MagnifyingGlass class

A magnifying glass that enlarges the content beneath it.

Magnifies the content beneath this MagnifyingGlass at a level of magnificationScale and displays that content in a shape of the given size.

By default, MagnifyingGlass expects to be placed directly on top of the content that it magnifies. Due to the way that magnification works, if MagnifyingGlass is displayed with an offset from the content that it magnifies, that offset must be provided as offsetFromFocalPoint.

MagnifyingGlass was designed to operate across the entire screen. Using a MagnifyingGlass in a confined region may result in the magnifier mis-aligning the content that is magnifies.

Inheritance

Constructors

MagnifyingGlass.new({Key? key, Offset offsetFromFocalPoint = Offset.zero, required ShapeBorder shape, required Size size, required double magnificationScale})
const

Properties

hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
magnificationScale → double
The level of magnification applied to the content beneath this MagnifyingGlass, expressed as a multiple of the natural dimensions.
final
offsetFromFocalPoint → Offset
The offset from where the magnification is applied, to where this magnifier is displayed, in density independent pixels.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
shape → ShapeBorder
The shape of the magnifying glass.
final
size → Size
The size of the magnifying glass.
final

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
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
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, int wrapWidth = 65}) → 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