Rich Document Model
Paragraph-based document model with full text styling: bold, italic, color, font family/size, subscript, superscript, and more.
Inline Images
Images flow with text as first-class inline objects, complete with live resize handles and undo/redo support.
Lists & Indentation
Bullet and numbered lists with multi-level nesting, block indent, first-line indent, and line spacing controls.
Import & Export
Import and export HTML, RTF, and DOCX (OpenXML) documents via the companion ParentElement.RichText.Export library.
Keyboard Shortcuts
Fully configurable shortcut system. Map any key combination to any editor action using the fluent ShortcutHandler API.
Undo / Redo
Deep undo/redo built into the document model. All editing operations — including image resize — are fully undoable.
Solution Structure
RichTextKit is split into focused libraries so you can take only what you need.
| Project | Purpose |
|---|---|
ParentElement.RichText.Core |
Platform-agnostic document model, controller, IO types, input handling |
ParentElement.RichText.Avalonia |
Avalonia controls: WordProcessor, RichTextEditor, DocumentToolBar, and rendering/clipboard platform layer |
ParentElement.RichText.Export |
HTML, RTF, and DOCX exporters (and importers) built on the Core IO layer |
Topten.RichTextKit |
Underlying text layout engine (Skia-based, external dependency) |
Quick Start
The fastest path to a working rich text editor is to add WordProcessor to your Avalonia window — it bundles the toolbar, editor canvas, and scrollbars.
<!-- In your AXAML -->
<Window xmlns:pe="clr-namespace:ParentElement.RichText.Avalonia;assembly=ParentElement.RichText.Avalonia">
<pe:WordProcessor x:Name="Editor" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" />
</Window>For lower-level control, use RichTextEditor directly and wire up a DocumentToolBar:
// code-behind
var controller = Editor.DocumentController;
// Apply styles programmatically
await controller.ApplyBold();
await controller.ApplyFontColor(SKColors.DodgerBlue);
// React to cursor/selection changes
controller.OnNavigation += info => UpdateMyToolbar(info);
// Export the document
var reader = controller.GetContentReader();
await new HtmlExporter(reader).ExportAsync("output.html");