skia2/gm/avoidxfermode2.cpp

80 lines
2.1 KiB
C++

/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm.h"
#include "SkAvoidXfermode.h"
class AvoidXfermode2GM : public skiagm::GM {
public:
AvoidXfermode2GM() { }
protected:
SkString onShortName() override {
return SkString("avoidxfermode2");
}
SkISize onISize() override { return SkISize::Make(128, 128); }
void onDraw(SkCanvas* canvas) override {
canvas->drawARGB(255, 0, 0, 0);
SkRect r = SkRect::MakeXYWH(32, 32, 64, 64);
SkPaint p0;
p0.setColor(SK_ColorGREEN);
p0.setAntiAlias(false);
canvas->drawRect(r, p0);
r = SkRect::MakeIWH(64, 64);
// UL corner: replace the green with a tight tolerance
SkPaint p1;
p1.setColor(SK_ColorRED);
p1.setXfermode(SkAvoidXfermode::Make(SK_ColorGREEN, 55,
SkAvoidXfermode::kTargetColor_Mode));
canvas->drawRect(r, p1);
r.offsetTo(64, 0.0f);
// UR corner: avoid the green with a tight tolerance
SkPaint p2;
p2.setColor(SK_ColorRED);
p2.setXfermode(SkAvoidXfermode::Make(SK_ColorGREEN, 200,
SkAvoidXfermode::kAvoidColor_Mode));
canvas->drawRect(r, p2);
r.offsetTo(0.0f, 64);
// LL corner: replace the green with a loose tolerance
SkPaint p3;
p3.setColor(SK_ColorRED);
p3.setXfermode(SkAvoidXfermode::Make(SK_ColorGREEN, 200,
SkAvoidXfermode::kTargetColor_Mode));
canvas->drawRect(r, p3);
r.offsetTo(64, 64);
// LR corner: avoid the green with a loose tolerance
SkPaint p4;
p4.setColor(SK_ColorRED);
p4.setXfermode(SkAvoidXfermode::Make(SK_ColorGREEN, 55, SkAvoidXfermode::kAvoidColor_Mode));
canvas->drawRect(r, p4);
}
private:
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM(return new AvoidXfermode2GM;)