StickySnap class final Snapping

Snapping that captures the divider onto a point during the drag and holds it there until the pointer escapes past escapeFactor * tolerance. The escape radius exceeding the capture radius is the hysteresis that prevents flicker at the boundary.

Inheritance

Constructors

StickySnap({required Iterable<double> points, double tolerance = SplitterDefaults.snapTolerance, double? pixelTolerance, double escapeFactor = SplitterDefaults.stickyEscapeFactor})
Creates sticky snapping with the given escapeFactor (> 1).

Properties

escapeFactor → double
The escape radius as a multiple of the capture radius (> 1). The divider holds a captured point until the pointer moves past escapeFactor * the active tolerance.
final
hashCode → int
The hash code for this object.
no setterinherited
pixelTolerance → double?
Largest distance in logical pixels from a point that still snaps. When set, it takes precedence over tolerance, giving a snap feel that does not change with the container size.
finalinherited
points → List<double>
Start fractions to snap to, each in [0, 1]. Unmodifiable.
finalinherited
props → List<Object?>
The list of properties that will be used to determine whether two instances are equal.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
stringify → bool?
If set to true, the toString method will be overridden to output this instance's props.
no setterinherited
tolerance → double
Largest distance (in effective ratio) from a point that still snaps. Used only when pixelTolerance is null.
finalinherited

Methods

copyWith({Iterable<double>? points, double? tolerance, Object? pixelTolerance = _noUpdate, double? escapeFactor}) → StickySnap
Returns a copy with the given shared fields replaced, preserving the concrete mode (and its mode-specific fields). Pass pixelTolerance: null to clear it (falling back to tolerance); omit it to keep the current value.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
override

Operators

operator ==(Object other) → bool
The equality operator.
inherited