Artifact e931392faadb7d7b320b31d688aec4de9542e538296b5be741c85b3351e5251e:
- File
src/OFColor.h
— part of check-in
[496695d778]
at
2019-09-29 19:35:38
on branch trunk
— Either restrict subclassing or reserve ivar space
This allows ABI stability with the fragile ABI. (user: js, size: 2458) [annotate] [blame] [check-ins using] [more...]
/* * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, * 2018, 2019 * Jonathan Schleifer <js@heap.zone> * * All rights reserved. * * This file is part of ObjFW. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE.QPL included in * the packaging of this file. * * Alternatively, it may be distributed under the terms of the GNU General * Public License, either version 2 or 3, which can be found in the file * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this * file. */ #import "OFObject.h" OF_ASSUME_NONNULL_BEGIN /*! * @class OFColor OFColor.h ObjFW/OFColor.h * * @brief A class for storing a color. */ @interface OFColor: OFObject { float _red, _green, _blue, _alpha; OF_RESERVE_IVARS(4) } /*! * @brief Creates a new color with the specified red, green, blue and alpha * value. * * @param red The red value of the color, between 0.0 and 1.0 * @param green The green value of the color, between 0.0 and 1.0 * @param blue The blue value of the color, between 0.0 and 1.0 * @param alpha The alpha value of the color, between 0.0 and 1.0 * @return A new color with the specified red, green, blue and alpha value */ + (instancetype)colorWithRed: (float)red green: (float)green blue: (float)blue alpha: (float)alpha; /*! * @brief Initializes an already allocated color with the specified red, green, * blue and alpha value. * * @param red The red value of the color, between 0.0 and 1.0 * @param green The green value of the color, between 0.0 and 1.0 * @param blue The blue value of the color, between 0.0 and 1.0 * @param alpha The alpha value of the color, between 0.0 and 1.0 * @return A color initialized with the specified red, green, blue and alpha * value */ - (instancetype)initWithRed: (float)red green: (float)green blue: (float)blue alpha: (float)alpha; /*! * @brief Returns the red, green, blue and alpha value of the color. * * @param red A pointer to store the red value of the color * @param green A pointer to store the green value of the color * @param blue A pointer to store the blue value of the color * @param alpha An optional pointer to store the alpha of the color */ - (void)getRed: (float *)red green: (float *)green blue: (float *)blue alpha: (nullable float *)alpha; @end OF_ASSUME_NONNULL_END