Module java.desktop
Package javax.swing.text.html

# Class CSS

java.lang.Object
javax.swing.text.html.CSS

All Implemented Interfaces:
  `Serializable`

public class CSS extends Object implements Serializable
Defines a set of CSS attributes as a typesafe enumeration. The HTML View implementations use CSS attributes to determine how they will render. This also defines methods to map between CSS/HTML/StyleConstants. Any shorthand properties, such as font, are mapped to the intrinsic properties.

The following describes the CSS properties that are supported by the rendering engine:

- font-family
- font-style
- font-size (supports relative units)
- font-weight
- font
- color
- background-color (with the exception of transparent)
- background-image
- background-repeat
- background-position
- background
- text-decoration (with the exception of blink and overline)
- vertical-align (only sup and super)
- text-align (justify is treated as center)
- margin-top
- margin-right
- margin-bottom
- margin-left
- margin
- padding-top
- padding-right
- padding-bottom
- padding-left
- padding
- border-top-style
- border-right-style
- border-bottom-style
- border-left-style
- border-style (only supports inset, outset and none)
- border-top-color
- border-right-color
- border-bottom-color
- border-left-color
- border-color
- list-style-image
- list-style-type
- list-style-position

The following are modeled, but currently not rendered.

- font-variant
- background-attachment (background always treated as scroll)
- word-spacing
- letter-spacing
- text-indent
- text-transform
- line-height
- border-top-width (this is used to indicate if a border should be used)
- border-right-width
- border-bottom-width
- border-left-width
- border-width
- border-top
- border-right
- border-bottom
- border-left
- border
- width
- height
- float
- clear
- display
- white-space
- list-style

Note: for the time being we do not fully support relative units, unless noted, so that p { margin-top: 10% } will be treated as if no margin-top was specified.

See Also:
  - `StyleSheet`

## Nested Class Summary

Nested Classes
Modifier and Type
Class
Description
`static final class`
`CSS.Attribute`
Definitions to be used as a key on AttributeSet's that might hold CSS attributes.

## Constructor Summary

Constructors
Constructor
Description
`CSS()`
Constructs a CSS object.

## Method Summary

Modifier and Type
Method
Description
`static CSS.Attribute[]`
`getAllAttributeKeys()`
Return the set of all possible CSS attribute keys.
`static final CSS.Attribute`
`getAttribute(String name)`
Translates a string to a `CSS.Attribute` object.

### Methods declared in class java.lang.Object

`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

## Constructor Details

### CSS

public CSS()
Constructs a CSS object.

## Method Details

### getAllAttributeKeys

public static CSS.Attribute[] getAllAttributeKeys()
Return the set of all possible CSS attribute keys.

Returns:
  the set of all possible CSS attribute keys

### getAttribute

public static final CSS.Attribute getAttribute(String name)
Translates a string to a `CSS.Attribute` object. This will return `null` if there is no attribute by the given name.

Parameters:
  `name` - the name of the CSS attribute to fetch the typesafe enumeration for
Returns:
  the `CSS.Attribute` object, or `null` if the string doesn't represent a valid attribute key