Qing Xia / SPI_TFT_ILI9341

my SPI_TFT_ILI9341 lib

Fork of SPI_TFT_ILI9341 by Peter Drescher

TextDisplay.h@0:da1bf437cbc1, 2013-06-12 (annotated)

Committer:
dreschpe
Date:
Wed Jun 12 22:54:38 2013 +0000
Revision:
0:da1bf437cbc1
Test Version,

Who changed what in which revision?

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dreschpe 0:da1bf437cbc1 1 /* mbed TextDisplay Library Base Class
dreschpe 0:da1bf437cbc1 2 * Copyright (c) 2007-2009 sford
dreschpe 0:da1bf437cbc1 3 * Released under the MIT License: http://mbed.org/license/mit
dreschpe 0:da1bf437cbc1 4 *
dreschpe 0:da1bf437cbc1 5 * A common base class for Text displays
dreschpe 0:da1bf437cbc1 6 * To port a new display, derive from this class and implement
dreschpe 0:da1bf437cbc1 7 * the constructor (setup the display), character (put a character
dreschpe 0:da1bf437cbc1 8 * at a location), rows and columns (number of rows/cols) functions.
dreschpe 0:da1bf437cbc1 9 * Everything else (locate, printf, putc, cls) will come for free
dreschpe 0:da1bf437cbc1 10 *
dreschpe 0:da1bf437cbc1 11 * The model is the display will wrap at the right and bottom, so you can
dreschpe 0:da1bf437cbc1 12 * keep writing and will always get valid characters. The location is
dreschpe 0:da1bf437cbc1 13 * maintained internally to the class to make this easy
dreschpe 0:da1bf437cbc1 14 */
dreschpe 0:da1bf437cbc1 15
dreschpe 0:da1bf437cbc1 16 #ifndef MBED_TEXTDISPLAY_H
dreschpe 0:da1bf437cbc1 17 #define MBED_TEXTDISPLAY_H
dreschpe 0:da1bf437cbc1 18
dreschpe 0:da1bf437cbc1 19 #include "mbed.h"
dreschpe 0:da1bf437cbc1 20
dreschpe 0:da1bf437cbc1 21 class TextDisplay : public Stream {
dreschpe 0:da1bf437cbc1 22 public:
dreschpe 0:da1bf437cbc1 23
dreschpe 0:da1bf437cbc1 24 // functions needing implementation in derived implementation class
dreschpe 0:da1bf437cbc1 25 /** Create a TextDisplay interface
dreschpe 0:da1bf437cbc1 26 *
dreschpe 0:da1bf437cbc1 27 * @param name The name used in the path to access the strean through the filesystem
dreschpe 0:da1bf437cbc1 28 */
dreschpe 0:da1bf437cbc1 29 TextDisplay(const char *name = NULL);
dreschpe 0:da1bf437cbc1 30
dreschpe 0:da1bf437cbc1 31 /** output a character at the given position
dreschpe 0:da1bf437cbc1 32 *
dreschpe 0:da1bf437cbc1 33 * @param column column where charater must be written
dreschpe 0:da1bf437cbc1 34 * @param row where character must be written
dreschpe 0:da1bf437cbc1 35 * @param c the character to be written to the TextDisplay
dreschpe 0:da1bf437cbc1 36 */
dreschpe 0:da1bf437cbc1 37 virtual void character(int column, int row, int c) = 0;
dreschpe 0:da1bf437cbc1 38
dreschpe 0:da1bf437cbc1 39 /** return number if rows on TextDisplay
dreschpe 0:da1bf437cbc1 40 * @result number of rows
dreschpe 0:da1bf437cbc1 41 */
dreschpe 0:da1bf437cbc1 42 virtual int rows() = 0;
dreschpe 0:da1bf437cbc1 43
dreschpe 0:da1bf437cbc1 44 /** return number if columns on TextDisplay
dreschpe 0:da1bf437cbc1 45 * @result number of rows
dreschpe 0:da1bf437cbc1 46 */
dreschpe 0:da1bf437cbc1 47 virtual int columns() = 0;
dreschpe 0:da1bf437cbc1 48
dreschpe 0:da1bf437cbc1 49 // functions that come for free, but can be overwritten
dreschpe 0:da1bf437cbc1 50
dreschpe 0:da1bf437cbc1 51 /** redirect output from a stream (stoud, sterr) to display
dreschpe 0:da1bf437cbc1 52 * @param stream stream that shall be redirected to the TextDisplay
dreschpe 0:da1bf437cbc1 53 */
dreschpe 0:da1bf437cbc1 54 virtual bool claim (FILE *stream);
dreschpe 0:da1bf437cbc1 55
dreschpe 0:da1bf437cbc1 56 /** clear screen
dreschpe 0:da1bf437cbc1 57 */
dreschpe 0:da1bf437cbc1 58 virtual void cls();
dreschpe 0:da1bf437cbc1 59 virtual void locate(int column, int row);
dreschpe 0:da1bf437cbc1 60 virtual void foreground(uint16_t colour);
dreschpe 0:da1bf437cbc1 61 virtual void background(uint16_t colour);
dreschpe 0:da1bf437cbc1 62 // putc (from Stream)
dreschpe 0:da1bf437cbc1 63 // printf (from Stream)
dreschpe 0:da1bf437cbc1 64
dreschpe 0:da1bf437cbc1 65 protected:
dreschpe 0:da1bf437cbc1 66
dreschpe 0:da1bf437cbc1 67 virtual int _putc(int value);
dreschpe 0:da1bf437cbc1 68 virtual int _getc();
dreschpe 0:da1bf437cbc1 69
dreschpe 0:da1bf437cbc1 70 // character location
dreschpe 0:da1bf437cbc1 71 uint16_t _column;
dreschpe 0:da1bf437cbc1 72 uint16_t _row;
dreschpe 0:da1bf437cbc1 73
dreschpe 0:da1bf437cbc1 74 // colours
dreschpe 0:da1bf437cbc1 75 uint16_t _foreground;
dreschpe 0:da1bf437cbc1 76 uint16_t _background;
dreschpe 0:da1bf437cbc1 77 char *_path;
dreschpe 0:da1bf437cbc1 78 };
dreschpe 0:da1bf437cbc1 79
dreschpe 0:da1bf437cbc1 80 #endif