UmbraWidget class abstract

Abstract widget that shader widgets who are generated by Umbra will use.

Inheritance

Constructors

UmbraWidget({Key? key, BlendMode blendMode = BlendMode.src, Widget? child, ShaderErrorWidgetBuilder? errorBuilder, ShaderCompilingBuilder? compilingBuilder})
Abstract widget that shader widgets who are generated by Umbra will use.
const

Properties

blendMode → BlendMode
The blend mode to use when applying the shader mask.
final
child → Widget?
The optional child widget to apply the shader mask to.
final
compilingBuilder → ShaderCompilingBuilder?
A builder that specifies the widget to display to the user while a shader is still compiling.
final
errorBuilder → ShaderErrorWidgetBuilder?
A builder function that is called if an error occurs during shader compilation.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
createElement() → StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
inherited
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
getFloatUniforms() → List<double>
Returns the float uniforms to pass to the shader.
getSamplerUniforms() → List<ImageShader>
Returns the sampler uniforms to pass to the shader.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
program() → Future<FragmentProgram>
The Fragment Shader program to use.
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String
A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a one-line detailed description of the object.
inherited
toStringShort() → String
A short, textual description of this widget.
inherited

Operators

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