mirror of
https://github.com/RGBCube/serenity
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7419569a2b
Previously, this was done by telling the client to put a space at each character in the range. This was inefficient, because a large number of function calls took place and incorrect, as the ANSI standard dictates that character attributes should be cleared as well. The newly added `clear_in_line` function solves this issue. It performs just one bounds check when it's called and can be implemented as a pretty tight loop.
64 lines
1.5 KiB
C++
64 lines
1.5 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Noncopyable.h>
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#include <AK/String.h>
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#include <AK/Vector.h>
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#include <LibVT/Attribute.h>
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#include <LibVT/XtermColors.h>
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namespace VT {
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class Line {
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AK_MAKE_NONCOPYABLE(Line);
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AK_MAKE_NONMOVABLE(Line);
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public:
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explicit Line(size_t length);
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~Line();
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struct Cell {
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u32 code_point { ' ' };
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Attribute attribute;
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};
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const Attribute& attribute_at(size_t index) const { return m_cells[index].attribute; }
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Attribute& attribute_at(size_t index) { return m_cells[index].attribute; }
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Cell& cell_at(size_t index) { return m_cells[index]; }
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const Cell& cell_at(size_t index) const { return m_cells[index]; }
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void clear(const Attribute& attribute = Attribute())
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{
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clear_range(0, m_cells.size() - 1, attribute);
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}
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void clear_range(size_t first_column, size_t last_column, const Attribute& attribute = Attribute());
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bool has_only_one_background_color() const;
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size_t length() const { return m_cells.size(); }
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void set_length(size_t);
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u32 code_point(size_t index) const
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{
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return m_cells[index].code_point;
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}
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void set_code_point(size_t index, u32 code_point)
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{
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m_cells[index].code_point = code_point;
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}
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bool is_dirty() const { return m_dirty; }
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void set_dirty(bool b) { m_dirty = b; }
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private:
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Vector<Cell> m_cells;
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bool m_dirty { false };
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};
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}
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