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Allow inheriting LayerFilter to customize filter behavior. #390
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…partyhuang_layerFilter # Conflicts: # test/baseline/version.json resolved by e5ca671 version
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。
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。
} | ||
return lastFilter; | ||
Paint paint; |
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Paint paint = {};
No description provided.