ChoiceTree<T extends Object> class

SingleChoiceTree

Model to represent a single item for a nested tree of similar type.

This item has a required name field and can take an optional list of nested items for it's children.

By default, the children is an empty list. @typeIsOptional

Inheritance

Constructors

ChoiceTree({required T value, bool isSelected = false, bool isExpanded = false, List<ChoiceTree<T>> children = const <ChoiceTree<Never>>[], List<String> types = const <String>[]})
const
ChoiceTree.root({required T value, bool isSelected = true, bool isExpanded = true, List<ChoiceTree<T>> children = const <ChoiceTree<Never>>[], List<String> type = const <String>[]})
Creates a root node for the tree.
const

Properties

children → List<ChoiceTree<T>>
final
first → ChoiceTree<T>
The first element.
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
isEmpty → bool
Whether this collection has no elements.
no setterinherited
isExpanded → bool
final
isNotEmpty → bool
Whether this collection has at least one element.
no setterinherited
isParent → bool
Defines whether this object has children ChoiceTree. Returns true if the length of children is greater than 0.
no setter
isSelected → bool
final
iterable → Iterable<ChoiceTree<T>>
no setter
iterator → Iterator<ChoiceTree<T>>
A new Iterator that allows iterating the elements of this Iterable.
no setteroverride
last → ChoiceTree<T>
The last element.
no setterinherited
length → int
The number of elements in this Iterable.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
selected → ChoiceTree<T>
Get the selected node.
no setter
single → ChoiceTree<T>
Checks that this iterable has only one element, and returns that element.
no setterinherited
types → List<String>
Define a getter method called 'get type' that returns a List of String This method generates variations of a given list of strings called '_type' by joining successive elements of the filtered list with a dot ('.') separator.
no setter
value → T
final

Methods

add(ChoiceTree<T> child) → ChoiceTree<T>
any(bool test(ChoiceTree<T> element)) → bool
Checks whether any element of this iterable satisfies test.
inherited
asCollapsed(T value) → ChoiceTree<T>
asExpanded(T value) → ChoiceTree<T>
cast<R>() → Iterable<R>
A view of this iterable as an iterable of R instances.
inherited
contains(Object? element) → bool
Whether the collection contains an element equal to element.
inherited
copyWith({T? value, List<ChoiceTree<T>>? children, bool? selected, bool? expanded, List<String>? types}) → ChoiceTree<T>
Copy this object with the given fields replaced with the new values. If the new values are the same as the existing values, the existing object is returned. The children is an empty list by default.
elementAt(int index) → ChoiceTree<T>
Returns the indexth element.
inherited
every(bool test(ChoiceTree<T> element)) → bool
Checks whether every element of this iterable satisfies test.
inherited
expand<T>(Iterable<T> toElements(ChoiceTree<T> element)) → Iterable<T>
Expands each element of this Iterable into zero or more elements.
inherited
firstWhere(bool test(ChoiceTree<T> element), {ChoiceTree<T> orElse()?}) → ChoiceTree<T>
The first element that satisfies the given predicate test.
inherited
fold<T>(T initialValue, T combine(T previousValue, ChoiceTree<T> element)) → T
Reduces a collection to a single value by iteratively combining each element of the collection with an existing value
inherited
followedBy(Iterable<ChoiceTree<T>> other) → Iterable<ChoiceTree<T>>
Creates the lazy concatenation of this iterable and other.
inherited
forEach(void action(ChoiceTree<T> element)) → void
Invokes action on each element of this iterable in iteration order.
inherited
join([String separator = ""]) → String
Converts each element to a String and concatenates the strings.
inherited
lastWhere(bool test(ChoiceTree<T> element), {ChoiceTree<T> orElse()?}) → ChoiceTree<T>
The last element that satisfies the given predicate test.
inherited
map<T>(T toElement(ChoiceTree<T> e)) → Iterable<T>
The current elements of this iterable modified by toElement.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
reduce(ChoiceTree<T> combine(ChoiceTree<T> value, ChoiceTree<T> element)) → ChoiceTree<T>
Reduces a collection to a single value by iteratively combining elements of the collection using the provided function.
inherited
select(T value) → ChoiceTree<T>
Select the node with the given value. Unselect every other node except the given value.
singleWhere(bool test(ChoiceTree<T> element), {ChoiceTree<T> orElse()?}) → ChoiceTree<T>
The single element that satisfies test.
inherited
skip(int count) → Iterable<ChoiceTree<T>>
Creates an Iterable that provides all but the first count elements.
inherited
skipWhile(bool test(ChoiceTree<T> value)) → Iterable<ChoiceTree<T>>
Creates an Iterable that skips leading elements while test is satisfied.
inherited
take(int count) → Iterable<ChoiceTree<T>>
Creates a lazy iterable of the count first elements of this iterable.
inherited
takeWhile(bool test(ChoiceTree<T> value)) → Iterable<ChoiceTree<T>>
Creates a lazy iterable of the leading elements satisfying test.
inherited
toList({bool growable = true}) → List<ChoiceTree<T>>
Creates a List containing the elements of this Iterable.
inherited
toSet() → Set<ChoiceTree<T>>
Creates a Set containing the same elements as this iterable.
inherited
toString() → String
Returns a string representation of (some of) the elements of this.
inherited
where(bool test(ChoiceTree<T> element)) → Iterable<ChoiceTree<T>>
Creates a new lazy Iterable with all elements that satisfy the predicate test.
inherited
whereType<T>() → Iterable<T>
Creates a new lazy Iterable with all elements that have type T.
inherited

Operators

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