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Dependencies:   C12832_lcd LM75B WebSocketClient mbed-rtos mbed Socket lwip-eth lwip-sys lwip

C12832_lcd/TextDisplay.h@0:0ed2a7c7190c, 2013-05-31 (annotated)

Committer:
GordonSin
Date:
Fri May 31 04:09:54 2013 +0000
Revision:
0:0ed2a7c7190c
31/5/2013;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
GordonSin 0:0ed2a7c7190c 1 /* mbed TextDisplay Library Base Class
GordonSin 0:0ed2a7c7190c 2 * Copyright (c) 2007-2009 sford
GordonSin 0:0ed2a7c7190c 3 * Released under the MIT License: http://mbed.org/license/mit
GordonSin 0:0ed2a7c7190c 4 *
GordonSin 0:0ed2a7c7190c 5 * A common base class for Text displays
GordonSin 0:0ed2a7c7190c 6 * To port a new display, derive from this class and implement
GordonSin 0:0ed2a7c7190c 7 * the constructor (setup the display), character (put a character
GordonSin 0:0ed2a7c7190c 8 * at a location), rows and columns (number of rows/cols) functions.
GordonSin 0:0ed2a7c7190c 9 * Everything else (locate, printf, putc, cls) will come for free
GordonSin 0:0ed2a7c7190c 10 *
GordonSin 0:0ed2a7c7190c 11 * The model is the display will wrap at the right and bottom, so you can
GordonSin 0:0ed2a7c7190c 12 * keep writing and will always get valid characters. The location is
GordonSin 0:0ed2a7c7190c 13 * maintained internally to the class to make this easy
GordonSin 0:0ed2a7c7190c 14 */
GordonSin 0:0ed2a7c7190c 15
GordonSin 0:0ed2a7c7190c 16 #ifndef MBED_TEXTDISPLAY_H
GordonSin 0:0ed2a7c7190c 17 #define MBED_TEXTDISPLAY_H
GordonSin 0:0ed2a7c7190c 18
GordonSin 0:0ed2a7c7190c 19 #include "mbed.h"
GordonSin 0:0ed2a7c7190c 20
GordonSin 0:0ed2a7c7190c 21 class TextDisplay : public Stream {
GordonSin 0:0ed2a7c7190c 22 public:
GordonSin 0:0ed2a7c7190c 23
GordonSin 0:0ed2a7c7190c 24 // functions needing implementation in derived implementation class
GordonSin 0:0ed2a7c7190c 25 /** Create a TextDisplay interface
GordonSin 0:0ed2a7c7190c 26 *
GordonSin 0:0ed2a7c7190c 27 * @param name The name used in the path to access the strean through the filesystem
GordonSin 0:0ed2a7c7190c 28 */
GordonSin 0:0ed2a7c7190c 29 TextDisplay(const char *name = NULL);
GordonSin 0:0ed2a7c7190c 30
GordonSin 0:0ed2a7c7190c 31 /** output a character at the given position
GordonSin 0:0ed2a7c7190c 32 *
GordonSin 0:0ed2a7c7190c 33 * @param column column where charater must be written
GordonSin 0:0ed2a7c7190c 34 * @param row where character must be written
GordonSin 0:0ed2a7c7190c 35 * @param c the character to be written to the TextDisplay
GordonSin 0:0ed2a7c7190c 36 */
GordonSin 0:0ed2a7c7190c 37 virtual void character(int column, int row, int c) = 0;
GordonSin 0:0ed2a7c7190c 38
GordonSin 0:0ed2a7c7190c 39 /** return number if rows on TextDisplay
GordonSin 0:0ed2a7c7190c 40 * @result number of rows
GordonSin 0:0ed2a7c7190c 41 */
GordonSin 0:0ed2a7c7190c 42 virtual int rows() = 0;
GordonSin 0:0ed2a7c7190c 43
GordonSin 0:0ed2a7c7190c 44 /** return number if columns on TextDisplay
GordonSin 0:0ed2a7c7190c 45 * @result number of rows
GordonSin 0:0ed2a7c7190c 46 */
GordonSin 0:0ed2a7c7190c 47 virtual int columns() = 0;
GordonSin 0:0ed2a7c7190c 48
GordonSin 0:0ed2a7c7190c 49 // functions that come for free, but can be overwritten
GordonSin 0:0ed2a7c7190c 50
GordonSin 0:0ed2a7c7190c 51 /** redirect output from a stream (stoud, sterr) to display
GordonSin 0:0ed2a7c7190c 52 * @param stream stream that shall be redirected to the TextDisplay
GordonSin 0:0ed2a7c7190c 53 */
GordonSin 0:0ed2a7c7190c 54 virtual bool claim (FILE *stream);
GordonSin 0:0ed2a7c7190c 55
GordonSin 0:0ed2a7c7190c 56 /** clear screen
GordonSin 0:0ed2a7c7190c 57 */
GordonSin 0:0ed2a7c7190c 58 virtual void cls();
GordonSin 0:0ed2a7c7190c 59 virtual void locate(int column, int row);
GordonSin 0:0ed2a7c7190c 60 virtual void foreground(uint16_t colour);
GordonSin 0:0ed2a7c7190c 61 virtual void background(uint16_t colour);
GordonSin 0:0ed2a7c7190c 62 // putc (from Stream)
GordonSin 0:0ed2a7c7190c 63 // printf (from Stream)
GordonSin 0:0ed2a7c7190c 64
GordonSin 0:0ed2a7c7190c 65 protected:
GordonSin 0:0ed2a7c7190c 66
GordonSin 0:0ed2a7c7190c 67 virtual int _putc(int value);
GordonSin 0:0ed2a7c7190c 68 virtual int _getc();
GordonSin 0:0ed2a7c7190c 69
GordonSin 0:0ed2a7c7190c 70 // character location
GordonSin 0:0ed2a7c7190c 71 uint16_t _column;
GordonSin 0:0ed2a7c7190c 72 uint16_t _row;
GordonSin 0:0ed2a7c7190c 73
GordonSin 0:0ed2a7c7190c 74 // colours
GordonSin 0:0ed2a7c7190c 75 uint16_t _foreground;
GordonSin 0:0ed2a7c7190c 76 uint16_t _background;
GordonSin 0:0ed2a7c7190c 77 char *_path;
GordonSin 0:0ed2a7c7190c 78 };
GordonSin 0:0ed2a7c7190c 79
GordonSin 0:0ed2a7c7190c 80 #endif