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/**
* Copyright (c) 2024, Timothy Stack
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Timothy Stack nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*/
#ifndef color_spaces_hh
#define color_spaces_hh
struct rgb_color {
explicit rgb_color(short r = -1, short g = -1, short b = -1)
: rc_r(r), rc_g(g), rc_b(b)
{
}
bool empty() const
{
return this->rc_r == -1 && this->rc_g == -1 && this->rc_b == -1;
}
bool operator==(const rgb_color& rhs) const;
bool operator!=(const rgb_color& rhs) const;
bool operator<(const rgb_color& rhs) const;
bool operator>(const rgb_color& rhs) const;
bool operator<=(const rgb_color& rhs) const;
bool operator>=(const rgb_color& rhs) const;
short rc_r;
short rc_g;
short rc_b;
};
struct lab_color {
lab_color() : lc_l(0), lc_a(0), lc_b(0) {}
explicit lab_color(const rgb_color& rgb);
double deltaE(const lab_color& other) const;
bool sufficient_contrast(const lab_color& other) const;
lab_color& operator=(const lab_color& other)
{
this->lc_l = other.lc_l;
this->lc_a = other.lc_a;
this->lc_b = other.lc_b;
return *this;
}
bool operator==(const lab_color& rhs) const;
bool operator!=(const lab_color& rhs) const;
bool operator<(const lab_color& rhs) const;
bool operator>(const lab_color& rhs) const;
bool operator<=(const lab_color& rhs) const;
bool operator>=(const lab_color& rhs) const;
double lc_l;
double lc_a;
double lc_b;
};
#endif
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