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dbc04bbf1b
1. Don't use double_hash. This is not for doubles, as its name implies. 2. Specialize traits and formatters using the underlying DistinctNumeric type of Web::DevicePixels and Web::CSSPixels.
168 lines
5 KiB
C++
168 lines
5 KiB
C++
/*
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* Copyright (c) 2022, Sam Atkins <atkinssj@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/Concepts.h>
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#include <AK/DistinctNumeric.h>
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#include <AK/Traits.h>
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#include <LibGfx/Forward.h>
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#include <math.h>
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namespace Web {
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/// DevicePixels: A position or length on the physical display.
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AK_TYPEDEF_DISTINCT_NUMERIC_GENERAL(int, DevicePixels, Arithmetic, CastToUnderlying, Comparison, Increment);
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template<Integral T>
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constexpr bool operator==(DevicePixels left, T right) { return left.value() == right; }
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template<Integral T>
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constexpr bool operator!=(DevicePixels left, T right) { return left.value() != right; }
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template<Integral T>
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constexpr bool operator>(DevicePixels left, T right) { return left.value() > right; }
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template<Integral T>
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constexpr bool operator<(DevicePixels left, T right) { return left.value() < right; }
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template<Integral T>
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constexpr bool operator>=(DevicePixels left, T right) { return left.value() >= right; }
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template<Integral T>
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constexpr bool operator<=(DevicePixels left, T right) { return left.value() <= right; }
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template<Integral T>
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constexpr DevicePixels operator*(DevicePixels left, T right) { return left.value() * right; }
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template<Integral T>
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constexpr DevicePixels operator*(T left, DevicePixels right) { return right * left; }
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template<Integral T>
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constexpr DevicePixels operator/(DevicePixels left, T right) { return left.value() / right; }
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template<Integral T>
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constexpr DevicePixels operator%(DevicePixels left, T right) { return left.value() % right; }
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/// CSSPixels: A position or length in CSS "reference pixels", independent of zoom or screen DPI.
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/// See https://www.w3.org/TR/css-values-3/#reference-pixel
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AK_TYPEDEF_DISTINCT_NUMERIC_GENERAL(float, CSSPixels, Arithmetic, CastToUnderlying, Comparison, Increment);
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template<Arithmetic T>
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constexpr bool operator==(CSSPixels left, T right) { return left.value() == right; }
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template<Arithmetic T>
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constexpr bool operator!=(CSSPixels left, T right) { return left.value() != right; }
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template<Arithmetic T>
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constexpr bool operator>(CSSPixels left, T right) { return left.value() > right; }
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template<Arithmetic T>
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constexpr bool operator<(CSSPixels left, T right) { return left.value() < right; }
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template<Arithmetic T>
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constexpr bool operator>=(CSSPixels left, T right) { return left.value() >= right; }
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template<Arithmetic T>
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constexpr bool operator<=(CSSPixels left, T right) { return left.value() <= right; }
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template<Arithmetic T>
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constexpr CSSPixels operator*(CSSPixels left, T right) { return left.value() * right; }
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template<Arithmetic T>
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constexpr CSSPixels operator*(T left, CSSPixels right) { return right * left; }
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template<Arithmetic T>
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constexpr CSSPixels operator/(CSSPixels left, T right) { return left.value() / right; }
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template<Arithmetic T>
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constexpr CSSPixels operator%(CSSPixels left, T right) { return left.value() % right; }
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using CSSPixelLine = Gfx::Line<CSSPixels>;
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using CSSPixelPoint = Gfx::Point<CSSPixels>;
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using CSSPixelRect = Gfx::Rect<CSSPixels>;
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using CSSPixelSize = Gfx::Size<CSSPixels>;
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using DevicePixelLine = Gfx::Line<DevicePixels>;
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using DevicePixelPoint = Gfx::Point<DevicePixels>;
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using DevicePixelRect = Gfx::Rect<DevicePixels>;
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using DevicePixelSize = Gfx::Size<DevicePixels>;
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}
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constexpr Web::CSSPixels floor(Web::CSSPixels const& value)
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{
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return ::floorf(value.value());
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}
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constexpr Web::CSSPixels ceil(Web::CSSPixels const& value)
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{
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return ::ceilf(value.value());
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}
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constexpr Web::CSSPixels round(Web::CSSPixels const& value)
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{
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return ::roundf(value.value());
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}
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constexpr Web::CSSPixels fmod(Web::CSSPixels const& x, Web::CSSPixels const& y)
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{
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return ::fmodf(x.value(), y.value());
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}
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constexpr Web::CSSPixels abs(Web::CSSPixels const& value)
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{
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return AK::abs(value.value());
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}
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constexpr Web::DevicePixels abs(Web::DevicePixels const& value)
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{
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return AK::abs(value.value());
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}
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namespace AK {
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template<>
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struct Traits<Web::CSSPixels> : public GenericTraits<Web::CSSPixels> {
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static unsigned hash(Web::CSSPixels const& key)
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{
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return Traits<Web::CSSPixels::Type>::hash(key.value());
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}
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static bool equals(Web::CSSPixels const& a, Web::CSSPixels const& b)
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{
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return a == b;
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}
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};
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template<>
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struct Traits<Web::DevicePixels> : public GenericTraits<Web::DevicePixels> {
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static unsigned hash(Web::DevicePixels const& key)
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{
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return Traits<Web::DevicePixels::Type>::hash(key.value());
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}
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static bool equals(Web::DevicePixels const& a, Web::DevicePixels const& b)
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{
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return a == b;
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}
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};
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template<>
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struct Formatter<Web::CSSPixels> : Formatter<Web::CSSPixels::Type> {
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ErrorOr<void> format(FormatBuilder& builder, Web::CSSPixels const& value)
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{
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return Formatter<Web::CSSPixels::Type>::format(builder, value.value());
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}
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};
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template<>
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struct Formatter<Web::DevicePixels> : Formatter<Web::DevicePixels::Type> {
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ErrorOr<void> format(FormatBuilder& builder, Web::DevicePixels const& value)
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{
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return Formatter<Web::DevicePixels::Type>::format(builder, value.value());
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}
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};
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}
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