// overrides from SkEventSink bool onQuery(SkEvent* evt) override { if (SampleCode::TitleQ(*evt)) { SampleCode::TitleR(evt, "unpremul"); return true; } SkUnichar uni; if (SampleCode::CharQ(*evt, &uni)) { char utf8[kMaxBytesInUTF8Sequence]; size_t size = SkUTF8_FromUnichar(uni, utf8); // Only consider events for single char keys if (1 == size) { switch (utf8[0]) { case fNextImageChar: this->nextImage(); return true; case fTogglePremulChar: this->togglePremul(); return true; default: break; } } } return this->INHERITED::onQuery(evt); }
bool onQuery(SkEvent* evt) override { if (SampleCode::TitleQ(*evt)) { SampleCode::TitleR(evt, "Rectanizer"); return true; } SkUnichar uni; if (SampleCode::CharQ(*evt, &uni)) { char utf8[kMaxBytesInUTF8Sequence]; size_t size = SkUTF8_FromUnichar(uni, utf8); // Only consider events for single char keys if (1 == size) { switch (utf8[0]) { case kCycleRectanizerKey: this->cycleRectanizer(); return true; case kCycleRectsKey: this->cycleRects(); return true; default: break; } } } return this->INHERITED::onQuery(evt); }
static size_t uni_to_utf8(const SkUnichar src[], void* dst, int count) { char* u8 = (char*)dst; for (int i = 0; i < count; ++i) { int n = SkToInt(SkUTF8_FromUnichar(src[i], u8)); u8 += n; } return u8 - (char*)dst; }
bool SkDisplayEvent::getProperty(int index, SkScriptValue* value) const { switch (index) { case SK_PROPERTY(key): case SK_PROPERTY(keys): { value->fType = SkType_String; char scratch[8]; SkKey convert = index == SK_PROPERTY(keys) ? code : fLastCode; size_t size = convert > 0 ? SkUTF8_FromUnichar(convert, scratch) : 0; fKeyString.set(scratch, size); value->fOperand.fString = &fKeyString; if (index != SK_PROPERTY(keys) || fMax == (SkKey) -1 || fMax == code) break; value->fOperand.fString->append("-"); size = SkUTF8_FromUnichar(fMax, scratch); value->fOperand.fString->append(scratch, size); } break; default: SkASSERT(0); return false; } return true; }
virtual void onDrawContent(SkCanvas* canvas) { canvas->translate(SkIntToScalar(10), SkIntToScalar(20)); if (false) { SkPaint paint; paint.setAntiAlias(true); paint.setTextSize(50); paint.setTypeface(SkTypeface::MakeFromName("Arial Unicode MS", SkFontStyle())); char buffer[10]; size_t len = SkUTF8_FromUnichar(0x8500, buffer); canvas->drawText(buffer, len, 40, 40, paint); return; } if (false) { SkPaint paint; paint.setAntiAlias(true); SkRect r0 = { 0, 0, 10.5f, 20 }; SkRect r1 = { 10.5f, 10, 20, 30 }; paint.setColor(SK_ColorRED); canvas->drawRect(r0, paint); paint.setColor(SK_ColorBLUE); canvas->drawRect(r1, paint); return; } const struct { SkBlendMode fMode; const char* fLabel; } gModes[] = { { SkBlendMode::kClear, "Clear" }, { SkBlendMode::kSrc, "Src" }, { SkBlendMode::kDst, "Dst" }, { SkBlendMode::kSrcOver, "SrcOver" }, { SkBlendMode::kDstOver, "DstOver" }, { SkBlendMode::kSrcIn, "SrcIn" }, { SkBlendMode::kDstIn, "DstIn" }, { SkBlendMode::kSrcOut, "SrcOut" }, { SkBlendMode::kDstOut, "DstOut" }, { SkBlendMode::kSrcATop, "SrcATop" }, { SkBlendMode::kDstATop, "DstATop" }, { SkBlendMode::kXor, "Xor" }, { SkBlendMode::kPlus, "Plus" }, }; const SkScalar w = SkIntToScalar(W); const SkScalar h = SkIntToScalar(H); SkMatrix m; m.setScale(SkIntToScalar(6), SkIntToScalar(6)); auto s = SkShader::MakeBitmapShader(fBG, SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode, &m); SkPaint labelP; labelP.setAntiAlias(true); labelP.setLCDRenderText(true); labelP.setTextAlign(SkPaint::kCenter_Align); setNamedTypeface(&labelP, "Menlo Regular"); const int W = 5; SkScalar x0 = 0; for (int twice = 0; twice < 2; twice++) { SkScalar x = x0, y = 0; for (size_t i = 0; i < SK_ARRAY_COUNT(gModes); i++) { SkRect r; r.set(x, y, x+w, y+h); SkPaint p; p.setStyle(SkPaint::kFill_Style); p.setShader(s); canvas->drawRect(r, p); canvas->saveLayer(&r, nullptr); draw_mode(canvas, gModes[i].fMode, twice ? 