Class CJKFont

java.lang.Object
com.gitlab.pdftk_java.com.lowagie.text.pdf.BaseFont
com.gitlab.pdftk_java.com.lowagie.text.pdf.CJKFont
class CJKFont extends BaseFont
Creates a CJK font compatible with the fonts in the Adobe Asian font Pack.

  • Field Details

    • CJK_ENCODING

      static final String CJK_ENCODING
      The encoding used in the PDF document for CJK fonts
      See Also:

    • FIRST

      private static final int FIRST
      See Also:

    • BRACKET

      private static final int BRACKET
      See Also:

    • SERIAL

      private static final int SERIAL
      See Also:

    • V1Y

      private static final int V1Y
      See Also:

    • cjkFonts

      static Properties cjkFonts

    • cjkEncodings

      static Properties cjkEncodings

    • allCMaps

      static Hashtable allCMaps

    • allFonts

      static Hashtable allFonts

    • propertiesLoaded

      private static boolean propertiesLoaded

    • fontName

      private String fontName
      The font name

    • style

      private String style
      The style modifier

    • CMap

      private String CMap
      The CMap name associated with this font

    • cidDirect

      private boolean cidDirect

    • translationMap

      private char[] translationMap

    • vMetrics

      private IntHashtable vMetrics

    • hMetrics

      private IntHashtable hMetrics

    • fontDesc

      private HashMap fontDesc

    • vertical

      private boolean vertical

  • Constructor Details

  • Method Details

    • loadProperties

      private static void loadProperties()

    • isCJKFont

      public static boolean isCJKFont(String fontName, String enc)
      Checks if its a valid CJK font.
      Parameters:
      fontName - the font name
      enc - the encoding
      Returns:
      true if it is CJK font

    • getWidth

      public int getWidth(String text)
      Description copied from class: BaseFont
      Gets the width of a String in normalized 1000 units.
      Overrides:
      getWidth in class BaseFont
      Parameters:
      text - the String to get the witdth of
      Returns:
      the width in normalized 1000 units

    • getRawWidth

      int getRawWidth(int c, String name)
      Description copied from class: BaseFont
      Gets the width from the font according to the Unicode char c or the name. If the name is null it's a symbolic font.
      Specified by:
      getRawWidth in class BaseFont
      Parameters:
      c - the unicode char
      name - the glyph name
      Returns:
      the width of the char

    • getKerning

      public int getKerning(char char1, char char2)
      Description copied from class: BaseFont
      Gets the kerning between two Unicode chars.
      Specified by:
      getKerning in class BaseFont
      Parameters:
      char1 - the first char
      char2 - the second char
      Returns:
      the kerning to be applied in normalized 1000 units

    • getFontDescriptor

      private PdfDictionary getFontDescriptor()

    • getCIDFont

      private PdfDictionary getCIDFont(PdfIndirectReference fontDescriptor, IntHashtable cjkTag)

    • getFontBaseType

      private PdfDictionary getFontBaseType(PdfIndirectReference CIDFont)

    • writeFont

      void writeFont(PdfWriter writer, PdfIndirectReference ref, Object[] params) throws DocumentException, IOException
      Description copied from class: BaseFont
      Outputs to the writer the font dictionaries and streams.
      Specified by:
      writeFont in class BaseFont
      Parameters:
      writer - the writer for this document
      ref - the font indirect reference
      params - several parameters that depend on the font type
      Throws:
      DocumentException - error in generating the object
      IOException - on error

    • getDescNumber

      private float getDescNumber(String name)

    • getBBox

      private float getBBox(int idx)

    • getFontDescriptor

      public float getFontDescriptor(int key, float fontSize)
      Gets the font parameter identified by key. Valid values for key are ASCENT, CAPHEIGHT, DESCENT and ITALICANGLE.
      Specified by:
      getFontDescriptor in class BaseFont
      Parameters:
      key - the parameter to be extracted
      fontSize - the font size in points
      Returns:
      the parameter in points

    • getPostscriptFontName

      public String getPostscriptFontName()
      Description copied from class: BaseFont
      Gets the postscript font name.
      Specified by:
      getPostscriptFontName in class BaseFont
      Returns:
      the postscript font name

