add SkAnimTimer, SPACE = pause/resume, ESP = stop

samplecode/SamplePathEffects.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 "SkAnimTimer.h"
 #include "SkView.h"
 #include "SkCanvas.h"
 #include "SkGradientShader.h"
 #include "SkPath.h"
 #include "SkRegion.h"
 #include "SkShader.h"
 #include "SkUtils.h"
 #include "Sk1DPathEffect.h"
 #include "SkCornerPathEffect.h"
 #include "SkPathMeasure.h"
@@ skipping 132 matching lines @@
 
         canvas->translate(0, 50);
 
         paint.setARGB(0xFF, 0, 0, 0);
         paint.setPathEffect(make_warp_pe(fPhase))->unref();
         TestRastBuilder testRastBuilder;
         paint.setRasterizer(testRastBuilder.detachRasterizer())->unref();
         canvas->drawPath(fPath, paint);
     }
 
-    bool onAnimatePulse(SkMSec curr, SkMSec prev) SK_OVERRIDE {
-        fPhase -= (curr - prev) * 0.04f;
+    bool onAnimate(const SkAnimTimer& timer) SK_OVERRIDE {
+        fPhase = timer.scaled(40);
         return true;
     }
 
 private:
     typedef SampleView INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static SkView* MyFactory() { return new PathEffectView; }
 static SkViewRegister reg(MyFactory);