IBM Watson IoT / Mbed OS IBMIoTClientEthernetExample

Contains example code to connect the mbed LPC1768 or FRDM-K64F devices to the IBM Internet of Things Cloud service via ethernet.

Dependencies:   C12832 MQTT LM75B MMA7660

Dependents:   MFT_IoT_demo_USB400 IBM_RFID

C12832/TextDisplay.h@6:37b6d0d56190, 2014-08-20 (annotated)

Committer:
samdanbury
Date:
Wed Aug 20 12:45:14 2014 +0000
Revision:
6:37b6d0d56190
Code completely changed to improve the structure, flow and memory usage of the application

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samdanbury 6:37b6d0d56190 1 /* mbed TextDisplay Library Base Class
samdanbury 6:37b6d0d56190 2 * Copyright (c) 2007-2009 sford
samdanbury 6:37b6d0d56190 3 * Released under the MIT License: http://mbed.org/license/mit
samdanbury 6:37b6d0d56190 4 *
samdanbury 6:37b6d0d56190 5 * A common base class for Text displays
samdanbury 6:37b6d0d56190 6 * To port a new display, derive from this class and implement
samdanbury 6:37b6d0d56190 7 * the constructor (setup the display), character (put a character
samdanbury 6:37b6d0d56190 8 * at a location), rows and columns (number of rows/cols) functions.
samdanbury 6:37b6d0d56190 9 * Everything else (locate, printf, putc, cls) will come for free
samdanbury 6:37b6d0d56190 10 *
samdanbury 6:37b6d0d56190 11 * The model is the display will wrap at the right and bottom, so you can
samdanbury 6:37b6d0d56190 12 * keep writing and will always get valid characters. The location is
samdanbury 6:37b6d0d56190 13 * maintained internally to the class to make this easy
samdanbury 6:37b6d0d56190 14 */
samdanbury 6:37b6d0d56190 15
samdanbury 6:37b6d0d56190 16 #ifndef MBED_TEXTDISPLAY_H
samdanbury 6:37b6d0d56190 17 #define MBED_TEXTDISPLAY_H
samdanbury 6:37b6d0d56190 18
samdanbury 6:37b6d0d56190 19 #include "mbed.h"
samdanbury 6:37b6d0d56190 20
samdanbury 6:37b6d0d56190 21 /**
samdanbury 6:37b6d0d56190 22 * TextDisplay interface
samdanbury 6:37b6d0d56190 23 */
samdanbury 6:37b6d0d56190 24 class TextDisplay : public Stream {
samdanbury 6:37b6d0d56190 25 public:
samdanbury 6:37b6d0d56190 26
samdanbury 6:37b6d0d56190 27 /**
samdanbury 6:37b6d0d56190 28 * Create a TextDisplay interface
samdanbury 6:37b6d0d56190 29 *
samdanbury 6:37b6d0d56190 30 * @param name The name used in the path to access the strean through the filesystem
samdanbury 6:37b6d0d56190 31 */
samdanbury 6:37b6d0d56190 32 TextDisplay(const char *name = NULL);
samdanbury 6:37b6d0d56190 33
samdanbury 6:37b6d0d56190 34 /**
samdanbury 6:37b6d0d56190 35 * Output a character at the given position
samdanbury 6:37b6d0d56190 36 *
samdanbury 6:37b6d0d56190 37 * @param column column where charater must be written
samdanbury 6:37b6d0d56190 38 * @param row where character must be written
samdanbury 6:37b6d0d56190 39 * @param c the character to be written to the TextDisplay
samdanbury 6:37b6d0d56190 40 */
samdanbury 6:37b6d0d56190 41 virtual void character(int column, int row, int c) = 0;
samdanbury 6:37b6d0d56190 42
samdanbury 6:37b6d0d56190 43 /**
samdanbury 6:37b6d0d56190 44 * Return number of rows on TextDisplay
samdanbury 6:37b6d0d56190 45 *
samdanbury 6:37b6d0d56190 46 * @results number of rows
samdanbury 6:37b6d0d56190 47 */
samdanbury 6:37b6d0d56190 48 virtual int rows() = 0;
samdanbury 6:37b6d0d56190 49
samdanbury 6:37b6d0d56190 50 /**
samdanbury 6:37b6d0d56190 51 * Return number if columns on TextDisplay\
samdanbury 6:37b6d0d56190 52 *
samdanbury 6:37b6d0d56190 53 * @results number of rows
samdanbury 6:37b6d0d56190 54 */
samdanbury 6:37b6d0d56190 55 virtual int columns() = 0;
samdanbury 6:37b6d0d56190 56
samdanbury 6:37b6d0d56190 57 // functions that come for free, but can be overwritten
samdanbury 6:37b6d0d56190 58
samdanbury 6:37b6d0d56190 59 /**
samdanbury 6:37b6d0d56190 60 * Redirect output from a stream (stoud, sterr) to display
samdanbury 6:37b6d0d56190 61 *
samdanbury 6:37b6d0d56190 62 * @param stream stream that shall be redirected to the TextDisplay
samdanbury 6:37b6d0d56190 63 */
samdanbury 6:37b6d0d56190 64 virtual bool claim (FILE *stream);
samdanbury 6:37b6d0d56190 65
samdanbury 6:37b6d0d56190 66 /**
samdanbury 6:37b6d0d56190 67 * Clear screen
samdanbury 6:37b6d0d56190 68 */
samdanbury 6:37b6d0d56190 69 virtual void cls();
samdanbury 6:37b6d0d56190 70
samdanbury 6:37b6d0d56190 71 /**
samdanbury 6:37b6d0d56190 72 * Change the cursor position to column, row (in pixels)
samdanbury 6:37b6d0d56190 73 */
samdanbury 6:37b6d0d56190 74 virtual void locate(int column, int row);
samdanbury 6:37b6d0d56190 75
samdanbury 6:37b6d0d56190 76 virtual void foreground(uint16_t colour);
samdanbury 6:37b6d0d56190 77 virtual void background(uint16_t colour);
samdanbury 6:37b6d0d56190 78 // putc (from Stream)
samdanbury 6:37b6d0d56190 79 // printf (from Stream)
samdanbury 6:37b6d0d56190 80
samdanbury 6:37b6d0d56190 81 protected:
samdanbury 6:37b6d0d56190 82
samdanbury 6:37b6d0d56190 83 virtual int _putc(int value);
samdanbury 6:37b6d0d56190 84 virtual int _getc();
samdanbury 6:37b6d0d56190 85
samdanbury 6:37b6d0d56190 86 // character location
samdanbury 6:37b6d0d56190 87 uint16_t _column;
samdanbury 6:37b6d0d56190 88 uint16_t _row;
samdanbury 6:37b6d0d56190 89
samdanbury 6:37b6d0d56190 90 // colours
samdanbury 6:37b6d0d56190 91 uint16_t _foreground;
samdanbury 6:37b6d0d56190 92 uint16_t _background;
samdanbury 6:37b6d0d56190 93 char *_path;
samdanbury 6:37b6d0d56190 94 };
samdanbury 6:37b6d0d56190 95
samdanbury 6:37b6d0d56190 96 #endif