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