org.apache.fop.fonts
Class FontLoader

java.lang.Object
  org.apache.fop.fonts.FontLoader

Direct Known Subclasses:

TTFFontLoader, Type1FontLoader

public abstract class FontLoader
extends java.lang.Object

Base class for font loaders.

Field Summary

protected java.lang.String	fontFileURI URI representing the font file
protected java.io.InputStream	in the InputStream to load the font from
protected boolean	loaded true if the font has been loaded
protected static org.apache.commons.logging.Log	log logging instance
protected FontResolver	resolver the FontResolver to use for font URI resolution
protected CustomFont	returnFont the loaded font

Constructor Summary

FontLoader(java.lang.String fontFileURI, java.io.InputStream in, FontResolver resolver)
Default constructor.

Method Summary

CustomFont	getFont()
static CustomFont	loadFont(java.io.File fontFile, FontResolver resolver) Loads a custom font from a File.
static CustomFont	loadFont(java.lang.String fontFileURI, FontResolver resolver) Loads a custom font from a URI.
protected static CustomFont	loadFontFromInputStream(java.lang.String fontFileURI, FontResolver resolver, boolean isType1, java.io.InputStream in) Loads and returns a font given an input stream.
protected abstract void	read() Reads/parses the font data.

Methods inherited from class java.lang.Object

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

Field Detail

log

protected static org.apache.commons.logging.Log log

logging instance

fontFileURI

protected java.lang.String fontFileURI

URI representing the font file

in

protected java.io.InputStream in

the InputStream to load the font from

resolver

protected FontResolver resolver

the FontResolver to use for font URI resolution

returnFont

protected CustomFont returnFont

the loaded font

loaded

protected boolean loaded

true if the font has been loaded

Constructor Detail

FontLoader

public FontLoader(java.lang.String fontFileURI,
                  java.io.InputStream in,
                  FontResolver resolver)

Default constructor.

Parameters:

fontFileURI - the URI to the PFB file of a Type 1 font

in - the InputStream reading the PFM file of a Type 1 font

resolver - the font resolver used to resolve URIs

Method Detail

loadFont

public static CustomFont loadFont(java.io.File fontFile,
                                  FontResolver resolver)
                           throws java.io.IOException

Loads a custom font from a File. In the case of Type 1 fonts, the PFB file must be specified.

Parameters:

fontFile - the File representation of the font

resolver - the font resolver to use when resolving URIs

Returns:

the newly loaded font

Throws:

java.io.IOException - In case of an I/O error

loadFont

public static CustomFont loadFont(java.lang.String fontFileURI,
                                  FontResolver resolver)
                           throws java.io.IOException

Loads a custom font from a URI. In the case of Type 1 fonts, the PFB file must be specified.

Parameters:

fontFileURI - the URI to the font

resolver - the font resolver to use when resolving URIs

Returns:

the newly loaded font

Throws:

java.io.IOException - In case of an I/O error

loadFontFromInputStream

protected static CustomFont loadFontFromInputStream(java.lang.String fontFileURI,
                                                    FontResolver resolver,
                                                    boolean isType1,
                                                    java.io.InputStream in)
                                             throws java.io.IOException

Loads and returns a font given an input stream.

Parameters:

fontFileURI - font file uri

resolver - font resolver

isType1 - is it a type1 font?

in - input stream

Returns:

the loaded font.

Throws:

java.io.IOException - In case of an I/O error

read

protected abstract void read()
                      throws java.io.IOException

Reads/parses the font data.

Throws:

java.io.IOException - In case of an I/O error

getFont

public CustomFont getFont()
                   throws java.io.IOException

Throws:

java.io.IOException

See Also:

getFont()