Class Standard14Fonts

java.lang.Object
org.apache.pdfbox.pdmodel.font.Standard14Fonts

final class Standard14Fonts extends Object
The "Standard 14" PDF fonts, also known as the "base 14" fonts. There are 14 font files, but Acrobat uses additional names for compatibility, e.g. Arial.
  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    private static final Map<String,String>
    Contains all base names and alias names for the known fonts.
    private static final Map<String,FontMetrics>
    Contains the font metrics for the base fonts.
  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    private
     
  • Method Summary

    Modifier and Type
    Method
    Description
    static boolean
    containsName(String fontName)
    Returns true if the given font name is one of the known names, including alias.
    getAFM(String fontName)
    Returns the metrics for font specified by fontName.
    static String
    Returns the base name of the font which the given font name maps to.
    static Set<String>
    Returns the set of known font names, including aliases.
    private static void
    loadMetrics(String fontName)
    Loads the metrics for the base font specified by name.
    private static void
    mapName(String baseName)
    Adds a standard font name to the map of known aliases, to simplify the logic of finding font metrics by name.
    private static void
    mapName(String alias, String baseName)
    Adds an alias name for a standard font to the map of known aliases to the map of aliases (alias as key, standard name as value).

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  • Field Details

    • ALIASES

      private static final Map<String,String> ALIASES
      Contains all base names and alias names for the known fonts. For base fonts both the key and the value will be the base name. For aliases, the key is an alias, and the value is a base name. We want a single lookup in the map to find the font both by a base name or an alias.
    • FONTS

      private static final Map<String,FontMetrics> FONTS
      Contains the font metrics for the base fonts. The key is a base font name, value is a FontMetrics instance. Metrics are loaded into this map on demand, only if needed.
      See Also:
  • Constructor Details

    • Standard14Fonts

      private Standard14Fonts()
  • Method Details

    • loadMetrics

      private static void loadMetrics(String fontName) throws IOException
      Loads the metrics for the base font specified by name. Metric file must exist in the pdfbox jar under /org/apache/pdfbox/resources/afm/
      Parameters:
      fontName - one of the standard 14 font names for which to lod the metrics.
      Throws:
      IOException - if no metrics exist for that font.
    • mapName

      private static void mapName(String baseName)
      Adds a standard font name to the map of known aliases, to simplify the logic of finding font metrics by name. We want a single lookup in the map to find the font both by a base name or an alias.
      Parameters:
      baseName - the base name of the font; must be one of the 14 standard fonts
      See Also:
    • mapName

      private static void mapName(String alias, String baseName)
      Adds an alias name for a standard font to the map of known aliases to the map of aliases (alias as key, standard name as value). We want a single lookup in the map to find the font both by a base name or an alias.
      Parameters:
      alias - an alias for the font
      baseName - the base name of the font; must be one of the 14 standard fonts
    • getAFM

      public static FontMetrics getAFM(String fontName)
      Returns the metrics for font specified by fontName. Loads the font metrics if not already loaded.
      Parameters:
      fontName - name of font; either a base name or alias
      Returns:
      the font metrics or null if the name is not one of the known names
      Throws:
      IllegalArgumentException - if no metrics exist for that font.
    • containsName

      public static boolean containsName(String fontName)
      Returns true if the given font name is one of the known names, including alias.
      Parameters:
      fontName - the name of font, either a base name or alias
      Returns:
      true if the name is one of the known names
    • getNames

      public static Set<String> getNames()
      Returns the set of known font names, including aliases.
    • getMappedFontName

      public static String getMappedFontName(String fontName)
      Returns the base name of the font which the given font name maps to.
      Parameters:
      fontName - name of font, either a base name or an alias
      Returns:
      the base name or null if this is not one of the known names