Lukasz Uszko / Mbed OS DiffPressureMeter

Differential pressure meter

Dependencies:   TFT_Touch_WaveShare

SPI_TFT/TextDisplay.cpp@1:c311d5f59c8b, 2018-04-03 (annotated)

Committer:
igbt6
Date:
Tue Apr 03 20:13:35 2018 +0000
Revision:
1:c311d5f59c8b
Parent:
0:619824763516 
Differential pressure meter

Who changed what in which revision?

UserRevisionLine numberNew contents of line
igbt6 0:619824763516 1 /* mbed TextDisplay Display Library Base Class
igbt6 0:619824763516 2 * Copyright (c) 2007-2009 sford
igbt6 0:619824763516 3 * Released under the MIT License: http://mbed.org/license/mit
igbt6 0:619824763516 4 */
igbt6 0:619824763516 5
igbt6 0:619824763516 6 #include "TextDisplay.h"
igbt6 0:619824763516 7
igbt6 0:619824763516 8 TextDisplay::TextDisplay(const char *name) : Stream(name){
igbt6 0:619824763516 9 _row = 0;
igbt6 0:619824763516 10 _column = 0;
igbt6 0:619824763516 11 if (name == NULL) {
igbt6 0:619824763516 12 _path = NULL;
igbt6 0:619824763516 13 } else {
igbt6 0:619824763516 14 _path = new char[strlen(name) + 2];
igbt6 0:619824763516 15 sprintf(_path, "/%s", name);
igbt6 0:619824763516 16 }
igbt6 0:619824763516 17 }
igbt6 0:619824763516 18
igbt6 0:619824763516 19 int TextDisplay::_putc(int value) {
igbt6 0:619824763516 20 if(value == '\n') {
igbt6 0:619824763516 21 _column = 0;
igbt6 0:619824763516 22 _row++;
igbt6 0:619824763516 23 if(_row >= rows()) {
igbt6 0:619824763516 24 _row = 0;
igbt6 0:619824763516 25 }
igbt6 0:619824763516 26 } else {
igbt6 0:619824763516 27 character(_column, _row, value);
igbt6 0:619824763516 28 _column++;
igbt6 0:619824763516 29 if(_column >= columns()) {
igbt6 0:619824763516 30 _column = 0;
igbt6 0:619824763516 31 _row++;
igbt6 0:619824763516 32 if(_row >= rows()) {
igbt6 0:619824763516 33 _row = 0;
igbt6 0:619824763516 34 }
igbt6 0:619824763516 35 }
igbt6 0:619824763516 36 }
igbt6 0:619824763516 37 return value;
igbt6 0:619824763516 38 }
igbt6 0:619824763516 39
igbt6 0:619824763516 40 // crude cls implementation, should generally be overwritten in derived class
igbt6 0:619824763516 41 void TextDisplay::cls() {
igbt6 0:619824763516 42 locate(0, 0);
igbt6 0:619824763516 43 for(int i=0; i<columns()*rows(); i++) {
igbt6 0:619824763516 44 putc(' ');
igbt6 0:619824763516 45 }
igbt6 0:619824763516 46 }
igbt6 0:619824763516 47
igbt6 0:619824763516 48 void TextDisplay::locate(int column, int row) {
igbt6 0:619824763516 49 _column = column;
igbt6 0:619824763516 50 _row = row;
igbt6 0:619824763516 51 }
igbt6 0:619824763516 52
igbt6 0:619824763516 53 int TextDisplay::_getc() {
igbt6 0:619824763516 54 return -1;
igbt6 0:619824763516 55 }
igbt6 0:619824763516 56
igbt6 0:619824763516 57 void TextDisplay::foreground(uint16_t colour) {
igbt6 0:619824763516 58 _foreground = colour;
igbt6 0:619824763516 59 }
igbt6 0:619824763516 60
igbt6 0:619824763516 61 void TextDisplay::background(uint16_t colour) {
igbt6 0:619824763516 62 _background = colour;
igbt6 0:619824763516 63 }
igbt6 0:619824763516 64
igbt6 0:619824763516 65 bool TextDisplay::claim (FILE *stream) {
igbt6 0:619824763516 66 if ( _path == NULL) {
igbt6 0:619824763516 67 fprintf(stderr, "claim requires a name to be given in the instantioator of the TextDisplay instance!\r\n");
igbt6 0:619824763516 68 return false;
igbt6 0:619824763516 69 }
igbt6 0:619824763516 70 if (freopen(_path, "w", stream) == NULL) {
igbt6 0:619824763516 71 // Failed, should not happen
igbt6 0:619824763516 72 return false;
igbt6 0:619824763516 73 }
igbt6 0:619824763516 74 // make sure we use line buffering
igbt6 0:619824763516 75 setvbuf(stdout, NULL, _IOLBF, columns());
igbt6 0:619824763516 76 return true;
igbt6 0:619824763516 77 }