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/*
* Author: Sven Gothel <sgothel@jausoft.com>
* Copyright (c) 2022-2024 Gothel Software e.K.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef JAU_RECTI2F_HPP_
#define JAU_RECTI2F_HPP_
#include <iostream>
#include <jau/int_math.hpp>
namespace jau::math {
/** \addtogroup Math
*
* @{
*/
/**
* Rectangle with x, y, width and height value_type components.
*
* Component and overall alignment is natural as sizeof(value_type),
* i.e. sizeof(value_type) == alignof(value_type)
*/
template<typename Value_type,
std::enable_if_t<std::is_integral_v<Value_type> &&
sizeof(Value_type) == alignof(Value_type), bool> = true>
class alignas(sizeof(Value_type)) RectI {
public:
typedef Value_type value_type;
typedef value_type* pointer;
typedef const value_type* const_pointer;
typedef value_type& reference;
typedef const value_type& const_reference;
typedef value_type* iterator;
typedef const value_type* const_iterator;
/** value alignment is sizeof(value_type) */
constexpr static int value_alignment = sizeof(value_type);
/** Number of value_type components */
constexpr static const size_t components = 4;
/** Size in bytes with value_alignment */
constexpr static const size_t byte_size = components * sizeof(value_type);
private:
value_type m_x;
value_type m_y;
value_type m_width;
value_type m_height;
public:
constexpr RectI() noexcept
: m_x(0), m_y(0), m_width(0), m_height(0) {}
constexpr RectI(const value_type xywh[/*4*/]) noexcept{
set(xywh);
}
constexpr RectI(const value_type x, const value_type y, const value_type width, const value_type height) noexcept {
set(x, y, width, height);
}
constexpr RectI(const RectI& o) noexcept = default;
constexpr RectI(RectI&& o) noexcept = default;
constexpr RectI& operator=(const RectI&) noexcept = default;
constexpr RectI& operator=(RectI&&) noexcept = default;
constexpr bool operator==(const RectI& rhs ) const noexcept {
if( this == &rhs ) {
return true;
}
return m_x == rhs.m_x && m_y == rhs.m_y &&
m_width == rhs.m_width &&
m_height == rhs.m_height;
}
/** TODO
constexpr bool operator<=>(const Recti_t& rhs ) const noexcept {
return ...
} */
/** this = { x, y, width, height }, returns this. */
constexpr RectI& set(const value_type x, const value_type y, const value_type width, const value_type height) noexcept
{ m_x = x; m_y = y; m_width = width; m_height= height; return *this; }
/** this = xywh, returns this. */
constexpr RectI& set(const_iterator xywh) noexcept
{ m_x = xywh[0]; m_y = xywh[1]; m_width = xywh[2]; m_height= xywh[3]; return *this; }
/** xywh = this, returns xywh. */
iterator get(iterator xywh) const noexcept
{ xywh[0] = m_x; xywh[1] = m_y; xywh[2] = m_width; xywh[3] = m_height; return xywh; }
constexpr value_type x() const noexcept { return m_x; }
constexpr value_type y() const noexcept { return m_y; }
constexpr value_type width() const noexcept { return m_width; }
constexpr value_type height() const noexcept { return m_height; }
constexpr void setX(const value_type x) noexcept { m_x = x; }
constexpr void setY(const value_type y) noexcept { m_y = y; }
constexpr void setWidth(const value_type width) noexcept { m_width = width; }
constexpr void setHeight(const value_type height) noexcept { m_height = height; }
/** Return true if area is zero. */
constexpr bool is_zero() const noexcept {
return 0 == m_width || 0 == m_height;
}
std::string toString() const noexcept
{ return std::to_string(m_x)+" / "+std::to_string(m_y)+" "+std::to_string(m_width)+" x "+std::to_string(m_height); }
};
template<typename T,
std::enable_if_t<std::numeric_limits<T>::is_integer, bool> = true>
std::ostream& operator<<(std::ostream& out, const RectI<T>& v) noexcept {
return out << v.toString();
}
typedef RectI<int> Recti;
static_assert(4 == Recti::components);
static_assert(sizeof(int) == Recti::value_alignment);
static_assert(sizeof(int) == alignof(Recti));
static_assert(sizeof(int)*4 == sizeof(Recti));
/**@}*/
} // namespace jau::math
#endif /* JAU_RECTI2F_HPP_ */
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