| /* |
| * 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 "SkBlurMask.h" |
| #include "SkCanvas.h" |
| #include "SkColorMatrixFilter.h" |
| #include "SkDiscretePathEffect.h" |
| #include "SkEmbossMaskFilter.h" |
| #include "SkGradientShader.h" |
| #include "SkPaint.h" |
| #include "SkView.h" |
| |
| |
| //#define COLOR 0xFFFF8844 |
| #define COLOR 0xFF888888 |
| |
| static void paint_proc0(SkPaint*) { |
| } |
| |
| static void paint_proc1(SkPaint* paint) { |
| paint->setMaskFilter(SkMaskFilter::MakeBlur( |
| kNormal_SkBlurStyle, |
| SkBlurMask::ConvertRadiusToSigma(2))); |
| } |
| |
| static void paint_proc2(SkPaint* paint) { |
| paint->setMaskFilter(SkEmbossMaskFilter::Make( |
| SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(1)), |
| { { SK_Scalar1, SK_Scalar1, SK_Scalar1 }, 0, 64, 16 })); |
| } |
| |
| static void paint_proc3(SkPaint* paint) { |
| SkColor colors[] = { SK_ColorRED, COLOR, SK_ColorBLUE }; |
| SkPoint pts[] = { { 3, 0 }, { 7, 5 } }; |
| paint->setShader(SkGradientShader::MakeLinear(pts, colors, nullptr, SK_ARRAY_COUNT(colors), |
| SkShader::kMirror_TileMode)); |
| } |
| |
| static void paint_proc5(SkPaint* paint) { |
| paint_proc3(paint); |
| paint_proc2(paint); |
| } |
| |
| typedef void (*PaintProc)(SkPaint*); |
| const PaintProc gPaintProcs[] = { |
| paint_proc0, |
| paint_proc1, |
| paint_proc2, |
| paint_proc3, |
| paint_proc5, |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| class EffectsView : public SampleView { |
| public: |
| SkPath fPath; |
| SkPaint fPaint[SK_ARRAY_COUNT(gPaintProcs)]; |
| |
| EffectsView() { |
| size_t i; |
| const float pts[] = { |
| 0, 0, |
| 10, 0, |
| 10, 5, |
| 20, -5, |
| 10, -15, |
| 10, -10, |
| 0, -10 |
| }; |
| fPath.moveTo(pts[0], pts[1]); |
| for (i = 2; i < SK_ARRAY_COUNT(pts); i += 2) { |
| fPath.lineTo(pts[i], pts[i+1]); |
| } |
| |
| for (i = 0; i < SK_ARRAY_COUNT(gPaintProcs); i++) { |
| fPaint[i].setAntiAlias(true); |
| fPaint[i].setColor(COLOR); |
| gPaintProcs[i](&fPaint[i]); |
| } |
| |
| SkColorMatrix cm; |
| cm.setRotate(SkColorMatrix::kG_Axis, 180); |
| cm.setIdentity(); |
| |
| this->setBGColor(0xFFDDDDDD); |
| } |
| |
| protected: |
| // overrides from SkEventSink |
| virtual bool onQuery(SkEvent* evt) { |
| if (SampleCode::TitleQ(*evt)) { |
| SampleCode::TitleR(evt, "Effects"); |
| return true; |
| } |
| return this->INHERITED::onQuery(evt); |
| } |
| |
| virtual void onDrawContent(SkCanvas* canvas) { |
| canvas->scale(3, 3); |
| canvas->translate(10, 30); |
| for (size_t i = 0; i < SK_ARRAY_COUNT(fPaint); i++) { |
| canvas->drawPath(fPath, fPaint[i]); |
| canvas->translate(32, 0); |
| } |
| } |
| |
| private: |
| typedef SampleView INHERITED; |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static SkView* MyFactory() { return new EffectsView; } |
| static SkViewRegister reg(MyFactory); |