David Smart / RA8875 Featured

Library to control a Graphics TFT connected to 4-wire SPI - revised for the Raio RA8875 Display Controller.

Dependents:   FRDM_RA8875_mPaint RA8875_Demo RA8875_KeyPadDemo SignalGenerator ... more

Fork of SPI_TFT by Peter Drescher

See Components - RA8875 Based Display

Enhanced touch-screen support - where it previous supported both the Resistive Touch and Capacitive Touch based on the FT5206 Touch Controller, now it also has support for the GSL1680 Touch Controller.

Offline Help Manual (Windows chm)

/media/uploads/WiredHome/ra8875.zip.bin (download, rename to .zip and unzip)

TextDisplay.cpp@0:de9d1462a835, 2012-09-10 (annotated)

Committer:
dreschpe
Date:
Mon Sep 10 19:23:26 2012 +0000
Revision:
0:de9d1462a835
Child:
19:3f82c1161fd2
[mbed] converted /TFT/SPI_TFT

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dreschpe 0:de9d1462a835 1 /* mbed TextDisplay Display Library Base Class
dreschpe 0:de9d1462a835 2 * Copyright (c) 2007-2009 sford
dreschpe 0:de9d1462a835 3 * Released under the MIT License: http://mbed.org/license/mit
dreschpe 0:de9d1462a835 4 */
dreschpe 0:de9d1462a835 5
dreschpe 0:de9d1462a835 6 #include "TextDisplay.h"
dreschpe 0:de9d1462a835 7
dreschpe 0:de9d1462a835 8 TextDisplay::TextDisplay(const char *name) : Stream(name){
dreschpe 0:de9d1462a835 9 _row = 0;
dreschpe 0:de9d1462a835 10 _column = 0;
dreschpe 0:de9d1462a835 11 if (name == NULL) {
dreschpe 0:de9d1462a835 12 _path = NULL;
dreschpe 0:de9d1462a835 13 } else {
dreschpe 0:de9d1462a835 14 _path = new char[strlen(name) + 2];
dreschpe 0:de9d1462a835 15 sprintf(_path, "/%s", name);
dreschpe 0:de9d1462a835 16 }
dreschpe 0:de9d1462a835 17 }
dreschpe 0:de9d1462a835 18
dreschpe 0:de9d1462a835 19 int TextDisplay::_putc(int value) {
dreschpe 0:de9d1462a835 20 if(value == '\n') {
dreschpe 0:de9d1462a835 21 _column = 0;
dreschpe 0:de9d1462a835 22 _row++;
dreschpe 0:de9d1462a835 23 if(_row >= rows()) {
dreschpe 0:de9d1462a835 24 _row = 0;
dreschpe 0:de9d1462a835 25 }
dreschpe 0:de9d1462a835 26 } else {
dreschpe 0:de9d1462a835 27 character(_column, _row, value);
dreschpe 0:de9d1462a835 28 _column++;
dreschpe 0:de9d1462a835 29 if(_column >= columns()) {
dreschpe 0:de9d1462a835 30 _column = 0;
dreschpe 0:de9d1462a835 31 _row++;
dreschpe 0:de9d1462a835 32 if(_row >= rows()) {
dreschpe 0:de9d1462a835 33 _row = 0;
dreschpe 0:de9d1462a835 34 }
dreschpe 0:de9d1462a835 35 }
dreschpe 0:de9d1462a835 36 }
dreschpe 0:de9d1462a835 37 return value;
dreschpe 0:de9d1462a835 38 }
dreschpe 0:de9d1462a835 39
dreschpe 0:de9d1462a835 40 // crude cls implementation, should generally be overwritten in derived class
dreschpe 0:de9d1462a835 41 void TextDisplay::cls() {
dreschpe 0:de9d1462a835 42 locate(0, 0);
dreschpe 0:de9d1462a835 43 for(int i=0; i<columns()*rows(); i++) {
dreschpe 0:de9d1462a835 44 putc(' ');
dreschpe 0:de9d1462a835 45 }
dreschpe 0:de9d1462a835 46 }
dreschpe 0:de9d1462a835 47
dreschpe 0:de9d1462a835 48 void TextDisplay::locate(int column, int row) {
dreschpe 0:de9d1462a835 49 _column = column;
dreschpe 0:de9d1462a835 50 _row = row;
dreschpe 0:de9d1462a835 51 }
dreschpe 0:de9d1462a835 52
dreschpe 0:de9d1462a835 53 int TextDisplay::_getc() {
dreschpe 0:de9d1462a835 54 return -1;
dreschpe 0:de9d1462a835 55 }
dreschpe 0:de9d1462a835 56
dreschpe 0:de9d1462a835 57 void TextDisplay::foreground(uint16_t colour) {
dreschpe 0:de9d1462a835 58 _foreground = colour;
dreschpe 0:de9d1462a835 59 }
dreschpe 0:de9d1462a835 60
dreschpe 0:de9d1462a835 61 void TextDisplay::background(uint16_t colour) {
dreschpe 0:de9d1462a835 62 _background = colour;
dreschpe 0:de9d1462a835 63 }
dreschpe 0:de9d1462a835 64
dreschpe 0:de9d1462a835 65 bool TextDisplay::claim (FILE *stream) {
dreschpe 0:de9d1462a835 66 if ( _path == NULL) {
dreschpe 0:de9d1462a835 67 fprintf(stderr, "claim requires a name to be given in the instantioator of the TextDisplay instance!\r\n");
dreschpe 0:de9d1462a835 68 return false;
dreschpe 0:de9d1462a835 69 }
dreschpe 0:de9d1462a835 70 if (freopen(_path, "w", stream) == NULL) {
dreschpe 0:de9d1462a835 71 // Failed, should not happen
dreschpe 0:de9d1462a835 72 return false;
dreschpe 0:de9d1462a835 73 }
dreschpe 0:de9d1462a835 74 // make sure we use line buffering
dreschpe 0:de9d1462a835 75 setvbuf(stdout, NULL, _IOLBF, columns());
dreschpe 0:de9d1462a835 76 return true;
dreschpe 0:de9d1462a835 77 }