Class XFontPeer

public XFontPeer(String name,
                 int style,
                 int size)

Creates a new XFontPeer for the specified font name, style and size.

Parameters:

name - the font name

style - the font style (bold / italic / normal)

size - the size of the font

public XFontPeer(String name,
                 Map<K,V> atts)

Creates a new XFontPeer for the specified font name and style attributes.

Parameters:

name - the font name

atts - the font attributes

public boolean canDisplay(Font font,
                          int c)

Implementation of Font.canDisplay(char)

Overrides:

canDisplay in interface ClasspathFontPeer

Parameters:

font - the font this peer is being called from. This may be useful if you are sharing peers between Font objects. Otherwise it may be ignored.

public int canDisplayUpTo(Font font,
                          CharacterIterator i,
                          int start,
                          int limit)

Implementation of Font.canDisplay(String), Font.canDisplay(char [], int, int), and Font.canDisplay(CharacterIterator, int, int).

Overrides:

canDisplayUpTo in interface ClasspathFontPeer

Parameters:

font - the font this peer is being called from. This may be useful if you are sharing peers between Font objects. Otherwise it may be ignored.

public GlyphVector createGlyphVector(Font font,
                                     FontRenderContext ctx,
                                     int[] glyphCodes)

Implementation of Font.createGlyphVector(FontRenderContext,int[]).

Overrides:

createGlyphVector in interface ClasspathFontPeer

Parameters:

font - the font object that the created GlyphVector will return when it gets asked for its font. This argument is needed because the public API of GlyphVector works with Font, not with font peers.

public GlyphVector createGlyphVector(Font font,
                                     FontRenderContext frc,
                                     CharacterIterator ci)

Implementation of Font.createGlyphVector(FontRenderContext,String), Font.createGlyphVector(FontRenderContext,char[]), and Font.createGlyphVector(FontRenderContext,CharacterIterator).

Overrides:

createGlyphVector in interface ClasspathFontPeer

Parameters:

font - the font object that the created GlyphVector will return when it gets asked for its font. This argument is needed because the public API of GlyphVector works with Font, not with font peers.

protected void finalize()

Frees the font in the X server.

Overrides:

finalize in interface Object

public byte getBaselineFor(Font font,
                           char c)

Implementation of Font.getBaselineFor(char)

Overrides:

getBaselineFor in interface ClasspathFontPeer

Parameters:

font - the font this peer is being called from. This may be useful if you are sharing peers between Font objects. Otherwise it may be ignored.

public FontMetrics getFontMetrics(Font font)

Returns the font metrics for the specified font.

Overrides:

getFontMetrics in interface ClasspathFontPeer

Parameters:

font - the font for which to fetch the font metrics

Returns:

the font metrics for the specified font

public String getGlyphName(Font font,
                           int glyphIndex)

Returns a name for the specified glyph. This is useful for generating PostScript or PDF files that embed some glyphs of a font. If the implementation follows glyph naming conventions specified by Adobe, search engines can extract the original text from the generated PostScript and PDF files.

This method is currently not used by GNU Classpath. However, it would be very useful for someone wishing to write a good PostScript or PDF stream provider for the javax.print package.

Names are not unique: Under some rare circumstances, the same name can be returned for different glyphs. It is therefore recommended that printer drivers check whether the same name has already been returned for antoher glyph, and make the name unique by adding the string ".alt" followed by the glyph index.

This situation would occur for an OpenType or TrueType font that has a post table of format 3 and provides a mapping from glyph IDs to Unicode sequences through a Zapf table. If the same sequence of Unicode codepoints leads to different glyphs (depending on contextual position, for example, or on typographic sophistication level), the same name would get synthesized for those glyphs. To avoid this, the font peer would have to go through the names of all glyphs, which would make this operation very inefficient with large fonts.

Overrides:

getGlyphName in interface ClasspathFontPeer

Parameters:

font - the font containing the glyph whose name is requested.

glyphIndex - the glyph whose name the caller wants to retrieve.

Returns:

the glyph name, or null if a font does not provide glyph names.

public LineMetrics getLineMetrics(Font font,
                                  CharacterIterator ci,
                                  int begin,
                                  int limit,
                                  FontRenderContext rc)

Returns the line metrics for this font and the specified string and font render context.

Overrides:

getLineMetrics in interface ClasspathFontPeer

public Rectangle2D getMaxCharBounds(Font font,
                                    FontRenderContext rc)

Implementation of Font.getMaxCharBounds(FontRenderContext)

Overrides:

getMaxCharBounds in interface ClasspathFontPeer

Parameters:

font - the font this peer is being called from. This may be useful if you are sharing peers between Font objects. Otherwise it may be ignored.

public int getMissingGlyphCode(Font font)

Implementation of Font.getMissingGlyphCode()

Overrides:

getMissingGlyphCode in interface ClasspathFontPeer

Parameters:

font - the font this peer is being called from. This may be useful if you are sharing peers between Font objects. Otherwise it may be ignored.

public int getNumGlyphs(Font font)

Implementation of Font.getNumGlyphs()

Overrides:

getNumGlyphs in interface ClasspathFontPeer

Parameters:

font - the font this peer is being called from. This may be useful if you are sharing peers between Font objects. Otherwise it may be ignored.

public String getPostScriptName(Font font)

Implementation of Font.getPSName()

Overrides:

getPostScriptName in interface ClasspathFontPeer

Parameters:

font - the font this peer is being called from. This may be useful if you are sharing peers between Font objects. Otherwise it may be ignored.

public Rectangle2D getStringBounds(Font font,
                                   CharacterIterator ci,
                                   int begin,
                                   int limit,
                                   FontRenderContext frc)

public String getSubFamilyName(Font font,
                               Locale locale)

Returns the name of this font face inside the family, for example “Light”.

This method is currently not used by Font. However, this name would be needed by any serious desktop publishing application.

Overrides:

getSubFamilyName in interface ClasspathFontPeer

Parameters:

font - the font whose sub-family name is requested.

locale - the locale for which to localize the name. If locale is null, the returned name is localized to the user’s default locale.

Returns:

the name of the face inside its family, or null if the font does not provide a sub-family name.

public boolean hasUniformLineMetrics(Font font)

Implementation of Font.hasUniformLineMetrics()

Overrides:

hasUniformLineMetrics in interface ClasspathFontPeer

Parameters:

font - the font this peer is being called from. This may be useful if you are sharing peers between Font objects. Otherwise it may be ignored.

public GlyphVector layoutGlyphVector(Font font,
                                     FontRenderContext frc,
                                     char[] chars,
                                     int start,
                                     int limit,
                                     int flags)

Implementation of Font.layoutGlyphVector(FontRenderContext,char[],int,int,int).

Overrides:

layoutGlyphVector in interface ClasspathFontPeer

Parameters:

font - the font object that the created GlyphVector will return when it gets asked for its font. This argument is needed because the public API of GlyphVector works with Font, not with font peers.