0x88 : 0xFF, r.fLeft, r.fTop); canvas->restore(); r.inset(-SK_ScalarHalf, -SK_ScalarHalf); p.setStyle(SkPaint::kStroke_Style); p.setShader(nullptr); canvas->drawRect(r, p); canvas->drawText(gModes[i].fLabel, strlen(gModes[i].fLabel), x + w/2, y - labelP.getTextSize()/2, labelP); x += w + SkIntToScalar(10); if ((i % W) == W - 1) { x = x0; y += h + SkIntToScalar(30); } } x0 += SkIntToScalar(400); } }
virtual void onDrawContent(SkCanvas* canvas) { canvas->translate(SkIntToScalar(10), SkIntToScalar(20)); if (false) { SkPaint paint; paint.setAntiAlias(true); paint.setTextSize(50); paint.setTypeface(SkTypeface::CreateFromName("Arial Unicode MS", SkTypeface::kNormal)); SkSafeUnref(paint.getTypeface()); char buffer[10]; size_t len = SkUTF8_FromUnichar(0x8500, buffer); canvas->drawText(buffer, len, 40, 40, paint); return; } if (false) { SkPaint paint; paint.setAntiAlias(true); SkRect r0 = { 0, 0, 10.5f, 20 }; SkRect r1 = { 10.5f, 10, 20, 30 }; paint.setColor(SK_ColorRED); canvas->drawRect(r0, paint); paint.setColor(SK_ColorBLUE); canvas->drawRect(r1, paint); return; } const struct { SkXfermode::Mode fMode; const char* fLabel; } gModes[] = { { SkXfermode::kClear_Mode, "Clear" }, { SkXfermode::kSrc_Mode, "Src" }, { SkXfermode::kDst_Mode, "Dst" }, { SkXfermode::kSrcOver_Mode, "SrcOver" }, { SkXfermode::kDstOver_Mode, "DstOver" }, { SkXfermode::kSrcIn_Mode, "SrcIn" }, { SkXfermode::kDstIn_Mode, "DstIn" }, { SkXfermode::kSrcOut_Mode, "SrcOut" }, { SkXfermode::kDstOut_Mode, "DstOut" }, { SkXfermode::kSrcATop_Mode, "SrcATop" }, { SkXfermode::kDstATop_Mode, "DstATop" }, { SkXfermode::kXor_Mode, "Xor" }, { SkXfermode::kPlus_Mode, "Plus" }, /*{ SkXfermode::kModulate_Mode, "Modulate" }, { SkXfermode::kScreen_Mode, "Screen" }, { SkXfermode::kOverlay_Mode, "Overlay" }, { SkXfermode::kDarken_Mode, "Darken" }, { SkXfermode::kLighten_Mode, "Lighten" }, { SkXfermode::kColorDodge_Mode, "ColorDodge" }, { SkXfermode::kColorBurn_Mode, "ColorBurn" }, { SkXfermode::kHardLight_Mode, "HardLight" }, { SkXfermode::kSoftLight_Mode, "SoftLight" }, { SkXfermode::kDifference_Mode, "Difference" }, { SkXfermode::kExclusion_Mode, "Exclusion" },*/ }; const SkScalar w = SkIntToScalar(W); const SkScalar h = SkIntToScalar(H); SkShader* s = SkShader::CreateBitmapShader(fBG, SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode); SkMatrix m; m.setScale(SkIntToScalar(6), SkIntToScalar(6)); s->setLocalMatrix(m); SkPaint labelP; labelP.setAntiAlias(true); labelP.setLCDRenderText(true); labelP.setTextAlign(SkPaint::kCenter_Align); setNamedTypeface(&labelP, "Menlo Regular"); const int W = 5; SkScalar x0 = 0; for (int twice = 0; twice < 2; twice++) { SkScalar x = x0, y = 0; for (size_t i = 0; i < SK_ARRAY_COUNT(gModes); i++) { SkXfermode* mode = SkXfermode::Create(gModes[i].fMode); SkAutoUnref aur(mode); SkRect r; r.set(x, y, x+w, y+h); SkPaint p; p.setStyle(SkPaint::kFill_Style); p.setShader(s); canvas->drawRect(r, p); canvas->saveLayer(&r, NULL); draw_mode(canvas, mode, twice ? 0x88 : 0xFF, r.fLeft, r.fTop); canvas->restore(); r.inset(-SK_ScalarHalf, -SK_ScalarHalf); p.setStyle(SkPaint::kStroke_Style); p.setShader(NULL); canvas->drawRect(r, p); canvas->drawText(gModes[i].fLabel, strlen(gModes[i].fLabel), x + w/2, y - labelP.getTextSize()/2, labelP); x += w + SkIntToScalar(10); if ((i % W) == W - 1) { x = x0; y += h + SkIntToScalar(30); } } x0 += SkIntToScalar(400); } s->unref(); }