PathBoundaries.h

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/* -*- mode: c++ -*- */
#ifndef _BOARD_PATH_BOUNDARIES_H_
#define _BOARD_PATH_BOUNDARIES_H_

#include <vector>
#include "board/Point.h"
#include "board/Shapes.h"
#include "board/Rect.h"
namespace LibBoard {

struct Path;

namespace Tools {

/*
 * An euclidean line a.x + b.y + c = 0
 */
struct EuclideanLine {
  EuclideanLine(double a, double b, double c)
    :a(a),b(b),c(c) {
  }
  EuclideanLine(Point p1, Point p2) {
    a = p1.y - p2.y;
    b = p2.x - p1.x;
    c = p1.x * (p2.y-p1.y) + p1.y * (p1.x-p2.x);
  }
  double a,b,c;
};


std::vector<Point>  pathBoundaryPoints(const Path & path,
                                       double strokeWidth,
                                       Shape::LineCap lineCap,
                                       Shape::LineJoin lineJoin,
                                       double miterLimit = 4.0);

Rect pathBoundingBox(const Path & path,
                     double strokeWidth,
                     Shape::LineCap lineCap,
                     Shape::LineJoin lineJoin,
                     double miterLimit = 4.0);





}  // namespace Tools

}  // namespace LibBoard

#endif /* _PATH_BOUNDARIES_H_ */