Module widget 

Widget System: Composable UI components for terminal applications.

This module provides a collection of widgets that implement the Widget trait, allowing them to be composed into complex layouts and rendered to the terminal.

Available Widgets

• StreamWidget - Scrolling text viewport for streaming content (LLM output)
• TextInput - Single-line text input with cursor
• StatusBar - Three-section status bar (left, center, right)
• ProgressBar - Horizontal progress indicator

Widget Trait

All widgets implement the Widget trait, which provides:

• bounds() / set_bounds() - Layout management
• render(&mut Buffer) - Draw to the buffer
• handle_input(&InputEvent) -> bool - Input handling
• needs_redraw() / clear_redraw() - Dirty tracking

Example

use flywheel::widget::{Widget, TextInput, StatusBar};
use flywheel::Rect;

let mut input = TextInput::new(Rect::new(0, 23, 80, 1));
let mut status = StatusBar::new(Rect::new(0, 0, 80, 1));

status.set_all("Flywheel", "v0.1.0", "60 FPS");
input.set_content("Hello, world!");

// Render both widgets
input.render(buffer);
status.render(buffer);

Structs

ProgressBar

A horizontal progress bar widget.

ProgressBarConfig

Configuration for the progress bar widget.

ScrollBuffer

Ring buffer for storing lines with scrollback.

StatusBar

A three-section status bar (left, center, right).

StatusBarConfig

Configuration for the status bar widget.

StreamConfig

Configuration for the stream widget.

StreamWidget

A streaming text widget optimized for LLM token output.

Terminal

A terminal emulator widget.

TextInput

A single-line text input widget with cursor and editing support.

TextInputConfig

Configuration for the text input widget.

Enums

AppendResult

Result of an append operation.

ProgressStyle

Visual style for the progress bar.

Traits

Widget

A UI component that can be rendered to a buffer and handle input.