| /* |
| * 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 "gm.h" |
| #include "SkBlurMask.h" |
| #include "SkBlurMaskFilter.h" |
| #include "SkCanvas.h" |
| #include "SkGraphics.h" |
| #include "SkLayerDrawLooper.h" |
| #include "SkRandom.h" |
| |
| #define WIDTH 200 |
| #define HEIGHT 200 |
| |
| class DrawLooperGM : public skiagm::GM { |
| public: |
| DrawLooperGM() : fLooper(NULL) { |
| this->setBGColor(0xFFDDDDDD); |
| } |
| |
| virtual ~DrawLooperGM() { |
| SkSafeUnref(fLooper); |
| } |
| |
| protected: |
| virtual SkISize onISize() override { |
| return SkISize::Make(520, 160); |
| } |
| |
| SkString onShortName() override { |
| return SkString("drawlooper"); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| this->init(); |
| |
| SkPaint paint; |
| paint.setAntiAlias(true); |
| sk_tool_utils::set_portable_typeface(&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); |
| } |
| |
| private: |
| SkLayerDrawLooper* fLooper; |
| |
| void init() { |
| if (fLooper) return; |
| |
| static const struct { |
| SkColor fColor; |
| SkPaint::Style fStyle; |
| SkScalar fWidth; |
| SkScalar fOffset; |
| SkScalar 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), SkIntToScalar(3) } |
| }; |
| |
| SkLayerDrawLooper::Builder looperBuilder; |
| |
| SkLayerDrawLooper::LayerInfo info; |
| info.fPaintBits = SkLayerDrawLooper::kStyle_Bit | SkLayerDrawLooper::kMaskFilter_Bit; |
| info.fColorMode = SkXfermode::kSrc_Mode; |
| |
| for (size_t i = 0; i < SK_ARRAY_COUNT(gParams); i++) { |
| info.fOffset.set(gParams[i].fOffset, gParams[i].fOffset); |
| SkPaint* paint = looperBuilder.addLayer(info); |
| paint->setColor(gParams[i].fColor); |
| paint->setStyle(gParams[i].fStyle); |
| paint->setStrokeWidth(gParams[i].fWidth); |
| if (gParams[i].fBlur > 0) { |
| SkMaskFilter* mf = SkBlurMaskFilter::Create(kNormal_SkBlurStyle, |
| SkBlurMask::ConvertRadiusToSigma(gParams[i].fBlur)); |
| paint->setMaskFilter(mf)->unref(); |
| } |
| } |
| fLooper = looperBuilder.detachLooper(); |
| } |
| |
| typedef GM INHERITED; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| static skiagm::GM* MyFactory(void*) { return new DrawLooperGM; } |
| static skiagm::GMRegistry reg(MyFactory); |