SkPathOpsLine.h

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/*
 * Copyright 2012 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
#ifndef SkPathOpsLine_DEFINED
#define SkPathOpsLine_DEFINED
 
#include "include/core/SkPoint.h"
#include "include/core/SkTypes.h"
#include "src/pathops/SkPathOpsPoint.h"
 
struct SkDLine {
    SkDPoint fPts[2];
 
    const SkDPoint& operator[](int n) const { SkASSERT(n >= 0 && n < 2); return fPts[n]; }
    SkDPoint& operator[](int n) { SkASSERT(n >= 0 && n < 2); return fPts[n]; }
 
    const SkDLine& set(const SkPoint pts[2]) {
        fPts[0] = pts[0];
        fPts[1] = pts[1];
        return *this;
    }
 
    double exactPoint(const SkDPoint& xy) const;
    static double ExactPointH(const SkDPoint& xy, double left, double right, double y);
    static double ExactPointV(const SkDPoint& xy, double top, double bottom, double x);
 
    double nearPoint(const SkDPoint& xy, bool* unequal) const;
    bool nearRay(const SkDPoint& xy) const;
    static double NearPointH(const SkDPoint& xy, double left, double right, double y);
    static double NearPointV(const SkDPoint& xy, double top, double bottom, double x);
    SkDPoint ptAtT(double t) const;
 
    void dump() const;
    void dumpID(int ) const;
    void dumpInner() const;
};
 
#endif