SegmentDisplay class abstract

This class represents general segment display.

To create concrete segment display, extend SegmentDisplay class and implement createSingleCharacter method.

Inheritance
Implementers

Constructors

SegmentDisplay({Key? key, required String value, required Map<String, int> characterMap, double? size, SegmentStyle? segmentStyle, int? characterCount, double? characterSpacing, Color? backgroundColor})
const

Properties

backgroundColor → Color
Color of display background
final
characterCount → int?
Number of characters to display, used when building display.
final
characterMap → Map<String, int>
Mappings from character (string) to int (hex) which represents enabled and disabled segments for given character.
final
characterSpacing → double
Space between individual characters
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
segmentSize → Size
Size of segments.
no setter
segmentStyle → SegmentStyle
Style for segments which defines shape, color or size for segments.
final
size → double
Size of characters on display.
final
value → String
Characters to be displayed on display.
final

Methods

build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
canDisplay(String character) → bool
Returns true when character can be displayed on the display.
computeSize() → Size
Returns current Size of whole display.
createDisplaySegments() → List<Segment>
Creates whole display - all characters (all segments)
createDividerCharacter(String character, double indent) → Segment?
Creates special segment to display dividers like decimal point or colon.
createElement() → StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
inherited
createSingleCharacter(double indent) → List<Segment>
Creates segments to display a (single) character.
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}) → 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