61 lines
1.4 KiB
C++
61 lines
1.4 KiB
C++
/*++
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Copyright (c) Microsoft Corporation
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Licensed under the MIT license.
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Module Name:
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- CharRowCell.hpp
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Abstract:
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- data structure for one cell of a char row. contains the char data for one
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coordinate position in the output buffer (leading/trailing information and
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the char itself.
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Author(s):
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- Austin Diviness (AustDi) 02-May-2018
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--*/
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#pragma once
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#include "DbcsAttribute.hpp"
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#if (defined(_M_IX86) || defined(_M_AMD64))
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// currently CharRowCell's fields use 3 bytes of memory, leaving the 4th byte in unused. this leads
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// to a rather large amount of useless memory allocated. so instead, pack CharRowCell by bytes instead of words.
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#pragma pack(push, 1)
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#endif
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class CharRowCell final
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{
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public:
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CharRowCell();
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CharRowCell(const wchar_t wch, const DbcsAttribute attr);
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void EraseChars();
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void Reset() noexcept;
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bool IsSpace() const noexcept;
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DbcsAttribute& DbcsAttr() noexcept;
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const DbcsAttribute& DbcsAttr() const noexcept;
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wchar_t& Char() noexcept;
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const wchar_t& Char() const noexcept;
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friend constexpr bool operator==(const CharRowCell& a, const CharRowCell& b) noexcept;
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private:
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wchar_t _wch;
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DbcsAttribute _attr;
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};
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#if (defined(_M_IX86) || defined(_M_AMD64))
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#pragma pack(pop)
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#endif
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constexpr bool operator==(const CharRowCell& a, const CharRowCell& b) noexcept
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{
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return (a._wch == b._wch &&
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a._attr == b._attr);
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}
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