Allow inheriting LayerFilter to customize filter behavior. #390
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Hparty
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domchen,
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domchen
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…partyhuang_layerFilter # Conflicts: # test/baseline/version.json resolved by e5ca671 version
domchen
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src/layers/Layer.cpp
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| std::shared_ptr<Image> Layer::createPictureImage(std::shared_ptr<Picture> picture, Point* offset) { | ||
| if (picture == nullptr) { | ||
| return nullptr; | ||
| } | ||
| auto bounds = picture->getBounds(); | ||
| bounds.roundOut(); | ||
| auto matrix = Matrix::MakeTrans(-bounds.x(), -bounds.y()); | ||
| auto image = Image::MakeFrom(std::move(picture), static_cast<int>(bounds.width()), | ||
| static_cast<int>(bounds.height()), &matrix); | ||
| if (offset) { | ||
| *offset = Point::Make(bounds.x(), bounds.y()); | ||
| } | ||
| return image; | ||
| } |
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这个加个静态函数是不是就行了？没有访问任何layer的属性。
domchen
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src/layers/Layer.cpp
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| return image; | ||
| } | ||
|
|
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| std::shared_ptr<Picture> Layer::getLayerContents(const DrawArgs& args, float contentScale) { | ||
| if (FloatNearlyZero(contentScale)) { | ||
| return nullptr; | ||
| } | ||
| Recorder recorder; | ||
| Recorder recorder{}; |
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是 Recorder recorder = {}; 编译器会优化成只有一次构造函数调用的。
domchen
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| } | ||
| return lastFilter; | ||
| Paint paint; |
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