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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 "SkCanvas.h"
#include "SkGraphics.h"
#include "SkRandom.h"
#include "SkLayerDrawLooper.h"
#include "SkBlurMaskFilter.h"
#define WIDTH 200
#define HEIGHT 200
class DrawLooperGM : public skiagm::GM {
public:
DrawLooperGM() : fLooper(NULL) {
this->setBGColor(0xFFDDDDDD);
}
virtual ~DrawLooperGM() {
SkSafeUnref(fLooper);
}
protected:
virtual SkISize onISize() {
return SkISize::Make(520, 160);
}
virtual SkString onShortName() SK_OVERRIDE {
return SkString("drawlooper");
}
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
this->init();
SkPaint paint;
paint.setTextSize(SkIntToScalar(72));
paint.setLooper(fLooper);
canvas->drawCircle(SkIntToScalar(50), SkIntToScalar(50),
SkIntToScalar(30), paint);
canvas->drawRectCoords(SkIntToScalar(150), SkIntToScalar(50),
SkIntToScalar(200), SkIntToScalar(100), paint);
canvas->drawText("Looper", 6, SkIntToScalar(230), SkIntToScalar(100),
paint);
}
private:
SkLayerDrawLooper* fLooper;
void init() {
if (fLooper) return;
static const struct {
SkColor fColor;
SkPaint::Style fStyle;
SkScalar fWidth;
SkScalar fOffset;
int fBlur;
} gParams[] = {
{ SK_ColorWHITE, SkPaint::kStroke_Style, SkIntToScalar(1)*3/4, 0, 0 },
{ SK_ColorRED, SkPaint::kStroke_Style, SkIntToScalar(4), 0, 0 },
{ SK_ColorBLUE, SkPaint::kFill_Style, 0, 0, 0 },
{ 0x88000000, SkPaint::kFill_Style, 0, SkIntToScalar(10), 3 }
};
fLooper = new SkLayerDrawLooper;
SkLayerDrawLooper::LayerInfo info;
info.fFlagsMask = SkPaint::kAntiAlias_Flag;
info.fPaintBits = SkLayerDrawLooper::kStyle_Bit | SkLayerDrawLooper::kMaskFilter_Bit;
info.fColorMode = SkXfermode::kSrc_Mode;
for (size_t i = 0; i < SK_ARRAY_COUNT(gParams); i++) {
info.fOffset.set(gParams[i].fOffset, gParams[i].fOffset);
SkPaint* paint = fLooper->addLayer(info);
paint->setAntiAlias(true);
paint->setColor(gParams[i].fColor);
paint->setStyle(gParams[i].fStyle);
paint->setStrokeWidth(gParams[i].fWidth);
if (gParams[i].fBlur > 0) {
SkMaskFilter* mf = SkBlurMaskFilter::Create(SkIntToScalar(gParams[i].fBlur),
SkBlurMaskFilter::kNormal_BlurStyle);
paint->setMaskFilter(mf)->unref();
}
}
}
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static skiagm::GM* MyFactory(void*) { return new DrawLooperGM; }
static skiagm::GMRegistry reg(MyFactory);
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