Crate kas

KAS GUI Toolkit

KAS is a GUI library. This crate provides the following:

• the Widget trait family, with macros to implement them
• a layout solver and event handling for widgets
• building blocks including geom types and a draw API
• some pre-build widgets: the widget module

See also these external crates:

• kas-theme - docs.rs - theme API + themes
• kas-wgpu - docs.rs - WebGPU + winit integration

This document is a reference manual. There is currently no tutorial, but the examples provide a starting point.

Re-exports

pub extern crate easy_cast as cast;

Modules

adapter	Adapter widgets (wrappers)
class	Class-specific widget traits
dir	Direction types
draw	Drawing APIs
event	Event handling
geom	Geometry data types
layout	Layout solver
macros	Library macros
prelude	KAS prelude
text	Text functionality
updatable	Traits for shared data objects
widget	Widget library

Structs

CoreData	Common widget data
Future	A future value, pending UI operation
Popup	A widget which escapes its parent’s rect
TkAction	Action required after processing
WidgetId	Widget identifier
WindowId	Identifier for a window or pop-up

Traits

Boxed	Provides a convenient .boxed() method on implementors
Layout	Positioning and drawing routines for widgets
LayoutData	Trait to describe the type needed by the layout implementation.
Widget	Widget trait
WidgetChildren	Listing of a widget’s children
WidgetConfig	Widget configuration
WidgetCore	Base widget functionality
WidgetExt	Provides some convenience methods on widgets
Window	Functionality required by a window