| /* |
| * Copyright 2013 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "gm/gm.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkClipOp.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkPath.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkString.h" |
| #include "include/core/SkTypes.h" |
| |
| class CircularClipsGM : public skiagm::GM { |
| SkScalar fX1, fX2, fY, fR; |
| SkPath fCircle1, fCircle2; |
| |
| protected: |
| void onOnceBeforeDraw() override { |
| fX1 = 80; |
| fX2 = 120; |
| fY = 50; |
| fR = 40; |
| |
| fCircle1 = SkPath::Circle(fX1, fY, fR, SkPathDirection::kCW); |
| fCircle2 = SkPath::Circle(fX2, fY, fR, SkPathDirection::kCW); |
| } |
| |
| |
| bool runAsBench() const override { return true; } |
| |
| SkString onShortName() override { |
| return SkString("circular-clips"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(800, 200); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| const SkClipOp ops[] = { |
| SkClipOp::kDifference, |
| SkClipOp::kIntersect |
| }; |
| |
| SkRect rect = SkRect::MakeLTRB(fX1 - fR, fY - fR, fX2 + fR, fY + fR); |
| |
| SkPaint fillPaint; |
| |
| // Giant background circular clips (AA, non-inverted, replace/isect) |
| fillPaint.setColor(0x80808080); |
| canvas->save(); |
| canvas->scale(10, 10); |
| canvas->translate(-((fX1 + fX2)/2 - fR), -(fY - 2*fR/3)); |
| canvas->clipPath(fCircle1, true); |
| canvas->clipPath(fCircle2, true); |
| |
| canvas->drawRect(rect, fillPaint); |
| |
| canvas->restore(); |
| |
| fillPaint.setColor(0xFF000000); |
| |
| for (size_t i = 0; i < 4; i++) { |
| fCircle1.toggleInverseFillType(); |
| if (i % 2 == 0) { |
| fCircle2.toggleInverseFillType(); |
| } |
| |
| canvas->save(); |
| for (size_t op = 0; op < std::size(ops); op++) { |
| canvas->save(); |
| |
| canvas->clipPath(fCircle1); |
| canvas->clipPath(fCircle2, ops[op]); |
| |
| canvas->drawRect(rect, fillPaint); |
| |
| canvas->restore(); |
| canvas->translate(0, 2 * fY); |
| } |
| canvas->restore(); |
| canvas->translate(fX1 + fX2, 0); |
| } |
| } |
| |
| private: |
| using INHERITED = skiagm::GM; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_GM( return new CircularClipsGM; ) |