move SkPath direction-as-computed into SkPathPriv

gm/strokefill.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 #include "SkCanvas.h"
-#include "SkPath.h"
+#include "SkPathPriv.h"
 #include "SkTypeface.h"
 
 namespace skiagm {
 
 class StrokeFillGM : public GM {
 public:
     StrokeFillGM() {
 
     }
 
@@ skipping 41 matching lines @@
 
         SkPath path2;
         path2.setFillType(SkPath::kWinding_FillType);
         path2.addCircle(x + SkIntToScalar(120), y + SkIntToScalar(200), SkIntToScalar(50), SkPath::kCCW_Direction);
         path2.addCircle(x + SkIntToScalar(120), y + SkIntToScalar(200), SkIntToScalar(40), SkPath::kCW_Direction);
         canvas->drawPath(path2, paint);
 
         path2.reset();
         path2.addCircle(x + SkIntToScalar(240), y + SkIntToScalar(200), SkIntToScalar(50), SkPath::kCCW_Direction);
         canvas->drawPath(path2, paint);
-        SkASSERT(path2.cheapIsDirection(SkPath::kCCW_Direction));
+        SkASSERT(SkPathPriv::CheapIsFirstDirection(path2, SkPathPriv::kCCW_FirstDirection));
 
         path2.reset();
-        SkASSERT(!path2.cheapComputeDirection(NULL));
+        SkASSERT(!SkPathPriv::CheapComputeFirstDirection(path2, NULL));
         path2.addCircle(x + SkIntToScalar(360), y + SkIntToScalar(200), SkIntToScalar(50), SkPath::kCW_Direction);
-        SkASSERT(path2.cheapIsDirection(SkPath::kCW_Direction));
+        SkASSERT(SkPathPriv::CheapIsFirstDirection(path2, SkPathPriv::kCW_FirstDirection));
         canvas->drawPath(path2, paint);
 
         SkRect r = SkRect::MakeXYWH(x - SkIntToScalar(50), y + SkIntToScalar(280),
                                     SkIntToScalar(100), SkIntToScalar(100));
         SkPath path3;
         path3.setFillType(SkPath::kWinding_FillType);
         path3.addRect(r, SkPath::kCW_Direction);
         r.inset(SkIntToScalar(10), SkIntToScalar(10));
         path3.addRect(r, SkPath::kCCW_Direction);
         canvas->drawPath(path3, paint);
 
         r = SkRect::MakeXYWH(x + SkIntToScalar(70), y + SkIntToScalar(280), 
                              SkIntToScalar(100), SkIntToScalar(100));
         SkPath path4;
         path4.setFillType(SkPath::kWinding_FillType);
         path4.addRect(r, SkPath::kCCW_Direction);
         r.inset(SkIntToScalar(10), SkIntToScalar(10));
         path4.addRect(r, SkPath::kCW_Direction);
         canvas->drawPath(path4, paint);
 
         r = SkRect::MakeXYWH(x + SkIntToScalar(190), y + SkIntToScalar(280), 
                              SkIntToScalar(100), SkIntToScalar(100));
         path4.reset();
-        SkASSERT(!path4.cheapComputeDirection(NULL));
+        SkASSERT(!SkPathPriv::CheapComputeFirstDirection(path4, NULL));
         path4.addRect(r, SkPath::kCCW_Direction);
-        SkASSERT(path4.cheapIsDirection(SkPath::kCCW_Direction));
+        SkASSERT(SkPathPriv::CheapIsFirstDirection(path4, SkPathPriv::kCCW_FirstDirection));
         path4.moveTo(0, 0); // test for crbug.com/247770
         canvas->drawPath(path4, paint);
 
         r = SkRect::MakeXYWH(x + SkIntToScalar(310), y + SkIntToScalar(280), 
                              SkIntToScalar(100), SkIntToScalar(100));
         path4.reset();
-        SkASSERT(!path4.cheapComputeDirection(NULL));
+        SkASSERT(!SkPathPriv::CheapComputeFirstDirection(path4, NULL));
         path4.addRect(r, SkPath::kCW_Direction);
-        SkASSERT(path4.cheapIsDirection(SkPath::kCW_Direction));
+        SkASSERT(SkPathPriv::CheapIsFirstDirection(path4, SkPathPriv::kCW_FirstDirection));
         path4.moveTo(0, 0); // test for crbug.com/247770
         canvas->drawPath(path4, paint);
     }
 
 private:
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM(return SkNEW(StrokeFillGM);)
 
 }