Paul Staron / HY-1_8TFT_ST7735

Chinese module HY-1.8 SPI TFT lcd Display library.

Dependencies:   BurstSPI

Dependents:   KL25Z_DCF77_HY-1_8LCD

Fork of HY-1_8TFT_ST7735 by Paul Staron

TextDisplay.cpp@2:26149011665e, 2015-10-11 (annotated)

Committer:
star297
Date:
Sun Oct 11 21:30:26 2015 +0000
Revision:
2:26149011665e
Parent:
0:35a1964228b4 
updated BurstSPI

Who changed what in which revision?

UserRevisionLine numberNew contents of line
star297 0:35a1964228b4 1 // ST7735 8 Bit SPI Library
star297 0:35a1964228b4 2
star297 0:35a1964228b4 3 #include "TextDisplay.h"
star297 0:35a1964228b4 4
star297 0:35a1964228b4 5 TextDisplay::TextDisplay(const char *name) : Stream(name){
star297 0:35a1964228b4 6 _row = 0;
star297 0:35a1964228b4 7 _column = 0;
star297 0:35a1964228b4 8 if (name == NULL) {
star297 0:35a1964228b4 9 _path = NULL;
star297 0:35a1964228b4 10 } else {
star297 0:35a1964228b4 11 _path = new char[strlen(name) + 2];
star297 0:35a1964228b4 12 sprintf(_path, "/%s", name);
star297 0:35a1964228b4 13 }
star297 0:35a1964228b4 14 }
star297 0:35a1964228b4 15
star297 0:35a1964228b4 16 int TextDisplay::_putc(int value) {
star297 0:35a1964228b4 17 if(value == '\n') {
star297 0:35a1964228b4 18 _column = 0;
star297 0:35a1964228b4 19 _row++;
star297 0:35a1964228b4 20 if(_row >= rows()) {
star297 0:35a1964228b4 21 _row = 0;
star297 0:35a1964228b4 22 }
star297 0:35a1964228b4 23 } else {
star297 0:35a1964228b4 24 character(_column, _row, value);
star297 0:35a1964228b4 25 _column++;
star297 0:35a1964228b4 26 if(_column >= columns()) {
star297 0:35a1964228b4 27 _column = 0;
star297 0:35a1964228b4 28 _row++;
star297 0:35a1964228b4 29 if(_row >= rows()) {
star297 0:35a1964228b4 30 _row = 0;
star297 0:35a1964228b4 31 }
star297 0:35a1964228b4 32 }
star297 0:35a1964228b4 33 }
star297 0:35a1964228b4 34 return value;
star297 0:35a1964228b4 35 }
star297 0:35a1964228b4 36 void TextDisplay::cls() {
star297 0:35a1964228b4 37 locate(0, 0);
star297 0:35a1964228b4 38 for(int i=0; i<columns()*rows(); i++) {
star297 0:35a1964228b4 39 putc(' ');
star297 0:35a1964228b4 40 }
star297 0:35a1964228b4 41 }
star297 0:35a1964228b4 42 void TextDisplay::locate(int column, int row) {
star297 0:35a1964228b4 43 _column = column;
star297 0:35a1964228b4 44 _row = row;
star297 0:35a1964228b4 45 }
star297 0:35a1964228b4 46 int TextDisplay::_getc() {
star297 0:35a1964228b4 47 return -1;
star297 0:35a1964228b4 48 }
star297 0:35a1964228b4 49 void TextDisplay::foreground(uint16_t colour) {
star297 0:35a1964228b4 50 _foreground = colour;
star297 0:35a1964228b4 51 }
star297 0:35a1964228b4 52 void TextDisplay::background(uint16_t colour) {
star297 0:35a1964228b4 53 _background = colour;
star297 0:35a1964228b4 54 }
star297 0:35a1964228b4 55 bool TextDisplay::claim (FILE *stream) {
star297 0:35a1964228b4 56 if ( _path == NULL) {
star297 0:35a1964228b4 57 fprintf(stderr, "claim requires a name to be given in the instantioator of the TextDisplay instance!\r\n");
star297 0:35a1964228b4 58 return false;
star297 0:35a1964228b4 59 }
star297 0:35a1964228b4 60 if (freopen(_path, "w", stream) == NULL) {
star297 0:35a1964228b4 61 // Failed, should not happen
star297 0:35a1964228b4 62 return false;
star297 0:35a1964228b4 63 }
star297 0:35a1964228b4 64 // make sure we use line buffering
star297 0:35a1964228b4 65 setvbuf(stdout, NULL, _IOLBF, columns());
star297 0:35a1964228b4 66 return true;
star297 0:35a1964228b4 67 }