physicien nocturne / gmon

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Dependencies:   mbed

gmon/C12832/TextDisplay.cpp@0:29ab7c7dd5b5, 2019-11-18 (annotated)

Committer:
physnoct
Date:
Mon Nov 18 06:09:14 2019 +0000
Revision:
0:29ab7c7dd5b5
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
physnoct 0:29ab7c7dd5b5 1 /* mbed TextDisplay Display Library Base Class
physnoct 0:29ab7c7dd5b5 2 * Copyright (c) 2007-2009 sford
physnoct 0:29ab7c7dd5b5 3 * Released under the MIT License: http://mbed.org/license/mit
physnoct 0:29ab7c7dd5b5 4 */
physnoct 0:29ab7c7dd5b5 5
physnoct 0:29ab7c7dd5b5 6 #include "TextDisplay.h"
physnoct 0:29ab7c7dd5b5 7
physnoct 0:29ab7c7dd5b5 8 TextDisplay::TextDisplay(const char *name) : Stream(name){
physnoct 0:29ab7c7dd5b5 9 _row = 0;
physnoct 0:29ab7c7dd5b5 10 _column = 0;
physnoct 0:29ab7c7dd5b5 11 if (name == NULL) {
physnoct 0:29ab7c7dd5b5 12 _path = NULL;
physnoct 0:29ab7c7dd5b5 13 } else {
physnoct 0:29ab7c7dd5b5 14 _path = new char[strlen(name) + 2];
physnoct 0:29ab7c7dd5b5 15 sprintf(_path, "/%s", name);
physnoct 0:29ab7c7dd5b5 16 }
physnoct 0:29ab7c7dd5b5 17 }
physnoct 0:29ab7c7dd5b5 18
physnoct 0:29ab7c7dd5b5 19 int TextDisplay::_putc(int value) {
physnoct 0:29ab7c7dd5b5 20 if(value == '\n') {
physnoct 0:29ab7c7dd5b5 21 _column = 0;
physnoct 0:29ab7c7dd5b5 22 _row++;
physnoct 0:29ab7c7dd5b5 23 if(_row >= rows()) {
physnoct 0:29ab7c7dd5b5 24 _row = 0;
physnoct 0:29ab7c7dd5b5 25 }
physnoct 0:29ab7c7dd5b5 26 } else {
physnoct 0:29ab7c7dd5b5 27 character(_column, _row, value);
physnoct 0:29ab7c7dd5b5 28 _column++;
physnoct 0:29ab7c7dd5b5 29 if(_column >= columns()) {
physnoct 0:29ab7c7dd5b5 30 _column = 0;
physnoct 0:29ab7c7dd5b5 31 _row++;
physnoct 0:29ab7c7dd5b5 32 if(_row >= rows()) {
physnoct 0:29ab7c7dd5b5 33 _row = 0;
physnoct 0:29ab7c7dd5b5 34 }
physnoct 0:29ab7c7dd5b5 35 }
physnoct 0:29ab7c7dd5b5 36 }
physnoct 0:29ab7c7dd5b5 37 return value;
physnoct 0:29ab7c7dd5b5 38 }
physnoct 0:29ab7c7dd5b5 39
physnoct 0:29ab7c7dd5b5 40 // crude cls implementation, should generally be overwritten in derived class
physnoct 0:29ab7c7dd5b5 41 void TextDisplay::cls() {
physnoct 0:29ab7c7dd5b5 42 locate(0, 0);
physnoct 0:29ab7c7dd5b5 43 for(int i=0; i<columns()*rows(); i++) {
physnoct 0:29ab7c7dd5b5 44 putc(' ');
physnoct 0:29ab7c7dd5b5 45 }
physnoct 0:29ab7c7dd5b5 46 }
physnoct 0:29ab7c7dd5b5 47
physnoct 0:29ab7c7dd5b5 48 void TextDisplay::locate(int column, int row) {
physnoct 0:29ab7c7dd5b5 49 _column = column;
physnoct 0:29ab7c7dd5b5 50 _row = row;
physnoct 0:29ab7c7dd5b5 51 }
physnoct 0:29ab7c7dd5b5 52
physnoct 0:29ab7c7dd5b5 53 int TextDisplay::_getc() {
physnoct 0:29ab7c7dd5b5 54 return -1;
physnoct 0:29ab7c7dd5b5 55 }
physnoct 0:29ab7c7dd5b5 56
physnoct 0:29ab7c7dd5b5 57 void TextDisplay::foreground(uint16_t colour) {
physnoct 0:29ab7c7dd5b5 58 _foreground = colour;
physnoct 0:29ab7c7dd5b5 59 }
physnoct 0:29ab7c7dd5b5 60
physnoct 0:29ab7c7dd5b5 61 void TextDisplay::background(uint16_t colour) {
physnoct 0:29ab7c7dd5b5 62 _background = colour;
physnoct 0:29ab7c7dd5b5 63 }
physnoct 0:29ab7c7dd5b5 64
physnoct 0:29ab7c7dd5b5 65 bool TextDisplay::claim (FILE *stream) {
physnoct 0:29ab7c7dd5b5 66 if ( _path == NULL) {
physnoct 0:29ab7c7dd5b5 67 fprintf(stderr, "claim requires a name to be given in the instantioator of the TextDisplay instance!\r\n");
physnoct 0:29ab7c7dd5b5 68 return false;
physnoct 0:29ab7c7dd5b5 69 }
physnoct 0:29ab7c7dd5b5 70 if (freopen(_path, "w", stream) == NULL) {
physnoct 0:29ab7c7dd5b5 71 // Failed, should not happen
physnoct 0:29ab7c7dd5b5 72 return false;
physnoct 0:29ab7c7dd5b5 73 }
physnoct 0:29ab7c7dd5b5 74 // make sure we use line buffering
physnoct 0:29ab7c7dd5b5 75 setvbuf(stdout, NULL, _IOLBF, columns());
physnoct 0:29ab7c7dd5b5 76 return true;
physnoct 0:29ab7c7dd5b5 77 }