the new engineer´s / C12832_lcd

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Dependents:   2016-01-28_TINF_Temperatur_einlesen

TextDisplay.h@0:4a09a5e0d6d8, 2016-01-28 (annotated)

Committer:
tauchi88
Date:
Thu Jan 28 19:53:13 2016 +0000
Revision:
0:4a09a5e0d6d8
temp

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tauchi88 0:4a09a5e0d6d8 1 /* mbed TextDisplay Library Base Class
tauchi88 0:4a09a5e0d6d8 2 * Copyright (c) 2007-2009 sford
tauchi88 0:4a09a5e0d6d8 3 * Released under the MIT License: http://mbed.org/license/mit
tauchi88 0:4a09a5e0d6d8 4 *
tauchi88 0:4a09a5e0d6d8 5 * A common base class for Text displays
tauchi88 0:4a09a5e0d6d8 6 * To port a new display, derive from this class and implement
tauchi88 0:4a09a5e0d6d8 7 * the constructor (setup the display), character (put a character
tauchi88 0:4a09a5e0d6d8 8 * at a location), rows and columns (number of rows/cols) functions.
tauchi88 0:4a09a5e0d6d8 9 * Everything else (locate, printf, putc, cls) will come for free
tauchi88 0:4a09a5e0d6d8 10 *
tauchi88 0:4a09a5e0d6d8 11 * The model is the display will wrap at the right and bottom, so you can
tauchi88 0:4a09a5e0d6d8 12 * keep writing and will always get valid characters. The location is
tauchi88 0:4a09a5e0d6d8 13 * maintained internally to the class to make this easy
tauchi88 0:4a09a5e0d6d8 14 */
tauchi88 0:4a09a5e0d6d8 15
tauchi88 0:4a09a5e0d6d8 16 #ifndef MBED_TEXTDISPLAY_H
tauchi88 0:4a09a5e0d6d8 17 #define MBED_TEXTDISPLAY_H
tauchi88 0:4a09a5e0d6d8 18
tauchi88 0:4a09a5e0d6d8 19 #include "mbed.h"
tauchi88 0:4a09a5e0d6d8 20
tauchi88 0:4a09a5e0d6d8 21 class TextDisplay : public Stream {
tauchi88 0:4a09a5e0d6d8 22 public:
tauchi88 0:4a09a5e0d6d8 23
tauchi88 0:4a09a5e0d6d8 24 // functions needing implementation in derived implementation class
tauchi88 0:4a09a5e0d6d8 25 /** Create a TextDisplay interface
tauchi88 0:4a09a5e0d6d8 26 *
tauchi88 0:4a09a5e0d6d8 27 * @param name The name used in the path to access the strean through the filesystem
tauchi88 0:4a09a5e0d6d8 28 */
tauchi88 0:4a09a5e0d6d8 29 TextDisplay(const char *name = NULL);
tauchi88 0:4a09a5e0d6d8 30
tauchi88 0:4a09a5e0d6d8 31 /** output a character at the given position
tauchi88 0:4a09a5e0d6d8 32 *
tauchi88 0:4a09a5e0d6d8 33 * @param column column where charater must be written
tauchi88 0:4a09a5e0d6d8 34 * @param row where character must be written
tauchi88 0:4a09a5e0d6d8 35 * @param c the character to be written to the TextDisplay
tauchi88 0:4a09a5e0d6d8 36 */
tauchi88 0:4a09a5e0d6d8 37 virtual void character(int column, int row, int c) = 0;
tauchi88 0:4a09a5e0d6d8 38
tauchi88 0:4a09a5e0d6d8 39 /** return number if rows on TextDisplay
tauchi88 0:4a09a5e0d6d8 40 * @result number of rows
tauchi88 0:4a09a5e0d6d8 41 */
tauchi88 0:4a09a5e0d6d8 42 virtual int rows() = 0;
tauchi88 0:4a09a5e0d6d8 43
tauchi88 0:4a09a5e0d6d8 44 /** return number if columns on TextDisplay
tauchi88 0:4a09a5e0d6d8 45 * @result number of rows
tauchi88 0:4a09a5e0d6d8 46 */
tauchi88 0:4a09a5e0d6d8 47 virtual int columns() = 0;
tauchi88 0:4a09a5e0d6d8 48
tauchi88 0:4a09a5e0d6d8 49 // functions that come for free, but can be overwritten
tauchi88 0:4a09a5e0d6d8 50
tauchi88 0:4a09a5e0d6d8 51 /** redirect output from a stream (stoud, sterr) to display
tauchi88 0:4a09a5e0d6d8 52 * @param stream stream that shall be redirected to the TextDisplay
tauchi88 0:4a09a5e0d6d8 53 */
tauchi88 0:4a09a5e0d6d8 54 virtual bool claim (FILE *stream);
tauchi88 0:4a09a5e0d6d8 55
tauchi88 0:4a09a5e0d6d8 56 /** clear screen
tauchi88 0:4a09a5e0d6d8 57 */
tauchi88 0:4a09a5e0d6d8 58 virtual void cls();
tauchi88 0:4a09a5e0d6d8 59 virtual void locate(int column, int row);
tauchi88 0:4a09a5e0d6d8 60 virtual void foreground(uint16_t colour);
tauchi88 0:4a09a5e0d6d8 61 virtual void background(uint16_t colour);
tauchi88 0:4a09a5e0d6d8 62 // putc (from Stream)
tauchi88 0:4a09a5e0d6d8 63 // printf (from Stream)
tauchi88 0:4a09a5e0d6d8 64
tauchi88 0:4a09a5e0d6d8 65 protected:
tauchi88 0:4a09a5e0d6d8 66
tauchi88 0:4a09a5e0d6d8 67 virtual int _putc(int value);
tauchi88 0:4a09a5e0d6d8 68 virtual int _getc();
tauchi88 0:4a09a5e0d6d8 69
tauchi88 0:4a09a5e0d6d8 70 // character location
tauchi88 0:4a09a5e0d6d8 71 uint16_t _column;
tauchi88 0:4a09a5e0d6d8 72 uint16_t _row;
tauchi88 0:4a09a5e0d6d8 73
tauchi88 0:4a09a5e0d6d8 74 // colours
tauchi88 0:4a09a5e0d6d8 75 uint16_t _foreground;
tauchi88 0:4a09a5e0d6d8 76 uint16_t _background;
tauchi88 0:4a09a5e0d6d8 77 char *_path;
tauchi88 0:4a09a5e0d6d8 78 };
tauchi88 0:4a09a5e0d6d8 79
tauchi88 0:4a09a5e0d6d8 80 #endif