A general demonstration color etch-a-sketch program using the QVGA TFT with HX8347D controller, Orange Board. Saves touchscreen calibaration data saved in tft.ini. Creates /local/tft.ini if missing. Also included is an Ethernet NTP client to update the RTC. Assumes all other Orange Board devices attached: Text LCD, SDHC Flash, Ethernet.
Dependencies: EthernetNetIf TextLCD mbed
SPI_TFT/TextDisplay.cpp@0:e065ca40f28a, 2011-08-01 (annotated)
- Committer:
- loopsva
- Date:
- Mon Aug 01 16:29:58 2011 +0000
- Revision:
- 0:e065ca40f28a
Inititial Release
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
loopsva | 0:e065ca40f28a | 1 | /* mbed TextDisplay Display Library Base Class |
loopsva | 0:e065ca40f28a | 2 | * Copyright (c) 2007-2009 sford |
loopsva | 0:e065ca40f28a | 3 | * Released under the MIT License: http://mbed.org/license/mit |
loopsva | 0:e065ca40f28a | 4 | */ |
loopsva | 0:e065ca40f28a | 5 | |
loopsva | 0:e065ca40f28a | 6 | #include "TextDisplay.h" |
loopsva | 0:e065ca40f28a | 7 | |
loopsva | 0:e065ca40f28a | 8 | TextDisplay::TextDisplay(const char *name) : Stream(name){ |
loopsva | 0:e065ca40f28a | 9 | _row = 0; |
loopsva | 0:e065ca40f28a | 10 | _column = 0; |
loopsva | 0:e065ca40f28a | 11 | if (name == NULL) { |
loopsva | 0:e065ca40f28a | 12 | _path = NULL; |
loopsva | 0:e065ca40f28a | 13 | } else { |
loopsva | 0:e065ca40f28a | 14 | _path = new char[strlen(name) + 2]; |
loopsva | 0:e065ca40f28a | 15 | sprintf(_path, "/%s", name); |
loopsva | 0:e065ca40f28a | 16 | } |
loopsva | 0:e065ca40f28a | 17 | } |
loopsva | 0:e065ca40f28a | 18 | |
loopsva | 0:e065ca40f28a | 19 | int TextDisplay::_putc(int value) { |
loopsva | 0:e065ca40f28a | 20 | if(value == '\n') { |
loopsva | 0:e065ca40f28a | 21 | _column = 0; |
loopsva | 0:e065ca40f28a | 22 | _row++; |
loopsva | 0:e065ca40f28a | 23 | if(_row >= rows()) { |
loopsva | 0:e065ca40f28a | 24 | _row = 0; |
loopsva | 0:e065ca40f28a | 25 | } |
loopsva | 0:e065ca40f28a | 26 | } else { |
loopsva | 0:e065ca40f28a | 27 | character(_column, _row, value); |
loopsva | 0:e065ca40f28a | 28 | _column++; |
loopsva | 0:e065ca40f28a | 29 | if(_column >= columns()) { |
loopsva | 0:e065ca40f28a | 30 | _column = 0; |
loopsva | 0:e065ca40f28a | 31 | _row++; |
loopsva | 0:e065ca40f28a | 32 | if(_row >= rows()) { |
loopsva | 0:e065ca40f28a | 33 | _row = 0; |
loopsva | 0:e065ca40f28a | 34 | } |
loopsva | 0:e065ca40f28a | 35 | } |
loopsva | 0:e065ca40f28a | 36 | } |
loopsva | 0:e065ca40f28a | 37 | return value; |
loopsva | 0:e065ca40f28a | 38 | } |
loopsva | 0:e065ca40f28a | 39 | |
loopsva | 0:e065ca40f28a | 40 | // crude cls implementation, should generally be overwritten in derived class |
loopsva | 0:e065ca40f28a | 41 | void TextDisplay::cls() { |
loopsva | 0:e065ca40f28a | 42 | locate(0, 0); |
loopsva | 0:e065ca40f28a | 43 | for(int i=0; i<columns()*rows(); i++) { |
loopsva | 0:e065ca40f28a | 44 | putc(' '); |
loopsva | 0:e065ca40f28a | 45 | } |
loopsva | 0:e065ca40f28a | 46 | } |
loopsva | 0:e065ca40f28a | 47 | |
loopsva | 0:e065ca40f28a | 48 | void TextDisplay::locate(int column, int row) { |
loopsva | 0:e065ca40f28a | 49 | _column = column; |
loopsva | 0:e065ca40f28a | 50 | _row = row; |
loopsva | 0:e065ca40f28a | 51 | } |
loopsva | 0:e065ca40f28a | 52 | |
loopsva | 0:e065ca40f28a | 53 | int TextDisplay::_getc() { |
loopsva | 0:e065ca40f28a | 54 | return -1; |
loopsva | 0:e065ca40f28a | 55 | } |
loopsva | 0:e065ca40f28a | 56 | |
loopsva | 0:e065ca40f28a | 57 | void TextDisplay::foreground(uint16_t colour) { |
loopsva | 0:e065ca40f28a | 58 | _foreground = colour; |
loopsva | 0:e065ca40f28a | 59 | } |
loopsva | 0:e065ca40f28a | 60 | |
loopsva | 0:e065ca40f28a | 61 | void TextDisplay::background(uint16_t colour) { |
loopsva | 0:e065ca40f28a | 62 | _background = colour; |
loopsva | 0:e065ca40f28a | 63 | } |
loopsva | 0:e065ca40f28a | 64 | |
loopsva | 0:e065ca40f28a | 65 | bool TextDisplay::claim (FILE *stream) { |
loopsva | 0:e065ca40f28a | 66 | if ( _path == NULL) { |
loopsva | 0:e065ca40f28a | 67 | fprintf(stderr, "claim requires a name to be given in the instantioator of the TextDisplay instance!\r\n"); |
loopsva | 0:e065ca40f28a | 68 | return false; |
loopsva | 0:e065ca40f28a | 69 | } |
loopsva | 0:e065ca40f28a | 70 | if (freopen(_path, "w", stream) == NULL) { |
loopsva | 0:e065ca40f28a | 71 | // Failed, should not happen |
loopsva | 0:e065ca40f28a | 72 | return false; |
loopsva | 0:e065ca40f28a | 73 | } |
loopsva | 0:e065ca40f28a | 74 | // make sure we use line buffering |
loopsva | 0:e065ca40f28a | 75 | setvbuf(stdout, NULL, _IOLBF, columns()); |
loopsva | 0:e065ca40f28a | 76 | return true; |
loopsva | 0:e065ca40f28a | 77 | } |