| #include "SampleCode.h" |
| #include "SkView.h" |
| #include "SkCanvas.h" |
| #include "SkGraphics.h" |
| #include "SkRandom.h" |
| #include "SkLayerDrawLooper.h" |
| #include "SkBlurMaskFilter.h" |
| |
| #define WIDTH 200 |
| #define HEIGHT 200 |
| |
| class LooperView : public SkView { |
| public: |
| |
| SkLayerDrawLooper* fLooper; |
| |
| LooperView() { |
| static const struct { |
| SkColor fColor; |
| SkPaint::Style fStyle; |
| SkScalar fWidth; |
| SkScalar fOffset; |
| int fBlur; |
| } gParams[] = { |
| { SK_ColorWHITE, SkPaint::kStroke_Style, SkIntToScalar(1)*3/4, 0, 0 }, |
| { SK_ColorRED, SkPaint::kStroke_Style, SkIntToScalar(4), 0, 0 }, |
| { SK_ColorBLUE, SkPaint::kFill_Style, 0, 0, 0 }, |
| { 0x88000000, SkPaint::kFill_Style, 0, SkIntToScalar(10), 3 } |
| }; |
| |
| fLooper = new SkLayerDrawLooper; |
| |
| SkLayerDrawLooper::LayerInfo info; |
| info.fFlagsMask = SkPaint::kAntiAlias_Flag; |
| info.fPaintBits = SkLayerDrawLooper::kStyle_Bit | SkLayerDrawLooper::kMaskFilter_Bit; |
| info.fColorMode = SkXfermode::kSrc_Mode; |
| |
| for (int i = 0; i < SK_ARRAY_COUNT(gParams); i++) { |
| info.fOffset.set(gParams[i].fOffset, gParams[i].fOffset); |
| SkPaint* paint = fLooper->addLayer(info); |
| paint->setAntiAlias(true); |
| paint->setColor(gParams[i].fColor); |
| paint->setStyle(gParams[i].fStyle); |
| paint->setStrokeWidth(gParams[i].fWidth); |
| if (gParams[i].fBlur > 0) { |
| SkMaskFilter* mf = SkBlurMaskFilter::Create(SkIntToScalar(gParams[i].fBlur), |
| SkBlurMaskFilter::kNormal_BlurStyle); |
| paint->setMaskFilter(mf)->unref(); |
| } |
| } |
| } |
| |
| virtual ~LooperView() { |
| SkSafeUnref(fLooper); |
| } |
| |
| protected: |
| // overrides from SkEventSink |
| virtual bool onQuery(SkEvent* evt) { |
| if (SampleCode::TitleQ(*evt)) { |
| SampleCode::TitleR(evt, "DrawLooper"); |
| return true; |
| } |
| return this->INHERITED::onQuery(evt); |
| } |
| |
| void drawBG(SkCanvas* canvas) { |
| canvas->drawColor(0xFFDDDDDD); |
| // canvas->drawColor(SK_ColorWHITE); |
| } |
| |
| virtual void onDraw(SkCanvas* canvas) { |
| this->drawBG(canvas); |
| |
| SkPaint paint; |
| paint.setTextSize(SkIntToScalar(72)); |
| paint.setLooper(fLooper); |
| |
| canvas->drawCircle(SkIntToScalar(50), SkIntToScalar(50), |
| SkIntToScalar(30), paint); |
| |
| canvas->drawRectCoords(SkIntToScalar(150), SkIntToScalar(50), |
| SkIntToScalar(200), SkIntToScalar(100), paint); |
| |
| canvas->drawText("Looper", 6, SkIntToScalar(230), SkIntToScalar(100), |
| paint); |
| } |
| |
| virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) { |
| this->inval(NULL); |
| return this->INHERITED::onFindClickHandler(x, y); |
| } |
| |
| virtual bool onClick(Click* click) { |
| return this->INHERITED::onClick(click); |
| } |
| |
| private: |
| typedef SkView INHERITED; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| static SkView* MyFactory() { return new LooperView; } |
| static SkViewRegister reg(MyFactory); |
| |