Lee Kai Xuan / mbed-os

mbed-os

Fork of mbed-os by erkin yucel

features/unsupported/tests/mbed/freopen/TextDisplay.cpp@0:f269e3021894, 2016-10-23 (annotated)

Committer:
elessair
Date:
Sun Oct 23 15:10:02 2016 +0000
Revision:
0:f269e3021894
Initial commit

Who changed what in which revision?

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elessair 0:f269e3021894 1 /* mbed TextDisplay Display Library Base Class
elessair 0:f269e3021894 2 * Copyright (c) 2007-2009 sford
elessair 0:f269e3021894 3 * Released under the MIT License: http://mbed.org/license/mit
elessair 0:f269e3021894 4 */
elessair 0:f269e3021894 5
elessair 0:f269e3021894 6 #include "TextDisplay.h"
elessair 0:f269e3021894 7
elessair 0:f269e3021894 8 TextDisplay::TextDisplay(const char *name) : Stream(name) {
elessair 0:f269e3021894 9 _row = 0;
elessair 0:f269e3021894 10 _column = 0;
elessair 0:f269e3021894 11 }
elessair 0:f269e3021894 12
elessair 0:f269e3021894 13 int TextDisplay::_putc(int value) {
elessair 0:f269e3021894 14 if(value == '\n') {
elessair 0:f269e3021894 15 _column = 0;
elessair 0:f269e3021894 16 _row++;
elessair 0:f269e3021894 17 if(_row >= rows()) {
elessair 0:f269e3021894 18 _row = 0;
elessair 0:f269e3021894 19 }
elessair 0:f269e3021894 20 } else {
elessair 0:f269e3021894 21 character(_column, _row, value);
elessair 0:f269e3021894 22 _column++;
elessair 0:f269e3021894 23 if(_column >= columns()) {
elessair 0:f269e3021894 24 _column = 0;
elessair 0:f269e3021894 25 _row++;
elessair 0:f269e3021894 26 if(_row >= rows()) {
elessair 0:f269e3021894 27 _row = 0;
elessair 0:f269e3021894 28 }
elessair 0:f269e3021894 29 }
elessair 0:f269e3021894 30 }
elessair 0:f269e3021894 31 return value;
elessair 0:f269e3021894 32 }
elessair 0:f269e3021894 33
elessair 0:f269e3021894 34 // crude cls implementation, should generally be overwritten in derived class
elessair 0:f269e3021894 35 void TextDisplay::cls() {
elessair 0:f269e3021894 36 locate(0, 0);
elessair 0:f269e3021894 37 for(int i=0; i<columns()*rows(); i++) {
elessair 0:f269e3021894 38 putc(' ');
elessair 0:f269e3021894 39 }
elessair 0:f269e3021894 40 }
elessair 0:f269e3021894 41
elessair 0:f269e3021894 42 void TextDisplay::locate(int column, int row) {
elessair 0:f269e3021894 43 _column = column;
elessair 0:f269e3021894 44 _row = row;
elessair 0:f269e3021894 45 }
elessair 0:f269e3021894 46
elessair 0:f269e3021894 47 int TextDisplay::_getc() {
elessair 0:f269e3021894 48 return -1;
elessair 0:f269e3021894 49 }
elessair 0:f269e3021894 50
elessair 0:f269e3021894 51 void TextDisplay::foreground(int colour) {
elessair 0:f269e3021894 52 _foreground = colour;
elessair 0:f269e3021894 53 }
elessair 0:f269e3021894 54
elessair 0:f269e3021894 55 void TextDisplay::background(int colour) {
elessair 0:f269e3021894 56 _background = colour;
elessair 0:f269e3021894 57 }