ice.pilots.html4
Class FontCache

java.lang.Object
  ice.pilots.html4.FontCache

public class FontCache

extends Object

The FontCache class is intended to provided Font caching throughout the html4 pilot. Ideally, No class in the package will construct their own Font objects, but will use this class to obtain references to Font objects from this class, allowing sharing of Font resources.

Constructor Summary

FontCache()

Method Summary

void	clear() Clear the FontCache
String	getDefaultFontFamily() Retrieve the id of the default font family used in the system This value is the index into the array of Font family names found in the system in startup.
Font	getTestedFont(char[] text, int start, int limit, CSSAttribs css) Retrieve a font which has been tested and verified to display a given passage of text correctly.
Font	getTestedFont(String text, CSSAttribs css) This method performs the same logic as above, but for objects who already have access to Strings.

Methods inherited from class java.lang.Object

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

Constructor Detail

FontCache

public FontCache()

Method Detail

getTestedFont

public Font getTestedFont(char[] text,
                          int start,
                          int limit,
                          CSSAttribs css)

Retrieve a font which has been tested and verified to display a given passage of text correctly. #3542. WARNING. As a side effect of this method call, if this method finds a font family that can render the characters properly, it will update the CSSAttribs object to 'remember' the new font_family. If the system contains no FontFamily that can display the text, the systemwide defaultFont (from defaultFontFamily) will be returned.

Parameters:

text - The chars to display

start - The starting character to test

limit - The number of characters to test

css - The CSSAttribs object defining the font characteristics

Returns:

A Font object that has been tested as able to display the Font.

getTestedFont

public Font getTestedFont(String text,
                          CSSAttribs css)

This method performs the same logic as above, but for objects who already have access to Strings. Currently, this would be the Swing widgets, but not the AWT widgets.

Parameters:

text - The chars to display

css - A CSSAttribs object containing hints of the first font to try

Returns:

A Font object that has been tested as able to display the Font.

getDefaultFontFamily

public String getDefaultFontFamily()

Retrieve the id of the default font family used in the system This value is the index into the array of Font family names found in the system in startup.

Returns:

The

clear

public void clear()

Clear the FontCache