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			52 lines
		
	
	
	
		
			1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			52 lines
		
	
	
	
		
			1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2022-2023, 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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| 
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| #pragma once
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| 
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| #include <AK/String.h>
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| #include <LibWeb/Forward.h>
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| 
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| namespace Web::CSS {
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| 
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| class Resolution {
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| public:
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|     enum class Type {
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|         Dpi,
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|         Dpcm,
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|         Dppx,
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|     };
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| 
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|     static Optional<Type> unit_from_name(StringView);
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| 
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|     Resolution(double value, Type type);
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| 
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|     String to_string() const;
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|     double to_dots_per_pixel() const;
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| 
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|     bool operator==(Resolution const& other) const
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|     {
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|         return m_type == other.m_type && m_value == other.m_value;
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|     }
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| 
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|     int operator<=>(Resolution const& other) const
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|     {
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|         auto this_dots_per_pixel = to_dots_per_pixel();
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|         auto other_dots_per_pixel = other.to_dots_per_pixel();
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| 
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|         if (this_dots_per_pixel < other_dots_per_pixel)
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|             return -1;
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|         if (this_dots_per_pixel > other_dots_per_pixel)
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|             return 1;
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|         return 0;
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|     }
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| 
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| private:
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|     StringView unit_name() const;
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| 
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|     Type m_type;
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|     double m_value { 0 };
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| };
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| }
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