Sérgio Natan / Mbed OS luva_tatil_repo

teste

Dependencies:   BurstSPI Fonts

TextDisplay.cpp@0:cf17b1f16335, 2017-10-24 (annotated)

Committer:
sergionatan
Date:
Tue Oct 24 20:12:54 2017 +0000
Revision:
0:cf17b1f16335
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sergionatan 0:cf17b1f16335 1 // ST7735 8 Bit SPI Library
sergionatan 0:cf17b1f16335 2
sergionatan 0:cf17b1f16335 3 #include "TextDisplay.h"
sergionatan 0:cf17b1f16335 4
sergionatan 0:cf17b1f16335 5 TextDisplay::TextDisplay(const char *name) : Stream(name){
sergionatan 0:cf17b1f16335 6 _row = 0;
sergionatan 0:cf17b1f16335 7 _column = 0;
sergionatan 0:cf17b1f16335 8 if (name == NULL) {
sergionatan 0:cf17b1f16335 9 _path = NULL;
sergionatan 0:cf17b1f16335 10 } else {
sergionatan 0:cf17b1f16335 11 _path = new char[strlen(name) + 2];
sergionatan 0:cf17b1f16335 12 sprintf(_path, "/%s", name);
sergionatan 0:cf17b1f16335 13 }
sergionatan 0:cf17b1f16335 14 }
sergionatan 0:cf17b1f16335 15
sergionatan 0:cf17b1f16335 16 int TextDisplay::_putc(int value) {
sergionatan 0:cf17b1f16335 17 if(value == '\n') {
sergionatan 0:cf17b1f16335 18 _column = 0;
sergionatan 0:cf17b1f16335 19 _row++;
sergionatan 0:cf17b1f16335 20 if(_row >= rows()) {
sergionatan 0:cf17b1f16335 21 _row = 0;
sergionatan 0:cf17b1f16335 22 }
sergionatan 0:cf17b1f16335 23 } else {
sergionatan 0:cf17b1f16335 24 character(_column, _row, value);
sergionatan 0:cf17b1f16335 25 _column++;
sergionatan 0:cf17b1f16335 26 if(_column >= columns()) {
sergionatan 0:cf17b1f16335 27 _column = 0;
sergionatan 0:cf17b1f16335 28 _row++;
sergionatan 0:cf17b1f16335 29 if(_row >= rows()) {
sergionatan 0:cf17b1f16335 30 _row = 0;
sergionatan 0:cf17b1f16335 31 }
sergionatan 0:cf17b1f16335 32 }
sergionatan 0:cf17b1f16335 33 }
sergionatan 0:cf17b1f16335 34 return value;
sergionatan 0:cf17b1f16335 35 }
sergionatan 0:cf17b1f16335 36 void TextDisplay::cls() {
sergionatan 0:cf17b1f16335 37 locate(0, 0);
sergionatan 0:cf17b1f16335 38 for(int i=0; i<columns()*rows(); i++) {
sergionatan 0:cf17b1f16335 39 putc(' ');
sergionatan 0:cf17b1f16335 40 }
sergionatan 0:cf17b1f16335 41 }
sergionatan 0:cf17b1f16335 42 void TextDisplay::locate(int column, int row) {
sergionatan 0:cf17b1f16335 43 _column = column;
sergionatan 0:cf17b1f16335 44 _row = row;
sergionatan 0:cf17b1f16335 45 }
sergionatan 0:cf17b1f16335 46 int TextDisplay::_getc() {
sergionatan 0:cf17b1f16335 47 return -1;
sergionatan 0:cf17b1f16335 48 }
sergionatan 0:cf17b1f16335 49 void TextDisplay::foreground(uint16_t colour) {
sergionatan 0:cf17b1f16335 50 _foreground = colour;
sergionatan 0:cf17b1f16335 51 }
sergionatan 0:cf17b1f16335 52 void TextDisplay::background(uint16_t colour) {
sergionatan 0:cf17b1f16335 53 _background = colour;
sergionatan 0:cf17b1f16335 54 }
sergionatan 0:cf17b1f16335 55 bool TextDisplay::claim (FILE *stream) {
sergionatan 0:cf17b1f16335 56 if ( _path == NULL) {
sergionatan 0:cf17b1f16335 57 fprintf(stderr, "claim requires a name to be given in the instantioator of the TextDisplay instance!\r\n");
sergionatan 0:cf17b1f16335 58 return false;
sergionatan 0:cf17b1f16335 59 }
sergionatan 0:cf17b1f16335 60 if (freopen(_path, "w", stream) == NULL) {
sergionatan 0:cf17b1f16335 61 // Failed, should not happen
sergionatan 0:cf17b1f16335 62 return false;
sergionatan 0:cf17b1f16335 63 }
sergionatan 0:cf17b1f16335 64 // make sure we use line buffering
sergionatan 0:cf17b1f16335 65 setvbuf(stdout, NULL, _IOLBF, columns());
sergionatan 0:cf17b1f16335 66 return true;
sergionatan 0:cf17b1f16335 67 }