8a21c9fe7f
Partially updated call sites. Undefine the flag in SkSHader.h to convert the remaining sites. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1772463002 Review URL: https://codereview.chromium.org/1772463002
138 lines
4.1 KiB
C++
138 lines
4.1 KiB
C++
/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SampleCode.h"
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#include "SkView.h"
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#include "SkCanvas.h"
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#include "SkDevice.h"
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#include "SkColorPriv.h"
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#include "SkShader.h"
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static const struct {
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SkXfermode::Mode fMode;
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const char* fLabel;
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} gModes[] = {
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{ SkXfermode::kClear_Mode, "Clear" },
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{ SkXfermode::kSrc_Mode, "Src" },
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{ SkXfermode::kDst_Mode, "Dst" },
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{ SkXfermode::kSrcOver_Mode, "SrcOver" },
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{ SkXfermode::kDstOver_Mode, "DstOver" },
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{ SkXfermode::kSrcIn_Mode, "SrcIn" },
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{ SkXfermode::kDstIn_Mode, "DstIn" },
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{ SkXfermode::kSrcOut_Mode, "SrcOut" },
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{ SkXfermode::kDstOut_Mode, "DstOut" },
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{ SkXfermode::kSrcATop_Mode, "SrcATop" },
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{ SkXfermode::kDstATop_Mode, "DstATop" },
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{ SkXfermode::kXor_Mode, "Xor" },
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};
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const int gWidth = 64;
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const int gHeight = 64;
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const SkScalar W = SkIntToScalar(gWidth);
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const SkScalar H = SkIntToScalar(gHeight);
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static SkScalar drawCell(SkCanvas* canvas, SkXfermode* mode,
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SkAlpha a0, SkAlpha a1) {
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SkPaint paint;
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paint.setAntiAlias(true);
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SkRect r = SkRect::MakeWH(W, H);
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r.inset(W/10, H/10);
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paint.setColor(SK_ColorBLUE);
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paint.setAlpha(a0);
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canvas->drawOval(r, paint);
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paint.setColor(SK_ColorRED);
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paint.setAlpha(a1);
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paint.setXfermode(mode);
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SkScalar offset = SK_Scalar1 / 3;
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SkRect rect = SkRect::MakeXYWH(W / 4 + offset,
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H / 4 + offset,
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W / 2, H / 2);
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canvas->drawRect(rect, paint);
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return H;
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}
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static sk_sp<SkShader> make_bg_shader() {
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SkBitmap bm;
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bm.allocN32Pixels(2, 2);
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*bm.getAddr32(0, 0) = *bm.getAddr32(1, 1) = 0xFFFFFFFF;
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*bm.getAddr32(1, 0) = *bm.getAddr32(0, 1) = SkPackARGB32(0xFF, 0xCC,
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0xCC, 0xCC);
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SkMatrix m;
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m.setScale(SkIntToScalar(6), SkIntToScalar(6));
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return SkShader::MakeBitmapShader(bm,
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SkShader::kRepeat_TileMode,
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SkShader::kRepeat_TileMode,
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&m);
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}
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class AARectsModesView : public SampleView {
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SkPaint fBGPaint;
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public:
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AARectsModesView () {
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fBGPaint.setShader(make_bg_shader());
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}
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protected:
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// overrides from SkEventSink
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virtual bool onQuery(SkEvent* evt) {
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if (SampleCode::TitleQ(*evt)) {
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SampleCode::TitleR(evt, "AARectsModes");
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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virtual void onDrawContent(SkCanvas* canvas) {
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const SkRect bounds = SkRect::MakeWH(W, H);
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static const SkAlpha gAlphaValue[] = { 0xFF, 0x88, 0x88 };
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canvas->translate(SkIntToScalar(4), SkIntToScalar(4));
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for (int alpha = 0; alpha < 4; ++alpha) {
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canvas->save();
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canvas->save();
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for (size_t i = 0; i < SK_ARRAY_COUNT(gModes); ++i) {
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if (6 == i) {
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canvas->restore();
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canvas->translate(W * 5, 0);
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canvas->save();
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}
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SkXfermode* mode = SkXfermode::Create(gModes[i].fMode);
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canvas->drawRect(bounds, fBGPaint);
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canvas->saveLayer(&bounds, nullptr);
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SkScalar dy = drawCell(canvas, mode,
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gAlphaValue[alpha & 1],
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gAlphaValue[alpha & 2]);
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canvas->restore();
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canvas->translate(0, dy * 5 / 4);
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SkSafeUnref(mode);
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}
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canvas->restore();
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canvas->restore();
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canvas->translate(W * 5 / 4, 0);
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}
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}
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private:
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typedef SampleView INHERITED;
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};
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///////////////////////////////////////////////////////////////////////////////
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static SkView* MyFactory() { return new AARectsModesView; }
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static SkViewRegister reg(MyFactory);
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