ParagraphCache class

A cache of laid out Paragraphs. This is used to avoid laying out the same text multiple times, which is expensive.

Constructors

ParagraphCache(int maximumSize)

UncompleteDocumentation

Properties

hashCode → int

The hash code for this object.

no setter, inherited

length → int

Returns the number of Paragraphs in the cache.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

clear() → void

Clears the cache. This should be called when the same text and style pair no longer produces the same layout. For example, when a font is loaded.

getLayoutFromCache(int key) → Paragraph?

Returns a Paragraph for the given key. key is the same as the key argument to performAndCacheLayout.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

performAndCacheLayout(String text, TextStyle style, TextScaler textScaler, int key) → Paragraph

Applies style and textScaler to text and lays it out to create a Paragraph. The Paragraph is cached and can be retrieved with the same key by calling getLayoutFromCache.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited