| |
| /* |
| * 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 "SkBlurDrawLooper.h" |
| |
| namespace skiagm { |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static void setup(SkPaint* paint, SkColor c, SkScalar strokeWidth) { |
| paint->setColor(c); |
| if (strokeWidth < 0) { |
| paint->setStyle(SkPaint::kFill_Style); |
| } else { |
| paint->setStyle(SkPaint::kStroke_Style); |
| paint->setStrokeWidth(strokeWidth); |
| } |
| } |
| |
| class ShadowsGM : public GM { |
| public: |
| SkPath fCirclePath; |
| SkRect fRect; |
| |
| protected: |
| void onOnceBeforeDraw() override { |
| this->setBGColor(sk_tool_utils::color_to_565(0xFFDDDDDD)); |
| fCirclePath.addCircle(SkIntToScalar(20), SkIntToScalar(20), SkIntToScalar(10) ); |
| fRect.set(SkIntToScalar(10), SkIntToScalar(10), |
| SkIntToScalar(30), SkIntToScalar(30)); |
| } |
| |
| SkString onShortName() override { |
| return SkString("shadows"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(200, 120); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| SkBlurDrawLooper* shadowLoopers[5]; |
| shadowLoopers[0] = |
| SkBlurDrawLooper::Create(SK_ColorBLUE, |
| SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(10)), |
| SkIntToScalar(5), SkIntToScalar(10), |
| SkBlurDrawLooper::kIgnoreTransform_BlurFlag | |
| SkBlurDrawLooper::kOverrideColor_BlurFlag | |
| SkBlurDrawLooper::kHighQuality_BlurFlag); |
| SkAutoUnref aurL0(shadowLoopers[0]); |
| shadowLoopers[1] = |
| SkBlurDrawLooper::Create(SK_ColorBLUE, |
| SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(10)), |
| SkIntToScalar(5), SkIntToScalar(10), |
| SkBlurDrawLooper::kIgnoreTransform_BlurFlag | |
| SkBlurDrawLooper::kOverrideColor_BlurFlag); |
| SkAutoUnref aurL1(shadowLoopers[1]); |
| shadowLoopers[2] = |
| SkBlurDrawLooper::Create(SK_ColorBLACK, |
| SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(5)), |
| SkIntToScalar(5), |
| SkIntToScalar(10), |
| SkBlurDrawLooper::kIgnoreTransform_BlurFlag | |
| SkBlurDrawLooper::kHighQuality_BlurFlag); |
| SkAutoUnref aurL2(shadowLoopers[2]); |
| shadowLoopers[3] = |
| SkBlurDrawLooper::Create(0x7FFF0000, |
| SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(5)), |
| SkIntToScalar(-5), SkIntToScalar(-10), |
| SkBlurDrawLooper::kIgnoreTransform_BlurFlag | |
| SkBlurDrawLooper::kOverrideColor_BlurFlag | |
| SkBlurDrawLooper::kHighQuality_BlurFlag); |
| SkAutoUnref aurL3(shadowLoopers[3]); |
| shadowLoopers[4] = |
| SkBlurDrawLooper::Create(SK_ColorBLACK, SkIntToScalar(0), |
| SkIntToScalar(5), SkIntToScalar(5), |
| SkBlurDrawLooper::kIgnoreTransform_BlurFlag | |
| SkBlurDrawLooper::kOverrideColor_BlurFlag | |
| SkBlurDrawLooper::kHighQuality_BlurFlag); |
| SkAutoUnref aurL4(shadowLoopers[4]); |
| |
| static const struct { |
| SkColor fColor; |
| SkScalar fStrokeWidth; |
| } gRec[] = { |
| { SK_ColorRED, -SK_Scalar1 }, |
| { SK_ColorGREEN, SkIntToScalar(4) }, |
| { SK_ColorBLUE, SkIntToScalar(0)}, |
| }; |
| |
| SkPaint paint; |
| paint.setAntiAlias(true); |
| for (size_t i = 0; i < SK_ARRAY_COUNT(shadowLoopers); ++i) { |
| SkAutoCanvasRestore acr(canvas, true); |
| |
| paint.setLooper(shadowLoopers[i]); |
| |
| canvas->translate(SkIntToScalar((unsigned int)i*40), SkIntToScalar(0)); |
| setup(&paint, gRec[0].fColor, gRec[0].fStrokeWidth); |
| canvas->drawRect(fRect, paint); |
| |
| canvas->translate(SkIntToScalar(0), SkIntToScalar(40)); |
| setup(&paint, gRec[1].fColor, gRec[1].fStrokeWidth); |
| canvas->drawPath(fCirclePath, paint); |
| |
| canvas->translate(SkIntToScalar(0), SkIntToScalar(40)); |
| setup(&paint, gRec[2].fColor, gRec[2].fStrokeWidth); |
| canvas->drawPath(fCirclePath, paint); |
| } |
| } |
| |
| private: |
| typedef GM INHERITED; |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static GM* MyFactory(void*) { return new ShadowsGM; } |
| static GMRegistry reg(MyFactory); |
| |
| } |