LCDCharacterDisplay.h

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/*
 * LCDCharacterDisplay.h  Created on: 24 May 2014
 * Copyright (c) 2014 Derek Molloy (www.derekmolloy.ie)
 * Made available for the book "Exploring BeagleBone"
 * See: www.exploringbeaglebone.com
 * Licensed under the EUPL V.1.1
 *
 * This Software is provided to You under the terms of the European
 * Union Public License (the "EUPL") version 1.1 as published by the
 * European Union. Any use of this Software, other than as authorized
 * under this License is strictly prohibited (to the extent such use
 * is covered by a right of the copyright holder of this Software).
 *
 * This Software is provided under the License on an "AS IS" basis and
 * without warranties of any kind concerning the Software, including
 * without limitation merchantability, fitness for a particular purpose,
 * absence of defects or errors, accuracy, and non-infringement of
 * intellectual property rights other than copyright. This disclaimer
 * of warranty is an essential part of the License and a condition for
 * the grant of any rights to this Software.
 *
 * For more details, see http://www.derekmolloy.ie/
 */

#ifndef LCDCHARACTERDISPLAY_H_
#define LCDCHARACTERDISPLAY_H_
#include "../bus/SPIDevice.h"
#include <string>

namespace exploringBB {

class LCDCharacterDisplay {

private:
        SPIDevice *device;          
        int width, height;          
        void command(char i);
        void setup4bit();
        unsigned char cursorState;
        unsigned char displayState;
        unsigned char entryState;
        void writeCursorState();
        void writeDisplayState();
        void writeEntryState();

public:
        LCDCharacterDisplay(SPIDevice *device, int width, int height);

        virtual void write(char c);
        virtual void print(std::string message);

        virtual void clear();
        virtual void home();
        virtual int  setCursorPosition(int row, int column);
        virtual void setDisplayOff(bool displayOff);
        virtual void setCursorOff(bool cursorOff);
        virtual void setCursorBlink(bool isBlink);
        virtual void setCursorMoveOff(bool cursorMoveOff);
        virtual void setCursorMoveLeft(bool cursorMoveLeft);
        virtual void setAutoscroll(bool isAutoscroll);
        virtual void setScrollDisplayLeft(bool scrollLeft);

        virtual ~LCDCharacterDisplay();
};

} /* namespace exploringBB */

#endif /* LCDCHARACTERDISPLAY_H_ */