skia2/gm/circularclips.cpp
Herb Derby c37b386886 Replace SK_ARRAY_COUNT with std::size() for skia/gm
Note: in variedtext.cpp:66 changed static_assert to SkASSERT.

Change-Id: I853a2e5563c90c9dde5d6ba5443cc73b664b493d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/551876
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>
2022-06-21 18:09:30 +00:00

99 lines
2.5 KiB
C++

/*
* 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; )