TextDisplay.hpp

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/*
 * This file is part of the DUDS project. It is subject to the BSD-style
 * license terms in the LICENSE file found in the top-level directory of this
 * distribution and at https://github.com/jjackowski/duds/blob/master/LICENSE.
 * No part of DUDS, including this file, may be copied, modified, propagated,
 * or distributed except according to the terms contained in the LICENSE file.
 *
 * Copyright (C) 2017  Jeff Jackowski
 */
#ifndef TEXTDISPLAY_HPP
#define TEXTDISPLAY_HPP

#include <boost/noncopyable.hpp>
#include <duds/hardware/display/DisplayErrors.hpp>

namespace duds { namespace hardware {

namespace display {

class TextDisplay : boost::noncopyable {
protected:
    std::uint8_t columnsize;
    std::uint8_t rowsize;
    std::uint8_t cpos;
    std::uint8_t rpos;
    virtual bool advance();
    virtual void moveImpl(unsigned int c, unsigned int r) = 0;
    virtual void writeImpl(int c) = 0;
    virtual void writeImpl(const std::string &text);
    virtual void writeImpl(
        const std::string &text,
        unsigned int c,
        unsigned int r
    );
    TextDisplay();
    TextDisplay(
        unsigned int c,
        unsigned int r
    );
public:
    virtual ~TextDisplay() = 0;
    void move(unsigned int c, unsigned int r);
    void write(int c);
    void write(const std::string &text);
    void write(const std::string &text, unsigned int c, unsigned int r);
    virtual void clear() = 0;
    void clearTo(unsigned int c, unsigned int r);
    unsigned int columns() const {
        return columnsize;
    }
    unsigned int rows() const {
        return rowsize;
    }
    unsigned int columnPos() const {
        return cpos;
    }
    unsigned int rowPos() const {
        return rpos;
    }
};

} } }

#endif        //  #ifndef TEXTDISPLAY_HPP