skia2/gm/drawlooper.cpp
Mike Reed c877ea2657 Hide setDrawLooper -- deprecate loopers
Guarded with SK_SUPPORT_LEGACY_DRAWLOOPER

Bug: skia:4783
Change-Id: I4a47513624bc5c09816f44e107917dc8028adb94
Reviewed-on: https://skia-review.googlesource.com/c/189871
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
Auto-Submit: Mike Reed <reed@google.com>
2019-02-07 13:33:30 +00:00

96 lines
2.7 KiB
C++

/*
* 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 "sk_tool_utils.h"
#include "SkBlurMask.h"
#include "SkCanvas.h"
#include "SkGraphics.h"
#include "SkLayerDrawLooper.h"
#include "SkMaskFilter.h"
#include "SkRandom.h"
#define WIDTH 200
#define HEIGHT 200
class DrawLooperGM : public skiagm::GM {
public:
DrawLooperGM() : fLooper(nullptr) {
this->setBGColor(0xFFDDDDDD);
}
protected:
virtual SkISize onISize() override {
return SkISize::Make(520, 160);
}
SkString onShortName() override {
return SkString("drawlooper");
}
void onDraw(SkCanvas* canvas) override {
this->init();
SkPaint paint;
paint.setAntiAlias(true);
#ifdef SK_SUPPORT_LEGACY_DRAWLOOPER
paint.setLooper(fLooper);
#endif
SkFont font(sk_tool_utils::create_portable_typeface(), 72);
canvas->drawCircle(50, 50, 30, paint);
canvas->drawRect({ 150, 50, 200, 100 }, paint);
canvas->drawString("Looper", 230, 100, font, paint);
}
private:
sk_sp<SkDrawLooper> fLooper;
void init() {
if (fLooper) return;
constexpr struct {
SkColor fColor;
SkPaint::Style fStyle;
SkScalar fWidth;
SkScalar fOffset;
SkScalar 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), SkIntToScalar(3) }
};
SkLayerDrawLooper::Builder looperBuilder;
SkLayerDrawLooper::LayerInfo info;
info.fPaintBits = SkLayerDrawLooper::kStyle_Bit | SkLayerDrawLooper::kMaskFilter_Bit;
info.fColorMode = SkBlendMode::kSrc;
for (size_t i = 0; i < SK_ARRAY_COUNT(gParams); i++) {
info.fOffset.set(gParams[i].fOffset, gParams[i].fOffset);
SkPaint* paint = looperBuilder.addLayer(info);
paint->setColor(gParams[i].fColor);
paint->setStyle(gParams[i].fStyle);
paint->setStrokeWidth(gParams[i].fWidth);
if (gParams[i].fBlur > 0) {
paint->setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle,
SkBlurMask::ConvertRadiusToSigma(gParams[i].fBlur)));
}
}
fLooper = looperBuilder.detach();
}
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM( return new DrawLooperGM; )