UnitRulerState class
The state class for UnitRuler, responsible for managing its dynamic behavior and UI.
Constructors
Properties
- context → BuildContext
-
The location in the tree where this widget builds.
no setterinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- isPosFixed ↔ bool
-
Flag indicating whether the position of the ruler is fixed.
getter/setter pair
- itemCount ↔ int
-
The number of items (unit intervals) on the ruler.
getter/setter pair
- lastOffset ↔ double
-
The last scroll offset position.
getter/setter pair
- mounted → bool
-
Whether this State object is currently in a tree.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- scrollController ↔ ScrollController
-
The scroll controller for managing scroll events of the ruler.
getter/setter pair
- value ↔ String
-
The current value displayed on the ruler.
getter/setter pair
- widget → UnitRuler
-
The current configuration.
no setterinherited
Methods
-
activate(
) → void -
Called when this object is reinserted into the tree after having been
removed via deactivate.
inherited
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
override
-
deactivate(
) → void -
Called when this object is removed from the tree.
inherited
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
didChangeDependencies(
) → void -
Called when a dependency of this State object changes.
inherited
-
didUpdateWidget(
covariant UnitRuler oldWidget) → void -
Called whenever the widget configuration changes.
override
-
dispose(
) → void -
Called when this object is removed from the tree permanently.
override
-
fixOffset(
) → void - Fixes the scroll offset position.
-
getPositionByValue(
num value) → double - Returns the position on the ruler corresponding to a specific value.
-
getRulerScaleValue(
int index) → num - Returns the ruler scale value for a given index.
-
initState(
) → void -
Called when this object is inserted into the tree.
override
-
isRangesChanged(
UnitRuler oldWidget) → bool - Checks if the ranges of the UnitRuler have changed compared to the old widget.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
reassemble(
) → void -
Called whenever the application is reassembled during debugging, for
example during hot reload.
inherited
-
setPositionByValue(
num value) → void - Sets the position of the ruler based on the provided value.
-
setState(
VoidCallback fn) → void -
Notify the framework that the internal state of this object has changed.
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
-
toStringShort(
) → String -
A brief description of this object, usually just the runtimeType and the
hashCode.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited