TreeTheme class

Theme configuration for Tree appearance and behavior.

TreeTheme defines the visual styling and behavioral options for tree view components including branch lines, padding, expand icons, and selection modes. All properties are optional and fall back to theme defaults when not specified.

Example:

ComponentTheme<TreeTheme>(
  data: TreeTheme(
    branchLine: BranchLine.path,
    padding: EdgeInsets.all(12),
    expandIcon: true,
    allowMultiSelect: true,
    recursiveSelection: true,
  ),
  child: Tree(...),
)

Inheritance

• Object
• ComponentThemeData
• TreeTheme

Constructors

TreeTheme({BranchLine? branchLine, EdgeInsetsGeometry? padding, bool? expandIcon, bool? allowMultiSelect, bool? recursiveSelection})

Creates a theme for tree view components.

const

Properties

allowMultiSelect → bool?

Whether multiple nodes can be selected simultaneously.

final

branchLine → BranchLine?

The branch line style for connecting tree nodes.

final

expandIcon → bool?

Whether to show expand/collapse icons for nodes with children.

final

hashCode → int

The hash code for this object.

no setter, override

padding → EdgeInsetsGeometry?

Padding around the entire tree view content.

final

recursiveSelection → bool?

Whether selecting a parent node also selects its children.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

copyWith({ValueGetter<BranchLine?>? branchLine, ValueGetter<EdgeInsetsGeometry?>? padding, ValueGetter<bool?>? expandIcon, ValueGetter<bool?>? allowMultiSelect, ValueGetter<bool?>? recursiveSelection}) → TreeTheme

Creates a copy of this theme with the given fields replaced.

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.

override