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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 "SampleCode.h"
#include "SkBitmap.h"
#include "SkBlurMask.h"
#include "SkCanvas.h"
#include "SkColorPriv.h"
#include "SkGradientShader.h"
#include "SkMaskFilter.h"
#include "SkUtils.h"
#include "SkView.h"
class BlurView : public SampleView {
SkBitmap fBM;
public:
BlurView() {}
protected:
// overrides from SkEventSink
virtual bool onQuery(SkEvent* evt) {
if (SampleCode::TitleQ(*evt)) {
SampleCode::TitleR(evt, "Blur");
return true;
}
return this->INHERITED::onQuery(evt);
}
void drawBG(SkCanvas* canvas) {
canvas->drawColor(0xFFDDDDDD);
}
virtual void onDrawContent(SkCanvas* canvas) {
drawBG(canvas);
SkBlurStyle NONE = SkBlurStyle(-999);
static const struct {
SkBlurStyle fStyle;
int fCx, fCy;
} gRecs[] = {
{ NONE, 0, 0 },
{ kInner_SkBlurStyle, -1, 0 },
{ kNormal_SkBlurStyle, 0, 1 },
{ kSolid_SkBlurStyle, 0, -1 },
{ kOuter_SkBlurStyle, 1, 0 },
};
SkPaint paint;
paint.setAntiAlias(true);
paint.setTextSize(25);
canvas->translate(-40, 0);
paint.setColor(SK_ColorBLUE);
for (size_t i = 0; i < SK_ARRAY_COUNT(gRecs); i++) {
if (gRecs[i].fStyle != NONE) {
paint.setMaskFilter(SkMaskFilter::MakeBlur(gRecs[i].fStyle,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(20))));
} else {
paint.setMaskFilter(nullptr);
}
canvas->drawCircle(200 + gRecs[i].fCx*100.f,
200 + gRecs[i].fCy*100.f, 50, paint);
}
// draw text
{
paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle,
SkBlurMask::ConvertRadiusToSigma(4)));
SkScalar x = SkIntToScalar(70);
SkScalar y = SkIntToScalar(400);
paint.setColor(SK_ColorBLACK);
canvas->drawString("Hamburgefons Style", x, y, paint);
canvas->drawString("Hamburgefons Style", x, y + SkIntToScalar(50), paint);
paint.setMaskFilter(nullptr);
paint.setColor(SK_ColorWHITE);
x -= SkIntToScalar(2);
y -= SkIntToScalar(2);
canvas->drawString("Hamburgefons Style", x, y, paint);
}
}
private:
typedef SkView INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static SkView* MyFactory() { return new BlurView; }
static SkViewRegister reg(MyFactory);
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