org.apache.fop.fonts

## Class FontInfo

- java.lang.Object
- - org.apache.fop.fonts.FontInfo

    public class FontInfo
    extends Object

The FontInfo holds font information for the layout and rendering of a fo document. This stores the list of available fonts that are setup by the renderer. The font name can be retrieved for the family style and weight.
Currently font supported font-variant small-caps is not implemented.

### Field Summary

Fields
`protected static org.apache.commons.logging.Log` `log` logging instance

### Constructor Summary

Constructors
Constructor and Description
`FontInfo()` Main constructor

### Method Summary

All Methods Static Methods Instance Methods Concrete Methods
`void` `addFontProperties(String internalFontKey, FontTriplet triplet)` Adds a new font triplet.
`void` `addFontProperties(String name, String[] families, String style, int weight)` Adds a series of new font triplets given an array of font family names.
`void` `addFontProperties(String name, String family, String style, int weight)` Adds a new font triplet.
`void` `addMetrics(String internalFontKey, FontMetrics metrics)` Adds font metrics for a specific font.
`static FontTriplet` `createFontKey(String family, String style, int weight)` Creates a key from the given strings.
`void` `dumpAllTripletsToSystemOut()` Diagnostic method for logging all registered fonts to System.out.
`FontTriplet` `findAdjustWeight(String family, String style, int weight)` Find a font with a given family and style by trying different font weights according to the spec.
`FontTriplet[]` `fontLookup(String[] families, String style, int weight)` Looks up a set of fonts.
`FontTriplet` `fontLookup(String family, String style, int weight)` Lookup a font.
`Font` `getFontInstance(FontTriplet triplet, int fontSize)` Retrieves a (possibly cached) Font instance based on a FontTriplet and a font size.
`Font` `getFontInstanceForAWTFont(Font awtFont)` Returns a suitable internal font given an AWT Font instance.
`Map<String,Typeface>` `getFonts()` Gets a Map of all registered fonts.
`String` `getFontStyleFor(String fontName)` Returns the font style for a particular font.
`Map<FontTriplet,String>` `getFontTriplets()` Gets a Map of all registered font triplets.
`int` `getFontWeightFor(String fontName)` Returns the font weight for a particular font.
`String` `getInternalFontKey(FontTriplet triplet)` Returns the internal font key (F1, F2, F3 etc.) for a given triplet.
`FontMetrics` `getMetricsFor(String fontName)` Returns the FontMetrics for a particular font
`FontTriplet` `getTripletFor(String fontName)` Returns the first triplet matching the given font name.
`List<FontTriplet>` `getTripletsFor(String fontName)` Returns all font triplet matching the given font name.
`Map<String,Typeface>` `getUsedFonts()` This is used by the renderers to retrieve all the fonts used in the document.
`boolean` `hasFont(String family, String style, int weight)` Determines if a particular font is available.
`boolean` `isSetupValid()` Checks if the font setup is valid (At least the ultimate fallback font must be registered.)
`void` `notifyStrokingSVGTextAsShapes(String fontFamily)` Notify listeners that the SVG text for the given font will be stroked as shapes.
`void` `setEventListener(FontEventListener listener)` Sets the font event listener that can be used to receive events about particular events in this class.
`void` `useFont(String internalName)` Tells this class that the font with the given internal name has been used.

### Methods inherited from class java.lang.Object

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

### Field Detail

#### log

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

logging instance

### Constructor Detail

#### FontInfo

    public FontInfo()

Main constructor

### Method Detail

#### setEventListener

    public void setEventListener(FontEventListener listener)

Sets the font event listener that can be used to receive events about particular events in this class.

Parameters:
  `listener` - the font event listener

#### isSetupValid

    public boolean isSetupValid()

Checks if the font setup is valid (At least the ultimate fallback font must be registered.)

Returns:
  True if valid

#### addFontProperties

    public void addFontProperties(String name,
                                  String family,
                                  String style,
                                  int weight)

Adds a new font triplet.

Parameters:
  `name` - internal key
  `family` - font family name
  `style` - font style (normal, italic, oblique...)
  `weight` - font weight

#### addFontProperties

    public void addFontProperties(String name,
                                  String[] families,
                                  String style,
                                  int weight)

Adds a series of new font triplets given an array of font family names.

Parameters:
  `name` - internal key
  `families` - an array of font family names
  `style` - font style (normal, italic, oblique...)
  `weight` - font weight

#### addFontProperties

    public void addFontProperties(String internalFontKey,
                                  FontTriplet triplet)

Adds a new font triplet.

Parameters:
  `internalFontKey` - internal font key
  `triplet` - the font triplet to associate with the internal key

#### addMetrics

    public void addMetrics(String internalFontKey,
                           FontMetrics metrics)

Adds font metrics for a specific font.

