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Class org.w3c.css.properties.CssFontSize

java.lang.Object
   |
   +----org.w3c.css.properties.CssProperty
           |
           +----org.w3c.css.properties.CssFontSize

public class CssFontSize

extends CssProperty

implements CssFontConstant

   'font-size'

Value: <absolute-size> | <relative-size> | <length> | <percentage>
Initial: medium
Applies to: all elements
Inherited: yes
Percentage values: relative to parent element's font size

<absolute-size>

An <absolute-size> keyword is an index to a table of font sizes computed and kept by the UA. Possible values are: [ xx-small | x-small | small | medium | large | x-large | xx-large ]. On a computer screen a scaling factor of 1.5 is suggested between adjacent indexes; if the 'medium' font is 10pt, the 'large' font could be 15pt. Different media may need different scaling factors. Also, the UA should take the quality and availability of fonts into account when computing the table. The table may be different from one font family to another.

<relative-size>

A <relative-size> keyword is interpreted relative to the table of font sizes and the font size of the parent element. Possible values are: [ larger | smaller ]. For example, if the parent element has a font size of 'medium', a value of 'larger' will make the font size of the current element be 'large'. If the parent element's size is not close to a table entry, the UA is free to interpolate between table entries or round off to the closest one. The UA may have to extrapolate table values if the numerical value goes beyond the keywords.

Length and percentage values should not take the font size table into account when calculating the font size of the element.

Negative values are not allowed.

On all other properties, 'em' and 'ex' length values refer to the font size of the current element. On the 'font-size' property, these length units refer to the font size of the parent element.

Note that an application may reinterpret an explicit size, depending on the context. E.g., inside a VR scene a font may get a different size because of perspective distortion.

Examples:

   P { font-size: 12pt; }
   BLOCKQUOTE { font-size: larger }
   EM { font-size: 150% }
   EM { font-size: 1.5em }
   

If the suggested scaling factor of 1.5 is used, the last three declarations are identical.

CssFontSize()

Create a new FontSize

CssFontSize(CssExpression)

Creates a new CssFontSize

addToStyle(CssStyle)

Add this property to the CssStyle.

equals(CssProperty)

Compares two properties for equality.

get()

Returns the current value

getPropertyInStyle(CssStyle, boolean)

Get this property in the style.

getPropertyName()

Returns the name of this property

isSoftlyInherited()

Returns true if this property is "softly" inherited e.g.

toString()

Returns a string representation of the object.

 public CssFontSize()

Create a new FontSize

 public CssFontSize(CssExpression expression) throws InvalidParamException

Creates a new CssFontSize

Parameters:

expression - the expression of the size

Throws: InvalidParamException

The expression is incorrect

 public Object get()

Returns the current value

Overrides:

get in class CssProperty

 public boolean isSoftlyInherited()

Returns true if this property is "softly" inherited e.g. his value equals inherit

Overrides:

isSoftlyInherited in class CssProperty

 public String toString()

Returns a string representation of the object.

Overrides:

toString in class CssProperty

 public String getPropertyName()

Returns the name of this property

Overrides:

getPropertyName in class CssProperty

 public void addToStyle(CssStyle style)

Add this property to the CssStyle.

Parameters:

style - The CssStyle

Overrides:

addToStyle in class CssProperty

 public CssProperty getPropertyInStyle(CssStyle style,
                                       boolean resolve)

Get this property in the style.

Parameters:

style - The style where the property is

resolve - if true, resolve the style to find this property

Overrides:

getPropertyInStyle in class CssProperty

 public boolean equals(CssProperty property)

Compares two properties for equality.

Parameters:

value - The other property.

Overrides:

equals in class CssProperty

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