FontMetrics (Apache FOP Core 2.7 API)

All Known Subinterfaces:

FontDescriptor, FontMetricsMapper

All Known Implementing Classes:

AbstractOutlineFont, AFPFont, AFPFontConfig.AFPTrueTypeFont, Base14Font, CFFToType1Font, CIDFont, CustomFont, CustomFontMetricsMapper, DoubleByteFont, LazyFont, MultiByteFont, OutlineFont, RasterFont, SingleByteFont, SystemFontMetricsMapper, Typeface
```
public interface FontMetrics
```
Main interface for access to font metrics.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`int`	`getAscender(int size)` Returns the ascent of the font described by this FontMetrics object.
`Rectangle`	`getBoundingBox(int glyphIndex, int size)` Returns the bounding box of the glyph at the given index, for the given font size.
`int`	`getCapHeight(int size)` Returns the size of a capital letter measured from the font's baseline.
`int`	`getDescender(int size)` Returns the descent of the font described by this FontMetrics object.
`String`	`getEmbedFontName()` Returns the font name for font embedding (may include a prefix, Example: "1E28bcArialMT").
`Set<String>`	`getFamilyNames()` Returns the font's family names as a Set of Strings (Example: "Helvetica").
`String`	`getFontName()` Returns the "PostScript" font name (Example: "Helvetica-BoldOblique").
`FontType`	`getFontType()` Returns the type of the font.
`URI`	`getFontURI()` Returns the URI of the font file from which these metrics were loaded.
`String`	`getFullName()` Returns the font's full name (Example: "Helvetica Bold Oblique").
`Map<Integer,Map<Integer,Integer>>`	`getKerningInfo()` Returns the kerning map for the font.
`int`	`getMaxAscent(int size)` Returns the maximum ascent of the font described by this FontMetrics object.
`int`	`getStrikeoutPosition(int size)` Returns the distance from the baseline to the center of the strikeout line (negative value indicates below baseline).
`int`	`getStrikeoutThickness(int size)` Returns the thickness of the strikeout line.
`int`	`getUnderlinePosition(int size)` Returns the distance from the baseline to the center of the underline (negative value indicates below baseline).
`int`	`getUnderlineThickness(int size)` Returns the thickness of the underline.
`int`	`getWidth(int i, int size)` Return the width (in 1/1000ths of point size) of the character at code point i.
`int[]`	`getWidths()` Return the array of widths.
`int`	`getXHeight(int size)` Determines the typical font height of this FontMetrics object
`boolean`	`hasFeature(int tableType, String script, String language, String feature)` Determine if metrics supports specific feature in specified font table.
`boolean`	`hasKerningInfo()` Indicates if the font has kerning information.
`boolean`	`isMultiByte()` Determines whether the font is a multibyte font.

- Method Detail
  - getFontURI
```
URI getFontURI()
```
    Returns the URI of the font file from which these metrics were loaded.
    
    Returns:
    
    the font file's URI
  - getFontName
```
String getFontName()
```
    Returns the "PostScript" font name (Example: "Helvetica-BoldOblique").
    
    Returns:
    
    the font name
  - getFullName
```
String getFullName()
```
    Returns the font's full name (Example: "Helvetica Bold Oblique").
    
    Returns:
    
    the font's full name
  - getFamilyNames
```
Set<String> getFamilyNames()
```
    Returns the font's family names as a Set of Strings (Example: "Helvetica").
    
    Returns:
    
    the font's family names (a Set of Strings)
  - getEmbedFontName
```
String getEmbedFontName()
```
    Returns the font name for font embedding (may include a prefix, Example: "1E28bcArialMT").
    
    Returns:
    
    the name for font embedding
  - getFontType
```
FontType getFontType()
```
    Returns the type of the font.
    
    Returns:
    
    the font type
  - getMaxAscent
```
int getMaxAscent(int size)
```
    Returns the maximum ascent of the font described by this FontMetrics object. Note: This is not the same as getAscender().
    
