LaosDisplay.h

00001 /**
00002  * LaosDisplay.cpp
00003  * User interface class, for 2x16 display and keypad
00004  *
00005  * Copyright (c) 2011 Peter Brier
00006  *
00007  *   This file is part of the LaOS project (see: http://wiki.protospace.nl/index.php/LaOS)
00008  *
00009  *   LaOS is free software: you can redistribute it and/or modify
00010  *   it under the terms of the GNU General Public License as published by
00011  *   the Free Software Foundation, either version 3 of the License, or
00012  *   (at your option) any later version.
00013  *
00014  *   LaOS is distributed in the hope that it will be useful,
00015  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
00016  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00017  *   GNU General Public License for more details.
00018  *
00019  *   You should have received a copy of the GNU General Public License
00020  *   along with LaOS.  If not, see <http://www.gnu.org/licenses/>.
00021  *
00022  * Assume (USB) serial connected display (or terminal) in future, this could be CAN or I2C connected
00023  *
00024  */
00025 #ifndef _LAOS_DISPLAY_H_
00026 #define _LAOS_DISPLAY_H_
00027 
00028 extern "C" void mbed_reset();
00029     /** LaosDisplay
00030       * Connect to LCD terminal or PC
00031       * Example:
00032       * @code 
00033       * @endcode
00034       */
00035 class LaosDisplay {
00036 public:
00037     /** Make new LaosDisplay object. 
00038       */
00039     LaosDisplay();
00040     void Simulate();
00041     void EnableI2C(int baud);
00042 /** Display string at position (x,y)
00043   * @param x  x position in characters (zero based)
00044   * @param y  y position in characters (zero based)
00045   * @param s The string to display
00046   */ 
00047   void write(char *s);
00048   void ShowScreen(const char *l, int *arg, char *s);
00049   void testI2C();
00050    
00051 
00052 /** Clear screen
00053   */ 
00054    void cls();
00055 
00056 /** Read key value. (non blocking)
00057   * @return (ASCII) character value, zero if no character is available
00058   */ 
00059   int read();
00060     
00061 private:
00062   bool sim;
00063   int i2cBaud;
00064 };
00065 
00066 /* PC keyboard and I2C display
00067  * have the same keys
00068  */
00069 #define K_UP '8'
00070 #define K_DOWN '2'
00071 #define K_LEFT '4'
00072 #define K_RIGHT '6'
00073 #define K_FUP '9'
00074 #define K_FDOWN '3'
00075 #define K_OK '5'
00076 #define K_CANCEL '7'
00077 #define K_ORIGIN '1'
00078 
00079 #endif