msdfgen/core/Contour.h

36 lines
987 B
C++

#pragma once
#include <vector>
#include "types.h"
#include "EdgeHolder.h"
namespace msdfgen {
/// A single closed contour of a shape.
class Contour {
public:
/// The sequence of edges that make up the contour.
std::vector<EdgeHolder> edges;
/// Adds an edge to the contour.
void addEdge(const EdgeHolder &edge);
#ifdef MSDFGEN_USE_CPP11
void addEdge(EdgeHolder &&edge);
#endif
/// Creates a new edge in the contour and returns its reference.
EdgeHolder &addEdge();
/// Adjusts the bounding box to fit the contour.
void bound(real &l, real &b, real &r, real &t) const;
/// Adjusts the bounding box to fit the contour border's mitered corners.
void boundMiters(real &l, real &b, real &r, real &t, real border, real miterLimit, int polarity) const;
/// Computes the winding of the contour. Returns 1 if positive, -1 if negative.
int winding() const;
/// Reverses the sequence of edges on the contour.
void reverse();
};
}