Factory methods for heap-allocated SkPathEffect and SkXfermode objects.

samplecode/SampleAvoid.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 "SampleCode.h"
 #include "SkView.h"
 #include "SkCanvas.h"
@@ skipping 60 matching lines @@
             { 255-16,   SkAvoidXfermode::kTargetColor_Mode, 1, 1 },
         };
 
         paint.setShader(NULL);
         paint.setColor(SK_ColorMAGENTA);
 
         SkPaint frameP;
         frameP.setStyle(SkPaint::kStroke_Style);
 
         for (size_t i = 0; i < SK_ARRAY_COUNT(gData); i++) {
-            SkAvoidXfermode mode(SK_ColorGREEN, gData[i].fTolerance,
-                                 gData[i].fMode);
-            paint.setXfermode(&mode);
+            SkAutoTUnref<SkAvoidXfermode> mode(SkAvoidXfermode::Create(
+                SK_ColorGREEN, gData[i].fTolerance, gData[i].fMode));
+            paint.setXfermode(mode);
             int div = 3;
             SkRect rr = { 0, 0, r.width()/div, r.height()/div };
             rr.offset(r.width()/4 - rr.width()/2, r.height()/4 - rr.height()/2);
             rr.offset(r.width() * gData[i].fDX/2, r.height() * gData[i].fDY/2);
             canvas->drawRect(rr, paint);
             paint.setXfermode(NULL);
 
             canvas->drawRect(rr, frameP);
         }
     }
 
 private:
     typedef SampleView INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static SkView* MyFactory() {
     return new AvoidView;
 }
 
 static SkViewRegister reg(MyFactory);