/* * Copyright (c) 2002-2003, Adam Dunkels. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * 3. The name of the author may not be used to endorse or promote * products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * This file is part of the Contiki operating system. * * $Id: ctk-textentry-multiline.c,v 1.2 2006/08/21 21:59:59 oliverschmidt Exp $ * */ #include <string.h> #include "ctk/ctk.h" #include "lib/ctk-textentry-multiline.h" /*-----------------------------------------------------------------------------------*/ unsigned char ctk_textentry_multiline_input(ctk_arch_key_t c, struct ctk_textentry *t) { unsigned char len; switch(c) { case 0: t->xpos = (unsigned char)strlen(&t->text[t->ypos * (t->len + 1)]); if(t->xpos == t->len) { --t->xpos; } return 1; case CH_CURS_UP: if(t->ypos == 0) { t->xpos = 0; return 1; } --t->ypos; break; case CH_CURS_DOWN: if(t->ypos == t->h - 1) { t->xpos = (unsigned char)strlen(&t->text[t->ypos * (t->len + 1)]); if(t->xpos == t->len) { --t->xpos; } return 1; } ++t->ypos; break; case CH_ENTER: if(t->ypos == t->h - 1) { return 0; } ++t->ypos; t->xpos = 0; return 1; default: return 0; } len = (unsigned char)strlen(&t->text[t->ypos * (t->len + 1)]); if(t->xpos > len) { t->xpos = len; } return 1; } /*-----------------------------------------------------------------------------------*/