    Parameters:
    
    size - font size
    
    Returns:
    
    ascent in milliponts
  - getAscender
```
int getAscender(int size)
```
    Returns the ascent of the font described by this FontMetrics object. It returns the nominal ascent within the em box.
    
    Parameters:
    
    size - font size
    
    Returns:
    
    ascent in milliponts
  - getCapHeight
```
int getCapHeight(int size)
```
    Returns the size of a capital letter measured from the font's baseline.
    
    Parameters:
    
    size - font size
    
    Returns:
    
    height of capital characters
  - getDescender
```
int getDescender(int size)
```
    Returns the descent of the font described by this FontMetrics object.
    
    Parameters:
    
    size - font size
    
    Returns:
    
    descent in milliponts
  - getXHeight
```
int getXHeight(int size)
```
    Determines the typical font height of this FontMetrics object
    
    Parameters:
    
    size - font size
    
    Returns:
    
    font height in millipoints
  - getWidth
```
int getWidth(int i,
             int size)
```
    Return the width (in 1/1000ths of point size) of the character at code point i.
    
    Parameters:
    
    i - code point index
    
    size - font size
    
    Returns:
    
    the width of the character
  - getWidths
```
int[] getWidths()
```
    Return the array of widths.
    This is used to get an array for inserting in an output format. It should not be used for lookup.
    
    Returns:
    
    an array of widths
  - getBoundingBox
```
Rectangle getBoundingBox(int glyphIndex,
                         int size)
```
    Returns the bounding box of the glyph at the given index, for the given font size.
    
    Parameters:
    
    glyphIndex - glyph index
    
    size - font size
    
    Returns:
    
    the scaled bounding box scaled in 1/1000ths of the given size
  - hasKerningInfo
```
boolean hasKerningInfo()
```
    Indicates if the font has kerning information.
    
    Returns:
    
    true if kerning is available.
  - getKerningInfo
```
Map<Integer,Map<Integer,Integer>> getKerningInfo()
```
    Returns the kerning map for the font.
    
    Returns:
    
    the kerning map
  - getUnderlinePosition
```
int getUnderlinePosition(int size)
```
    Returns the distance from the baseline to the center of the underline (negative value indicates below baseline).
    
    Parameters:
    
    size - font size
    
    Returns:
    
    the position in 1/1000ths of the font size
  - getUnderlineThickness
```
int getUnderlineThickness(int size)
```
    Returns the thickness of the underline.
    
    Parameters:
    
    size - font size
    
    Returns:
    
    the thickness in 1/1000ths of the font size
  - getStrikeoutPosition
```
int getStrikeoutPosition(int size)
```
    Returns the distance from the baseline to the center of the strikeout line (negative value indicates below baseline).
    
    Parameters:
    
    size - font size
    
    Returns:
    
    the position in 1/1000ths of the font size
  - getStrikeoutThickness
```
int getStrikeoutThickness(int size)
```
    Returns the thickness of the strikeout line.
    
    Parameters:
    
    size - font size
    
    Returns:
    
    the thickness in 1/1000ths of the font size
  - hasFeature
```
boolean hasFeature(int tableType,
                   String script,
                   String language,
                   String feature)
```
    Determine if metrics supports specific feature in specified font table.
    
    Parameters:
    
    tableType - type of table (GSUB, GPOS, ...), see GlyphTable.GLYPH_TABLE_TYPE_*
    
    script - to qualify feature lookup
    
    language - to qualify feature lookup
    
    feature - to test
    
    Returns:
    
    true if feature supported (and has at least one lookup)
  - isMultiByte
```
boolean isMultiByte()
```
    Determines whether the font is a multibyte font.
    
    Returns:
    
    True if it is multibyte

Interface FontMetrics

Method Summary

Method Detail

getFontURI

getFontName

getFullName

getFamilyNames

getEmbedFontName

getFontType

getMaxAscent

getAscender

getCapHeight

getDescender

getXHeight

getWidth

getWidths

getBoundingBox

hasKerningInfo

getKerningInfo

getUnderlinePosition

getUnderlineThickness

getStrikeoutPosition

getStrikeoutThickness

hasFeature

isMultiByte