UnitRuler class
A class representing the UnitRuler, a digital tool for measuring various units like weight and length.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- UnitRuler
Constructors
-
UnitRuler({Key? key, required ValueChangedCallback onValueChanged, required double width, required ScaleUnit scaleUnit, required EdgeInsetsGeometry? scalePadding, required Alignment scaleAlignment, required Axis scrollDirection, required double scaleMarkerPositionTop, required double scaleMarkerPositionLeft, required double height, required String scaleIntervalText(int index, num rulerScaleValue), required double scaleIntervalTextPosition, double scaleMargin = 0, List<
ScaleIntervalStyle> scaleIntervalStyles = const [ScaleIntervalStyle(scale: 0, color: Color.fromARGB(255, 188, 194, 203), width: 2, height: 32), ScaleIntervalStyle(color: Color.fromARGB(255, 188, 194, 203), width: 1, height: 20)], TextStyle scaleIntervalTextStyle = const TextStyle(color: Color.fromARGB(255, 188, 194, 203), fontSize: 14), Widget? scaleMarker, Color backgroundColor = Colors.white, ScaleController? controller}) -
Creates an instance of the UnitRuler.
This constructor initializes the ruler with default settings.
const
Properties
- backgroundColor → Color
-
The background color of the UnitRuler widget.
Used to customize the ruler's background.
final
- controller → ScaleController?
-
The controller used to manage the ruler's state and interactions.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- height → double
-
The height of the ruler widget.
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- onValueChanged → ValueChangedCallback
-
A callback function that is triggered when the value changes.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- scaleAlignment → Alignment
-
The alignment of the ruler.
final
-
scaleIntervalStyles
→ List<
ScaleIntervalStyle> -
A list of styles that determine how each unit interval is rendered.
final
- scaleIntervalText → String Function(int index, num rulerScaleValue)
-
A function that provides the text to display for a unit interval.
final
- scaleIntervalTextPosition → double
-
The position of the unit interval text.
final
- scaleIntervalTextStyle → TextStyle
-
The text style applied to the unit interval text.
final
- scaleMargin → double
-
The margin around the ruler, providing space between the ruler and its surrounding widgets.
final
- scaleMarker → Widget?
-
A widget that represents the marker displayed on the ruler.
final
- scaleMarkerPositionLeft → double
-
The horizontal position of the ruler marker.
final
- scaleMarkerPositionTop → double
-
The vertical position of the ruler marker.
final
- scalePadding → EdgeInsetsGeometry?
-
Padding for the ruler widget.
final
- scaleUnit → ScaleUnit
-
The name of the unit being measured.
final
- scrollDirection → Axis
-
The scroll direction of the ruler.
final
- width → double
-
The width of the ruler widget.
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< StatefulWidget> -
Creates the mutable state for this widget at a given location in the tree.
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, 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