63c684a8a6
Fix path bugs exposed by the path fuzzer. Changes to existing gm and samplecode files defer their calls to construct SkPath objects until the first draw instead of at test initialization. Add an experimental call to SkPath to validate the internal SkPathRef. Fix SkPath::addPoly to set the last moveto after adding a close verb. Fix stroke to handle failures when computing the unit normal. Add a unit test for the unit normal failure. R=reed@google.com Review URL: https://codereview.chromium.org/953383002
82 lines
2.0 KiB
C++
82 lines
2.0 KiB
C++
/*
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* Copyright 2013 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm.h"
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#include "SkCanvas.h"
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#include "SkPath.h"
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class CircularClipsGM : public skiagm::GM {
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SkScalar fX1, fX2, fY, fR;
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SkPath fCircle1, fCircle2;
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protected:
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void onOnceBeforeDraw() SK_OVERRIDE {
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fX1 = 80;
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fX2 = 120;
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fY = 50;
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fR = 40;
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fCircle1.addCircle(fX1, fY, fR, SkPath::kCW_Direction);
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fCircle2.addCircle(fX2, fY, fR, SkPath::kCW_Direction);
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}
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bool runAsBench() const SK_OVERRIDE { return true; }
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SkString onShortName() SK_OVERRIDE {
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return SkString("circular-clips");
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}
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SkISize onISize() SK_OVERRIDE {
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return SkISize::Make(800, 600);
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}
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void onDraw(SkCanvas* canvas) SK_OVERRIDE {
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SkRegion::Op ops[] = {
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SkRegion::kDifference_Op,
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SkRegion::kIntersect_Op,
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SkRegion::kUnion_Op,
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SkRegion::kXOR_Op,
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SkRegion::kReverseDifference_Op,
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SkRegion::kReplace_Op,
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};
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SkRect rect = SkRect::MakeLTRB(fX1 - fR, fY - fR, fX2 + fR, fY + fR);
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SkPaint fillPaint;
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for (size_t i = 0; i < 4; i++) {
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fCircle1.toggleInverseFillType();
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if (i % 2 == 0) {
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fCircle2.toggleInverseFillType();
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}
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canvas->save();
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for (size_t op = 0; op < SK_ARRAY_COUNT(ops); op++) {
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canvas->save();
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canvas->clipPath(fCircle1, SkRegion::kReplace_Op);
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canvas->clipPath(fCircle2, ops[op]);
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canvas->drawRect(rect, fillPaint);
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canvas->restore();
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canvas->translate(0, 2 * fY);
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}
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canvas->restore();
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canvas->translate(fX1 + fX2, 0);
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}
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}
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private:
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typedef skiagm::GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_GM( return new CircularClipsGM; )
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