SpanList class

Manages AttributeSpans apart from the text to which they are to be applied.

Call shift when text is inserted and collapse when text is deleted.

Add attribute spans with merge and remove them with remove.

Note that SpanList is immutable. Any mutation operation will return a new SpanList.

Annotations

@immutable

Constructors

SpanList(Iterable<AttributeSpan>? spans): Create a SpanList.
factory
SpanList.fromSegments(Iterable<AttributeSegment> segments): Create a SpanList from segments.
factory

Properties

hashCode → int: The hash code for this object.
no setterinherited
iter → Iterable<AttributeSpan>: Get an iterator for the spans in this list.
no setter
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

Methods

collapse(Range range) → SpanList: Collapse span with a deletion at range.
getSegments(Characters t) → Iterable<AttributeSegment>: Get an iterator of the segments for this list.
getSpans(TextAttribute attribute) → Iterable<AttributeSpan>: Get the spans with the specified attribute.
getSpansIn(Range range, TextAttribute attribute) → Iterable<AttributeSpan>: Get the spans with the specified attribute in range.
getTypedSpans<T extends TextAttribute>() → Iterable<AttributeSpan>: Get the spans with attributes of type T.
getTypedSpansIn<T extends TextAttribute>(Range range) → Iterable<AttributeSpan>: Get the spans with attributes of type T in range.
isApplied(TextAttribute attribute, Range range) → bool: Returns true if attribute is applied to the full range of text.
isTypeApplied<T extends TextAttribute>(Range range) → bool: Returns true if an attribute of type T is applied to the full range of text.
merge(AttributeSpan span) → SpanList: Add a span. Merges touching spans with the same attribute or type.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
remove(AttributeSpan span) → SpanList: Remove span.
removeAll(TextAttribute attribute) → SpanList: Remove all spans with the given attribute.
removeFrom(Range range, TextAttribute attribute) → SpanList: Remove all spans with the given attribute from range.
removeType<T extends TextAttribute>() → SpanList: Remove all spans of type T.
removeTypeFrom<T extends TextAttribute>(Range range) → SpanList: Remove all spans with attributes of type T.
shift(int index, int length) → SpanList: Shift spans with an insertion at index with the given length.
toString() → String: A string representation of this object.
willApply(TextAttribute attribute, int index) → bool: Returns true if an insertion at index would apply attribute to it due to a span's ExpandRule.
willApplyType<T extends TextAttribute>(TextAttribute attribute, int index) → bool: Returns true if an insertion at index would apply an attribute of type T to it due to a span's ExpandRule.

Operators

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

Constants

empty → const SpanList: A SpanList without any spans.