Terminal.cpp

00001 /* mbed Terminal TextDisplay Library
00002  * Copyright (c) 2007-2009 sford
00003  * Released under the MIT License: http://mbed.org/license/mit
00004  */
00005 
00006 #include "Terminal.h"
00007 
00008 #include "mbed.h"
00009 
00010 Terminal::Terminal(PinName tx, PinName rx) : _serial(tx, rx) {
00011     cls();
00012 }
00013 
00014 void Terminal::character(uint16_t column, uint16_t row, int c) {
00015     // Cursor Home    <ESC>[{ROW};{COLUMN}H 
00016     _serial.printf("\033[%u;%uH%c", row + 1, column + 1, c);
00017 }
00018 
00019 uint16_t Terminal::columns() {
00020     return 80;
00021 }
00022 
00023 uint16_t Terminal::rows() { 
00024     return 35; 
00025 }
00026 
00027 void Terminal::cls() {
00028     _serial.printf("\033[2J");
00029 }
00030 
00031 void Terminal::foreground(uint32_t colour) {
00032 
00033     /* Set Attribute Mode    <ESC>[{n}m
00034      * - Sets display attribute settings. The following lists standard attributes:
00035      * 
00036      * Foreground Colours
00037      * 30    Black
00038      * 31    Red
00039      * 32    Green
00040      * 33    Yellow
00041      * 34    Blue
00042      * 35    Magenta
00043      * 36    Cyan
00044      * 37    White
00045      */
00046     uint32_t r = (colour >> 23) & 1;
00047     uint32_t g = (colour >> 15) & 1;
00048     uint32_t b = (colour >> 7) & 1;
00049     uint32_t bgr = (b << 2) | (g << 1) | (r << 0);
00050     uint32_t c = 30 + bgr;
00051     _serial.printf("\033[%um", c);
00052 }
00053 
00054 void Terminal::background(uint32_t colour) {
00055 
00056     /* Background Colours
00057      * 40    Black
00058      * 41    Red
00059      * 42    Green
00060      * 43    Yellow
00061      * 44    Blue
00062      * 45    Magenta
00063      * 46    Cyan
00064      * 47    White
00065      */
00066     uint32_t r = (colour >> 23) & 1;
00067     uint32_t g = (colour >> 15) & 1;
00068     uint32_t b = (colour >> 7) & 1;
00069     uint32_t bgr = (b << 2) | (g << 1) | (r << 0);
00070     uint32_t c = 40 + bgr;
00071     _serial.printf("\033[%um", c);
00072 }
00073