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@209:08fc22dea762, 2021-04-04 (annotated)

Committer:
WiredHome
Date:
Sun Apr 04 20:14:06 2021 +0000
Revision:
209:08fc22dea762
Parent:
198:9b6851107426 
Fix a long-standing defect in the FT5206 where it reported 'touch' code even for hold and release events.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
WiredHome 167:8aa3fb2a5a31 1 // mbed TextDisplay Display Library Base Class
WiredHome 167:8aa3fb2a5a31 2 // Copyright © 2007-2009 sford
WiredHome 167:8aa3fb2a5a31 3 // Released under the MIT License: http://mbed.org/license/mit
WiredHome 19:3f82c1161fd2 4
dreschpe 0:de9d1462a835 5 #include "TextDisplay.h"
dreschpe 0:de9d1462a835 6
WiredHome 75:ca78388cfd77 7 //#define DEBUG "Text"
WiredHome 29:422616aa04bd 8 // ...
WiredHome 29:422616aa04bd 9 // INFO("Stuff to show %d", var); // new-line is automatically appended
WiredHome 29:422616aa04bd 10 //
WiredHome 29:422616aa04bd 11 #if (defined(DEBUG) && !defined(TARGET_LPC11U24))
WiredHome 198:9b6851107426 12 #define INFO(x, ...) std::printf("[INF %s %3d] " x "\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome 198:9b6851107426 13 #define WARN(x, ...) std::printf("[WRN %s %3d] " x "\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome 198:9b6851107426 14 #define ERR(x, ...) std::printf("[ERR %s %3d] " x "\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome 29:422616aa04bd 15 #else
WiredHome 29:422616aa04bd 16 #define INFO(x, ...)
WiredHome 29:422616aa04bd 17 #define WARN(x, ...)
WiredHome 29:422616aa04bd 18 #define ERR(x, ...)
WiredHome 29:422616aa04bd 19 #endif
WiredHome 29:422616aa04bd 20
WiredHome 19:3f82c1161fd2 21 TextDisplay::TextDisplay(const char *name) : Stream(name)
WiredHome 19:3f82c1161fd2 22 {
dreschpe 0:de9d1462a835 23 _row = 0;
dreschpe 0:de9d1462a835 24 _column = 0;
WiredHome 182:8832d03a2a29 25 _foreground = 0;
WiredHome 182:8832d03a2a29 26 _background = 0;
dreschpe 0:de9d1462a835 27 if (name == NULL) {
dreschpe 0:de9d1462a835 28 _path = NULL;
dreschpe 0:de9d1462a835 29 } else {
WiredHome 141:2ec78a50dc98 30 int len = strlen(name) + 2;
WiredHome 141:2ec78a50dc98 31 _path = new char[len];
WiredHome 141:2ec78a50dc98 32 snprintf(_path, len, "/%s", name);
dreschpe 0:de9d1462a835 33 }
dreschpe 0:de9d1462a835 34 }
WiredHome 19:3f82c1161fd2 35
WiredHome 182:8832d03a2a29 36 TextDisplay::~TextDisplay()
WiredHome 182:8832d03a2a29 37 {
WiredHome 182:8832d03a2a29 38 delete [] _path;
WiredHome 182:8832d03a2a29 39 }
WiredHome 103:7e0464ca6c5c 40
WiredHome 19:3f82c1161fd2 41 int TextDisplay::_putc(int value)
WiredHome 19:3f82c1161fd2 42 {
WiredHome 29:422616aa04bd 43 INFO("_putc(%d)", value);
dreschpe 0:de9d1462a835 44 if(value == '\n') {
dreschpe 0:de9d1462a835 45 _column = 0;
dreschpe 0:de9d1462a835 46 _row++;
WiredHome 47:d96a09269f91 47 if(_row >= rows()) {
dreschpe 0:de9d1462a835 48 _row = 0;
dreschpe 0:de9d1462a835 49 }
dreschpe 0:de9d1462a835 50 } else {
dreschpe 0:de9d1462a835 51 character(_column, _row, value);
dreschpe 0:de9d1462a835 52 _column++;
dreschpe 0:de9d1462a835 53 if(_column >= columns()) {
