Filter class

🔬 Filter

A 🌟 Surface may be provided a 🔬 Filter to change filter appearance at all 📚 SurfaceLayers.

While a new 🌟 Surface employs 🔬 DEFAULT, where 👓 filteredLayers is NONE, a new 🔬 Filter defaults 👓 filteredLayers to BASE and _baseRadius to 4.0.

❗ See Consideration in library surface.dart doc

Regarding 👓 Filter.filteredLayers and 📊 Filter.radiusMap values.

Default 📊 radius passed to 💧 FX.blurry is _BLUR == 4.0 & minimum is 0.0003.

Constructors

Filter({SurfaceFX effect = FX.blurry, Set<SurfaceLayer> filteredLayers = BASE, Map<SurfaceLayer, double>? radiusMap, double? radiusBase, double? radiusMaterial, double? radiusChild, bool extendBaseFilter = false})
A 🌟 Surface may be provided a 🔬 Filter to change filter appearance at all 📚 SurfaceLayers.
const

Properties

effect → SurfaceFX
🤹‍♂️ Surface FX
final
extendBaseFilter → bool
If extendBaseFilter is true, the BackdropFilter for 📚 SurfaceLayer.BASE will extend to cover the Surface.margin padding.
final
filteredLayers → Set<SurfaceLayer>
Provide a Set{} to 👓 filteredLayers to specify which 📚 SurfaceLayers will have an effect 🤹‍♂️ SurfaceFX enabled.
final
hashCode → int
The hash code for this object.
no setterinherited
radiusMap → Map<SurfaceLayer, double>
Returns a Map<SurfaceLayer, double> via radiusByLayer, and so will always have an entry for every 📚 Layer, even if it is the default _BLUR == 4.0.
no setter
renderedRadiusBase → double
Checks if double 📊 _radiusBase was initialized and returns if so.
no setter
renderedRadiusChild → double
Checks if double 📊 _radiusChild was initialized and returns if so.
no setter
renderedRadiusMaterial → double
Checks if double 📊 _radiusMaterial was initialized and returns if so.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
radiusByLayer(SurfaceLayer layer) → double
Returns the corresponding renderedRadius_ field by 📚 SurfaceLayer switch.
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Constants

BASE → const Set<SurfaceLayer>
👓 Base
BASE_AND_CHILD → const Set<SurfaceLayer>
👓 Base & Child
BASE_AND_MATERIAL → const Set<SurfaceLayer>
👓 Base & Material
CHILD → const Set<SurfaceLayer>
👓 Child
DEFAULT → const Filter
A new 🌟 Surface defaults 🔬 Surface.filter to this DEFAULT, which differs from a (new) FilterSpec.
INNER_BILAYER → const Set<SurfaceLayer>
👓 Inner Bilayer
MATERIAL → const Set<SurfaceLayer>
👓 Material
NONE → const Set<SurfaceLayer>
👓 None
TRILAYER → const Set<SurfaceLayer>
👓 Trilayer