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/*
* Copyright 2014 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"
namespace skiagm {
// This GM exercises the use case found in crbug.com/423834.
// The following pattern:
// save();
// clipRect(rect, noAA);
// drawRect(bigRect, noAA);
// restore();
//
// drawRect(rect, noAA);
// can leave 1 pixel wide remnants of the first rect.
class ClipDrawDrawGM : public GM {
public:
ClipDrawDrawGM() { this->setBGColor(sk_tool_utils::color_to_565(0xFFCCCCCC)); }
protected:
SkString onShortName() override { return SkString("clipdrawdraw"); }
SkISize onISize() override { return SkISize::Make(512, 512); }
static void Draw(SkCanvas* canvas, const SkRect& rect) {
SkPaint p;
p.setAntiAlias(false);
const SkRect bigRect = SkRect::MakeWH(600, 600);
canvas->save();
// draw a black rect through the clip
canvas->save();
canvas->clipRect(rect);
canvas->drawRect(bigRect, p);
canvas->restore();
// now draw the white rect on top
p.setColor(SK_ColorWHITE);
canvas->drawRect(rect, p);
canvas->restore();
}
void onDraw(SkCanvas* canvas) override {
// Vertical remnant
const SkRect rect1 = SkRect::MakeLTRB(136.5f, 137.5f, 338.5f, 293.5f);
// Horizontal remnant
// 179.488 rounds the right way (i.e., 179), 179.499 rounds the wrong way (i.e., 180)
const SkRect rect2 = SkRect::MakeLTRB(207.5f, 179.499f, 530.5f, 429.5f);
Draw(canvas, rect1);
Draw(canvas, rect2);
}
private:
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM(return SkNEW(ClipDrawDrawGM);)
}
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