Builder class for SkLayerRasterizer.

samplecode/ClockFaceView.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 115 matching lines @@
 };
 
 static SkPathEffect* makepe(float interp, SkTDArray<SkPoint>* pts) {
     SkMatrix    lattice;
     SkScalar    rad = 3 + SkIntToScalar(4) * (1 - interp);
     lattice.setScale(rad*2, rad*2, 0, 0);
     lattice.postSkew(SK_Scalar1/3, 0, 0, 0);
     return new Dot2DPathEffect(rad, lattice, pts);
 }
 
-static void r7(SkLayerRasterizer* rast, SkPaint& p, SkScalar interp) {
+static void r7(SkLayerRasterizer::Builder* rastBuilder, SkPaint& p, SkScalar interp) {
     p.setPathEffect(makepe(SkScalarToFloat(interp), NULL))->unref();
-    rast->addLayer(p);
+    rastBuilder->addLayer(p);
 #if 0
     p.setPathEffect(new InverseFillPE())->unref();
     p.setXfermodeMode(SkXfermode::kSrcIn_Mode);
     p.setXfermodeMode(SkXfermode::kClear_Mode);
     p.setAlpha((1 - interp) * 255);
-    rast->addLayer(p);
+    rastBuilder->addLayer(p);
 #endif
 }
 
 typedef void (*raster_proc)(SkLayerRasterizer*, SkPaint&);
 
 #include "SkXfermode.h"
 
 static void apply_shader(SkPaint* paint, float scale)
 {
     SkPaint p;
-    SkLayerRasterizer*  rast = new SkLayerRasterizer;
+    SkLayerRasterizer::Builder rastBuilder;
 
     p.setAntiAlias(true);
-    r7(rast, p, scale);
-    paint->setRasterizer(rast)->unref();
+    r7(&rastBuilder, p, scale);
+    paint->setRasterizer(rastBuilder.detachRasterizer())->unref();
 
     paint->setColor(SK_ColorBLUE);
 }
 
 class ClockFaceView : public SkView {
     SkTypeface* fFace;
     SkScalar fInterp;
     SkScalar fDx;
 
 public:
@@ skipping 74 matching lines @@
     }
 
 private:
     typedef SkView INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static SkView* MyFactory() { return new ClockFaceView; }
 static SkViewRegister reg(MyFactory);