pathops work in progress

src/pathops/SkIntersectionHelper.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "SkOpContour.h"
 #include "SkPath.h"
 
+#if SK_DEBUG
+#include "SkPathOpsPoint.h"
+#endif
+
 class SkIntersectionHelper {
 public:
     enum SegmentType {
         kHorizontalLine_Segment = -1,
         kVerticalLine_Segment = 0,
         kLine_Segment = SkPath::kLine_Verb,
         kQuad_Segment = SkPath::kQuad_Verb,
         kCubic_Segment = SkPath::kCubic_Verb,
     };
 
@@ skipping 54 matching lines @@
     }
 
     bool isNear(double t1, double t2, const SkDPoint& pt1, const SkDPoint& pt2) const {
         const SkOpSegment& segment = fContour->segments()[fIndex];
         double mid = (t1 + t2) / 2;
         SkDPoint midPtByT = segment.dPtAtT(mid);
         SkDPoint midPtByAvg = SkDPoint::Mid(pt1, pt2);
         return midPtByT.approximatelyEqual(midPtByAvg);
     }
 
+    bool isPartial(double t1, double t2, const SkDPoint& pt1, const SkDPoint& pt2) const {
+        const SkOpSegment& segment = fContour->segments()[fIndex];
+        double mid = (t1 + t2) / 2;
+        SkDPoint midPtByT = segment.dPtAtT(mid);
+        SkDPoint midPtByAvg = SkDPoint::Mid(pt1, pt2);
+        return midPtByT.approximatelyPEqual(midPtByAvg);
+    }
+
     SkScalar left() const {
         return bounds().fLeft;
     }
 
     const SkPoint* pts() const {
         return fContour->segments()[fIndex].pts();
     }
 
     SkScalar right() const {
         return bounds().fRight;
@@ skipping 36 matching lines @@
     }
 
     SkScalar y() const {
         return bounds().fTop;
     }
 
     bool yFlipped() const {
         return y() != pts()[0].fY;
     }
 
+#ifdef SK_DEBUG
+    void dump() {
+        SkDPoint::dump(pts()[0]);
+        SkDPoint::dump(pts()[1]);
+        if (verb() >= SkPath::kQuad_Verb) {
+            SkDPoint::dump(pts()[2]);
+        }
+        if (verb() >= SkPath::kCubic_Verb) {
+            SkDPoint::dump(pts()[3]);
+        }
+    }
+#endif
+
 private:
     SkOpContour* fContour;
     int fIndex;
     int fLast;
 };