dreschpe 0:de9d1462a835 54 _column = 0;
dreschpe 0:de9d1462a835 55 _row++;
WiredHome 47:d96a09269f91 56 if(_row >= rows()) {
dreschpe 0:de9d1462a835 57 _row = 0;
dreschpe 0:de9d1462a835 58 }
dreschpe 0:de9d1462a835 59 }
dreschpe 0:de9d1462a835 60 }
dreschpe 0:de9d1462a835 61 return value;
dreschpe 0:de9d1462a835 62 }
dreschpe 0:de9d1462a835 63
dreschpe 0:de9d1462a835 64 // crude cls implementation, should generally be overwritten in derived class
WiredHome 61:8f3153bf0baa 65 RetCode_t TextDisplay::cls(uint16_t layers)
WiredHome 19:3f82c1161fd2 66 {
WiredHome 29:422616aa04bd 67 INFO("cls()");
dreschpe 0:de9d1462a835 68 locate(0, 0);
dreschpe 0:de9d1462a835 69 for(int i=0; i<columns()*rows(); i++) {
dreschpe 0:de9d1462a835 70 putc(' ');
dreschpe 0:de9d1462a835 71 }
WiredHome 19:3f82c1161fd2 72 return noerror;
dreschpe 0:de9d1462a835 73 }
dreschpe 0:de9d1462a835 74
WiredHome 198:9b6851107426 75 point_t TextDisplay::locate(textloc_t column, textloc_t row)
WiredHome 19:3f82c1161fd2 76 {
WiredHome 198:9b6851107426 77 point_t oldPt;
WiredHome 198:9b6851107426 78
WiredHome 198:9b6851107426 79 oldPt.x = _column; oldPt.y = _row;
WiredHome 29:422616aa04bd 80 INFO("locate(%d,%d)", column, row);
dreschpe 0:de9d1462a835 81 _column = column;
dreschpe 0:de9d1462a835 82 _row = row;
WiredHome 198:9b6851107426 83 return oldPt;
dreschpe 0:de9d1462a835 84 }
dreschpe 0:de9d1462a835 85
WiredHome 19:3f82c1161fd2 86 int TextDisplay::_getc()
WiredHome 19:3f82c1161fd2 87 {
dreschpe 0:de9d1462a835 88 return -1;
dreschpe 0:de9d1462a835 89 }
WiredHome 19:3f82c1161fd2 90
WiredHome 198:9b6851107426 91 color_t TextDisplay::foreground(uint16_t color)
WiredHome 19:3f82c1161fd2 92 {
WiredHome 198:9b6851107426 93 color_t oldColor = _foreground;
WiredHome 37:f19b7e7449dc 94 //INFO("foreground(%4X)", color);
WiredHome 33:b6b710758ab3 95 _foreground = color;
WiredHome 198:9b6851107426 96 return oldColor;
dreschpe 0:de9d1462a835 97 }
dreschpe 0:de9d1462a835 98
WiredHome 198:9b6851107426 99 color_t TextDisplay::background(uint16_t color)
WiredHome 19:3f82c1161fd2 100 {
WiredHome 198:9b6851107426 101 color_t oldColor = _background;
WiredHome 37:f19b7e7449dc 102 //INFO("background(%4X)", color);
WiredHome 33:b6b710758ab3 103 _background = color;
WiredHome 198:9b6851107426 104 return oldColor;
dreschpe 0:de9d1462a835 105 }
dreschpe 0:de9d1462a835 106
WiredHome 29:422616aa04bd 107 bool TextDisplay::claim(FILE *stream)
WiredHome 19:3f82c1161fd2 108 {
dreschpe 0:de9d1462a835 109 if ( _path == NULL) {
WiredHome 19:3f82c1161fd2 110 fprintf(stderr, "claim requires a name to be given in the instantiator of the TextDisplay instance!\r\n");
dreschpe 0:de9d1462a835 111 return false;
dreschpe 0:de9d1462a835 112 }
dreschpe 0:de9d1462a835 113 if (freopen(_path, "w", stream) == NULL) {
WiredHome 29:422616aa04bd 114 return false; // Failed, should not happen
dreschpe 0:de9d1462a835 115 }
dreschpe 0:de9d1462a835 116 // make sure we use line buffering
dreschpe 0:de9d1462a835 117 setvbuf(stdout, NULL, _IOLBF, columns());
dreschpe 0:de9d1462a835 118 return true;
WiredHome 19:3f82c1161fd2 119 }
WiredHome 33:b6b710758ab3 120