Luis Amell / RA8875

This is the David Smart RA8875 Library with mods for working with FRDM-K64F

TextDisplay.cpp@199:08eb9e55567b, 2020-03-10 (annotated)

Committer:
lamell
Date:
Tue Mar 10 21:28:18 2020 -0400
Revision:
199:08eb9e55567b
Parent:
182:8832d03a2a29 
Subtle changes in the way the library behaves.

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 29:422616aa04bd 12 #define INFO(x, ...) std::printf("[INF %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome 29:422616aa04bd 13 #define WARN(x, ...) std::printf("[WRN %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome 29:422616aa04bd 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 37:f19b7e7449dc 75 RetCode_t TextDisplay::locate(textloc_t column, textloc_t row)
WiredHome 19:3f82c1161fd2 76 {
WiredHome 29:422616aa04bd 77 INFO("locate(%d,%d)", column, row);
dreschpe 0:de9d1462a835 78 _column = column;
dreschpe 0:de9d1462a835 79 _row = row;
WiredHome 19:3f82c1161fd2 80 return noerror;
dreschpe 0:de9d1462a835 81 }
dreschpe 0:de9d1462a835 82
WiredHome 19:3f82c1161fd2 83 int TextDisplay::_getc()
WiredHome 19:3f82c1161fd2 84 {
dreschpe 0:de9d1462a835 85 return -1;
dreschpe 0:de9d1462a835 86 }
WiredHome 19:3f82c1161fd2 87
WiredHome 33:b6b710758ab3 88 RetCode_t TextDisplay::foreground(uint16_t color)
WiredHome 19:3f82c1161fd2 89 {
WiredHome 37:f19b7e7449dc 90 //INFO("foreground(%4X)", color);
WiredHome 33:b6b710758ab3 91 _foreground = color;
WiredHome 19:3f82c1161fd2 92 return noerror;
dreschpe 0:de9d1462a835 93 }
dreschpe 0:de9d1462a835 94
WiredHome 33:b6b710758ab3 95 RetCode_t TextDisplay::background(uint16_t color)
WiredHome 19:3f82c1161fd2 96 {
WiredHome 37:f19b7e7449dc 97 //INFO("background(%4X)", color);
WiredHome 33:b6b710758ab3 98 _background = color;
WiredHome 19:3f82c1161fd2 99 return noerror;
dreschpe 0:de9d1462a835 100 }
dreschpe 0:de9d1462a835 101
WiredHome 29:422616aa04bd 102 bool TextDisplay::claim(FILE *stream)
WiredHome 19:3f82c1161fd2 103 {
dreschpe 0:de9d1462a835 104 if ( _path == NULL) {
WiredHome 19:3f82c1161fd2 105 fprintf(stderr, "claim requires a name to be given in the instantiator of the TextDisplay instance!\r\n");
dreschpe 0:de9d1462a835 106 return false;
dreschpe 0:de9d1462a835 107 }
dreschpe 0:de9d1462a835 108 if (freopen(_path, "w", stream) == NULL) {
WiredHome 29:422616aa04bd 109 return false; // Failed, should not happen
dreschpe 0:de9d1462a835 110 }
dreschpe 0:de9d1462a835 111 // make sure we use line buffering
dreschpe 0:de9d1462a835 112 setvbuf(stdout, NULL, _IOLBF, columns());
dreschpe 0:de9d1462a835 113 return true;
WiredHome 19:3f82c1161fd2 114 }
WiredHome 33:b6b710758ab3 115