terminal/src/buffer/out/CharRowCell.cpp

87 lines
2.0 KiB
C++

// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.
#include "precomp.h"
#include "CharRowCell.hpp"
#include "unicode.hpp"
// default glyph value, used for reseting the character data portion of a cell
static constexpr wchar_t DefaultValue = UNICODE_SPACE;
CharRowCell::CharRowCell() :
_wch{ DefaultValue },
_attr{}
{
}
CharRowCell::CharRowCell(const wchar_t wch, const DbcsAttribute attr) :
_wch{ wch },
_attr{ attr }
{
}
// Routine Description:
// - "erases" the glyph. really sets it back to the default "empty" value
void CharRowCell::EraseChars()
{
if (_attr.IsGlyphStored())
{
_attr.SetGlyphStored(false);
}
_wch = DefaultValue;
}
// Routine Description:
// - resets this object back to the defaults it would have from the default constructor
void CharRowCell::Reset() noexcept
{
_attr.Reset();
_wch = DefaultValue;
}
// Routine Description:
// - checks if cell contains a space glyph
// Return Value:
// - true if cell contains a space glyph, false otherwise
bool CharRowCell::IsSpace() const noexcept
{
return !_attr.IsGlyphStored() && _wch == UNICODE_SPACE;
}
// Routine Description:
// - Access the DbcsAttribute for the cell
// Return Value:
// - ref to the cells' DbcsAttribute
DbcsAttribute& CharRowCell::DbcsAttr() noexcept
{
return _attr;
}
// Routine Description:
// - Access the DbcsAttribute for the cell
// Return Value:
// - ref to the cells' DbcsAttribute
const DbcsAttribute& CharRowCell::DbcsAttr() const noexcept
{
return _attr;
}
// Routine Description:
// - Access the cell's wchar field. this does not access any char data through UnicodeStorage.
// Return Value:
// - the cell's wchar field
wchar_t& CharRowCell::Char() noexcept
{
return _wch;
}
// Routine Description:
// - Access the cell's wchar field. this does not access any char data through UnicodeStorage.
// Return Value:
// - the cell's wchar field
const wchar_t& CharRowCell::Char() const noexcept
{
return _wch;
}