Package org.apache.fop.afp.fonts

Class RasterFont

  • All Implemented Interfaces:
    FontMetrics
    public class RasterFont
extends AFPFont
    A font where each character is stored as an array of pixels (a bitmap). Such fonts are not easily scalable, in contrast to vectored fonts. With this type of font, the font metrics information is held in character set files (one for each size and style).

    • Field Detail

      • LOG

        protected static final org.apache.commons.logging.Log LOG
        Static logging instance

    • Constructor Detail

      • RasterFont

        public RasterFont​(java.lang.String name,
                  boolean embeddable)
        Constructor for the raster font requires the name, weight and style attribute to be available as this forms the key to the font.
        Parameters:
        name - the name of the font
        embeddable - true if the font is embeddable

    • Method Detail

      • addCharacterSet

        public void addCharacterSet​(int size,
                            CharacterSet characterSet)
        Adds the character set for the given point size
        Parameters:
        size - point size (in mpt)
        characterSet - character set

      • getCharacterSet

        public CharacterSet getCharacterSet​(int sizeInMpt)
        Get the character set metrics for the specified point size.
        Specified by:
        getCharacterSet in class AFPFont
        Parameters:
        sizeInMpt - the point size (in mpt)
        Returns:
        the character set metrics

      • getAscender

        public int getAscender​(int size)
        The ascender is the part of a lowercase letter that extends above the "x-height" (the height of the letter "x"), such as "d", "t", or "h". Also used to denote the part of the letter extending above the x-height.
        Parameters:
        size - the font size (in mpt)
        Returns:
        the ascender for the given point size

      • getUnderlinePosition

        public 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

        public int getUnderlineThickness​(int size)
        Description copied from class: AFPFont
        Returns the thickness of the underline.
        Specified by:
        getUnderlineThickness in interface FontMetrics
        Overrides:
        getUnderlineThickness in class AFPFont
        Parameters:
        size - font size
        Returns:
        the thickness in 1/1000ths of the font size

      • getCapHeight

        public int getCapHeight​(int size)
        Obtains the height of capital letters for the specified point size.
        Parameters:
        size - the font size (in mpt)
        Returns:
        the cap height for the specified point size

      • getDescender

        public int getDescender​(int size)
        The descender is the part of a lowercase letter that extends below the base line, such as "g", "j", or "p". Also used to denote the part of the letter extending below the base line.
        Parameters:
        size - the font size (in mpt)
        Returns:
        the descender for the specified point size

      • getXHeight

        public int getXHeight​(int size)
        The "x-height" (the height of the letter "x").
        Parameters:
        size - the font size (in mpt)
        Returns:
        the x height for the given point size

      • getWidth

        public int getWidth​(int character,
                    int size)
        Obtain the width of the character for the specified point size.
        Parameters:
        character - the character
        size - the font size (in mpt)
        Returns:
        the width for the given point size

      • getBoundingBox

        public java.awt.Rectangle getBoundingBox​(int character,
                                         int size)
        TODO
        Specified by:
        getBoundingBox in interface FontMetrics
        Specified by:
        getBoundingBox in class AFPFont
        Parameters:
        character - glyph index
        size - font size
        Returns:
        the scaled bounding box scaled in 1/1000ths of the given size

      • hasChar

        public boolean hasChar​(char c)
        Determines whether this font contains a particular character/glyph.
        Specified by:
        hasChar in class Typeface
        Parameters:
        c - character to check
        Returns:
        True if the character is supported, Falso otherwise

      • mapChar

        public char mapChar​(char c)
        Map a Unicode character to a code point in the font.
        Specified by:
        mapChar in class Typeface
        Parameters:
        c - character to map
        Returns:
        the mapped character

      • getEncodingName

        public java.lang.String getEncodingName()
        Get the encoding of the font.
        Specified by:
        getEncodingName in class Typeface
        Returns:
        the encoding