MongolRichText class

A string of rich text in vertical Mongolian layout.

Based on RichText of Flutter version 1.5. After that RichText became a MultiChildRenderObjectWidget in order to support InlineSpans.

The MongolRichText widget displays text that uses multiple different styles. The text to display is described using a tree of TextSpan objects, each of which has an associated style that is used for that subtree. The text might break across multiple lines or might all be displayed on the same line depending on the layout constraints.

Text displayed in a MongolRichText widget must be explicitly styled. When picking which style to use, consider using DefaultTextStyle.of the current BuildContext to provide defaults. For more details on how to style text in a MongolRichText widget, see the documentation for TextStyle.

Consider using the MongolText widget to integrate with the DefaultTextStyle automatically. When all the text uses the same style, the default constructor is less verbose. The MongolText.rich constructor allows you to style multiple spans with the default text style while still allowing specified styles per span.

{@tool snippet}

This sample demonstrates how to mix and match text with different text styles using the MongolRichText Widget. It displays the text "Hello bold world," emphasizing the word "bold" using a bold font weight.

MongolRichText(
  text: TextSpan(
    text: 'Hello ',
    style: DefaultTextStyle.of(context).style,
    children: <TextSpan>[
      TextSpan(text: 'bold', style: TextStyle(fontWeight: FontWeight.bold)),
      TextSpan(text: ' world!'),
    ],
  ),
)

{@end-tool}

See also:

Inheritance

Constructors

MongolRichText({Key? key, required TextSpan text, MongolTextAlign textAlign = MongolTextAlign.top, bool softWrap = true, TextOverflow overflow = TextOverflow.clip, double textScaleFactor = 1.0, int? maxLines})
Creates a paragraph of rich text in vertical orientation for traditional Mongolian.
const

Properties

hashCode int
The hash code for this object.
no setterinherited
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
maxLines int?
An optional maximum number of lines for the text to span, wrapping if necessary. If the text exceeds the given number of lines, it will be truncated according to overflow.
final
overflow TextOverflow
How visual overflow should be handled.
final
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
softWrap bool
Whether the text should break at soft line breaks.
final
text TextSpan
The text to display in this widget.
final
textAlign MongolTextAlign
How the text should be aligned vertically.
final
textScaleFactor double
The number of font pixels for each logical pixel.
final

Methods

createElement() LeafRenderObjectElement
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
inherited
createRenderObject(BuildContext context) → MongolRenderParagraph
Creates an instance of the RenderObject class that this RenderObjectWidget represents, using the configuration described by this RenderObjectWidget.
override
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
override
didUnmountRenderObject(covariant RenderObject renderObject) → void
A render object previously associated with this widget has been removed from the tree. The given RenderObject will be of the same type as returned by this object's createRenderObject.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) String
A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) String
Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) String
Returns a one-line detailed description of the object.
inherited
toStringShort() String
A short, textual description of this widget.
inherited
updateRenderObject(BuildContext context, covariant MongolRenderParagraph renderObject) → void
Copies the configuration described by this RenderObjectWidget to the given RenderObject, which will be of the same type as returned by this object's createRenderObject.
override

Operators

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