Parameters:
  `internalFontKey` - internal key
  `metrics` - metrics to register

#### useFont

    public void useFont(String internalName)

Tells this class that the font with the given internal name has been used.

Parameters:
  `internalName` - the internal font name (F1, F2 etc.)

#### getFontInstance

    public Font getFontInstance(FontTriplet triplet,
                                int fontSize)

Retrieves a (possibly cached) Font instance based on a FontTriplet and a font size.

Parameters:
  `triplet` - the font triplet designating the requested font
  `fontSize` - the font size
Returns:
  the requested Font instance

#### getFontInstanceForAWTFont

    public Font getFontInstanceForAWTFont(Font awtFont)

Returns a suitable internal font given an AWT Font instance.

Parameters:
  `awtFont` - the AWT font
Returns:
  a best matching internal Font

#### fontLookup

    public FontTriplet fontLookup(String family,
                                  String style,
                                  int weight)

Lookup a font.
Locate the font name for a given family, style and weight. The font name can then be used as a key as it is unique for the associated document. This also adds the font to the list of used fonts.

Parameters:
  `family` - font family
  `style` - font style
  `weight` - font weight
Returns:
  the font triplet of the font chosen

#### fontLookup

    public FontTriplet[] fontLookup(String[] families,
                                    String style,
                                    int weight)

Looks up a set of fonts.
Locate the font name(s) for the given families, style and weight. The font name(s) can then be used as a key as they are unique for the associated document. This also adds the fonts to the list of used fonts.

Parameters:
  `families` - font families (priority list)
  `style` - font style
  `weight` - font weight
Returns:
  the set of font triplets of all supported and chosen font-families in the specified style and weight.

#### notifyStrokingSVGTextAsShapes

    public void notifyStrokingSVGTextAsShapes(String fontFamily)

Notify listeners that the SVG text for the given font will be stroked as shapes.

Parameters:
  `fontFamily` - a SVG font family

#### findAdjustWeight

    public FontTriplet findAdjustWeight(String family,
                                        String style,
                                        int weight)

Find a font with a given family and style by trying different font weights according to the spec.

Parameters:
  `family` - font family
  `style` - font style
  `weight` - font weight
Returns:
  internal key

#### hasFont

    public boolean hasFont(String family,
                           String style,
                           int weight)

Determines if a particular font is available.

Parameters:
  `family` - font family
  `style` - font style
  `weight` - font weight
Returns:
  True if available

#### getInternalFontKey

    public String getInternalFontKey(FontTriplet triplet)

Returns the internal font key (F1, F2, F3 etc.) for a given triplet.

Parameters:
  `triplet` - the font triplet
Returns:
  the associated internal key or null, if not found

#### createFontKey

    public static FontTriplet createFontKey(String family,
                                            String style,
                                            int weight)

Creates a key from the given strings.

Parameters:
  `family` - font family
  `style` - font style
  `weight` - font weight
Returns:
  internal key

#### getFonts

    public Map<String,Typeface> getFonts()

Gets a Map of all registered fonts.

Returns:
  a read-only Map with font key/FontMetrics pairs

#### getFontTriplets

    public Map<FontTriplet,String> getFontTriplets()

Gets a Map of all registered font triplets.

Returns:
  a Map with FontTriplet/font key pairs

#### getUsedFonts

    public Map<String,Typeface> getUsedFonts()

This is used by the renderers to retrieve all the fonts used in the document. This is for embedded font or creating a list of used fonts.

Returns:
  a read-only Map with font key/FontMetrics pairs

#### getMetricsFor

    public FontMetrics getMetricsFor(String fontName)

Returns the FontMetrics for a particular font

Parameters:
  `fontName` - internal key
Returns:
  font metrics

#### getTripletsFor

    public List<FontTriplet> getTripletsFor(String fontName)

Returns all font triplet matching the given font name.

Parameters:
  `fontName` - The font name we are looking for
Returns:
  A list of matching font triplets

#### getTripletFor

    public FontTriplet getTripletFor(String fontName)

Returns the first triplet matching the given font name. As there may be multiple triplets matching the font name the result set is sorted first to guarantee consistent results.

Parameters:
  `fontName` - The font name we are looking for
Returns:
  The first triplet for the given font name

#### getFontStyleFor

    public String getFontStyleFor(String fontName)

Returns the font style for a particular font. There may be multiple font styles matching this font. Only the first found is returned. Searching is done on a sorted list to guarantee consistent results.

Parameters:
  `fontName` - internal key
Returns:
  font style

#### getFontWeightFor

    public int getFontWeightFor(String fontName)

Returns the font weight for a particular font. There may be multiple font weights matching this font. Only the first found is returned. Searching is done on a sorted list to guarantee consistent results.

Parameters:
  `fontName` - internal key
Returns:
  font weight

#### dumpAllTripletsToSystemOut

    public void dumpAllTripletsToSystemOut()

Diagnostic method for logging all registered fonts to System.out.