Crate kas 

KAS GUI Toolkit

This, the main KAS crate, is a wrapper over other crates designed to make content easily available while remaining configurable. The following crates (some optional, dependant on a feature flag) are re-exported by this crate:

• kas_core is re-export at the top-level
• easy-cast is re-export as cast
• kas_macros is an extended version of impl-tools, re-export at the top-level
• kas_widgets is re-export as widgets
• kas_image is re-export as image (svg or canvas feature)
• kas_view is re-export as view (view feature)

Also refer to:

• KAS Tutorials
• Examples
• Discuss

Modules

cast

Type conversion, success expected

config

Configuration items and utilities

dir

Direction types

draw

Draw APIs

event

Event handling

geom

Geometry data types

imageimage or svg or canvas

Canvas and Svg widgets over tiny-skia and resvg

layout

Layout utilities

messages

Standard messages

prelude

KAS prelude

runner

Runner, platforms and backends

text

Text functionality

theme

Theme API and sample implementations

util

Utilities

viewview

Views

widgets

KAS widget library

window

Special window widgets

Macros

cell_collection

Generate an anonymous struct which implements kas::CellCollection

collection

Generate an anonymous struct which implements kas::Collection

impl_anon

Construct a single-instance struct

impl_scope

Scope supporting impl Self and advanced attribute macros

widget_core

Type of the widget’s core

widget_index

Index of a child widget

Structs

ActionMoved

Action: widget has moved/opened/closed

ActionRedraw

Action: content must be redrawn

ActionResize

Action: widget must be resized

ChildIndices

An opaque type representing a set of usize indices

ChildIndicesIter

Owning iterator over ChildIndices

ConfigAction

Action: configuration data updates must be applied

Id

Widget identifier

Node

Type-erased widget with input data

WidgetPathIter

Iterator over Id path components

Enums

Role

Describes a widget’s purpose and capabilities

TextOrSource

A copy-on-write text value or a reference to another source

Traits

CellCollection

A collection with attached cell info

Collection

A collection of (child) widgets

Events

Widget event-handling

HasId

Types supporting conversion to Id

Layout

Positioning and drawing routines for Widgets

MacroDefinedLayout

Macro-defined layout

RoleCx

Context through which additional role properties may be specified

RoleCxExt

Convenience methods over a RoleCx

Tile

A sizable, drawable, identifiable, introspectible 2D tree object

TileExt

Extension trait over widgets

Viewport

Layout routines for scrollable content

Widget

The Widget trait

WidgetCore

Operations supported by a widget core

WidgetCoreRect

Extension for a widget core with a Rect

Attribute Macros

autoimpl

A variant of the standard derive macro

extends

A limited form of class inheritance

impl_default

Implement Default

impl_self

Implement a type with impl Self syntax

layout

Provide a default implementation of the Layout trait for a widget

widget

Attribute to implement the kas::Widget family of traits