173 lines
3.8 KiB
C++
173 lines
3.8 KiB
C++
/*! \file pirect.h
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* \ingroup Math
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* \brief
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* \~english Two-dimensional line class
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* \~russian Класс отрезка двумерной линии
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*/
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/*
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PIP - Platform Independent Primitives
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Two-dimensional line class
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Ivan Pelipenko peri4ko@yandex.ru, Andrey Bychkov work.a.b@yandex.ru
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef PILINE_H
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#define PILINE_H
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#include "pipoint.h"
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/*! \brief
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* \~english Two-dimensional line class
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* \~russian Класс отрезка двумерной линии
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* \~\details
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* \~russian
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* Этот класс описывает линию на плоскости в прямоугольной системе координат
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*/
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template<typename Type>
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class PIP_EXPORT PILine {
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static_assert(std::is_arithmetic<Type>::value, "Type must be arithmetic");
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public:
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PIPoint<Type> p0;
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PIPoint<Type> p1;
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//!
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PILine() {}
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//!
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PILine(const PIPoint<Type> & p0_, const PIPoint<Type> & p1_) {
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p0 = p0_;
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p1 = p1_;
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}
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//!
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PILine(Type x0, Type y0, Type x1, Type y1) {
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p0.set(x0, y0);
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p1.set(x1, y1);
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}
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//!
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PILine<Type> & set(const PIPoint<Type> & p0_, const PIPoint<Type> & p1_) {
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p0 = p0_;
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p1 = p1_;
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return *this;
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}
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//!
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PILine<Type> & set(Type x0, Type y0, Type x1, Type y1) {
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p0.set(x0, y0);
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p1.set(x1, y1);
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return *this;
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}
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//!
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bool isEmpty() const {
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return (p0 == p1);
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}
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//!
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Type width() const {return piAbs<Type>(p1.x - p0.x);}
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//!
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Type height() const {return piAbs<Type>(p1.y - p0.y);}
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//!
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PILine<Type> & translate(Type x, Type y) {
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p0.translate(x, y);
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p1.translate(x, y);
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return *this;
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}
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//!
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PILine<Type> & translate(const PIPoint<Type> & p) {
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p0.translate(p);
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p1.translate(p);
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return *this;
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}
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//!
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PILine<Type> translated(Type x, Type y) const {
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PILine<Type> l(*this);
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l.translate(x, y);
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return l;
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}
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//!
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PILine<Type> translated(const PIPoint<Type> & p) const {
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PILine<Type> l(*this);
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l.translate(p);
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return l;
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}
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//!
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PILine<Type> & move(Type x, Type y) {return translate(x, y);}
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//!
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PILine<Type> & move(const PIPoint<Type> & p) {return translate(p);}
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//!
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PILine<Type> moved(Type x, Type y) const {
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PILine<Type> l(*this);
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l.translate(x, y);
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return l;
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}
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//!
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PILine<Type> moved(const PIPoint<Type> & p) const {
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PILine<Type> l(*this);
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l.translate(p);
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return l;
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}
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//!
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void operator +=(Type x) {translate(x, x);}
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//!
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void operator +=(const PIPoint<Type> & p) {translate(p);}
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//!
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void operator -=(Type x) {translate(-x, -x);}
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//!
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void operator -=(const PIPoint<Type> & p) {translate(-p);}
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//!
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PILine<Type> operator +(const PIPoint<Type> & p) {return translated(p);}
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//!
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PILine<Type> operator -(const PIPoint<Type> & p) {return translated(-p);}
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//!
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bool operator ==(const PILine<Type> & r) const {return (p0 == r.p0 && p1 == r.p1);}
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//!
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bool operator !=(const PILine<Type> & r) const {return (p1 != r.p1 || p1 != r.p1);}
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};
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template<typename Type>
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PICout operator <<(PICout & s, const PILine<Type> & v) {
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s.setControl(0, true);
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s << "Line{" << v.p0 << ", " << v.p1 << "}";
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s.restoreControl();
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return s;
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}
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typedef PILine<int> PILinei;
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typedef PILine<uint> PILineu;
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typedef PILine<float> PILinef;
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typedef PILine<double> PILined;
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#endif // PILINE_H
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