DriverStationLCD.h

/*----------------------------------------------------------------------------*/
/* Copyright (c) FIRST 2008. All Rights Reserved.                                                         */
/* Open Source Software - may be modified and shared by FRC teams. The code   */
/* must be accompanied by the FIRST BSD license file in $(WIND_BASE)/WPILib.  */
/*----------------------------------------------------------------------------*/

#ifndef __DRIVER_STATION_LCD_H__
#define __DRIVER_STATION_LCD_H__

#include "SensorBase.h"

class DriverStationLCD : public SensorBase
{
public:
        static const UINT32 kSyncTimeout_ms = 20;
        static const UINT16 kFullDisplayTextCommand = 0x9FFF;
        static const INT32 kLineLength = 21;
        static const INT32 kNumLines = 6;
        enum Line {kMain_Line6=0, kUser_Line1=0, kUser_Line2=1, kUser_Line3=2, kUser_Line4=3, kUser_Line5=4, kUser_Line6=5};

        virtual ~DriverStationLCD();
        static DriverStationLCD *GetInstance();

        void UpdateLCD();
        void Printf(Line line, INT32 startingColumn, const char *writeFmt, ...);
        void PrintfLine(Line line, const char *writeFmt, ...);
 
        void Clear();


protected:
        DriverStationLCD();

private:
        static void InitTask(DriverStationLCD *ds);
        static DriverStationLCD *m_instance;
        DISALLOW_COPY_AND_ASSIGN(DriverStationLCD);

        char *m_textBuffer;
        SEM_ID m_textBufferSemaphore;
};

#endif