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/*
* Copyright 2011 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 "SkBlurMask.h"
#include "SkBlurDrawLooper.h"
namespace skiagm {
///////////////////////////////////////////////////////////////////////////////
static void setup(SkPaint* paint, SkColor c, SkScalar strokeWidth) {
paint->setColor(c);
if (strokeWidth < 0) {
paint->setStyle(SkPaint::kFill_Style);
} else {
paint->setStyle(SkPaint::kStroke_Style);
paint->setStrokeWidth(strokeWidth);
}
}
class ShadowsGM : public GM {
public:
SkPath fCirclePath;
SkRect fRect;
protected:
void onOnceBeforeDraw() override {
this->setBGColor(0xFFDDDDDD);
fCirclePath.addCircle(SkIntToScalar(20), SkIntToScalar(20), SkIntToScalar(10) );
fRect.set(SkIntToScalar(10), SkIntToScalar(10),
SkIntToScalar(30), SkIntToScalar(30));
}
virtual SkString onShortName() {
return SkString("shadows");
}
virtual SkISize onISize() {
return SkISize::Make(200, 120);
}
virtual void onDraw(SkCanvas* canvas) {
SkBlurDrawLooper* shadowLoopers[5];
shadowLoopers[0] =
SkBlurDrawLooper::Create(SK_ColorBLUE,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(10)),
SkIntToScalar(5), SkIntToScalar(10),
SkBlurDrawLooper::kIgnoreTransform_BlurFlag |
SkBlurDrawLooper::kOverrideColor_BlurFlag |
SkBlurDrawLooper::kHighQuality_BlurFlag);
SkAutoUnref aurL0(shadowLoopers[0]);
shadowLoopers[1] =
SkBlurDrawLooper::Create(SK_ColorBLUE,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(10)),
SkIntToScalar(5), SkIntToScalar(10),
SkBlurDrawLooper::kIgnoreTransform_BlurFlag |
SkBlurDrawLooper::kOverrideColor_BlurFlag);
SkAutoUnref aurL1(shadowLoopers[1]);
shadowLoopers[2] =
SkBlurDrawLooper::Create(SK_ColorBLACK,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(5)),
SkIntToScalar(5),
SkIntToScalar(10),
SkBlurDrawLooper::kIgnoreTransform_BlurFlag |
SkBlurDrawLooper::kHighQuality_BlurFlag);
SkAutoUnref aurL2(shadowLoopers[2]);
shadowLoopers[3] =
SkBlurDrawLooper::Create(0x7FFF0000,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(5)),
SkIntToScalar(-5), SkIntToScalar(-10),
SkBlurDrawLooper::kIgnoreTransform_BlurFlag |
SkBlurDrawLooper::kOverrideColor_BlurFlag |
SkBlurDrawLooper::kHighQuality_BlurFlag);
SkAutoUnref aurL3(shadowLoopers[3]);
shadowLoopers[4] =
SkBlurDrawLooper::Create(SK_ColorBLACK, SkIntToScalar(0),
SkIntToScalar(5), SkIntToScalar(5),
SkBlurDrawLooper::kIgnoreTransform_BlurFlag |
SkBlurDrawLooper::kOverrideColor_BlurFlag |
SkBlurDrawLooper::kHighQuality_BlurFlag);
SkAutoUnref aurL4(shadowLoopers[4]);
static const struct {
SkColor fColor;
SkScalar fStrokeWidth;
} gRec[] = {
{ SK_ColorRED, -SK_Scalar1 },
{ SK_ColorGREEN, SkIntToScalar(4) },
{ SK_ColorBLUE, SkIntToScalar(0)},
};
SkPaint paint;
paint.setAntiAlias(true);
for (size_t i = 0; i < SK_ARRAY_COUNT(shadowLoopers); ++i) {
SkAutoCanvasRestore acr(canvas, true);
paint.setLooper(shadowLoopers[i]);
canvas->translate(SkIntToScalar((unsigned int)i*40), SkIntToScalar(0));
setup(&paint, gRec[0].fColor, gRec[0].fStrokeWidth);
canvas->drawRect(fRect, paint);
canvas->translate(SkIntToScalar(0), SkIntToScalar(40));
setup(&paint, gRec[1].fColor, gRec[1].fStrokeWidth);
canvas->drawPath(fCirclePath, paint);
canvas->translate(SkIntToScalar(0), SkIntToScalar(40));
setup(&paint, gRec[2].fColor, gRec[2].fStrokeWidth);
canvas->drawPath(fCirclePath, paint);
}
}
private:
typedef GM INHERITED;
};
///////////////////////////////////////////////////////////////////////////////
static GM* MyFactory(void*) { return new ShadowsGM; }
static GMRegistry reg(MyFactory);
}