SevenSegmentDisplay class
7-segment display stateless widget.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- SegmentDisplay
- SevenSegmentDisplay
Constructors
- SevenSegmentDisplay({Key? key, required String value, SegmentStyle? segmentStyle, double? size, int? characterCount, double? characterSpacing, Color? backgroundColor})
-
Creates a 7-segment display.
const
Properties
- backgroundColor → Color
-
Color of display background
finalinherited
- characterCount → int?
-
Number of characters to display, used when building display.
finalinherited
-
characterMap
→ Map<
String, int> -
Mappings from character (string) to int (hex) which represents enabled and
disabled segments for given character.
finalinherited
- characterSpacing → double
-
Space between individual characters
finalinherited
- 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 setterinherited
- segmentStyle → SegmentStyle
-
Style for segments which defines shape, color or size for segments.
finalinherited
- size → double
-
Size of characters on display.
finalinherited
- value → String
-
Characters to be displayed on display.
finalinherited
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
inherited
-
canDisplay(
String character) → bool -
Returns
true
whencharacter
can be displayed on the display.inherited -
computeSize(
) → Size -
Returns current Size of whole display.
inherited
-
createDisplaySegments(
) → List< Segment> -
Creates whole display - all characters (all segments)
inherited
-
createDividerCharacter(
String character, double indent) → Segment? -
Creates special segment to display dividers like decimal point or colon.
inherited
-
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.
override
-
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