mirror of
https://github.com/fergalmoran/ladybird.git
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800ea8ea96
Problem: - `static` variables consume memory and sometimes are less optimizable. - `static const` variables can be `constexpr`, usually. - `static` function-local variables require an initialization check every time the function is run. Solution: - If a global `static` variable is only used in a single function then move it into the function and make it non-`static` and `constexpr`. - Make all global `static` variables `constexpr` instead of `const`. - Change function-local `static const[expr]` variables to be just `constexpr`.
66 lines
1.6 KiB
C++
66 lines
1.6 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/XtermColors.h>
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namespace VT {
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struct Attribute {
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Attribute() { reset(); }
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static constexpr u32 default_foreground_color = xterm_colors[7];
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static constexpr u32 default_background_color = xterm_colors[0];
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void reset()
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{
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foreground_color = default_foreground_color;
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background_color = default_background_color;
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flags = Flags::NoAttributes;
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}
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u32 foreground_color {};
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u32 background_color {};
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u32 effective_background_color() const { return flags & Negative ? foreground_color : background_color; }
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u32 effective_foreground_color() const { return flags & Negative ? background_color : foreground_color; }
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#ifndef KERNEL
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String href;
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String href_id;
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#endif
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enum Flags : u8 {
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NoAttributes = 0x00,
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Bold = 0x01,
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Italic = 0x02,
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Underline = 0x04,
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Negative = 0x08,
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Blink = 0x10,
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Touched = 0x20,
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};
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bool is_untouched() const { return !(flags & Touched); }
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// TODO: it would be really nice if we had a helper for enums that
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// exposed bit ops for class enums...
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u8 flags = Flags::NoAttributes;
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bool operator==(const Attribute& other) const
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{
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return foreground_color == other.foreground_color && background_color == other.background_color && flags == other.flags;
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}
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bool operator!=(const Attribute& other) const
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{
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return !(*this == other);
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}
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};
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}
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