1 /* 2 * Copyright 2014 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "Test.h" 9 10 #include "SkRecord.h" 11 #include "SkRecords.h" 12 13 // Sums the area of any DrawRect command it sees. 14 class AreaSummer { 15 public: 16 AreaSummer() : fArea(0) {} 17 18 template <typename T> void operator()(const T&) { } 19 20 void operator()(const SkRecords::DrawRect& draw) { 21 fArea += (int)(draw.rect.width() * draw.rect.height()); 22 } 23 24 int area() const { return fArea; } 25 26 void apply(const SkRecord& record) { 27 for (unsigned i = 0; i < record.count(); i++) { 28 record.visit<void>(i, *this); 29 } 30 } 31 32 private: 33 int fArea; 34 }; 35 36 // Scales out the bottom-right corner of any DrawRect command it sees by 2x. 37 struct Stretch { 38 template <typename T> void operator()(T*) {} 39 void operator()(SkRecords::DrawRect* draw) { 40 draw->rect.fRight *= 2; 41 draw->rect.fBottom *= 2; 42 } 43 44 void apply(SkRecord* record) { 45 for (unsigned i = 0; i < record->count(); i++) { 46 record->mutate<void>(i, *this); 47 } 48 } 49 }; 50 51 // Basic tests for the low-level SkRecord code. 52 DEF_TEST(Record, r) { 53 SkRecord record; 54 55 // Add a simple DrawRect command. 56 SkRect rect = SkRect::MakeWH(10, 10); 57 SkPaint paint; 58 SkNEW_PLACEMENT_ARGS(record.append<SkRecords::DrawRect>(), SkRecords::DrawRect, (paint, rect)); 59 60 // Its area should be 100. 61 AreaSummer summer; 62 summer.apply(record); 63 REPORTER_ASSERT(r, summer.area() == 100); 64 65 // Scale 2x. 66 Stretch stretch; 67 stretch.apply(&record); 68 69 // Now its area should be 100 + 400. 70 summer.apply(record); 71 REPORTER_ASSERT(r, summer.area() == 500); 72 } 73
