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contiki/backyard/core/ctk/ctk-term-out.c

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/*
* Copyright (c) 2005, Swedish Institute of Computer Science
* 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. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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-term-out.c,v 1.1 2007/05/26 21:54:33 oliverschmidt Exp $
*/
#include "libconio.h"
#include "ctk-term-int.h"
#include <string.h>
#include <stdio.h> // sprintf
#define PRINTF(x)
/*-----------------------------------------------------------------------------------*/
/*
* #defines and enums
*/
/*-----------------------------------------------------------------------------------*/
#define CHARS_WIDTH LIBCONIO_CONF_SCREEN_WIDTH
#define CHARS_HEIGHT LIBCONIO_CONF_SCREEN_HEIGHT
/*-----------------------------------------------------------------------------------*/
/*
* Local variables
*/
/*-----------------------------------------------------------------------------------*/
/* ANSI/VT100 colors
0 - None
1 - Bold (inc. inten)
4 - Underscore
7 - Reverse
x0 - black
x1 - red
x2 - green
x3 - yellow
x4 - blue
x5 - magenta
x6 - cyan
x7 - white
x = 3 fg x = 4 bg
*/
#if 0 /* Colorfull theme */
static const char backgroundcolor[] = "\033[0;37;40m";
static const char wincol[] = "\033[0;37;40m";
static const char wincol_f[] = "\033[0;1;37;40m";
static const char wincol_d[] = "\033[0;30;47m";
static const char sepcol[] = "\033[0;37;40m";
static const char sepcol_f[] = "\033[0;1;37;40m";
static const char sepcol_d[] = "\033[0;30;47m";
static const char labcol[] = "\033[0;37;40m";
static const char labcol_f[] = "\033[1;37;40m";
static const char labcol_d[] = "\033[0;30;47m";
static const char butcol[] = "\033[0;37;40m";
static const char butcol_w[] = "\033[0;30;47m";
static const char butcol_f[] = "\033[0;1;37;40m";
static const char butcol_fw[] = "\033[0;1;37;46m";
static const char butcol_d[] = "\033[0;30;47m";
static const char butcol_dw[] = "\033[0;37;46m";
static const char hlcol[] = "\033[0;4;36;40m";
static const char hlcol_w[] = "\033[0;4;30;47m";
static const char hlcol_f[] = "\033[0;1;4;36;40m";
static const char hlcol_fw[] = "\033[0;1;4;37;46m";
static const char hlcol_d[] = "\033[0;4;34;47m";
static const char hlcol_dw[] = "\033[0;4;37;46m";
static const char iconcol[] = "\033[0;32;40m";
static const char iconcol_w[] = "\033[0;30;42m";
static const char menucolor[] = "\033[0;37;43m";
static const char activemenucolor[] = "\033[0;1;37;43m";
#endif
#if 1 /* B/W theme */
static const char backgroundcolor[] = "\033[0m";
static const char wincol[] = "\033[0m";
static const char wincol_f[] = "\033[0;1m";
static const char wincol_d[] = "\033[0;7m";
static const char sepcol[] = "\033[0m";
static const char sepcol_f[] = "\033[0;1m";
static const char sepcol_d[] = "\033[0;7m";
static const char labcol[] = "\033[0m";
static const char labcol_f[] = "\033[0;1m";
static const char labcol_d[] = "\033[0;7m";
static const char butcol[] = "\033[0m";
static const char butcol_w[] = "\033[0m";
static const char butcol_f[] = "\033[0;1m";
static const char butcol_fw[] = "\033[0;1;7m";
static const char butcol_d[] = "\033[0;7m";
static const char butcol_dw[] = "\033[0m";
static const char hlcol[] = "\033[0;4m";
static const char hlcol_w[] = "\033[0;4;7m";
static const char hlcol_f[] = "\033[0;1;4m";
static const char hlcol_fw[] = "\033[0;1;4;7m";
static const char hlcol_d[] = "\033[0;4;7m";
static const char hlcol_dw[] = "\033[0;4m";
static const char iconcol[] = "\033[0m";
static const char iconcol_w[] = "\033[0;7m";
static const char menucolor[] = "\033[0;7m";
static const char activemenucolor[] = "\033[0m";
#endif
static const char* const colortheme[] =
{
backgroundcolor,
/* Window colors */
wincol, wincol, wincol_f, wincol_f, wincol_d, wincol_d,
/* Separator colors. */
sepcol, sepcol, sepcol_f, sepcol_f, sepcol_d, sepcol_d,
/* Label colors. */
labcol, labcol, labcol_f, labcol_f, labcol_d, labcol_d,
/* Button colors. */
butcol, butcol_w, butcol_f, butcol_fw, butcol_d, butcol_dw,
/* Hyperlink colors. */
hlcol, hlcol_w, hlcol_f, hlcol_fw, hlcol_d, hlcol_dw,
/* Textentry colors. */
butcol, butcol_w, butcol_f, butcol_fw, butcol_d, butcol_dw,
/* Icon colors */
iconcol, iconcol_w, iconcol, iconcol_w, iconcol, iconcol_w,
/* Menu colors. */
menucolor, activemenucolor, activemenucolor
};
static unsigned char
screen[CHARS_WIDTH * CHARS_HEIGHT],
colorscreen[CHARS_WIDTH * CHARS_HEIGHT];
/*-----------------------------------------------------------------------------------*/
/*
* Add a character to the screen buffer
*/
/*-----------------------------------------------------------------------------------*/
void
ctk_term_out_update_screen(unsigned char xpos,
unsigned char ypos,
unsigned char c,
unsigned char color)
{
if (c < 0x20) c = 0x20;
screen[xpos + ypos * CHARS_WIDTH] = c;
colorscreen[xpos + ypos * CHARS_WIDTH] = color;
}
/*-----------------------------------------------------------------------------------*/
/*
* Check if there are any updated pending. If so, make the first one current
*/
/*-----------------------------------------------------------------------------------*/
static void
check_updates(struct ctk_term_state* ts)
{
if (ts->updates_current != NULL) return;
ts->updates_current = ctk_term_update_dequeue(ts);
if (ts->updates_current != NULL) {
ts->x = ts->updates_current->x;
ts->y = ts->updates_current->y;
ts->w = ts->updates_current->w;
ts->h = ts->updates_current->h;
ts->x1 = ts->x2 = ts->x;
ts->y1 = ts->y2 = ts->y;
}
}
/*-----------------------------------------------------------------------------------*/
/** \internal
* Adds a cursor position change to buffer. Returns 0 if string doesn't fit else
* number of bytes actually written is returned.
