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serenity/Userland/Libraries/LibVT/Attribute.h
Idan Horowitz 5b572393a9 LibVT: Use NNOP<KString> to store window titles in the Kernel
This will allow us to eventually propagate allocation failure.
2022-02-16 22:21:37 +01:00

72 lines
1.9 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Noncopyable.h>
#include <AK/Vector.h>
#include <LibVT/Color.h>
#include <LibVT/XtermColors.h>
#ifndef KERNEL
# include <AK/String.h>
#endif
namespace VT {
struct Attribute {
static constexpr Color default_foreground_color = Color::named(Color::ANSIColor::DefaultForeground);
static constexpr Color default_background_color = Color::named(Color::ANSIColor::DefaultBackground);
void reset()
{
foreground_color = default_foreground_color;
background_color = default_background_color;
flags = Flags::NoAttributes;
#ifndef KERNEL
href = {};
href_id = {};
#endif
}
Color foreground_color { default_foreground_color };
Color background_color { default_background_color };
constexpr Color effective_background_color() const { return flags & Negative ? foreground_color : background_color; }
constexpr Color effective_foreground_color() const { return flags & Negative ? background_color : foreground_color; }
#ifndef KERNEL
String href;
String href_id;
#endif
enum Flags : u8 {
NoAttributes = 0x00,
Bold = 0x01,
Italic = 0x02,
Underline = 0x04,
Negative = 0x08,
Blink = 0x10,
Touched = 0x20,
};
constexpr bool is_untouched() const { return !(flags & Touched); }
// TODO: it would be really nice if we had a helper for enums that
// exposed bit ops for class enums...
u8 flags { Flags::NoAttributes };
constexpr bool operator==(const Attribute& other) const
{
return foreground_color == other.foreground_color && background_color == other.background_color && flags == other.flags;
}
constexpr bool operator!=(const Attribute& other) const
{
return !(*this == other);
}
};
}