SDLK_F7] = KEY_F7; mTranslateKeyMap[SDLK_F8] = KEY_F8; mTranslateKeyMap[SDLK_F9] = KEY_F9; mTranslateKeyMap[SDLK_F10] = KEY_F10; mTranslateKeyMap[SDLK_F11] = KEY_F11; mTranslateKeyMap[SDLK_F12] = KEY_F12; mTranslateKeyMap[SDLK_PLUS] = '='; mTranslateKeyMap[SDLK_COMMA] = ','; mTranslateKeyMap[SDLK_MINUS] = '-'; mTranslateKeyMap[SDLK_PERIOD] = '.'; mTranslateKeyMap[SDLK_BACKQUOTE] = '`'; mTranslateKeyMap[SDLK_SLASH] = KEY_DIVIDE; mTranslateKeyMap[SDLK_SEMICOLON] = ';'; mTranslateKeyMap[SDLK_LEFTBRACKET] = '['; mTranslateKeyMap[SDLK_BACKSLASH] = '\\'; mTranslateKeyMap[SDLK_RIGHTBRACKET] = ']'; mTranslateKeyMap[SDLK_QUOTE] = '\''; // Build inverse map std::map<U16, KEY>::iterator iter; for (iter = mTranslateKeyMap.begin(); iter != mTranslateKeyMap.end(); iter++) { mInvTranslateKeyMap[iter->second] = iter->first; } // numpad map mTranslateNumpadMap[SDLK_KP0] = KEY_PAD_INS; mTranslateNumpadMap[SDLK_KP1] = KEY_PAD_END; mTranslateNumpadMap[SDLK_KP2] = KEY_PAD_DOWN; mTranslateNumpadMap[SDLK_KP3] = KEY_PAD_PGDN; mTranslateNumpadMap[SDLK_KP4] = KEY_PAD_LEFT; mTranslateNumpadMap[SDLK_KP5] = KEY_PAD_CENTER; mTranslateNumpadMap[SDLK_KP6] = KEY_PAD_RIGHT; mTranslateNumpadMap[SDLK_KP7] = KEY_PAD_HOME; mTranslateNumpadMap[SDLK_KP8] = KEY_PAD_UP; mTranslateNumpadMap[SDLK_KP9] = KEY_PAD_PGUP; mTranslateNumpadMap[SDLK_KP_PERIOD] = KEY_PAD_DEL; // build inverse numpad map for (iter = mTranslateNumpadMap.begin(); iter != mTranslateNumpadMap.end(); iter++) { mInvTranslateNumpadMap[iter->second] = iter->first; } } void LLKeyboardSDL::resetMaskKeys() { SDLMod mask = SDL_GetModState(); // MBW -- XXX -- This mirrors the operation of the Windows version of resetMaskKeys(). // It looks a bit suspicious, as it won't correct for keys that have been released. // Is this the way it's supposed to work? if(mask & KMOD_SHIFT) { mKeyLevel[KEY_SHIFT] = TRUE; } if(mask & KMOD_CTRL) { mKeyLevel[KEY_CONTROL] = TRUE; } if(mask & KMOD_ALT) { mKeyLevel[KEY_ALT] = TRUE; } } MASK LLKeyboardSDL::updateModifiers(const U32 mask) { // translate the mask MASK out_mask = MASK_NONE; if(mask & KMOD_SHIFT) { out_mask |= MASK_SHIFT; } if(mask & KMOD_CTRL) { out_mask |= MASK_CONTROL; } if(mask & KMOD_ALT) { out_mask |= MASK_ALT; } return out_mask; } static U16 adjustNativekeyFromUnhandledMask(const U16 key, const U32 mask) { // SDL doesn't automatically adjust the keysym according to // whether NUMLOCK is engaged, so we massage the keysym manually. U16 rtn = key; if (!(mask & KMOD_NUM)) { switch (key) { case SDLK_KP_PERIOD: rtn = SDLK_DELETE; break; case SDLK_KP0: rtn = SDLK_INSERT; break; case SDLK_KP1: rtn = SDLK_END; break; case SDLK_KP2: rtn = SDLK_DOWN; break; case SDLK_KP3: rtn = SDLK_PAGEDOWN; break; case SDLK_KP4: rtn = SDLK_LEFT; break; case SDLK_KP6: rtn = SDLK_RIGHT; break; case SDLK_KP7: rtn = SDLK_HOME; break; case SDLK_KP8: rtn = SDLK_UP; break; case SDLK_KP9: rtn = SDLK_PAGEUP; break; } } return rtn; } BOOL LLKeyboardSDL::handleKeyDown(const U16 key, const U32 mask) { U16 adjusted_nativekey; KEY translated_key = 0; U32 translated_mask = MASK_NONE; BOOL handled = FALSE; adjusted_nativekey = adjustNativekeyFromUnhandledMask(key, mask); translated_mask = updateModifiers(mask); if(translateNumpadKey(adjusted_nativekey, &translated_key)) { handled = handleTranslatedKeyDown(translated_key, translated_mask); } return handled; } BOOL LLKeyboardSDL::handleKeyUp(const U16 key, const U32 mask) { U16 adjusted_nativekey; KEY translated_key = 0; U32 translated_mask = MASK_NONE; BOOL handled = FALSE; adjusted_nativekey = adjustNativekeyFromUnhandledMask(key, mask); translated_mask = updateModifiers(mask); if(translateNumpadKey(adjusted_nativekey, &translated_key)) { handled = handleTranslatedKeyUp(translated_key, translated_mask); } return handled; } MASK LLKeyboardSDL::currentMask(BOOL for_mouse_event) { MASK result = MASK_NONE; SDLMod mask = SDL_GetModState(); if (mask & KMOD_SHIFT) result |= MASK_SHIFT; if (mask & KMOD_CTRL) result |= MASK_CONTROL; if (mask & KMOD_ALT) result |= MASK_ALT; // For keyboard events, consider Meta keys equivalent to Control if (!for_mouse_event) { if (mask & KMOD_META) result |= MASK_CONTROL; } return result; } void LLKeyboardSDL::scanKeyboard() { for (S32 key = 0; key < KEY_COUNT; key++) { // Generate callback if any event has occurred on this key this frame. // Can't just test mKeyLevel, because this could be a slow frame and // key might have gone down then up. JC if (mKeyLevel[key] || mKeyDown[key] || mKeyUp[key]) { mCurScanKey = key; mCallbacks->handleScanKey(key, mKeyDown[key], mKeyUp[key], mKeyLevel[key]); } } // Reset edges for next frame for (S32 key = 0; key < KEY_COUNT; key++) { mKeyUp[key] = FALSE; mKeyDown[key] = FALSE; if (mKeyLevel[key]) { mKeyLevelFrameCount[key]++; } } } BOOL LLKeyboardSDL::translateNumpadKey( const U16 os_key, KEY *translated_key) { return translateKey(os_key, translated_key); } U16 LLKeyboardSDL::inverseTranslateNumpadKey(const KEY translated_key) { return inverseTranslateKey(translated_key); } #endif