add new tests

samplecode/SampleMegaStroke.cpp

+/*
+ * Copyright 2016 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 "SkCanvas.h"
+#include "SkPath.h"
+#include "SkRandom.h"
+
+class MegaStrokeView : public SampleView {
+public:
+    MegaStrokeView() {
+        fClip.set(0, 0, 950, 600);
+        fAngle = 0;
+        fPlusMinus = 0;
+        SkRandom rand;
+        fMegaPath.reset();
+        for (int index = 0; index < 921; ++index) {
+            for (int segs = 0; segs < 40; ++segs) {
+                fMegaPath.lineTo(SkIntToScalar(index), SkIntToScalar(rand.nextRangeU(500, 600)));
+            }
+        }
+    }
+
+protected:
+    // overrides from SkEventSink
+    bool onQuery(SkEvent* evt) override {
+        if (SampleCode::TitleQ(*evt)) {
+            SampleCode::TitleR(evt, "MegaStroke");
+            return true;
+        }
+
+        SkUnichar uni;
+        if (SampleCode::CharQ(*evt, &uni)) {
+           fClip.set(0, 0, 950, 600);
+        }
+        SkString str;
+        evt->getType(&str);
+        if (str == SkString("SampleCode_Key_Event")) {
+           fClip.set(0, 0, 950, 600);
+        }
+        return this->INHERITED::onQuery(evt);
+    }
+
+    void onDrawBackground(SkCanvas* canvas) override {
+    }
+
+    void onDrawContent(SkCanvas* canvas) override {
+        SkPaint paint;
+        paint.setAntiAlias(true);
+        paint.setARGB(255,255,153,0);
+        paint.setStyle(SkPaint::kStroke_Style);
+        paint.setStrokeWidth(1);
+
+        canvas->save();
+        canvas->clipRect(fClip);
+        canvas->clear(SK_ColorWHITE);
+        canvas->drawPath(fMegaPath, paint);
+        canvas->restore();
+
+        SkPaint divSimPaint;
+        divSimPaint.setColor(SK_ColorBLUE);
+            SkScalar x = SkScalarSin(fAngle * SK_ScalarPI / 180) * 200 + 250;
+            SkScalar y = SkScalarCos(fAngle * SK_ScalarPI / 180) * 200 + 250;
+
+        if ((fPlusMinus ^= 1)) {
+            fAngle += 5;
+        } else {
+            fAngle -= 5;
+        }
+        SkRect divSim = SkRect::MakeXYWH(x, y, 100, 100);
+        divSim.outset(30, 30);
+        canvas->drawRect(divSim, divSimPaint);
+        fClip = divSim;
+    }
+
+    void onSizeChange() override {
+        fClip.set(0, 0, 950, 600);
+    }
+
+    bool onAnimate(const SkAnimTimer& ) override {
+        return true;
+    }
+
+private:
+    SkPath      fMegaPath;
+    SkRect      fClip;
+    int         fAngle;
+    int         fPlusMinus;
+    typedef SampleView INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static SkView* MyFactory() { return new MegaStrokeView; }
+static SkViewRegister reg(MyFactory);