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- /*
- * Copyright 2012 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/SkColor.h"
- #include "include/core/SkPath.h"
- #include "include/core/SkPicture.h"
- #include "include/core/SkPictureRecorder.h"
- #include "include/core/SkRect.h"
- #include "include/core/SkRefCnt.h"
- #include "include/core/SkScalar.h"
- #include "include/core/SkSize.h"
- #include "include/core/SkString.h"
- namespace skiagm {
- class DistantClipGM : public GM {
- SkString onShortName() override { return SkString("distantclip"); }
- SkISize onISize() override { return {100, 100}; }
- void onDraw(SkCanvas* canvas) override {
- constexpr SkScalar kOffset = 35000.0f;
- constexpr SkScalar kExtents = 1000.0f;
- SkPictureRecorder recorder;
- // We record a picture of huge vertical extents in which we clear the canvas to red, create
- // a 'extents' by 'extents' round rect clip at a vertical offset of 'offset', then draw
- // green into that.
- SkCanvas* rec = recorder.beginRecording(kExtents, kOffset + kExtents, nullptr, 0);
- rec->drawColor(SK_ColorRED);
- rec->save();
- SkRect r = SkRect::MakeXYWH(-kExtents, kOffset - kExtents, 2 * kExtents, 2 * kExtents);
- SkPath p;
- p.addRoundRect(r, 5, 5);
- rec->clipPath(p, true);
- rec->drawColor(SK_ColorGREEN);
- rec->restore();
- sk_sp<SkPicture> pict(recorder.finishRecordingAsPicture());
- // Next we play that picture into another picture of the same size.
- pict->playback(recorder.beginRecording(pict->cullRect().width(),
- pict->cullRect().height(),
- nullptr, 0));
- sk_sp<SkPicture> pict2(recorder.finishRecordingAsPicture());
- // Finally we play the part of that second picture that should be green into the canvas.
- canvas->save();
- canvas->translate(kExtents / 2, -(kOffset - kExtents / 2));
- pict2->playback(canvas);
- canvas->restore();
- // If the image is red, we erroneously decided the clipPath was empty and didn't record
- // the green drawColor, if it's green we're all good.
- }
- };
- ///////////////////////////////////////////////////////////////////////////////
- DEF_GM( return new DistantClipGM; )
- }
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