121 lines
2.8 KiB
C++
121 lines
2.8 KiB
C++
#ifndef TOONZ_PLUGIN_HELPER_UTILS_RECT_HPP__
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#define TOONZ_PLUGIN_HELPER_UTILS_RECT_HPP__
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#include <algorithm>
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#include <cmath>
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#include <cfloat>
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class ToonzRect
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{
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public:
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double x0, y0;
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double x1, y1;
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ToonzRect()
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: x0(0), y0(0), x1(0), y1(0) {}
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ToonzRect(double x0, double y0, double x1, double y1)
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: x0(x0), y0(y0), x1(x1), y1(y1) {}
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ToonzRect(const ToonzRect &toonzRect)
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: x0(toonzRect.x0), y0(toonzRect.y0), x1(toonzRect.x1), y1(toonzRect.y1) {}
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bool equals(double a, double b, double err = DBL_EPSILON) const
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{
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return fabs(a - b) < err;
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}
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ToonzRect operator+(const ToonzRect &toonzRect) const;
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ToonzRect operator*(const ToonzRect &toonzRect) const;
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ToonzRect &operator+=(const ToonzRect &toonzRect);
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ToonzRect &operator*=(const ToonzRect &toonzRect);
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bool operator==(const ToonzRect &toonzRect) const;
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bool isEmpty() const;
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bool isContained(const ToonzRect &toonzRect) const;
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bool isOverlapped(const ToonzRect &toonzRect) const;
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ToonzRect enlarge(double x, double y) const;
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};
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ToonzRect ToonzRect::operator+(const ToonzRect &toonzRect) const
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{
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if (isEmpty()) {
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return toonzRect;
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} else if (toonzRect.isEmpty()) {
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return *this;
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}
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return ToonzRect(std::min(x0, toonzRect.x0), std::min(y0, toonzRect.y0),
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std::max(x1, toonzRect.x1), std::max(y1, toonzRect.y1));
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}
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ToonzRect ToonzRect::operator*(const ToonzRect &toonzRect) const
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{
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if (isEmpty() ||
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toonzRect.isEmpty() ||
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toonzRect.x1 < x0 ||
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x1 < toonzRect.x0 ||
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toonzRect.y1 < y0 ||
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y1 < toonzRect.y0) {
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return ToonzRect();
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}
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return ToonzRect(std::max(x0, toonzRect.x0), std::max(y0, toonzRect.y0),
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std::min(x1, toonzRect.x1), std::min(y1, toonzRect.y1));
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}
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ToonzRect &ToonzRect::operator+=(const ToonzRect &toonzRect)
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{
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return *this = *this + toonzRect;
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}
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ToonzRect &ToonzRect::operator*=(const ToonzRect &toonzRect)
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{
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return *this = *this * toonzRect;
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}
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bool ToonzRect::operator==(const ToonzRect &toonzRect) const
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{
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return equals(x0, toonzRect.x0) &&
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equals(y0, toonzRect.y0) &&
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equals(x1, toonzRect.x1) &&
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equals(y1, toonzRect.y1);
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}
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bool ToonzRect::isEmpty() const
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{
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if ((equals(x0, x1) && equals(y0, y1)) ||
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x0 > x1 ||
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y0 > y1) {
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return true;
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}
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return false;
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}
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bool ToonzRect::isContained(const ToonzRect &toonzRect) const
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{
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return toonzRect.x0 <= x0 && x1 <= toonzRect.x1 &&
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toonzRect.y0 <= y0 && y1 <= toonzRect.y1;
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}
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bool ToonzRect::isOverlapped(const ToonzRect &toonzRect) const
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{
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return x0 <= toonzRect.x1 && x1 >= toonzRect.x0 &&
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y0 <= toonzRect.y1 && y1 >= toonzRect.y0;
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}
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ToonzRect ToonzRect::enlarge(double x, double y) const
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{
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if (isEmpty()) {
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return *this;
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}
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return ToonzRect(x0 - x, y0 - y, x1 + x, y1 + y);
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}
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class ToonzPoint
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{
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public:
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double x, y;
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ToonzPoint() : x(0), y(0) {}
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ToonzPoint(double x, double y) : x(x), y(y) {}
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};
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#endif
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