File content as of revision 15:e61297f9bae9:

#ifndef __LCD__
#define __LCD__
/*
*This class inherits the TextLCD class to add functionality to display enviromental readings,
*with a scrolling display, or to display a specific message, which times out back
*to scrolling, and to set the time using two push buttons.
*/
#include "mbed.h"
#include "TextLCD.h"
#include "rtos.h"
#include <string>
//These functions manage writing to the LCD

class EnviromLCDDisplay : private TextLCD
{
private:
    //private variables
    enum ThreadState{MESSAGE,SCROLLREADINGS,ADJUSTTIME};
    enum ScrollState{PRESTEMP,LDRTIME};
    
    ThreadState _TState;    //This determines what function the LCD is doing
    ScrollState _SState;    //This determines what screen on the LCD is shown
    
    //Values to display    
    float _temperature;
    float _pressure;
    float _ldr;
    string _message;
    
    //Objects to be used
    Ticker _DisplayScroll;  //pointer to an external ticker that will be used for changing the display
    Thread _LCDThread;         //Pointer to the therad that will be used for the LCD
    PinName _Button1Pin;    //Button will change between InterruptIn and DigitalIn. Used to enter time edit mode
    DigitalIn _Button2;  //Button2
    bool _AutoQuit;     //After message is displayed, should LCD return to SCROLLREADINGS?
    
    //private functions
    
public:
    //public functions
    EnviromLCDDisplay(PinName rs,PinName e, PinName d4, PinName d5, PinName d6, PinName d7, PinName Button1Pin, PinName Button2/*, Thread& LCDThread, Ticker& DisplayScroll*/);    //Constructor
    //~EnviromLCDDisplay();   //Destructor
    
    bool POST(void);    //Power On Self Test. Returns true if pass
    void Start(void);   //Starts thread
    
    void DispMessage(string message, bool returnToReadings);   //Display given message on screen
    void LCDThread(void);   //This needs to be attached to a thread
    
};


#endif