18c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com/* 28c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com * Copyright 2011 Google Inc. 38c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com * 48c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com * Use of this source code is governed by a BSD-style license that can be 58c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com * found in the LICENSE file. 68c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com */ 7d3ebb48320cf1b7e969974673e4bd7743816985ebungeman 88c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com#include "gm.h" 9cecd3ac9d04c16c1c2b3c18a3f0eedd4318c1ddebsalomon@google.com#include "SkGradientShader.h" 10d3ebb48320cf1b7e969974673e4bd7743816985ebungeman#include "SkPath.h" 118c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com 128c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.comnamespace skiagm { 138c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com 148c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.comclass FillTypePerspGM : public GM { 158c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com SkPath fPath; 168c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.compublic: 17d42e3f60cd571afb6c0f1837f9e0996bfe149001reed@google.com FillTypePerspGM() {} 18d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 19d42e3f60cd571afb6c0f1837f9e0996bfe149001reed@google.com void makePath() { 20d42e3f60cd571afb6c0f1837f9e0996bfe149001reed@google.com if (fPath.isEmpty()) { 21d42e3f60cd571afb6c0f1837f9e0996bfe149001reed@google.com const SkScalar radius = SkIntToScalar(45); 22d42e3f60cd571afb6c0f1837f9e0996bfe149001reed@google.com fPath.addCircle(SkIntToScalar(50), SkIntToScalar(50), radius); 23d42e3f60cd571afb6c0f1837f9e0996bfe149001reed@google.com fPath.addCircle(SkIntToScalar(100), SkIntToScalar(100), radius); 24d42e3f60cd571afb6c0f1837f9e0996bfe149001reed@google.com } 258c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com } 26d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 278c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.comprotected: 28a90c6803865766d28e92091f56f718f5e41fe80fcommit-bot@chromium.org 2936352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkString onShortName() override { 308c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com return SkString("filltypespersp"); 318c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com } 328c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com 3336352bf5e38f45a70ee4f4fc132a38048d38206dmtklein SkISize onISize() override { 34f539318f0d3dba743ec1886d5d9df0fb1be628a1tfarina return SkISize::Make(835, 840); 358c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com } 368c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com 378c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com void showPath(SkCanvas* canvas, int x, int y, SkPath::FillType ft, 388c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com SkScalar scale, const SkPaint& paint) { 398c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com const SkRect r = { 0, 0, SkIntToScalar(150), SkIntToScalar(150) }; 408c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com 418c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->save(); 428c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->translate(SkIntToScalar(x), SkIntToScalar(y)); 438c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->clipRect(r); 448c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->drawColor(SK_ColorWHITE); 458c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com fPath.setFillType(ft); 468c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->translate(r.centerX(), r.centerY()); 478c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->scale(scale, scale); 488c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->translate(-r.centerX(), -r.centerY()); 498c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->drawPath(fPath, paint); 508c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->restore(); 518c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com } 528c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com 538c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com void showFour(SkCanvas* canvas, SkScalar scale, bool aa) { 548c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com SkPaint paint; 558c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com SkPoint center = SkPoint::Make(SkIntToScalar(100), SkIntToScalar(100)); 568c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com SkColor colors[] = {SK_ColorBLUE, SK_ColorRED, SK_ColorGREEN}; 578c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com SkScalar pos[] = {0, SK_ScalarHalf, SK_Scalar1}; 582ad1aa67c6894696cdd65ec56057f81031d1c24areed paint.setShader(SkGradientShader::MakeRadial(center, 598c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com SkIntToScalar(100), 608c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com colors, 618c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com pos, 628c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com SK_ARRAY_COUNT(colors), 632ad1aa67c6894696cdd65ec56057f81031d1c24areed SkShader::kClamp_TileMode)); 648c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com paint.setAntiAlias(aa); 658c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com 668c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com showPath(canvas, 0, 0, SkPath::kWinding_FillType, 