Marco Mayer / Mbed OS Queue

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mbed-os/features/unsupported/tests/mbed/freopen/TextDisplay.h@2:c7897a3f5f11, 2020-04-22 (annotated)

Committer:
demayer
Date:
Wed Apr 22 11:50:00 2020 +0000
Revision:
2:c7897a3f5f11
Parent:
0:6bf0743ece18 
test

Who changed what in which revision?

UserRevisionLine numberNew contents of line
demayer 0:6bf0743ece18 1 /* mbed TextDisplay Library Base Class
demayer 0:6bf0743ece18 2 * Copyright (c) 2007-2009 sford
demayer 0:6bf0743ece18 3 * Released under the MIT License: http://mbed.org/license/mit
demayer 0:6bf0743ece18 4 *
demayer 0:6bf0743ece18 5 * A common base class for Text displays
demayer 0:6bf0743ece18 6 * To port a new display, derive from this class and implement
demayer 0:6bf0743ece18 7 * the constructor (setup the display), character (put a character
demayer 0:6bf0743ece18 8 * at a location), rows and columns (number of rows/cols) functions.
demayer 0:6bf0743ece18 9 * Everything else (locate, printf, putc, cls) will come for free
demayer 0:6bf0743ece18 10 *
demayer 0:6bf0743ece18 11 * The model is the display will wrap at the right and bottom, so you can
demayer 0:6bf0743ece18 12 * keep writing and will always get valid characters. The location is
demayer 0:6bf0743ece18 13 * maintained internally to the class to make this easy
demayer 0:6bf0743ece18 14 */
demayer 0:6bf0743ece18 15
demayer 0:6bf0743ece18 16 #ifndef MBED_TEXTDISPLAY_H
demayer 0:6bf0743ece18 17 #define MBED_TEXTDISPLAY_H
demayer 0:6bf0743ece18 18
demayer 0:6bf0743ece18 19 #include "mbed.h"
demayer 0:6bf0743ece18 20
demayer 0:6bf0743ece18 21 class TextDisplay : public Stream {
demayer 0:6bf0743ece18 22 public:
demayer 0:6bf0743ece18 23
demayer 0:6bf0743ece18 24 // functions needing implementation in derived implementation class
demayer 0:6bf0743ece18 25 TextDisplay(const char *name = NULL);
demayer 0:6bf0743ece18 26 virtual void character(int column, int row, int c) = 0;
demayer 0:6bf0743ece18 27 virtual int rows() = 0;
demayer 0:6bf0743ece18 28 virtual int columns() = 0;
demayer 0:6bf0743ece18 29
demayer 0:6bf0743ece18 30 // functions that come for free, but can be overwritten
demayer 0:6bf0743ece18 31 virtual void cls();
demayer 0:6bf0743ece18 32 virtual void locate(int column, int row);
demayer 0:6bf0743ece18 33 virtual void foreground(int colour);
demayer 0:6bf0743ece18 34 virtual void background(int colour);
demayer 0:6bf0743ece18 35 // putc (from Stream)
demayer 0:6bf0743ece18 36 // printf (from Stream)
demayer 0:6bf0743ece18 37
demayer 0:6bf0743ece18 38 protected:
demayer 0:6bf0743ece18 39
demayer 0:6bf0743ece18 40 virtual int _putc(int value);
demayer 0:6bf0743ece18 41 virtual int _getc();
demayer 0:6bf0743ece18 42
demayer 0:6bf0743ece18 43 // character location
demayer 0:6bf0743ece18 44 short _column;
demayer 0:6bf0743ece18 45 short _row;
demayer 0:6bf0743ece18 46
demayer 0:6bf0743ece18 47 // colours
demayer 0:6bf0743ece18 48 int _foreground;
demayer 0:6bf0743ece18 49 int _background;
demayer 0:6bf0743ece18 50 };
demayer 0:6bf0743ece18 51
demayer 0:6bf0743ece18 52 #endif