Arunkumar Mourougappane / UniGraphic

UniGraphics Library Fork to support mbed os 6.3 Release for ILI9341

Dependents:   TFT_ILI9341_UniGraphic TFT_ILI9341_os6

Graphics/TextDisplay.cpp@2:59188908eb60, 2020-10-08 (annotated)

Committer:
amouroug
Date:
Thu Oct 08 18:11:03 2020 -0500
Revision:
2:59188908eb60
Parent:
0:bb2bda4f5846 
Added GraphicsDisplay GFX API to draw triangle.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
amouroug 0:bb2bda4f5846 1 /* mbed TextDisplay Display Library Base Class
amouroug 0:bb2bda4f5846 2 * Copyright (c) 2007-2009 sford
amouroug 0:bb2bda4f5846 3 * Released under the MIT License: http://mbed.org/license/mit
amouroug 0:bb2bda4f5846 4 */
amouroug 0:bb2bda4f5846 5
amouroug 0:bb2bda4f5846 6 #include "TextDisplay.h"
amouroug 0:bb2bda4f5846 7
amouroug 0:bb2bda4f5846 8 TextDisplay::TextDisplay(const char *name) : Stream(name){
amouroug 0:bb2bda4f5846 9 _row = 0;
amouroug 0:bb2bda4f5846 10 _column = 0;
amouroug 0:bb2bda4f5846 11 if (name == NULL) {
amouroug 0:bb2bda4f5846 12 _path = NULL;
amouroug 0:bb2bda4f5846 13 } else {
amouroug 0:bb2bda4f5846 14 _path = new char[strlen(name) + 2];
amouroug 0:bb2bda4f5846 15 sprintf(_path, "/%s", name);
amouroug 0:bb2bda4f5846 16 }
amouroug 0:bb2bda4f5846 17 }
amouroug 0:bb2bda4f5846 18
amouroug 0:bb2bda4f5846 19 int TextDisplay::_putc(int value) {
amouroug 0:bb2bda4f5846 20 if(value == '\n') {
amouroug 0:bb2bda4f5846 21 _column = 0;
amouroug 0:bb2bda4f5846 22 _row++;
amouroug 0:bb2bda4f5846 23 if(_row >= rows()) {
amouroug 0:bb2bda4f5846 24 _row = 0;
amouroug 0:bb2bda4f5846 25 }
amouroug 0:bb2bda4f5846 26 } else {
amouroug 0:bb2bda4f5846 27 character(_column, _row, value);
amouroug 0:bb2bda4f5846 28 _column++;
amouroug 0:bb2bda4f5846 29 if(_column >= columns()) {
amouroug 0:bb2bda4f5846 30 _column = 0;
amouroug 0:bb2bda4f5846 31 _row++;
amouroug 0:bb2bda4f5846 32 if(_row >= rows()) {
amouroug 0:bb2bda4f5846 33 _row = 0;
amouroug 0:bb2bda4f5846 34 }
amouroug 0:bb2bda4f5846 35 }
amouroug 0:bb2bda4f5846 36 }
amouroug 0:bb2bda4f5846 37 return value;
amouroug 0:bb2bda4f5846 38 }
amouroug 0:bb2bda4f5846 39
amouroug 0:bb2bda4f5846 40 // crude cls implementation, should generally be overwritten in derived class
amouroug 0:bb2bda4f5846 41 void TextDisplay::cls() {
amouroug 0:bb2bda4f5846 42 locate(0, 0);
amouroug 0:bb2bda4f5846 43 for(int i=0; i<columns()*rows(); i++) {
amouroug 0:bb2bda4f5846 44 putc(' ');
amouroug 0:bb2bda4f5846 45 }
amouroug 0:bb2bda4f5846 46 }
amouroug 0:bb2bda4f5846 47
amouroug 0:bb2bda4f5846 48 void TextDisplay::locate(int column, int row) {
amouroug 0:bb2bda4f5846 49 _column = column;
amouroug 0:bb2bda4f5846 50 _row = row;
amouroug 0:bb2bda4f5846 51 }
amouroug 0:bb2bda4f5846 52
amouroug 0:bb2bda4f5846 53 int TextDisplay::_getc() {
amouroug 0:bb2bda4f5846 54 return -1;
amouroug 0:bb2bda4f5846 55 }
amouroug 0:bb2bda4f5846 56
amouroug 0:bb2bda4f5846 57 void TextDisplay::foreground(uint16_t colour) {
amouroug 0:bb2bda4f5846 58 _foreground = colour;
amouroug 0:bb2bda4f5846 59 }
amouroug 0:bb2bda4f5846 60
amouroug 0:bb2bda4f5846 61 void TextDisplay::background(uint16_t colour) {
amouroug 0:bb2bda4f5846 62 _background = colour;
amouroug 0:bb2bda4f5846 63 }
amouroug 0:bb2bda4f5846 64
amouroug 0:bb2bda4f5846 65 bool TextDisplay::claim (FILE *stream) {
amouroug 0:bb2bda4f5846 66 if ( _path == NULL) {
amouroug 0:bb2bda4f5846 67 fprintf(stderr, "claim requires a name to be given in the instantioator of the TextDisplay instance!\r\n");
amouroug 0:bb2bda4f5846 68 return false;
amouroug 0:bb2bda4f5846 69 }
amouroug 0:bb2bda4f5846 70 if (freopen(_path, "w", stream) == NULL) {
amouroug 0:bb2bda4f5846 71 // Failed, should not happen
amouroug 0:bb2bda4f5846 72 return false;
amouroug 0:bb2bda4f5846 73 }
amouroug 0:bb2bda4f5846 74 // make sure we use line buffering
amouroug 0:bb2bda4f5846 75 setvbuf(stdout, NULL, _IOLBF, columns());
amouroug 0:bb2bda4f5846 76 return true;
amouroug 0:bb2bda4f5846 77 }