| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "DecodeFile.h" |
| #include "gm.h" |
| |
| #include "Resources.h" |
| #include "SampleCode.h" |
| #include "SkBlurMaskFilter.h" |
| #include "SkCanvas.h" |
| #include "SkColorPriv.h" |
| #include "SkPath.h" |
| #include "SkRandom.h" |
| #include "SkStream.h" |
| #include "SkTime.h" |
| #include "SkClipOpPriv.h" |
| |
| // Intended to exercise pixel snapping observed with scaled images (and |
| // with non-scaled images, but for a different reason): Bug 1145 |
| |
| class IdentityScaleView : public SampleView { |
| public: |
| IdentityScaleView(const char imageFilename[]) { |
| SkString resourcePath = GetResourcePath(imageFilename); |
| if (!decode_file(resourcePath.c_str(), &fBM)) { |
| fBM.allocN32Pixels(1, 1); |
| *(fBM.getAddr32(0,0)) = 0xFF0000FF; // red == bad |
| } |
| } |
| |
| protected: |
| SkBitmap fBM; |
| |
| // overrides from SkEventSink |
| bool onQuery(SkEvent* evt) override { |
| if (SampleCode::TitleQ(*evt)) { |
| SampleCode::TitleR(evt, "IdentityScale"); |
| return true; |
| } |
| return this->INHERITED::onQuery(evt); |
| } |
| |
| void onDrawContent(SkCanvas* canvas) override { |
| |
| SkPaint paint; |
| |
| paint.setAntiAlias(true); |
| paint.setTextSize(48); |
| paint.setFilterQuality(kHigh_SkFilterQuality); |
| |
| SkTime::DateTime time; |
| SkTime::GetDateTime(&time); |
| |
| bool use_scale = (time.fSecond % 2 == 1); |
| const char *text; |
| |
| canvas->save(); |
| if (use_scale) { |
| text = "Scaled = 1"; |
| } else { |
| |
| SkRect r = { 100, 100, 356, 356 }; |
| SkPath clipPath; |
| clipPath.addRoundRect(r, SkIntToScalar(5), SkIntToScalar(5)); |
| canvas->clipPath(clipPath, kIntersect_SkClipOp, true); |
| text = "Scaled = 0"; |
| } |
| canvas->drawBitmap( fBM, 100, 100, &paint ); |
| canvas->restore(); |
| canvas->drawString(text, 100, 400, paint ); |
| } |
| |
| private: |
| typedef SampleView INHERITED; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| static SkView* MyFactory() { return new IdentityScaleView("images/mandrill_256.png"); } |
| static SkViewRegister reg(MyFactory); |