DisplayErrors.hpp

Go to the documentation of this file.

/*
 * 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) 2018  Jeff Jackowski
 */
#ifndef DISPLAYERRORS_HPP
#define DISPLAYERRORS_HPP

#include <boost/exception/info.hpp>
#include <cstdint>

namespace duds { namespace hardware { namespace display {

struct DisplayError : virtual std::exception, virtual boost::exception { };
struct DisplaySizeError : DisplayError { };
struct DisplayBoundsError : DisplayError { };
struct DisplayUninitialized : DisplayError { };
struct DisplayGlyphIndexError : DisplayError { };
struct DisplayGlyphSizeError : DisplayError { };

struct Info_DisplayColRow {
    std::uint8_t col, row;
    Info_DisplayColRow(unsigned int c, unsigned int r) : col(c), row(r) { }
    template <class Char, class Traits>
    friend std::basic_ostream<Char, Traits> &operator << (
        std::basic_ostream<Char, Traits> &os, const Info_DisplayColRow &idrc
    ) {
        return os << '(' << (int)idrc.col << ", " << (int)idrc.row << ')';
    }
};

typedef boost::error_info<struct Info_DisplayPosition, Info_DisplayColRow>
    TextDisplayPositionInfo;
typedef boost::error_info<struct Info_DisplaySize, Info_DisplayColRow>
    TextDisplaySizeInfo;
typedef boost::error_info<struct Info_DisplayGlyph, int>  DisplayGlyphIndex;

} } }

#endif        //  #ifndef DISPLAYERRORS_HPP