678c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com scale, paint); 688c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com showPath(canvas, 200, 0, SkPath::kEvenOdd_FillType, 698c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com scale, paint); 708c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com showPath(canvas, 00, 200, SkPath::kInverseWinding_FillType, 718c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com scale, paint); 728c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com showPath(canvas, 200, 200, SkPath::kInverseEvenOdd_FillType, 738c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com scale, paint); 748c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com } 758c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com 7636352bf5e38f45a70ee4f4fc132a38048d38206dmtklein void onDraw(SkCanvas* canvas) override { 77d42e3f60cd571afb6c0f1837f9e0996bfe149001reed@google.com this->makePath(); 78d42e3f60cd571afb6c0f1837f9e0996bfe149001reed@google.com 798c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com // do perspective drawPaint as the background; 808c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com SkPaint bkgnrd; 81cecd3ac9d04c16c1c2b3c18a3f0eedd4318c1ddebsalomon@google.com SkPoint center = SkPoint::Make(SkIntToScalar(100), 82cecd3ac9d04c16c1c2b3c18a3f0eedd4318c1ddebsalomon@google.com SkIntToScalar(100)); 83cecd3ac9d04c16c1c2b3c18a3f0eedd4318c1ddebsalomon@google.com SkColor colors[] = {SK_ColorBLACK, SK_ColorCYAN, 84cecd3ac9d04c16c1c2b3c18a3f0eedd4318c1ddebsalomon@google.com SK_ColorYELLOW, SK_ColorWHITE}; 85cecd3ac9d04c16c1c2b3c18a3f0eedd4318c1ddebsalomon@google.com SkScalar pos[] = {0, SK_ScalarHalf / 2, 86cecd3ac9d04c16c1c2b3c18a3f0eedd4318c1ddebsalomon@google.com 3 * SK_ScalarHalf / 2, SK_Scalar1}; 872ad1aa67c6894696cdd65ec56057f81031d1c24areed bkgnrd.setShader(SkGradientShader::MakeRadial(center, 882ad1aa67c6894696cdd65ec56057f81031d1c24areed SkIntToScalar(1000), 892ad1aa67c6894696cdd65ec56057f81031d1c24areed colors, 902ad1aa67c6894696cdd65ec56057f81031d1c24areed pos, 912ad1aa67c6894696cdd65ec56057f81031d1c24areed SK_ARRAY_COUNT(colors), 922ad1aa67c6894696cdd65ec56057f81031d1c24areed SkShader::kClamp_TileMode)); 938c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->save(); 948c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->translate(SkIntToScalar(100), SkIntToScalar(100)); 958c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com SkMatrix mat; 968c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com mat.reset(); 973f43f8ab9cd3ba0ea83f5ae0659c21f101dfca7areed mat.setPerspY(SK_Scalar1 / 1000); 988c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->concat(mat); 998c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->drawPaint(bkgnrd); 1008c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->restore(); 1018c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com 1028c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com // draw the paths in perspective 1038c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com SkMatrix persp; 1048c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com persp.reset(); 1053f43f8ab9cd3ba0ea83f5ae0659c21f101dfca7areed persp.setPerspX(-SK_Scalar1 / 1800); 1063f43f8ab9cd3ba0ea83f5ae0659c21f101dfca7areed persp.setPerspY(SK_Scalar1 / 500); 1078c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->concat(persp); 1088c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com 1098c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->translate(SkIntToScalar(20), SkIntToScalar(20)); 1108c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com const SkScalar scale = SkIntToScalar(5)/4; 1118c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com 1128c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com showFour(canvas, SK_Scalar1, false); 1138c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->translate(SkIntToScalar(450), 0); 114cecd3ac9d04c16c1c2b3c18a3f0eedd4318c1ddebsalomon@google.com showFour(canvas, scale, false); 1158c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com 1168c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->translate(SkIntToScalar(-450), SkIntToScalar(450)); 1178c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com showFour(canvas, SK_Scalar1, true); 1188c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com canvas->translate(SkIntToScalar(450), 0); 119cecd3ac9d04c16c1c2b3c18a3f0eedd4318c1ddebsalomon@google.com showFour(canvas, scale, true); 1208c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com } 121d6176b0dcacb124539e0cfd051e6d93a9782f020rmistry@google.com 1228c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.comprivate: 1238c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com typedef GM INHERITED; 1248c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com}; 1258c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com 1268c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com////////////////////////////////////////////////////////////////////////////// 1278c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com 128cecd3ac9d04c16c1c2b3c18a3f0eedd4318c1ddebsalomon@google.comstatic GM* MyFactory(void*) { return new FillTypePerspGM; } 1298c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.comstatic GMRegistry reg(MyFactory); 1308c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com 1318c2fe99ed2c210317786683e8c1f1e86cff0be49bsalomon@google.com} 132