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LibPDF: Split ColorSpace into a different class for each color space

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While unnecessary at the moment, this will allow for more fine-grained
control when complex color spaces get added.
This commit is contained in:
Matthew Olsson 2021-05-27 14:01:37 -07:00 • committed by Ali Mohammad Pur
parent ea3abb14fe
commit 7b4e36bf88
7 changed files with 174 additions and 106 deletions
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56
Userland/Libraries/LibPDF/ColorSpace.cpp Normal file
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/*
* Copyright (c) 2021, Matthew Olsson <mattco@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibPDF/ColorSpace.h>
#include <LibPDF/CommonNames.h>
namespace PDF {
RefPtr<DeviceGrayColorSpace> DeviceGrayColorSpace::the()
{
static auto instance = adopt_ref(*new DeviceGrayColorSpace());
return instance;
}
Color DeviceGrayColorSpace::color(const Vector<Value>& arguments) const
{
VERIFY(arguments.size() == 1);
auto gray = static_cast<u8>(arguments[0].to_float() * 255.0f);
return Color(gray, gray, gray);
}
RefPtr<DeviceRGBColorSpace> DeviceRGBColorSpace::the()
{
static auto instance = adopt_ref(*new DeviceRGBColorSpace());
return instance;
}
Color DeviceRGBColorSpace::color(const Vector<Value>& arguments) const
{
VERIFY(arguments.size() == 3);
auto r = static_cast<u8>(arguments[0].to_float() * 255.0f);
auto g = static_cast<u8>(arguments[1].to_float() * 255.0f);
auto b = static_cast<u8>(arguments[2].to_float() * 255.0f);
return Color(r, g, b);
}
RefPtr<DeviceCMYKColorSpace> DeviceCMYKColorSpace::the()
{
static auto instance = adopt_ref(*new DeviceCMYKColorSpace());
return instance;
}
Color DeviceCMYKColorSpace::color(const Vector<Value>& arguments) const
{
VERIFY(arguments.size() == 4);
auto c = arguments[0].to_float();
auto m = arguments[1].to_float();
auto y = arguments[2].to_float();
auto k = arguments[3].to_float();
return Color::from_cmyk(c, m, y, k);
}
}