duskmoon_mermaid_renderer 1.8.0

Flutter RenderObject-based Mermaid renderer for Duskmoon UI.

duskmoon_mermaid_renderer

Flutter RenderObject-based Mermaid renderer for Duskmoon UI.

This package parses basic Mermaid flowcharts into an intermediate graph, computes a deterministic layout, builds render primitives, and paints diagrams directly with Flutter Canvas.

Status

Diagram type	v0.1 status
Flowchart	Supported, basic
Sequence	Planned
Class	Planned
State	Planned
ER	Planned
Pie	Planned
Gantt	Not yet
Mindmap	Not yet
Git graph	Not yet
C4	Not yet
Sankey	Not yet
XY chart	Not yet

Usage

const DmMermaidView(
  source: '''
flowchart LR
  A[Start] --> B{Decision}
  B -->|yes| C[OK]
''',
)

Stage APIs

final output = parseMermaid(source);
final layout = computeMermaidLayout(
  output.graph,
  const MermaidLayoutConfig(),
  const FlutterTextMeasurer(
    textDirection: TextDirection.ltr,
    textScaler: TextScaler.noScaling,
  ),
);
final scene = buildMermaidScene(layout, MermaidTheme.modern);

Limitations

The first release supports a small flowchart subset. It does not use SVG, WebView, JavaScript, Rust FFI, or platform-native rendering.

This package ports architecture and selected algorithms from mermaid-rs-renderer by 1jehuang, licensed under MIT.