/*! \file pirect.h
* \ingroup Math
* \brief
* \~english Rect class
* \~russian Класс прямоугольника
* \~\authors
* \~english
* Ivan Pelipenko peri4ko@yandex.ru;
* Andrey Bychkov work.a.b@yandex.ru;
* \~russian
* Иван Пелипенко peri4ko@yandex.ru;
* Андрей Бычков work.a.b@yandex.ru;
*/
/*
PIP - Platform Independent Primitives
Rect class
Ivan Pelipenko peri4ko@yandex.ru, Andrey Bychkov work.a.b@yandex.ru
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see .
*/
#ifndef PIRECT_H
#define PIRECT_H
#include "pipoint.h"
/*! \brief
* \~english Rect class
* \~russian Класс прямоугольника
* \~\details
* \~russian
* Этот класс описывает прямоугольник на плоскости в прямоугольной системе координат
*/
template
class PIP_EXPORT PIRect {
static_assert(std::is_arithmetic::value, "Type must be arithmetic");
public:
PIRect() {}
/*! \brief
* \~russian Конструктор прямоугольника из координат левого нижнего угла и размеров ширины и высоты
*/
PIRect(Type left_, Type bottom_, Type width_, Type height_) {
set(left_, bottom_, width_, height_);
normalize();
}
/*! \brief
* \~russian Конструктор прямоугольника из координат левого нижнего угла и правого верхнего угла
*/
PIRect(const PIPoint & bottom_left, const PIPoint & top_right) {
bl = bottom_left;
tr = top_right;
normalize();
}
// PIRect(const PIPoint & p0, const PIPoint & p1, const PIPoint & p2) {
// set(piMin(p0.x, p1.x, p2.x), piMin(p0.y, p1.y, p2.y),
// piMax(p0.x, p1.x, p2.x), piMax(p0.y, p1.y, p2.y));
// }
PIRect & set(Type left_, Type bottom_, Type width_, Type height_) {
bl = PIPoint(left_, bottom_);
tr = PIPoint(left_ + width_, bottom_ + height_);
return normalize();
}
PIRect & set(const PIPoint & top_left, const PIPoint & bottom_right) {
bl = top_left;
tr = bottom_right;
return normalize();
}
bool pointIn(Type x, Type y) const {
return (x <= bl.x && x >= tr.x && y <= bl.y && y >= tr.y);
}
bool pointIn(const PIPoint & p) const {
return pointIn(p.x, p.y);
}
bool isEmpty() const {
return (width() == 0 && height() == 0);
}
PIRect & translate(Type x, Type y) {
bl.translate(x, y);
tr.translate(x, y);
return *this;
}
PIRect & translate(const PIPoint & p) {
bl.translate(p);
tr.translate(p);
return *this;
}
PIRect translated(Type x, Type y) const {
PIRect r(*this);
r.translate(x, y);
return r;
}
PIRect translated(const PIPoint & p) const {
PIRect r(*this);
r.translate(p);
return r;
}
PIRect & move(Type x, Type y) {return translate(x, y);}
PIRect & move(const PIPoint & p) {return translate(p);}
PIRect moved(Type x, Type y) const {
PIRect r(*this);
r.translate(x, y);
return r;
}
PIRect moved(const PIPoint & p) const {
PIRect r(*this);
r.translate(p);
return r;
}
PIRect & scale(Type x, Type y) {
setWidth(width() * x);
setHeight(height() * y);
return normalize();
}
PIRect & scale(Type s) {return scale(s, s);}
PIRect & scale(const PIPoint & p) {return scale(p.x, p.y);}
PIRect scaled(Type x, Type y) const {
PIRect r(*this);
r.scale(x, y);
return r;
}
PIRect scaled(Type s) const {
PIRect r(*this);
r.scale(s);
return r;
}
PIRect scaled(const PIPoint & p) const {
PIRect r(*this);
