Hexley Ball / RA8875_TP

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Fork of RA8875 by David Smart

TextDisplay.cpp@29:422616aa04bd, 2014-01-19 (annotated)

Committer:
WiredHome
Date:
Sun Jan 19 04:24:16 2014 +0000
Revision:
29:422616aa04bd
Parent:
19:3f82c1161fd2
Child:
33:b6b710758ab3
Initial support for soft fonts compatible with mikroe font creator.

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 */
WiredHome 19:3f82c1161fd2 5
dreschpe 0:de9d1462a835 6 #include "TextDisplay.h"
dreschpe 0:de9d1462a835 7
WiredHome 29:422616aa04bd 8 #define DEBUG "Text"
WiredHome 29:422616aa04bd 9 // ...
WiredHome 29:422616aa04bd 10 // INFO("Stuff to show %d", var); // new-line is automatically appended
WiredHome 29:422616aa04bd 11 //
WiredHome 29:422616aa04bd 12 #if (defined(DEBUG) && !defined(TARGET_LPC11U24))
WiredHome 29:422616aa04bd 13 #define INFO(x, ...) std::printf("[INF %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome 29:422616aa04bd 14 #define WARN(x, ...) std::printf("[WRN %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome 29:422616aa04bd 15 #define ERR(x, ...) std::printf("[ERR %s %3d] "x"\r\n", DEBUG, __LINE__, ##__VA_ARGS__);
WiredHome 29:422616aa04bd 16 #else
WiredHome 29:422616aa04bd 17 #define INFO(x, ...)
WiredHome 29:422616aa04bd 18 #define WARN(x, ...)
WiredHome 29:422616aa04bd 19 #define ERR(x, ...)
WiredHome 29:422616aa04bd 20 #endif
WiredHome 29:422616aa04bd 21
WiredHome 19:3f82c1161fd2 22 TextDisplay::TextDisplay(const char *name) : Stream(name)
WiredHome 19:3f82c1161fd2 23 {
dreschpe 0:de9d1462a835 24 _row = 0;
dreschpe 0:de9d1462a835 25 _column = 0;
dreschpe 0:de9d1462a835 26 if (name == NULL) {
dreschpe 0:de9d1462a835 27 _path = NULL;
dreschpe 0:de9d1462a835 28 } else {
dreschpe 0:de9d1462a835 29 _path = new char[strlen(name) + 2];
dreschpe 0:de9d1462a835 30 sprintf(_path, "/%s", name);
dreschpe 0:de9d1462a835 31 }
dreschpe 0:de9d1462a835 32 }
WiredHome 19:3f82c1161fd2 33
WiredHome 19:3f82c1161fd2 34 int TextDisplay::_putc(int value)
WiredHome 19:3f82c1161fd2 35 {
WiredHome 29:422616aa04bd 36 INFO("_putc(%d)", value);
dreschpe 0:de9d1462a835 37 if(value == '\n') {
dreschpe 0:de9d1462a835 38 _column = 0;
dreschpe 0:de9d1462a835 39 _row++;
dreschpe 0:de9d1462a835 40 if(_row >= rows()) {
dreschpe 0:de9d1462a835 41 _row = 0;
dreschpe 0:de9d1462a835 42 }
dreschpe 0:de9d1462a835 43 } else {
dreschpe 0:de9d1462a835 44 character(_column, _row, value);
dreschpe 0:de9d1462a835 45 _column++;
dreschpe 0:de9d1462a835 46 if(_column >= columns()) {
dreschpe 0:de9d1462a835 47 _column = 0;
dreschpe 0:de9d1462a835 48 _row++;
dreschpe 0:de9d1462a835 49 if(_row >= rows()) {
dreschpe 0:de9d1462a835 50 _row = 0;
dreschpe 0:de9d1462a835 51 }
dreschpe 0:de9d1462a835 52 }
dreschpe 0:de9d1462a835 53 }
dreschpe 0:de9d1462a835 54 return value;
dreschpe 0:de9d1462a835 55 }
dreschpe 0:de9d1462a835 56
dreschpe 0:de9d1462a835 57 // crude cls implementation, should generally be overwritten in derived class
WiredHome 19:3f82c1161fd2 58 RetCode_t TextDisplay::cls()
WiredHome 19:3f82c1161fd2 59 {
WiredHome 29:422616aa04bd 60 INFO("cls()");
dreschpe 0:de9d1462a835 61 locate(0, 0);
dreschpe 0:de9d1462a835 62 for(int i=0; i<columns()*rows(); i++) {
dreschpe 0:de9d1462a835 63 putc(' ');
dreschpe 0:de9d1462a835 64 }
WiredHome 19:3f82c1161fd2 65 return noerror;
dreschpe 0:de9d1462a835 66 }
dreschpe 0:de9d1462a835 67
WiredHome 19:3f82c1161fd2 68 RetCode_t TextDisplay::locate(unsigned int column, unsigned int row)
WiredHome 19:3f82c1161fd2 69 {
WiredHome 29:422616aa04bd 70 INFO("locate(%d,%d)", column, row);
dreschpe 0:de9d1462a835 71 _column = column;
dreschpe 0:de9d1462a835 72 _row = row;
WiredHome 19:3f82c1161fd2 73 return noerror;
dreschpe 0:de9d1462a835 74 }
dreschpe 0:de9d1462a835 75
WiredHome 19:3f82c1161fd2 76 int TextDisplay::_getc()
WiredHome 19:3f82c1161fd2 77 {
dreschpe 0:de9d1462a835 78 return -1;
dreschpe 0:de9d1462a835 79 }
WiredHome 19:3f82c1161fd2 80
WiredHome 19:3f82c1161fd2 81 RetCode_t TextDisplay::foreground(uint16_t colour)
WiredHome 19:3f82c1161fd2 82 {
WiredHome 29:422616aa04bd 83 INFO("foreground(%4X)", colour);
dreschpe 0:de9d1462a835 84 _foreground = colour;
WiredHome 19:3f82c1161fd2 85 return noerror;
dreschpe 0:de9d1462a835 86 }
dreschpe 0:de9d1462a835 87
WiredHome 19:3f82c1161fd2 88 RetCode_t TextDisplay::background(uint16_t colour)
WiredHome 19:3f82c1161fd2 89 {
WiredHome 29:422616aa04bd 90 INFO("background(%4X)", colour);
dreschpe 0:de9d1462a835 91 _background = colour;
WiredHome 19:3f82c1161fd2 92 return noerror;
dreschpe 0:de9d1462a835 93 }
dreschpe 0:de9d1462a835 94
WiredHome 29:422616aa04bd 95 bool TextDisplay::claim(FILE *stream)
WiredHome 19:3f82c1161fd2 96 {
dreschpe 0:de9d1462a835 97 if ( _path == NULL) {
WiredHome 19:3f82c1161fd2 98 fprintf(stderr, "claim requires a name to be given in the instantiator of the TextDisplay instance!\r\n");
dreschpe 0:de9d1462a835 99 return false;
dreschpe 0:de9d1462a835 100 }
dreschpe 0:de9d1462a835 101 if (freopen(_path, "w", stream) == NULL) {
WiredHome 29:422616aa04bd 102 return false; // Failed, should not happen
dreschpe 0:de9d1462a835 103 }
dreschpe 0:de9d1462a835 104 // make sure we use line buffering
dreschpe 0:de9d1462a835 105 setvbuf(stdout, NULL, _IOLBF, columns());
dreschpe 0:de9d1462a835 106 return true;
WiredHome 19:3f82c1161fd2 107 }