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| (Empty) |
| 1 #include "SkBlurDrawLooper.h" | |
| 2 #include "SkBlurMaskFilter.h" | |
| 3 #include "SkCanvas.h" | |
| 4 #include "SkPaint.h" | |
| 5 #include "SkMaskFilter.h" | |
| 6 | |
| 7 SkBlurDrawLooper::SkBlurDrawLooper(SkScalar radius, SkScalar dx, SkScalar dy, | |
| 8 SkColor color) | |
| 9 : fDx(dx), fDy(dy), fBlurColor(color) | |
| 10 { | |
| 11 if (radius > 0) | |
| 12 fBlur = SkBlurMaskFilter::Create(radius, | |
| 13 SkBlurMaskFilter::kNormal_BlurStyle); | |
| 14 else | |
| 15 fBlur = NULL; | |
| 16 } | |
| 17 | |
| 18 SkBlurDrawLooper::SkBlurDrawLooper(SkFlattenableReadBuffer& buffer) | |
| 19 { | |
| 20 fDx = buffer.readScalar(); | |
| 21 fDy = buffer.readScalar(); | |
| 22 fBlurColor = buffer.readU32(); | |
| 23 fBlur = static_cast<SkMaskFilter*>(buffer.readFlattenable()); | |
| 24 } | |
| 25 | |
| 26 SkBlurDrawLooper::~SkBlurDrawLooper() | |
| 27 { | |
| 28 fBlur->safeUnref(); | |
| 29 } | |
| 30 | |
| 31 void SkBlurDrawLooper::flatten(SkFlattenableWriteBuffer& buffer) | |
| 32 { | |
| 33 buffer.writeScalar(fDx); | |
| 34 buffer.writeScalar(fDy); | |
| 35 buffer.write32(fBlurColor); | |
| 36 buffer.writeFlattenable(fBlur); | |
| 37 } | |
| 38 | |
| 39 void SkBlurDrawLooper::init(SkCanvas* canvas, SkPaint* paint) | |
| 40 { | |
| 41 // we do nothing if a maskfilter is already installed | |
| 42 if (paint->getMaskFilter() != NULL) | |
| 43 fState = kDone; | |
| 44 else | |
| 45 { | |
| 46 fState = kBeforeEdge; | |
| 47 fPaint = paint; | |
| 48 fCanvas = canvas; | |
| 49 fSaveCount = canvas->getSaveCount(); | |
| 50 } | |
| 51 } | |
| 52 | |
| 53 bool SkBlurDrawLooper::next() | |
| 54 { | |
| 55 switch (fState) { | |
| 56 case kBeforeEdge: | |
| 57 fSavedColor = fPaint->getColor(); | |
| 58 fPaint->setColor(fBlurColor); | |
| 59 fPaint->setMaskFilter(fBlur); | |
| 60 fCanvas->save(SkCanvas::kMatrix_SaveFlag); | |
| 61 fCanvas->translate(fDx, fDy); | |
| 62 fState = kAfterEdge; | |
| 63 return true; | |
| 64 case kAfterEdge: | |
| 65 fPaint->setColor(fSavedColor); | |
| 66 fPaint->setMaskFilter(NULL); | |
| 67 fCanvas->restore(); // to remove the translate we did earlier | |
| 68 fState = kDone; | |
| 69 return true; | |
| 70 default: | |
| 71 SkASSERT(kDone == fState); | |
| 72 return false; | |
| 73 } | |
| 74 } | |
| 75 | |
| 76 void SkBlurDrawLooper::restore() | |
| 77 { | |
| 78 if (kAfterEdge == fState) | |
| 79 { | |
| 80 fPaint->setColor(fSavedColor); | |
| 81 fPaint->setMaskFilter(NULL); | |
| 82 fCanvas->restore(); // to remove the translate we did earlier | |
| 83 fState = kDone; | |
| 84 } | |
| 85 } | |
| 86 | |
| 87 /////////////////////////////////////////////////////////////////////////////// | |
| 88 | |
| 89 static SkFlattenable::Registrar gReg("SkBlurDrawLooper", | |
| 90 SkBlurDrawLooper::CreateProc); | |
| 91 | |
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Chromium Code Reviews
Issue 113827:
Remove the remainder of the skia source code from the Chromium repo.... (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/