Louis Lagendijk L / TextDisplays

A TextDisplay driver that supports graphical displays using on of the SED133x conrtrolers. Allows stdout and stderr output to be redirected to the display.

TextDisplay.cpp@0:9e72c57b16fd, 2011-01-08 (annotated)

Committer:
llagendijk
Date:
Sat Jan 08 22:24:00 2011 +0000
Revision:
0:9e72c57b16fd
Child:
1:18c56f038905
Included first version of a SED133x driver

Who changed what in which revision?

UserRevisionLine numberNew contents of line
llagendijk 0:9e72c57b16fd 1 /* mbed TextDisplay Display Library Base Class
llagendijk 0:9e72c57b16fd 2 * Copyright (c) 2007-2009 sford
llagendijk 0:9e72c57b16fd 3 * Released under the MIT License: http://mbed.org/license/mit
llagendijk 0:9e72c57b16fd 4 */
llagendijk 0:9e72c57b16fd 5
llagendijk 0:9e72c57b16fd 6 #include "TextDisplay.h"
llagendijk 0:9e72c57b16fd 7
llagendijk 0:9e72c57b16fd 8 TextDisplay::TextDisplay() {
llagendijk 0:9e72c57b16fd 9 _row = 0;
llagendijk 0:9e72c57b16fd 10 _column = 0;
llagendijk 0:9e72c57b16fd 11 }
llagendijk 0:9e72c57b16fd 12
llagendijk 0:9e72c57b16fd 13 int TextDisplay::_putc(int value) {
llagendijk 0:9e72c57b16fd 14 if(value == '\n') {
llagendijk 0:9e72c57b16fd 15 _column = 0;
llagendijk 0:9e72c57b16fd 16 _row++;
llagendijk 0:9e72c57b16fd 17 if(_row >= rows()) {
llagendijk 0:9e72c57b16fd 18 _row = 0;
llagendijk 0:9e72c57b16fd 19 }
llagendijk 0:9e72c57b16fd 20 } else {
llagendijk 0:9e72c57b16fd 21 character(_column, _row, value);
llagendijk 0:9e72c57b16fd 22 _column++;
llagendijk 0:9e72c57b16fd 23 if(_column >= columns()) {
llagendijk 0:9e72c57b16fd 24 _column = 0;
llagendijk 0:9e72c57b16fd 25 _row++;
llagendijk 0:9e72c57b16fd 26 if(_row >= rows()) {
llagendijk 0:9e72c57b16fd 27 _row = 0;
llagendijk 0:9e72c57b16fd 28 }
llagendijk 0:9e72c57b16fd 29 }
llagendijk 0:9e72c57b16fd 30 }
llagendijk 0:9e72c57b16fd 31 return value;
llagendijk 0:9e72c57b16fd 32 }
llagendijk 0:9e72c57b16fd 33
llagendijk 0:9e72c57b16fd 34 // crude cls implementation, should generally be overwritten in derived class
llagendijk 0:9e72c57b16fd 35 void TextDisplay::cls() {
llagendijk 0:9e72c57b16fd 36 locate(0, 0);
llagendijk 0:9e72c57b16fd 37 for(int i=0; i<columns()*rows(); i++) {
llagendijk 0:9e72c57b16fd 38 putc(' ');
llagendijk 0:9e72c57b16fd 39 }
llagendijk 0:9e72c57b16fd 40 }
llagendijk 0:9e72c57b16fd 41
llagendijk 0:9e72c57b16fd 42 void TextDisplay::locate(uint16_t column, uint16_t row) {
llagendijk 0:9e72c57b16fd 43 _column = column;
llagendijk 0:9e72c57b16fd 44 _row = row;
llagendijk 0:9e72c57b16fd 45 }
llagendijk 0:9e72c57b16fd 46
llagendijk 0:9e72c57b16fd 47 int TextDisplay::_getc() {
llagendijk 0:9e72c57b16fd 48 return -1;
llagendijk 0:9e72c57b16fd 49 }
llagendijk 0:9e72c57b16fd 50
llagendijk 0:9e72c57b16fd 51 void TextDisplay::foreground(uint32_t colour) {
llagendijk 0:9e72c57b16fd 52 _foreground = colour;
llagendijk 0:9e72c57b16fd 53 }
llagendijk 0:9e72c57b16fd 54
llagendijk 0:9e72c57b16fd 55 void TextDisplay::background(uint32_t colour) {
llagendijk 0:9e72c57b16fd 56 _background = colour;
llagendijk 0:9e72c57b16fd 57 }