    • getFullFontName

      public String[][] getFullFontName()
      Gets the full name of the font. If it is a True Type font each array element will have {Platform ID, Platform Encoding ID, Language ID, font name}. The interpretation of this values can be found in the Open Type specification, chapter 2, in the 'name' table.
      For the other fonts the array has a single element with {"", "", "", font name}.
      Specified by:
      getFullFontName in class BaseFont
      Returns:
      the full name of the font

    • getFamilyFontName

      public String[][] getFamilyFontName()
      Gets the family name of the font. If it is a True Type font each array element will have {Platform ID, Platform Encoding ID, Language ID, font name}. The interpretation of this values can be found in the Open Type specification, chapter 2, in the 'name' table.
      For the other fonts the array has a single element with {"", "", "", font name}.
      Specified by:
      getFamilyFontName in class BaseFont
      Returns:
      the family name of the font

    • readCMap

      static char[] readCMap(String name)

    • createMetric

      static IntHashtable createMetric(String s)

    • convertToHCIDMetrics

      static String convertToHCIDMetrics(int[] keys, IntHashtable h)

    • convertToVCIDMetrics

      static String convertToVCIDMetrics(int[] keys, IntHashtable v, IntHashtable h)

    • readFontProperties

      static HashMap readFontProperties(String name)

    • getUnicodeEquivalent

      public char getUnicodeEquivalent(char c)
      Description copied from class: BaseFont
      Gets the Unicode equivalent to a CID. The (inexistent) CID is translated as '\n'. It has only meaning with CJK fonts with Identity encoding.
      Overrides:
      getUnicodeEquivalent in class BaseFont
      Parameters:
      c - the CID code
      Returns:
      the Unicode equivalent

    • getCidCode

      public char getCidCode(char c)
      Description copied from class: BaseFont
      Gets the CID code given an Unicode. It has only meaning with CJK fonts.
      Overrides:
      getCidCode in class BaseFont
      Parameters:
      c - the Unicode
      Returns:
      the CID equivalent

    • hasKernPairs

      public boolean hasKernPairs()
      Checks if the font has any kerning pairs.
      Specified by:
      hasKernPairs in class BaseFont
      Returns:
      always false

    • charExists

      public boolean charExists(char c)
      Checks if a character exists in this font.
      Overrides:
      charExists in class BaseFont
      Parameters:
      c - the character to check
      Returns:
      true if the character has a glyph, false otherwise

    • setCharAdvance

      public boolean setCharAdvance(char c, int advance)
      Sets the character advance.
      Overrides:
      setCharAdvance in class BaseFont
      Parameters:
      c - the character
      advance - the character advance normalized to 1000 units
      Returns:
      true if the advance was set, false otherwise. Will always return false

    • setPostscriptFontName

      public void setPostscriptFontName(String name)
      Sets the font name that will appear in the pdf font dictionary. Use with care as it can easily make a font unreadable if not embedded.
      Specified by:
      setPostscriptFontName in class BaseFont
      Parameters:
      name - the new font name

    • setKerning

      public boolean setKerning(char char1, char char2, int kern)
      Description copied from class: BaseFont
      Sets the kerning between two Unicode chars.
      Specified by:
      setKerning in class BaseFont
      Parameters:
      char1 - the first char
      char2 - the second char
      kern - the kerning to apply in normalized 1000 units
      Returns:
      true if the kerning was applied, false otherwise

    • getCharBBox

      public int[] getCharBBox(char c)
      Description copied from class: BaseFont
      Gets the smallest box enclosing the character contours. It will return null if the font has not the information or the character has no contours, as in the case of the space, for example. Characters with no contours may also return [0,0,0,0].
      Overrides:
      getCharBBox in class BaseFont
      Parameters:
      c - the character to get the contour bounding box from
      Returns:
      an array of four floats with the bounding box in the format [llx,lly,urx,ury] or null

    • getRawCharBBox

      protected int[] getRawCharBBox(int c, String name)
      Specified by:
      getRawCharBBox in class BaseFont