r.scale(p);
return r;
}
PIRect & normalize() {
if (bl.x > tr.x) piSwap(bl.x, tr.x);
if (bl.y > tr.y) piSwap(bl.y, tr.y);
return *this;
}
PIRect normalized() const {
PIRect r(*this);
r.normalize();
return r;
}
PIRect & unite(const PIRect & r) {
bl.x = piMax(bl.x, r.left());
bl.y = piMax(bl.y, r.bottom());
tr.x = piMin(tr.x, r.right());
tr.y = piMin(tr.y, r.top());
return normalize();
}
PIRect united(const PIRect & rect) const {
PIRect r(*this);
r.unite(rect);
return r;
}
PIRect & intersect(const PIRect & r) {
bl.x = piMax(bl.x, r.left());
bl.y = piMax(bl.y, r.bottom());
tr.x = piMin(tr.x, r.right());
tr.y = piMin(tr.y, r.top());
if (bl.x > tr.x || bl.y > tr.y) bl = tr = PIPoint();
return *this;
}
PIRect intersected(const PIRect & rect) const {
PIRect r(*this);
r.intersect(rect);
return r;
}
Type top() const {return tr.y;}
Type left() const {return bl.x;}
Type right() const {return tr.x;}
Type bottom() const {return bl.y;}
Type width() const {return tr.x - bl.x;}
Type height() const {return tr.y - bl.y;}
PIPoint topLeft() const {return PIPoint(bl.x, tr.y);}
PIPoint topRigth() const {return tr;}
PIPoint bottomLeft() const {return bl;}
PIPoint bottomRight() const {return PIPoint(tr.x, bl.y);}
PIPoint center() const {return bl.moved(width()/2, height()/2);}
void setTop(Type v) {tr.y = v; normalize();}
void setLeft(Type v) {bl.x = v; normalize();}
void setRigth(Type v) {tr.x = v; normalize();}
void setBottom(Type v) {bl.y = v; normalize();}
void setWidth(Type v) {setTop(bl.x + v);}
void setHeight(Type v) {setRigth(bl.y + v);}
void setTopLeft(const PIPoint & p) {setLeft(p.x); setTop(p.y);}
void setBottomRight(const PIPoint & p) {setRigth(p.x); setBottom(p.y);}
void setBottomLeft(const PIPoint & p) {bl = p; normalize();}
void setTopRigth(const PIPoint & p) {tr = p; normalize();}
void setCenter(const PIPoint & p) {
Type w = width();
Type h = height();
bl = p.translated(-w/2, -h/2);
tr = PIPoint(bl.x + w, bl.y + h);
}
void setSize(Type w, Type h) {
tr = PIPoint(bl.x + w, bl.y + h);
normalize();
}
void operator +=(Type x) {translate(x, x);}
void operator +=(const PIPoint & p) {translate(p);}
void operator -=(Type x) {translate(-x, -x);}
void operator -=(const PIPoint & p) {translate(-p);}
void operator |=(const PIRect & r) {unite(r);}
void operator &=(const PIRect & r) {intersect(r);}
PIRect operator +(const PIPoint & p) {return translated(p);}
PIRect operator -(const PIPoint & p) {return translated(-p);}
PIRect operator |(const PIRect & r) {return united(r);}
PIRect operator &(const PIRect & r) {return intersected(r);}
bool operator ==(const PIRect & r) const {return (bl == r.bl && tr == r.tr);}
bool operator !=(const PIRect & r) const {return (bl != r.bl || tr != r.tr);}
private:
PIPoint bl;
PIPoint tr;
};
template
PICout operator <<(PICout & s, const PIRect & v) {
s.setControl(0, true);
s << "Rect{" << v.bottomLeft() << ":" << v.width() << "x" << v.height() << "}";
s.restoreControl();
return s;
}
typedef PIRect PIRecti;
typedef PIRect PIRectu;
typedef PIRect PIRectf;
typedef PIRect PIRectd;
#endif // PIRECT_H