1 /*
2  * Copyright 2012 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 #ifndef SkPathOpsLine_DEFINED
8 #define SkPathOpsLine_DEFINED
9 
10 #include "SkPathOpsPoint.h"
11 
12 struct SkDLine {
13     SkDPoint fPts[2];
14 
15     const SkDPoint& operator[](int n) const { SkASSERT(n >= 0 && n < 2); return fPts[n]; }
16     SkDPoint& operator[](int n) { SkASSERT(n >= 0 && n < 2); return fPts[n]; }
17 
18     const SkDLine& set(const SkPoint pts[2]) {
19         fPts[0] = pts[0];
20         fPts[1] = pts[1];
21         return *this;
22     }
23 
24     double exactPoint(const SkDPoint& xy) const;
25     static double ExactPointH(const SkDPoint& xy, double left, double right, double y);
26     static double ExactPointV(const SkDPoint& xy, double top, double bottom, double x);
27 
28     double nearPoint(const SkDPoint& xy, bool* unequal) const;
29     bool nearRay(const SkDPoint& xy) const;
30     static double NearPointH(const SkDPoint& xy, double left, double right, double y);
31     static double NearPointV(const SkDPoint& xy, double top, double bottom, double x);
32     SkDPoint ptAtT(double t) const;
33 
34     void dump() const;
35     void dumpID(int ) const;
36     void dumpInner() const;
37 };
38 
39 #endif
40