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/*
* Copyright (c) 2020, The SerenityOS developers.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/String.h>
#include <AK/Types.h>
#include <AK/Vector.h>
#include <stdlib.h>
namespace Line {
class Style {
public:
enum class XtermColor : int {
Default = 9,
Black = 0,
Red,
Green,
Yellow,
Blue,
Magenta,
Cyan,
White,
Unchanged,
};
struct AnchoredTag {
};
struct UnderlineTag {
};
struct BoldTag {
};
struct ItalicTag {
};
struct Color {
explicit Color(XtermColor color)
: m_xterm_color(color)
, m_is_rgb(false)
{
}
Color(u8 r, u8 g, u8 b)
: m_rgb_color({ r, g, b })
, m_is_rgb(true)
{
}
bool is_default() const
{
return !m_is_rgb && m_xterm_color == XtermColor::Unchanged;
}
XtermColor m_xterm_color { XtermColor::Unchanged };
Vector<int, 3> m_rgb_color;
bool m_is_rgb { false };
};
struct Background : public Color {
explicit Background(XtermColor color)
: Color(color)
{
}
Background(u8 r, u8 g, u8 b)
: Color(r, g, b)
{
}
String to_vt_escape() const;
};
struct Foreground : public Color {
explicit Foreground(XtermColor color)
: Color(color)
{
}
Foreground(u8 r, u8 g, u8 b)
: Color(r, g, b)
{
}
String to_vt_escape() const;
};
struct Hyperlink {
explicit Hyperlink(const StringView& link)
: m_link(link)
{
m_has_link = true;
}
Hyperlink() { }
String to_vt_escape(bool starting) const;
bool is_empty() const { return !m_has_link; }
String m_link;
bool m_has_link { false };
};
static constexpr UnderlineTag Underline {};
static constexpr BoldTag Bold {};
static constexpr ItalicTag Italic {};
static constexpr AnchoredTag Anchored {};
// Prepare for the horror of templates.
template<typename T, typename... Rest>
Style(const T& style_arg, Rest... rest)
: Style(rest...)
{
set(style_arg);
m_is_empty = false;
}
Style() { }
static Style reset_style()
{
return { Foreground(XtermColor::Default), Background(XtermColor::Default), Hyperlink("") };
}
Style unified_with(const Style& other, bool prefer_other = true) const
{
Style style = *this;
style.unify_with(other, prefer_other);
return style;
}
void unify_with(const Style&, bool prefer_other = false);
bool underline() const { return m_underline; }
bool bold() const { return m_bold; }
bool italic() const { return m_italic; }
Background background() const { return m_background; }
Foreground foreground() const { return m_foreground; }
Hyperlink hyperlink() const { return m_hyperlink; }
void set(const ItalicTag&) { m_italic = true; }
void set(const BoldTag&) { m_bold = true; }
void set(const UnderlineTag&) { m_underline = true; }
void set(const Background& bg) { m_background = bg; }
void set(const Foreground& fg) { m_foreground = fg; }
void set(const Hyperlink& link) { m_hyperlink = link; }
void set(const AnchoredTag&) { m_is_anchored = true; }
bool is_anchored() const { return m_is_anchored; }
bool is_empty() const { return m_is_empty; }
String to_string() const;
private:
bool m_underline { false };
bool m_bold { false };
bool m_italic { false };
Background m_background { XtermColor::Unchanged };
Foreground m_foreground { XtermColor::Unchanged };
Hyperlink m_hyperlink;
bool m_is_anchored { false };
bool m_is_empty { true };
};
}
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