SampleBigGradient.cpp revision e16efc1882ab34a0bb3ae361a2d37f840044cf87
1 2/* 3 * Copyright 2011 Google Inc. 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8#include "SampleCode.h" 9#include "SkView.h" 10#include "SkCanvas.h" 11#include "SkGradientShader.h" 12 13static SkShader* make_grad(SkScalar w, SkScalar h) { 14 SkColor colors[] = { 0xFF000000, 0xFF333333 }; 15 SkPoint pts[] = { { 0, 0 }, { w, h } }; 16 return SkGradientShader::CreateLinear(pts, colors, NULL, 2, 17 SkShader::kClamp_TileMode); 18} 19 20class BigGradientView : public SampleView { 21public: 22 BigGradientView() {} 23 24protected: 25 // overrides from SkEventSink 26 virtual bool onQuery(SkEvent* evt) { 27 if (SampleCode::TitleQ(*evt)) { 28 SampleCode::TitleR(evt, "BigGradient"); 29 return true; 30 } 31 return this->INHERITED::onQuery(evt); 32 } 33 34 virtual void onDrawContent(SkCanvas* canvas) { 35 SkRect r; 36 r.set(0, 0, this->width(), this->height()); 37 SkPaint p; 38 p.setShader(make_grad(this->width(), this->height()))->unref(); 39 canvas->drawRect(r, p); 40 } 41 42private: 43 typedef SampleView INHERITED; 44}; 45 46/////////////////////////////////////////////////////////////////////////////// 47 48static SkView* MyFactory() { return new BigGradientView; } 49static SkViewRegister reg(MyFactory); 50