Kevin Braun / Mbed 2 deprecated TFTdisp-104

A general demonstration color etch-a-sketch program using the QVGA TFT with HX8347D controller, Orange Board. Saves touchscreen calibaration data saved in tft.ini. Creates /local/tft.ini if missing. Also included is an Ethernet NTP client to update the RTC. Assumes all other Orange Board devices attached: Text LCD, SDHC Flash, Ethernet.

Dependencies:   EthernetNetIf TextLCD mbed

SPI_TFT/TextDisplay.cpp@0:e065ca40f28a, 2011-08-01 (annotated)

Committer:
loopsva
Date:
Mon Aug 01 16:29:58 2011 +0000
Revision:
0:e065ca40f28a
Inititial Release

Who changed what in which revision?

UserRevisionLine numberNew contents of line
loopsva 0:e065ca40f28a 1 /* mbed TextDisplay Display Library Base Class
loopsva 0:e065ca40f28a 2 * Copyright (c) 2007-2009 sford
loopsva 0:e065ca40f28a 3 * Released under the MIT License: http://mbed.org/license/mit
loopsva 0:e065ca40f28a 4 */
loopsva 0:e065ca40f28a 5
loopsva 0:e065ca40f28a 6 #include "TextDisplay.h"
loopsva 0:e065ca40f28a 7
loopsva 0:e065ca40f28a 8 TextDisplay::TextDisplay(const char *name) : Stream(name){
loopsva 0:e065ca40f28a 9 _row = 0;
loopsva 0:e065ca40f28a 10 _column = 0;
loopsva 0:e065ca40f28a 11 if (name == NULL) {
loopsva 0:e065ca40f28a 12 _path = NULL;
loopsva 0:e065ca40f28a 13 } else {
loopsva 0:e065ca40f28a 14 _path = new char[strlen(name) + 2];
loopsva 0:e065ca40f28a 15 sprintf(_path, "/%s", name);
loopsva 0:e065ca40f28a 16 }
loopsva 0:e065ca40f28a 17 }
loopsva 0:e065ca40f28a 18
loopsva 0:e065ca40f28a 19 int TextDisplay::_putc(int value) {
loopsva 0:e065ca40f28a 20 if(value == '\n') {
loopsva 0:e065ca40f28a 21 _column = 0;
loopsva 0:e065ca40f28a 22 _row++;
loopsva 0:e065ca40f28a 23 if(_row >= rows()) {
loopsva 0:e065ca40f28a 24 _row = 0;
loopsva 0:e065ca40f28a 25 }
loopsva 0:e065ca40f28a 26 } else {
loopsva 0:e065ca40f28a 27 character(_column, _row, value);
loopsva 0:e065ca40f28a 28 _column++;
loopsva 0:e065ca40f28a 29 if(_column >= columns()) {
loopsva 0:e065ca40f28a 30 _column = 0;
loopsva 0:e065ca40f28a 31 _row++;
loopsva 0:e065ca40f28a 32 if(_row >= rows()) {
loopsva 0:e065ca40f28a 33 _row = 0;
loopsva 0:e065ca40f28a 34 }
loopsva 0:e065ca40f28a 35 }
loopsva 0:e065ca40f28a 36 }
loopsva 0:e065ca40f28a 37 return value;
loopsva 0:e065ca40f28a 38 }
loopsva 0:e065ca40f28a 39
loopsva 0:e065ca40f28a 40 // crude cls implementation, should generally be overwritten in derived class
loopsva 0:e065ca40f28a 41 void TextDisplay::cls() {
loopsva 0:e065ca40f28a 42 locate(0, 0);
loopsva 0:e065ca40f28a 43 for(int i=0; i<columns()*rows(); i++) {
loopsva 0:e065ca40f28a 44 putc(' ');
loopsva 0:e065ca40f28a 45 }
loopsva 0:e065ca40f28a 46 }
loopsva 0:e065ca40f28a 47
loopsva 0:e065ca40f28a 48 void TextDisplay::locate(int column, int row) {
loopsva 0:e065ca40f28a 49 _column = column;
loopsva 0:e065ca40f28a 50 _row = row;
loopsva 0:e065ca40f28a 51 }
loopsva 0:e065ca40f28a 52
loopsva 0:e065ca40f28a 53 int TextDisplay::_getc() {
loopsva 0:e065ca40f28a 54 return -1;
loopsva 0:e065ca40f28a 55 }
loopsva 0:e065ca40f28a 56
loopsva 0:e065ca40f28a 57 void TextDisplay::foreground(uint16_t colour) {
loopsva 0:e065ca40f28a 58 _foreground = colour;
loopsva 0:e065ca40f28a 59 }
loopsva 0:e065ca40f28a 60
loopsva 0:e065ca40f28a 61 void TextDisplay::background(uint16_t colour) {
loopsva 0:e065ca40f28a 62 _background = colour;
loopsva 0:e065ca40f28a 63 }
loopsva 0:e065ca40f28a 64
loopsva 0:e065ca40f28a 65 bool TextDisplay::claim (FILE *stream) {
loopsva 0:e065ca40f28a 66 if ( _path == NULL) {
loopsva 0:e065ca40f28a 67 fprintf(stderr, "claim requires a name to be given in the instantioator of the TextDisplay instance!\r\n");
loopsva 0:e065ca40f28a 68 return false;
loopsva 0:e065ca40f28a 69 }
loopsva 0:e065ca40f28a 70 if (freopen(_path, "w", stream) == NULL) {
loopsva 0:e065ca40f28a 71 // Failed, should not happen
loopsva 0:e065ca40f28a 72 return false;
loopsva 0:e065ca40f28a 73 }
loopsva 0:e065ca40f28a 74 // make sure we use line buffering
loopsva 0:e065ca40f28a 75 setvbuf(stdout, NULL, _IOLBF, columns());
loopsva 0:e065ca40f28a 76 return true;
loopsva 0:e065ca40f28a 77 }