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font::ttf::os_2(3) [centos man page]

Font::TTF::OS_2(3)					User Contributed Perl Documentation					Font::TTF::OS_2(3)

NAME

       Font::TTF::OS_2 - the OS/2 table in a TTF font

DESCRIPTION

       The OS/2 table has two versions and forms, one an extension of the other. This module supports both forms and the switching between them.

INSTANCE VARIABLES

       No other variables than those in table and those in the standard:

	   Version
	   xAvgCharWidth
	   usWeightClass
	   usWidthClass
	   fsType
	   ySubscriptXSize
	   ySubScriptYSize
	   ySubscriptXOffset
	   ySubscriptYOffset
	   ySuperscriptXSize
	   ySuperscriptYSize
	   ySuperscriptXOffset
	   ySuperscriptYOffset
	   yStrikeoutSize
	   yStrikeoutPosition
	   sFamilyClass
	   bFamilyType
	   bSerifStyle
	   bWeight
	   bProportion
	   bContrast
	   bStrokeVariation
	   bArmStyle
	   bLetterform
	   bMidline
	   bXheight
	   ulUnicodeRange1
	   ulUnicodeRange2
	   ulUnicodeRange3
	   ulUnicodeRange4
	   achVendID
	   fsSelection
	   usFirstCharIndex
	   usLastCharIndex
	   sTypoAscender
	   sTypoDescender
	   sTypoLineGap
	   usWinAscent
	   usWinDescent
	   ulCodePageRange1
	   ulCodePageRange2
	   xHeight
	   CapHeight
	   defaultChar
	   breakChar
	   maxLookups

       Notice that versions 0, 1, 2 & 3 of the table are supported. Notice also that the Panose variable has been broken down into its elements.

METHODS

   $t->read
       Reads in the various values from disk (see details of OS/2 table)

   $t->out($fh)
       Writes the table to a file either from memory or by copying.

   $t->XML_element($context, $depth, $key, $value)
       Tidies up the hex values to output them in hex

   $t->XML_end($context, $tag, %attrs)
       Now handle them on the way back in

   $t->update
       Updates the OS/2 table by getting information from other sources:

       Updates the "firstChar" and "lastChar" values based on the MS table in the cmap.

       Updates the sTypoAscender, sTypoDescender & sTypoLineGap to be the same values as Ascender, Descender and Linegap from the hhea table
       (assuming it is dirty) and also sets usWinAscent to be the sum of Ascender+Linegap and usWinDescent to be the negative of Descender.

BUGS

       None known

AUTHOR

       Martin Hosken Martin_Hosken@sil.org. See Font::TTF::Font for copyright and licensing.

perl v5.16.3							    2012-05-17							Font::TTF::OS_2(3)

Check Out this Related Man Page

Font::TTF::Post(3pm)					User Contributed Perl Documentation				      Font::TTF::Post(3pm)

NAME

       Font::TTF::Post - Holds the Postscript names for each glyph

DESCRIPTION

       Holds the postscript names for glyphs. Note that they are not held as an array, but as indexes into two lists. The first list is the
       standard Postscript name list defined by the TrueType standard. The second comes from the font directly.

       Looking up a glyph from a Postscript name or a name from a glyph number is achieved through methods rather than variable lookup.

       This class handles PostScript table types of 1, 2, 2.5 & 3, but not version 4.  Support for version 2.5 is as per Apple spec rather than
       MS.

       The way to look up Postscript names or glyphs is:

	   $pname = $f->{'post'}{'VAL'}[$gnum];
	   $gnum = $f->{'post'}{'STRINGS'}{$pname};

INSTANCE VARIABLES

       Due to different systems having different limitations, there are various class variables available to control what post table types can be
       written.

       $Font::TTF::Post::no25
	   If set tells Font::TTF::Post::out to use table type 2 instead of 2.5 in case apps can't handle version 2.5.

       VAL Contains an array indexed by glyph number of Postscript names. This is used when writing out a font.

       STRINGS
	   An associative array of Postscript names mapping to the highest glyph with that name. These may not be in sync with VAL.

       In addition there are the standard introductory variables defined in the standard:

	   FormatType
	   italicAngle
	   underlinePosition
	   underlineThickness
	   isFixedPitch
	   minMemType42
	   maxMemType42
	   minMemType1
	   maxMemType1

METHODS

   $t->read
       Reads the Postscript table into memory from disk

   $t->out($fh)
       Writes out a new Postscript name table from memory or copies from disk

   $t->XML_element($context, $depth, $key, $val)
       Outputs the names as one block of XML

BUGS

       o   No support for type 4 tables

AUTHOR

       Martin Hosken Martin_Hosken@sil.org. See Font::TTF::Font for copyright and licensing.

perl v5.10.1							    2009-01-21						      Font::TTF::Post(3pm)
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