*
* \param x X coordinate (screen coordinates)
* \param y Y coordinate (screen coordinates)
* \param buf Output buffer
* \param maxlen Maximum number of bytes to store in buffer
*/
/*-----------------------------------------------------------------------------------*/
static unsigned short
move_to(unsigned char x, unsigned char y, unsigned char* buf, unsigned short maxlen)
{
if (maxlen < 14) return 0;
return (unsigned short)sprintf((char*)buf, "\033[%d;%dH", y+1, x+1);
}
/*-----------------------------------------------------------------------------------*/
/** \internal
* Adds a attribute string to buffer. Returns 0 if string doesn't fit else
* number of bytes actually written is returned.
*
* \param c Color number
* \param buf Output buffer
* \param maxlen Maximum number of bytes to store in buffer
*/
/*-----------------------------------------------------------------------------------*/
static unsigned short
set_color(unsigned char c, unsigned char* buf, unsigned short maxlen)
{
int len = strlen((const char*)colortheme[c]);
if (maxlen < len) return 0;
memcpy(buf, colortheme[c], len);
return len;
}
/*-----------------------------------------------------------------------------------*/
/**
* Stores terminal data in buffer provided by caller. Returns number of bytes written
* to the output buffer.
*
* \param ts State information
* \param buf Output buffer
* \param maxlen Maximum number of bytes to store in buffer
*/
/*-----------------------------------------------------------------------------------*/
unsigned short
ctk_term_send(struct ctk_term_state* ts,
unsigned char* buf,
unsigned short maxlen)
{
unsigned char x, y, x0;
unsigned char col, c;
unsigned short tmp;
unsigned short totlen;
check_updates(ts);
if (ts->updates_current == NULL) return 0;
x0 = ts->x1;
col = ts->c1;
totlen = 0;
/* Loop across the update region starting at (x1,y1) */
for(y = ts->y1; y < ts->y + ts->h; ++y) {
for(x = x0; x < ts->x + ts->w; ++x) {
/* New line ? */
if (x == ts->x) {
/* Move cursor to start of line */
tmp = move_to(x,y,buf,maxlen);
if (tmp == 0) goto loopend;
buf += tmp;
totlen += tmp;
maxlen -= tmp;
}
/* Check color */
c = colorscreen[x + y * CHARS_WIDTH];
if (c != col) {
PRINTF(("colorchange at (%d, %d) to %d\n", x,y,c));
/* Send new color information */
tmp = set_color(c, buf, maxlen);
if (tmp == 0) goto loopend;
col = c;
buf += tmp;
totlen += tmp;
maxlen -= tmp;
}
/* Check remaining space */
if (maxlen < 1) goto loopend;
/* Add character */
*buf = screen[x + y * CHARS_WIDTH];
buf++;
maxlen--;
totlen++;
}
x0 = ts->x;
}
loopend:
/* Always save current color state */
ts->c2 = col;
PRINTF(("ending loop at (%d, %d)\n", x,y));
/* Check if done */
if (x == ts->x+ts->w && y == ts->y+ts->h) {
/* Signal done with this update */
ts->x2 = ts->y2 = 0;
}
else {
/* Not done. Save state */
ts->x2 = x;
ts->y2 = y;
}
return totlen;
}
/*-----------------------------------------------------------------------------------*/
/**
* Called by client when the data returned by ctk_term_send() are successfully sent.
*
* \param ts State information
*/
/*-----------------------------------------------------------------------------------*/
void ctk_term_sent(struct ctk_term_state* ts)
{
if (ts->updates_current != NULL) {
/* Check if current update done */
if (ts->x2 == 0 && ts->y2 == 0) {
/* Yes, free it */
ctk_term_update_free(ts, ts->updates_current);
ts->updates_current = NULL;
}
else {
/* Nop. Update start posititions */
ts->x1 = ts->x2;
ts->y1 = ts->y2;
}
ts->c1 = ts->c2;
}
}
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