TextDisplays

Published 25 Nov 2009, by Simon Ford
TextDisplay, TextLCD
Embed: (wiki syntax)
« Back to documentation index
Show/hide line numbers Terminal.cpp Source File
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(int column, int row, int c) {
00015     // Cursor Home  <ESC>[{ROW};{COLUMN}H 
00016     _serial.printf("\033[%d;%dH%c", row + 1, column + 1, c);
00017 }
00018 
00019 int Terminal::columns() {
00020     return 80;
00021 }
00022 
00023 int Terminal::rows() { 
00024     return 35; 
00025 }
00026 
00027 void Terminal::cls() {
00028     _serial.printf("\033[2J");
00029 }
00030 
00031 void Terminal::foreground(int 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      int r = (colour >> 23) & 1;
00047      int g = (colour >> 15) & 1;
00048      int b = (colour >> 7) & 1;
00049      int bgr = (b << 2) | (g << 1) | (r << 0);
00050      int c = 30 + bgr;
00051     _serial.printf("\033[%dm", c);
00052 }
00053 
00054 void Terminal::background(int 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      int r = (colour >> 23) & 1;
00067      int g = (colour >> 15) & 1;
00068      int b = (colour >> 7) & 1;
00069      int bgr = (b << 2) | (g << 1) | (r << 0);
00070      int c = 40 + bgr;
00071      _serial.printf("\033[%dm", c);
00072 }
00073