Midhat Hodo / SPI_TFT_ILI9341

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Dependents:   projekat

TextDisplay.cpp@0:b633b9a36f84, 2018-06-28 (annotated)

Committer:
2018US_MidhatHodo
Date:
Thu Jun 28 10:24:19 2018 +0000
Revision:
0:b633b9a36f84
\

Who changed what in which revision?

UserRevisionLine numberNew contents of line
2018US_MidhatHodo 0:b633b9a36f84 1 /* mbed TextDisplay Display Library Base Class
2018US_MidhatHodo 0:b633b9a36f84 2 * Copyright (c) 2007-2009 sford
2018US_MidhatHodo 0:b633b9a36f84 3 * Released under the MIT License: http://mbed.org/license/mit
2018US_MidhatHodo 0:b633b9a36f84 4 */
2018US_MidhatHodo 0:b633b9a36f84 5
2018US_MidhatHodo 0:b633b9a36f84 6 #include "TextDisplay.h"
2018US_MidhatHodo 0:b633b9a36f84 7
2018US_MidhatHodo 0:b633b9a36f84 8 TextDisplay::TextDisplay(const char *name) : Stream(name){
2018US_MidhatHodo 0:b633b9a36f84 9 _row = 0;
2018US_MidhatHodo 0:b633b9a36f84 10 _column = 0;
2018US_MidhatHodo 0:b633b9a36f84 11 if (name == NULL) {
2018US_MidhatHodo 0:b633b9a36f84 12 _path = NULL;
2018US_MidhatHodo 0:b633b9a36f84 13 } else {
2018US_MidhatHodo 0:b633b9a36f84 14 _path = new char[strlen(name) + 2];
2018US_MidhatHodo 0:b633b9a36f84 15 sprintf(_path, "/%s", name);
2018US_MidhatHodo 0:b633b9a36f84 16 }
2018US_MidhatHodo 0:b633b9a36f84 17 }
2018US_MidhatHodo 0:b633b9a36f84 18
2018US_MidhatHodo 0:b633b9a36f84 19 int TextDisplay::_putc(int value) {
2018US_MidhatHodo 0:b633b9a36f84 20 if(value == '\n') {
2018US_MidhatHodo 0:b633b9a36f84 21 _column = 0;
2018US_MidhatHodo 0:b633b9a36f84 22 _row++;
2018US_MidhatHodo 0:b633b9a36f84 23 if(_row >= rows()) {
2018US_MidhatHodo 0:b633b9a36f84 24 _row = 0;
2018US_MidhatHodo 0:b633b9a36f84 25 }
2018US_MidhatHodo 0:b633b9a36f84 26 } else {
2018US_MidhatHodo 0:b633b9a36f84 27 character(_column, _row, value);
2018US_MidhatHodo 0:b633b9a36f84 28 _column++;
2018US_MidhatHodo 0:b633b9a36f84 29 if(_column >= columns()) {
2018US_MidhatHodo 0:b633b9a36f84 30 _column = 0;
2018US_MidhatHodo 0:b633b9a36f84 31 _row++;
2018US_MidhatHodo 0:b633b9a36f84 32 if(_row >= rows()) {
2018US_MidhatHodo 0:b633b9a36f84 33 _row = 0;
2018US_MidhatHodo 0:b633b9a36f84 34 }
2018US_MidhatHodo 0:b633b9a36f84 35 }
2018US_MidhatHodo 0:b633b9a36f84 36 }
2018US_MidhatHodo 0:b633b9a36f84 37 return value;
2018US_MidhatHodo 0:b633b9a36f84 38 }
2018US_MidhatHodo 0:b633b9a36f84 39
2018US_MidhatHodo 0:b633b9a36f84 40 // crude cls implementation, should generally be overwritten in derived class
2018US_MidhatHodo 0:b633b9a36f84 41 void TextDisplay::cls() {
2018US_MidhatHodo 0:b633b9a36f84 42 locate(0, 0);
2018US_MidhatHodo 0:b633b9a36f84 43 for(int i=0; i<columns()*rows(); i++) {
2018US_MidhatHodo 0:b633b9a36f84 44 putc(' ');
2018US_MidhatHodo 0:b633b9a36f84 45 }
2018US_MidhatHodo 0:b633b9a36f84 46 }
2018US_MidhatHodo 0:b633b9a36f84 47
2018US_MidhatHodo 0:b633b9a36f84 48 void TextDisplay::locate(int column, int row) {
2018US_MidhatHodo 0:b633b9a36f84 49 _column = column;
2018US_MidhatHodo 0:b633b9a36f84 50 _row = row;
2018US_MidhatHodo 0:b633b9a36f84 51 }
2018US_MidhatHodo 0:b633b9a36f84 52
2018US_MidhatHodo 0:b633b9a36f84 53 int TextDisplay::_getc() {
2018US_MidhatHodo 0:b633b9a36f84 54 return -1;
2018US_MidhatHodo 0:b633b9a36f84 55 }
2018US_MidhatHodo 0:b633b9a36f84 56
2018US_MidhatHodo 0:b633b9a36f84 57 void TextDisplay::foreground(uint16_t colour) {
2018US_MidhatHodo 0:b633b9a36f84 58 _foreground = colour;
2018US_MidhatHodo 0:b633b9a36f84 59 }
2018US_MidhatHodo 0:b633b9a36f84 60
2018US_MidhatHodo 0:b633b9a36f84 61 void TextDisplay::background(uint16_t colour) {
2018US_MidhatHodo 0:b633b9a36f84 62 _background = colour;
2018US_MidhatHodo 0:b633b9a36f84 63 }
2018US_MidhatHodo 0:b633b9a36f84 64
2018US_MidhatHodo 0:b633b9a36f84 65 bool TextDisplay::claim (FILE *stream) {
2018US_MidhatHodo 0:b633b9a36f84 66 if ( _path == NULL) {
2018US_MidhatHodo 0:b633b9a36f84 67 fprintf(stderr, "claim requires a name to be given in the instantioator of the TextDisplay instance!\r\n");
2018US_MidhatHodo 0:b633b9a36f84 68 return false;
2018US_MidhatHodo 0:b633b9a36f84 69 }
2018US_MidhatHodo 0:b633b9a36f84 70 if (freopen(_path, "w", stream) == NULL) {
2018US_MidhatHodo 0:b633b9a36f84 71 // Failed, should not happen
2018US_MidhatHodo 0:b633b9a36f84 72 return false;
2018US_MidhatHodo 0:b633b9a36f84 73 }
2018US_MidhatHodo 0:b633b9a36f84 74 // make sure we use line buffering
2018US_MidhatHodo 0:b633b9a36f84 75 setvbuf(stdout, NULL, _IOLBF, columns());
2018US_MidhatHodo 0:b633b9a36f84 76 return true;
2018US_MidhatHodo 0:b633b9a36f84 77 }