1 /* 2 * Copyright 2015 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 "SkCanvas.h" 9 #include "SkDrawFilter.h" 10 #include "SkSurface.h" 11 #include "Test.h" 12 13 namespace { 14 class TestFilter : public SkDrawFilter { 15 public: 16 bool filter(SkPaint* p, Type) override { 17 return true; 18 } 19 }; 20 } 21 22 /** 23 * canvas.setDrawFilter is defined to be local to the save/restore block, such that if you 24 * do the following: save / modify-drawfilter / restore, the current drawfilter should be what 25 * it was before the save. 26 */ 27 static void test_saverestore(skiatest::Reporter* reporter) { 28 SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(10, 10)); 29 SkCanvas* canvas = surface->getCanvas(); 30 31 32 SkAutoTUnref<TestFilter> df(SkNEW(TestFilter)); 33 34 REPORTER_ASSERT(reporter, NULL == canvas->getDrawFilter()); 35 36 canvas->save(); 37 canvas->setDrawFilter(df); 38 REPORTER_ASSERT(reporter, NULL != canvas->getDrawFilter()); 39 canvas->restore(); 40 41 REPORTER_ASSERT(reporter, NULL == canvas->getDrawFilter()); 42 } 43 44 DEF_TEST(DrawFilter, reporter) { 45 test_saverestore(reporter); 46 } 47
