11cab2921ab279367f8206cdadc9259d12e603548Derek Sollenberger 21cab2921ab279367f8206cdadc9259d12e603548Derek Sollenberger/* 31cab2921ab279367f8206cdadc9259d12e603548Derek Sollenberger * Copyright 2011 Google Inc. 41cab2921ab279367f8206cdadc9259d12e603548Derek Sollenberger * 51cab2921ab279367f8206cdadc9259d12e603548Derek Sollenberger * Use of this source code is governed by a BSD-style license that can be 61cab2921ab279367f8206cdadc9259d12e603548Derek Sollenberger * found in the LICENSE file. 71cab2921ab279367f8206cdadc9259d12e603548Derek Sollenberger */ 80b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger#include "SampleCode.h" 90b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger#include "SkView.h" 100b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger#include "SkCanvas.h" 110b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger#include "SkGraphics.h" 120b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger#include "SkRandom.h" 130b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger#include "SkLayerDrawLooper.h" 140b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger#include "SkBlurMaskFilter.h" 150b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 160b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger#define WIDTH 200 170b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger#define HEIGHT 200 180b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 190b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenbergerclass LooperView : public SampleView { 200b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenbergerpublic: 210b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 220b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger SkLayerDrawLooper* fLooper; 230b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 240b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger LooperView() { 250b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger static const struct { 260b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger SkColor fColor; 270b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger SkPaint::Style fStyle; 280b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger SkScalar fWidth; 290b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger SkScalar fOffset; 300b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger int fBlur; 310b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger } gParams[] = { 320b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger { SK_ColorWHITE, SkPaint::kStroke_Style, SkIntToScalar(1)*3/4, 0, 0 }, 330b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger { SK_ColorRED, SkPaint::kStroke_Style, SkIntToScalar(4), 0, 0 }, 340b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger { SK_ColorBLUE, SkPaint::kFill_Style, 0, 0, 0 }, 350b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger { 0x88000000, SkPaint::kFill_Style, 0, SkIntToScalar(10), 3 } 360b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger }; 370b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 380b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger fLooper = new SkLayerDrawLooper; 390b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 400b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger SkLayerDrawLooper::LayerInfo info; 410b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger info.fFlagsMask = SkPaint::kAntiAlias_Flag; 420b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger info.fPaintBits = SkLayerDrawLooper::kStyle_Bit | SkLayerDrawLooper::kMaskFilter_Bit; 430b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger info.fColorMode = SkXfermode::kSrc_Mode; 440b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 450b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger for (size_t i = 0; i < SK_ARRAY_COUNT(gParams); i++) { 460b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger info.fOffset.set(gParams[i].fOffset, gParams[i].fOffset); 470b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger SkPaint* paint = fLooper->addLayer(info); 480b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger paint->setAntiAlias(true); 490b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger paint->setColor(gParams[i].fColor); 500b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger paint->setStyle(gParams[i].fStyle); 510b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger paint->setStrokeWidth(gParams[i].fWidth); 520b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger if (gParams[i].fBlur > 0) { 530b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger SkMaskFilter* mf = SkBlurMaskFilter::Create(SkIntToScalar(gParams[i].fBlur), 540b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger SkBlurMaskFilter::kNormal_BlurStyle); 550b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger paint->setMaskFilter(mf)->unref(); 560b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger } 570b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger } 580b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 590b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger this->setBGColor(0xFFDDDDDD); 600b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger } 610b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 620b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger virtual ~LooperView() { 630b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger SkSafeUnref(fLooper); 640b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger } 650b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 660b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenbergerprotected: 670b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger // overrides from SkEventSink 680b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger virtual bool onQuery(SkEvent* evt) { 690b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger if (SampleCode::TitleQ(*evt)) { 700b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger SampleCode::TitleR(evt, "DrawLooper"); 710b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger return true; 720b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger } 730b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger return this->INHERITED::onQuery(evt); 740b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger } 750b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 760b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger virtual void onDrawContent(SkCanvas* canvas) { 770b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger SkPaint paint; 780b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger paint.setTextSize(SkIntToScalar(72)); 790b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger paint.setLooper(fLooper); 800b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 810b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger canvas->drawCircle(SkIntToScalar(50), SkIntToScalar(50), 820b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger SkIntToScalar(30), paint); 830b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 840b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger canvas->drawRectCoords(SkIntToScalar(150), SkIntToScalar(50), 850b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger SkIntToScalar(200), SkIntToScalar(100), paint); 860b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 870b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger canvas->drawText("Looper", 6, SkIntToScalar(230), SkIntToScalar(100), 880b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger paint); 890b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger } 900b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 910b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenbergerprivate: 920b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger typedef SampleView INHERITED; 930b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger}; 940b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 950b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger////////////////////////////////////////////////////////////////////////////// 960b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 970b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenbergerstatic SkView* MyFactory() { return new LooperView; } 980b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenbergerstatic SkViewRegister reg(MyFactory); 990b15698a8c76bb8abc1b555c1d91892669b4118fDerek Sollenberger 100