Ugui source code analysis - maskutilities

One ： Preface

Mask related tools

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Two ： Source code analysis ——RectMask2D relevant

——Notify2DMaskStateChanged

The traversal sub object is loaded with the implementation IClippable Object of the interface ( Object to be clipped ), Call the RecalculateClipping Method , Add the object to be clipped to the corresponding RectMask2D In the sequence to be trimmed

——GetRectMaskForClippable

Find the first one on the parent object that meets the condition RectMask2D Components

——GetRectMasksForClip

Find all that meet the conditions on the parent object RectMask2D Components , Include yourself

——IsDescendantOrSelf

Judge child Whether the object is father Object or with father The objects are the same

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3、 ... and ： Source code analysis ——Mask relevant

——NotifyStencilStateChanged

The traversal sub object is loaded with the implementation IMaskable Object of the interface ( You can be yourself Mask The object of ), call RecalculateMasking Method , Recalculate the mask

——GetStencilDepth

Calculate between itself and the root canvas Mask The number of

——FindRootSortOverrideCanvas

Find the root canvas of an object